SANTA FE ENERGY RESOURCES INC
S-3/A, 1994-05-12
CRUDE PETROLEUM & NATURAL GAS
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<PAGE>   1
 
   
      AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MAY 12, 1994
    
 
                                                       REGISTRATION NO. 33-52849
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                      ------------------------------------
 
   
                                Amendment No. 2
    
                                       to
 
                                    FORM S-3
 
                             REGISTRATION STATEMENT
                                   UNDER THE
                             SECURITIES ACT OF 1933
                      ------------------------------------
                        SANTA FE ENERGY RESOURCES, INC.
 
               (Exact name of Registrant as specified in charter)
 
<TABLE>
      <S>                                          <C>
                  DELAWARE                                        36-2722169
      (State or other jurisdiction of              (I.R.S. Employer Identification Number)
        incorporation or organization)
</TABLE>
 
     1616 SOUTH VOSS ROAD, SUITE 1000, HOUSTON, TEXAS 77057  (713) 783-2401
  (Address, including zip code, and telephone number, including area code, of
                   Registrant's principal executive offices)
 
    DAVID L. HICKS, 1616 SOUTH VOSS ROAD, SUITE 1000, HOUSTON, TEXAS 77057  
                                (713) 783-2401
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)
             ------------------------------------------------------
 
                                   COPIES TO:
 
<TABLE>
             <S>                                         <C>
                G. Michael O'Leary                           Marc S. Rosenberg
                or Robert V. Jewell                       Cravath, Swaine & Moore
              Andrews & Kurth L.L.P.                          Worldwide Plaza
             4200 Texas Commerce Tower                       825 Eighth Avenue
               Houston, Texas 77002                      New York, New York 10019
                  (713) 220-4200                              (212) 474-1000
</TABLE>                                           
 
             ------------------------------------------------------
 
     APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon as
practicable after this Registration Statement becomes effective.
 
     If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. / /
 
     If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. / /
             ------------------------------------------------------
 
     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.
<PAGE>   2
 
                                EXPLANATORY NOTE
 
     This Registration Statement contains two forms of Prospectus: one to be
used in connection with the offering of Senior Subordinated Debentures Due 2004
(the "Debenture Offering Prospectus") and the other to be used in connection
with a concurrent offering of Series A Convertible Preferred Stock (the
"Preferred Stock Offering Prospectus"). The closing of the offering being made
pursuant to the Debenture Offering Prospectus (the "Debenture Offering") is not
conditioned on the closing of the offering being made pursuant to the Preferred
Stock Offering Prospectus (the "Preferred Stock Offering"), and the closing of
the Preferred Stock Offering is not conditioned on the closing of the Debenture
Offering. The form of Debenture Offering Prospectus immediately follows this
page and is followed by the form of Preferred Stock Offering Prospectus.
<PAGE>   3
 
     INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A
     REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
     SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR
     MAY OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT
     BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR
     THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE
     SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE
     UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS
     OF ANY SUCH STATE.
 
                             SUBJECT TO COMPLETION
   
                                  MAY 12, 1994
    
 
PROSPECTUS
 
$100,000,000
 
SANTA FE ENERGY RESOURCES, INC.                                         [LOGO]
 
        % SENIOR SUBORDINATED DEBENTURES DUE 2004
 
The      % Senior Subordinated Debentures Due 2004 (the "Debentures") of Santa
Fe Energy Resources, Inc. (the "Company") are being offered (the "Offering") by
the Company. The Debentures will mature on           , 2004. Interest on the
Debentures will be payable semi-annually on           and           of each
year, beginning on           , 1994. The Debentures are not redeemable prior to
          , 1999. At any time on or after           , 1999, the Debentures are
redeemable at the option of the Company, in whole at any time or from time to
time in part, at the redemption prices set forth herein plus accrued and unpaid
interest, if any, to the date of redemption. See "Description of the
Debentures--Optional Redemption." The holders of the Debentures may require the
Company to purchase the Debentures, in whole or in part, upon the occurrence of
a Change of Control (as defined) and a subsequent Rating Decline (as defined) at
a purchase price equal to 101% of the principal amount thereof, plus accrued and
unpaid interest thereon, if any, to the date of purchase. See "Description of
the Debentures--Mandatory Repurchase upon Change of Control and Subsequent
Rating Decline."
 
The offering made hereby is part of a refinancing by the Company, consisting of
this Offering and a concurrent offering (the "Concurrent DECS Offering") of
10,700,000 shares of Dividend Enhanced Convertible StockSM--DECSSM (the "DECS").
This Offering is not conditioned on the Concurrent DECS Offering, and the
Concurrent DECS Offering is not conditioned on this Offering.
 
   
The Debentures will be general unsecured senior subordinated obligations of the
Company. The Debentures will rank subordinate in right of payment to all
existing and future Senior Indebtedness (as defined), pari passu with any future
senior subordinated indebtedness and senior to any future junior subordinated
indebtedness of the Company. After adjustment for application of the net
proceeds of this Offering and the Concurrent DECS Offering, Senior Indebtedness
at March 31, 1994 would have been $276.0 million. The Debentures will be
structurally subordinated to all liabilities of the Company's subsidiaries,
which would have totaled $54.0 million at March 31, 1994 after giving effect to
the application of the net proceeds from this Offering and the Concurrent DECS
Offering. See "Use of Proceeds."
    
 
The Company does not intend to list the Debentures on any securities exchange.
No assurance can be given that any market for the Debentures will develop or, if
such market develops, as to the liquidity of such market. See "Investment
Considerations--Absence of a Previous Market for the Debentures."
 
SEE "INVESTMENT CONSIDERATIONS" FOR A DISCUSSION OF CERTAIN FACTORS THAT SHOULD
BE CONSIDERED BY PROSPECTIVE INVESTORS BEFORE DECIDING TO INVEST IN THE
DEBENTURES.
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                        PRICE TO      UNDERWRITING   PROCEEDS TO
                                        PUBLIC(1)       DISCOUNT    COMPANY(1)(2)
<S>                                   <C>             <C>            <C>
Per Debenture.......................             %              %              %
Total...............................  $               $              $
</TABLE>                                                          
                                                                    
- --------------------------------------------------------------------------------
 
(1) Plus accrued interest, if any, from May   , 1994 to the date of delivery.
(2) Before deducting expenses payable by the Company estimated to be $500,000.
 
The Debentures are offered subject to receipt and acceptance by the
Underwriters, to prior sale and to the Underwriters' right to reject any order
in whole or in part and to withdraw, cancel or modify the offer without notice.
It is expected that delivery of the Debentures will be made at the office of
Salomon Brothers Inc, Seven World Trade Center, New York, New York, or through
the facilities of The Depository Trust Company, on or about May   , 1994.
 
SALOMON BROTHERS INC
                  DILLON, READ & CO. INC.
 
                                     LAZARD FRERES & CO.
 
                                                  CHEMICAL SECURITIES INC.
 
The date of this Prospectus is May   , 1994.
<PAGE>   4
 
IN CONNECTION WITH THIS OFFERING, THE UNDERWRITERS MAY OVER-ALLOT OR EFFECT
TRANSACTIONS THAT STABILIZE OR MAINTAIN THE MARKET PRICE OF THE DEBENTURES
OFFERED HEREBY AT A LEVEL ABOVE THAT WHICH MIGHT OTHERWISE PREVAIL IN THE OPEN
MARKET. SUCH TRANSACTIONS, IF COMMENCED, MAY BE DISCONTINUED AT ANY TIME.
 
                             AVAILABLE INFORMATION
 
     The Company is subject to the informational requirements of the Securities
Exchange Act of 1934, as amended, and the rules and regulations promulgated
thereunder (the "Exchange Act") and, in accordance therewith, files reports,
proxy statements and other information with the Securities and Exchange
Commission (the "Commission"). Reports, proxy statements and other information
filed by the Company with the Commission may be inspected and copied at the
public reference facilities maintained by the Commission at Room 1024, 450 Fifth
Street, N.W., Judiciary Plaza, Washington, D.C. 20549-1004, and at the following
Regional Offices of the Commission: Chicago Regional Office, Citicorp Center,
500 West Madison Street, Suite 1400, Chicago, Illinois 60621-2511; and New York
Regional Office, 7 World Trade Center, 13th Floor, New York, New York 10048.
Copies of such material may also be obtained at prescribed rates from the Public
Reference Section of the Commission at its principal office at 450 Fifth Street,
N.W., Judiciary Plaza, Washington, D.C. 20549-1004. The Company's common stock,
par value $0.01 per share (the "Common Stock"), and its Convertible Preferred
Stock, Series 7%, are listed for trading on the New York Stock Exchange. The
Company's registration statements, reports, proxy statements and other
information may also be inspected at the offices of the New York Stock Exchange,
20 Broad Street, New York, New York 10005.
 
                      DOCUMENTS INCORPORATED BY REFERENCE
 
   
     The following documents heretofore filed by the Company with the Commission
pursuant to Section 13 of the Exchange Act are incorporated herein by reference:
(i) the Company's Annual Report on Form 10-K for the year ended December 31,
1993; (ii) the Company's Quarterly Report on Form 10-Q for the quarterly period
ended March 31, 1994; and (iii) the Company's Current Report on Form 8-K dated
February 8, 1994.
    
 
     All documents filed by the Company pursuant to Section 13(a), 13(c), 14 or
15(d) of the Exchange Act subsequent to the date of this Prospectus and prior to
the termination of this Offering shall be deemed to be incorporated by reference
into this Prospectus and to be a part hereof from the date of filing of such
documents. Any statement contained in a document incorporated or deemed to be
incorporated by reference herein shall be deemed to be modified or superseded
for purposes of this Prospectus to the extent that a statement contained herein
or in any other subsequently filed document which also is or is deemed to be
incorporated by reference herein modifies or supersedes such statement. Any such
statement so modified or superseded shall not be deemed, except as so modified
or superseded, to constitute a part of this Prospectus.
 
     Any person receiving a copy of this Prospectus may obtain without charge,
upon written or oral request, a copy of any of the documents incorporated by
reference herein, except for the exhibits to such documents (unless such
exhibits are specifically incorporated by reference into such documents).
Requests should be addressed to Mark A. Older, Senior Counsel and Secretary,
Santa Fe Energy Resources, Inc., 1616 South Voss Road, Suite 1000, Houston,
Texas 77057 (telephone (713) 783-2401).
 
                              CERTAIN DEFINITIONS
 
     As used herein, the following terms have the specific meanings set out:
"Bbl" means barrel, "MBbl" means thousand barrels, "MMBbl" means million
barrels, "Mcf" means thousand cubic feet, "MMcf" means million cubic feet, "Bcf"
means billion cubic feet, "BOE" means barrel of oil equivalent, "MBOE" means
thousand barrels of oil equivalent and "MMBOE" means million barrels of oil
equivalent. Natural gas volumes are converted to barrels of oil equivalent using
the ratio of 6.0 Mcf of natural gas to 1.0 barrel of crude oil. Unless otherwise
indicated in this Prospectus, natural gas volumes are stated at the official
temperature and pressure bases of the area in which the reserves are located.
"Finding cost" refers to a fraction, of which the numerator is equal to the
costs incurred by the Company for property acquisition, exploration and
development and of which the denominator is equal to proved reserve additions
from extensions, discoveries, improved recovery, acquisitions and revisions of
previous estimates. "Improved recovery," "enhanced oil recovery" and "EOR"
include all methods of supplementing natural reservoir forces and energy, or
otherwise increasing ultimate recovery from a reservoir, such as waterfloods,
cyclic steam, steam drive and CO2 (carbon dioxide) injection and fireflood
projects. "Heavy oil" is low gravity, high viscosity crude oil.
 
                                        2
<PAGE>   5
 
                               PROSPECTUS SUMMARY
 
     The following information is a summary of the more detailed information and
financial statements appearing elsewhere or incorporated by reference in this
Prospectus and is qualified in its entirety by reference thereto. Unless
otherwise indicated or required by the context, references to "Santa Fe" and the
"Company" include its consolidated subsidiaries.
 
                                  THE COMPANY
 
GENERAL
 
     Santa Fe Energy Resources, Inc. ("Santa Fe" or the "Company") is engaged in
the exploration, development and production of oil and natural gas in the
continental United States and in certain foreign areas. At December 31, 1993,
the Company had estimated worldwide proved reserves of oil and natural gas
totaling 292.0 MMBOE (consisting of approximately 248.2 MMBbls of oil and
approximately 263.0 Bcf of natural gas), of which approximately 93% were
domestic reserves and approximately 7% were foreign reserves. During 1993, the
Company's worldwide production aggregated approximately 94.3 MBOE per day, of
which approximately 71% was crude oil and approximately 29% was natural gas. A
substantial portion of the Company's domestic oil production is in long-lived
fields with well-established production histories. Pursuant to the Company's
corporate restructuring program, the Company has focused its activities on its
three domestic core areas--the Permian Basin in Texas and New Mexico, the
offshore Gulf of Mexico and the San Joaquin Valley of California--as well as in
Argentina and Indonesia.
 
     For the five years ended December 31, 1993, the Company has replaced 172%
of its production at an average finding cost of $4.80 per BOE. Over the last
four years, the Company has increased overall production by increasing
production from existing properties and through acquisitions. In addition, the
Company has reduced its overall cost structure. For example, over the four-year
period ended December 31, 1993, Santa Fe has increased its average daily
production from 69.1 MBOE to 94.3 MBOE (including 7.7 MBOE per day in 1993
attributable to production from non-core assets sold pursuant to the corporate
restructuring program) and has reduced its average production costs (including
related production, severance and ad valorem taxes) from $6.22 per BOE in 1990
to $5.39 per BOE in 1993.
 
CORPORATE RESTRUCTURING PROGRAM
 
     In October 1993, the Company's Board of Directors adopted a broad corporate
restructuring program designed to improve its earnings and cash flow while
increasing production and replacing reserves in the long-term. The restructuring
program is the result of an intensive review of the Company's operations and
cost structure and focuses on the concentration of capital spending in the
Company's core operating areas and the disposition of non-core assets. The
restructuring program also includes an evaluation of the Company's capital and
cost structures in an effort to identify and implement ways to increase
flexibility and strengthen the Company's financial performance.
 
     The Company's capital program will be concentrated in its three domestic
core areas, as well as in its productive areas in Argentina and Indonesia. In
October 1993, Santa Fe announced that its 1994 capital expenditures could
increase to up to $240 million. However, as a result of the depressed crude oil
prices that have prevailed since November 1993, the Company, consistent with
industry practice, has determined to defer certain of its capital projects in
order to prudently manage available cash flow in the near term. Based on current
market conditions, the Company has authorized up to $130 million of capital
expenditures during 1994, a level which should allow the Company to replace its
estimated 1994 production, although no assurance can be given regarding such
replacement. The Company intends to continue to monitor its capital expenditure
program throughout the balance of 1994 and may, in response to industry
conditions, including, without limitation, prevailing oil and natural gas prices
and the outlook therefor, revise such program.
 
                                        3
<PAGE>   6
 
   
     The non-core asset dispositions identified by the Company's restructuring
program included the sale of its natural gas gathering and processing assets for
securities as well as the sales of non-core oil and gas properties consisting of
approximately 16.7 MMBOE of estimated proved reserves and undeveloped leasehold
acreage for approximately $89.3 million. In addition, during the first quarter
of 1994, the Company sold its remaining interest in the Santa Fe Energy Trust
for $11.3 million and its interest in certain oil and gas properties for $8.3
million. As a result of these transactions, the Company has disposed of
substantially all of its inventory of non-core assets.
    
 
     Based on a review of its capital structure, the Company determined to
proceed with a refinancing of certain of the Company's indebtedness (the
"Refinancing") in the belief that it would increase the Company's financial
flexibility, strengthen the Company's financial position and permit the Company
to pursue aggressively its operating strategy. See "--Financial Strategy." The
evaluation of the Company's cost structure resulted in the announcement on April
25, 1994 of the implementation of a cost reduction program designed to reduce
the Company's expenses by approximately $30.0 million from the 1993 level (which
reduction includes approximately $5.0 million of non-recurring costs).
Substantially all of this cost reduction program is expected to be implemented
by year end 1994.
 
     As part of its restructuring program, the Company adopted the following
operating, financial and cost reduction strategies that should position it to
continue to efficiently replace its production and increase its reserves even in
a low oil price environment.
 
OPERATING STRATEGY
 
     Santa Fe's operating strategy is designed to replace reserves and increase
its production in a cost effective manner by (i) exploiting its inventory of
lower risk, higher return projects in its domestic core areas, (ii) increasing
its light crude oil and natural gas reserves and production, and (iii)
increasing its international operations.
 
     Develop Domestic Properties in Core Areas.  A principal focus of the
Company's corporate restructuring program is the concentration of capital
spending in the Company's core domestic areas-- the Permian Basin of Texas and
New Mexico, the offshore Gulf of Mexico and the San Joaquin Valley of
California. In these areas, the Company has identified a significant number of
attractive development opportunities. Selection and timing of projects will
depend upon factors such as oil and natural gas prices and availability of
funds. In southeastern New Mexico, the Company has targeted for accelerated
development a light oil prospect in the Delaware formation and a light oil and
gas project in the Cisco-Canyon zone. The Company has conducted extensive
operations in these areas and has identified in excess of 150 development well
locations and 20 exploratory prospects to be drilled over the next several
years. During 1993, several new fields or field additions in the offshore Gulf
of Mexico area were placed on production, and the Company expects to further
develop identified prospects in 1994. In the San Joaquin Valley, reservoir
engineering studies prepared on behalf of the Company indicate that significant
additions to proved reserves can be made through additional EOR and development
projects in several of the Company's long-lived fields with well-established
production histories.
 
     Increase Light Crude Oil and Natural Gas.  A substantial part of the
Company's domestic oil reserves consists of "heavy" oil, which is generally more
expensive to produce than, and sells at a significant discount to, lighter crude
oils such as the benchmark West Texas Intermediate. See "Investment
Considerations--Effects of Heavy Oil Production" and "Management's Discussion
and Analysis of Financial Condition and Results of Operations--General." One of
the principal components of the Company's strategy is to reduce the proportion
of heavy oil in its reserves by increasing its lighter crude oil and natural gas
reserves, primarily through development drilling of its existing project
inventory (such as the Permian Basin and offshore Gulf of Mexico, as discussed
above) and selective acquisitions. The acquisition of Adobe Resources
Corporation ("Adobe") in May 1992 added significantly to the Company's lighter
crude oil and natural gas reserves.
 
     Increase International Operations.  The Company is actively engaged in
exploration and development activities in two foreign areas, Argentina and
Indonesia. The Company believes that it can continue
 
                                        4
<PAGE>   7
 
to identify and pursue other projects with the potential for increased reserves
and production in these and possibly other foreign areas. Revenues from sales of
oil and gas production in these areas have increased from approximately $3.7
million in 1991 to $35.6 million in 1993, with average daily production volumes
from these areas increasing from 0.6 MBOE per day in 1991 to 6.5 MBOE per day in
1993. The Company made a significant exploration discovery in 1993--the Sierra
Chata natural gas discovery in Argentina. To date, six gross (1.3 net) wells
have been drilled with no dry holes. In 1994, the Company plans additional
development drilling to further define the limits of the field, and to construct
a gas processing plant and a 40-mile pipeline. First sales of production from
this discovery are expected in early 1995.
 
FINANCIAL STRATEGY
 
   
     The Company's financial strategy is to provide additional flexibility in
the current low oil price environment thereby allowing the Company to further
implement its operating strategy. This Offering is part of the Refinancing,
consisting of this Offering and the Concurrent DECS Offering. DECS are
convertible preferred stock that, if not previously converted or redeemed, will
be mandatorily converted into Common Stock on March 31, 1998. The net proceeds
from the Refinancing will be utilized to repay a portion of Senior Indebtedness
and certain subsidiary debt (on a pro forma basis at March 31, 1994, an
aggregate of approximately $180 million of such indebtedness would be repaid
with such net proceeds). See "Use of Proceeds."
    
 
   
     Completion of the Refinancing will extend the average life of the Company's
debt from approximately 4.5 years to approximately 7.5 years, reduce the
Company's overall leverage and reduce required debt amortization in 1994, 1995
and 1996 to $3.7 million, $5.3 million, and $9.6 million, respectively (on a pro
forma basis at March 31, 1994). The Refinancing will also provide additional
liquidity by increasing the total amount available for borrowing under the
Company's existing bank credit facilities and by increasing cash flow in the
near term.
    
 
COST REDUCTION STRATEGY
 
   
     On April 25, 1994, the Company announced the implementation of a major cost
reduction program aimed at reducing its expenses by approximately $30.0 million
from the 1993 level (which reduction includes approximately $5.0 million of
non-recurring costs). The Company intends to reduce its field expenses by
approximately $10.0 million, reduce its salaried work force by approximately
20%, significantly improve the efficiency of its information systems activities
and substantially reduce other general and administrative costs. Substantially
all of this cost reduction program is expected to be implemented by year end
1994. The Company recorded a $7.0 million charge during the quarter ended March
31, 1994 in connection with implementation of the cost reduction program.
    
 
                                        5
<PAGE>   8
 
                             THE DEBENTURE OFFERING
 
   
<TABLE>
<S>                              <C>
Securities Offered............   $100,000,000 principal amount of    % Senior Subordinated
                                 Debentures Due 2004.
Maturity Date.................   , 2004.
Interest Payment Dates........   and           of each year, commencing           , 1994.
Optional Redemption...........   The Debentures are not redeemable prior to           , 1999.
                                 At any time on or after           , 1999, the Debentures are
                                 redeemable at the option of the Company, in whole or from
                                 time to time in part, at the redemption prices set forth
                                 herein plus accrued and unpaid interest, if any, to the date
                                 of redemption. See "Description of the Debentures--Optional
                                 Redemption."
Mandatory Redemption..........   Upon the occurrence of a Change of Control (as defined) and a
                                 subsequent Rating Decline (as defined), the Company will be
                                 required to offer to repurchase the Debentures at 101% of the
                                 principal amount thereof, plus accrued and unpaid interest
                                 due thereon, if any, to the date of purchase. See
                                 "Description of the Debentures--Mandatory Repurchase upon
                                 Change of Control and Subsequent Rating Decline."
Ranking.......................   The Debentures will be general unsecured senior subordinated
                                 obligations of the Company. The Debentures will rank
                                 subordinate in right of payment to all existing and future
                                 Senior Indebtedness, pari passu with any future senior
                                 subordinated indebtedness and senior to any future junior
                                 subordinated indebtedness of the Company. At March 31, 1994,
                                 the Company's outstanding Senior Indebtedness was $456.0
                                 million. After adjustment for application of the net proceeds
                                 from this Offering and the Concurrent DECS Offering, Senior
                                 Indebtedness at March 31, 1994 would have been $276.0
                                 million. The Debentures will be structurally subordinated to
                                 all liabilities of the Company's subsidiaries, which would
                                 have totaled $54.0 million at March 31, 1994, after giving
                                 effect to the application of the net proceeds from this
                                 Offering and the Concurrent DECS Offering.
Principal Covenants...........   The Indenture for the Debentures contains restrictions on (i)
                                 the ability of the Company to Incur additional Indebtedness,
                                 (ii) the payment of dividends on the Capital Stock of the
                                 Company and the purchase, redemption or retirement of Capital
                                 Stock of the Company, (iii) the making of certain
                                 investments, (iv) the Incurrence of certain Liens, (v) Asset
                                 Sales, (vi) certain transactions with Affiliates, (vii)
                                 payment restrictions affecting Restricted Subsidiaries and
                                 (viii) certain consolidations, mergers and transfers of
                                 assets. All of these limitations will be subject to a number
                                 of important qualifications. See "Description of the
                                 Debentures."
Use of Proceeds...............   The net proceeds to the Company from the sale of the
                                 Debentures offered hereby are estimated to be $97.0 million.
                                 Such net proceeds will be used to repay certain existing
                                 Senior Indebtedness. See "Use of Proceeds."
</TABLE>
    
 
                                        6
<PAGE>   9
 
                         SUMMARY FINANCIAL INFORMATION
 
   
     The following table presents summary historical financial information for
the periods presented and should be read in conjunction with the historical
consolidated financial statements, including the notes thereto, and
"Management's Discussion and Analysis of Financial Condition and Results of
Operations." The following table also presents summary pro forma financial
information as of and for the year ended December 31, 1993 and the three months
ended March 31, 1994 after giving effect to the consummation of this Offering
and the Concurrent DECS Offering and the application of the estimated net
proceeds therefrom as described in "Use of Proceeds." The summary pro forma
financial information and the summary historical financial information as of and
for the three months ended March 31, 1993 and 1994 is unaudited.
    
 
   
<TABLE>
<CAPTION>
                                PRO FORMA(A)            THREE MONTHS
                             -------------------      ENDED MARCH 31,                    YEAR ENDED DECEMBER 31,
                             1ST QTR      1993      --------------------    --------------------------------------------------
                               1994       YEAR        1994        1993        1993        1992      1991      1990      1989
                             --------   --------    --------    --------    --------    --------   -------   -------   -------
                                                       (IN MILLIONS, EXCEPT PER SHARE DATA)
<S>                          <C>        <C>         <C>         <C>         <C>         <C>        <C>       <C>       <C>
INCOME STATEMENT DATA:
  Revenues.................. $   90.3   $  436.9    $   90.3    $  115.3    $  436.9    $  427.5   $ 379.8   $ 382.9   $ 322.9
  Production and operating
    expenses................     40.6      163.8        40.6        42.7       163.8       153.4     134.6     135.5     107.1
  Exploration expenses......      5.0       31.0         5.0         7.1        31.0        25.5      18.7      21.0      19.4
  General and
    administrative..........      7.6       32.3         7.6         7.0        32.3        30.9      27.8      25.6      28.6
  Depreciation, depletion
    and amortization........     32.1      152.7        32.1        37.6       152.7       146.3     106.6     105.2      99.4
  Impairment of oil and gas
    properties..............       --       99.3(b)       --          --        99.3(b)       --        --       1.4       1.1
  Restructuring charges.....      7.0(c)    38.6(c)      7.0(c)       --        38.6(c)       --        --        --        --
  Income (loss) from
    operations..............       --     (113.0)         --        12.0      (113.0)       57.5      64.4      69.4      45.5
  Interest expense(d).......      9.1       40.7        10.3        13.7        45.8        55.6      47.3      57.1      30.5
  Net income (loss).........     (1.8)     (73.9)       (2.5)       (0.4)      (77.1)       (1.4)     18.5      17.0      49.8
  Earnings (loss) to Common
    Stock...................     (5.2)     (87.3)       (4.3)       (2.2)      (84.1)       (5.7)     18.5      17.0      49.8
  Earnings (loss) per share
    of Common Stock......... $  (0.06)  $  (0.97)   $  (0.05)   $  (0.02)   $  (0.94)   $  (0.07)  $  0.29   $  0.28        --
CASH FLOW DATA:
  Net cash provided by
    operating activities.... $    4.6   $  154.3    $   14.3    $   41.6    $  160.2    $  141.5   $ 128.4   $ 144.1   $ 173.1
  Capital expenditures......     30.5      127.0        30.5        30.0       127.0        76.8     108.1     117.0      93.7
  Preferred dividends.......      3.4       13.4         1.8         1.8         7.0         2.6        --        --        --
  Common Stock
    dividends(e)............       --       14.3          --         3.5        14.3        12.3      10.2       5.1        --

BALANCE SHEET DATA (AT END
  OF PERIOD):
  Properties and equipment,
    net..................... $  818.2   $  832.7    $  818.2    $1,076.5    $  832.7    $1,101.8   $ 797.4   $ 745.0   $ 747.6
  Total assets..............  1,044.5    1,079.0     1,042.2     1,278.9     1,076.9     1,337.2     911.9     911.1     881.8
  Long-term debt............    362.7      365.9       403.5       459.0       405.4       492.8     440.8     417.2     124.7
  Convertible Preferred
    Stock, Series 7%........     80.0       80.0        80.0        80.0        80.0        80.0        --        --        --
  Shareholders' equity......    411.9      414.8       320.7       412.8       323.6       416.6     225.1     215.8     228.1
OTHER DATA:
  EBITDA (in millions)(f)... $   24.1   $  178.0    $   24.1    $   51.4    $  178.0    $  188.0   $ 175.7   $ 190.9   $ 156.5
  EBITDA/Interest expense...      2.8x       4.4x        2.5x        4.6x        4.0x        3.5x      3.8x      3.3x      5.1x
  EBITDA/Preferred dividends
    and interest expense....      2.0x       3.3x        2.1x        3.4x        3.5x        3.3x      3.8x      3.3x      5.1x
  Ratio of earnings to
    combined fixed charges
    and preferred
    dividends(g)............       (h)        (h)         (h)         (h)         (h)         (h)      1.5x      1.3x      2.2x
</TABLE>
    
 
   
                                                   (See notes on following page)
    
 
                                        7
<PAGE>   10
 
- ---------------
 
(a) Pro forma for the consummation of this Offering and the Concurrent DECS
     Offering and the application of the net proceeds therefrom as described
     under "Use of Proceeds." Assumes 10,700,000 DECS are sold at a price of
    $8 7/8 per share.
 
(b) Reflects a non-cash charge of $99.3 million for the impairment of oil and
     gas properties recorded as of December 31, 1993. See "Management's
     Discussion and Analysis of Financial Condition and Results of Operations"
     and Note 1 of the Notes to the Company's Consolidated Financial Statements
     included elsewhere in this Prospectus.
 
   
(c) Reflects non-cash, non-recurring charges relating to implementation of the
     Company's restructuring program of (a) $38.6 million recorded in 1993
     comprised of (i) losses on property dispositions of $27.8 million; (ii)
     long-term debt prepayment penalties of $8.6 million; and (iii) accruals for
     certain personnel benefits and related costs of $2.2 million and (b) $7.0
     million recorded in the first quarter of 1994 comprised of severance,
     benefits and relocation expenses. See "Management's Discussion and Analysis
     of Financial Condition and Results of Operations" and Note 2 of the Notes
     to the Company's Consolidated Financial Statements included elsewhere in
     this Prospectus.
    
 
   
(d) Includes capitalized interest of $4.3 million, $4.9 million, $7.7 million,
     $10.6 million and $13.8 million for the years 1993, 1992, 1991, 1990 and
     1989, respectively, and $0.9 million and $1.1 million for the three months
     ended March 31, 1994 and 1993, respectively.
    
 
(e) Represents dividends paid subsequent to the Company's initial public
     offering in March 1990. Prior to such time, the Company was a wholly owned
     subsidiary of the Santa Fe Pacific Corporation, and dividends paid to its
     parent are not considered relevant in the context of its dividend policy
     subsequent to the initial public offering. As part of the Company's 1993
     restructuring program, in October 1993, the Company eliminated its $0.04
     per share quarterly dividend on Common Stock. See "Management's Discussion
     and Analysis of Financial Condition and Results of Operation."
 
   
(f) EBITDA is presented because it is a widely accepted financial indication of
     a company's ability to service and incur debt. EBITDA has the same meaning
     as in the Indenture since it excludes EBITDA of Unrestricted Subsidiaries
     (as defined). EBITDA should not be considered by an investor as an
     alternative to earnings (loss) as an indicator of the Company's operating
     performance or to cash flows as a measure of liquidity. EBITDA for the
     Company largely results from sales of oil and gas produced from the
     Company's properties, which production, if not replaced, will result in
     depletion of the Company's assets and a reduction of the Company's ability
     to service and incur debt at constant or declining prices. The calculation
     of EBITDA for 1993 reflects an average sales price (unhedged) by the
     Company of $12.93 per barrel of oil. For the three months ended March 31,
     1994, the average sales price (unhedged) for the Company's 1994 oil
     production was $10.00 per barrel. If such lower oil prices prevail
     throughout 1994, the Company's EBITDA for 1994 will be significantly lower
     than that for 1993.
    
 
(g) For the purpose of calculating such ratios, (i) earnings consist of income
     (loss) before income taxes plus fixed charges and (ii) fixed charges
     consist of interest expense (including amortization of deferred debt
     issuance costs) and the amount of pre-tax earnings required to cover
     preferred stock dividend requirements.
 
   
(h) Earnings for the three months ended March 31, 1994 and 1993 and the years
     ended December 31, 1993 and 1992 were insufficient to cover combined fixed
     charges and preferred dividends by $12.2 million, $3.7 million, $166.0
     million and $12.8 million, respectively. Pro forma earnings for the three
     months ended March 31, 1994 and the year ended December 31, 1993, after
     giving effect to the consummation of this Offering and the Concurrent DECS
     Offering and the application of the estimated net proceeds therefrom as
     described in "Use of Proceeds," would have been insufficient to cover fixed
     charges by $13.6 million and $171.4 million, respectively.
    
 
                                        8
<PAGE>   11
 
                             SUMMARY OPERATING DATA
 
   
<TABLE>
<CAPTION>
                                                THREE MONTHS ENDED
                                                     MARCH 31,                          YEAR ENDED DECEMBER 31,
                                                -------------------     -------------------------------------------------------
                                                 1994        1993        1993        1992        1991        1990        1989
                                                -------     -------     -------     -------     -------     -------     -------
<S>                                             <C>         <C>         <C>         <C>         <C>         <C>         <C>
Production of oil (MBbls per day)(a)..........     66.0(d)     67.3(d)     66.7(d)     62.5        55.5        52.0        50.7
Production of natural gas (MMcf per day)(a)...    155.5(d)    177.8(d)    165.4(d)    126.3        95.2       102.5        81.6
Production of oil equivalent
  (MBOE per day)(a)...........................     91.9(d)     96.9(d)     94.3(d)     83.6        71.4        69.1        64.3
Average sales price:
    Oil (per Bbl).............................  $ 10.00     $ 13.73     $ 12.93     $ 14.54     $ 14.09     $ 17.90     $ 14.11
    Natural gas (per Mcf).....................  $  2.10     $  1.96     $  2.03     $  1.71     $  1.49     $  1.57     $  1.72
Production costs (including related
  production, severance and ad valorem taxes)
  per BOE.....................................  $  5.59     $  5.53     $  5.39     $  5.66     $  6.06     $  6.22     $  5.69
Five-year average finding cost per BOE(b).....                          $  4.80     $  4.05     $  3.66     $  3.73     $  4.31
Annual reserve replacement ratio(c)...........                              121%        262%        127%        108%        251%
Estimated reserve life (in years).............                              8.5(d)      9.9         9.9        10.0        10.7
</TABLE>
    
 
- ---------------
 
(a) Includes production attributable to certain net profits interests sold by
     the Company to unaffiliated persons, which interests burden the Company's
     working or royalty interests held in certain properties.
 
(b) Reflects the average finding cost per BOE during the five years ended
     December 31 as of the year reflected in the column.
 
(c) The annual reserve replacement ratio is a fraction, of which the numerator
     is the estimated number of reserves added during a year through additions
     of estimated proved reserves from exploratory and development drilling,
     acquisitions of proved properties and revisions of previous estimates,
     excluding property sales, and of which the denominator is the oil and
     natural gas produced during that year.
 
   
(d) Includes production attributable to the properties sold to Vintage
     Petroleum, Inc. ("Vintage") (closed in November 1993) and Bridge Oil
     (U.S.A.) Inc. ("Bridge") (closed in April 1994). Production attributable to
     such properties during the year ended December 31, 1993 totaled
     approximately 4.1 MBbls of oil and 21.7 MMcf of natural gas per day (7.7
     MBOE per day). Production during the three months ended March 31, 1993
     attributable to the properties sold to Vintage totaled approximately 3.2
     MBbls of oil per day and approximately 7.0 MMcf of natural gas per day (4.4
     MBOE per day). Production during the three months ended March 31, 1993 and
     1994 attributable to the properties sold to Bridge totaled approximately
     1.4 MBbls of oil per day and approximately 14.6 MMcf of natural gas per day
     (3.8 MBOE per day), and approximately 1.3 MBbls of oil per day and
     approximately 13.5 MMcf of natural gas per day (3.6 MBOE per day),
     respectively.
    
 
                                        9
<PAGE>   12
 
                    SUMMARY OIL AND GAS RESERVE INFORMATION
 
     The following table sets forth summary information with respect to the
Company's proved oil and gas reserves as of the dates indicated. For additional
information relating to reserves, see "Business and Properties--Reserves."
 
<TABLE>
<CAPTION>
                                                   NET PROVED RESERVES AS OF DECEMBER 31,(A)
                                          ------------------------------------------------------------
                                           1993(B)        1992        1991         1990         1989
                                          ----------     -------     -------     --------     --------
<S>                                       <C>            <C>         <C>         <C>          <C>
Crude oil, condensate and natural gas
  liquids (MMBbls)....................        248.2        255.1       229.2        222.3        219.8
Natural gas (Bcf).....................        263.0        277.5       170.8        185.9        188.0
Proved reserves (MMBOE)...............        292.0        301.5       257.7        253.3        251.1
Proved developed reserves (MMBOE).....        225.5        248.4       210.3        205.0        204.0
Present value of pre-tax future net
  cash flows (in millions)(c).........     $  567.8      $ 915.2     $ 602.6     $1,231.4     $1,090.1
</TABLE>
 
- ---------------
 
(a) Includes estimated proved reserves attributable to certain net profits
     interests sold by the Company to unaffiliated persons, which interests
     burden the Company's working or royalty interests held in certain
     properties.
 
(b) The estimates set forth in this table for 1993 give effect to the sale by
     the Company of approximately 8.0 MMBOE of proved reserves to Bridge, which
     sale closed in April 1994.
 
(c) Represents the present value (discounted at 10%) of the future net cash
     flows estimated to result from production of the Company's estimated proved
     reserves using estimated sales prices and estimates of production costs, ad
     valorem and production taxes and future development costs necessary to
     produce such reserves. The sales prices used in the determination of proved
     reserves and of estimated future net cash flows are based on the prices in
     effect at year end, and for 1993 averaged $9.27 per barrel for oil and
     $2.17 per Mcf for natural gas. The average sales prices (unhedged) realized
     by the Company for its production during 1993 was $12.93 per barrel for oil
     and $2.03 per Mcf for natural gas. The average sales prices (unhedged)
     realized by the Company for its production during the three months ended
     March 31, 1994 were $10.00 per barrel of oil and $2.10 per Mcf of natural
     gas.
 
                                       10
<PAGE>   13
 
                           INVESTMENT CONSIDERATIONS
 
     Before deciding to invest in the Debentures offered hereby, prospective
investors should carefully consider all of the information contained in this
Prospectus, and in particular the investment considerations described in the
following paragraphs.
 
   
SUBSTANTIAL LEVERAGE
    
 
   
     The Company is, and after the Refinancing will continue to be, highly
leveraged. At March 31, 1994, the Company had total indebtedness of $446.4
million and shareholders' equity of $320.7 million. After giving effect to the
Offering, the Concurrent DECS Offering and the application of the estimated net
proceeds therefrom as described in "Use of Proceeds," the Company would have
had, on a pro forma basis at March 31, 1994, total indebtedness of $366.4
million and shareholders' equity of $411.9 million. If this Offering is
completed but the Concurrent DECS Offering is not consummated, the Company's pro
forma total indebtedness and shareholders' equity at March 31, 1994 would have
been $455.5 million and $320.4 million, respectively. The Company's high degree
of leverage will have important consequences to holders of the Debentures,
including the following: (i) the ability of the Company to obtain additional
financing in the future for working capital, acquisitions, capital expenditures
and other general corporate purposes may be impaired; (ii) a substantial portion
of the Company's cash flow from operations will be required to be dedicated to
the payment of the Company's interest expense and principal repayment
obligations; (iii) the Company is more highly leveraged than many of its
competitors, which may place it at a competitive disadvantage; and (iv) the
Company's degree of leverage may make it more vulnerable to a downturn in its
business or the economy generally. See "Management's Discussion and Analysis of
Financial Condition and Results of Operations--Liquidity and Capital Resources."
    
 
EFFECTS OF CHANGING PRODUCT PRICES
 
     The Company's profitability is determined in large part by the difference
between the prices received for the oil and natural gas that it produces and the
costs of finding and producing such resources. Prices for oil and gas have been
subject to wide fluctuations, which continue to reflect imbalances in supply and
demand as well as other market conditions and the world political situation as
it affects OPEC, the Middle East (including the current embargo of Iraqi crude
oil from worldwide markets) and other producing countries. Moreover, the price
of oil and natural gas may be affected by the price and availability of
alternative sources of energy, weather conditions and the general state of the
economy. Even relatively modest changes in oil and gas prices may significantly
change the Company's revenues, results of operations, cash flows and proved
reserves. Since the Company is primarily an oil producer, a change in the price
paid for its oil production more significantly affects its results of operations
than a change in natural gas prices. For example, the Company estimates that a
change of $1.00 per barrel in its average realized oil price would have resulted
in a change of $21.6 million in its 1993 operating income and $16.2 million in
its 1993 cash flow from operating activities, based on its 1993 operating
results. The foregoing estimates do not give effect to changes in any other
factors, such as the effect of the Company's hedging program or depreciation and
depletion, that would result from a change in oil prices. In recent months, spot
oil prices have reached their lowest levels in over five years, and no assurance
can be given that oil prices will not remain at these levels for the foreseeable
future or decline further.
 
     The Company's cash flow from operating activities is a function of the
volumes of oil and gas produced from the Company's properties and the sales
prices realized therefor. Crude oil and natural gas are depleting assets.
Therefore, unless the Company replaces over the long term the oil and natural
gas produced from the Company's properties, the Company's assets will be
depleted over time and its ability to service and incur debt at constant or
declining prices will be reduced. The Company's cash flow from operations for
1993 reflects an average sales price (unhedged) for the Company's 1993 oil
production of $12.93 per barrel. For the three months ended March 31, 1994, the
average sales price (unhedged) for the Company's 1994 oil production was $10.00
per barrel. If such lower oil prices prevail throughout
 
                                       11
<PAGE>   14
 
1994, the Company's cash flow from operating activities for 1994 will be
significantly lower than that for 1993.
 
EFFECTS OF HEAVY OIL PRODUCTION
 
     A substantial portion of the Company's oil production consists of heavy oil
produced from the Midway-Sunset Field. The market for such heavy crude oil
production differs substantially from the remainder of the domestic crude oil
market, due principally to the higher transportation and refining costs
associated with heavy crude. As a result, the profit margin realized from the
sale of heavy oil is generally lower than that realized from the sale of light
oil, because the costs to produce heavy oil are generally higher, and the price
paid for heavy crude oil is generally lower, than the price paid for light
crudes. Furthermore, there is currently an oversupply of crude oil in the
California market that has had an adverse effect on the prices paid for crude
oil in that market. See "Business and Properties--Current Markets for Oil and
Gas."
 
POSSIBLE IMPAIRMENT OF OIL AND GAS PROPERTIES
 
     The Company follows the successful efforts method of accounting for its oil
and gas exploration and production activities. Under this method, costs (both
tangible and intangible) of productive wells and development dry holes, as well
as the costs of prospective acreage, are capitalized. The costs of drilling and
equipping exploratory wells which do not result in proved reserves are expensed
upon the determination that the well does not justify commercial development.
Other exploratory costs, including geological and geophysical costs and delay
rentals, are charged to expense as incurred.
 
     The Company periodically reviews individual proved properties to determine
if the carrying value of the field as reflected in its accounting records
exceeds the estimated undiscounted future net revenues from proved oil and gas
reserves attributable to the field. Based on this review and the continuing
evaluation of development plans, economics and other factors, if appropriate,
the Company records impairments (additional depletion and depreciation) to the
extent that the carrying value exceeds the estimated undiscounted future net
revenues. Such impairments constitute a charge to earnings which does not impact
the Company's cash flow from operating activities. However, such writedowns
impact the amount of the Company's stockholders' equity and, therefore, the
ratio of debt-to-equity. The risk that the Company will be required to write
down the carrying value of its oil and natural gas properties increases when oil
and natural gas prices are depressed. In 1993, the Company recorded impairments
of $99.3 million. No assurance can be given that the Company will not experience
additional impairments in the future.
 
SUBORDINATION OF DEBENTURES
 
     The Indenture pursuant to which the Debentures will be issued (the
"Indenture") will limit, but not prohibit, the Incurrence by the Company of
additional Indebtedness, including Indebtedness that is senior in right of
payment to the Debentures (including by reason of structural subordination to
liabilities of the Company's subsidiaries). In the event of bankruptcy,
liquidation, reorganization or other winding up of the Company, the assets of
the Company will be available to pay the Company's obligations on the Debentures
offered hereby only after all Senior Indebtedness has been paid in full, and
there may not be sufficient assets remaining to pay amounts due on the
Debentures. In addition, under certain circumstances, no payments may be made
with respect to principal of, premium, if any, or interest on the Debentures if
a default exists with respect to any Senior Indebtedness. See "Description of
the Debentures--Subordination."
 
FUNDING OF CHANGE OF CONTROL OFFER
 
     In the event of a Change of Control (as defined) and a subsequent Rating
Decline (as defined), the Company will be required, subject to certain
conditions, to offer to purchase all outstanding Debentures at a price equal to
101 percent of the principal amount of the Debentures, plus accrued and unpaid
 
                                       12
<PAGE>   15
 
   
interest. Certain Senior Indebtedness also includes, and future Indebtedness of
the Company may include, change of control provisions pursuant to which the
Company would be required to offer to repurchase, or the lender could demand
repayment of, upon a change in control of the Company (as defined thereunder),
the Indebtedness due thereunder. Upon such an occurrence, redemption or
repayment of Senior Indebtedness would be required to be made before the offer
to repurchase Debentures could be consummated. As a result, no assurance can be
given that the Company would have available sufficient funds to repurchase
Debentures that may be tendered for repurchase upon a Change of Control and a
subsequent Rating Decline. As of March 31, 1994, after giving effect to this
Offering and the Concurrent DECS Offering and the application of the net
proceeds therefrom as described in "Use of Proceeds," the Company would not have
sufficient funds available to purchase all of the outstanding Debentures were
they to be tendered in response to an offer made as a result of a Change of
Control and a subsequent Rating Decline. See "Description of the
Debentures--Mandatory Repurchase upon Change of Control and Subsequent Rating
Decline."
    
 
   
GOVERNMENTAL AND ENVIRONMENTAL REGULATION
    
 
     The Company's activities are subject to various federal, state and local
laws and regulations covering the discharge of material into the environment or
otherwise relating to protection of the environment. In particular, the
Company's oil and gas exploration, development, production and EOR operations,
its activities in connection with storage and transportation of liquid
hydrocarbons and its use of facilities for treating, processing, recovering or
otherwise handling hydrocarbons and waste therefrom are subject to stringent
environmental regulation by governmental authorities. Such regulations have
increased the costs of planning, designing, drilling, installing, operating and
abandoning the Company's oil and gas wells and other facilities.
 
     The Company has expended significant resources, both financial and
managerial, to comply with environmental regulations and permitting requirements
and anticipates that it will continue to do so in the future. Although the
Company believes that its operations and facilities are in general compliance
with applicable environmental regulations, risks of substantial costs and
liabilities are inherent in oil and gas operations, and there can be no
assurance that significant costs and liabilities will not be incurred in the
future. Moreover, it is possible that other developments, such as increasingly
strict environmental laws, regulations and enforcement policies thereunder, and
claims for damages to property, employees, other persons and the environment
resulting from the Company's operations, could result in substantial costs and
liabilities in the future. See "Business and Properties--Other Business
Matters--Environmental Regulation."
 
UNCERTAINTIES IN ESTIMATES OF PROVED RESERVES
 
     Proved reserves of crude oil and natural gas are estimated quantities that
geological and engineering data demonstrate with reasonable certainty to be
economically producible under existing conditions. There are numerous
uncertainties inherent in estimating quantities of proved reserves and in
projecting future rates of production and timing of development expenditures.
All reserve estimates are to some degree speculative and various classifications
of reserves only constitute attempts to define the degree of speculation
involved. The accuracy of any reserve estimate is a function of the quality of
available data and engineering and geological interpretation and judgment and
the assumptions used regarding prices for crude oil, natural gas liquids and
natural gas. Results of drilling, testing and production and changes in crude
oil, natural gas liquids and natural gas prices after the date of the estimate
may require substantial upward or downward revisions. Although a substantial
portion of the Company's proved oil reserves is in long-lived fields with
well-established production histories where EOR and other development projects
are employed to produce such reserves, the external factors discussed above will
directly affect the Company's determination to proceed with any of such projects
and, therefore, the quantity of reserves in these fields classified as proved.
The reserve estimates included and incorporated by reference in this Prospectus
were prepared as of December 31, 1993 and could be materially different from the
quantities of crude oil, natural gas liquids and natural gas that ultimately
will be recovered from the Company's properties.
 
                                       13
<PAGE>   16
 
     In addition, actual future net cash flows from production of the Company's
reserves will be affected by factors such as actual production, supply and
demand for oil and natural gas, curtailments or increases in consumption by
natural gas purchasers, changes in governmental regulations or taxation and the
impact of inflation on costs. The timing of actual future net revenue from
proved reserves, and thus their actual present value, can be affected by the
timing of the incurrence of expenditures in connection with development of oil
and gas properties. The 10% discount factor, which is required by the Commission
to be used to calculate present value for reporting purposes, is not necessarily
the most appropriate discount factor based on interest rates in effect from time
to time and risks associated with the oil and gas industry. Discounted present
value, no matter what discount rate is used, is materially affected by
assumptions as to the amount and timing of future production, which may and
often do prove to be inaccurate.
 
INDUSTRY CONSIDERATIONS
 
     The Company's business is the exploration for, and the development and
production of, oil and natural gas. Exploration for oil and natural gas involves
many risks, which even a combination of experience, knowledge and careful
evaluation may not be able to overcome. In addition, there is strong competition
relating to all aspects of the oil and gas industry, and in particular in the
exploration and development of new oil and gas reserves. The Company must
compete with a substantial number of other oil and natural gas companies, many
of which have significantly greater financial resources.
 
     All of the Company's oil and gas activities are subject to the risks
normally incident to exploration for and production of oil and gas, including
blowouts, cratering, spillage and fires, each of which could result in damage to
life and property. Offshore operations are subject to usual marine perils,
including hurricanes and other adverse weather conditions, and governmental
regulations as well as interruption or termination by governmental authorities
based on environmental and other considerations. In accordance with customary
industry practices, the Company carries insurance against some, but not all, of
the risks associated with the Company's business. Losses and liabilities arising
from such events would reduce revenues and increase costs to the Company to the
extent not covered by insurance.
 
     Another risk inherent in the oil and gas industry is the risk that a well
will be a dry hole or a marginal producer that will not, in either case, repay
the entire cost of drilling, testing, completing and equipping the well. There
can be no assurance, therefore, that the Company's future exploration and
development wells will be financially successful.
 
INTERNATIONAL OPERATIONS
 
     Foreign properties, operations or investment may be adversely affected by
local political and economic developments, exchange controls, currency
fluctuations, royalty and tax increases, retroactive tax claims, expropriation,
import and export regulations and other foreign laws or policies as well as by
laws and policies of the United States affecting foreign trade, taxation and
investment. In addition, in the event of a dispute arising from foreign
operations, the Company may be subject to the exclusive jurisdiction of foreign
courts or may not be successful in subjecting foreign persons to the
jurisdiction of courts in the United States. The Company may also be hindered or
prevented from enforcing its rights with respect to a governmental
instrumentality because of the doctrine of sovereign immunity.
 
ABSENCE OF A PREVIOUS MARKET FOR THE DEBENTURES
 
     The Debentures are a new issue of securities with no established trading
market and the Company does not intend to apply for listing of the Debentures on
any securities exchange. The Company has been advised by the Underwriters that,
subject to applicable laws and regulations, each of them currently intends to
make a market in the Debentures; however, they are not obligated to do so and
may discontinue any such market making at any time without notice. No assurance
can be given as to the development or liquidity of any trading market in the
Debentures. If an active market does not develop, the market price and liquidity
of the Debentures may be adversely affected.
 
                                       14
<PAGE>   17
 
                      RATIOS OF EARNINGS TO FIXED CHARGES
 
     The following table sets forth the historical ratios of earnings to fixed
charges and earnings to combined fixed charges and preferred stock dividends of
the Company for the periods indicated:
 
   
<TABLE>
<CAPTION>
                                         THREE MONTHS
                                            ENDED
                                          MARCH 31,                   YEAR ENDED DECEMBER 31,
                                        --------------      --------------------------------------------
                                        1994      1993      1993      1992      1991      1990      1989
                                        ----      ----      ----      ----      ----      ----      ----
<S>                                     <C>       <C>       <C>       <C>       <C>       <C>       <C>
Earnings to Fixed Charges............    (a )      (a )      (a )      (a )     1.5 x     1.3 x     2.2 x
Earnings to Combined Fixed Charges
  and Preferred Stock Dividends......    (b )      (b )      (b )      (b )     1.5 x     1.3 x     2.2 x
</TABLE>
    
 
- ---------------
 
   
(a) Earnings during the three months ended March 31, 1994 and 1993 and the years
     1993 and 1992 were insufficient to cover fixed charges (excluding dividends
     on preferred stock) by $9.2 million, $0.7 million, $154.5 million and $5.8
     million, respectively.
    
 
   
(b) Earnings during the three months ended March 31, 1994 and 1993 and the years
     1993 and 1992 were insufficient to cover combined fixed charges and
     preferred stock dividends by $12.2 million, $3.7 million, $166.0 million
     and $12.8 million, respectively.
    
 
                                USE OF PROCEEDS
 
   
     The net proceeds to the Company from the sale of the Debentures offered
hereby are estimated to be approximately $97.0 million. Such net proceeds will
be used to prepay $65.0 million principal amount of the Company's Senior Notes
with scheduled maturities in 1995 (Series C, $30.0 million) and 1996 (Series D,
$35.0 million), together with prepayment penalties aggregating approximately
$6.1 million. The Series C Notes bear interest at 10.04% per year and the Series
D Notes bear interest at 10.14% per year. The remaining net proceeds from this
Offering and the net proceeds from the Concurrent DECS Offering (estimated to be
approximately $91.6 million) will be used (i) to repay the floating rate debt
borrowed under the Company's Amended and Restated Revolving Credit Agreement
("Bank Facility"), the balance of which was $30.0 million at May 11, 1994 and
which currently bears interest at 5.5% per year; (ii) to repay approximately
$30.0 million principal amount of debt previously incurred by Santa Fe Energy
Operating Partners, L.P., (plus a prepayment penalty equal to approximately $2.5
million) with a current interest rate of 8.3% per year, $6.0 million of which
matures in 1994 and $8.0 million of which is scheduled to mature during each of
the succeeding three years; (iii) to repay approximately $12.3 million principal
amount of debt of Mission Resources, Inc. assumed by the Company in connection
with a property acquisition, with a current interest rate of 9.0% and a
scheduled maturity in 1995; and (iv) for working capital purposes.
    
 
     After the application of the net proceeds from the Offering and the
Concurrent DECS Offering, the Company will have approximately $245.0 million
principal amount of Senior Notes outstanding, none of which matures before 1996.
 
                                       15
<PAGE>   18
 
                                 CAPITALIZATION
 
   
     The following table sets forth the Company's consolidated capitalization at
March 31, 1994 on a historical basis and as adjusted as indicated below. See
"Use of Proceeds."
    
 
   
<TABLE>
<CAPTION>
                                                                       MARCH 31, 1994
                                                          ----------------------------------------
                                                                               AS ADJUSTED
                                                                        --------------------------
                                                                                        DEBENTURES
                                                                        DEBENTURES         AND
                                                           ACTUAL        ONLY(A)         DECS(B)
                                                          --------      ----------      ----------
                                                                      (IN MILLIONS)
<S>                                                       <C>           <C>             <C>
SHORT-TERM DEBT:
  Current portion of long-term debt..................     $   42.9       $   12.9        $    3.7
                                                          --------      ----------      ----------
                                                          --------      ----------      ----------
LONG-TERM DEBT:
  Senior notes.......................................        280.0          245.0           245.0
  Revolving and term credit agreement................         79.0           53.1             6.3
  Notes payable to bank..............................         11.4           11.4            11.4
  Term loan..........................................         11.1           11.1              --
  Partnership credit agreement.......................         22.0           22.0              --
  Senior subordinated debentures.....................           --          100.0           100.0
                                                          --------      ----------      ----------
     Total long-term debt............................        403.5          442.6           362.7
                                                          --------      ----------      ----------
CONVERTIBLE PREFERRED STOCK, SERIES 7%:..............         80.0           80.0            80.0
                                                          --------      ----------      ----------
SHAREHOLDERS' EQUITY:
  DECS...............................................           --             --            91.6
  Common stock.......................................          0.9            0.9             0.9
  Paid-in capital....................................        498.3          498.3           498.3
  Accumulated deficit................................       (178.1)        (178.4)         (178.5)
  Other..............................................         (0.4)          (0.4)           (0.4)
                                                          --------      ----------      ----------
     Total shareholders' equity......................        320.7          320.4           411.9
                                                          --------      ----------      ----------
  Total capitalization...............................     $  804.2       $  843.0        $  854.6
                                                          --------      ----------      ----------
                                                          --------      ----------      ----------
</TABLE>
    
 
- ---------------
 
   
(a) Pro forma for the issuance of the Debentures only. Net proceeds from the
     Offering will be applied to prepay $65.0 million of the Senior Notes, fund
     $6.1 million of prepayment penalties and repay approximately $25.9 million
     of floating rate debt borrowed under the Bank Facility. If the Concurrent
     DECS Offering is not consummated, approximately $89.1 million of additional
     Senior Indebtedness and subsidiary debt will remain outstanding.
    
 
(b) Pro forma for the issuance of both the Debentures and the DECS and the
     application of the net proceeds therefrom (estimated to be $188.6 million)
     as described in "Use of Proceeds." Assumes 10,700,000 DECS are sold at a
     price of $8 7/8 per share.
 
                                       16
<PAGE>   19
 
                     SELECTED FINANCIAL AND OPERATING DATA
 
   
     The following data for the years ended December 31, 1989, 1990, 1991, 1992
and 1993 has been derived from the Company's consolidated financial statements
audited by Price Waterhouse, independent accountants. This selected historical
financial data should be read in conjunction with the consolidated financial
statements of the Company, including the notes thereto. The Company's
consolidated balance sheets at December 31, 1992 and 1993 and the related
consolidated statements of operations, of cash flows and of shareholders' equity
for the three years ended December 31, 1993 are included elsewhere in this
Prospectus. The data for the three months ended March 31, 1993 and 1994 has been
derived from the unaudited financial statements also appearing herein and which,
in the opinion of management, include all adjustments, consisting only of normal
recurring adjustments, necessary for a fair statement of the results for the
unaudited interim periods.
    
 
   
<TABLE>
<CAPTION>
                                                 THREE MONTHS
                                                ENDED MARCH 31,                         YEAR ENDED DECEMBER 31,
                                             ---------------------     ---------------------------------------------------------
                                               1994         1993         1993       1992(A)       1991        1990        1989
                                             --------     --------     --------     --------     -------     -------     -------
                                                                        (IN MILLIONS, EXCEPT AS NOTED)
<S>                                          <C>          <C>          <C>          <C>          <C>         <C>         <C>
INCOME STATEMENT DATA:
  Revenues...............................    $   90.3     $  115.3     $  436.9     $  427.5     $ 379.8     $ 382.9     $ 322.9
                                             --------     --------     --------     --------     -------     -------     -------
  Operating expenses
    Production and operating.............        40.6         42.7        163.8        153.4       134.6       135.5       107.1
    Oil and gas systems and pipelines....          --          1.1          4.2          3.2          --          --          --
    Exploration, including dry hole
      costs..............................         5.0          7.1         31.0         25.5        18.7        21.0        19.4
    Depletion, depreciation and
      amortization.......................        32.1         37.6        152.7        146.3       106.6       105.2        99.4
    Impairment of oil and gas
      properties(b)......................          --           --         99.3           --          --         1.4         1.1
    General and administrative...........         7.6          7.0         32.3         30.9        27.8        25.6        28.6
    Taxes (other than income)............         7.4          7.1         27.3         24.3        27.2        22.0        22.3
    Restructuring charges(c).............         7.0           --         38.6           --          --          --          --
    Loss (gain) on disposition of oil and
      gas properties.....................        (9.4)         0.7          0.7        (13.6)        0.5         2.8        (0.5)
                                             --------     --------     --------     --------     -------     -------     -------
  Total operating expenses...............        90.3        103.3        549.9        370.0       315.4       313.5       277.4
                                             --------     --------     --------     --------     -------     -------     -------
  Operating income (loss)................          --         12.0       (113.0)        57.5        64.4        69.4        45.5
  Other income (expense).................         0.9         (0.2)        (4.8)       (10.0)        5.6        (0.3)       18.2
  Interest income........................         0.2          1.2          9.1          2.3         2.3         5.2         4.3
  Interest expense.......................       (10.3)       (13.7)       (45.8)       (55.6)      (47.3)      (57.1)      (30.5)
  Interest capitalized...................         0.9          1.1          4.3          4.9         7.7        10.6        13.8
                                             --------     --------     --------     --------     -------     -------     -------
  Income (loss) before income taxes and
    cumulative effect of accounting
    change...............................        (8.3)         0.4       (150.2)        (0.9)       32.7        27.8        51.3
  Income taxes benefit (expense).........         5.8         (0.8)        73.1         (0.5)      (14.2)      (10.8)      (26.0)
                                             --------     --------     --------     --------     -------     -------     -------
  Income (loss) before cumulative effect
    of accounting change.................        (2.5)        (0.4)       (77.1)        (1.4)       18.5        17.0        25.3
  Cumulative effect of accounting
    change...............................          --           --           --           --          --          --        24.5
                                             --------     --------     --------     --------     -------     -------     -------
  Net income (loss)......................        (2.5)        (0.4)       (77.1)        (1.4)       18.5        17.0        49.8
  Preferred dividend requirement.........        (1.8)        (1.8)        (7.0)        (4.3)         --          --          --
                                             --------     --------     --------     --------     -------     -------     -------
  Earnings (loss) attributable to Common
    Stock................................    $   (4.3)    $   (2.2)    $  (84.1)    $   (5.7)    $  18.5     $  17.0     $  49.8
                                             --------     --------     --------     --------     -------     -------     -------
                                             --------     --------     --------     --------     -------     -------     -------
  Per share data (in dollars):
    Income (loss) before cumulative
      effect of accounting change........    $  (0.05)    $  (0.02)    $  (0.94)    $  (0.07)    $  0.29     $  0.28     $  0.48
    Cumulative effect of change in
      accounting for income taxes........          --           --           --           --          --          --        0.47
  Earnings (loss) to Common Stock........       (0.05)       (0.02)       (0.94)       (0.07)       0.29        0.28        0.95
  Weighted average number of shares
    outstanding..........................        89.9         89.6         89.7         79.0        63.8        61.7        52.1
STATEMENT OF CASH FLOW DATA:
  Net cash provided by operating
    activities...........................    $   14.3     $   41.6     $  160.2     $  141.5     $ 128.4     $ 144.1     $ 173.1
  Net cash used in investing
    activities...........................        10.8         27.8        121.4         15.9       117.2       108.2        86.8
</TABLE>
    
 
                                             (Table continued on following page)
 
                                       17
<PAGE>   20
 
   
<TABLE>
<CAPTION>
                                                 THREE MONTHS
                                                ENDED MARCH 31,                         YEAR ENDED DECEMBER 31,
                                             ---------------------     ---------------------------------------------------------
                                               1994         1993         1993       1992(A)       1991        1990        1989
                                             --------     --------     --------     --------     -------     -------     -------
                                                                       (IN MILLIONS, EXCEPT AS NOTED)
<S>                                          <C>          <C>          <C>          <C>          <C>         <C>         <C>
BALANCE SHEET DATA (AT PERIOD END):
  Properties and equipment, net..........    $  818.2     $1,076.5     $  832.7     $1,101.8     $ 797.4     $ 745.0     $ 747.6
  Total assets...........................     1,042.2      1,278.9      1,076.9      1,337.2       911.9       911.1       881.8
  Long-term debt.........................       403.5        459.0        405.4        492.8       440.8       417.2       124.7
  Convertible Preferred Stock, Series
    7%...................................        80.0         80.0         80.0         80.0          --          --          --
  Shareholders' equity...................       320.7        412.8        323.6        416.6       225.1       215.8       228.1
SELECTED OPERATING DATA:
  Daily average production(d):
    Crude oil and liquids (MBbls/day)
      Domestic...........................        58.0         61.0         60.2         58.3        54.9        52.0        50.7
      Argentina..........................         2.5          2.0          2.4          2.4         0.6          --          --
      Indonesia..........................         5.5          4.3          4.1          1.8          --          --          --
                                             --------     --------     --------     --------     -------     -------     -------
                                                 66.0         67.3         66.7         62.5        55.5        52.0        50.7
                                             --------     --------     --------     --------     -------     -------     -------
                                             --------     --------     --------     --------     -------     -------     -------
    Natural gas (MMcf/day)...............       155.5        177.8        165.4        126.3        95.2       102.5        81.6
    Total production (MMBOE).............        91.9         96.9         94.3         83.6        71.4        69.1        64.3
  Average sales prices:
    Crude oil and liquids ($/Bbl)
      Unhedged
        Domestic.........................    $   9.64     $  13.49     $  12.70     $  14.38     $ 14.07     $ 17.90     $ 14.11
        Argentina........................       10.27        15.45        14.07        15.99       16.24          --          --
        Indonesia........................       13.74        16.25        15.50        17.51          --          --          --
        Total............................       10.00        13.73        12.93        14.54       14.09       17.90       14.11
      Hedged.............................       10.00        13.73        12.93        14.96       16.16       17.34       14.11
    Natural Gas ($/Mcf)
      Unhedged...........................    $   2.10     $   1.96     $   2.03     $   1.71     $  1.49     $  1.57     $  1.72
      Hedged.............................        2.07         1.91         1.89         1.70        1.49        1.57        1.72
  Proved reserves at year end(e):
    Crude oil, condensate and natural gas
      liquids (MMBbls)...................                                 248.2        255.1       229.2       222.3       219.8
    Natural gas (Bcf)....................                                 263.0        277.5       170.8       185.9       188.0
    Proved reserves (MMBOE)..............                                 292.0        301.5       257.7       253.3       251.1
    Proved developed reserves (MMBOE)....                                 225.5        248.4       210.3       205.0       204.0
  Production costs (including related
    production, severance and ad valorem
    taxes) per BOE (in dollars)..........    $   5.59     $   5.53     $   5.39     $   5.66     $  6.06     $  6.22     $  5.69
</TABLE>
    
 
- ---------------
 
(a) On May 19, 1992, Adobe was merged with and into the Company.
 
(b) Reflects a non-cash charge of $99.3 million for the impairment of oil and
     gas properties recorded as of December 31, 1993. See "Management's
     Discussion and Analysis of Financial Condition and Results of Operations"
     and Note 1 of the Notes to the Company's Consolidated Financial Statements
     included elsewhere in this Prospectus.
 
   
(c) Includes losses on property dispositions of $27.8 million, long-term debt
     repayment penalties of $8.6 million and accruals of certain personnel
     benefits and related costs of $2.2 million in 1993 and $7.0 million of
     severance, benefits and relocation costs in 1994.
    
 
   
(d) Includes production attributable to the properties sold to Vintage (closed
     in November 1993) and Bridge (closed in April 1994). Production
     attributable to such properties during the year ended December 31, 1993
     totaled approximately 4.1 MBbls of oil per day and 21.7 MMcf of natural gas
     per day (7.7 MBOE per day). Production during the three months ended March
     31, 1993 attributable to the properties sold to Vintage totaled
     approximately 3.2 MBbls of oil per day and approximately 7.0 MMcf of
     natural gas per day (4.4 MBOE per day). Production during the three months
     ended March 31, 1993 and 1994 attributable to the properties sold to Bridge
     totaled approximately 1.4 MBbls of oil per day and approximately 14.6 MMcf
     of natural gas per day (3.8 MBOE per day), and approximately 1.3 MBbls of
     oil per day and approximately 13.5 MMcf of natural gas per day (3.6 MBOE
     per day), respectively.
    
 
(e) The estimates set forth in this table for 1993 give effect to the sale by
     the Company of approximately 8.0 MMBOE of proved reserves to Bridge, which
     sale closed in April 1994.
 
                                       18
<PAGE>   21
 
                    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
GENERAL
 
     As an independent oil and gas producer, the Company's results of operations
are dependent upon the difference between the prices received for oil and gas
and the costs of finding and producing such resources. A substantial portion of
the Company's crude oil production is from long-lived fields where EOR methods
are being utilized. The market price of the heavy (i.e., low gravity, high
viscosity) and sour (i.e., high sulfur content) crude oils produced in these
fields is lower than sweeter, light (i.e., low sulfur and low viscosity) crude
oils, reflecting higher transportation and refining costs. The lower price
received for the Company's domestic heavy and sour crude oil is reflected in the
average sales price of the Company's domestic crude oil and liquids (excluding
the effect of hedging transactions) for 1993 of $12.70 per barrel, compared to
$16.94 per barrel for West Texas Intermediate ("WTI") crude oil (an industry
posted price generally indicative of spot prices for sweeter light crude oil).
In addition, the lifting costs of heavy crude oils are generally higher than the
lifting costs of light crude oils. As a result of these narrower margins, even
relatively modest changes in crude oil prices may significantly affect the
Company's revenues, results of operations, cash flows and proved reserves. In
addition, prolonged periods of high or low oil prices may have a material effect
on the Company's financial position.
 
     Crude oil prices are subject to significant changes in response to
fluctuations in the domestic and world supply and demand and other market
conditions as well as the world political situation as it affects OPEC, the
Middle East and other producing countries. See "Business and Properties--Current
Markets for Oil and Gas." The period since mid-1990 has included some of the
largest fluctuations in oil prices in recent times, primarily due to the
political unrest in the Middle East. The actual average sales price (unhedged)
received by the Company ranged from a high of $23.92 per barrel in the fourth
quarter of 1990 to a low of $10.00 per barrel during the three months ended
March 31, 1994. The Company's average sales price for its 1993 oil production
was $12.93 per barrel. Based on operating results of 1993, the Company estimates
that a $1.00 per barrel increase or decrease in average oil sales prices would
have resulted in a corresponding $21.6 million change in 1993 income from
operations and a $16.2 million change in 1993 cash flow from operating
activities. The Company also estimates that a $0.10 per Mcf increase or decrease
in average natural gas sales prices would have resulted in a corresponding $5.8
million change in 1993 income from operations and a $4.4 million change in 1993
cash flow from operating activities. The foregoing estimates do not give effect
to changes in any other factors, such as the effect of the Company's hedging
program or depreciation and depletion, that would result from a change in oil
and natural gas prices.
 
     During 1992 and 1993, certain significant events occurred which affect the
comparability of prior periods, including the merger of Adobe with and into the
Company in May 1992, the formation of the Santa Fe Energy Trust (the "Trust") in
November 1992 and implementation of the corporate restructuring program adopted
in October 1993. The corporate restructuring program includes (i) the
concentration of capital spending in the Company's core operating areas, (ii)
the disposition of non-core assets, (iii) the elimination of the $0.04 per share
quarterly Common Stock dividend and (iv) the recognition of $38.6 million of
restructuring charges. See Note 2 of the Notes to the Company's Consolidated
Financial Statements included elsewhere in this Prospectus and "Business and
Properties--Corporate Restructuring Program." In addition, the Company's results
of operations for 1993 include a charge of $99.3 million for the impairment of
oil and gas properties.
 
     The Company's capital program will be concentrated in three domestic core
areas--the Permian Basin in Texas and New Mexico, the offshore Gulf of Mexico
and the San Joaquin Valley of California--as well as its productive areas in
Argentina and Indonesia. The domestic program includes development activities in
the Delaware and Cisco-Canyon formations in west Texas and southeast New Mexico,
a development drilling program for the offshore Gulf of Mexico natural gas
properties and relatively low risk infill drilling in the San Joaquin Valley of
California. Internationally, the program includes development of the Company's
Sierra Chata discovery in Argentina with gas sales expected to commence in early
1995
 
                                       19
<PAGE>   22
 
and the Salawati Basin Joint Venture in Indonesia. See "Business and
Properties--Domestic Development Activities" and "--International Development
Activities."
 
     The Company's non-core asset disposition program includes the sale of its
natural gas gathering and processing assets to Hadson Corporation ("Hadson")
(completed in December 1993), the sale to Vintage of certain southern California
and Gulf Coast oil and gas producing properties (completed in November 1993) and
the sale to Bridge of certain Mid-Continent and Rocky Mountain oil and gas
producing properties and undeveloped acreage (completed in April 1994). See
"Business and Properties--Corporate Restructuring Program" for a description of
the transactions with Hadson, Vintage and Bridge. In the first quarter of 1994,
the Company sold the remaining 575,000 Depositary Units which it held in the
Trust for $11.3 million and its interest in certain other oil and gas properties
for $8.3 million. As a result of the Vintage and Bridge dispositions described
above, the Company has sold properties having combined production during 1993 of
4.1 MBbls of oil per day and 21.7 MMcf of natural gas per day and estimated
proved reserves of approximately 16.7 MMBOE.
 
   
     The restructuring program also includes an evaluation of the Company's
capital and cost structures to examine ways to increase flexibility and
strengthen the Company's financial performance. Based upon the review of its
capital structure, the Company determined to proceed with the Refinancing to
accomplish its financial strategy. Based upon the review of its cost structure,
the Company has implemented a cost reduction program that includes the reduction
of its salaried work force by approximately 20%, an improvement in the
efficiency of its information systems and reductions in other general and
administrative costs. These measures, together with the Company's on-going
efforts to reduce production costs and the recent sales of its higher cost,
non-core properties, are designed to reduce costs and expenses by approximately
$30.0 million from the 1993 level (which reduction includes approximately $5.0
million of non-recurring costs). Approximately $10.0 million of the estimated
cost reduction is expected to be in production and operating costs.
Substantially all of this cost reduction program is expected to be implemented
by year end 1994. During the quarter ended March 31, 1994, the Company recorded
$7.0 million in restructuring charges reflecting the estimated costs of such
cost reduction program. See "--Liquidity and Capital Resources."
    
 
     In May 1992, Adobe, an oil and gas exploration and production company, was
merged with and into the Company (the "Adobe Merger"). The acquisition was
accounted for as a purchase and the results of operations of the properties
acquired (the "Adobe Properties") are included in the Company's results of
operations effective June 1, 1992. Pursuant to the Adobe Merger, the Company
issued 25,020,117 shares of Common Stock and 5,000,000 shares of its Convertible
Preferred Stock, Series 7%, and assumed approximately $175.0 million of
long-term debt and other liabilities. Pursuant to the Adobe Merger, the Company
also acquired Adobe's proved reserves and inventory of undeveloped acreage. As
of December 31, 1991, Adobe's estimated proved reserves totaled approximately
53.2 MMBOE (net of 6.9 MMBOE attributable to Adobe's ownership in certain gas
plants), of which approximately 58% was natural gas (approximately 66% of
Adobe's estimated domestic proved reserves were natural gas). Approximately 72%
of the discounted future net cash flow of Adobe's estimated domestic proved
reserves was concentrated in three areas of operation--offshore Gulf of Mexico,
onshore Louisiana and in the Spraberry Trend in west Texas. In addition, Adobe's
international operations consisted of certain production sharing arrangements in
Indonesia, in respect of which approximately 6.0 MMBOE of estimated proved
reserves had been attributed to Adobe's interest as of December 31, 1991. The
location of the Adobe Properties enhanced the Company's existing domestic
operations and added significant operations to the Company's international
program.
 
     In November 1992, 5,725,000 Depositary Units ("Depositary Units")
consisting of interests in the Trust were sold in a public offering. After
payment of certain costs and expenses, the Company received net proceeds of
$70.1 million and 575,000 Depositary Units. For any calendar quarter ending on
or prior to December 31, 2002, the Trust will receive additional royalty
payments to the extent necessary to distribute $0.40 per Depositary Unit per
quarter. The source of such payments, if needed, will be limited to the
Company's remaining royalty interest in certain of the properties conveyed to
the Trust. The aggregate amount of such payments are limited to $20.0 million on
a revolving basis. The Company was
 
                                       20
<PAGE>   23
 
required to make an additional royalty payment of $362,000 with respect to the
distribution made by the Trust for operations during the quarter ended December
31, 1993. On April 21, 1994, the Trust announced that a distribution of $0.40
per Depositary Unit would be paid for the calendar quarter ended March 31, 1994
to Unitholders of record on May 16, 1994, which distribution will include an
additional royalty payment by the Company of $505,700. See "Business and
Properties--Santa Fe Energy Trust."
 
   
RESULTS OF OPERATIONS
    
 
   
     The following table sets forth, on the basis of the BOE produced by the
Company during the applicable period, certain of the Company's costs and
expenses for each of the periods indicated.
    
 
   
<TABLE>
<CAPTION>
                                                        THREE MONTHS
                                                            ENDED
                                                          MARCH 31,           YEAR ENDED DECEMBER 31,
                                                      -----------------     ----------------------------
                                                       1994       1993       1993       1992       1991
                                                      ------     ------     ------     ------     ------
<S>                                                   <C>        <C>        <C>        <C>        <C>
  Production and operating costs per BOE (a).......   $ 4.91     $ 4.90     $ 4.76     $ 5.02     $ 5.17
  Exploration, including dry hole costs per BOE....     0.61       0.82       0.90       0.84       0.72
  Depletion, depreciation and amortization per
     BOE...........................................     3.88       4.31       4.44       4.79       4.09
  General and administrative costs per BOE.........     0.92       0.80       0.94       1.01       1.07
  Taxes other than income per BOE (b)..............     0.90       0.82       0.79       0.80       1.05
  Interest, net, per BOE (c).......................     1.11       1.31       0.94       1.58       1.43
</TABLE>
    
 
- ---------------
 
(a) Excluding related production, severance and ad valorem taxes.
 
(b) Includes production, severance and ad valorem taxes.
 
(c) Reflects interest expense less amounts capitalized and interest income.
 
   
     First Quarter 1994 Compared with First Quarter 1993
    
 
   
     Total revenues declined 22% from $115.3 million in the first quarter of
1993 to $90.3 million in the first quarter of 1994 primarily due to lower oil
prices in 1994. The average price realized per barrel of oil in 1994 was $10.00,
a 27% decrease from the $13.73 realized in 1993. Daily average oil production
decreased 1.3 MBbls per day during the first quarter of 1994 primarily
reflecting the sale to Vintage in the fourth quarter of 1993 of properties which
produced approximately 3.2 MBbls per day, partially offset by increased
production in Indonesia and Argentina. Natural gas production declined to an
average of 155.5 MMcf per day in the first quarter of 1994 compared to 177.8
MMcf per day in the first quarter of 1993. However, production for the 1993
period included a positive adjustment of approximately 16.7 MMcf per day related
to production in prior periods from certain nonoperated properties. In addition,
the 1993 volumes include approximately 7.0 MMcf per day attributable to the
properties sold to Vintage. Natural gas sales prices (hedged) for 1994 averaged
$2.07 per Mcf, approximately 8% higher than the $1.91 realized in 1993. Natural
gas revenues for 1994 and 1993 were reduced by $0.3 million ($0.03 per Mcf) and
$0.8 million ($0.05 per Mcf), respectively, by losses on hedging transactions.
    
 
   
     Total costs and expenses for the first quarter of 1994 of $90.3 million
were 13% lower than the $103.3 million reported for the first quarter of 1993.
Exploration expenses were down $2.1 million primarily reflecting lower
geological and geophysical costs with respect to foreign operations and lower
dry hole costs. Depletion, depreciation and amortization ("DD&A") decreased $5.5
million primarily reflecting the effect of property impairments taken in the
fourth quarter of 1993 and the sale of properties to Vintage. On a BOE basis,
DD&A decreased by 10% from $4.31 per barrel to $3.88 per barrel. Costs and
expenses for the first quarter of 1994 include $7.0 million in restructuring
charges (see "--Liquidity and Capital Resources") and a $9.4 million gain on the
sale of certain oil and gas properties.
    
 
   
     Interest expense for the first quarter of 1994 includes a credit of $2.4
million reflecting adjustments to provisions made in prior periods with respect
to interest on certain federal income tax audit adjustments. Other income
(expense) for the first quarter of 1994 includes $1.5 million in dividend
    
 
                                       21
<PAGE>   24
 
   
income on Hadson preferred stock (paid in-kind) and a $0.7 million loss on the
Company's equity in Hadson common stock. Income tax expense for the first
quarter of 1994 includes a $3.0 million benefit of adjustments to provisions
made in prior periods with respect to certain federal income tax audit
adjustments.
    
 
     1993 Compared with 1992
 
     Total revenues increased approximately 2% from $427.5 million in 1992 to
$436.9 million in 1993, principally due to an increase in oil and natural gas
production offset by a decline in average oil prices. Average daily oil
production increased 7% from 62.5 MBbls in 1992 to 66.7 MBbls in 1993,
principally due to increased domestic and Indonesian production. The average
price realized per barrel of oil during 1993 was $12.93, a decrease of 14%
versus the average price of $14.96 in 1992. Natural gas production increased 31%
from 126.3 MMcf per day in 1992 to 165.4 MMcf per day in 1993, primarily
reflecting the effect of a full year's production from the Adobe Properties.
Average natural gas prices realized increased approximately 11% from $1.70 per
Mcf in 1992 to $1.89 per Mcf in 1993.
 
     Production and operating costs increased $10.4 million in 1993, primarily
reflecting the effect of a full year's costs for the Adobe Properties; however,
on a BOE basis such costs declined from $5.02 per barrel in 1992 to $4.76 per
barrel in 1993. Exploration costs were $5.5 million higher than in 1992
primarily reflecting higher geological and geophysical costs and higher dry hole
costs. DD&A increased $6.4 million in 1993 primarily reflecting a full year's
expense on Adobe Properties partially offset by reduced amortization rates with
respect to certain unproved properties. DD&A for 1993 includes $12.1 million
with respect to the properties sold to Vintage and Bridge. On a BOE basis, DD&A
decreased by $0.35 per barrel, from $4.79 to $4.44 per barrel. General and
administrative costs increased $1.4 million principally due to a $1.8 million
charge related to the adoption of Statement of Financial Standards No.
112--"Employer's Accounting for Postemployment Benefits." Taxes (other than
income) increased by $3.0 million in 1993 primarily reflecting the effect of the
Adobe Properties.
 
     Costs and expenses for 1993 also include $99.3 million in impairments of
oil and gas properties and $38.6 million in restructuring charges. The Company
estimates that the impairments taken in 1993 will result in a $20.0 million
reduction in DD&A in 1994. The restructuring charges include losses on property
dispositions of $27.8 million, long-term debt repayment penalties of $8.6
million and accruals of certain personnel benefits and related costs of $2.2
million. In connection with the property dispositions effected during 1993 (see
"--Liquidity and Capital Resources"), the Company sold properties having
combined production during 1993 of 4.1 MBbls of oil per day and 21.7 MMcf of
natural gas per day and combined estimated proved reserves of approximately 16.7
MMBOE. The Company's income from operations for 1993 includes $8.5 million with
respect to such properties.
 
     Interest income in 1993 includes $6.8 million related to a $10 million
refund received as a result of the completion of the audit of the Company's
federal income tax returns for 1971 through 1980. The decrease in interest
expenses during 1993 reflects a decrease in the Company's debt outstanding and a
$5.7 million credit related to a revision to a tax sharing agreement with the
Company's former parent. Other income and expenses of 1993 includes a $4.0
million charge related to the accrual of a contingent loss with respect to the
operations of a former affiliate of Adobe.
 
     1992 Compared with 1991
 
     Total revenues increased approximately 13% from $379.8 million in 1991 to
$427.5 million in 1992 principally due to an increase of approximately $53.2
million attributable to production from properties acquired in the Adobe Merger
and an increase of approximately $10.7 million and $10.2 million in revenues
from the Company's domestic and Argentine properties, respectively, offset in
part by a decline of $32.0 million in crude oil hedging revenues. Oil production
increased 13% from 55.5 MBbls per day in 1991 to 62.5 MBbls per day in 1992,
reflecting a 3.4 MBbl per day increase in domestic oil production and a 3.6 MBbl
per day increase in production in Argentina and Indonesia. The average price
realized per barrel of oil during 1992 decreased to $14.96, a decrease of 7%
versus the average price of $16.16 in
 
                                       22
<PAGE>   25
 
1991, primarily reflecting a $32.0 million decrease in hedging revenues. Natural
gas production increased 33% from 95.2 MMcf per day in 1991 to 126.3 MMcf per
day in 1992 as a result of properties acquired in the Adobe Merger. Average
natural gas prices realized increased approximately 14% from $1.49 per Mcf in
1991 to $1.70 per Mcf in 1992.
 
     Total operating expenses of the Company increased $54.6 million from $315.4
million in 1991 to $370.0 million in 1992 primarily reflecting costs associated
with the Adobe Merger. Production and operating costs in 1992 were $18.8 million
higher than in 1991, primarily reflecting costs related to the Adobe Properties
and increased fuel costs associated with the Company's EOR projects. On a BOE
basis, production and operating costs declined from $5.17 per barrel in 1991 to
$5.02 per barrel in 1992, primarily reflecting the lower cost structure of the
Adobe Properties. Exploration costs were $6.8 million higher than in 1991
primarily reflecting higher geological and geophysical costs with respect to
foreign projects. Depletion, depreciation and amortization costs were $39.7
million higher in 1992 due to the acquisition of the Adobe Properties and, to a
lesser extent, adjustments to oil and gas reserves with respect to certain
producing properties. General and administrative costs increased $3.1 million
principally due to a $1.2 million charge related to certain stock awards which
fully vested upon consummation of the Adobe Merger and certain other
merger-related costs. Taxes (other than income) decreased by $2.9 million in
1992, as a result of lower accruals with respect to property taxes. The $13.6
million gain on the disposition of properties in 1992 primarily relates to the
sale of certain royalty interest properties, in which the Company had no
remaining financial basis.
 
     The increase in interest expense during 1992 reflects the increase in debt
as a result of the Adobe Merger. Other income and expenses for 1992 includes a
$10.9 million charge for costs incurred by Adobe in connection with the Adobe
Merger and paid by Santa Fe.
 
LIQUIDITY AND CAPITAL RESOURCES
 
   
     Historically, the Company has generally funded capital and exploration
expenditures and working capital requirements from cash provided by operating
activities. Depending upon the future levels of operating cash flows, which are
significantly affected by oil and gas prices, the restrictions on additional
borrowings included in certain of the Company's debt agreements, together with
debt service requirements and dividends, may limit the cash available for future
exploration, development and acquisition activities. Net cash provided by
operating activities totaled $14.3 million in the first quarter of 1994 and
$41.6 million in the first quarter of 1993; net cash used in investing
activities (net of proceeds from the sales of properties) in such periods
totaled $10.8 million and $27.8 million, respectively. Net cash provided by
operating activities totaled $160.2 million, $141.5 million and $128.4 million
for the years ended December 31, 1993, 1992 and 1991, respectively; net cash
used in investing activities in such periods totaled $121.4 million, $15.9
million and $117.2 million, respectively.
    
 
   
     The Company's cash flow from operating activities is a function of the
volumes of oil and gas produced from the Company's properties and the sales
prices realized therefor. Crude oil and natural gas are depleting assets.
Therefore, unless the Company replaces over the long term the oil and natural
gas produced from the Company's properties, the Company's assets will be
depleted over time and its ability to service and incur debt at constant or
declining prices will be reduced. The Company's cash flow from operations for
the first quarter of 1993 reflects an average sales price (unhedged) for the
Company's 1993 oil production of $13.73 per barrel and the Company's average
sales price for oil production for the full year 1993 (unhedged) was $12.93 per
barrel. For the three months ended March 31, 1994, the average sales price
(unhedged) for the Company's 1994 oil production was $10.00 per barrel. If such
lower oil prices prevail throughout 1994, the Company's cash flow from operating
activities for 1994 will be significantly lower than that for 1993.
    
 
     In October 1993, the Company's Board of Directors adopted a broad corporate
restructuring program that focuses on the concentration of capital spending in
core areas and the disposition of non-core assets. The Company's asset
disposition program adopted in connection with the 1993 restructuring program
has been substantially completed by the asset sales to Hadson, Vintage and
Bridge, the sale
 
                                       23
<PAGE>   26
 
   
of the 575,000 Depositary Units in the Trust and the sale of its interest in
certain other oil and gas properties. As a result of such sales, the Company
sold a total of 16.7 MMBOE of proved reserves and undeveloped acreage for a
total of approximately $108.9 million, and sold certain gas gathering and
processing facilities for Hadson securities.
    
 
   
     In conjunction with the 1993 restructuring program, the Company also
determined to undertake a review of its capital and cost structures. Based upon
such review of its capital structure, the Company determined to proceed with the
Refinancing in the belief that it will increase the Company's financial
flexibility, strengthen the Company's financial condition and permit the Company
to pursue aggressively its operating strategy. The net proceeds from the
Refinancing will be used to repay existing indebtedness of the Company. See "Use
of Proceeds." Based upon the review of its cost structure, the Company has
implemented a cost reduction program that includes the reduction of its salaried
work force by approximately 20%, an improvement in the efficiency of its
information systems and reductions in other general and administrative costs.
These measures, together with the Company's on-going efforts to reduce
production costs and the recent sales of its higher cost, non-core properties,
are designed to reduce costs and expenses by approximately $30.0 million from
the 1993 level (which reduction includes approximately $5.0 million of
non-recurring costs). Approximately $10.0 million of the estimated cost
reduction is expected to be in production and operating costs. Substantially all
of this cost reduction program is expected to be implemented by year end 1994.
During the quarter ended March 31, 1994, the Company recorded $7.0 million in
restructuring charges reflecting the estimated costs of such cost reduction
program.
    
 
   
     Under the most restrictive covenant in the Company's existing credit
agreements, as of March 31, 1994 the Company could incur up to $61.7 million of
additional indebtedness. After giving effect as of March 31, 1994 to the
consummation of this Offering and the Concurrent DECS Offering and the
application of the net proceeds therefrom, as described in "Use of Proceeds,"
the Company would have been able to incur up to $147.3 million of additional
indebtedness under its most restrictive covenant. At March 31, 1994, under the
Company's most restrictive covenant, the Company had the ability to pay $18.4
million in dividends on its capital stock. Pro forma for this Offering and the
Concurrent DECS Offering, the Company would have had the capacity to pay
dividends of up to $110.0 million in the aggregate on its capital stock,
including its Convertible Preferred Stock, Series 7%, and the DECS. However,
pursuant to the terms of the Debentures, upon completion of this Offering and
the Concurrent DECS Offering the Company would have the ability to pay only up
to $50.0 million on its Common Stock. The amount permitted under these covenants
to be used to pay dividends will vary over time depending, among other things,
on the Company's earnings and any issuances of capital stock. The Indenture does
not restrict the Company from paying preferred dividends on the Convertible
Preferred Stock, Series 7%, or the DECS; however, payment of such preferred
dividends reduces the Company's capacity under the Indenture to pay Common Stock
dividends.
    
 
     As a part of the 1993 restructuring program, the Company eliminated its
$0.04 per share quarterly dividend on its Common Stock and announced that it
might spend up to $240 million in 1994 on an accelerated capital program.
However, as a result of the depressed crude oil prices that have prevailed since
November 1993, the Company, consistent with industry practice, has determined to
defer certain of its capital projects in order to prudently manage cash flow in
the near term. Based on current market conditions, the Company has authorized up
to $130 million of capital expenditures during 1994, a level which should allow
the Company to replace its estimated 1994 production, although no assurance can
be given regarding such replacement. The Company intends to continue to monitor
its capital expenditure program throughout the balance of 1994 and may, in
response to industry conditions, including, without limitation, prevailing oil
and natural gas prices and the outlook therefor, revise such program.
 
     The Company is a party to several long-term and short-term credit
agreements which restrict the Company's ability to take certain actions,
including covenants that restrict the Company's ability to incur additional
indebtedness and to pay dividends on its capital stock. For a description of
such credit agreements at December 31, 1993, see Note 7 of the Notes to the
Company's Consolidated Financial
 
                                       24
<PAGE>   27
 
Statements included elsewhere in this Prospectus. For a description of the
proposed terms of the Debentures, see "Description of the Debentures."
 
   
     Effective March 16, 1994, the Company entered into the Bank Facility with a
group of banks for which Texas Commerce Bank National Association ("Texas
Commerce") and NationsBank of Texas act as co-agents. The Bank Facility consists
of a five-year secured reducing revolving credit facility maturing December 31,
1998 ("Facility A") and a three-year unsecured reducing revolving credit
facility maturing December 31, 1996 ("Facility B"). Assuming completion of this
Offering and the Concurrent DECS Offering and the application of the net
proceeds therefrom as described in "Use of Proceeds," the initial aggregate
borrowing limits under the Bank Facility would be $175.0 million (up to $90.0
million under Facility A and up to $85.0 million under Facility B), none of
which would be outstanding. Interest rates under the Bank Facility are tied to
LIBOR or Texas Commerce's prime rate, with the actual interest rate reflecting
certain ratios based upon the Company's ability to repay its outstanding debt
and the value and projected timing of production of the Company's oil and gas
reserves. These and other similar ratios will also affect the Company's ability
to borrow under the Bank Facility and the timing and amount of any required
repayments and corresponding commitment reductions. Marc J. Shapiro, a director
of the Company, is the Chairman and Chief Executive Officer of Texas Commerce.
    
 
EFFECTS OF INFLATION
 
     Inflation during the three years ended December 31, 1993 has had little
effect on the Company's capital costs and results of operations.
 
ENVIRONMENTAL MATTERS
 
     Almost all phases of the Company's oil and gas operations are subject to
stringent environmental regulation by governmental authorities. Such regulation
has increased the costs of planning, designing, drilling, installing, operating
and abandoning oil and gas wells and other facilities. The Company has expended
significant financial and managerial resources to comply with such regulations.
Although the Company believes its operations and facilities are in general
compliance with applicable environmental regulations, risks of substantial costs
and liabilities are inherent in oil and gas operations. It is possible that
other developments, such as increasingly strict environmental laws, regulations
and enforcement policies or claims for damages to property, employees, other
persons and the environment resulting from the Company's operations, could
result in significant costs and liabilities in the future. As it has done in the
past, the Company intends to fund its cost of environmental compliance from
operating cash flows. See also, "Business--Other Business Matters--Environmental
Regulation" and Note 12 of the Notes to the Company's Consolidated Financial
Statements included elsewhere in this Prospectus.
 
DIVIDENDS
 
     Dividends on the Company's Convertible Preferred Stock, Series 7%, are
cumulative at an annual rate of $1.40 per share. No dividends may be declared or
paid with respect to the Common Stock if any dividends with respect to the
Convertible Preferred Stock, Series 7%, or, assuming consummation of the
Concurrent DECS Offering, the DECS are in arrears. As described elsewhere in
this Prospectus, the Company has eliminated the payment of its $0.04 per share
quarterly dividend on its Common Stock. The determination of the amount of
future cash dividends, if any, to be declared and paid on the Company's Common
Stock is in the sole discretion of the Company's Board of Directors and will
depend on dividend requirements with respect to the Convertible Preferred Stock,
Series 7%, and, assuming consummation of the Concurrent DECS Offering, the DECS,
the Company's financial condition, earnings and funds from operations, the level
of capital and exploration expenditures, dividend restrictions in financing
agreements, future business prospects and other matters the Board of Directors
deems relevant.
 
                                       25
<PAGE>   28
 
                            BUSINESS AND PROPERTIES
 
GENERAL
 
     The Company is engaged in the exploration, development and production of
oil and natural gas in the continental United States and in certain foreign
areas. At December 31, 1993, the Company had worldwide proved reserves totaling
292.0 MMBOE (consisting of approximately 248.2 MMBbls of oil and approximately
263.0 Bcf of natural gas), of which approximately 93% were domestic reserves and
approximately 7% were foreign reserves. During 1993, the Company's worldwide
production aggregated approximately 94.3 MBOE per day, of which approximately
71% was crude oil and approximately 29% was natural gas. A substantial portion
of the Company's domestic oil production is in long-lived fields with
well-established production histories. Pursuant to the Company's corporate
restructuring program (see "--Corporate Restructuring Program" below), the
Company has focused its activities on its three domestic core areas--the Permian
Basin in Texas and New Mexico, the offshore Gulf of Mexico and the San Joaquin
Valley of California--as well as in Argentina and Indonesia.
 
     For the five years ended December 31, 1993, the Company has replaced
approximately 172% of its production at an average finding cost of $4.80 per
BOE. Over the last four years, the Company has increased overall production by
increasing production from existing properties and through acquisitions. In
addition, the Company has reduced its overall cost structure. For example, over
the four-year period ended December 31, 1993, Santa Fe has increased its average
daily production from 69.1 MBOE to 94.3 MBOE (including 7.7 MBOE per day in 1993
attributable to production from non-core assets sold pursuant to the corporate
restructuring program) and has reduced its average production costs (including
related production, severance and ad valorem taxes) from $6.22 per BOE in 1990
to $5.39 per BOE in 1993.
 
   
     Most of the Company's domestic crude oil production is located in
California and Texas, while its domestic natural gas production comes primarily
from the Gulf of Mexico, New Mexico and Texas. During 1993, the Company's
domestic daily production averaged approximately 60.2 MBbls of crude oil and
165.0 MMcf of natural gas. Substantially all of the Company's oil and gas
production is sold at market responsive prices. Pursuant to the corporate
restructuring program, the Company sold properties having 1993 combined
production of 4.1 MBbls per day and 21.7 MMcf per day and estimated proved
reserves of approximately 16.7 MMBOE. The domestic crude oil marketing
activities of the Company are conducted through its Santa Fe Energy Products
Division ("Energy Products"), which is also engaged in crude oil trading.
Substantially all of the Company's domestic natural gas production is currently
marketed under the terms of a sales contract with Hadson. See "--Current Markets
for Oil and Gas."
    
 
     A substantial portion of the Company's domestic oil production is in
long-lived fields with well-established production histories and where EOR
methods are employed. As of December 31, 1993, approximately 69% of the
Company's domestic proved crude oil and liquids reserves and 50% of its 1993
average daily domestic production of crude oil and liquids were attributable to
the Midway-Sunset field in the San Joaquin Valley of California, where the
Company first began production in 1905. Nearly all of the reserves in this field
are heavy oil, the production of which depends primarily on steam injection. As
of December 31, 1993, an additional 21% of the Company's domestic proved crude
oil and liquids reserves and approximately 25% of its 1993 average daily
domestic production of crude oil and liquids were attributable to five other oil
producing properties: the Wasson and Reeves fields in the Permian Basin of west
Texas and the South Belridge, Kern River and Coalinga fields in the San Joaquin
Valley.
 
     The Company's foreign production is located in the El Tordillo field in
Argentina and in the Salawati Basin and Salawati Island area of Indonesia.
Production from the El Tordillo field averaged 2.4 MBbls of oil per day in 1993
and production from the Indonesian operations averaged 4.1 MBbls of oil per day
in 1993.
 
     The Company maintains an active exploration and development program, a
significant portion of which consists of EOR projects on the producing fields
discussed above. During 1993, Santa Fe spent a total of $128.6 million on
exploration and development programs and $32.6 million on proved property
acquisitions. In October 1993, the Company announced that its 1994 capital
expenditures could increase
 
                                       26
<PAGE>   29
 
to up to $240 million. However, as a result of depressed oil prices that have
prevailed since November 1993, the Company, consistent with industry practice,
has determined to defer certain of its capital projects in order to prudently
manage cash flow in the near term. Based upon current market conditions, the
Company has authorized up to $130 million of capital expenditures during 1994, a
level which should allow the Company to replace its estimated 1994 production,
although no assurance can be given regarding such replacement. The Company
intends to continue to monitor its capital expenditure program throughout the
balance of 1994 and may, in response to industry conditions, including, without
limitation, prevailing oil and natural gas prices and the outlook therefor,
revise such program.
 
     In the United States, at December 31, 1993, the Company held oil and gas
rights to approximately 0.8 million net undeveloped leasehold and fee acres in
14 states, excluding approximately 1.1 million net undeveloped acres sold to
Bridge in April 1994 and 0.1 million net undeveloped fee acres sold to another
company in January 1994. See "--Corporate Restructuring Program." Outside the
United States, at December 31, 1993, the Company held exploration rights with
respect to an aggregate of approximately 3.5 million net undeveloped acres in
Argentina, Bolivia, Canada, Gabon, Indonesia, Morocco, Myanmar and Papua New
Guinea.
 
CORPORATE RESTRUCTURING PROGRAM
 
     In October 1993, the Company's Board of Directors adopted a broad corporate
restructuring program designed to improve earnings and cash flow while
increasing production and replacing reserves in the long-term. The restructuring
program is the result of an intensive review of the Company's operations and
cash flows and focuses on the concentration of capital spending in the Company's
core operating areas and the disposition of non-core assets. To provide
additional funding for the capital program, the Company also announced the
elimination of the payment of its $0.04 per share quarterly dividend on the
Common Stock, which will make available approximately $14 million annually. The
dividend on the Company's Convertible Preferred Stock, Series 7%, will remain at
its current level and, assuming consummation of the Concurrent DECS Offering,
dividends on the DECS are expected to be approximately $     million per year.
 
     As a part of the Company's restructuring program, the Company intends to
concentrate its capital spending on its three domestic core areas--the Permian
Basin in Texas and New Mexico, the offshore Gulf Coast and the San Joaquin
Valley of California--as well as its productive areas in Indonesia and
Argentina. The domestic program includes development activities in the Delaware
formation in southeast New Mexico, a development drilling program for the
offshore Gulf of Mexico natural gas properties and infill drilling in the San
Joaquin Valley of California. Internationally, the program includes development
of the Company's Sierra Chata discovery in Argentina with gas sales expected to
commence in early 1995.
 
     The restructuring program includes an evaluation of the Company's capital
and cost structures to examine ways to increase flexibility and strengthen the
Company's financial performance. In this respect, in 1994 the Company determined
to proceed with the Refinancing, of which this Offering and the Concurrent DECS
Offering are a part, pursuant to which approximately $180 million of the
Company's long-term indebtedness will be refinanced, assuming consummation of
such offerings.
 
   
     As a result of the dispositions described below, the Company has sold
undeveloped leasehold acreage and properties having combined production during
1993 of 4.1 MBbls of oil per day and 21.7 MMcf of natural gas per day and
estimated proved reserves of approximately 16.7 MMBOE for total proceeds of
approximately $89.3 million, has sold its natural gas gathering and processing
assets for Hadson securities and has realized approximately $11.3 million from
the sale of its remaining Depositary Units in the Trust. In addition, during the
first quarter of 1994 the Company sold its interest in certain oil and gas
properties for $8.3 million. As a result of these transactions, the Company has
disposed of substantially all of its inventory of non-core properties.
    
 
     Sale to Hadson.  In December 1993, the Company completed a transaction with
Hadson under the terms of which the Company sold the common stock of Adobe Gas
Pipeline Company ("AGPC"), a wholly owned subsidiary, to Hadson in exchange for
Hadson 11.25% preferred stock with a face value of
 
                                       27
<PAGE>   30
 
$52.0 million and 40% of Hadson's common stock. In addition, the Company signed
a seven-year gas sales contract under the terms of which Hadson will market
substantially all of the Company's domestic natural gas production from
specified existing wells and certain domestic development and exploration wells.
Pursuant to such contract, Hadson will be required to pay the Company for all
production delivered at a price for such gas equal to stipulated published
monthly index prices. See "--Current Markets for Oil and Gas." The Company also
designated one-half of the members of the Hadson Board of Directors.
 
     AGPC's assets include approximately 630 miles of gathering and
transportation lines in Oklahoma, Texas and New Mexico with three processing
plants in west Texas and New Mexico and an intrastate pipeline system supplying
gas to commercial customers in Lubbock, Texas. Hadson's natural gas assets are
predominantly located in southeastern New Mexico and include two gas processing
facilities, a 12 Bcf natural gas storage facility and the 650-mile Llano
intrastate pipeline which has six connections to various interstate pipelines
serving strategic markets in the Midwest, on the East Coast and in southern
California.
 
   
     Sale to Vintage.  In November 1993, the Company completed the sale to
Vintage of certain southern California and Gulf Coast producing properties for
net proceeds totaling $42.0 million in cash. The transaction included most of
the Company's California interests outside its core area in the San Joaquin
Valley as well as certain onshore Gulf Coast properties in Texas, Louisiana and
Mississippi. Production from the properties sold to Vintage averaged
approximately 2.8 MBbls of oil per day and 6.5 MMcf of natural gas per day
during 1993. During 1993, such properties contributed $2.7 million to the
Company's income from operations.
    
 
   
     Sale to Bridge.  On April 8, 1994, the Company completed the sale to Bridge
of certain Mid-Continent and Rocky Mountain producing and nonproducing oil and
gas properties. The purchase agreement was originally signed in December 1993.
Bridge paid the Company approximately $47.3 million in cash, reflecting the net
effect of estimated closing adjustments to the original $51 million sales price.
    
 
     The transaction included substantially all of the Company's assets in the
Anadarko Basin of Oklahoma and Texas as well as its interests in the Rocky
Mountain states, excluding its interests in the Canyon Creek natural gas field
in Wyoming. The undeveloped acreage includes approximately 1.7 million mineral
and leasehold acres and exploratory options on an additional 8.1 million acres.
Production from the properties sold to Bridge averaged approximately 1.3 MBbls
of oil per day and 15.2 MMcf of natural gas per day during 1993. During 1993,
such properties contributed $5.8 million to the Company's income from
operations.
 
                                       28
<PAGE>   31
 
RESERVES
 
     The following tables set forth information regarding changes in the
Company's estimates of proved net reserves from January 1, 1991 to December 31,
1993 and the balance of the Company's estimated proved developed reserves at
December 31 of each of the years 1990 through 1993.
 
<TABLE>
<CAPTION>
                                                                        INCREASES (DECREASES)
                                              -------------------------------------------------------------------------
                                                                                      NET
                                   BALANCE    REVISION               EXTENSIONS,   PURCHASES                 CHANGES IN   BALANCE
                                     AT          OF                  DISCOVERIES   (SALES) OF                OWNERSHIP-   AT END
                                  BEGINNING   PREVIOUS    IMPROVED       AND        MINERALS                  PARTNER-      OF
                                  OF PERIOD   ESTIMATES   RECOVERY    ADDITIONS     IN PLACE    PRODUCTION    SHIP(A)     PERIOD
                                  ---------   ---------   --------   -----------   ----------   ----------   ----------   -------
<S>                                   <C>        <C>        <C>          <C>          <C>          <C>          <C>        <C>
Proved Reserves at December 31,
  1991:
  Oil and Condensate (MMBbls).....    222.3       (1.9)     15.9          1.8          10.9        (20.2)        0.4       229.2
  Gas (Bcf).......................    185.9        0.4       0.5         19.6          (3.0)       (34.8)        2.2       170.8
  Oil Equivalent (MMBOE)..........    253.3       (1.8)     16.0          5.1          10.4        (26.0)        0.7       257.7
Proved Reserves at December 31,
  1992:
  Oil and Condensate (MMBbls).....    229.2       14.1      17.0          2.6          15.0        (23.0)        0.2       255.1
  Gas (Bcf).......................    170.8        7.3       1.3          5.6         137.1        (46.2)        1.6       277.5
  Oil Equivalent (MMBOE)..........    257.7       15.3      17.2          3.6          37.9        (30.6)        0.4       301.5
Proved Reserves at December 31,
  1993:
  Oil and Condensate (MMBbls).....    255.1      (10.8)     26.7          6.2          (4.8)       (24.3)        0.1       248.2
  Gas (Bcf).......................    277.5       26.7        --         55.9         (37.5)       (60.4)        0.8       263.0
  Oil Equivalent (MMBOE)..........    301.5       (6.3)     26.7         15.4         (11.1)       (34.4)        0.2       292.0 (b)
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                             DECEMBER 31,
                                                                           ------------------------------------------------
                                                                            1993          1992          1991          1990
                                                                           ------        ------        ------        ------
<S>                                                                         <C>           <C>           <C>           <C>
Proved Developed Reserves (MMBOE)......................................     225.5         248.4         210.3         205.0
</TABLE>
 
- ---------------
 
(a) The information set forth under the column headed "Changes in
     Ownership--Partnership" reflects reserve additions attributable to the
     Company's increased ownership interest in Santa Fe Energy Partners, L.P.
     (the "Partnership") caused by the reinvestment of distributions received by
     the Company in respect of its interest in the Partnership. At December 31,
     1993, the Company (through its subsidiaries) owned an aggregate 100%
     interest in the Partnership.
 
(b) At December 31, 1993, 5.2 MMBOE were subject to a 90% net profits interest
     held by the Trust. See "--Santa Fe Energy Trust."
 
     Historically, the Company has utilized active development and exploration
programs as well as selected acquisitions to replace its reserves depleted by
production. The Company has increased its proved reserves (net of production) by
approximately 35% over the five years ended December 31, 1993. Most of such
increases are attributable to proved reserve additions from the Company's
producing oil properties in the San Joaquin Valley of California and the Permian
Basin in west Texas, proved reserves acquired in the Adobe Merger and other
purchases of oil and gas reserves. At December 31, 1993, the Company's reserves
were 9.5 MMBOE lower than at December 31, 1992, primarily reflecting the sale
during 1993 of properties with reserves totaling 16.7 MMBOE partially offset by
additions.
 
                                       29
<PAGE>   32
 
     The following table sets forth as of December 31, 1993 the Company's
estimated proved reserves and the discounted net present value thereof in each
of the Company's principal operating areas.
 
<TABLE>
<CAPTION>
                                                              NATURAL         OIL             PRE-TAX
                                                  OIL           GAS        EQUIVALENT         PV1O(A)
             OPERATING REGION                   (MMBBLS)      (MMCF)        (MMBOE)        (IN MILLIONS)
- -------------------------------------------     --------      -------      ----------      -------------
<S>                                               <C>          <C>            <C>             <C>
Permian Basin..............................        41.6         45.8           49.2           $128.1
Offshore Gulf of Mexico....................         3.8        103.8           21.1            169.8
San Joaquin Valley.........................       183.6         11.8          185.6            167.1
Other Domestic.............................         1.9         74.5           14.3             78.2
International..............................        17.3         27.1           21.8             24.6
                                                  -----        -----          -----           ------
  Total....................................       248.2        263.0          292.0           $567.8
                                                  -----        -----          -----           ------
                                                  -----        -----          -----           ------
</TABLE>
 
- ---------------
 
(a) Represents the net present value (discounted at 10%) of the pre-tax future
     net cash flows estimated to result from production of the Company's
     estimated proved reserves using estimated sales prices and estimates of
     production costs, ad valorem and production taxes and future development
     costs necessary to produce such reserves. The sales prices used in the
     determination of proved reserves and of estimated future net cash flows are
     based on the prices in effect at year end, and for 1993 averaged $9.27 per
     barrel for oil and $2.17 per Mcf for natural gas. The average sales price
     (unhedged) realized by the Company for its production during 1993 was
     $12.93 per barrel for oil and $2.03 per Mcf for natural gas.
 
     Ryder Scott Company ("Ryder Scott"), a firm of independent petroleum
engineers, prepared the above estimates of the Company's total proved reserves
as of December 31, 1990 through 1993.
 
     During 1993 the Company filed Energy Information Administration Form 23
which reported natural gas and oil reserves for the year 1992. On an equivalent
barrel basis, the reserve estimates for the year 1992 contained in such report
and those reported herein for the year 1992 do not differ by more than five
percent.
 
DOMESTIC DEVELOPMENT ACTIVITIES
 
     The Company is engaged in development activities primarily through the
application of thermal enhanced recovery techniques to its heavy oil properties
in the San Joaquin Valley, the use of secondary waterfloods and tertiary CO2
floods on its properties in other mature fields and the development of producing
properties acquired by the Company through its exploration successes and its
acquisition program. Thermal EOR operations involve the injection of steam into
a reservoir to raise the temperature and reduce the viscosity of the heavy oil,
facilitating the flow of the oil into producing wellbores. The Company has
operated thermal EOR projects in the San Joaquin Valley since the mid-1960s.
Similarly, the Company has extensive experience in the use of waterfloods, which
involve the injection of water into a reservoir to drive hydrocarbons into
producing wellbores. The Company has an interest in more than 50 waterflood
projects, and additional projects are planned for the future. Following the
waterflood phase, certain fields may continue to produce in response to tertiary
EOR projects, such as the injection of CO2 which mixes miscibly with the oil and
improves the displacement efficiency of the water injection. The Company's
principal CO2 floods are in the Wasson field and are operated by affiliates of
Shell Oil Company, ARCO and Amoco.
 
     Set forth below is a discussion of some of the Company's principal
development projects. The Company has operated in the Midway-Sunset and Wasson
fields since 1905 and 1939, respectively. The Company acquired interests in the
South Belridge field from Petro-Lewis in 1987 and in January 1991 expanded its
holdings in the field with the purchase of certain properties from Mission
Operating Partnership, L.P. The Company's interests in the Kern River and
Coalinga fields were acquired in 1905 and 1977, respectively. The Gulf of Mexico
fields were discovered on leases held by the Company or
 
                                       30
<PAGE>   33
 
acquired in the Adobe Merger, while the Delaware and Cisco-Canyon properties
were acquired as undeveloped properties.
 
     SAN JOAQUIN VALLEY
 
     Midway-Sunset.  The Company owns a 100% working interest (92% average net
revenue interest) in over 10,000 gross acres and 2,200 active wells in the
Midway-Sunset field. Substantially all the oil produced from the Midway-Sunset
field is heavy crude oil produced principally by cyclic steam and steamflood
operations from Pleistocene and Miocene reservoirs at depths less than 2,000
feet. These steam stimulation operations were initiated in the field in the
mid-1960s. During 1993 the Midway-Sunset field accounted for approximately 50%
of the Company's domestic crude oil and liquids production.
 
     At December 31, 1993 the Midway-Sunset field accounted for approximately
69% of the Company's domestic proved crude oil and liquid reserves. Reservoir
engineering studies prepared on behalf of the Company indicate significant
additions to its proved reserves in this field can continue to be made through
additional EOR and development projects. The Company has identified a
substantial number of locations that could be drilled in the field, depending in
part on future prices and economic conditions. The Company is pursuing
electrical cogeneration opportunities which could lower Midway-Sunset operating
costs.
 
     South Belridge.  The South Belridge field is located approximately 15 miles
north of the Midway-Sunset field. The Company operates three leases in the field
which produce heavy oil from the shallow Tulare sands and lighter low viscosity
oil from the deeper Diatomite reservoirs. Steamflood operations in the lower
Tulare sands are in progress on one of these leases and plans call for flooding
the remaining Tulare sands on this lease and all Tulare sands on another lease
in the coming years. Waterflood operations in the Diatomite reservoir have been
initiated on two leases and the Company expects to expand these operations to
include the rest of the developed area.
 
     Coalinga.  The Coalinga field is located 55 miles southwest of Fresno,
California. Successful steamfloods and a pilot steamflood project have been
conducted in the Lower Temblor Sands on three of the six leases in which the
Company owns interests in the field. During the next several years, the Company
plans to expand the pilot steamflood project in the lower sands to cover the
remaining producing area and expand steam floods on the Upper Temblor Sands on
all leases after depletion of the lower zones. Most of the facilities required
for these projects are already in place as a result of the prior steamfloods.
 
     Kern River.  The Kern River field is located near Bakersfield, California.
The Lower Kern River Series sands have been successfully steamflooded on three
of the leases in which the Company owns an interest. Over the next several years
steamflood operations will be sequentially redeployed in the upper sands of the
Kern River Series. Eventually the Company plans to flood all sands on its
remaining leases in several stages. The Company has installed and operates a
large steam generation plant on these properties.
 
     PERMIAN BASIN
 
     Wasson.  The Company's interests in the Wasson field principally consist of
royalty and working interests in three units which are presently under CO2
flood. Most of the expenditures for plant, facilities, wells and equipment
necessary for such tertiary recovery projects have been made. In addition, while
expenditures relating to the purchase of CO2 for the Wasson field are expected
to continue, CO2 can be recycled and, therefore, such expenditures should
decline in the future.
 
     During 1993, the Wasson field accounted for approximately 9% of the
Company's domestic crude oil and liquids production and at December 31, 1993 the
field accounted for approximately 8% of the Company's domestic proved crude oil
and liquids reserves. Since initiation of CO2 flooding operations in 1984, the
field's previous production decline has been reversed. Reservoir engineering
studies prepared
 
                                       31
<PAGE>   34
 
on behalf of the Company indicate significant additions to proved reserves can
be made through additional EOR and development projects.
 
     Reeves.  The Company owns a 72% net interest in the Reeves field, seven
miles east of the large Wasson field in west Texas. The field has been under
waterflood since 1965. During 1993, six wells were drilled and 16 wells were
worked over as part of a program to delineate the extended productive limits of
the field, to evaluate the potential for infill drilling and to enhance current
waterflood operations. Based on the successes of the prior year's program, the
Company plans to initiate an infill drilling and workover program in this field
in the near future.
 
     New Mexico.  During 1993, the Company increased its activity in the
light-oil Delaware prospect in Lea and Eddy Counties of southeast New Mexico. A
total of 51 gross (18.1 net) development wells were completed in 1993 with a
100% success rate and during December 1993 such wells produced approximately 1.4
MBbls of oil per day and 3.1 MMcf of natural gas per day. Net production from
this area during December 1993 totaled approximately 1.5 MBbls of oil per day
and 4.0 MMcf of natural gas per day. The Company plans to drill additional
development wells in 1994.
 
     Also in southeastern New Mexico, the Company participated in five gross
(2.8 net) wells in 1993 in the light oil and gas Cisco-Canyon project. Four
wells were completed as producers from the Cisco-Canyon zone by year-end and a
fifth continued production testing. The Company plans to continue delineation of
this play which contains some 75 identified potential development locations.
 
     OFFSHORE GULF OF MEXICO
 
     At December 31, 1993, offshore Gulf of Mexico properties accounted for 39%
of the Company's proved natural gas reserves and during 1993 these properties
accounted for approximately 56% of the Company's natural gas production.
 
     In the Gulf Division, several new fields or field additions were placed on
production during 1993. Net production from these fields at year-end averaged
approximately 29.0 MMcf of gas per day. Further development in these fields is
either planned or under study for 1994 and 1995. The Company's activities in the
offshore Gulf of Mexico are conducted in shallow water (less than 300 feet),
where the costs of drilling, completion and production are not as uncertain as
are the costs in the Flextrend and Deepwater areas of the Gulf of Mexico. During
1993, the Company participated in the drilling of four gross (1.3 net)
exploratory wells and one gross (0.3 net) well was drilling at year-end (which
well resulted in a discovery and a multi-well development program is expected to
commence in 1994). For a description of the Company's leasehold position in the
offshore Gulf of Mexico, see "--Domestic Exploration Activities."
 
DOMESTIC EXPLORATION ACTIVITIES
 
     The Company's domestic exploration focus continues to be in the Permian
Basin and the offshore Gulf of Mexico. Overall the Company participated in 22
gross (9.0 net) exploratory wells in 1993. A total of ten gross (3.6 net) were
completed as producers for a 40% net well success. At year end there were nine
gross (4.3 net) wells in some stage of drilling or completion.
 
     As of December 31, 1993, the Company held approximately 0.3 million net
undeveloped leasehold acres in 14 states and offshore areas, excluding
approximately 0.5 million net undeveloped leasehold acres sold to Bridge in
April 1994. The primary terms of lease expire with respect to 24% of such
acreage in 1994, 25% in 1995, 15% in 1996, 10% in 1997 and the remainder
thereafter. In addition, the Company owns approximately 0.5 million net acres of
undeveloped fee minerals in Louisiana, Texas and California.
 
     The Company also controls the oil and gas rights on approximately 8.1
million net undeveloped acres in the western United States through direct
ownership and pursuant to lease option agreements from Santa Fe Pacific Railroad
Company and other former affiliates. These lands are located in high risk
exploration areas. Due to this risk, the Company has historically negotiated
with third parties to explore this acreage with the Company to receive a royalty
or carried interest in the exploration phase. An
 
                                       32
<PAGE>   35
 
agreement relating to substantially all of these oil and gas rights has been
entered into with Bridge. This agreement is intended to provide incentive to
Bridge to accelerate exploration activities on lands subject to these rights.
The Company will receive a small revenue interest in the event such activities
are successful.
 
     Set forth below is a brief discussion of some of the Company's principal
exploration programs.
 
     Permian Basin.  This area continues to be one of the Company's most active
and successful exploration areas. During 1993, the Company participated in 18
gross (7.7 net) exploratory wells. Eight gross (3.3 net) of these were completed
in 1993 as oil or gas discoveries. Additionally, eight gross (4.0 net) were in
some phase of drilling or completing at year-end.
 
     Drilling objectives for the Company's exploratory program target oil and
gas zones at depths of between 2,500 to 15,000 feet. The shallower targets such
as the Delaware and Cisco-Canyon formations are providing successful results.
The Delaware program in southeast New Mexico was the subject of seven gross (3.7
net) exploratory and 51 gross (18.1 net) development wells completed in 1993. A
success rate of 58% of the net exploratory wells and 100% of the net development
wells was achieved in this increasingly active light oil play. Currently, the
Company has identified in excess of 150 development well locations and has 20
exploratory prospects in inventory to be drilled over the next several years.
 
     In the west Texas Permian Basin, the Company completed the shooting of 3-D
seismic over its 250-square mile block near Midland last fall. The joint venture
block contains over 100,000 net acres of lands owned or controlled by the
Company and its partners. Almost all of the Company's 25% interest in the 3-D
seismic was paid by a promoted partner. Drilling began in December 1993 on two
prospects identified in this program. Additional drilling is planned on a
variety of other prospects in 1994 at depths of 10,000 to 12,000 feet.
 
     Offshore Gulf of Mexico.  The Company participated in four gross (1.3 net)
exploratory wells in the offshore Gulf of Mexico in 1993 and one gross (0.3 net)
was drilling at year-end. One gross (0.3 net) well resulted in a discovery on
which a multi-well development program will commence in the first quarter of
1994.
 
     The Company acquired 3-D seismic coverage over 12 blocks during 1993 adding
to its extensive Gulf of Mexico seismic database which includes 3-D coverage on
57 blocks. Currently, the Company has 35 exploratory prospects in inventory and
some 30 development locations identified, a portion of which are exploratory and
planned to be drilled in 1994.
 
     At year-end, the Company owned 179 blocks of acreage in the offshore Gulf
of Mexico consisting of approximately 299,800 gross (147,400 net) undeveloped
acres and 257,900 gross (79,000 net) developed acres.
 
INTERNATIONAL DEVELOPMENT ACTIVITIES
 
     Indonesia.  The Company, through a wholly owned subsidiary, is engaged in
the production of crude oil in Indonesia through a joint venture (the "Salawati
Basin Joint Venture") formed in 1970 to explore for and develop hydrocarbon
reserves in the Salawati Basin area of Irian Jaya. At December 31, 1993, the
Company held a 33 1/3% participation interest in, and acts as operator for, the
Salawati Basin Joint Venture. The Salawati Basin Joint Venture operates under a
production sharing contract (the "PSC") with the Indonesia state oil agency
("Pertamina"), which had an initial term of 30 years and expires in the year
2000. The Company is currently negotiating with such state oil agency to extend
the contract for an additional 20 years. As of December 31, 1993, the contract
covered an area of approximately 235,000 acres. Production occurs from seven oil
and three gas condensate fields.
 
     The PSC entitles the Salawati Basin Joint Venture to recover all of its
expenditures related to the operation (the "cost recovery amount") before any
additional production is shared with the Indonesian state oil agency, which
recovery is effected by allocating to the Salawati Basin Joint Venture a portion
of the crude oil production sufficient, at the Indonesian government official
crude oil price ("ICP"), to offset
 
                                       33
<PAGE>   36
 
the cost recovery amount. The balance of production after the cost recovery
amount is divided between the parties, with approximately 66% allocated to
Pertamina and 34% allocated to the Salawati Basin Joint Venture. However, 25% of
the 34% pre-tax portion (8.5% of total production) must be sold into the
Indonesian domestic market for $0.20 per barrel. The entire entitlement of the
Salawati Basin Joint Venture under the PSC, including the domestic market
obligation, averaged approximately 10.1 MBbls per day (approximately 3.4 MBbls
per day net to the Company) for the year ended December 31, 1993. The Salawati
Basin Joint Venture is required to pay Indonesian income taxes at the rate of
56%.
 
     The Company, through another subsidiary, has also entered into a joint
venture with Pertamina to explore the Salawati Island Block of Irian Jaya. The
effective date of this joint venture is April 23, 1990 with a term of 30 years.
At December 31, 1993, the Company held a 16 2/3% participation interest in the
block which covers 1.09 million acres. The Company and Pertamina (with its 50%
interest) jointly operate the contract area. In 1991, a successful exploratory
well tested at a combined rate of 3.6 MBbls of oil per day and was followed by
two successful delineation wells. Pertamina declared the field commercial in
January 1993 and designated it as the Matoa field. Sales of production began in
January 1993. Development activities through 1993 have the Matoa field producing
approximately 5.6 MBbls of oil per day from eight wells as of December 31, 1993.
 
     Under the terms of the PSC, the joint venture participants are allowed to
recover the cost recovery amount, after an initial 20% portion (2.9% to the
joint venture participants and 17.1% to Pertamina) has been deducted, by
allocating to the joint venture participants a portion of the crude oil
production ("cost oil") sufficient to offset the cost recovery amount. All
unrecovered costs in any calendar year can be carried forward to future years.
The balance of production after allocation of cost oil is allocated
approximately 85.5% to Pertamina and 14.5% to the other Salawati Island Venture
participants. However, 7.25% of the gross production allocated to the joint
venture participants must be sold into the Indonesian domestic market for 10% of
ICP.
 
     Argentina.  In 1991, the Company, through a wholly owned subsidiary,
acquired an 18% non-operated working interest (15.84% net interest) in the El
Tordillo field in Chubut Province, Argentina. At that time, the field was
producing approximately 10,500 barrels of oil per day. The Company has agreed to
spend approximately $16.7 million net during the period from July 1, 1992 to
July 1, 1996 on development and maintenance of the field which began with an
extensive workover and recompletion program. As of December 31, 1993 the El
Tordillo owners have completed 163 such workovers and drilled three new wells.
During that time, production increased to approximately 16.0 MBbls of oil per
day. The Company expects this program to continue through 1994 and anticipates
an expansion of the existing waterflood facilities.
 
     Under the terms of the contract with the Argentine national oil company,
the joint venture group is allowed to sell crude oil produced from this field
into the open market. There is a 12% royalty on gross production and the joint
venture is taxed at a 30% rate after deductions for capitalized costs and
expenses.
 
     In April 1993, the Company's subsidiary completed the Sierra Chata X-1 as a
successful exploratory test in Chihuidos Block, Neuquen Province, Argentina. The
well produced at a combined rate of 22.2 MMcf per day and 109 barrels of
condensate per day. Carbon dioxide content of the natural gas was 6%. Five
successful delineation wells were drilled in 1993. Producing rates on these
wells varied from 3.2 MMcf to 27.6 MMcf per day. Engineering and geological
studies are presently being undertaken to develop the field through additional
drilling, with 4.0 gross (1.0 net) additional wells currently planned for 1994.
In addition, the Company and its partners intend to build a gas processing
facility and a 40-mile gathering pipeline during 1994 that will transport
production from the field and interconnect with a main transmission line owned
by a third party that transports gas to Buenos Aires and other major markets.
Construction of the gas processing facility and the pipeline and the drilling of
the development wells are estimated to cost an aggregate of $76.0 million gross
($17.2 million net to the Company's interest). The Company expects that sales of
production from the Sierra Chata discovery will commence in 1995.
 
                                       34
<PAGE>   37
 
INTERNATIONAL EXPLORATION ACTIVITIES
 
     In 1993, the Company had its most active year ever in the international
arena. The Company participated in six gross (1.8 net) exploratory wells of
which two gross (0.5 net) were completed as natural gas wells. Additionally,
four gross (1.2 net) wells were either drilling or completing at year-end.
 
     The Company made one exploration discovery in 1993. The Sierra Chata
natural gas discovery in the Neuquen Basin of Argentina is being developed from
sandstone reservoirs at 6,000 feet. The Company has a 22.5% working interest
(20% net revenue interest) and is operator of this field. To date a total of six
gross (1.3 net) wells have been drilled with no dry holes. Combined gross flow
rates from these six wells are in excess of 100 MMcf of gas and 500 barrels of
condensate per day. Additional development drilling will continue during 1994 to
increase production capacity and further define the limits of the field. See
"--International Development Activities."
 
     The Company plans to drill eight gross (2.8 net) wells in 1994 in addition
to the four gross (1.2 net) wells which carried over from 1993 in either a
drilling or completing status. The 1994 drilling and exploratory activity will
be centered principally in Indonesia and South America. Of the total wells to be
completed in 1994, four gross (1.2 net) are in Indonesia, four gross (1.3 net)
are in Argentina and Bolivia, one gross (0.2 net) is in Papua New Guinea, two
gross (1.0 net) are in Canada and one gross (0.3 net) is in Gabon (West Africa).
 
   
     The Company holds exploration contracts totaling 3.5 million net acres in
eight foreign countries. The majority of acreage is in Indonesia (1.1 million
net acres) and South America (1.2 million net acres) with the balance in Canada,
Morocco, Myanmar, Papua New Guinea and Gabon.
    
 
DRILLING ACTIVITIES
 
     The table below sets forth, for the periods indicated, the number of wells
drilled in which the Company had an economic interest. As of December 31, 1993,
the Company was in the process of drilling or completing 9 gross (4.3 net)
domestic exploratory wells and 13 gross (5.3 net) domestic development wells, 4
gross (1.2 net) foreign exploratory wells and 3 gross (1.0 net) foreign
development wells.
 
<TABLE>
<CAPTION>
                                                                YEAR ENDED DECEMBER 31,
                                                --------------------------------------------------------
                                                      1993                1992                1991
                                                ----------------     --------------     ----------------
                                                GROSS      NET       GROSS     NET      GROSS      NET
                                                -----     ------     -----     ----     -----     ------
<S>                                              <C>       <C>        <C>       <C>      <C>       <C>
Development Wells
  Domestic
     Completed as natural gas wells.........      21         6.0        6       1.5       25         7.5
     Completed as oil wells.................     237       180.0       62      39.0      220       167.3
     Dry holes..............................      10         3.6        5       0.4        6         1.6
  Foreign
     Completed as natural gas wells.........       4         1.0       --        --       --          --
     Completed as oil wells.................       3         0.9       --        --       --          --
                                                -----     ------     -----     ----     -----     ------
                                                 275       191.5       73      40.9      251       176.4
                                                -----     ------     -----     ----     -----     ------
Exploratory Wells
  Domestic
     Completed as natural gas wells.........       3         0.9        1       0.3        6         2.0
     Completed as oil wells.................       7         2.7        4       1.2        6         1.9
     Dry holes..............................      12         5.4        2       0.6       19         7.2
  Foreign
     Completed as natural gas wells.........       2         0.4       --        --       --          --
     Completed as oil wells.................      --          --        1       0.3       --          --
     Dry holes..............................       4         1.3        4       1.3        3         0.4
                                                -----     ------     -----     ----     -----     ------
                                                  28        10.7       12       3.7       34        11.5
                                                -----     ------     -----     ----     -----     ------
                                                 303       202.2       85      44.6      285       187.9
                                                -----     ------     -----     ----     -----     ------
                                                -----     ------     -----     ----     -----     ------
</TABLE>
 
                                       35
<PAGE>   38
 
DOMESTIC ACREAGE
 
     The following table summarizes the Company's developed and undeveloped fee
and leasehold acreage in the United States at December 31, 1993. Excluded from
such information is acreage in which the Company's interest is limited to
royalty, overriding royalty and other similar interests.
 
<TABLE>
<CAPTION>
                                                          UNDEVELOPED                DEVELOPED
                                                     ---------------------     ---------------------
                                                      GROSS         NET         GROSS         NET
                                                     --------     --------     --------     --------
<S>                                                   <C>          <C>          <C>          <C>
Alabama--Offshore................................          --           --       23,040       12,480
Alabama--Onshore.................................       3,089          108        6,063          382
Arkansas.........................................         633          493        4,177        3,173
California--Offshore.............................          --           --       17,280        2,074
California--Onshore..............................     249,207      248,990        7,391        7,011
Colorado.........................................          --           --        6,368        5,657
Illinois.........................................         202           50           43           13
Kansas...........................................      19,433       19,373        4,591        1,002
Louisiana--Offshore..............................     222,376      116,843      190,675       57,721
Louisiana--Onshore...............................      17,575       16,620       14,635        2,941
Michigan.........................................          --           --           71           11
Mississippi......................................         114           30        3,724          810
Montana..........................................          --           --        3,196          142
Nevada...........................................       3,491          764        9,455        9,455
New Mexico.......................................     195,750      155,594       41,427       18,852
New York.........................................          --           --          189           47
North Dakota.....................................       1,509          544        4,337        1,377
Oklahoma.........................................       1,917        1,917       29,589        9,940
Texas--Offshore..................................      77,397       30,545       67,194       21,243
Texas--Onshore...................................     180,828      174,912      246,287      168,421
Utah.............................................       1,348          575        8,389        3,494
Wyoming..........................................      13,785       10,804       25,888       11,312
                                                     --------     --------     --------     --------
                                                      988,654      778,162      714,009      337,558
                                                     --------     --------     --------     --------
                                                     --------     --------     --------     --------
</TABLE>
 
     The foregoing table excludes approximately 2,033,400 gross (1,682,000 net)
undeveloped fee and leasehold acres and 80,200 gross (45,900 net) developed
acres sold to Bridge in April 1994 pursuant to a purchase agreement signed in
December 1993 and 123,000 gross (123,000 net) undeveloped acres sold in January
1994.
 
FOREIGN ACREAGE
 
     The following table summarizes the Company's foreign acreage at December
31, 1993:
 
<TABLE>
<CAPTION>
                                                          UNDEVELOPED                 DEVELOPED
                                                   -------------------------     -------------------
                                                      GROSS           NET         GROSS        NET
                                                   -----------     ---------     -------     -------
<S>                                                 <C>            <C>            <C>         <C>
Argentina......................................      2,103,010       550,457      53,988      10,858
Bolivia........................................      1,442,446       649,100          --          --
Canada (Alberta)...............................        150,703        68,071          --          --
Gabon..........................................        701,000       175,250          --          --
Indonesia......................................      4,439,569     1,059,193       9,360       2,870
Morocco........................................      1,300,000       422,500          --          --
Myanmar........................................        394,000       315,200          --          --
Papua New Guinea...............................      1,970,000       295,500          --          --
                                                   -----------     ---------     -------     -------
                                                    12,500,728     3,535,271      63,348      13,728
                                                   -----------     ---------     -------     -------
                                                   -----------     ---------     -------     -------
</TABLE>
 
                                       36
<PAGE>   39
 
CURRENT MARKETS FOR OIL AND GAS
 
     The revenues generated by the Company's operations are highly dependent
upon the prices of, and demand for, oil and gas. For the last several years,
prices of these products have reflected a worldwide surplus of supply over
demand. The price received by the Company for its crude oil and natural gas
depends upon numerous factors beyond the Company's control, including economic
conditions in the United States and elsewhere and the world political situation
as it affects OPEC, the Middle East (including the current embargo of Iraqi
crude oil from worldwide markets) and other producing countries, the actions of
OPEC and governmental regulation. The fluctuation in world oil prices continues
to reflect market uncertainty regarding OPEC's ability to control member country
production and underlying concern about the balance of world demand for and
supply of oil and natural gas. Decreases in the prices of oil and gas have had,
and could have in the future, an adverse effect on the Company's development and
exploration programs, proved reserves, revenues, profitability, cash flow and
dividend levels. See "Management's Discussion and Analysis of Financial
Condition and Results of Operations--General."
 
     The Company believes the market for heavy crude oil produced in California
differs substantially from the remainder of the domestic crude oil market. It is
necessary to heat or dilute heavy oil to make it flow, which increases
transportation and handling costs, and it is also more costly to refine. As a
result, the price paid for heavy crude oil is generally lower than the price
paid for light crudes. In addition, there is currently an oversupply of crude
oil in the California market that has had an adverse effect on the prices for
crude oil in that market. Although no assurance can be given, the Company
believes that such oversupply will not continue for the long term due to the
availability of crude oil pipelines to transport excess crude oils, including
blended oils, to markets in the Midwest and west Texas, and due to the decline
of crude oil produced from the North Slope of Alaska.
 
     From time to time the Company has hedged a portion of its oil and natural
gas production to manage its exposure to volatility in prices of oil and natural
gas. The Company used several instruments whereby monthly settlements were based
on the difference between the price, or a range of prices, specified in the
instruments and the monthly average of the daily settlement prices of certain
WTI crude oil futures contracts or of certain natural gas futures contracts
quoted on the New York Mercantile Exchange. In instances where the actual
average of the daily settlement price was less than the price specified in the
contract, the Company received a settlement based on the difference; in
instances where the actual average of the daily settlement price was higher than
the specified price, the Company paid an amount based on the difference. The
instruments utilized by the Company differed from futures contracts in that
there was no contractual obligation which required or allowed for the future
delivery of the product. Settlements were included in revenues in the period in
which the oil and natural gas were sold.
 
     In 1990, oil hedges resulted in a $10.7 million reduction in oil revenues
and in 1991 and 1992 oil hedges resulted in an increase in oil revenues of $41.7
million and $9.7 million, respectively. The Company has had no oil hedging
contracts subsequent to 1992. In 1992 and 1993, natural gas hedges resulted in a
reduction in natural gas revenues of $0.5 million and $8.2 million,
respectively. The Company currently has six open natural gas hedging contracts
covering an aggregate of approximately 24.6 MMcf of natural gas per day with
terms beginning in March and April 1994 and ending in August and September 1994.
The "approximate break-even price" (the average of the monthly settlement prices
of the applicable futures contracts which would result in no settlement being
due to or from the Company) with respect to such contracts is approximately
$1.88 per Mcf. In addition, a certain party holds an option to exercise an
additional hedging contract for a five-month period beginning May 1994 covering
approximately 4.7 MMcf of natural gas per day at an approximate break-even price
of $1.92 per Mcf. The Company has no other outstanding natural gas hedging
instruments.
 
     During 1993, affiliates of Shell Oil Company and Celeron Corporation
accounted for approximately 23% and 15%, respectively, of the Company's domestic
crude oil and liquids and natural gas revenues. No other individual customer
accounted for more than 10% of such revenues during 1993. Substantially all of
the Company's oil and natural gas production is currently sold at
market-responsive prices that approximate spot prices. Availability of a ready
market for the Company's oil and gas production depends
 
                                       37
<PAGE>   40
 
on numerous factors, including the level of consumer demand, the extent of
worldwide oil production, the cost and availability of alternative fuels, the
cost of and proximity of pipelines and other transportation facilities,
regulation by state and federal authorities and the cost of complying with
applicable environmental regulations.
 
     In December 1993, the Company signed a seven-year gas sales contract with
Hadson pursuant to the terms of which Hadson will market substantially all of
the Company's domestic natural gas production. Pursuant to such gas contract,
Santa Fe dedicated to Hadson all of its domestic natural gas production from
specified existing wells, which consist of essentially all of the Company's
domestic natural gas production, except to the extent such production was
dedicated under pre-existing contracts. Upon the expiration of any such
pre-existing contracts, that production shall also be dedicated to Hadson.
 
     In addition to production from existing wells, such gas contract provides
for the dedication by the Company of gas production from certain domestic
development wells and exploration wells to the extent that the Company accepts
proposals from Hadson to gather and market production from such exploration
wells. Production from gas wells acquired by the Company pursuant to an
acquisition of producing oil and gas properties will not be dedicated under the
gas contract but may be dedicated by the mutual agreement of the Company and
Hadson.
 
     Pursuant to the gas contract, Hadson will be required to pay the Company
for all production delivered at a price for such gas equal to stipulated
published monthly index prices. Hadson is obligated to use its best efforts to
receive gas from the Company at delivery points so as to maximize the net price
received by the Company for such production. Payment for purchases by Hadson are
to be made in immediately available funds no later than the last working day of
the month following the month of production.
 
SANTA FE ENERGY TRUST
 
     In November 1992, 5,725,000 Depositary Units, each consisting of beneficial
ownership of one unit of undivided interest in the Trust and a $20 face amount
beneficial ownership interest in a $1,000 face amount zero-coupon United States
Treasury obligation maturing on February 15, 2008, were sold in a public
offering. The assets of the Trust consist of certain oil and gas properties
conveyed by the Company. A total of $114.5 million was received from public
investors, of which $38.7 million was used to purchase the Treasury obligations
and $5.7 million was used to pay underwriting commissions and discounts. The
Company received the remaining $70.1 million of proceeds and retained 575,000
Depositary Units. A portion of the proceeds received by the Company was used to
retire $30.0 million of the debt incurred in connection with the Adobe Merger
and the remainder was used for general corporate purposes. In the first quarter
of 1994, the Company sold the remaining 575,000 Depositary Units it held for
$11.3 million.
 
     The properties conveyed to the Trust consisted of two term royalty
interests in two production units in the Wasson field in west Texas and a net
profits royalty interest in certain royalty and working interests in a
diversified portfolio of properties located in 12 states. At December 31, 1993,
5.2 MMBOE of the Company's estimated proved reserves were subject to such net
profits interest. The reserve estimates included herein reflect the conveyance
of the Wasson term royalties to the Trust.
 
     For any calendar quarter ending on or prior to December 31, 2002, the Trust
will receive additional royalty payments to the extent that such payments are
required to provide distributions of $0.40 per Depositary Unit per quarter. Such
additional royalty payments, if needed, will come from the Company's remaining
royalty interest in one of the production units in the Wasson field described
above, and are non-recourse to the Company. If such additional payments are
made, certain proceeds otherwise payable to the Trust in subsequent quarters may
be reduced to recoup the amount of such additional payments. The aggregate
amount of the additional royalty payments (net of any amounts recouped) are
limited to $20.0 million on a revolving basis. The Company was required to make
an additional royalty payment of $362,000 with respect to the distribution made
by the Trust for operations during the quarter ended
 
                                       38
<PAGE>   41
 
December 31, 1993. On April 21, 1994, the Trust announced that a distribution of
$0.40 per Depositary Unit would be paid for the calendar quarter ended March 31,
1994 to Unitholders of record on May 16, 1994, which distribution will include
an additional royalty payment by the Company of $505,700.
 
OTHER BUSINESS MATTERS
 
     Competition
 
     The Company faces competition in all aspects of its business, including,
but not limited to, acquiring reserves, leases, licenses and concessions;
obtaining goods, services and labor needed to conduct its operations and manage
the Company; and marketing its oil and gas. The Company's competitors include
multinational energy companies, government-owned oil and gas companies, other
independent producers and individual producers and operators. The Company
believes that its competitive position is affected by price, its geological and
geophysical capabilities and ready access to markets for production. Many
competitors have greater financial and other resources than the Company, more
favorable exploration prospects and ready access to more favorable markets for
their production. The Company believes that the well-defined nature of the
reservoirs in its long-lived oil fields, its expertise in EOR methods in these
fields, its active development and exploration position and its experienced
management may give it a competitive advantage over some other producers.
 
     Regulation of Crude Oil and Natural Gas
 
     The petroleum industry is subject to various types of regulation throughout
the world, including regulation in the United States by state and federal
agencies. Domestic legislation affecting the oil and gas industry is under
constant review for amendment or expansion, frequently increasing the regulatory
burden. Also, numerous departments and agencies, both federal and state, are
authorized by statute to issue and have issued rules and regulations binding on
the oil and gas industry and its individual members, compliance with which is
often difficult and costly and which may carry substantial penalties for
non-compliance. Although the regulatory burden on the oil and gas industry
increases the cost of doing business and, consequently, affects profitability,
generally these burdens do not appear to affect the Company any differently or
to any greater or lesser extent than other companies in the industry with
similar types and quantities of production. While the Company is a party to
several regulatory proceedings before governmental agencies arising in the
ordinary course of business, management does not believe that the outcome of
such proceedings will have a material adverse affect on the operations or
financial condition of the Company. Set forth below is a general description of
certain state and federal regulations which have an effect on the Company's
operations.
 
     State Regulation.  State statutes and regulations require permits for
drilling operations, drilling bonds and reports concerning operations. Most
states in which the Company operates also have statutes and regulations
governing the conservation of oil and gas and the prevention of waste, including
the unitization or pooling of oil and gas properties and rates of production
from oil and gas wells. Rates of production may be regulated through the
establishment of maximum daily production allowables on a market demand or
conservation basis or both.
 
     Federal Regulation.  A portion of the Company's oil and gas leases are
granted by the federal government and administered by the Bureau of Land
Management ("BLM") and the Minerals Management Service ("MMS"), both of which
are federal agencies. Such leases are issued through competitive bidding,
contain relatively standardized terms and require compliance with detailed BLM
and MMS regulations and orders (which are subject to change by the BLM and the
MMS). For offshore operations, lessees must obtain MMS approval for exploration
plans and development and production plans prior to the commencement of such
operations. In addition to permits required from other agencies (such as the
Coast Guard, Army Corps of Engineers and Environmental Protection Agency),
lessees must obtain a permit from the BLM or the MMS prior to the commencement
of drilling.
 
     The interstate transportation of natural gas is regulated by the Federal
Energy Regulatory Commission ("FERC") under the Natural Gas Act of 1938 and, to
a lesser extent, the Natural Gas Policy Act of
 
                                       39
<PAGE>   42
 
1978 (collectively, the "Acts"). Numerous questions have been raised concerning
the interpretation and implementation of several significant provisions of the
Acts, as well as the regulations and policies promulgated by FERC thereunder. A
number of lawsuits and administrative proceedings have been instituted which
challenge the validity of regulations implementing the Acts. In addition, as
described below, FERC currently has under consideration various policies and
proposals which will affect the marketing of gas under new and existing
contracts.
 
     Since 1991, FERC's regulatory efforts have centered largely around its
generic rulemaking proceedings, Order No. 636. Through Order No. 636 and
successor orders, FERC has undertaken to restructure the interstate pipeline
industry with the goal of providing enhanced access to, and competition among,
alternative gas suppliers. By requiring interstate pipelines to "unbundle" their
sales services and to provide its customers with direct access to any upstream
pipeline capacity held by pipelines, Order No. 636 has enabled pipeline
customers to choose the levels of transportation and storage service they
require, as well as to purchase gas directly from third-party merchants other
than the pipelines.
 
     Although the implementation of Order No. 636 on individual interstate
pipelines is nearing completion, this process is not yet final. Moreover, nearly
all of these individual restructuring proceedings, as well as Order No. 636
itself and the regulations promulgated thereunder, are subject to pending
appellate review and could possibly be substantially modified by the courts.
Thus, while Order No. 636, if ultimately implemented without substantial change,
should generally facilitate the transportation of gas and the direct access to
end-user markets, the precise impact of these regulations on marketing
production cannot be predicted at this time.
 
     Beyond Order No. 636, FERC is now considering a number of other important
policies, all of which could significantly affect the marketing of gas. Some of
the more notable of these regulatory initiatives include FERC's rulemakings on
gathering and production-area rate design, regulation of pipeline marketing
affiliates under Order No. 497, and standards for pipeline electronic bulletin
boards and electronic data exchange.
 
     The U.S. Congress has historically been active in the area of oil and
natural gas regulation. Although no prediction can be made concerning future
regulation or legislation which may affect the competitive status of the
Company, or affect the prices at which it may sell its oil and gas, any
regulation or legislation that, directly or indirectly, lowers price levels for
oil and gas sold or increases the costs of production could have an adverse
effect on the Company's operations.
 
     Environmental Regulation
 
     Various federal, state and local laws and regulations covering the
discharge of materials into the environment, or otherwise relating to the
protection of the environment, may affect the Company's operations and costs. In
particular, the Company's oil and gas exploration, development, production and
EOR operations, its activities in connection with storage and transportation of
liquid hydrocarbons and its use of facilities for treating, processing,
recovering or otherwise handling hydrocarbons and wastes therefrom are subject
to stringent environmental regulation by governmental authorities. Such
regulation has increased the cost of planning, designing, drilling, installing,
operating and abandoning the Company's oil and gas wells and other facilities.
The Company has expended significant resources, both financial and managerial,
to comply with environmental regulations and permitting requirements and
anticipates that it will continue to do so in the future in order to comply with
stricter industry and regulatory safety standards such as those described below.
Although the Company believes that its operations and facilities are in general
compliance with applicable environmental regulations, risks of substantial costs
and liabilities are inherent in oil and gas operations and there can be no
assurance that significant costs and liabilities will not be incurred in the
future. Moreover, it is possible that other developments, such as increasingly
strict environmental laws, regulations and enforcement policies thereunder, and
claims for damages to property, employees, other persons and the environment
resulting from the Company's operations, could result in substantial costs and
liabilities in the future. Although the resulting costs cannot be accurately
estimated at this time, these requirements and risks typically apply
 
                                       40
<PAGE>   43
 
to companies with types and quantities of production similar to those of the
Company and to the oil and gas industry in general.
 
     Offshore Production.  Offshore oil and gas operations are subject to
regulations of the United States Department of the Interior, the Department of
Transportation, the United States Environmental Protection Agency ("EPA") and
certain state agencies. In particular, the Federal Water Pollution Control Act
of 1972, as amended ("FWPCA"), imposes strict controls on the discharge of oil
and its derivatives into navigable waters. The FWPCA provides for civil and
criminal penalties for any discharges of petroleum in reportable quantities and,
along with the Oil Pollution Act of 1990 and similar state laws, imposes
substantial liability for the costs of oil removal, remediation and damages.
 
     Solid and Hazardous Waste.  The Company currently owns or leases, and has
in the past owned or leased, numerous properties that have been used for
production of oil and gas for many years. Although the Company has utilized
operating and disposal practices that were standard in the industry at the time,
hydrocarbons or other solid wastes may have been disposed or released on or
under the properties owned or leased by the Company. State and federal laws
applicable to oil and gas wastes and properties have gradually become more
strict. Under these new laws, the Company has been, and in the future could be,
required to remove or remediate previously disposed wastes or property
contamination (including groundwater contamination) or to perform remedial
plugging operations to prevent future contamination.
 
     The Company generates hazardous and nonhazardous wastes that are subject to
the federal Resource Conservation and Recovery Act and comparable state
statutes. The EPA has limited the disposal options for certain hazardous wastes
and has recently issued stricter disposal standards for nonhazardous wastes.
Furthermore, it is possible that additional wastes (which could include certain
wastes generated by the Company's oil and gas operations) could in the future be
designated as "hazardous wastes," which are subject to more rigorous and costly
disposal requirements. In response to the changing regulatory environment, the
Company has made certain changes in its operations and disposal practices. For
example, the Company has commenced remediation of sites or replacement of
facilities in some locations where its wastes have previously been disposed.
 
     Superfund.  The Comprehensive Environmental Response, Compensation and
Liability Act ("CERCLA"), also known as the "superfund" law, imposes liability,
without regard to fault or the legality of the original conduct, on certain
classes of persons that contributed to the release of a "hazardous substance"
into the environment. These persons include the owner or operator of a site and
companies that disposed or arranged for the disposal of the hazardous substance
found at a site. CERCLA also authorizes the EPA and, in some cases, third
parties to take actions in responses to threats to the public health or the
environment and to seek to recover from the responsible classes of persons the
costs they incur. In the course of its operations, the Company has generated and
will generate wastes that may fall within CERCLA's definition of "hazardous
substances." The Company may be responsible under CERCLA for all or part of the
costs to clean up sites at which such wastes have been disposed.
 
     The Company has been identified as one of over 250 potentially responsible
parties ("PRPs") at a superfund site in Los Angeles County, California. The site
was operated by a third party as a waste disposal facility from 1948 until 1983.
The EPA is requiring the PRPs to undertake remediation of the site in several
phases, which include site monitoring and leachate control, gas control and
final remediation. In 1989 the EPA and a group of the PRPs entered into a
consent decree covering the site monitoring and leachate control phase of
remediation. The Company is a member of the group that is responsible for
carrying out this first phase of work, which is expected to be completed in five
to eight years. The maximum liability of the group, which is joint and several
for each member of the group, for the first phase is $37.0 million, of which the
Company's share is expected to be approximately $2.4 million ($1.3 million after
recoveries from working interest participants in the unit at which the wastes
were generated) payable over the period that the phase one work is performed.
The EPA and a group of PRPs of which the Company is a member have also entered
into a subsequent consent decree with respect to the second phase of work (gas
control). The liability of this group has not been capped, but is estimated to
be
 
                                       41
<PAGE>   44
 
$130 million. The Company's share of costs for this phase, however, is expected
to be approximately of the same magnitude as that of the first phase because
more parties are involved in the settlement. The Company has provided for costs
with respect to the first two phases, but it cannot currently estimate the cost
of any subsequent phases of work which may be required by the EPA.
 
     In 1989, Adobe received requests from the EPA for information pursuant to
Section 104(e) of CERCLA with respect to the Gulf Coast Vacuum Services and D.
L. Mud superfund sites located in Abbeville, Louisiana. The EPA has issued its
record of decision at the Gulf Coast Site and on February 9, 1993 the EPA issued
to all PRPs at the site a settlement order pursuant to Section 122 of CERCLA. On
December 15, 1993 the Company entered into a cost-sharing agreement with other
PRPs to participate in the final remediation of the Gulf Coast site, which is
presently estimated to cost $15.0 million. The Company's share of the
remediation is approximately $600,000 and reflects its proportionate share of
the "orphans' share" for this site. With respect to the D. L. Mud site, a former
property owner has already conducted remedial activities at the site under a
state agency agreement. To date, the Company has not been requested to share in
the remediation costs. The extent, if any, of any further necessary remedial
activity at, and the prospective PRPs and the Company's financial obligations
for, the D. L. Mud site has not been finally determined.
 
     The Company has received a request for information from the EPA regarding
the Lee Acres Landfill CERCLA site in New Mexico. The Company advised the EPA
that it was not able to locate any information indicating that it had used that
facility. The Company is investigating its potential connection, if any, to this
facility and is not able to estimate its share of costs, if any, for the site at
this time.
 
     On April 4, 1994, the Company received a request from the EPA for
information pursuant to Section 104(a) of CERCLA and a letter ordering the
Company and seven other PRPs to negotiate with the EPA regarding implementation
of a remedial plan for a site located in Sante Fe Springs, California. The
Company owned the property on which the site is located from 1921 to 1932. After
the Company sold the property, hazardous wastes were allegedly disposed there by
a third party who operated a disposal site. The EPA estimates that the total
past and future costs for remediation will approximate $9 million. The Company
believes that it has valid defenses to liability. While it is still
investigating its exposure, if any, for the remedial costs, the Company does not
believe that any such costs would be material.
 
     Air Emissions.  The operations of the Company, including its operations in
the San Joaquin Valley, are subject to local, state and federal regulations for
the control of emissions from sources of air pollution. Legal and regulatory
requirements in this area are increasing, and there can be no assurance that
significant costs and liabilities will not be incurred in the future as a result
of new regulatory developments. In particular, the 1990 Clean Air Act Amendments
will impose additional requirements that may affect the Company's operations,
including permitting of existing sources and control of hazardous air
pollutants. However, it is impossible to predict accurately the effects, if any,
of the Clean Air Act Amendments on the Company at this time. The Company has
been and may in the future be subject to administrative enforcement actions for
failure to comply strictly with air regulations or permits. These administrative
actions are generally resolved by payment of a monetary penalty and correction
of any identified deficiencies. Alternatively, regulatory agencies may require
the Company to forego construction or operation of certain air emission sources.
 
     Other.  The Company is subject to the requirements of the federal
Occupational Safety and Health Act ("OSHA") and comparable state statutes. The
OSHA hazard communication standard, the EPA community right-to-know regulations
under Title III of the federal Superfund Amendment and Reauthorization Act and
similar state statutes (such as California Proposition 65) require the Company
to organize information about hazardous materials used or produced in its
operations. Certain of this information must be provided to employees, state and
local governmental authorities and local citizens. The Company's facilities in
California are also subject to California Proposition 65, which was adopted in
1986 to address discharges and releases of, or exposures to, toxic chemicals in
the environment. Proposition 65 makes it illegal to knowingly discharge a listed
chemical if the chemical will pass (or probably will pass) into any source of
drinking water. It also prohibits companies from knowingly and intentionally
exposing any
 
                                       42
<PAGE>   45
 
individual to such chemicals through ingestion, inhalation or other exposure
pathways without first giving a clear and reasonable warning.
 
     Although generally less stringent, the Company's foreign operations are
subject to similar foreign laws respecting environmental and worker safety
matters.
 
     Insurance Coverage Maintained with Respect to Operations
 
     The Company maintains insurance policies covering its operations in amounts
and areas of coverage normal for a company of its size in the oil and gas
exploration and production industry. These coverages include, but are not
limited to, workers' compensation, employers' liability, automotive liability
and general liability. In addition, an umbrella liability and operator's extra
expense policies are maintained. All such insurance is subject to normal
deductible levels. The Company does not insure against all risks associated with
its business either because insurance is not available or because it has elected
not to insure due to prohibitive premium costs.
 
     Employees
 
     As of December 31, 1993, the Company had approximately 777 employees, 210
of whom were covered by a collective bargaining agreement which expires on
January 31, 1996. The Company believes that its relations with its employees are
satisfactory.
 
     Legal Proceedings
 
     The Company, its subsidiaries and other related companies are named
defendants in several lawsuits and named parties in certain governmental
proceedings arising in the ordinary course of business. For a description of
certain proceedings in which the Company is involved, see
"--Environmental Regulation." While the outcome of lawsuits or other proceedings
against the Company cannot be predicted with certainty, management does not
expect these matters to have a material adverse effect on the financial position
or results of operations of the Company.
 
                                       43
<PAGE>   46
 
                                   MANAGEMENT
 
DIRECTORS AND EXECUTIVE OFFICERS
 
     The current directors and executive officers of the Company and their ages
(as of January 1, 1994) and positions are listed below.
 
<TABLE>
<CAPTION>
              NAME                   AGE                         POSITION
- ---------------------------------    ---     -------------------------------------------------
<S>                                  <C>     <C>
James L. Payne...................    56      Chairman of the Board, President and Chief
                                             Executive Officer
Hugh L. Boyt.....................    48      Senior Vice President--Production
Jerry L. Bridwell................    50      Senior Vice President--Exploration and Land
Keith P. Hensler.................    62      Senior Vice President--Marketing
Richard B. Bonneville............    51      Vice President--Planning and Administration
E. Everett Deschner..............    53      Vice President--Reservoir Engineering and
                                             Evaluation
C. Ed Hall.......................    51      Vice President--Public Affairs
Charles G. Hain, Jr..............    47      Vice President--Employee Relations
David L. Hicks...................    44      Vice President--Law and General Counsel
Michael J. Rosinski..............    48      Vice President and Chief Financial Officer
John R. Womack...................    55      Vice President--Business Development
Rod F. Dammeyer..................    53      Director
Marc J. Shapiro..................    47      Director
William E. Greehey...............    57      Director
Robert F. Vagt...................    47      Director
Melvyn N. Klein..................    52      Director
Robert D. Krebs..................    51      Director
David M. Schulte.................    47      Director
Allan V. Martini.................    66      Director
Michael A. Morphy................    61      Director
Kathryn D. Wriston...............    55      Director
Reuben F. Richards...............    64      Director
</TABLE>
 
     The business experience of the above officers and directors for the past
five years is described below. Unless otherwise stated, all offices were held
with Santa Fe Energy Company prior to its merger with the Company. Each
executive officer holds office until his successor is elected or appointed or
until his earlier death, resignation or removal.
 
     James L. Payne has served as a Director since 1986 and has been Chairman of
the Board, President and Chief Executive Officer of the Company since June 1990.
Mr. Payne was President of Santa Fe Energy Company from January 1986 to January
1990 when he became President of the Company. From 1982 to January 1986 Mr.
Payne was Senior Vice President--Exploration and Land of Santa Fe Energy
Company. Mr. Payne is also a director of Pool Energy Services Co. (oilfield
services) and Hadson (natural gas transportation and marketing).
 
     Hugh L. Boyt has been Senior Vice President--Production since March 1,
1990. From 1989 until March 1990, Mr. Boyt served as Corporate Production
Manager. From 1983, when Mr. Boyt joined the Company, until 1989 he served as
District Production Manager--Permian Basin.
 
     Jerry L. Bridwell has been Senior Vice President--Exploration and Land
since 1986. Mr. Bridwell served in various other capacities, including Vice
President--Exploration, Central Division, since joining the Company in 1974.
 
     Keith P. Hensler has been Senior Vice President--Marketing since January
1990. From 1980, when Mr. Hensler joined the Company, until January 1990, he
served as Vice President--Marketing. Mr. Hensler is also Senior Vice President
of Energy Products.
 
                                       44
<PAGE>   47
 
     Richard B. Bonneville has been Vice President--Planning and Administration
since 1988. Prior to such time Mr. Bonneville served as Secretary of Santa Fe
Pacific Corporation ("SFP").
 
     E. Everett Deschner has been Vice President--Reservoir Engineering and
Evaluation since April 1990. From 1982, when Mr. Deschner joined the Company,
until 1990, he served as Manager-- Engineering and Evaluation.
 
     C. Ed Hall has been Vice President--Public Affairs since March 1991. Prior
to such time Mr. Hall served as Director--Public Affairs since joining the
Company in 1984.
 
     Charles G. Hain, Jr. has been Vice President--Employee Relations since
1988. From 1981, when Mr. Hain joined the Company, until 1988, Mr. Hain served
as Director--Employee Relations.
 
     David L. Hicks has been Vice President--Law and General Counsel since March
1991. From 1988 until March 1991, Mr. Hicks was General Counsel and prior to
that time was General Attorney for SFP.
 
     Michael J. Rosinski has been Vice President and Chief Financial Officer
since September 1992. Prior to joining the Company, Mr. Rosinski was with
Tenneco Inc. and its subsidiaries for 24 years. From 1988 until 1990, Mr.
Rosinski served as Deputy Project Executive for the Colombian Crude Oil Pipeline
Project and from 1990 until August 1992 he was Executive Director of Investor
Relations. Mr. Rosinski is also a director of Hadson (natural gas transportation
and marketing).
 
     John R. Womack has been Vice President--Business Development since 1987.
From 1982, when Mr. Womack joined the Company, until 1987, Mr. Womack served as
Vice President--Land.
 
     Rod F. Dammeyer has served as a Director since 1990. Mr. Dammeyer has been
President and a director since 1985 and Chief Executive Officer since 1993 of
Itel Corporation (holding company involved primarily in distribution of wiring
systems products). Mr. Dammeyer is also a director of Q-Tel S.A., Servicios
Financieros Quadrum, S.A., Lomas Financial Corporation, Jacor Communications,
Inc., Revco D.S., Inc., Capsure Holdings Corp. and the Vigoro Corporation and a
trustee of Van Kampen Merritt Closed-End Mutual Funds. In addition, Mr. Dammeyer
is President, Chief Executive Officer and a director of Great American
Management and Investment, Inc.
 
     Marc J. Shapiro has served as a Director since 1990. Mr. Shapiro has been
Chairman, President and Chief Executive Officer of Texas Commerce Bancshares,
Inc. (banking) since January 1994. He has been President and Chief Executive
Officer of Texas Commerce Bancshares, Inc. since December 1989, Chairman and
Chief Executive Officer of Texas Commerce Bank National Association since 1987
and a member of the Management Committee of Chemical Banking Corporation since
December 1991. Mr. Shapiro was a member of the Office of the Chairman of
Chemical Banking Corporation from August 1990 to December 1991 , Vice Chairman
of Texas Commerce Bancshares, Inc. from 1982 to 1989, and Vice Chairman of Texas
Commerce Bank National Association from 1982 to 1987. Mr. Shapiro is also a
director of Browning-Ferris Industries and a trustee of Weingarten Realty
Investors.
 
     William F. Greehey has served as a Director since 1991. Mr. Greehey has
been Chairman of the Board, Chief Executive Officer and director of Valero
Energy Corporation (refining and marketing, gas transmission and processing)
since 1983. Mr. Greehey is also a director of Weatherford International.
 
     Robert F. Vagt has served as a Director since 1992. Mr. Vagt has been
President, Chief Executive Officer and director of Global Natural Resources Inc.
(oil and gas exploration and production) since May 1992; President and Chief
Operating Officer of Adobe (oil and gas exploration and production) from
November 1990 to May 1992; Executive Vice President of Adobe from August 1987 to
October 1990; and Senior Vice President of Adobe from October 1985 to August
1987. Mr. Vagt is also a director of First Albany Corporation (brokerage firm).
 
     Melvyn N. Klein has served as a Director since February 1993, when he was
elected to fill the vacancy created by the resignation of L.G. Dodd. Mr. Klein
is an Attorney and Counselor at Law, private investor and the sole stockholder
of a general partner in GKH Partners, L.P. Mr. Klein is also a director of Itel
Corporation, American Medical Holdings, Inc. (hospital ownership and
management), Bayou Steel
 
                                       45
<PAGE>   48
 
Corporation (specialty steel manufacturer) and Savoy Pictures Entertainment,
Inc. (distributor of motion pictures).
 
     Robert D. Krebs has served as a Director since 1985. Mr. Krebs has been
Chairman, President and Chief Executive Officer of SFP since 1988. Prior to such
time, Mr. Krebs was President and Chief Operating Officer of SFP. Mr. Krebs is
also a director of SFP, Catellus Development Corporation, the Atchison, Topeka
and Santa Fe Railway Company, Santa Fe Pacific Pipelines, Inc., Phelps Dodge
Corporation and Northern Trust Corporation.
 
     David M. Schulte has served as a Director since February 1994. Mr. Schulte
has been, for the past five years, Managing Partner of Chilmark Partners, L.P.
(investments) and since July 1990, General Partner of ZC Limited Partnership,
the General Partner of Zell/Chilmark Fund, L.P. (investments). Mr. Schulte is
also a director of Carter Hawley Hale Stores, Inc., Revco D.S., Inc., Sealy
Corporation and Jacor Communications, Inc.
 
     Allan V. Martini has served as a Director since 1990. Mr. Martini retired
as Vice President Exploration/Production and director of Chevron Corporation
(petroleum operations) in August 1988. Mr. Martini served in that position from
July 1986 until his retirement.
 
     Michael A. Morphy has served as a Director since 1990. Mr. Morphy has been,
for the past five years, retired Chairman and Chief Executive Officer of
California Portland Cement Company. Mr. Morphy is also a director of Cyprus Amax
Minerals Co. and SFP.
 
     Kathryn D. Wriston has served as a Director since 1990. Ms. Wriston has
been, for the past five years, director of various corporations and
organizations, including Northwestern Mutual Life Insurance Company and a
Trustee of the Financial Accounting Foundation.
 
     Reuben F. Richards has served as a Director since 1992. Mr. Richards has
been Chairman of the Board of Terra Industries Inc. (agribusiness) since
December 1982; Chief Executive Officer of Terra Industries Inc. from December
1982 to May 1991 and President of Terra Industries Inc. from July 1983 to May
1991; Chairman of the Board of Engelhard Corporation (specialty chemicals and
engineered materials) since May 1985; Chairman of the Board of Minorco (U.S.A.)
Inc. ("Minorco (USA)") since May 1990 and Chief Executive Officer and President
of Minorco (USA) since February 1994. Mr. Richards is also a director of Ecolab,
Inc. (cleaning and sanitizing products), Potlatch Corporation (forest products),
and Minorco.
 
                                       46
<PAGE>   49
 
                         DESCRIPTION OF THE DEBENTURES
 
   
     The Debentures will be issued under an indenture to be dated as of May   ,
1994 (the "Indenture"), between the Company and The First National Bank of
Boston, as trustee (the "Trustee"). A copy of the Indenture is filed as an
exhibit to the Registration Statement of which this Prospectus is a part. The
Indenture is subject to and is governed by the Trust Indenture Act of 1939, as
amended (the "TIA"). The following summary of certain provisions of the
Debentures and the Indenture does not purport to be complete and is subject to
and qualified in its entirety by reference to the TIA and all the provisions of
the Debentures and the Indenture, including the definitions therein of certain
terms that are not otherwise defined in this Prospectus. Wherever particular
provisions of the Indenture or terms defined therein are referred to herein,
such provisions or definitions are incorporated herein by reference. References
herein are to articles and sections in the Indenture. All references to the
"Company" in this Section of the Prospectus are to Santa Fe Energy Resources,
Inc., and do not include its subsidiaries.
    
 
GENERAL
 
     The Debentures will mature on           , 2004, and will be limited to an
aggregate principal amount of $100,000,000. The Debentures will bear interest at
the rate set forth on the cover page of this Prospectus from           , 1994
(the "Issue Date"), or from the most recent interest payment date to which
interest has been paid, payable semi-annually on           and           of each
year, beginning on           , 1994, to the person in whose name the Debenture
(or any predecessor Debenture) is registered at the close of business on the
preceding           or           , as the case may be.
 
   
     Principal of, premium, if any, and interest on the Debentures will be
payable, and the Debentures will be exchangeable and transferable, at an office
or agency of the Company, one of which will be maintained for such purpose in
The City of New York (which initially will be the Corporate Trust Office of the
Trustee, at 55 Broadway, 3rd Floor) or such other office or agency permitted
under the Indenture; provided, however, that payment of interest may be made at
the option of the Company by check mailed to the person entitled thereto as
shown on the Security Register. The Debentures will be issued only in fully
registered form without coupons, in denominations of $1,000 or any integral
multiple thereof. No service charge will be made for any registration of
transfer or exchange of Debentures, except for any tax or other governmental
charge that may be imposed in connection therewith.
    
 
     All moneys paid by the Company to a Paying Agent for the payment of the
principal of or any premium or interest on any Debentures that remain unclaimed
at the end of two years after such principal, premium or interest has become due
and payable may be repaid to the Company, and the Holder of such Debenture
thereafter may look only to the Company for payment thereof. (Section 8.04)
 
SUBORDINATION
 
   
     The Debentures will be general unsecured senior subordinated obligations of
the Company. The payment of the principal of, premium, if any, and interest on,
the Debentures will be subordinated in right of payment, as set forth in the
Indenture, to the payment when due in cash of all Senior Indebtedness of the
Company. However, payment from the money or the proceeds of U.S. Government
Obligations held in any defeasance trust will not be subordinate to any Senior
Indebtedness or subject to the restrictions described herein. The Debentures
will rank subordinate in right of payment to all existing and future Senior
Indebtedness (as defined), pari passu with any future senior subordinated
indebtedness and senior to any future junior subordinated indebtedness of the
Company. At March 31, 1994, after giving effect to the application of the
proceeds of the Offerings, the pro forma amount of Senior Indebtedness
outstanding would have been $276.0 million. The Debentures will be structurally
subordinated to all liabilities of the Company's subsidiaries, which would have
totaled $54.0 million at March 31, 1994, after giving effect to the application
of the proceeds of the Offerings. The amounts referred to above include only
liabilities included on the Company's consolidated balance sheet under GAAP; the
Company and its subsidiaries have other liabilities, including contingent
liabilities, which may be significant. Although the Indenture contains
limitations on the amount of additional Indebtedness that the Company and its
    
 
                                       47
<PAGE>   50
 
subsidiaries may incur, the amounts of such Indebtedness could be substantial
and, in any case, such Indebtedness may be Senior Indebtedness or Indebtedness
of subsidiaries (to which the Debentures will be structurally subordinated). See
"--Certain Covenants-Limitation on Indebtedness" below.
 
   
     The Company may not pay principal of, premium, if any, or interest on, the
Debentures or make any deposit pursuant to the provisions described under
"--Defeasance and Covenant Defeasance" below and may not repurchase, redeem or
otherwise retire any Debentures, including pursuant to the obligation described
below under "--Mandatory Repurchase upon Change of Control and Subsequent Rating
Decline" (collectively, "pay the Debentures"), if (a) any principal, premium or
interest (including interest (if any) occurring on or after the commencement of
a proceeding in bankruptcy) in respect of any Senior Indebtedness is due and
payable and is not paid within any applicable grace period (including at
maturity) or (b) any other default on Senior Indebtedness occurs and the
maturity of such Senior Indebtedness is accelerated in accordance with its terms
unless, in either case, the default has been cured or waived and any such
acceleration has been rescinded or such Senior Indebtedness has been paid in
full; provided, however, that the Company may pay the Debentures without regard
to the foregoing if the Company and the Trustee receive written notice approving
such payment from the Representative of each issue of Designated Senior
Indebtedness. During the continuance of any default (other than a default
described in clause (a) or (b) of the preceding sentence) with respect to any
Senior Indebtedness pursuant to which the maturity thereof may be accelerated
immediately without further notice (except such notice as may be required to
effect such acceleration), the Company may not pay the Debentures for a period
(a "Payment Blockage Period") commencing upon the receipt by the Company and the
Trustee of written notice of such default from the Representative to the holders
of any Designated Senior Indebtedness specifying an election to effect a Payment
Blockage Period (a "Payment Blockage Notice") and ending 179 days thereafter
(unless earlier terminated (i) by written notice to the Trustee and the Company
from the Representative that submitted such Payment Blockage Notice, (ii)
because such default is no longer continuing or (iii) because the Senior
Indebtedness in respect of which such Blockage Notice was given has been repaid
in full in cash). Notwithstanding the provisions described in the immediately
preceding sentence, unless the holders of such Senior Indebtedness or the
Representative of such holders have accelerated the maturity of such Senior
Indebtedness and not rescinded such acceleration, the Company may (unless
otherwise prohibited as described in the first sentence of this paragraph)
resume payments on the Debentures after the end of such Payment Blockage Period.
Not more than one Payment Blockage Notice may be given in any consecutive
360-day period, irrespective of the number of defaults with respect to any
number of issues of Senior Indebtedness during such period. (Section 10.03)
    
 
     Upon any payment or distribution of the assets of the Company upon a total
or partial liquidation, dissolution or winding up of the Company or in a
bankruptcy, reorganization, insolvency, receivership or similar proceeding
relating to the Company or its property, the holders of Senior Indebtedness will
be entitled to receive payment in full in cash of the Senior Indebtedness before
the Holders of the Debentures are entitled to receive any payment of principal
of, or premium, if any, or interest on, the Debentures. In addition, until the
Senior Indebtedness is paid in full, any distribution to which Holders of
Debentures would be entitled but for the subordination provisions of the
Indenture will be made to holders of the Senior Indebtedness, except that
Holders of Debentures may receive and retain shares of stock and any debt
securities that are subordinated to Senior Indebtedness to at least the same
extent as the Debentures. (Section 10.02)
 
     By reason of such subordination provisions contained in the Indenture, in
the event of bankruptcy, insolvency or winding up, creditors of the Company who
are holders of Senior Indebtedness may recover more, ratably, than the Holders
of the Debentures, and creditors of the Company who are not holders of Senior
Indebtedness or the Debentures may recover less, ratably, than holders of Senior
Indebtedness and may recover more, ratably, than the Holders of the Debentures.
 
     Claims of creditors of the Company's subsidiaries, including trade
creditors, and holders of Preferred Stock of the Company's subsidiaries (if
any), will generally have a priority as to the assets of such subsidiaries over
the claims of the Company and the holders of the Company's Indebtedness. Under
the
 
                                       48
<PAGE>   51
 
Indenture, and subject to certain limitations, Indebtedness may be incurred by
subsidiaries of the Company.
 
OPTIONAL REDEMPTION
 
     Except as provided below, the Debentures are not redeemable prior to
          , 1999. At any time on or after           , 1999, the Debentures are
redeemable at the option of the Company, in whole or from time to time in part,
on not less than 30 nor more than 60 days' notice, at the following redemption
prices (expressed as percentages of principal amount), plus accrued and unpaid
interest (if any) to the date of redemption.
 
     If redeemed during the 12-month period commencing           :
 
<TABLE>
<CAPTION>
            YEAR                                                   REDEMPTION PRICE 
            ----                                                   ---------------- 
            <S>                                                              <C> 
            1999................................................             %
            2000................................................             %
            2001................................................             %
</TABLE>
 
and thereafter, beginning           , 2002, at 100% of the principal amount of
the Debentures plus accrued and unpaid interest (if any) to the date of
redemption.
 
SINKING FUND
 
     There will be no mandatory sinking fund payments for the Debentures.
 
MANDATORY REPURCHASE UPON CHANGE OF CONTROL AND SUBSEQUENT RATING DECLINE
 
   
     Upon the occurrence of a Change of Control and a subsequent Rating Decline,
the Company will, within 30 days after the occurrence of such Rating Decline,
notify each Holder of the Debentures, with a copy of such notice to the Trustee,
in writing of the occurrence of the Change of Control and accompanying such
notice will be an offer to purchase (the "Change of Control Offer") the
Debentures at a purchase price equal to 101% of the principal amount thereof,
plus accrued and unpaid interest, if any, due thereon to the Change of Control
Purchase Date (as defined below) (such price, together with such interest, the
"Change of Control Purchase Price") on or before the date specified in such
notice, which date shall be no earlier than 30 days nor later than 60 days from
the date such notice is mailed (the "Change of Control Purchase Date"). The
Change of Control Offer will remain open from the time such offer is made until
the Change of Control Purchase Date. The Company will purchase all Debentures
properly tendered in the Change of Control Offer and not withdrawn in accordance
with the procedures set forth in such notice. The Change of Control Offer will
state, among other things, the procedures that holders of the Debentures must
follow to accept the Change of Control Offer.
    
 
     The occurrence of certain of the events which would constitute a Change of
Control could constitute a default under the Company's existing and future
indebtedness. In addition, the exercise by the holders of the Debentures of
their right to require the Company to repurchase the Debentures could cause a
default under existing or future indebtedness, even if the Change of Control
itself does not, due to the financial effect of such repurchase on the Company.
Finally, if a Change of Control Offer is made, there can be no assurance that
the Company will have sufficient funds or other resources to pay the Change of
Control Purchase Price for all the Debentures that might be delivered by Holders
thereof seeking to accept the Change of Control Offer.
 
     The Change of Control provisions described above may deter certain mergers,
tender offers and other takeover attempts involving the Company and, thus, the
removal of incumbent management. The Change of Control provisions will not
prevent a change in a majority of the members of the Board of Directors of the
Company which is approved by a majority of the then-present Board of Directors
of the Company. One of the events that constitutes a Change of Control under the
Indenture is a sale,
 
                                       49
<PAGE>   52
 
conveyance, transfer or lease of all or substantially all the property of the
Company and its Subsidiaries, taken as a whole. The phrase "all or substantially
all" is subject to judicial interpretation depending on the facts and
circumstances of the subject transaction. The Indenture will be governed by New
York law, and there is no established quantitative definition under New York law
of "substantially all" the assets of a corporation. Accordingly, in certain
circumstances it may be unclear whether a Change of Control has occurred and
whether the Company may therefore be required to make a Change of Control Offer.
 
     The Company will comply, to the extent applicable, with the requirements of
Section 14(e) of the Exchange Act and any other securities laws or regulations
in connection with the repurchase of Debentures pursuant to any Change of
Control Offer. To the extent that the provisions of any securities laws or
regulations conflict with provisions relating to the Change of Control Offer,
the Company will comply with the applicable securities laws and regulations and
will not be deemed to have breached its obligations under the Change of Control
covenant by virtue thereof. (Section 4.08)
 
CERTAIN COVENANTS
 
   
     Limitation on Indebtedness.  The Company will not, and will not permit any
of its Restricted Subsidiaries to, directly or indirectly, Incur any
Indebtedness unless (i) no Default or Event of Default shall have occurred and
be continuing at the time of such Incurrence or would occur as a consequence of
such Incurrence and (ii) such Indebtedness is Permitted Indebtedness.
    
 
   
     Permitted Indebtedness means any and all of the following: (a) Indebtedness
Incurred if, after giving pro forma effect to the Incurrence of such
Indebtedness and the receipt and application of the proceeds thereof, the
Consolidated Interest Coverage Ratio exceeds 3.0 to 1.0; (b) Indebtedness
evidenced by the Debentures; (c) Indebtedness under Bank Credit Facilities but
only to the extent that the aggregate principal amount of all such Indebtedness
under Bank Credit Facilities equals or is less than $175 million (subject to
adjustment as described in the "Limitation on Sales of Assets" covenant); (d)
Indebtedness under Interest Rate Protection Agreements, provided that the
obligations under such agreements are related to payment obligations on
Indebtedness otherwise permitted by the terms of this covenant; (e) Indebtedness
to the Company or any Restricted Subsidiary by any of its Restricted
Subsidiaries or Indebtedness of the Company to any of its Restricted
Subsidiaries, provided, however, that any subsequent issuance or transfer of any
Capital Stock which results in any such Restricted Subsidiary ceasing to be a
wholly owned Subsidiary or any subsequent transfer of any such Indebtedness
(except to the Company or any Restricted Subsidiary) will be deemed, in each
case, to constitute the incurrence of such Indebtedness by the issuer thereof;
(f) Capital Expenditure Indebtedness (provided that the principal amount of such
Indebtedness does not exceed the fair market value of the property or asset with
respect to which such expenditure is made, such fair market value to be
determined after giving effect to such expenditure) but only to the extent the
aggregate principal amount of all Capital Expenditure Indebtedness Incurred
under this clause (f) during any calendar year equals or is less than $160
million; (g) Indebtedness under Oil and Gas Purchase and Sale Contracts,
provided that such contracts were entered into for the purpose of limiting risks
that arise in connection with the sale of oil and gas produced by the Company
and its Subsidiaries in the ordinary course of business; (h) Indebtedness of any
Person which shall merge into or consolidate with the Company in accordance with
the "Merger, Consolidation and Sale of Assets" covenant, which Indebtedness was
not Incurred in anticipation of such merger or consolidation and was outstanding
prior to such merger or consolidation; (i) Indebtedness in connection with one
or more standby letters of credit, Guarantees or performance bonds issued in the
ordinary course of business and not in connection with the borrowing of money or
the obtaining of advances or credit (other than advances or credit on open
account, includable in current liabilities, for goods and services in the
ordinary course of business and on terms and conditions which are customary in
the Oil and Gas Business and other than the extension of credit represented by
such letter of credit, Guarantee or performance bond itself); (j) Indebtedness
not otherwise permitted to be Incurred pursuant to this paragraph, provided that
the aggregate principal amount of all Indebtedness Incurred pursuant to this
clause (j) does not exceed $50 million; (k) Indebtedness outstanding on the date
of the Indenture; (l) Indebtedness Incurred in exchange for, or the proceeds of
which are used to refinance,
    
 
                                       50
<PAGE>   53
 
Indebtedness referred to in clauses (a) through (k) of this paragraph or
Indebtedness previously incurred pursuant to this clause (l), provided that (i)
such Indebtedness is in an aggregate principal amount not in excess of the
aggregate principal amount then outstanding of the Indebtedness being exchanged
or refinanced, (ii) such Indebtedness has a Stated Maturity no earlier than the
Stated Maturity of the Indebtedness being exchanged or refinanced, (iii) such
Indebtedness has an Average Life at the time such Indebtedness is Incurred that
is equal to or greater than the Average Life of the Indebtedness being exchanged
or refinanced and (iv) such Indebtedness is subordinated in right of payment to
Senior Indebtedness or the Debentures to at least the same extent, if any, as
the Indebtedness being exchanged or refinanced; and (m) accounts payable or
other obligations of the Company or any Restricted Subsidiary to trade creditors
created or assumed by the Company or such Restricted Subsidiary in the ordinary
course of business in connection with the obtaining of goods or services. The
Company and its Restricted Subsidiaries may Incur Indebtedness under a single
debt facility or instrument in reliance on two or more of the aforementioned
clauses of the definition of Permitted Indebtedness. (Section 4.03)
 
     Limitation on Liens.  The Company will not, directly or indirectly, Incur
any Lien on or with respect to any Property of the Company or any interest
therein or any income or profits therefrom, unless the Debentures are secured
equally and ratably with (or prior to) any and all other obligations secured by
such Lien, except that the Company may without restriction Incur Liens securing
Senior Indebtedness and except for: (a) any Lien existing on any Property of a
Person at the time such Person is merged or consolidated with or into the
Company (and not Incurred in anticipation of such transaction), provided that
such Liens are not extended to other Property of the Company; (b) any Lien
existing on any Property at the time of the acquisition thereof (and not
Incurred in anticipation of such transaction); (c) any Lien incidental to the
normal conduct of the business of the Company or the ownership of its property
or the conduct in the ordinary course of its business (including without
limitation (i) easements, rights of way and similar encumbrances, (ii) rights of
lessees or lessors under leases, (iii) rights of collecting banks having rights
of setoff, revocation, refund or chargeback with respect to money or instruments
of the Company on deposit with or in the possession of such banks, (iv) Liens
imposed by law, including without limitation mechanics', carriers',
warehousemen's, materialmen's, suppliers' and vendors' Liens, (v) Oil and Gas
Liens, and (vi) Liens incurred to secure performance of bids, tenders, contracts
(other than contracts for the payment or repayment of money), statutory or
regulatory requirements, performance or return-of-money bonds, surety bonds or
other obligations of a like nature and incurred in a manner consistent with
industry practice) in each case which are not Incurred in connection with the
borrowing of money, the obtaining of advances or credit (other than the
extension of credit represented by such bond or other instrument) or the payment
of the deferred purchase price of Property and which do not in the aggregate
impair in any material respect the use of Property in the operation of the
business of the Company and its Restricted Subsidiaries taken as a whole; (d)
Liens for taxes not yet due or which are being contested in good faith by
appropriate proceedings, so long as reserves have been established to the extent
required by GAAP; (e) Liens existing as of the date of the Indenture; and (f)
Liens to secure any permitted extension, renewal, refinancing, refunding or
exchange (or successive extensions, renewals, refinancings, refundings or
exchanges), in whole or in part, of or for any Indebtedness secured by Liens
referred to in the foregoing clauses (a) through (e), provided that such Liens
do not extend to any other Property and the principal amount of the Indebtedness
secured by such Liens is not increased. (Section 4.11)
 
     Limitation on Restricted Payments.  The Company will not, and will not
permit any Restricted Subsidiary to, directly or indirectly, (i) declare or pay
any dividend on, or make any distribution on or in respect of, its Capital Stock
or Redeemable Stock (including any such payment (other than payments solely in
its Capital Stock or in options, warrants or other rights to purchase its
Capital Stock) in connection with any merger or consolidation involving the
Company), except dividends or distributions payable solely in its Capital Stock
or in options, warrants or other rights to purchase such Capital Stock and
except dividends or distributions payable solely to the Company or any
Restricted Subsidiary, (ii) purchase, redeem or otherwise acquire for value any
Capital Stock or Redeemable Stock of the Company or any Restricted Subsidiary
held by Persons other than the Company or any Restricted
 
                                       51
<PAGE>   54
 
   
Subsidiary, (iii) make any principal payment on, or redeem, purchase,
repurchase, defease or otherwise acquire or retire for value prior to any
scheduled repayment, scheduled sinking fund payment or other scheduled maturity,
any Indebtedness that is subordinated in right of payment to the Debentures or
(iv) make any Investment in any Person (any such dividend, distribution,
purchase, redemption, repurchase, defeasance, other acquisition, retirement or
Investment being herein referred to as a "Restricted Payment"), unless at the
time of and after giving effect to the proposed Restricted Payment (a) no
Default or Event of Default shall have occurred and be continuing under the
Indenture, (b) the Company could Incur at least $1.00 of additional Indebtedness
under clause (a) of the definition of "Permitted Indebtedness" and (c) the
aggregate amount of such Restricted Payment and all other Restricted Payments
(the amount so expended, if other than in cash, to be determined in good faith
by the Board of Directors of the Company, whose determination shall be evidenced
by a resolution of such Board) declared or made since the date of the Indenture,
would not exceed, without duplication, the sum of (1) 50% of the Consolidated
Adjusted Net Income accrued during the period (treated as one accounting period)
from the quarter end on or before the date of the Indenture, to the end of the
Company's most recent fiscal quarter immediately preceding such proposed
Restricted Payment (or, if such Consolidated Adjusted Net Income shall be a
deficit, minus 50% of such deficit), (2) the aggregate net proceeds, including
cash and the Fair Market Value of Property other than cash, received by the
Company from the issue or sale of its Capital Stock (including pursuant to the
exercise of options or warrants or the making of any equity contribution by
stockholders of the Company subsequent to the date of the Indenture (other than
an issuance or sale to a Subsidiary of the Company or any employee stock
ownership plan or other trust established by the Company or any of its
Subsidiaries), (3) the amount by which the Indebtedness of the Company or any
Restricted Subsidiary is reduced on the Company's balance sheet upon the
conversion or exchange (other than by a Subsidiary of the Company), subsequent
to the date of the Indenture, of any Indebtedness or Redeemable Stock of the
Company or any Restricted Subsidiary into or for Capital Stock of the Company
(less the amount of any cash (other than interest on such Indebtedness accrued
and unpaid to the date of such conversion or exchange) or other property
distributed by the Company or any Restricted Subsidiary upon such conversion or
exchange) and (4) $50 million.
    
 
     Any payments made pursuant to clauses (a) through (f) of the definition of
"Permitted Investment" shall be excluded for purposes of any calculation of the
aggregate amount of Restricted Payments. Any payments made pursuant to clauses
(g), (h) and (i) of the definition of "Permitted Investment" shall be included
for purposes of any calculation of the aggregate amount of Restricted Payments.
 
     The foregoing limitations will not prevent the Company or any Restricted
Subsidiary from (a) paying a dividend on its Capital Stock within 60 days after
declaration thereof if, on the declaration date, such dividend could have been
paid in compliance with the Indenture or (b) making Permitted Investments, so
long as no Default or Event of Default shall have occurred and be continuing.
 
   
     Notwithstanding the provisions of the preceding three paragraphs, during
any period of time that (i) the ratings assigned to the Debentures by both
Rating Agencies are equal to or higher than BBB -- and Baa3, respectively (the
"Investment Grade Ratings"), and (ii) no Event of Default or Default has
occurred and is continuing, the Company and its Restricted Subsidiaries will not
be subject to the provisions of the "Limitation on Restricted Payments" covenant
that limit Restricted Payments (the "Suspended Covenant"). In the event that the
Company is not subject to the Suspended Covenant for any period of time as a
result of the preceding sentence and, subsequently, one or both Rating Agencies
withdraws its rating or downgrades the rating below the required Investment
Grade Ratings, then the Company and its Restricted Subsidiaries will again be
subject to the Suspended Covenant and compliance with the Suspended Covenant
with respect to Restricted Payments made after the time of such withdrawal or
downgrade will be calculated in accordance with the terms of the Suspended
Covenant as if such covenant had been in effect during the entire period of time
from the date of the Indenture. (Section 4.04)
    
 
     Limitation on Issuance and Sale of Capital Stock of Restricted
Subsidiaries.  The Company will not (a) permit any Restricted Subsidiary to
issue any Capital Stock or Redeemable Stock other than to the
 
                                       52
<PAGE>   55
 
   
Company or one of its Restricted Subsidiaries; provided, however, that any
subsequent issuance or transfer of any Capital Stock that results in any such
Restricted Subsidiary ceasing to be a Restricted Subsidiary or any subsequent
transfer of any such Capital Stock (except to the Company or any Restricted
Subsidiary) will, in each case, be deemed for purposes of the Indenture to
constitute the issuance of such Capital Stock by the issuer thereof or (b)
permit any Person (other than the Company or a Restricted Subsidiary) to own any
Capital Stock of a Restricted Subsidiary (other than directors' qualifying
shares); provided, however, that clauses (a) and (b) will not prohibit a sale of
100% of the Capital Stock of a Restricted Subsidiary owned by the Company or a
Restricted Subsidiary effected in accordance with the "Limitation on Asset
Sales" covenant. (Section 4.13)
    
 
     Incurrence of Layered Indebtedness.  The Company will not Incur any
Indebtedness which is subordinate or junior in right of payment to any Senior
Indebtedness unless such Indebtedness constitutes Indebtedness that is junior
to, or pari passu with, the Debentures in right of payment. (Section 4.14)
 
     Transactions with Affiliates.  The Company will not, and will not permit
any of its Restricted Subsidiaries to, directly or indirectly, conduct any
business or enter into any transaction or series of transactions (including, but
not limited to, the sale, transfer, disposition, purchase, exchange or lease of
Property, the making of any Investment, the giving of any Guarantee or the
rendering of any service) with or for the benefit of any Affiliate of the
Company, unless (i) an Officer will have determined, in his good faith judgment,
that such transaction or series of transactions is in the best interest of the
Company or such Restricted Subsidiary, and on terms no less favorable to the
Company or such Restricted Subsidiary than those that could be obtained in a
comparable arm's-length transaction with a Person that is not an Affiliate of
the Company, and the Company delivers an Officers' Certificate to the Trustee to
that effect, (ii) with respect to a transaction or series of transactions
involving aggregate payments by the Company or such Restricted Subsidiary having
a Fair Market Value equal to or in excess of $10 million, the Board of Directors
of the Company (including a majority of the disinterested Directors) approves
such transaction or series of transactions and determines, in its good faith
judgment, that such transaction or series of transactions complies with the
standards set forth in clause (i) of this paragraph, and the Company delivers a
certified resolution to the Trustee to that effect and (iii) with respect to a
transaction or series of transactions involving aggregate payments by the
Company or such Restricted Subsidiary having a Fair Market Value equal to or in
excess of $25 million, the Company receives the written opinion of a nationally
recognized investment banking firm or other nationally recognized expert having
sufficient expertise to the effect that such transaction (or series of
transactions) is fair to the Company from a financial point of view, which
opinion shall be delivered promptly to the Trustee. With respect to any capital
contribution to, or transaction with, a Subsidiary, the requirement that a
transaction be on "terms no less favorable to the Company or such Restricted
Subsidiary than those that could be obtained in a comparable arm's length
transaction with a Person that is not an Affiliate of the Company" shall be
satisfied if such transaction is fair, from a financial point of view, to the
Company.
 
     The limitations of the preceding paragraph do not apply to (i) transactions
with Affiliates in accordance with the terms of agreements as in effect on the
date of the Indenture (and not otherwise in violation of the Indenture) provided
that any renewal or modification of the terms of any such agreement after the
date of the Indenture shall comply with the preceding paragraph, or (ii)
transactions with Restricted Subsidiaries. The requirements of clause (iii) of
the preceding paragraph shall not apply (i) to a transaction that constitutes a
Permitted Business Investment if none of the parties to such transaction (other
than the Company, the Restricted Subsidiary (if any) making such Permitted
Business Investment, other Restricted Subsidiaries of the Company and the entity
(if any) receiving such Permitted Business Investment) (x) are Affiliates of the
Company or (y) were during the preceding 12 months, or are expected during the
following 12 months to be, associated with more than 10% of the net oil and gas
production of the Company and its Subsidiaries (whether by reason of purchases
of oil and gas or any kind of shared or cooperative production arrangements) or
(ii) to additional sales of or commitments to sell to Hadson natural gas on
terms no less favorable to the Company than those obtained as of the date of the
Indenture pursuant to the Hadson Agreement (Section 4.07)
 
                                       53
<PAGE>   56
 
     Limitation on Sales of Assets.  The Company will not, and will not permit
any Restricted Subsidiary to, make any Asset Sale unless (i) the Company or such
Restricted Subsidiary, as the case may be, receives consideration at the time of
such Asset Sale at least equal to the Fair Market Value of the shares and assets
subject to such Asset Sale, (ii) all of the consideration paid to the Company or
such Restricted Subsidiary in connection with such Asset Sale is in the form of
cash, cash equivalents, Liquid Securities or the assumption by the purchaser of
liabilities other than Subordinated Indebtedness (provided, however, that (x)
the Fair Market Value of oil and gas properties with proved reserves received by
the Company or a Restricted Subsidiary in trade for other such properties (and,
if the assets traded by the Company or a Restricted Subsidiary consist of
properties without proved reserves, the Fair Market Value of properties with or
without proved reserves received in exchange for such traded properties) shall
be treated as cash for purposes of this clause (ii) and (y) the Company and its
Restricted Subsidiaries shall be permitted to receive securities other than cash
equivalents or Liquid Securities with an aggregate Fair Market Value (measured
as of the date of the then-proposed Asset Sale) not in excess of: (1) in
connection with any one or series of related Asset Sales, 10% of Consolidated
Net Tangible Assets and (2) when considered with all other such securities
received in connection with Asset Sales after the date of the Indenture and held
by the Company or a Restricted Subsidiary as of the date of the determination,
25% of Consolidated Net Tangible Assets) and (iii) the Company delivers an
Officers' Certificate to the Trustee certifying that such Asset Sale complies
with clauses (i) and (ii).
 
   
     The Net Available Cash from Asset Sales may (but need not) be applied by
the Company or a Restricted Subsidiary to the extent the Company or such
Restricted Subsidiary elects (or is required by the terms of any Senior
Indebtedness), (A) to prepay, repay or purchase Senior Indebtedness or
Indebtedness (other than Redeemable Stock) of a Restricted Subsidiary (in each
case excluding Indebtedness owed to the Company or an Affiliate of the Company);
(B) to reinvest in Additional Assets (including by means of an Investment in
Additional Assets by a Restricted Subsidiary with Net Available Cash received by
the Company or another Restricted Subsidiary); or (C) to purchase Debentures
(excluding Debentures owned by the Company or an Affiliate of the Company).
    
 
     Any Net Available Cash from an Asset Sale not applied in accordance with
the preceding paragraph within 360 days from the date of such Asset Sale shall
constitute "Excess Proceeds." When the aggregate amount of Excess Proceeds
exceeds $10 million, the Company will be required to purchase Debentures
tendered pursuant to an offer by the Company for Debentures (the "Prepayment
Offer") at a purchase price of at least 100% of their principal amount plus
accrued and unpaid interest thereon (if any) to the Purchase Date (as defined
below) in accordance with the procedures (including prorating in the event of
oversubscription) set forth in the Indenture. To the extent that any portion of
the amount of Net Available Cash remains after compliance with the preceding
sentence and provided that all Holders of Debentures have been given the
opportunity to tender their Debentures for repurchase as described in the
following paragraph in accordance with the Indenture, the Company or such
Restricted Subsidiary may use such remaining amount for general corporate
purposes and the amount of Excess Proceeds will be reset to zero.
 
     Promptly, and in any event within 10 days after the Company becomes
obligated to make a Prepayment Offer, the Company will deliver to the Trustee
and send to each holder of the Debentures a written notice stating that such
holder may elect to have its Debentures purchased by the Company, either in
whole or in part (subject to prorationing in the event the Prepayment Offer is
oversubscribed) and in integral multiples of $1,000 of principal amount, at the
applicable purchase price. The notice will specify a purchase date not less than
30 days nor more than 60 days after the date of such notice (the "Purchase
Date") and will contain information concerning the business of the Company which
the Company in good faith believes will enable such holder to make an informed
decision and will contain all instructions and materials necessary to tender
Debentures pursuant to the Prepayment Offer and the procedures for withdrawing
such a tender (such procedures as set forth in the Indenture).
 
     The Company will comply, to the extent applicable, with the requirements of
Section 14(e) of the Exchange Act and any other securities laws or regulations
in connection with the repurchase of
 
                                       54
<PAGE>   57
 
Debentures as described above. To the extent that the provisions of any
securities laws or regulations conflict with provisions relating to the
Prepayment Offer, the Company will comply with the applicable securities laws
and regulations and will not be deemed to have breached its obligations
described above by virtue thereof.
 
   
     In connection with any prepayment, repayment or purchase of Indebtedness
pursuant to clause (A) or (C) or an offer to repurchase Debentures using Excess
Proceeds, the Company or such Restricted Subsidiary will permanently retire such
Indebtedness and, if the Indebtedness permanently retired constitutes
Indebtedness under a Bank Credit Facility, then the amount of Indebtedness
permitted under clause (c) of the definition of "Permitted Indebtedness" shall
thereafter be deemed to have been permanently reduced by the amount of such
retirement; provided, however, that notwithstanding any permanent retirement of
Indebtedness under a Bank Credit Facility in accordance with this provision, the
related loan commitment (if any) need not be reduced and the Company may
continue to Incur Indebtedness pursuant to such commitment to the extent
permitted under such clause (c) (as so reduced) and/or under any other clause of
the definition of "Permitted Indebtedness." Pending application of Net Available
Cash pursuant to this provision, such Net Available Cash will be invested in
Permitted Short Term Investments or will be applied temporarily to reduce
amounts outstanding under one or more revolving credit facilities of the Company
or its Restricted Subsidiaries. (Section 4.06)
    
 
     Limitation on Restrictions on Distributions from Restricted
Subsidiaries.  The Company will not and will not permit any of its Restricted
Subsidiaries to, directly or indirectly, create or otherwise cause or suffer to
exist or become effective, or enter into any agreement with any person that
would cause to become effective, any consensual encumbrance or restriction on
the legal right of any Restricted Subsidiary to (a) pay dividends, in cash or
otherwise, or make any other distributions on or in respect of its Capital Stock
or Redeemable Stock or any other interest in, or measured by, its profits owned
by, or pay any Indebtedness or other obligation owed to, the Company or any
other Restricted Subsidiary of the Company, (b) make any loans or advances to
the Company or any other Restricted Subsidiary or (c) transfer any of its
property or assets to the Company or any other Restricted Subsidiary. Such
limitation will not apply (1) with respect to clauses (b) and (c) of the
preceding sentence only, to encumbrances and restrictions (i) in existence under
or by reason of any agreements in effect on the date of the Indenture, (ii)
existing at such Subsidiary at the time it became a Restricted Subsidiary of the
Company if (A) such encumbrance or restriction was not created in anticipation
of such Subsidiary becoming a Restricted Subsidiary of the Company and (B)
immediately following such Subsidiary becoming a Restricted Subsidiary of the
Company, on a pro forma basis, the Company could Incur at least $1.00 of
additional Indebtedness pursuant to clause (a) of the second paragraph of
"--Limitation on Indebtedness" or (iii) which result from the renewal,
refinancing, extension or amendment of an agreement referred to in the
immediately preceding clause (i) or (ii) provided such replacement or
encumbrance or restriction is no more restrictive to the Company or any
Restricted Subsidiary and is released or removed by its terms no later than that
which it replaced, (2) with respect to clause (c) of the preceding sentence
only, to restrictions in the form of Liens that are not prohibited as described
under "Limitation on Liens" and which contain customary limitations on the
transfer of collateral and (3) with respect to clauses (a), (b) and (c) of the
preceding sentence, to encumbrances and restrictions on a Restricted Subsidiary
so long as (x) such Restricted Subsidiary (together with all other Restricted
Subsidiaries subject to encumbrances or restrictions permitted under this clause
(3)) does not, during the four full fiscal quarters immediately prior to the
incurrence of such encumbrance or restriction, represent 10% or more of the
EBITDA of the Company during such period and (y) at the date of the incurrence
of such encumbrance or restriction (after giving pro forma effect to the
exclusion of such Restricted Subsidiary from the calculation of the Consolidated
Interest Coverage Ratio) the Company could Incur at least $1.00 of additional
Indebtedness pursuant to clause (a) of the definition of "Permitted
Indebtedness". (Section 4.05)
 
     Restricted and Unrestricted Subsidiaries.  The Board of Directors of the
Company may designate any Subsidiary of the Company or any Restricted Subsidiary
to be an Unrestricted Subsidiary if (i) the Subsidiary to be so designated does
not own any Capital Stock, Redeemable Stock or Indebtedness of,
 
                                       55
<PAGE>   58
 
   
or own or hold any Lien on any property of, the Company or any other Restricted
Subsidiary of the Company, (ii) the Subsidiary to be so designated is not
obligated by any Indebtedness or Lien that, if in default, would result (with
the passage of time or notice or otherwise) in a default on any Indebtedness of
the Company or any Restricted Subsidiary, and (iii) either (A) the Subsidiary to
be so designated has total assets of $1,000 or less, or (B) such designation is
effective immediately upon such Person becoming a Subsidiary of the Company or
of a Restricted Subsidiary. Unless so designated as an Unrestricted Subsidiary,
any Person that becomes a Subsidiary of the Company or any Restricted Subsidiary
will be classified as a Restricted Subsidiary. Except as provided in the first
sentence of this paragraph, no Restricted Subsidiary may be redesignated as an
Unrestricted Subsidiary. An Unrestricted Subsidiary may not be redesignated as a
Restricted Subsidiary.
    
 
     Any such designation by the Board of Directors of the Company will be
evidenced to the Trustee by promptly filing with the Trustee a copy of the
resolution of such Board giving effect to such designation and an Officers'
Certificate certifying that such designation complies with the foregoing
provisions. (Section 4.12)
 
MERGER, CONSOLIDATION AND SALE OF ASSETS
 
   
     The Company will not merge or consolidate with or into any other entity
(other than a merger or consolidation of a Restricted Subsidiary into the
Company) or sell, transfer, assign, lease, convey or otherwise dispose of all or
substantially all of its Property to any Person, unless (a) the entity formed by
or surviving any such consolidation or merger (if the Company is a party to the
transaction and is not the surviving entity) or to which such sale, transfer or
conveyance is made (the "Surviving Entity") shall be an entity organized and
existing under the laws of the United States of America or a State thereof or
the District of Columbia and such Surviving Entity expressly assumes, by
supplemental indenture satisfactory to the Trustee, executed and delivered to
the Trustee by such Surviving Entity, the due and punctual payment of the
principal of, premium, if any, and interest on all the Debentures, according to
their tenor, and the due and punctual performance and observance of all of the
covenants and conditions of the Indenture to be performed by the Company; (b)
immediately before and after giving effect to such transaction or series of
transactions, no Default or Event of Default shall have occurred and be
continuing; (c) immediately after giving effect to such transaction or series of
transactions on a pro forma basis (including, without limitation, any
Indebtedness incurred or anticipated to be incurred in connection with such
transaction or series of transactions), the Company or the Surviving Entity, as
the case may be, would be able to Incur at least $1.00 of additional
Indebtedness under clause (a) of the second paragraph of "--Limitation on
Indebtedness"; and (d) immediately after giving effect to such transaction or
series of transactions on a pro forma basis (including, without limitation, any
Indebtedness incurred or anticipated to be incurred in connection with such
transaction or series of transactions), the Company or the Surviving Entity
shall have a Consolidated Net Worth equal to or greater than the Consolidated
Net Worth of the Company immediately prior to the transaction or series of
transactions. (Section 5.01)
    
 
     Upon any consolidation or merger, or any sale, assignment, transfer, lease,
conveyance or other disposition of the assets of the Company as an entirety or
virtually as an entirety in accordance with the preceding paragraph, the
successor entity formed by such consolidation or into which the Company is
merged or to which such sale, assignment, transfer, lease, conveyance or other
disposition is made will succeed to, and be substituted for, and may exercise
every right and power of, the Company under the Indenture with the same effect
as if such successor entity had been named as the Company therein. (Section
5.02)
 
CERTAIN DEFINITIONS
 
     "Additional Assets" means (i) any Property (other than cash, cash
equivalents or securities) used in any business in which the Company or any
Restricted Subsidiary is engaged as of the date of the Indenture or any business
ancillary thereto, (ii) securities representing 100% of the equity of an issuer
engaged in any such business or (iii) Permitted Business Investments.
 
                                       56
<PAGE>   59
 
     "Affiliate" of any specified Person means any other Person (i) which
directly or indirectly through one or more intermediaries controls, or is
controlled by, or is under common control with, such specified Person, or (ii)
which beneficially owns or holds directly or indirectly 10% or more of any class
of the Voting Stock or Voting Redeemable Stock of such specified Person or of
any Subsidiary of such specified Person. For the purposes of this definition,
"control", when used with respect to any specified Person, means the power to
direct the management and policies of such Person directly or indirectly,
whether through the ownership of Voting Stock, by contract or otherwise; and the
terms "controlling" and "controlled" have meanings correlative to the foregoing.
 
   
     "Asset Sale" means, with respect to any Person, any transfer, conveyance,
sale, lease or other disposition (including, without limitation, dispositions
pursuant to any consolidation or merger, but excluding any Sale and Leaseback
Transaction) by such Person or any of its Restricted Subsidiaries in any single
transaction or series of transactions of (a) shares of Capital Stock or other
ownership interests of another Person (including transfers of outstanding
Capital Stock of, and issuances of Capital Stock by, Restricted Subsidiaries and
Unrestricted Subsidiaries that are owned directly by the Company or a Restricted
Subsidiary) or (b) any other Property of such Person or any of its Restricted
Subsidiaries; provided, however, that the term "Asset Sale" shall not include
(i) the sale or transfer of Permitted Short-Term Investments, inventory or other
Property (or interests therein) in the ordinary course of business, or the sale
or transfer of oil and gas properties or direct or indirect interests in real
property, provided that at the time of such sale or transfer such properties and
interests do not have associated with them any proved reserves (whether or not
in the ordinary course of business); (ii) a sale or transfer of hydrocarbons or
other mineral products in the ordinary course of business of the oil and gas
production or marketing operations conducted by the Company and its Restricted
Subsidiaries; (iii) the liquidation of Property received in settlement of debts
owing to the Company or any Restricted Subsidiary as a result of foreclosure,
perfection or enforcement of any Lien or debt, which debts were owing to the
Company or any Restricted Subsidiary in the ordinary course of business of the
Company or such Restricted Subsidiary; (iv) when used with respect to the
Company, any asset disposition permitted pursuant to the covenant described
under "--Merger, Amalgamation, Consolidation and Sale of Assets" which
constitutes a disposition of all or substantially all of the Company's assets;
or (v) the sale or transfer of any Property or Capital Stock by the Company to a
Restricted Subsidiary or by a Restricted Subsidiary to the Company or by a
Restricted Subsidiary to a Restricted Subsidiary.
    
 
     "Average Life" means, as of the date of determination, with respect to any
Indebtedness or Preferred Stock, the quotient obtained by dividing (i) the sum
of the products of (x) the numbers of years from the date of determination to
the dates of each successive scheduled principal payment of such Indebtedness or
redemption or similar payment with respect to such Preferred Stock multiplied by
(y) the amount of such payment by (ii) the sum of all such payments.
 
     "Bank Credit Facilities" means with respect to any Person, one or more debt
facilities or commercial paper facilities with banks or other institutional
lenders, whether or not in effect on the date of the Indenture, providing for
revolving credit loans, term loans, receivables financing (including through the
sale of receivables to such lenders or to special purpose entities formed to
borrow from such lenders against such receivables) or letters of credit.
Notwithstanding the foregoing, if the Company or any Restricted Subsidiary
chooses to Incur Indebtedness under any such facility after the Issue Date of
the Debentures in compliance with the "Limitation on Indebtedness" covenant but
not in reliance on the exception provided by clause (c) thereof or clause (l)
thereof (with respect to a refinancing of Indebtedness under Bank Credit
Facilities), such Indebtedness shall not constitute Indebtedness under Bank
Credit Facilities for purposes of the Indenture.
 
     "Capital Expenditure Indebtedness" means Indebtedness Incurred by any
Person to finance a capital expenditure so long as (i) such capital expenditure
is or should be included as an "addition to oil and gas properties and
equipment, net" or "to property, plant or equipment" in accordance with GAAP,
and (ii) such Indebtedness is Incurred within 360 days of the date such capital
expenditure is made.
 
                                       57
<PAGE>   60
 
     "Capital Lease Obligation" of any Person means the obligation to pay rent
or other payment amounts under a lease of (or other arrangement conveying the
right to use) real or personal property of such Person which is required to be
classified and accounted for as a capitalized lease or a liability on the face
of a balance sheet of such Person in accordance with GAAP, to the extent
required pursuant to GAAP. For purposes of the "Limitation on Liens" covenant, a
Capital Lease Obligation shall be deemed to be secured by a Lien on the property
being leased.
 
     "Capital Stock" in any Person means any and all shares, interests,
participations or other equivalents in the equity interest (however designated)
in such Person and any rights (other than debt securities convertible into an
equity interest), warrants or options to subscribe for or to acquire an equity
interest in such Person; provided, however, that "Capital Stock" shall not
include Redeemable Stock but shall, with respect to the Company, include the 7%
Preferred Stock.
 
     "Change of Control" means the occurrence of any of the following events:
(i) any "person" (as such term is used in Sections 13(d) and 14(d) of the
Exchange Act), other than one or more Permitted Holders or an underwriter
engaged in a firm commitment underwriting in connection with a public offering
of the Voting Stock of the Company, is or becomes the "beneficial owner" (as
defined in Rules 13d-3 and 13d-5 under the Exchange Act, except that a person
shall be deemed to have "beneficial ownership" of all shares that any such
person has the right to acquire, whether such right is exercisable immediately
or only after the passage of time), directly or indirectly, of more than 35% of
the total voting power of the Voting Stock of the Company; (ii) during any
period of two consecutive years, individuals who at the beginning of such period
constitute the Board of Directors of the Company (together with any new
directors whose election by such Board of Directors or whose nomination for
election by the shareholders of the Company was approved by a vote of a majority
of the directors of the Company then still in office who were either directors
at the beginning of such period or whose election or nomination for election was
previously so approved) cease for any reason to constitute a majority of the
Board of Directors then in office; or (iii) the Company, either individually or
in conjunction with one or more of its Subsidiaries, sells, conveys, leases or
otherwise transfers or one or more such Subsidiaries sell, convey, lease or
otherwise transfer all or substantially all of the assets of the Company and the
Restricted Subsidiaries, taken as a whole, to any Person (other than a
Restricted Subsidiary).
 
     "Consolidated Adjusted Net Income" of any Person means, for any period, the
aggregate net income (or net loss, as the case may be) of such Person and its
Restricted Subsidiaries for such period on a consolidated basis, determined in
accordance with GAAP, provided that there shall be excluded therefrom, without
duplication, (i) items classified as extraordinary (other than the tax benefit
of the utilization of net operating loss carryforwards and alternative minimum
tax credits), (ii) gains and losses from asset sales outside the ordinary course
of business, (iii) except to the extent of the amount of cash dividends or other
cash distributions actually paid to such specified Person or its Restricted
Subsidiaries by any other Person during such period, the net income (or loss) of
such other Person other than a Restricted Subsidiary of such specified Person,
(iv) the net income of any Person acquired by such specified Person or any of
its consolidated Restricted Subsidiaries in a pooling-of-interests transaction
for any period prior to the date of such acquisition, (v) any gain or loss, net
of taxes, realized on the termination of any employee pension benefit plan, and
(vi) the net income of any subsidiary of such specified Person to the extent
that the transfer to that Person of that income is restricted by contract or
otherwise, except for any dividends or distributions actually paid by such
subsidiary to such Person.
 
     "Consolidated Interest Coverage Ratio" means as of the date of the
transaction giving rise to the need to calculate the Consolidated Interest
Coverage Ratio (the "Transaction Date"), the ratio of (i) the aggregate amount
of EBITDA of the Company and its consolidated Restricted Subsidiaries for the
four full fiscal quarters immediately prior to the Transaction Date to (ii) the
aggregate Consolidated Interest Expense of the Company and its Restricted
Subsidiaries that is anticipated to accrue during a period consisting of the
fiscal quarter in which the Transaction Date occurs and the three fiscal
quarters immediately subsequent thereto (based upon the pro forma amount and
maturity of, and interest payments in respect of, Indebtedness expected to be
outstanding on the Transaction Date), assuming the continuation of market
interest rates prevailing on the Transaction Date and base interest rates in
 
                                       58
<PAGE>   61
 
   
respect of floating interest rate obligations equal to the base interest rates
in effect as of the Transaction Date; provided, however, that if the Company or
any of its Restricted Subsidiaries is a party to any Interest Rate Protection
Agreements which would have the effect of changing the interest rate on any
Indebtedness of the Company or any of its Restricted Subsidiaries for all (or
any portion of ) such four-quarter period, the resulting rate shall be used for
such four-quarter period (or corresponding portion thereof); provided, further,
that any Consolidated Interest Expense with respect to Indebtedness Incurred or
retired during the fiscal quarter in which the Transaction Date occurs shall be
calculated as if such Indebtedness was so Incurred or retired on the first day
of such fiscal quarter. In addition, if since the beginning of the four full
fiscal quarter period preceding the Transaction Date, (x) the Company or any of
its Restricted Subsidiaries shall have engaged in any asset sale out of the
ordinary course of business, EBITDA for such period shall be reduced by an
amount equal to the EBITDA (if positive), or increased by an amount equal to the
EBITDA (if negative), directly attributable to the assets which are the subject
of such asset sale for such period calculated on a pro forma basis as if such
sale and the receipt and application of the proceeds therefrom (including,
without limitation, any related retirement of Indebtedness) had occurred on the
first day of such period or (y) the Company or any of its Restricted
Subsidiaries shall have acquired any assets out of the ordinary course of
business, EBITDA shall be calculated on a pro forma basis as if such acquisition
had occurred on the first day of such four-quarter period.
    
 
   
     "Consolidated Interest Expense" means, with respect to any Person for any
period, without duplication (A) the sum of (i) the aggregate amount of cash and
noncash interest expense (including capitalized interest) of such Person and its
Restricted Subsidiaries for such period as determined on a consolidated basis in
accordance with GAAP in respect of Indebtedness (including, without limitation,
(v) any amortization of debt discount, (w) net costs associated with any
Interest Rate Protection Agreement (including any amortization of discounts),
(x) the interest portion of any deferred payment obligation, (y) all accrued
interest, and (z) all commissions, discounts, commitment fees, origination fees
and other fees and charges owed with respect to Bank Credit Facilities and other
Indebtedness) paid, accrued or scheduled to be paid or accrued, during such
period; (ii) dividends declared and payable on Redeemable Stock of such Person
(and of its Restricted Subsidiaries if paid to a Person other than such Person
or its Restricted Subsidiaries); (iii) the portion of any rental obligation of
such Person or its Restricted Subsidiaries in respect of any Capital Lease
Obligation allocable during such period to interest expense in accordance with
GAAP; (iv) the portion of any rental obligation of such Person or its Restricted
Subsidiaries in respect of any Sale and Leaseback Transaction allocable during
such period to interest expense (determined as if such were treated as a Capital
Lease Obligation); and (v) to the extent any Indebtedness of any other Person is
Guaranteed by such Person or any of its Restricted Subsidiaries and on any
determination date such Indebtedness is in default or the Company should
reasonably expect to make any payments in respect of such Indebtedness during
the four fiscal quarters immediately following such date, the aggregate amount
of interest paid, accrued or scheduled to be paid or accrued, by such other
Person during such period attributable to any such Indebtedness, less (B) to the
extent included in (A) above, amortization or write-off of deferred financing
costs (other than discounts) of such Person and its Restricted Subsidiaries
during such period and any charge related to any premium or penalty paid in
connection with redeeming or retiring any Indebtedness of such Person and its
Restricted Subsidiaries prior to its Stated Maturity; in the case of both (A)
and (B) above, after elimination of intercompany accounts among such Person and
its Restricted Subsidiaries and as determined in accordance with GAAP.
    
 
   
     "Consolidated Net Tangible Assets", as of any date of determination, means
the sum of the amounts that would appear on a consolidated balance sheet of the
Company and its consolidated Subsidiaries (other than Unrestricted Subsidiaries)
as the total assets (less accumulated depreciation or amortization, allowances
for doubtful receivables, other applicable reserves and other properly
deductible items) of the Company and its consolidated Subsidiaries (other than
Unrestricted Subsidiaries), determined on a consolidated basis in accordance
with GAAP, after giving effect to purchase accounting and after deducting
therefrom, to the extent otherwise included, the amounts of (without
duplication): (i) the aggregate amount of liabilities of the Company and its
consolidated Subsidiaries (other than Unrestricted
    
 
                                       59
<PAGE>   62
 
   
Subsidiaries) which may properly be classified as current liabilities (including
taxes accrued as estimated), determined on a consolidated basis in accordance
with GAAP; (ii) minority interests in consolidated Subsidiaries held by Persons
other than the Company or a Restricted Subsidiary; (iii) the excess of cost over
Fair Market Value of assets or businesses acquired; (iv) any revaluation or
other write-up in book value of assets subsequent to the last day of the fiscal
quarter of the Company immediately preceding the Issue Date as a result of a
change in the method of valuation in accordance with GAAP; (v) unamortized debt
discount and expenses and other unamortized deferred charges, goodwill, patents,
trademarks, service marks, trade names, copyrights, licenses, organization or
developmental expenses and other intangible items (if included in total assets);
(vi) treasury stock (if included in total assets); and (vii) cash set apart and
held in a sinking or other analogous fund established for the purpose of
redemption or other retirement of Capital Stock or Indebtedness or restricted
cash (determined in accordance with GAAP).
    
 
     "Consolidated Net Worth" of any Person means the stockholders' equity of
such Person and its Restricted Subsidiaries, as determined on a consolidated
basis in accordance with GAAP, less (to the extent included in stockholders'
equity) amounts attributable to Redeemable Stock of such Person or its
Restricted Subsidiaries.
 
     "Default" means any event, act or condition the occurrence of which is, or
after notice or the passage of time or both would be, an Event of Default.
 
     "Designated Senior Indebtedness" means any Senior Indebtedness which has,
at the time of determination, an aggregate principal amount outstanding of at
least $          million (including the amount of all undrawn commitments and
matured and contingent reimbursement obligations pursuant to letters of credit
thereunder) and is specifically designated in the instrument evidencing such
Senior Indebtedness or is designated in an irrevocable notice delivered by the
Company to the holders or a Representative of the holders of such Senior
Indebtedness and the Trustee as "Designated Senior Indebtedness" of the Company.
 
     "Dollar-Denominated Production Payments" mean dollar-denominated production
payment obligations that are or, upon the occurrence of a contingent event,
would be recorded as liabilities in accordance with GAAP. Such obligations will
be deemed to constitute Indebtedness for borrowed money for purposes of the
Indenture.
 
     "EBITDA" means with respect to any Person for any period, the Consolidated
Adjusted Net Income of such Person and its consolidated Restricted Subsidiaries
for such period, plus (a) the sum of, to the extent reflected in the
consolidated income statement of such Person and its Restricted Subsidiaries for
such period from which Consolidated Adjusted Net Income is determined and
deducted in the determination of such Consolidated Adjusted Net Income, without
duplication, (i) income tax expense, (ii) Consolidated Interest Expense, (iii)
depreciation and depletion expense, (iv) amortization expense, and (v) any other
non-cash charges including, without limitation, unrealized foreign exchange
losses, less (b) the sum of, to the extent reflected in the consolidated income
statement of such Person and its Restricted Subsidiaries for such period from
which Consolidated Adjusted Net Income is determined and added in the
determination of such Consolidated Adjusted Net Income, without duplication (i)
income tax recovery and (ii) unrealized foreign exchange gains.
 
     "Fair Market Value" means, with respect to any assets to be transferred
pursuant to any Asset Sale or Sale and Leaseback Transaction or any noncash
consideration or Property transferred or received by any Person, the fair market
value of such consideration or property as determined in good faith by (i) any
Officer of the Company if such fair market value does not exceed $10 million and
(ii) the Board of Directors of the Company as evidenced by a certified
resolution delivered to the Trustee if such fair market value exceeds $10
million; provided that if such resolution indicates that such fair market value
exceeds $25 million and such Transaction involves any Affiliate of the Company
(other than a Restricted Subsidiary), such resolution shall be accompanied by
the written opinion delivered to the Trustee of a nationally recognized
investment banking firm or another nationally recognized expert having
sufficient
 
                                       60
<PAGE>   63
 
expertise to the effect that such consideration or property is fair, from a
financial point of view, to such Person.
 
     "GAAP" means United States generally accepted accounting principles as in
effect on the date of the Indenture.
 
     "Guarantee" by any Person means any obligation, contingent or otherwise, of
such Person guaranteeing or having the economic effect of guaranteeing any
Indebtedness of any other Person (the "primary obligor") in any manner, whether
directly or indirectly, and including, without limitation, any Lien on the
assets of such Person securing obligations of the primary obligor and any
obligation of such Person (i) to purchase or pay (or advance or supply funds for
the purchase or payment of) such Indebtedness or to purchase (or to advance or
supply funds for the purchase or payment of) any security for the payment of
such Indebtedness, (ii) to purchase Property, securities or services for the
purpose of assuring the holder of such Indebtedness of the payment of such
Indebtedness, or (iii) to maintain working capital, equity capital or other
financial statement condition or liquidity of the primary obligor so as to
enable the primary obligor to pay such Indebtedness (and "Guaranteed",
"Guaranteeing" and "Guarantor" shall have meanings correlative to the
foregoing); provided, however, that a Guarantee by any Person shall not include
endorsements by such Person for collection or deposit, in either case, in the
ordinary course of business.
 
     "Hedging Agreements" means Interest Rate Protection Agreements and Oil and
Gas Purchase and Sale Contracts.
 
     "Incur" means, with respect to any Indebtedness or other obligation of any
Person, to create, issue, incur (by conversion, exchange or otherwise), extend,
assume, Guarantee or otherwise become liable in respect of such Indebtedness or
other obligation or the recording, as required pursuant to GAAP or otherwise, of
any such Indebtedness or obligation on the balance sheet of such Person (and
"Incurrence", "Incurred", "Incurrable" and "Incurring" shall have meanings
correlative to the foregoing); provided, however, that a change in GAAP that
results in an obligation of such Person that exists at such time becoming
Indebtedness shall not be deemed an Incurrence of such Indebtedness.
 
   
     "Indebtedness" means at any time (without duplication), with respect to any
Person, whether recourse is to all or a portion of the assets of such Person,
and whether or not contingent, (i) any obligation of such Person for borrowed
money, (ii) any obligation of such Person evidenced by bonds, debentures, notes,
Guarantees or other similar instruments, including, without limitation, any such
obligations Incurred in connection with the acquisition of Property, assets or
businesses, (iii) any reimbursement obligation of such Person with respect to
letters of credit, bankers' acceptances or similar facilities issued for the
account of such Person, (iv) any obligation of such Person issued or assumed as
the deferred purchase price of Property or third party services, (v) any Capital
Lease Obligation of such Person, (vi) the maximum fixed redemption or repurchase
price of Redeemable Stock of such Person at the time of determination, (vii) any
payment obligation of such Person under Hedging Agreements at the time of
determination, (viii) any obligation to pay rent or other payment amounts of
such Person with respect to any Sale and Leaseback Transaction to which such
Person is a party, (ix) any Production Payment, and (x) any obligation of the
type referred to in clauses (i) through (ix) of this paragraph of another Person
and all dividends of another Person the payment of which, in either case, such
Person has Guaranteed or is responsible or liable, directly or indirectly, as
obligor, Guarantor or otherwise. For purposes of this definition, the maximum
fixed repurchase price of any Redeemable Stock that does not have a fixed
repurchase price shall be calculated in accordance with the terms of such
Redeemable Stock as if such Redeemable Stock were repurchased on any date on
which Indebtedness shall be required to be determined pursuant to the Indenture;
provided, however, that if such Redeemable Stock is not then permitted to be
repurchased, the repurchase price shall be the book value of such Redeemable
Stock as reflected in the most recent financial statements of such Person. The
amount of Indebtedness of any Person at any date shall be the outstanding
balance at such date of all unconditional obligations as described above and the
maximum liability of any contingent obligations in respect thereof at such date.
    
 
                                       61
<PAGE>   64
 
     "Interest Rate Protection Agreement" means, with respect to any Person, any
interest rate swap agreement, forward rate agreement, interest rate cap or
collar agreement or other financial agreement or arrangement designed to protect
such Person or its Restricted Subsidiaries against fluctuations in interest
rates, as in effect from time to time.
 
     "Investment" means, with respect to any Person (i) any amount paid by such
Person, directly or indirectly, to any other Person for Capital Stock or other
Property of, or as a capital contribution to, any other Person (the amount of
any investment made other than in cash to be determined by the fair market value
of such non-cash investment at the time so made) or (ii) any direct or indirect
loan or advance to any other Person (other than accounts receivable of such
Person arising in the ordinary course of business), but excluding any increase
in equity ownership in a Person resulting from retained earnings of such Person.
 
     "Lien" means, with respect to any Property, any mortgage or deed of trust,
pledge, hypothecation, assignment, deposit arrangement, security interest, lien
(statutory or other), charge, easement, encumbrance, preference, priority or
other security or similar agreement or preferential arrangement of any kind or
nature whatsoever on or with respect to such Property (including, without
limitation, any conditional sale or other title retention agreement having
substantially the same economic effect as any of the foregoing). For purposes of
the "Limitation on Liens" covenant, a Capital Lease Obligation shall be deemed
to be secured by a Lien on the property being leased.
 
     "Liquid Securities" means securities (i) of an issuer that is not an
Affiliate of the Company, (ii) that are publicly traded on the New York Stock
Exchange, the American Stock Exchange or the Nasdaq National Market, (iii) as to
which the Company is not subject to any restrictions on sale or transfer
(including any volume restrictions under Rule 144 under the Securities Act or
any other restrictions imposed by the Securities Act) or as to which a
registration statement under the Securities Act covering the resale thereof is
in effect for as long as the securities are held and (iv) that are subsequently
sold or exchanged for cash or cash equivalents within 180 days of the receipt
thereof.
 
     "Moody's" means Moody's Investors Service, Inc. and its successors.
 
     "Net Available Cash" from an Asset Sale means cash proceeds received
(including any cash proceeds received by way of deferred payment of principal
pursuant to a note or installment receivable or otherwise, but only as and when
received, and excluding any other consideration received in the form of
assumption by the acquiring person of Indebtedness or other obligations relating
to such properties or assets) therefrom, in each case net of (i) all legal,
title and recording tax expenses, commissions and other fees and expenses
incurred, and all Federal, state, provincial, foreign and local taxes required
to be paid or accrued as a liability under GAAP as a consequence of such Asset
Sale, (ii) all payments made on any Indebtedness which is secured by any assets
subject to such Asset Sale, in accordance with the terms of any Lien upon such
assets, or which must by its terms, or in order to obtain a necessary consent to
such Asset Sale or by applicable law, be repaid out of the proceeds from such
Asset Sale, (iii) all distributions and other payments required to be made to
minority interest holders in Subsidiaries or joint ventures as a result of such
Asset Sale and (iv) the deduction of appropriate amounts to be provided by the
seller as a reserve, in accordance with GAAP, against any liabilities associated
with the assets disposed of in such Asset Sale and retained by the Company or
any Restricted Subsidiary after such Asset Sale; provided, however, that in the
event that any consideration for an Asset Sale (which would otherwise constitute
Net Available Cash) is required to be held in escrow pending determination of
whether a purchase price adjustment will be made, such consideration (or any
portion thereof) shall become Net Available Cash only at such time as it is
released to such Person or its Restricted Subsidiaries from escrow; and
provided, further, however, that any non-cash consideration received in
connection with an Asset Sale which is subsequently converted to cash shall be
deemed to be Net Available Cash at such time and shall thereafter be applied in
accordance with the "Limitation on Sales of Assets" covenant.
 
                                       62
<PAGE>   65
 
     "Oil and Gas Business" means the business of the exploration for, and
development, acquisition, production, processing, marketing, refining, storage
and transportation of, hydrocarbons and other related energy and natural
resource businesses.
 
     "Oil and Gas Liens" means (i) Liens on any specific property or any
interest therein, construction thereon or improvement thereto to secure all or
any part of the costs incurred for surveying, exploration, drilling, extraction,
development, construction, alteration, repair or improvement of, in, under or on
such property (it being understood that, in the case of oil and gas producing
properties, or any interest therein, costs incurred for "development" shall
include costs incurred for all facilities relating to such properties or to
projects, ventures or other arrangements of which such properties form a part or
which relate to such properties or interests); (ii) Liens or the creation of
encumbrances on an oil and/or gas producing property to secure obligations
incurred or guarantees of obligations incurred in connection with or necessarily
incidental to commitments for the purchase or sale of, or the transportation or
distribution of, the products derived from such property; (iii) Liens reserved
in oil and gas mineral leases for bonus or rental payments and for compliance
with the terms of such leases provided that such Liens are limited to the oil
and gas subject to the relevant leases; (iv) Liens arising under partnership
agreements, oil and gas leases, farm-out agreements, division orders, contracts
for the sale, purchase, exchange, transportation, gathering or processing of
oil, gas or other hydrocarbons, unitization and pooling designations,
declarations, orders and agreements, development agreements, operating
agreements, area of mutual interest agreements, gas balancing or deferred
production agreements, injection, repressuring and recycling agreements, salt
water or other disposal agreements, seismic or geophysical permits or
agreements, and other agreements which are customary in the Oil and Gas
Business, provided in all instances that such Liens are limited to the assets
that are the subject of the relevant agreement and (v) Liens on pipelines or
pipeline facilities that arise by operation of law.
 
     "Oil and Gas Purchase and Sale Contract" means, with respect to any Person,
any oil and gas agreements, and other agreements or arrangements, or any
combination thereof, designed to provide protection against oil and gas price
fluctuations.
 
   
     "Permitted Business Investments" means Investments and expenditures made in
the ordinary course of, and of a nature customary for companies actively engaged
in, the Oil and Gas Business including, without limitation, (i) ownership
interests in oil and gas properties and (ii) Investments and expenditures in the
form of or pursuant to operating agreements, processing agreements, farm-in
agreements, farm-out agreements, development agreements, area of mutual interest
agreements, unitization agreements, pooling arrangements, joint bidding
agreements, service contracts, partnership agreements (whether general or
limited), capital stock in corporations and subscription agreements, in, to or
with third parties (including Unrestricted Subsidiaries), pursuant to which the
Company or a Restricted Subsidiary actively engages in the Oil and Gas Business
through agreements, transactions, interests or arrangements which permit it to
share risks or costs, comply with regulatory requirements regarding local
ownership or satisfy other objectives customarily achieved through the conduct
of Oil and Gas Business jointly with third parties.
    
 
     "Permitted Holders" means Itel Corporation, HC Associates, Minorco and
Minorco (U.S.A.) Inc.
 
     "Permitted Investment" means any and all of the following: (a) Permitted
Short-Term Investments; (b) Investments in property, plant, equipment and other
assets used in the ordinary course of the Oil and Gas Business and Permitted
Business Investments; (c) Investments in a Restricted Subsidiary or in any other
Person as a result of which such other Person becomes a Restricted Subsidiary in
compliance with the "Restricted and Unrestricted Subsidiaries" covenant; (d)
negotiable instruments held for collection; outstanding travel, moving and other
like advances to officers, employees and consultants; lease, utility and other
similar deposits; or stock, obligations or securities received in settlement of
debts owing to the Company or any of its Restricted Subsidiaries as a result of
foreclosure, perfection or enforcement of any Lien or Indebtedness, in each of
the foregoing cases in the ordinary course of business of the Company or such
Restricted Subsidiary; (e) other advances and loans to officers and employees of
the Company or any Subsidiary, provided such loans and advances do not exceed $2
million at any one time outstanding;
 
                                       63
<PAGE>   66
 
   
(f) Investments in the form of securities received from Asset Sales, provided,
that such Asset Sales are made in compliance with the "Limitation on Sales of
Asset" covenant; (g) payment of scheduled dividends on the 7% Preferred Stock
and the DECS in accordance with their terms (as well as payment of any
arrearages in such scheduled dividends) on the date of the Indenture; (h)
Investments pursuant to any agreement or obligation of the Company or any of its
Restricted Subsidiaries as in effect on the date of the Indenture (other than
Investments described in clauses (a) through (g) above) and (i) other
Investments with an aggregate Fair Market Value at any time not in excess of $5
million.
    
 
   
     "Permitted Short-Term Investments" means any of the following: (i)
Investments in U.S. Government Obligations maturing within 180 days of the date
of acquisition thereof, (ii) Investments in time deposit accounts, certificates
of deposit and money market deposits maturing within 180 days of the date of
acquisition thereof issued by a bank or trust company which is organized under
the laws of the United States of America, any State thereof or any foreign
country recognized by the United States of America having capital, surplus and
undivided profits aggregating in excess of $500 million (or the Dollar
Equivalent thereof) and whose long-term Indebtedness is rated "A" or higher
according to Moody's (or such equivalent rating by at least one "nationally
recognized statistical rating organization" (as defined in Rule 436 under the
Securities Act)), (iii) repurchase and reverse repurchase obligations with a
term of not more than seven days for underlying securities of the types
described in clause (i) entered into with a bank meeting the qualification
described in clause (ii), (iv) Investments in commercial paper, maturing not
more than 180 days after the date of acquisition, issued by a corporation (other
than an Affiliate of the Company) organized and in existence under the laws of
the United States of America, any State thereof or any foreign country
recognized by the United States of America with a rating at the time as of which
any Investment therein is made of "P-1" (or higher) according to Moody's or
"A-1" (or higher) according to S&P and (v) pooled investments and Investments in
mutual funds all the assets of which consist of the Investments and other
obligations of the types described in clauses (i) through (iv) hereof.
    
 
     "Person" means any individual, corporation, partnership, joint venture,
trust, unincorporated organization or government or any agency or political
subdivision thereof.
 
     "Preferred Stock" of any Person means Capital Stock of such Person of any
class or classes (however designated) that ranks prior, as to the payment of
dividends and/or as to the distribution of assets upon any voluntary or
involuntary liquidation, dissolution or winding up of such Person, to shares of
Capital Stock of any other class of such Person; provided, however, that
"Preferred Stock" shall not include Redeemable Stock.
 
     "Production Payments" means, collectively, Dollar-Denominated Production
Payments and Volumetric Production Payments.
 
     "Property" means, with respect to any Person, any interest of such Person
in any kind of property or asset, whether real, personal or mixed, or tangible
or intangible, including, without limitation, Capital Stock in any other Person
(but excluding Capital Stock or other securities issued by such Person).
 
     "Rating Agency" means S&P and Moody's or, if S&P or Moody's shall have
ceased to be a "nationally recognized statistical rating organization" (as
defined in Rule 436 under the Securities Act) or shall have ceased to make
publicly available a rating on any outstanding securities of any company engaged
primarily in the Oil and Gas Business, such other organization or organizations,
as the case may be, then making publicly available a rating on the Debentures as
is (or are) selected by the Company.
 
     "Rating Date" means the date which is 90 days prior to the occurrence of a
Change of Control.
 
     "Rating Decline" means the occurrence on any date within the 90-day period
following the occurrence of a Change of Control (which period shall be extended
so long as prior to the end of such 90-day period and continuing thereafter the
rating of the Debentures is under publicly announced consideration for possible
downgrade by either Rating Agency) of: (i) the rating of the Debentures by each
Rating Agency within such period shall be at least two Gradations below the
rating of the Debentures by such Rating Agency on the Rating Date or (ii) either
Rating Agency shall withdraw its
 
                                       64
<PAGE>   67
 
rating of the Debentures. A Gradation shall include changes within rating
categories (e.g., with respect to S&P, a decline in a rating from BB+ to BB, or
from BB- to B+, will constitute a decrease of one Gradation).
 
     "Redeemable Stock" of any Person means any equity security of such Person
that by its terms (or by the terms of any security into which it is convertible
or for which it is exchangeable), or otherwise (including on the happening of an
event), is or could be required to be redeemed for cash or other Property or is
redeemable for cash or other Property at the option of the holder thereof, in
whole or in part, on or prior to the Stated Maturity of the Debentures; or by
its terms is or could be exchangeable for Indebtedness at any time, in whole or
in part, on or prior to the Stated Maturity of the Debentures; provided,
however, that Redeemable Stock shall not include any security by virtue of the
fact that it may be exchanged or converted at the option of the holder or of the
Company for Capital Stock of the Company having no preference as to dividends or
liquidation over any other Capital Stock of the Company and provided, further,
that Redeemable Stock shall not include the 7% Preferred Stock or the DECS.
 
     "Representative" means the trustee, agent or other representative expressly
authorized to act in such capacity, if any, for an issue of Senior Indebtedness.
 
     "Restricted Subsidiary" means as of the date of determination any
Subsidiary of the Company all of the outstanding Capital Stock and outstanding
Voting Redeemable Stock of which is held directly or indirectly by the Company
and other Restricted Subsidiaries.
 
     "Sale and Leaseback Transaction" means, with respect to any Person, any
direct or indirect arrangement (excluding, however, any such arrangement between
such Person and a Restricted Subsidiary of such Person or between one or more
Restricted Subsidiaries of such Person) pursuant to which Property is sold or
transferred by such Person or a Restricted Subsidiary of such Person and is
thereafter leased back from the purchaser or transferee thereof by such Person
or one of its Restricted Subsidiaries.
 
     "S&P" means Standard & Poor's Corporation and its successors.
 
     "Senior Indebtedness" means (i) all obligations of the Company consisting
of the principal of and premium, if any, and accrued and unpaid interest due in
respect of (A) Indebtedness of the Company for borrowed money and (B)
Indebtedness evidenced by notes, debentures, bonds or other similar instruments
permitted under the Indenture for the payment of which the Company is
responsible or liable; (ii) all Capital Lease Obligations of the Company; (iii)
all obligations of the Company (A) for the reimbursement of any obligor on any
letter of credit, bankers' acceptance or similar credit transaction or (B) under
Hedging Agreements; and (iv) all obligations of other persons of the type
referred to in clauses (i), (ii) and (iii) for the payment of which the Company
is responsible or liable as Guarantor; provided that Senior Indebtedness does
not include any obligations in respect of (i) Indebtedness of the Company that
is by its terms subordinate or pari passu in right of payment to the Debentures;
(ii) any Indebtedness Incurred or outstanding in violation of the provisions of
the Indenture; (iii) accounts payable or any other obligations of the Company to
trade creditors created, Incurred or assumed by the Company in the ordinary
course of business in connection with the obtaining of materials or services;
(iv) any liability for Federal, state, local or other taxes owed or owing by the
Company; or (v) any obligation of the Company to any Affiliate of the Company
other than an obligation or obligations constituting Permitted Business
Investments.
 
     "7% Preferred Stock" means the Company's Convertible Preferred Stock,
Series 7%.
 
     "Subsidiary" of a Person means another Person a majority of whose Voting
Stock is at the time, directly or indirectly, owned or controlled by (i) the
first Person, (ii) the first Person and one or more of its Subsidiaries or (iii)
one or more of the first Person's Subsidiaries.
 
                                       65
<PAGE>   68
 
     "Unrestricted Subsidiary" means (i) each Subsidiary of the Company that the
Company has designated pursuant to the covenant described under "Certain
Covenants--Restricted and Unrestricted Subsidiaries" as an Unrestricted
Subsidiary and (ii) any Subsidiary of an Unrestricted Subsidiary.
 
     "U.S. Government Obligations" means direct obligations (or certificates
representing an ownership interest in such obligations) of the United States of
America (including any agency or instrumentality thereof) for the payment of
which the full faith and credit of the United States of America is pledged and
which are not callable or redeemable at the issuer's option.
 
     "Volumetric Production Payments" mean volumetric production payment
obligations that are or, upon the occurrence of a contingent event, would be
recorded as liabilities in accordance with GAAP. Such obligations will be deemed
to constitute Indebtedness for borrowed money for purposes of the Indenture.
 
     "Voting Redeemable Stock" of any Person means Redeemable Stock of such
Person which ordinarily has voting power for the election of directors (or
persons performing similar functions) of such Person whether at all times or
only so long as no senior class of securities has such voting power by reason of
any contingency.
 
     "Voting Stock" of any Person means Capital Stock or Voting Redeemable Stock
of such Person which ordinarily has voting power for the election of directors
(or persons performing similar functions) of such Person whether at all times or
only so long as no senior class of securities has such voting power by reason of
any contingency.
 
DEFEASANCE
 
     The Indenture provides that the Company, at its option, (a) will be
Discharged from any and all obligations in respect of the Debentures (except in
each case for certain obligations to register the transfer or exchange of
Debentures, replace stolen, lost or mutilated Debentures, maintain paying
agencies and hold moneys for payment in trust) on the 123rd day after
satisfaction of the conditions therein specified, including those set forth
below, or (b) will not thereafter be subject to certain provisions of the
Indenture (including the Events of Default described below other than defaults
on payments due on the Debentures), in each case if the Company irrevocably
deposits or causes to be deposited with the Trustee, in trust, money or U.S.
Government Obligations which through the payment of interest thereon and
principal thereof in accordance with their terms will provide money in an amount
sufficient to pay all the principal of, premium, if any, and interest on, the
Debentures not later than one day before the Stated Maturity or the applicable
redemption date, as the case may be, of such principal of, premium, if any, and
interest to the payment date. To exercise any such option, there shall not exist
any Default or Event of Default which shall have occurred and be continuing, and
the Company shall deliver to the Trustee an Opinion of Counsel to the effect
that, among other things, (1) the deposit and related defeasance would not cause
the Holders of the Debentures to recognize income, gain or loss for Federal
income tax purposes and, in the case of a Discharge pursuant to clause (a),
accompanied by a ruling to such effect received from or published by the United
States Internal Revenue Service, (2) the resulting trust will not be an
"Investment Company" within the meaning of the Investment Company Act of 1940 or
such trust is qualified thereunder or exempt from regulation thereunder, and (3)
if the Debentures are then listed on any national securities exchange, the
Debentures would not be delisted as a result of the exercise of such option.
(Sections 8.01 and 8.02)
 
EVENTS OF DEFAULT AND NOTICE
 
     The following are summaries of Events of Default under the Indenture: (a)
failure to pay any interest on the Debentures when due, continued for 30 days;
(b) failure to pay principal of (or premium, if any, on) the Debentures when
due; (c) failure to perform any other covenant of the Company in the Indenture,
continued for 60 days after written notice as provided in the Indenture; (d) a
default under any Indebtedness for borrowed money by the Company or any
Restricted Subsidiary which results in acceleration of the maturity of such
indebtedness of the Company, or failure to pay any such
 
                                       66
<PAGE>   69
 
Indebtedness at maturity, in an amount greater than $25 million if such
Indebtedness is not discharged or such acceleration is not rescinded or annulled
within 10 days after written notice as provided in the Indenture; (e) one or
more final judgments or orders by a court of competent jurisdiction are entered
against the Company or any Restricted Subsidiary in an uninsured or effectively
unindemnified aggregate amount in excess of $25 million and such judgments or
orders are not discharged, waived, stayed or satisfied for a period of 60
consecutive days; and (f) certain events of bankruptcy, insolvency or
reorganization. (Section 6.01)
 
     The Indenture provides that if an Event of Default (other than an Event of
Default described in clause (f) above) with respect to the Debentures shall
occur and be continuing, either the Trustee or the Holders of at least 25% in
aggregate principal amount of the Outstanding Debentures by notice as provided
in the Indenture may declare the principal amount of the Debentures to be due
and payable on the fifth day after written notice of such declaration has been
delivered to the Representative for each issue of Designated Senior
Indebtedness. If an Event of Default described in clause (f) above with respect
to the Debentures shall occur, the principal amount of all the Debentures will
automatically, and without any action by the Trustee or any Holder, become
immediately due and payable. After any such acceleration, but before a judgment
or decree based on acceleration, the Holders of a majority in aggregate
principal amount of the Outstanding Debentures may, under certain circumstances,
rescind and annul such acceleration if all Events of Default, other than the non
payment of accelerated principal (or other specified amount), have been cured or
waived as provided in the Indenture. (Section 6.02)
 
     Subject to the provisions of the Indenture relating to the duties of the
Trustee, in case an Event of Default shall occur and be continuing, the Trustee
will be under no obligation to exercise any of its rights or powers under the
Indenture at the request or direction of any of the Holders, unless such Holders
shall have offered to the Trustee reasonable indemnity. Subject to such
provisions for the indemnification of the Trustee, the Holders of a majority in
aggregate principal amount of the Outstanding Debentures will have the right to
direct the time, method and place of conducting any proceeding for any remedy
available to the Trustee or exercising any trust or power conferred on the
Trustee with respect to the Debentures. (Section 6.05)
 
     No Holder of Debentures will have any right to institute any proceeding
with respect to the Indenture, or for the appointment of a receiver or a
trustee, or for any other remedy thereunder, unless (i) such Holder has
previously given to the Trustee written notice of a continuing Event of Default
with respect to the Debentures, (ii) the Holders of at least 25% in aggregate
principal amount of the Outstanding Debentures have made written request, and
such Holder or Holders have offered reasonable indemnity, to the Trustee to
institute such proceeding as trustee and (iii) the Trustee has failed to
institute such proceeding, and has not received from the Holders of a majority
in aggregate principal amount of the Outstanding Debentures a direction
inconsistent with such request, within 60 days after such notice, request and
offer. (Section 6.06) However, such limitations do not apply to a suit
instituted by a Holder of Debentures for the enforcement of payment of the
principal of or any premium or interest on such Debentures on or after the
applicable due date specified in the Debentures. (Section 6.07)
 
     The Indenture includes a covenant that the Company will file annually with
the Trustee a certificate stating whether or not any Default exists. (Section
4.09)
 
MODIFICATION OF THE INDENTURE; WAIVER
 
     The Indenture contains provisions permitting the Company and the Trustee,
with the written consent of the Holders of not less than a majority in aggregate
principal amount of the Outstanding Debentures, to execute supplemental
indentures adding any provisions to or changing or eliminating any of the
provisions of the Indenture or modifying the rights of the Holders of the
Debentures, except that no such supplemental indenture may, without the consent
of all the Holders of Debentures, among other things, (a) reduce the principal
amount of the Debentures; (b) reduce the rate of or change the time for payment
of interest on any Debentures; (c) change the currency in which any amount due
in respect of the Debentures is payable; (d) reduce the principal of or any
premium on or change the Stated Maturity
 
                                       67
<PAGE>   70
 
of any Debentures or alter the redemption or repurchase provisions with respect
thereto; (e) reduce the relative ranking of any Debentures; or (f) release any
security that may have been granted in respect of the Debentures. (Section 9.01)
 
     The Holders of a majority in principal amount of the Outstanding Debentures
may waive compliance by the Company with certain restrictive provisions of the
Indenture. (Section 9.02) The Holders of a majority in principal amount of the
Outstanding Debentures may waive any past default under the Indenture, except a
default in the payment of principal, premium or interest and certain covenants
and provisions of the Indenture which cannot be amended without the consent of
the Holder of all Outstanding Debentures. (Section 6.04)
 
NOTICES
 
     Notices to Holders of Debentures will be given by mail to the addresses of
such Holders as they appear in the Security Register. (Section 11.01)
 
GOVERNING LAW
 
     The Indenture and the Debentures are governed by and construed in
accordance with the internal laws of the State of New York without reference to
principles of conflicts of law. (Section 11.08)
 
THE TRUSTEE
 
     The First National Bank of Boston is the Trustee under the Indenture. The
Trustee may perform certain services for and transact other business with the
Company and its subsidiaries from time to time in the ordinary course of
business.
 
                                  UNDERWRITING
 
     The Underwriters named below have severally agreed, subject to the terms
and conditions of the Underwriting Agreement with the Company, to purchase from
the Company the aggregate principal amount of Debentures set forth opposite
their respective names. The Underwriters are committed to purchase all of the
Debentures if any are purchased.
 
<TABLE>
<CAPTION>
                                                                      PRINCIPAL
                                UNDERWRITERS                           AMOUNT
            ----------------------------------------------------    -------------
            <S>                                                     <C>
            Salomon Brothers Inc................................    $
            Dillon, Read & Co. Inc..............................
            Lazard Freres & Co..................................
            Chemical Securities Inc.............................
                                                                    -------------
              Total.............................................    $ 100,000,000
                                                                    -------------
                                                                    -------------
</TABLE>
 
     The Underwriters have advised the Company that they propose initially to
offer the Debentures to the public at the public offering price set forth on the
cover page of this Prospectus and to certain dealers at such price less a
concession not in excess of    % of the principal amount of the Debentures. The
Underwriters may allow, and such dealers may reallow, a discount not in excess
of    % of the principal amount of the Debentures on sales to certain other
dealers. After the initial public offering, the public offering price,
concession and discount may be changed.
 
   
     The Company has agreed not to offer, sell, contract to sell or otherwise
dispose of any debt securities of the Company in an offering to the public (or
in a private offering where holders of the debt securities are granted rights to
have such debt securities registered under the Securities Act or to exchange
such debt securities for other debt securities that are so registered) for a
period of 120 days from the date of this Prospectus without the prior consent of
Salomon Brothers Inc.
    
 
                                       68
<PAGE>   71
 
     Chemical Securities Inc. is an affiliate of Texas Commerce Bank N.A. which
is an agent bank and a lender to the Company under the Bank Facility. Texas
Commerce Bank N.A. will receive its proportionate share of the repayment by the
Company of borrowings outstanding under the Bank Facility from the proceeds of
the offering of the Debentures. In addition, Texas Commerce Bank N.A., or its
affiliates, participates on a regular basis in various general financing and
banking transactions for the Company. Mr. Marc J. Shapiro, who is the Chairman
and Chief Executive Officer of Texas Commerce Bank N.A., is a director of the
Company.
 
     From time to time an affiliate of Salomon Brothers Inc conducts business
with the Company on customary terms and in the ordinary course of business.
 
     The Company has agreed to indemnify the Underwriters against certain civil
liabilities, including certain liabilities under the Securities Act.
 
                           VALIDITY OF THE DEBENTURES
 
   
     The validity of the Debentures will be passed upon for the Company by
Andrews & Kurth L.L.P., Houston, Texas. Certain legal matters will be passed
upon for the Underwriters by Cravath, Swaine & Moore, New York, New York.
    
 
                                    EXPERTS
 
     The financial statements as of December 31, 1993 and 1992 and for each of
the three years in the period ended December 31, 1993 included in this
Prospectus have been so included in reliance on the report of Price Waterhouse,
independent accountants, given on the authority of said firm as experts in
auditing and accounting.
 
     Certain information appearing in this Prospectus regarding the estimated
quantities of reserves of the oil and natural gas properties owned by the
Company, the future net revenues from such reserves and the present value
thereof is based on estimates of such reserves and present values prepared by
Ryder Scott Company, independent petroleum engineers.
 
                                       69
<PAGE>   72
 
                         INDEX TO FINANCIAL STATEMENTS
 
   
<TABLE>
<CAPTION>
                                                                                         PAGE
                                                                                       ------
<S>                                                                                    <C>
Audited Financial Statements
          Report of Independent Accountants............................................    F-2
          Consolidated Statement of Operations for the years ended December 31, 1993,
         1992 and 1991.................................................................    F-3
          Consolidated Balance Sheet -- December 31, 1993 and 1992.....................    F-4
          Consolidated Statement of Cash Flows for the years ended December 31, 1993,
         1992 and 1991.................................................................    F-5
          Consolidated Statement of Shareholders' Equity for the years ended December
         31, 1993, 1992 and 1991.......................................................    F-6
          Notes to Consolidated Financial Statements...................................    F-7
Unaudited Financial Information
          Supplemental Information to the Consolidated Financial Statements............   F-26
Unaudited Financial Statements
          Consolidated Statement of Operations for the three months ended March 31,
         1994
            and 1993...................................................................   F-35
          Consolidated Balance Sheet -- March 31, 1994 and December 31, 1993...........   F-36
          Consolidated Statements of Cash Flows for the three months ended March 31,
         1994 and 1993.................................................................   F-37
          Consolidated Statements of Shareholders' Equity for the three months ended
         March 31, 1994 and 1993.......................................................   F-38
          Notes to Consolidated Financial Statements...................................   F-39
</TABLE>
    
 
                                       F-1
<PAGE>   73
 
                       REPORT OF INDEPENDENT ACCOUNTANTS
 
To the Board of Directors and Shareholders of
Santa Fe Energy Resources, Inc.
 
     In our opinion, the accompanying consolidated balance sheet and the related
consolidated statements of operations, of cash flows, and of shareholders'
equity present fairly, in all material respects, the financial position of Santa
Fe Energy Resources, Inc. and its subsidiaries at December 31, 1993 and 1992,
and the results of their operations and their cash flows for each of the three
years in the period ended December 31, 1993, in conformity with generally
accepted accounting principles. These financial statements are the
responsibility of the Company's management; our responsibility is to express an
opinion on these financial statements based on our audits. We conducted our
audits of these statements in accordance with generally accepted auditing
standards which require that we plan and perform the audit to obtain reasonable
assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements, assessing the
accounting principles used and significant estimates made by management, and
evaluating the overall financial statement presentation. We believe that our
audits provide a reasonable basis for the opinion expressed above.
 
PRICE WATERHOUSE
 
Houston, Texas
February 18, 1994
 
                                       F-2
<PAGE>   74
                        SANTA FE ENERGY RESOURCES, INC.
                      CONSOLIDATED STATEMENT OF OPERATIONS
                (IN MILLIONS OF DOLLARS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
                                                                                        YEAR ENDED DECEMBER 31,
                                                                                    -------------------------------
                                                                                       1993      1992        1991
                                                                                    ---------  ---------  ---------
<S>                                                                                 <C>        <C>        <C>
Revenues
    Crude oil and liquids.........................................................  $   307.3  $   333.6  $   320.3
    Natural gas...................................................................      107.8       74.8       47.9
    Natural gas systems...........................................................        8.2        7.3         --
    Crude oil marketing and trading...............................................        9.9        5.9        7.2
    Other.........................................................................        3.7        5.9        4.4
                                                                                    ---------  ---------  ---------
                                                                                        436.9      427.5      379.8
                                                                                    ---------  ---------  ---------
Costs and Expenses
    Production and operating......................................................      163.8      153.4      134.6
    Oil and gas systems and pipelines.............................................        4.2        3.2         --
    Exploration, including dry hole costs.........................................       31.0       25.5       18.7
    Depletion, depreciation and amortization......................................      152.7      146.3      106.6
    Impairment of oil and gas properties..........................................       99.3         --         --
    General and administrative....................................................       32.3       30.9       27.8
    Taxes (other than income).....................................................       27.3       24.3       27.2
    Restructuring charges.........................................................       38.6         --         --
    Loss (gain) on disposition of oil and gas properties..........................        0.7      (13.6)       0.5
                                                                                    ---------  ---------  ---------
                                                                                        549.9      370.0      315.4
                                                                                    ---------  ---------  ---------
Income (Loss) from Operations.....................................................     (113.0)      57.5       64.4
    Interest income...............................................................        9.1        2.3        2.3
    Interest expense..............................................................      (45.8)     (55.6)     (47.3)
    Interest capitalized..........................................................        4.3        4.9        7.7
    Other income (expense)........................................................       (4.8)     (10.0)       5.6
                                                                                    ---------  ---------  ---------
Income (Loss) Before Income Taxes.................................................     (150.2)      (0.9)      32.7
    Income taxes..................................................................       73.1       (0.5)     (14.2)
                                                                                    ---------  ---------  ---------
Net Income (Loss).................................................................      (77.1)      (1.4)      18.5
Preferred dividend requirement....................................................       (7.0)      (4.3)        --
                                                                                    ---------  ---------  ---------
Earnings (Loss) Attributable to Common Shares.....................................  $   (84.1) $    (5.7) $    18.5
                                                                                    =========  =========  =========
Earnings (Loss) Attributable to Common Shares Per Share...........................  $   (0.94) $   (0.07) $    0.29
                                                                                    =========  =========  =========
Weighted Average Number of Shares Outstanding (in millions).......................       89.7       79.0       63.8
                                                                                    =========  =========  =========
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 



                                      F-3


<PAGE>   75
                        SANTA FE ENERGY RESOURCES, INC.
                           CONSOLIDATED BALANCE SHEET
                            (IN MILLIONS OF DOLLARS)

<TABLE>
<CAPTION>
                                                                                               DECEMBER 31,
                                                                                        --------------------------
                                                                                            1993          1992
                                                                                        -----------   ------------
<S>                                                                                     <C>           <C>
                                        ASSETS
Current Assets
    Cash and cash equivalents.........................................................  $        4.8  $       83.8
    Accounts receivable...............................................................          87.4          90.0
    Income tax refund receivable......................................................            --          16.2
    Inventories.......................................................................           8.7           4.8
    Assets held for sale..............................................................          59.5            --
    Other current assets..............................................................          12.2          10.6
                                                                                        ------------  ------------
                                                                                               172.6         205.4
                                                                                        ------------  ------------
Investment in Hadson Corporation......................................................          56.2            --
                                                                                        ------------  ------------
Properties and Equipment, at cost
    Oil and gas (on the basis of successful efforts accounting).......................       2,064.3       2,330.9
    Other.............................................................................          27.3          26.8
                                                                                        ------------  ------------
                                                                                             2,091.6       2,357.7
    Accumulated depletion, depreciation, amortization and impairment..................      (1,258.9)     (1,255.9)
                                                                                        ------------  ------------
                                                                                               832.7       1,101.8
                                                                                        ------------  ------------
Other Assets
    Receivable under gas balancing arrangements.......................................           3.9           7.7
    Other.............................................................................          11.5          22.3
                                                                                        ------------  ------------
                                                                                                15.4          30.0
                                                                                        ------------  ------------
                                                                                        $    1,076.9  $    1,337.2
                                                                                        ============  ============
                         LIABILITIES AND SHAREHOLDERS' EQUITY
Current Liabilities
    Accounts payable..................................................................  $       93.5  $       90.9
    Interest payable..................................................................          10.2          11.0
    Current portion of long-term debt.................................................          44.3          53.4
    Other current liabilities.........................................................          18.1          17.1
                                                                                        ------------  ------------
                                                                                               166.1         172.4
                                                                                        ------------  ------------
Long-Term Debt........................................................................         405.4         492.8
                                                                                        ------------  ------------
Deferred Revenues.....................................................................           8.6          13.0
                                                                                        ------------  ------------
Other Long-Term Obligations...........................................................          48.8          43.4
                                                                                        ------------  ------------
Deferred Income Taxes.................................................................          44.4         119.0
                                                                                        ------------  ------------
Commitments and Contingencies (Note 12)...............................................            --            --
                                                                                        ------------  ------------
Convertible Preferred Stock, $0.01 par value, 5.0 million shares authorized, issued
  and outstanding.....................................................................          80.0          80.0
                                                                                        ------------  ------------
Shareholders' Equity
    Preferred stock, $0.01 par value, 45.0 million shares authorized, none issued.....            --            --
    Common stock, $0.01 par value, 200.0 million shares authorized....................           0.9           0.9
    Paid-in capital...................................................................         496.9         494.3
    Unamortized restricted stock awards...............................................          (0.1)         (0.4)
    Accumulated deficit...............................................................        (173.8)        (78.0)
    Foreign currency translation adjustment...........................................          (0.3)         (0.2)
                                                                                        ------------  ------------
                                                                                               323.6         416.6
                                                                                        ------------  ------------
                                                                                        $    1,076.9  $    1,337.2
                                                                                        ============  ============
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 



                                      F-4

<PAGE>   76
                        SANTA FE ENERGY RESOURCES, INC.
                      CONSOLIDATED STATEMENT OF CASH FLOWS
                            (IN MILLIONS OF DOLLARS)

<TABLE>
<CAPTION>
                                                                                     YEAR ENDED DECEMBER 31,
                                                                                ----------------------------------
                                                                                   1993        1992        1991
                                                                                ----------  ----------  ----------
<S>                                                                             <C>         <C>         <C>
Operating Activities:
    Net income (loss).........................................................  $    (77.1) $     (1.4) $     18.5
    Adjustments to reconcile net income (loss) to net cash provided by
      operating activities:
        Depletion, depreciation and amortization..............................       152.7       146.3       106.6
        Impairment of oil and gas properties..................................        99.3          --          --
        Restructuring charges.................................................        27.8          --          --
        Deferred income taxes.................................................       (71.9)       (6.3)        1.5
        Net loss (gain) on disposition of properties..........................         0.7       (13.6)       (5.5)
        Exploratory dry hole costs............................................         8.9         4.7         3.8
        Expenses related to acquisition of Adobe Resources Corporation........          --        10.9          --
        Other.................................................................         4.2         2.0         0.3
    Changes in operating assets and liabilities:
        Decrease (increase) in accounts receivable............................        12.4        (8.3)       23.6
        Decrease (increase) in inventories....................................        (3.8)        0.3         5.6
        Increase (decrease) in accounts payable...............................        (2.6)        5.9       (24.9)
        Increase (decrease) in interest payable...............................        (0.8)        0.4         0.2
        Decrease in income taxes payable......................................        (0.6)       (0.4)       (3.6)
        Net change in other assets and liabilities............................        11.0         1.0         2.3
                                                                                ----------  ----------  ----------
Net Cash Provided by Operating Activities.....................................       160.2       141.5       128.4
                                                                                ----------  ----------  ----------
Investing Activities:
    Capital expenditures, including exploratory dry hole costs................      (127.0)      (76.8)     (108.1)
    Acquisitions of producing properties, net of related debt.................        (4.4)      (14.2)      (28.5)
    Acquisition of Adobe Resources Corporation................................          --       (11.9)         --
    Acquisition of Santa Fe Energy Partners, L.P..............................       (28.3)         --          --
    Net proceeds from sales of properties.....................................        39.9        89.1        22.1
    Increase in partnership interest due to reinvestment......................        (1.6)       (2.1)       (2.7)
                                                                                ----------  ----------  ----------
Net Cash Used in Investing Activities.........................................      (121.4)      (15.9)     (117.2)
                                                                                ----------  ----------  ----------
Financing Activities:
    Net change in short-term debt.............................................          --        (4.6)       (4.2)
    Proceeds from long-term borrowings........................................          --         5.0          --
    Principal payments on long-term borrowings................................       (41.5)      (55.5)      (16.3)
    Net change in revolving credit agreement..................................       (55.0)         --          --
    Cash dividends paid to others.............................................       (21.3)      (14.9)      (10.2)
                                                                                ----------  ----------  ----------
Net Cash Used in Financing Activities.........................................      (117.8)      (70.0)      (30.7)
                                                                                ----------  ----------  ----------
Net Increase (Decrease) in Cash and Cash Equivalents..........................       (79.0)       55.6       (19.5)
Cash and Cash Equivalents at Beginning of Year................................        83.8        28.2        47.7
                                                                                ----------  ----------  ----------
Cash and Cash Equivalents at End of Year......................................  $      4.8  $     83.8  $     28.2
                                                                                ==========  ==========  ==========
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 



                                      F-5


<PAGE>   77
                        SANTA FE ENERGY RESOURCES, INC.
                 CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY
                        (SHARES AND DOLLARS IN MILLIONS)
 

<TABLE>                                       
<CAPTION>                                     
                                                                                                         FOREIGN
                                                                            UNAMORTIZED                  CURRENCY
                                                 COMMON STOCK               RESTRICTED                   TRANSLA-       TOTAL   
                                                ---------------   PAID-IN      STOCK      ACCUMULATED      TION     SHAREHOLDERS'
                                                SHARES   AMOUNT   CAPITAL     AWARDS        DEFICIT     ADJUSTMENT     EQUITY   
                                                ------   ------   -------  ------------   -----------   ----------  -------------
<S>                                               <C>     <C>     <C>         <C>          <C>            <C>          <C>      
Balance at December 31, 1990..................    63.8    $0.6    $ 282.4     $    --      $   (67.2)     $   --       $ 215.8  
  Net income..................................      --      --         --          --           18.5          --          18.5  
  Issuance of common stock....................     0.3      --        2.5        (1.4)            --          --           1.1  
  Dividends declared..........................      --      --         --          --          (10.3)         --         (10.3) 
                                                  ----    ----    -------     -------      ---------      ------       -------
Balance at December 31, 1991..................    64.1     0.6      284.9        (1.4)         (59.0)         --         225.1  
  Issuance of common stock                                                                                                      
    Acquisition of Adobe                                                                                                        
     Resources Corporation....................    24.9     0.3      205.3          --             --          --         205.6  
    Employee stock compensation and savings                                                                                     
     plans....................................     0.5      --        4.1        (0.5)            --          --           3.6  
  Amortization of restricted stock awards.....      --      --         --         1.5             --          --           1.5  
  Foreign currency translation adjustments....      --      --         --          --             --        (0.2)         (0.2) 
  Net loss....................................      --      --         --          --           (1.4)         --          (1.4) 
  Dividends declared..........................      --      --         --          --          (17.6)         --         (17.6) 
                                                  ----    ----    -------     -------      ---------      ------       -------
Balance at December 31, 1992..................    89.5     0.9      494.3        (0.4)         (78.0)       (0.2)        416.6   
  Issuance of common stock                                                                                                       
    Employee stock compensation and savings                                                                                      
     plans....................................     0.3      --        2.6        (0.1)            --          --           2.5   
  Amortization of restricted                                                                                                     
   stock awards...............................      --      --         --         0.4             --          --           0.4   
  Pension liability adjustment................      --      --         --          --           (0.9)         --          (0.9)  
  Foreign currency transaction adjustments....      --      --         --          --             --        (0.1)         (0.1)  
  Net loss....................................      --      --         --          --          (77.1)         --         (77.1)  
  Dividends declared..........................      --      --         --          --          (17.8)         --         (17.8)
                                                  ----    ----    -------     -------      ---------      ------       -------
Balance December 31, 1993.....................    89.8    $0.9    $ 496.9     $  (0.1)     $  (173.8)     $ (0.3)      $ 323.6   
                                                  ====    ====    =======     =======      =========      ======       =======
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
                                                                   



                                      F-6

<PAGE>   78
                        SANTA FE ENERGY RESOURCES, INC.
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
(1)  ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
  Principles of Consolidation
 
    The consolidated financial statements of Santa Fe Energy Resources, Inc.
("Santa Fe" or the "Company") and its subsidiaries include the accounts of all
wholly owned subsidiaries. The accounts of Santa Fe Energy Partners, L.P., (the
"Partnership") are included on a proportional basis until September 1993 when
Santa Fe purchased all the Partnership's outstanding Depositary Units and
undeposited LP Units other than those units held by Santa Fe and its affiliates.
 
    On September 27, 1993 the Company exercised its right under the Agreement of
Limited Partnership to purchase all of the Partnership's outstanding Depositary
Units and undeposited LP Units, other than those units held by the Company and
its affiliates, at a redemption price of $4.9225 per unit. Consideration for the
5,749,500 outstanding units totalled $28.3 million. The acquisition of the units
has been accounted for as a purchase and the results of operations of the
Partnership attributable to the units acquired is included in the Company's
results of operations with effect from October 1, 1993. The purchase price has
been allocated primarily to oil and gas properties.
 
    References herein to the "Company" or "Santa Fe" relate to Santa Fe Energy
Resources, Inc., individually or together with its consolidated subsidiaries;
references to the "Partnership" relate to Santa Fe Energy Partners, L.P.
 
    All significant intercompany accounts and transactions have been eliminated.
Prior years' financial statements include certain reclassifications to conform
to current year's presentation.
 
  Oil and Gas Operations
 
    The Company follows the successful efforts method of accounting for its oil
and gas exploration and production activities. Costs (both tangible and
intangible) of productive wells and development dry holes, as well as the cost
of prospective acreage, are capitalized. The costs of drilling and equipping
exploratory wells which do not find proved reserves are expensed upon
determination that the well does not justify commercial development. Other
exploratory costs, including geological and geophysical costs and delay rentals,
are charged to expense as incurred.
 
    Depletion and depreciation of proved properties are computed on an
individual field basis using the unit-of-production method based upon proved oil
and gas reserves attributable to the field. Certain other oil and gas properties
are depreciated on a straight-line basis. Individual proved properties are
reviewed periodically to determine if the carrying value of the field exceeds
the estimated undiscounted future net revenues from proved oil and gas reserves
attributable to the field. Based on this review and the continuing evaluation of
development plans, economics and other factors, if appropriate, the Company
records impairments (additional depletion and depreciation) to the extent that
the carrying value exceeds the estimated undiscounted future net revenues. Such
impairments totaled $99.3 million in 1993 and there were none in 1992 and 1991.
 
    The Company provides for future abandonment and site restoration costs with
respect to certain of its oil and gas properties. The Company estimates that
with respect to these properties such future costs total approximately $24.7
million and such amount is being accrued over the expected life of the
properties. At December 31, 1993 Accumulated Depletion, Depreciation,
Amortization and Impairment includes $14.6 million with respect to such costs.
 
    The value of undeveloped acreage is aggregated and the portion of such costs
estimated to be nonproductive, based on historical experience, is amortized to
expense over the average holding period. Additional amortization may be
recognized based upon periodic assessment of prospect evaluation results. The
cost of properties determined to be productive is transferred to proved
 



                                      F-7

<PAGE>   79
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

properties; the cost of properties determined to be nonproductive is charged to
accumulated amortization.
 
    Maintenance and repairs are expensed as incurred; major renewals and
improvements are capitalized. Gains and losses arising from sales of properties
are included in income currently.
 
  Revenue Recognition
 
    Revenues from the sale of petroleum produced are generally recognized upon
the passage of title, net of royalties and net profits interests. Crude oil
revenues include the effect of hedging transactions; see Note 12 -- Commitments
and Contingencies -- Crude Oil Hedging Program. Crude oil revenues also include
the value of crude oil consumed in operations with an equal amount charged to
operating expenses. Such amounts totalled $15.4 million in 1991, $4.8 million in
1992 and $1.2 million in 1993.
 
    Revenues from natural gas production are generally recorded using the
entitlement method, net of royalties and net profits interests. Sales proceeds
in excess of the Company's entitlement are included in Deferred Revenues and the
Company's share of sales taken by others is included in Other Assets. At
December 31, 1993 the Company's deferred revenues for sales proceeds received in
excess of the Company's entitlement was $6.8 million with respect to 5.2 MMcf
and the asset related to the Company's share of sales taken by others was $3.9
million with respect to 2.7 MMcf. Natural gas revenues are net of the effect of
hedging transactions; see Note 12 -- Commitments and Contingencies -- Natural
Gas Hedging Program.
 
    Revenues from crude oil marketing and trading represent the gross margin
resulting from such activities. Revenues from such activities are net of costs
of sales of $210.5 million in 1991, $247.3 million in 1992 and $225.9 million in
1993.
 
    Revenues from natural gas systems are net of the cost of natural gas
purchased and resold. Such costs totalled $43.8 million in 1992 and $49.9
million in 1993.
 
  Earnings Per Share
 
    Earnings per share are based on the weighted average number of common shares
outstanding during the year.
 
  Accounts Receivable
 
    Accounts Receivable relates primarily to sales of oil and gas and amounts
due from joint interest partners for expenditures made by the Company on behalf
of such partners. The Company reviews the financial condition of potential
purchasers and partners prior to signing sales or joint interest agreements. At
December 31, 1993 and 1992 the Company's allowance for doubtful accounts
receivable, which is reflected in the consolidated balance sheet as a reduction
in accounts receivable, totaled $6.3 million and $5.0 million, respectively.
Accounts receivable totalling $0.2 million, $1.1 million and $0.1 million were
written off as uncollectible in 1991, 1992 and 1993, respectively.
 
  Inventories
 
    Inventories are valued at the lower of cost (average price or first.in,
first.out) or market. Crude oil inventories at December 31, 1993 and 1992 were
$1.1 million and $1.5 million, respectively, and materials and supplies
inventories at such dates were $7.6 million and $3.3 million, respectively.
 
  Environmental Expenditures
 
    Environmental expenditures relating to current operations are expensed or
capitalized, as appropriate, depending on whether such expenditures provide
future economic benefits. Liabilities 
 



                                      F-8

<PAGE>   80
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

are recognized when the expenditures are considered probable and can be
reasonably estimated. Measurement of liabilities is based on currently enacted
laws and regulations, existing technology and undiscounted site-specific costs.
Generally, such recognition coincides with the Company's commitment to a formal
plan of action.
 
  Income Taxes
 
    The Company follows the asset and liability approach to accounting for
income taxes. Deferred tax assets and liabilities are determined using the tax
rate for the period in which those amounts are expected to be received or paid,
based on a scheduling of temporary differences between the tax bases of assets
and liabilities and their reported amounts. Under this method of accounting for
income taxes, any future changes in income tax rates will affect deferred income
tax balances and financial results.
 
(2) CORPORATE RESTRUCTURING PROGRAM
 
    In October 1993 the Company's Board of Directors endorsed a broad corporate
restructuring program that focuses on the disposition of non-core assets, the
concentration of capital spending in core areas, the refinancing of certain
long-term debt and the elimination of the payment of its $0.04 per share
quarterly dividend on common stock.
 
    In implementing the restructuring program the Company recorded a
nonrecurring charge of $38.6 million in 1993 comprised of (1) losses on property
dispositions of $27.8 million: (2) long-term debt repayment penalties of $8.6
million; and (3) accruals for certain personnel benefits and related costs of
$2.2 million.
 
    The Company's non-core asset disposition program includes the sale of its
natural gas gathering and processing assets to Hadson Corporation ("Hadson"),
the sale to Vintage Petroleum, Inc. of certain southern California and Gulf
Coast oil and gas producing properties and the sale to Bridge Oil (U.S.A.) Inc.
("Bridge") of certain Mid-Continent and Rocky Mountain oil and gas producing
properties and undeveloped acreage. The Company also plans to dispose of other
non-core oil and gas properties during 1994.
 
    In 1994 the Company intends to refinance a portion of its existing 
long-term debt and is currently evaluating a combination of debt and equity 
financing arrangements with which to effect the refinancing.
 
    Sale to Hadson.  In December 1993 the Company completed a transaction with
Hadson under the terms of which the Company sold the common stock of Adobe Gas
Pipeline Company ("AGPC"), a wholly-owned subsidiary which held the Company's
natural gas gathering and processing assets, to Hadson in exchange for Hadson
11.25% preferred stock with a face value of $52.0 million and 40% of Hadson's
common stock. In addition, the Company signed a seven-year gas sales contract
under the terms of which Hadson will market substantially all of the Company's
domestic natural gas production at market prices as defined by published monthly
indices for relevant production locations.
 
    The Company accounted for the sale as a non-monetary transaction and the
investment in Hadson has been valued at $56.2 million, the carrying value of the
Company's investment in AGPC. The Company's investment in Hadson is being
accounted for on the equity basis. At December 31, 1993 the Company's investment
in Hadson's common stock exceeded the net book value attributable to such common
shares by approximately $11.3 million. The Company's income from operations for
1993 includes $1.6 million attributable to the assets sold to Hadson.
 
    Sale to Vintage.  In November 1993 the Company completed the sale of certain
southern California and Gulf Coast producing properties for net proceeds
totalling $41.3 million in cash, $31.5
 



                                      F-9

<PAGE>   81
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

million of which was collected in 1993. The Company's income from operations for
1993 includes $2.7 million attributable to the assets sold to Vintage.
 
    Sale to Bridge.  In December 1993 the Company signed a Purchase and Sales
Agreement with Bridge under the terms of which Bridge will purchase certain
Mid-Continent and Rocky Mountain producing and nonproducing oil and gas
properties. The sale price of $51.0 million, subject to certain adjustments,
will be received by the Company either in the form of cash plus 10% of the
outstanding shares of Bridge, following the contemplated public offering of that
stock in the first quarter of 1994, or entirely in cash. The transaction is
expected to close in the second quarter of 1994.
 
    The net book value of these assets is included in Assets Held for Sale at
December 31, 1993. The Company's income from operations for 1993 includes $5.8
million attributable to the assets to be sold to Bridge.
 
    Other Dispositions.  The Company has identified certain other oil and gas
properties which it plans to dispose of in 1994. The estimated realizable value
of these properties, $1.0 million, is included in Assets Held for Sale at
December 31, 1993. In the first quarter of 1994 the Company sold its interest in
certain other oil and gas properties for $8.3 million.
 
(3)  MERGER WITH ADOBE RESOURCES CORPORATION
 
    On May 19, 1992 Adobe Resources Corporation ("Adobe"), an oil and gas
exploration and production company, was merged with and into Santa Fe (the
"Merger"). The acquisition has been accounted for as a purchase and the results
of operations of the properties acquired (the "Adobe Properties") are included
in Santa Fe's results of operations effective June 1, 1992.
 
    To consummate the Merger, the Company issued 24.9 million shares of common
stock valued at $205.5 million, 5.0 million shares of convertible preferred
stock valued at $80.0 million, assumed long-term bank debt and other liabilities
of $140.0 million and $35.0 million, respectively, and incurred $13.8 million in
related costs. The Company also recorded a $19.7 million deferred tax liability
with respect to the difference between the book and tax basis in the assets
acquired. Certain merger.related costs incurred by Adobe and paid by Santa Fe
totaling $10.9 million were charged to income in the second quarter of 1992.
 
    The Merger constituted a "change of control" as defined in certain of the
Company's employee benefit plans and employment agreements (see Notes 10 and
12).
 
    In a separate transaction in January 1992, the Company purchased three
producing properties from Adobe for $14.2 million.
 
(4)  SANTA FE ENERGY TRUST
 
    In November 1992 5,725,000 Depository Units ("Trust Units"), each consisting
of beneficial ownership of one unit of undivided beneficial interest in the
Santa Fe Energy Trust (the "Trust") and a $20 face amount beneficial ownership
interest in a $1,000 face amount zero coupon United States Treasury obligation
maturing on or about February 15, 2008, were sold in a public offering. The
Trust consists of certain oil and gas properties conveyed by Santa Fe. A total
of $114.5 million was received from public investors, of which $38.7 million was
used to purchase the Treasury obligations and $5.7 million was used to pay
underwriting commissions and discounts. Santa Fe received the remaining $70.1
million and 575,000 Trust Units. A portion of the proceeds received by the
Company was used to retire $30.0 million of the debt incurred in connection with
the Merger and the remainder will be used for general corporate purposes
including possible acquisitions.
 



                                      F-10

<PAGE>   82
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

    For any calendar quarter ending on or prior to December 31, 2002, the
Trust will receive additional royalty payments to the extent that it needs such 
payments to distribute $0.40 per Depository Unit per quarter. The source of such
additional royalty payments, if needed, will be limited to the Company's
remaining royalty interest in certain of the properties conveyed to the Trust.
If such additional payments are made, certain proceeds otherwise payable to the
Trust in subsequent quarters may be reduced to recoup the amount of such
additional payments. The aggregate amount of the additional royalty payments
(net of any amounts recouped) will be limited to $20.0 million on a revolving
basis.
 
    At December 31, 1993 the Company held 575,000 Trust Units. At December 31,
1993 Accounts Receivable includes $0.2 million due from the Trust and Accounts
Payable includes $1.9 million due to the Trust. In the first quarter of 1994 the
Company sold the Trust Units for $11.3 million, the Company's investment in the
Trust Units, $10.4 million, is included in Assets Held for Sale at December 31,
1993.
 
(5)  ACQUISITIONS OF OIL AND GAS PROPERTIES
 
    In January 1991 the Company completed the purchase of Mission Operating
Partnership, L.P.'s ("Mission") interest in certain oil and gas properties,
effective from November 1, 1990, for approximately $55.0 million. The Company
formed a partnership, with an institutional investor as a limited partner, to
acquire and operate the properties. The investor contributed $27.5 million for a
50% interest in the partnership, which will be reduced to 15% upon the occurence
of payout. Payout will occur when the investor has received distributions from
the partnership totalling an amount equal to its original contribution plus a
12% rate of return on such contribution. Prior to payout, the Company will bear
100% of the capital expenditures of the partnership. Under the terms of the
partnership agreement a total of $36.8 million must be expended on development
of the property by the year 2000, $12.4 million of which had been expended
through the end of 1993.
 
    The Company funded $16.8 million of its share of the purchase of the
properties with the assumption of a term loan and paid the remainder from
working capital. The Company has given the lender the equivalent of an
overriding royalty interest in certain production from the properties. The
royalty is payable only if such production occurs and is limited to a maximum of
$3.0 million.
 
    In June 1991 the Company acquired a 10% interest in a producing field in
Argentina for approximately $18.3 million and in October 1991 purchased an
additional 8% interest in the field for approximately $15.7 million. The Company
financed $17.8 million of the total purchase price with loans from an Argentine
bank. The Company has agreed to spend approximately $16.7 million over a
five-year period on development and maintenance of the field.
 
(6)  CASH FLOWS
 
    The Company considers all highly liquid investments with a maturity of three
months or less when purchased to be cash equivalents.
 
    The Merger included certain non-cash investing and financing activities not
reflected in the Statement of Cash Flows as follows (in millions of dollars):

<TABLE>
          <S>                                                                  <C>    
          Common stock issued.............................................      205.5 
          Convertible preferred stock issued..............................       80.0 
          Deferred tax liability..........................................       19.7 
          Long-term debt..................................................      140.0 
          Assets acquired, other than cash, net of liabilities assumed....     (457.1)
                                                                               ------ 
          Cash paid.......................................................      (11.9)
                                                                               ====== 
</TABLE> 
                                                                               
                                                                               
                                                                               
                                      F-11

<PAGE>   83
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

    In 1991, the Company sold a producing property for $0.9 million in cash
and a note receivable for $1.2 million. In 1991, the Partnership purchased
certain  surface properties for $6.2 million, $5.5 million of which was funded
by the issuance of promissory notes and the Company also purchased producing
properties for $63.1 million, $34.6 million of which was funded with debt (see
Notes 5 and 7).
 
    The Company made interest payments of $45.5 million, $49.0 million and $48.0
million in 1991, 1992 and 1993, respectively. In 1991, 1992 and 1993, the
Company made tax payments of $18.4 million, $4.4 million and $5.0 million,
respectively, and in 1993 received refunds of $4.1 million, primarily related to
the audit of prior years' returns.
 
(7)  FINANCING AND DEBT
 
    Long-term debt at December 31, 1993 and 1992 consisted of (in millions of
dollars):
 

<TABLE>
<CAPTION>
                                                                                      DECEMBER 31,
                                                                      --------------------------------------------
                                                                              1993                    1992
                                                                      --------------------    --------------------
                                                                      CURRENT    LONG-TERM    CURRENT    LONG-TERM
                                                                      -------    ---------    -------   ----------
<S>                                                                     <C>         <C>         <C>         <C>
SFER
    Senior Notes...................................................     30.0        310.0       25.0        340.0
    Revolving and Term Credit Agreement............................      1.3         48.7       12.8         92.2
    Notes Payable to Bank..........................................      3.8         11.3        2.5         15.1
    Term.Loan......................................................      1.2         11.4        1.2         12.6
Partnership
    Credit Agreement...............................................      8.0         24.0       11.1         29.5
    Promissory Notes...............................................       --           --        0.8          3.4
                                                                        ----        -----       ----        -----
                                                                        44.3        405.4       53.4        492.8
                                                                        ====        =====       ====        =====
</TABLE>
 
    Aggregate total maturities of long-term debt during the next five years are
as follows: 1994 -- $44.3 million; 1995 -- $78.9 million; 1996 -- $73.5 million;
1997 -- $43.0 million; and 1998 -- $35.0 million. These maturities will be
affected by the refinancing discussed in Note 2 -- Corporate Restructuring
Program.
 
    On April 11, 1990 SFER issued $365.0 million of serial unsecured Senior
Notes with interest rates averaging 10.35%. The Note Agreement pursuant to which
the Senior Notes were issued includes certain covenants which, among other
things, restrict the Company's ability to incur additional indebtedness and to
pay dividends. Under the terms of the Note Agreement, at December 31, 1993 the
Company had the ability to incur at least $64.0 million in additional long-term
debt and pay $26.0 million in dividends and other restricted payments. At
December 31, 1993 $340.0 million in Senior Notes were outstanding and are to be
repaid, $30.0 million in 1994 and 1995, $35.0 million in 1996 through 1998 and
$25.0 million per year in 1999 through 2005.
 
    In January 1991 the Company executed a $16.8 million term.loan agreement,
with interest at 9.0%, in connection with the purchase of certain producing
properties from Mission. At December 31, 1993 $12.6 million was outstanding
under the terms of the agreement and is to be repaid $1.2 million in 1994 and
$11.4 million in 1995. The Company made principal payments on the loan totalling
$1.8 million in 1991, $1.2 million in 1992 and $1.2 million in 1993.
 
    In June 1991 the Company borrowed $10.4 million from an Argentine bank in
connection with the purchase of an interest in a producing oil field in
Argentina. The loan bore interest at the higher of 12% or the interbank offering
rate plus 2%. In October 1991 the Company borrowed an additional $7.8 million in
connection with the purchase of an additional interest in the field. The second
loan bore interest at the higher of rates ranging from 13.4% to 14.0% or the
London Interbank Offering 
 



                                      F-12

<PAGE>   84
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
Rate ("LIBOR") plus 2%. During 1993 the two loans were combined in a new loan 
which bears interest at the higher of 13.06% or LIBOR plus 2%.

    In connection with the Merger the Company entered into a $195.0 million
Revolving and Term Credit Agreement (the "Credit Agreement") with a group of
banks. Upon consummation of the Merger the Company drew down the $145.0 million
available under the term loan feature of the Credit Agreement and repaid the
$140.0 million of long-term debt assumed in the Merger. The borrowings under the
term loan feature of the Credit Agreement are secured by properties acquired in
the Merger. Interest rates on borrowings are determined from time to time and at
December 31, 1993 amounts outstanding under the term loan feature bore interest
at an average of 5.5% per annum.
 
    In April 1993 the term loan feature was amended to allow the Company to make
voluntary prepayments and reborrowings. At December 31, 1993 the balance
outstanding under the term loan feature was $50.0 million and the total amount
available under the term loan feature, including amounts then outstanding, was
$87.7 million. The amount available will be reduced, in semi.annual increments,
to $48.6 million in December 31, 1994 and $24.3 million at December 31, 1995.
The Credit Agreement expires December 31, 1996. In certain circumstances,
primarily related to the sale of properties securing the loans, the amount
available may be reduced or the Company may be required to make mandatory
repayments. The Company is currently negotiating an amendment to the Credit
Agreement which would extend the maturities and under certain circumstances
increase the amount available for borrowings.
 
    Under the revolving credit feature of the Credit Agreement the Company may
borrow and issue letters of credit totalling up to $50.0 million. Borrowings
under the revolving credit feature are unsecured but are subject to compliance
with covenants identical to existing covenants under the Company's other
long-term debt agreeements including covenants related to debt incurrence,
dividends and other restricted payments, investments and limitations on liens,
mergers and sales of assets. In addition, the Company must comply annually with
certain borrowing base coverage ratios relating to projected cash flows from oil
and gas revenues. The amount available under the revolving credit feature will
be reduced to $10.0 million on February 28, 1994 and this feature expires on
February 28, 1995. At December 31, 1993, the Company had $8.7 million in letters
of credit outstanding under the revolving credit feature of the Credit
Agreement.
 
    The Company has two uncommitted lines of credit totalling $35.0 million
which is used to meet short-term cash needs. Interest rates on borrowings under
this line of credit is typically lower than rates paid under the Credit
Agreement. At December 31, 1993 no amounts were outstanding under these lines of
credit.
 
    In December 1991 the Partnership issued two promissory notes for a total of
$5.5 million in connection with the purchase of certain surface lands. The
notes, which bore interest at 10.0%, were retired in 1993. The Company's
proportionate share of such debt at December 31, 1992 was $4.2 million.
 
    At December 31, 1993 and 1992 the Partnership had $32.0 million and $44.0
million, respectively, outstanding under the terms of long-term credit agreement
which expires in 1997. The Company's proportionate share of such debt totaled
$40.6 million at December 31, 1992. Interest on 65% of principal amount
outstanding is fixed at 10.13% with interest on the remaining amount outstanding
at floating rates which averaged 4.3% in 1993 and 5.46% in 1992. The credit
agreement imposes certain restrictions on future indebtedness and the transfer
or sale of principal properties and requires the maintenance of certain
financial ratios to avoid collateralization or default.
 



                                      F-13

<PAGE>   85
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
(8)  SEGMENT INFORMATION
 
    The principal business of the Company is oil and gas, which consists of the
acquisition, exploration and development of oil and gas properties and the
production and sale of crude oil and liquids and natural gas. Pertinent
information with respect to the Company's oil and gas business is presented in
the following table (in millions of dollars):
 

<TABLE>
<CAPTION>                                                         OIL AND GAS      
                                                 ---------------------------------------------
                                                                                        OTHER      GENERAL
                                                   U.S.      ARGENTINA    INDONESIA    FOREIGN    CORPORATE     TOTAL
                                                 --------    ---------    ---------    -------    ---------   ---------
<S>                                              <C>         <C>          <C>          <C>         <C>         <C>
1993
  Revenues.....................................    401.2         12.5          23.2         --           --        436.9
  Income (Loss) from Operations................    (33.6)         3.0         (13.4)     (18.4)       (50.6)      (113.0)
  Depletion, Depreciation, Amortization and
    Impairment.................................    218.8          3.6          21.2        6.7          1.7        252.0
  Additions to Property and Equipment..........    116.1          7.3          16.8        6.1          4.4        150.7
  Identifiable Assets at December 31...........    862.0         48.2          65.3        2.8         98.6      1,076.9
1992
  Revenues.....................................    400.0         13.9          13.6       --          --           427.5
  Income (Loss) from Operations................    100.6          2.5           2.3      (10.7 )      (37.2)        57.5
  Depletion, Depreciation and Amortization.....    136.7          3.7           2.7        1.6          1.6        146.3
  Additions to Property and Equipment..........    452.6          4.0          71.6        5.7          2.4        536.3
  Identifiable Assets at December 31...........  1,076.5         39.2          73.9        5.8        141.8      1,337.2
1991
  Revenues.....................................    376.1          3.7         --          --          --           379.8
  Income (Loss) from Operations................    103.7         (2.2)           .2       (2.5 )      (34.8)        64.4
  Depletion, Depreciation and Amortization.....    101.3          1.8         --            .7          2.8        106.6
  Additions to Property and Equipment..........    125.8         35.4         --           3.7          8.8        173.7
  Identifiable Assets at December 31...........    816.5         37.5            .2        3.9         53.8        911.9

</TABLE>
 
    Crude oil and liquids and natural gas accounted for more than 95% of
revenues in 1991, 1992 and 1993. The following table reflects sales revenues
from crude oil purchasers who accounted for more than 10% of the Company's crude
oil and liquids revenues (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                              YEAR ENDED DECEMBER 31,
                                                                             -------------------------
                                                                             1993       1992      1991
                                                                             ----       ----      ----
<S>                                                                          <C>        <C>       <C>
Texaco Trading and Transportation, Inc...................................      --       46.8      55.9
Celeron Corporation......................................................    56.8       56.3      45.6
Shell Oil Company........................................................    86.3         --        --

</TABLE>
 
    None of the Company's purchasers of natural gas accounted for more than 10%
of revenues in 1991, 1992 or 1993. The Company does not believe the loss of any
purchaser would have a material adverse effect on its financial position since
the Company believes alternative sales arrangements could be made on relatively
comparable terms.
 



                                      F-14

<PAGE>   86
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
(9)  CONVERTIBLE PREFERRED STOCK
 
    The convertible preferred stock issued in connection with the Merger is
non-voting and entitled to receive cumulative cash dividends at an annual rate
equivalent to $1.40 per share. The holders of the convertible preferred shares
may, at their option, convert any or all such shares into 1.3913 shares of the
Company's common stock. The Company may, at any time after the fifth anniversary
of the effective date of the Merger and upon the occurrence of a "Special
Conversion Event", convert all outstanding shares of convertible preferred stock
into common stock at the initial conversion rate of 1.3913 shares of common
stock, subject to certain adjustments, plus additional shares in respect to
accrued and unpaid dividends. A Special Conversion Event is deemed to have
occurred when the average daily closing price for a share of the Company's
common stock for 20 of 30 consecutive trading days equals or exceeds 125% of the
quotient of $20.00 divided by the then applicable conversion rate (approximately
$18.00 per share at a conversion rate of 1.3913).
 
    Upon the occurrence of the "First Ownership Change" of Santa Fe, each holder
of shares of convertible preferred stock shall have the right, at the holder's
option, to elect to have all of such holder's shares redeemed for $20.00 per
share plus accrued and unpaid interest and dividends. The First Ownership Change
shall be deemed to have occurred when any person or group, together with any
affiliates or associates, becomes the beneficial owner of 50% or more of the
outstanding common stock of Santa Fe.
 
(10)  SHAREHOLDERS' EQUITY
 
  Common Stock
 
    In 1991, 1992 and 1993 the Company issued 1.1 million previously unissued
shares of common stock in connection with certain employee benefit and
compensation plans. Also in 1992, the Company issued 24.9 million previously
unissued shares of common stock in connection with the Merger.
 
    The Company declared dividends to common shares of $0.16 per share in 1991
and 1992 and $0.12 per share in 1993.
 
  Preferred Stock
 
    The Board of Directors of the Company is empowered, without approval of the
shareholders, to cause shares of preferred stock to be issued in one or more
series, and to determine the number of shares in each series and the rights,
preferences and limitations of each series. Among the specific matters which may
be determined by the Board of Directors are: the annual rate of dividends; the
redemption price, if any; the terms of a sinking or purchase fund, if any; the
amount payable in the event of any voluntary liquidation, dissolution or winding
up of the affairs of the Company; conversion rights, if any; and voting powers,
if any.
 
  Accumulated Deficit
 
    At December 31, 1993 Accumulated Deficit included dividends in excess of
retained earnings of $89.8 million.
 
  1990 Incentive Stock Compensation Plan
 
    The Company has adopted the Santa Fe Energy Resources 1990 Incentive Stock
Compensation Plan (the "Plan") under the terms of which the Company may grant
options and awards with respect to no more than 5,000,000 shares of common stock
to officers and key employees.
 
    Options granted in 1991 and prior are fully vested and expire in 2000.
Options granted in 1992 have a ten year term and vest as to 33.33 percent one
year after grant, as to a cumulative 66.67
 



                                      F-15

<PAGE>   87
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

percent two years after grant and as to the entire amount three years after
grant. The options granted in 1993 have a ten year term and vest as to 50
percent 5 years after grant, as to a cumulative 75 percent 6 years after grant
and as to the entire amount 7 years after grant. The options are exercisable on
an accelerated basis beginning one year and ending three years after grant in
certain circumstances. If the market value per share of the Company's common
stock (sustained in all events for at least 60 days) exceeds $15, 25 percent of
the options shall become exercisable; in the event the market value per share
exceeds $20, 50 percent of the options shall become exercisable; and in the
event the market value exceeds $25, 100 percent shall become exercisable.
Unexercised options would be forfeited in the event of voluntary or involuntary
termination. Vested options are exercisable for a period of one year following
termination due to death, disability or retirement. In the event of termination
by the Company for any reason there is no prorata vesting of unvested options.
 
    The following table reflects activity with respect to Non-Qualified Stock
Options during 1991 through 1993:
 

<TABLE>
<CAPTION>
                                                                                        OPTION
                                                                     OPTIONS             PRICE
                                                                   OUTSTANDING         PER SHARE
                                                                   -----------     ------------------
<S>                                                                  <C>           <C>
Outstanding at December 31, 1990................................     1,803,923     $14.4375 to $24.24
Grants..........................................................         4,500     $14.625
Cancellations...................................................       (45,332)    $14.4375 to $24.24
                                                                     ---------
Outstanding at December 31, 1991................................     1,763,091     $14.4375 to $24.24
Grants..........................................................     1,099,000     $ 9.5625
Cancellations...................................................       (50,163)    $14.4375 to $24.24
                                                                     ---------
Outstanding at December 31, 1992................................     2,811,928     $ 9.5625 to $24.24
Grants..........................................................       800,000     $ 9.5625
Cancellations...................................................       (95,398)    $ 9.5625 to $24.24
Exercises.......................................................        (6,945)    $ 9.5625
                                                                     ---------
Outstanding at December 31, 1993................................     3,509,585     $ 9.5625 to $24.24
                                                                     =========
</TABLE>
 
    At December 31, 1993 options on 780,790 shares were available for future
grants.
 
    A "Phantom Unit" is the right to receive a cash payment in an amount equal
to the average trading price of the shares of common stock at the time the award
becomes payable. Awards are made for a specified period and are dependent upon
continued employment and the achievement of performance objectives established
by the Company. In December 1990 the Company awarded 211,362 Phantom Units and
in December 1991 313,262 shares of restricted stock were issued in exchange for
such units. Compensation expense is recognized over the period the awards are
earned based on the market price of the restricted stock on the date it was
issued ($8.00 per share). During 1990 and 1991 $0.2 million and $0.8 million,
respectively, were charged to expense with respect to such awards. The
unamortized portion of the award at December 31, 1991 ($1.4 million) was
reflected in Shareholders' Equity. The consummation of the Merger resulted in a
"change of control" as defined in the Plan and resulted in the vesting of the
awards and $1.4 million in compensation expense was recognized in 1992.
 
    In 1993 the Company issued 6,432 shares of restricted stock to certain
employees and 118,039 common shares in accordance with the terms of certain
other employee compensation plans.
 



                                      F-16

<PAGE>   88
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
(11)  PENSION AND OTHER EMPLOYEE BENEFIT PLANS
 
  Pension Plans
 
    Prior to the Spin-Off the Company was included in certain non-contributory
pension plans of SFP. The Santa Fe Pacific Corporation Retirement Plan (the "SFP
Plan") covered substantially all of the Company's officers and salaried
employees who were not covered by collective bargaining agreements. The Santa Fe
Pacific Corporation Supplemental Retirement Plan was an unfunded plan which
provided supplementary benefits, primarily to senior management personnel.
 
    The Company adopted, effective as of the date of the Spin-Off, a defined
benefit retirement plan (the "SFER Plan") covering substantially all salaried
employees not covered by collective bargaining agreements and a nonqualified
supplemental retirement plan (the "Supplemental Plan"). The Supplemental Plan
will pay benefits to participants in the SFER Plan in those instances where the
SFER Plan formula produces a benefit in excess of limits established by ERISA
and the Tax Reform Act of 1986. Benefits payable under the SFER Plan are based
on years of service and compensation during the five highest paid years of
service during the ten years immediately preceding retirement. Benefits accruing
to the Company's employees under the SFP Plan have been assumed by the SFER
Plan. The Company's funding policy is to contribute annually not less than the
minimum required by ERISA and not more than the maximum amount deductible for
income tax purposes. In the fourth quarter of 1993 the Company established a new
pension plan with respect to certain persons employed in foreign locations.
 
    The following table sets forth the funded status of the SFER Plan and the
Supplemental Plan at December 31, 1993 and 1992 (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                   SFER PLAN         SUPPLEMENTAL PLAN
                                                              --------------------  --------------------
                                                                1993       1992       1993       1992
                                                              --------   ---------  --------   ---------
<S>                                                             <C>        <C>         <C>        <C>
Plan assets at fair value, primarily invested in common
  stocks and U.S. and corporate bonds.....................       30.2       28.9         --         --
Actuarial present value of projected benefit obligations:
    Accumulated benefit obligations
        Vested............................................      (30.9)     (24.5)      (0.6)      (0.5)
        Nonvested.........................................       (1.5)      (1.4)        --         --
        Effect of projected future salary increases.......       (8.3)      (6.4)      (0.3)      (0.2)
                                                                -----      -----       ----       ----
Excess of projected benefit obligation over plan
  assets..................................................      (10.5)      (3.4)      (0.9)      (0.7)
Unrecognized net loss from past experience different from
  that assumed and effects of changes in assumptions......        6.4        0.7        0.3        0.2
Unrecognized net (asset) obligation being recognized over
  plan's average remaining service life...................       (1.0)      (1.1)       0.2        0.3
Additional minimum liability..............................         --         --       (0.3)      (0.3)
                                                                -----      -----       ----       ----
Accrued pension liability.................................       (5.1)      (3.8)      (0.7)      (0.5)
                                                                =====      =====       ====       ====
Major assumptions at year-end
    Discount rate.........................................        7.0%      8.25%       7.0%      8.25%
    Long-term asset yield.................................        9.5%       9.5%       9.5%       9.5%
    Rate of increase in future compensation...............       5.25%      5.25%      5.25%      5.25%

</TABLE>
 



                                      F-17

<PAGE>   89
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
    The following table sets forth the components of pension expense for the
SFER Plan and Supplemental Plan for 1993, 1992 and 1991 (in millions of
dollars):
 

<TABLE>
<CAPTION>
                                                     SFER PLAN                    SUPPLEMENTAL PLAN
                                          -------------------------------  -------------------------------
                                            1993       1992       1991       1993       1992       1991
                                          ---------  ---------  ---------  ---------  ---------  ---------
    <S>                                      <C>        <C>        <C>        <C>        <C>        <C>
    Service cost.....................        1.4        1.2        1.1         --         --         --
    Interest cost....................        2.6        2.4        2.3        0.1        0.1        0.1
    Return on plan assets............       (2.7)      (2.5)      (2.4)        --         --         --
    Net amortization and deferral....         --         --       (0.1)        --         --         --
                                            ----       ----       ----        ---        ---        ---
                                             1.3        1.1        0.9        0.1        0.1        0.1
                                            ====       ====       ====        ===        ===        ===

</TABLE>
 
    The Company also sponsors a pension plan covering certain hourly-rated
employees in California (the "Hourly Plan"). The Hourly Plan provides benefits
that are based on a stated amount for each year of service. The Company annually
contributes amounts which are actuarially determined to provide the Hourly Plan
with sufficient assets to meet future benefit payment requirements.
 
    The following table sets forth the components of pension expense for the
Hourly Plan for the years 1993, 1992 and 1991 (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                                   YEAR ENDED DECEMBER 31,
                                                                               -------------------------------
                                                                                 1993       1992       1991
                                                                               ---------  ---------  ---------
<S>                                                                             <C>        <C>        <C>
    Service cost.............................................................    0.2        0.2        0.2      
    Interest cost............................................................    0.7        0.7        0.7      
    Return on plan assets....................................................   (0.8)      (0.1)      (0.5)     
    Net amortization and deferral............................................    0.4       (0.4)       0.1      
                                                                                ----       ----       ----                  
                                                                                 0.5        0.4        0.5      
                                                                                ====       ====       ====
</TABLE>
 
    The following table sets forth the funded status of the Hourly Plan at
December 31, 1993 and 1992 (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                                             1993       1992      
                                                                                             ----       ----   
<S>                                                                                         <C>          <C>         
    Plan assets at fair value, primarily invested in fixed-rate securities...........         7.7         7.2   
    Actual present value of projected benefit obligations                                                       
        Accumulated benefit obligations                                                                         
            Vested...................................................................       (11.2)       (9.1)  
            Nonvested................................................................        (0.4)       (0.3)  
                                                                                            -----        ----
    Excess of projected benefit obligation over plan assets..........................        (3.9)       (2.2)  
    Unrecognized net (gain) loss from past experience different from that                                       
        assumed and effects of changes in assumptions................................         1.5        (0.3)  
    Unrecognized prior service cost..................................................         0.5         0.6   
    Unrecognized net obligation......................................................         1.5         1.6   
    Additional minimum liability.....................................................        (3.5)       (2.1)  
                                                                                            -----        ----
        Accrued pension liability....................................................        (3.9)       (2.4)  
    Major assumptions at year-end                                                           =====        ====            
        Discount rate................................................................         7.0%       8.25%   
        Expected long-term rate of return on plan assets.............................         8.5%       8.5 %   
                                                                                      
</TABLE>
 
    At December 31, 1993 the Company's additional minimum liability exceeded the
total of its unrecognized prior service cost and unrecognized net obligation by
$1.5 million. Accordingly, at 
 



                                      F-18

<PAGE>   90
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

December 31, 1993 the Company's retained earnings have been reduced by such 
amount, net of related taxes of $0.6 million.

  Postretirement Benefits Other Than Pensions
                                      
    The Company provides health care and life insurance benefits for
substantially all employees who retire under the provisions of a
Company-sponsored retirement plan and their dependents. Participation in the
plans is voluntary and requires a monthly contribution by the employee.
Effective January 1, 1993 the Company adopted the provisions of SFAS No.
106 -- "Employers' Accounting for Postretirement Benefits Other Than Pensions".
The Statement requires the accrual, during the years the employee renders
service, of the expected cost of providing postretirement benefits to the
employee and the employee's beneficiaries and covered dependents. The following
table sets forth the plan's funded status at December 31, 1993 and January 1,
1993 (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                           DECEMBER 31,     JANUARY 1,
                                                                               1993            1993
                                                                           ------------     ----------
    <S>                                                                        <C>              <C>
    Plan assets, at fair value............................................       --             --
    Accumulated postretirement benefit obligation                         
      Retirees............................................................      (3.6)          (3.1)
      Eligible active participants........................................      (1.2)          (0.9)
      Other active participants...........................................      (1.4)          (1.2)
                                                                               -----           ----
    Accumulated postretirement benefit obligation in excess of plan            
      assets..............................................................      (6.2)          (5.2)
    Unrecognized transition obligation....................................       5.0            5.2
    Unrecognized net loss from past experience different from             
      that assumed and from changes in assumptions........................       0.5            --
                                                                               -----           ----
    Accrued postretirement benefit cost...................................      (0.7)           --
                                                                               =====           ====
    Assumed discount rate.................................................       7.5%          8.25%
    Assumed rate of compensation increase.................................      5.25%          5.25%
                                                                               
</TABLE>
 
    The Company's net periodic postretirement benefit cost for 1993 includes the
following components (in millions of dollars):

<TABLE>
<S>                                                                                <C>
    Service costs........................................................          0.3
    Interest costs.......................................................          0.4
    Amortization of unrecognized transition obligation...................          0.3
                                                                                   ---
                                                                                   1.0
                                                                                   ===
</TABLE>
 
    In periods prior to 1993 the cost to the Company of providing health care
and life insurance benefits for qualified retired employees was recognized as
expenses when claims were paid. Such amounts totalled $0.4 million in 1991 and
$0.3 million in 1992.
 
    Estimated costs and liabilities have been developed assuming trend rates for
growth in future health care costs beginning with 10% for 1993 graded to 6%
(5.5% for post age 65) by the year 2000 and remaining constant thereafter.
Increasing the assumed health care cost trend rate by one percent each year
would increase the accumulated postretirement benefit obligation as of December
31, 1993 by $0.9 million and the aggregate of the service cost and interest cost
components of the net periodic postretirement benefit cost for 1994 by $0.2
million.
 
  Savings Plan 
           
    The Company has a savings plan, which became effective November 1, 1990,
available to substantially all salaried employees and intended to qualify as a
deferred compensation plan under 
 



                                      F-19

<PAGE>   91
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

Section 401(k) of the Internal Revenue Code (the "401(k) Plan"). The
Company will match employee contributions for an amount up to 4% of each
employee's base salary. In addition, if at the end of each fiscal year the
Company's performance for such year has exceeded certain predetermined criteria,
each participant will receive an additional matching contribution equal to 50%
of the regular matching contribution. The Company's contributions to the 401(k)
Plan, which are charged to expense, totaled $1.2 million in 1991, $1.3 million
in 1992 and $1.5 million in 1993. In the fourth quarter of 1993 the Company
established a new savings plan with respect to certain personnel employed in
foreign locations.
 
  Other Postemployment Benefits
                        
    In the fourth quarter of 1993 the Company adopted SFAS No.
112 -- "Employers' Accounting for Postemployment Benefits". The Statement
requires the accrual of the estimated costs of benefits provided by an employer
to former or inactive employees after employment but before retirement. Such
benefits include salary continuation, supplemental unemployment benefits,
severance benefits, disability-related benefits, job training and counseling and
continuation of benefits such as health care and life insurance coverage. The
adoption of SFAS No. 112 resulted in a charge to earnings of $1.8 million in
1993.
 
(12)  COMMITMENTS AND CONTINGENCIES
 
  Crude Oil Hedging Program
                     
    In the third quarter of 1990, the Company initiated a hedging program
designed to provide a certain minimum level of cash flow from its sales of crude
oil. Settlements were included in oil revenues in the period the oil is sold. In
the year ended December 31, 1990 hedges resulted in a reduction in oil revenues
of $10.7 million; in 1991 hedges resulted in an increase in oil revenues of
$41.7 million and in 1992 hedges resulted in an increase in oil revenues of $9.7
million. The Company had no open crude oil hedging contracts during 1993.
 
  Natural Gas Hedging Program
                       
    In the third quarter of 1992 the Company initiated a hedging program with
respect to its sales of natural gas. The Company has used various instruments
whereby monthly settlements are based on the differences between the price or
range of prices specified in the instruments and the settlement price of certain
natural gas futures contracts quoted on the New York Mercantile Exchange. In
instances where the applicable settlement price is less than the price specified
in the contract, the Company receives a settlement based on the difference; in
instances where the applicable settlement price is higher than the specified
prices the Company pays an amount based on the difference. The instruments
utilized by the Company differ from futures contracts in that there is no
contractual obligation which requires or allows for the future delivery of the
product. In 1992 and 1993 hedges resulted in a reduction in natural gas revenues
of $0.5 million and $8.2 million, respectively.
 
    At December 31, 1993 the Company had two open natural gas hedging contracts
covering approximately 1.2 Bcf during the six month period beginning March 1994.
The "approximate break-even price" (the average of the monthly settlement prices
of the applicable futures contracts which would result in no settlement being
due to or from the Company) with respect to such contracts is approximately
$1.82 per Mcf. In addition, certain parties hold options on contracts covering
approximately 4.8 Bcf during the seven month period beginning March 1994 at an
approximate break even price of $1.90 per Mcf. The Company has no other
outstanding natural gas hedging instruments.
 
  Indemnity Agreement With SFP
                       
    At the time of the Spin-Off, the Company and SFP entered into an agreement
to protect SFP from federal and state income taxes, penalties and interest that
would be incurred by SFP if the 
 



                                      F-20

<PAGE>   92
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

Spin-off were determined to be a taxable event resulting primarily from
actions taken by the Company during a one-year period that ended December 4,
1991. If the Company were required to make payments pursuant to the agreement,
such payments could have a material adverse effect on its financial condition;
however, the Company does not believe that it took any actions during such
one-year period that would have such an effect on the Spin-Off.
 
  Environmental Regulation
                 
    Federal, state and local laws and regulations relating to environmental
quality control affect the Company in all of its oil and gas operations. The
Company has been identified as one of over 250 potentially responsible parties
("PRPs") at a superfund site in Los Angeles County, California. The site was
operated by a third party as a waste disposal facility from 1948 until 1983. The
Environmental Protection Agency ("EPA") is requiring the PRPs to undertake
remediation of the site in several phases, which include site monitoring and
leachate control, gas control and final remediation. In 1989, the EPA and a
group of the PRPs entered into a consent decree covering the site monitoring and
leachate control phases of remediation. The Company is a member of the group
that is responsible for carrying out this first phase of work, which is expected
to be completed in five to eight years. The maximum liability of the group,
which is joint and several for each member of the group, for the first phase is
$37.0 million, of which the Company's share is expected to be approximately $2.4
million ($1.3 million after recoveries from working interest participants in the
unit at which the wastes were generated) payable over the period that the phase
one work is performed. The EPA and a group of PRPs of which the Company is a
member have also entered into a subsequent consent decree (which has not been
finally entered by the court) with respect to the second phase of work (gas
control). The liability of this group has not been capped, but is estimated to
be $130.0 million. The Company's share of costs of this phase, however, is
expected to be approximately of the same magnitude as that of the first phase
because more parties are involved in the settlement. The Company has provided
for costs with respect to the first two phases, but it cannot currently estimate
the cost of any subsequent phases of work or final remediation which may be
required by the EPA.
 
    In 1989, Adobe received requests from the EPA for information pursuant to
Section 104(e) of CERCLA with respect to the D.L. Mud and Gulf Coast Vacuum
Services superfund sites located in Abbeville, Louisiana. The EPA has issued its
record of decision at the Gulf Coast Site and on February 9, 1993 the EPA issued
to all PRP's at the site a settlement order pursuant to Section 122 of CERCLA.
Earlier, an emergency order pursuant to Section 106 of CERLA was issued on
December 11, 1992, for purposes of containment due to the Louisiana rainy
season. On December 15, 1993 the Company entered into a sharing agreement with
other PRP'S to participate in the final remediation of the Gulf Coast site. The
Company's share of the remediation is approximately $600,000 and includes its
proportionate share of those PRPs who do not have the financial resources to
provide their share of the work at the site. A former site owner has already
conducted remedial activities at the D.L. Mud Site under a state agency
agreement. The extent, if any, of any further necessary remedial activity at the
D.L. Mud Site has not been finally determined.
 
  Employment Agreements
              
    The Company has entered into employment agreements with certain key
employees. The initial term of each agreement expired on December 31, 1990 and,
on January 1, 1991 and beginning on each January 1 thereafter, is automatically
extended for one-year periods, unless by September 30 of any year the Company
gives notice that the agreement will not be extended. The term of the agreements
is automatically extended for 24 months following a change of control. The
consummation of the Merger constituted a change of control as defined in the
agreements.
 

 

                                      F-21

<PAGE>   93
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

    In the event that following a change of control employment is terminated
for reasons specified in the agreements, the employee would receive: (i) a lump
sum payment equal to two years' base salary; (ii) the maximum possible bonus
under the terms of the Company's incentive compensation plan; (iii) a lapse of
restrictions on any outstanding restricted stock grants and full payout of any
outstanding Phantom Units; (iv) cash payment for each outstanding stock option
equal to the amount by which the fair market value of the common stock exceeds
the exercise price of the option; and, (v) life, disability and health benefits
for a period of up to two years. In addition, payments and benefits under
certain employment agreements are subject to further limitations based on
certain provisions of the Internal Revenue Code.
 
  Interest Rate Swaps
                 
    Prior to the Merger, Adobe had entered into two interest rate swaps with a
bank with notional principal amounts of $15.0 mllion and $20.0 million. Under
the terms of the $20.0 million swap, which expires in April 1994, during any
quarterly period at the beginning of which a floating rate specified in the
agreement is less than 7.84%, the Company must pay the bank interest for such
period on the principal amount at the difference between the rates. Should the
floating rate be in excess of 7.84%, the bank must pay the Company interest for
such period on the principal amount at the difference between the rates. For the
period from the effective date of the Merger to December 31, 1992 the amount due
the bank in accordance with the terms of the $20.0 million swap totalled $0.6
million and the amount due the bank in 1993 totalled $0.9 million. For the
quarterly period which ends in April 1994, the amount due the bank is based on a
floating rate of 3.375%. The $15.0 million swap, which expired December 31,
1992, had terms similar to the $20.0 million swap and the amount due the bank
for the period subsequent to the Merger totaled $0.5 million.
 
  Operating Leases
             
    The Company has noncancellable agreements with terms ranging from one to ten
years to lease office space and equipment. Minimum rental payments due under the
terms of these agreements are: 1994 -- $6.1 million, 1995 -- $6.0 million,
1996 -- $5.5 million, 1997 -- $5.2 million, 1998 -- $4.4 million and $4.7
million thereafter. Rental payments made under the terms of noncancellable
agreements totaled $4.0 million in 1991,$4.5 million in 1992 and $5.5 million in
1993.
 
  Other Matters
         
    The Company has several long-term contracts ranging up to fifteen years for
the supply and transportation of approximately 30 million cubic feet per day of
natural gas. In the aggregate, these contracts involve a minimum commitment on
the part of the Company of approximately $10 million per year.
 
    There are other claims and actions, including certain other environmental
matters, pending against the Company. In the opinion of management, the amounts,
if any, which may be awarded in connection with any of these claims and actions
could be significant to the results of operations of any period but would not 
be material to the Company's consolidated financial position.
 
(13)  INCOME TAXES
 
    Effective January 1, 1993 the Company adopted the provisions of Statement of
Financial Accounting Standards No. 109 -- "Accounting for Income Taxes". The
adoption of SFAS No. 109 had no significant impact on the Company's provision
for income taxes.
 
    Through the date of the Spin-Off the taxable income or loss of the Company
was included in the consolidated federal income tax return filed by SFP. The
Company has filed separate consolidated federal income tax returns for periods
subsequent to the Spin-Off. The consolidated federal income 
 



                                      F-22

<PAGE>   94
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

tax returns of SFP have been examined through 1988 and all years prior
to 1981 are closed. Issues relating to the years 1981 through 1985 are being
contested through various stages of administrative appeal. The Company is
evaluating its position with respect to issues raised in a 1986 through 1988
audit. The Company believes adequate provision has been made for any adjustments
which might be assessed for all open years.
 
    During 1989, the Company received a notice of deficiency for certain state
franchise tax returns filed for the years 1978 through 1983 as part of the
consolidated tax returns of SFP. The years subsequent to 1983 are still subject
to audit. At December 31, 1993 Other Long-Term Obligations includes $20.6
million with respect to this matter. The Company intends to contest this matter.
 
    With the Merger of Adobe the Company succeeded to a net operating loss
carryforward that is subject to Internal Revenue Code Section 382 limitations
which annually limit taxable income that can be offset by such losses. Certain
changes in the Company's shareholders may impose additional limitations as well.
Losses carrying forward of $133.3 million expire beginning in 1998.
 
    At date of the Merger, Adobe had ongoing tax litigation related to a refund
claim for carryback of certain net operating losses denied by the Internal
Revenue Service. During 1991 Adobe successfully defended its claim in Federal
District Court and prevailed again in 1992 in the United States Court of Appeals
for the Fifth Circuit. The Internal Revenue Service had no further recourse to
litigation and a $16.2 million refund was reflected as Income Tax Refund
Receivable at December 31, 1992 and collected in 1993.
 
    Pretax income from continuing operations for the years ended December 31,
1993, 1992 and 1991 was taxed under the following jurisdictions:
 

<TABLE>
<CAPTION>
                                                                                 1993        1992        1991
                                                                                -------     ------      -----
    <S>                                                                         <C>          <C>        <C>
    Domestic...............................................................     (120.9)       2.7       34.8
    Foreign................................................................      (29.3)      (3.6)      (2.1)
                                                                                ------       ----       ----
                                                                                (150.2)      (0.9)      32.7
                                                                                ======       ====       ====
</TABLE>
 
    The Company's income tax expense (benefit) for the years ended December 31,
1993, 1992 and 1991 consisted of (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                                    1993    1992    1991
                                                                                   ------   -----   ----
    <S>                                                                            <C>      <C>     <C>
    Current           
        U.S. federal...........................................................     (1.3)    3.5    11.0
        State..................................................................     (1.2)    1.4     1.7
        Foreign................................................................      1.3     1.9     --
                                                                                    ----    ----    ----
                                                                                    (1.2)    6.8    12.7
                                                                                   -----    ----    ----
    Deferred          
        U.S. federal...........................................................    (65.6)   (3.5)    0.2
        U.S. federal tax rate change...........................................      2.6     --      --
        State..................................................................     (8.0)   (2.5)    1.3
        Foreign................................................................     (0.9)   (0.3)    --
                                                                                   -----    ----    ----
                                                                                   (71.9)   (6.3)    1.5
                                                                                   -----    ----    ----
                                                                                   (73.1)    0.5    14.2
                                                                                   =====    ====    ====
</TABLE>
 



                                      F-23

<PAGE>   95
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
    The Company's deferred income tax liabilities (assets) at December 31, 1993
and 1992 are composed of the following differences between financial and tax
reporting (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                                      1993         1992
                                                                                      -----       -----
    <S>                                                                               <C>         <C>
    Capitalized costs and write-offs..............................................     83.0       150.8
    Differences in Partnership basis..............................................     15.1        29.3
    State deferred liability......................................................      5.8        13.4
    Foreign deferred liability....................................................     13.7        15.5
                                                                                      -----       -----
    Gross deferred liabilities....................................................    117.6       209.0
                                                                                      -----       -----
    Accruals not currently deductible for tax purposes............................    (17.7)      (28.3)
    Alternative minimum tax carryforwards.........................................     (8.3)       (5.3)
    Net operating loss carryforwards..............................................    (46.7)      (56.4)
    Other.........................................................................     (0.5)       --
                                                                                      -----       -----
    Gross deferred assets.........................................................    (73.2)      (90.0)
                                                                                      -----       -----
    Deferred tax liability........................................................     44.4       119.0
                                                                                      =====       =====
</TABLE>
 
    The Company had no deferred tax asset valuation allowance at December 31,
1993 or 1992.
 
    A reconciliation of the Company's U.S. income tax expense (benefit) computed
by applying the statutory U.S. federal income tax rate to the Company's income
(loss) before income taxes for the years ended December 31, 1993, 1992 and 1991
is presented in the following table (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                              1993      1992      1991
                                                                             ------     -----     ----
    <S>                                                                      <C>        <C>       <C>
    U.S. federal income taxes (benefit) at statutory rate................    (52.6)     (0.3)     11.1
    Increase (reduction) resulting from:                    
      State income taxes, net of federal effect..........................     (1.0)      1.4       2.2
      Foreign income taxes in excess of U.S. rate........................     (0.8)      0.3       --
      Nondeductible amounts..............................................     (0.2)     (2.4)      --
      Effect of increase in statutory rate on deferred taxes.............      2.6       --        --
      Federal audit refund...............................................     (3.2)      --        --
      Amendment to tax sharing agreement with SFP........................     (1.2)      --        --
      Benefit of tax losses..............................................    (11.2)      --        --
      Prior period adjustments...........................................     (5.5)      --        --
      Other..............................................................     --         1.5       0.9 
                                                                             -----      ----      ----
                                                                             (73.1)      0.5      14.2
                                                                             =====      ====      ====
</TABLE>
 
    The Company increased its deferred tax liability in 1993 as a result of
legislation enacted during 1993 increasing the corporate tax rate from 34% to
35% commencing in 1993.
 
(14)  FAIR VALUE OF FINANCIAL INSTRUMENTS
 
    SFAS No. 107 "Disclosure About Fair Value of Financial Instruments" requires
the disclosure, to the extent practicable, of the fair value of financial
instruments which are recognized or unrecognized in the balance sheet. The fair
value of the financial instruments disclosed herein is not representative of the
amount that could be realized or settled, nor does the fair value amount
consider the tax consequences, if any, of realization or settlement. The
following table reflects the 
 



                                      F-24

<PAGE>   96
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

financial instruments for which the fair value differs from the carrying amount
of such financial instrument in the Company's December 31, 1993 and 1992 balance
sheets (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                  1993                      1992
                                                          -------------------       -------------------
                                                          CARRYING       FAIR       CARRYING       FAIR
                                                           AMOUNT       VALUE        AMOUNT       VALUE
                                                          --------      -----       --------      -----
    <S>                                                     <C>          <C>          <C>          <C>
    Assets                               
        Trust Units....................................      10.4         11.3         10.4         10.5
    Liabilities                          
        Long-Term Debt (including current
          portion).....................................     449.7        482.2        546.2        572.2
        Convertible Preferred Stock....................      80.0        103.8         80.0         93.8
        Interest rate swap.............................        --          0.4           --          1.1
   
</TABLE>
 
    The fair value of the Trust Units and convertible preferred stock is based
on market prices. The fair value of the Company's fixed-rate long-term debt is
based on current borrowing rates available for financings with similar terms and
maturities. With respect to the Company's floating-rate debt, the carrying
amount approximates fair value. The fair value of the interest rate swap
represents the estimated cost to the Company over the remaining life of the
contract.
 
    At December 31, 1993 the Company had two open natural gas hedging contracts
and options outstanding on five additional contracts (see Note 12 -- Commitments
and Contingencies -- Natural Gas Hedging Contracts). Based on the settlement
prices of certain natural gas futures contracts as quoted on the New York
Mercantile Exchange on December 30, 1993, assuming all options are exercised,
the cost to the Company with respect to such contracts during 1994 would be
approximately $0.6 million.
 



                                      F-25

<PAGE>   97
                        SANTA FE ENERGY RESOURCES, INC.
                          SUPPLEMENTAL INFORMATION TO
                 CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)
 
OIL AND GAS RESERVES AND RELATED FINANCIAL DATA
 
    Information with respect to the Company's oil and gas producing activities
is presented in the following tables. Reserve quantities as well as certain
information regarding future production and discounted cash flows were
determined by independent petroleum consultants, Ryder Scott Company.
 
  Oil and Gas Reserves
               
    The following table sets forth the Company's net proved oil and gas reserves
at December 31, 1990, 1991, 1992 and 1993 and the changes in net proved oil and
gas reserves for the years ended December 31, 1991, 1992 and 1993.
 

<TABLE>
<CAPTION>
                                                       CRUDE OIL AND LIQUIDS (MMBBLS)                  NATURAL GAS (BCF)
                                                   --------------------------------------      ------------------------------------
                                                   U.S.     ARGENTINA   INDONESIA   TOTAL      U.S.   ARGENTINA   INDONESIA   TOTAL 
                                                   ----     ---------   ---------   -----      ----   ---------   ---------   ----- 
<S>                                                <C>        <C>         <C>       <C>        <C>      <C>         <C>       <C>   
Proved reserves at                                                                                                                  
 December 31, 1990..............................   222.3        --          --      222.3      185.9      --          --      185.9 
  Revisions of previous estimates...............    (1.9)       --          --       (1.9)       0.4      --          --        0.4 
  Improved recovery techniques..................    15.9        --          --       15.9        0.5      --          --        0.5 
  Extensions, discoveries and other                                                                                                 
   additions....................................     1.8        --          --        1.8       19.6      --          --       19.6 
  Purchases of minerals-in-place................     4.6       8.7          --       13.3        2.5      --          --        2.5 
  Sales of minerals-in-place....................    (2.4)       --          --       (2.4)      (5.5)     --          --       (5.5)
  Increase in ownership in Partnership..........     0.4        --          --        0.4        2.2      --          --        2.2 
  Production....................................   (20.0)     (0.2)         --      (20.2)     (34.8)     --          --      (34.8)
                                                   -----      ----        ----      -----      -----    ----        ----      -----
Proved reserves at                                                                                                                  
 December 31, 1991..............................   220.7       8.5          --      229.2      170.8      --          --      170.8 
  Revisions of previous estimates...............    14.4      (0.3)         --       14.1        7.3      --          --        7.3 
  Improved recovery techniques..................    17.0        --          --       17.0        1.3      --          --        1.3 
  Extensions, discoveries and other                                                                                                 
   additions....................................     1.3       1.3          --        2.6        5.6      --          --        5.6 
  Purchases of minerals-in-place................    13.5        --         7.2       20.7      141.5      --         0.6      142.1 
  Sales of minerals-in-place....................    (5.7)       --          --       (5.7)      (5.0)     --          --       (5.0)
  Increase in ownership in Partnership..........     0.2        --          --        0.2        1.6      --          --        1.6 
  Production....................................   (21.4)     (0.8)       (0.8)     (23.0)     (46.2)     --          --      (46.2)
                                                   -----      ----        ----      -----      -----    ----        ----      -----
Proved reserves at                                                                                                                  
 December 31, 1992..............................   240.0       8.7         6.4      255.1      276.9      --         0.6      277.5 
  Revisions to previous estimates...............   (11.9)      0.5         0.6      (10.8)      26.6      --         0.1       26.7 
  Improved recovery techniques..................    26.7        --          --       26.7         --      --          --         -- 
  Extensions, discoveries and other                                                                                                 
   additions....................................     3.4       0.5         2.3        6.2       29.5    26.4          --       55.9 
  Purchases of minerals-in-place................     3.2        --         0.7        3.9        9.8      --         0.1        9.9 
  Sales of minerals in place....................    (8.7)       --          --       (8.7)     (47.4)     --          --      (47.4)
  Increase in ownership in Partnership..........     0.1        --          --        0.1        0.8      --          --        0.8 
  Production....................................   (21.9)     (0.9)       (1.5)     (24.3)     (60.3)     --        (0.1)     (60.4)
                                                   -----      ----        ----      -----      -----    ----        ----      -----
Proved reserves at                                                                                                                  
  December 31, 1993.............................   230.9       8.8         8.5      248.2      235.9    26.4         0.7      263.0 
                                                   =====      ====        ====      =====      =====    ====        ====      =====
</TABLE>

                                             (Table continued on following page)
                                                                                
                                             

 
                                      F-26

<PAGE>   98
                        SANTA FE ENERGY RESOURCES, INC.
                          SUPPLEMENTAL INFORMATION TO
          CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)
 

<TABLE>
<CAPTION>
                                             CRUDE OIL AND LIQUIDS (MMBBLS)                       NATURAL GAS (BCF)
                                          --------------------------------------      ---------------------------------------
                                          U.S.     ARGENTINA   INDONESIA  TOTAL       U.S.     ARGENTINA   INDONESIA    TOTAL
                                          ----     ---------   ---------  ------      ----     ---------   ---------    -----
    <S>                                   <C>        <C>         <C>      <C>         <C>         <C>        <C>        <C>
    Proved developed reserves 
      at December 31               
        1990........................      176.8       --          --      176.8       169.4       --          --        169.4
        1991........................      179.2      5.4          --      184.6       154.2       --          --        154.2
        1992........................      194.6      5.6         6.4      206.6       250.2       --         0.6        250.8
        1993........................      178.8      5.5         6.7      191.0       206.0       --         0.7        206.7

</TABLE>
 
    Proved reserves are estimated quantities of crude oil and natural gas which
geological and engineering data indicate with reasonable certainty to be
recoverable in future years from known reservoirs under existing economic and
operating conditions. Proved developed reserves are proved reserves which can be
expected to be recovered through existing wells with existing equipment and
operating methods.
 
    Indonesian reserves represent an entitlement to gross reserves in accordance
with a production sharing contract. These reserves include estimated quantities
allocable to the Company for recovery of operating costs as well as quantities
related to the Company's net equity share after recovery of costs. Accordingly,
these quantities are subject to fluctuations with an inverse relationship to the
price of oil. If oil prices increase, the reserve quantities attributable to the
recovery of operating costs decline. Although this reduction would be offset
partially by an increase in the net equity share, the overall effect would be a
reduction of reserves attributable to the Company. At December 31, 1993, the
quantities include 0.6 million barrels which the Company is contractually
obligated to sell for $.20 per barrel.
 
    At December 31, 1993 the Company's reserves were 6.9 million barrels of
crude oil and liquids and 14.5 Bcf of natural gas lower than at December 31,
1992, reflecting the sale in 1993 of properties with reserves totalling 8.7
million barrels of crude oil and liquids and 47.4 Bcf of natural gas.
 
    At December 31, 1993, 1.9 million barrels of crude oil reserves and 19.7
billion cubic feet of natural gas reserves were subject to a 90% net profits
interest held by Santa Fe Energy Trust.
 



                                      F-27

<PAGE>   99
                        SANTA FE ENERGY RESOURCES, INC.
                          SUPPLEMENTAL INFORMATION TO
          CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)
 
  Estimated Present Value of Future Net Cash Flows
                                              
    Estimated future net cash flows from the Company's proved oil and gas
reserves at December 31, 1991, 1992 and 1993 are presented in the following
table (in millions of dollars, except as noted):
 

<TABLE>
<CAPTION>
                                                                       U.S.      ARGENTINA    INDONESIA      TOTAL
                                                                       ----      ---------    ---------      -----
    <S>                                                              <C>           <C>          <C>        <C>
    1993                                             
        Future cash inflows......................................     2,654.9      117.9        115.6       2,888.4
        Future production costs..................................    (1,547.2)     (65.9)       (78.7)     (1,691.8)
        Future development costs.................................      (216.7)     (32.4)        (8.9)       (258.0)
        Future income tax expenses...............................      (100.5)        --         (6.9)       (107.4)
                                                                     --------      -----        -----      --------
            Net future cash flows................................       790.5       19.6         21.1         831.2
        Discount at 10% for timing of cash flows.................      (308.5)     (12.1)        (8.2)       (328.8)
                                                                     --------      -----        -----      --------
        Present value of future net cash flows from                  
          proved reserves........................................       482.0        7.5         12.9         502.4
                                                                     ========      =====        =====      ========
        Average sales prices                                         
            Oil ($/Barrel).......................................        9.10       9.74        13.50
            Natural gas ($/Mcf)..................................        2.28       1.23         0.97
    1992                                             
        Future cash inflows......................................     3,709.8      132.9        105.8       3,948.5
        Future production costs..................................    (1,982.6)     (82.1)       (79.5)     (2,144.2)
        Future development costs.................................      (292.2)     (13.5)          --        (305.7)
        Future income tax expenses...............................      (286.9)      (1.0)        (9.5)       (297.4)
                                                                     --------      -----        -----      --------
            Net future cash flows................................     1,148.1       36.3         16.8       1,201.2
        Discount at 10% for timing of cash flows.................      (450.5)     (14.0)        (3.2)       (467.7)
                                                                     --------      -----        -----      --------
        Present value of future net cash flows from                  
          proved reserves........................................       697.6       22.3         13.6         733.5
                                                                     ========      =====        =====      ========
        Average sales prices                                         
            Oil ($/Barrel).......................................       13.30      15.28        16.46
            Natural gas ($/Mcf)..................................        2.01         --         0.97
    1991                                             
        Future cash inflows......................................     2,899.9      117.2           --       3,017.1
        Future production costs..................................    (1,655.3)     (76.1)          --      (1,731.4)
        Future development costs.................................      (242.2)     (13.7)          --        (255.9)
        Future income tax expenses...............................      (236.6)        --           --        (236.6)
                                                                     --------      -----        -----      --------
            Net future cash flows................................       765.8       27.4           --         793.2
        Discount at 10% for timing of cash flows.................      (320.0)      (9.6)          --        (329.6)
                                                                     --------      -----        -----      --------
        Present value of future net cash flows from  
          proved reserves........................................       445.8       17.8           --         463.6
                                                                     ========      =====        =====      ========
        Average sales prices                         
            Oil ($/Barrel).......................................       11.80      13.72           -- 
            Natural gas ($/Mcf)..................................        1.78         --           -- 
                                                                                                
</TABLE>
 



                                      F-28

<PAGE>   100
                        SANTA FE ENERGY RESOURCES, INC.
                          SUPPLEMENTAL INFORMATION TO
          CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)
 
    The following tables sets forth the changes in the present value of
estimated future net cash flows from proved reserves during 1991, 1992 and 1993
(in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                     U.S.       ARGENTINA     INDONESIA     TOTAL
                                                                     ----       ---------     ---------     -----
    <S>                                                             <C>           <C>           <C>         <C>
    1993                                             
      Balance at beginning of year..............................     697.6         22.3          13.6        733.5
                                                                    ------        -----         -----       ------
      Increase (decrease) due to:                                   
        Sales of oil and gas, net of production costs      
          of $189.5 million.....................................    (230.1)        (7.3)        (10.0)      (247.4)
        Net changes in prices and production costs..............    (325.1)        (7.7)          1.7       (331.1)
        Extensions, discoveries and improved recovery...........      94.8         14.8           7.0        116.6
        Purchases of minerals-in-place..........................      20.4           --           2.1         22.5
        Sales of minerals-in-place..............................     (84.7)          --            --        (84.7)
        Development costs incurred..............................      50.0          5.1            --         55.1
        Changes in estimated volumes............................      28.3          1.5           1.8         31.6
        Changes in estimated development costs..................      25.6        (24.1)         (8.9)        (7.4)
        Interest factor -- accretion of discount................      87.1          2.3           2.1         91.5
        Income taxes............................................     112.0          0.6           3.5        116.1
        Increase in ownership in Partnership....................       1.2           --            --          1.2
        Other...................................................       4.9           --            --          4.9
                                                                    ------        -----         -----       ------
                                                                    (215.6)       (14.8)         (0.7)      (231.1)
                                                                    ------        -----         -----       ------
                                                                     482.0          7.5          12.9        502.4
                                                                    ======        =====         =====       ======
</TABLE>
 
<TABLE>
<CAPTION>
                                                                     U.S.       ARGENTINA     INDONESIA     TOTAL
                                                                     ----       ---------     ---------     -----
    <S>                                                             <C>            <C>           <C>        <C>
    1992                                              
      Balance at beginning of year..............................     445.8         17.8            --        463.6
                                                                    ------        -----         -----       ------
      Increase (decrease) due to:                                   
        Sales of oil and gas, net of production costs      
          of $176.2 million.....................................    (236.6)        (8.4)         (6.3)      (251.3)
        Net changes in prices and production costs..............     191.7          7.8           3.5        203.0
        Extensions, discoveries and improved recovery...........      70.9          4.6            --         75.5
        Purchases of minerals-in-place..........................     230.6           --          24.1        254.7
        Sales of minerals-in-place..............................     (77.7)          --            --        (77.7)
        Development costs incurred..............................      26.5          3.1            --         29.6
        Changes in estimated volumes............................      63.4         (1.0)           --         62.4
        Changes in estimated development costs..................     (76.9)        (2.8)           --        (79.7)
        Interest factor -- accretion of discount................      58.7          1.8            --         60.5
        Income taxes............................................     (14.8)        (0.6)         (7.7)       (23.1)
        Increase in ownership in Partnership....................       1.9           --            --          1.9
        Other...................................................      14.1           --            --         14.1
                                                                    ------        -----         -----       ------
                                                                     251.8          4.5          13.6        269.9
                                                                    ------        -----         -----       ------
                                                                     697.6         22.3          13.6        733.5
                                                                    ======        =====         =====       ======
</TABLE>
 



                                      F-29

<PAGE>   101
                        SANTA FE ENERGY RESOURCES, INC.
                          SUPPLEMENTAL INFORMATION TO
          CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)
 

<TABLE>
<CAPTION>
                                                                    U.S.       ARGENTINA     INDONESIA     TOTAL
                                                                    ----       ---------     ---------     -----
    <S>                                                             <C>          <C>             <C>      <C>
    1991                                              
      Balance at beginning of year..............................     839.4         --            --        839.4
                                                                    ------       ----          ----       ------
      Increase (decrease) due to:                                   
        Sales of oil and gas, net of production costs      
          of $157.6 million.....................................    (221.0)      (1.2)           --       (222.2)
        Net changes in prices and production costs..............    (617.6)       7.9            --       (609.7)
        Extensions, discoveries and improved recovery...........      71.6         --            --         71.6
        Purchases of minerals-in-place..........................      10.4       24.8            --         35.2
        Sales of minerals-in-place..............................     (30.7)        --            --        (30.7)
        Development costs incurred..............................      54.0        0.7            --         54.7
        Changes in estimated volumes............................       2.3         --            --          2.3
        Changes in estimated development costs..................    (117.5)     (14.4)           --       (131.9)
        Interest factor -- accretion of discount................     123.5         --            --        123.5
        Income taxes............................................     233.5         --            --        233.5
        Increase in ownership in Partnership....................       4.6         --            --          4.6
        Other...................................................      93.3         --            --         93.3
                                                                    ------       ----          ----       ------
                                                                    (393.6)      17.8            --       (375.8)
                                                                    ------       ----          ----       ------
                                                                     445.8       17.8            --        463.6
                                                                    ======       ====          ====       ======
</TABLE>
 
    Estimated future cash flows represent an estimate of future net cash flows
from the production of proved reserves using estimated sales prices and
estimates of the production costs, ad valorem and production taxes, and future
development costs necessary to produce such reserves. No deduction has been made
for depletion, depreciation or any indirect costs such as general corporate
overhead or interest expense.
 
    The sales prices used in the calculation of estimated future net cash flows
are based on the prices in effect at year end. Such prices have been held
constant except for known and determinable escalations.
 
    Operating costs and ad valorem and production taxes are estimated based on
current costs with respect to producing oil and gas properties. Future
development costs are based on the best estimate of such costs assuming current
economic and operating conditions.
 
    Income tax expense is computed based on applying the appropriate statutory
tax rate to the excess of future cash inflows less future production and
development costs over the current tax basis of the properties involved. While
applicable investment tax credits and other permanent differences are considered
in computing taxes, no recognition is given to tax benefits applicable to future
exploration costs or the activities of the Company that are unrelated to oil and
gas producing activities.
 
    The information presented with respect to estimated future net revenues and
cash flows and the present value thereof is not intended to represent the fair
value of oil and gas reserves. Actual future sales prices and production and
development costs may vary significantly from those in effect at year-end and
actual future production may not occur in the periods or amounts projected. This
information is presented to allow a reasonable comparison of reserve values
prepared using standardized measurement criteria and should be used only for
that purpose.
 



                                      F-30

<PAGE>   102
                        SANTA FE ENERGY RESOURCES, INC.
                          SUPPLEMENTAL INFORMATION TO
          CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)
 
  Costs Incurred in Oil and Gas Producing Activities
 
    The following table includes all costs incurred, whether capitalized or
charged to expense at the time incurred (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                                                    OTHER
                                                              U.S.     ARGENTINA      INDONESIA     FOREIGN      TOTAL
                                                             ------    ---------      ---------     -------      -----
     <S>                                                      <C>         <C>            <C>         <C>         <C>
     1993                                               
       Property acquisition costs                       
         Unproved.......................................        6.4        --             1.8         3.8         12.0
         Proved.........................................       29.7        --             2.9          --         32.6
         Other..........................................        0.8        --              --          --          0.8
       Exploration costs................................       20.9       0.7             5.2        11.7         38.5
       Development costs................................       85.3       7.3             7.6          --        100.2
                                                              -----      ----            ----        ----        -----
                                                              143.1       8.0            17.5        15.5        184.1
                                                              =====      ====            ====        ====        =====
                                                        
     1992                                               
       Property acquisition costs                       
         Unproved.......................................       29.3       0.2             8.8         3.5         41.8
         Proved.........................................      294.1        --            59.4          --        353.5
         Other..........................................       65.6        --              --          --         65.6
       Exploration costs................................       18.4       2.1             2.9         8.9         32.3
       Development costs................................       56.8       3.0             1.8          --         61.6
                                                              -----      ----            ----        ----        -----
                                                              464.2       5.3            72.9        12.4        554.8
                                                              =====      ====            ====        ====        =====
     1991                                                                                                             
       Property acquisition costs                                                                                     
         Unproved.......................................        4.4        --              --         3.2          7.6
         Proved.........................................       29.0        --              --        34.1         63.1
         Other..........................................         --        --              --          --           --  
       Exploration costs................................       20.7        --              --         4.1         24.8
       Development costs................................       85.8        --              --         0.7         86.5
                                                              -----      ----            ----        ----        -----
                                                              139.9        --              --        42.1        182.0
                                                              =====      ====            ====        ====        =====
</TABLE> 



                                      F-31

<PAGE>   103
                        SANTA FE ENERGY RESOURCES, INC.
                          SUPPLEMENTAL INFORMATION TO
          CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)
 
  Capitalized Costs Related to Oil and Gas Producing Activities
 
    The following table sets forth information concerning capitalized costs at
December 31, 1993 and 1992 related to the Company's oil and gas operations (in
millions of dollars):
 

<TABLE>
<CAPTION>
                                                   1993                                               1992
                           -------------------------------------------------   --------------------------------------------------
                                                            OTHER                                                OTHER
                             U.S.    ARGENTINA  INDONESIA  FOREIGN   TOTAL      U.S.    ARGENTINA   INDONESIA   FOREIGN    TOTAL
                           ------    ---------  ---------  -------  --------   -----    ---------   ---------   -------   -------
<S>                        <C>          <C>       <C>       <C>     <C>        <C>          <C>         <C>       <C>     <C>      
Oil and gas properties                                                                                                             
    Unproved............       40.3      1.3       12.0     10.7        64.3       80.1      1.3        10.2       7.3        98.9 
    Proved..............    1,869.9     48.9       68.0       --     1,986.8    2,049.8     37.5        62.7        --     2,150.0 
    Other...............       13.2       --         --       --        13.2       82.0       --                    --        82.0 
Accumulated amortization                                                                                                           
  of unproved                                                                                                                      
  properties............      (14.6)    (1.2)      (2.8)    (9.9)      (28.5)     (23.6)    (1.0)       (1.7)     (2.6)      (28.9)
Accumulated depletion,                                                                                                             
  depreciation and                                                                                                                 
  impairment of proved                                                                                                             
  properties............   (1,181.9)    (7.9)     (22.4)      --    (1,212.2)  (1,200.0)    (4.6)       (2.3)       --    (1,206.9)
Accumulated depreciation                                                                                                           
  of other oil and gas                                                                                                             
  properties                   (4.3)      --         --       --        (4.3)      (7.5)      --          --        --        (7.5)
                           --------     ----      -----     ----    --------   --------     ----        ----      ----    --------
                              722.6     41.1       54.8      0.8       819.3      980.8     33.2        68.9       4.7     1,087.6
                           ========     ====      =====     ====    ========   ========     ====        ====      ====    ========
                                                                                                                
</TABLE>
 



                                      F-32

<PAGE>   104
                        SANTA FE ENERGY RESOURCES, INC.
                          SUPPLEMENTAL INFORMATION TO
          CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)
 
  Results of Operations From Oil and Gas Producing Activities
 
    The following table sets forth the Company's results of operations from oil
and gas producing activities for the years ended December 31, 1993, 1992 and
1991 (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                                                    OTHER
                                                                 U.S.    ARGENTINA    INDONESIA    FOREIGN      TOTAL
                                                               -------   ---------    ---------    -------    ---------
<S>                                                             <C>          <C>          <C>        <C>         <C>
1993                                                        
  Revenues..................................................     401.2       12.5          23.2         --        436.9
  Production costs..........................................    (166.9)      (5.2)        (13.2)        --       (185.3)
  Oil and gas systems and pipelines.........................      (4.2)        --            --         --         (4.2)
  Exploration, including dry hole costs.....................     (16.4)      (0.7)         (2.2)     (11.7)       (31.0)
  Depletion, depreciation, amortization and impairments.....    (218.8)      (3.6)        (21.2)      (6.7)      (250.3)
  Restructuring charges.....................................     (27.8)        --            --         --        (27.8)
  Gain (loss) on disposition of properties..................      (0.7)        --            --         --         (0.7)
                                                                ------      -----         -----      -----       ------
                                                                 (33.6)       3.0         (13.4)     (18.4)       (62.4)
  Income taxes..............................................      24.1       (0.9)          1.9         --         25.1
                                                                ------      -----         -----      -----       ------
                                                                  (9.5)       2.1         (11.5)     (18.4)       (37.3)
                                                                ======      =====         =====      =====       ======
1992                                                        
  Revenues..................................................     400.0       13.9          13.6         --        427.5
  Production costs..........................................    (160.2)      (5.5)         (7.3)        --       (173.0)
  Oil and gas systems and pipelines.........................      (3.2)        --            --         --         (3.2)
  Exploration, including dry hole costs.....................     (12.9)      (2.2)         (1.3)      (9.1)       (25.5)
  Depletion, depreciation, amortization and impairments.....    (136.7)      (3.7)         (2.7)      (1.6)      (144.7)
  Gain (loss) on disposition of properties..................      13.6         --            --         --         13.6
                                                                ------      -----         -----      -----       ------
                                                                 100.6        2.5           2.3      (10.7)        94.7
  Income taxes..............................................     (37.9)        --          (1.6)        --        (39.5)
                                                                ------      -----         -----      -----       ------
                                                                  62.7        2.5           0.7      (10.7)        55.2
                                                                ======      =====         =====      =====       ======
1991                                                        
  Revenues..................................................     376.1        3.7            --         --        379.8
  Production costs..........................................    (155.1)      (2.5)           --         --       (157.6)
  Exploration, including dry hole costs.....................     (15.5)      (1.5)           --       (1.7)       (18.7)
  Depletion, depreciation, amortization and impairments.....    (101.3)      (1.8)           --       (0.7)      (103.8)
  Gain (loss) on disposition of properties..................      (0.5)        --            --         --         (0.5)
                                                                ------      -----         -----      -----       ------
                                                                 103.7       (2.1)           --       (2.4)        99.2
  Income Taxes..............................................     (42.3)        --            --         --        (42.3)
                                                                ------      -----         -----      -----       ------
                                                                  61.4       (2.1)           --       (2.4)        56.9
                                                                ======      =====         =====      =====       ======
</TABLE>
 
    Income taxes are computed by applying the appropriate statutory rate to the
results of operations before income taxes. Applicable tax credits and allowances
related to oil and gas producing activities have been taken into account in
computing income tax expenses. No deduction has been made for indirect cost such
as corporate overhead or interest expense.
 



                                      F-33

<PAGE>   105
                       SANTA FE ENERGY RESOURCES, INC.
                         SUPPLEMENTAL INFORMATION TO
         CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)
 
SUMMARIZED QUARTERLY FINANCIAL DATA
 

<TABLE>
<CAPTION>
                                                                          1 QTR      2 QTR      3 QTR       4 QTR       YEAR
                                                                          -----      -----      -----       -----       ----
                                                                             (IN MILLIONS OF DOLLARS EXCEPT PER SHARE DATE)
<S>                                                                        <C>        <C>        <C>        <C>         <C>
  1993
    Revenues...........................................................    115.3      116.3      102.7       102.6       436.9
    Gross profit (a)...................................................     19.0       22.5        8.5      (130.7)      (80.7)
    Income (loss) from operations......................................     12.0       15.4        1.2      (141.6)(b)  (113.0)
    Net income (loss)..................................................     (0.4)       4.0        2.4       (83.1)      (77.1)
    Earnings (loss) attributable to common shares......................     (2.2)       2.3        0.6       (84.8)      (84.1)
    Earnings (loss) attributable to common shares per share............    (0.02)      0.02       0.01       (0.95)      (0.94)
    Average shares outstanding (millions)..............................     89.6       89.7       89.8        89.8        89.7
  1992
    Revenues...........................................................     78.5       97.7      127.9       123.4       427.5
    Gross profit (a)...................................................      2.9       34.1       32.0        19.4        88.4
    Income (loss) from operations......................................     (3.5)      25.1       24.4        11.5        57.5
    Net income (loss)..................................................     (8.8)       1.8        7.3        (1.7)       (1.4)
    Earnings (loss) attributable to common shares......................     (8.8)       1.0        5.5        (3.4)       (5.7)
    Earnings (loss) attributable to common shares per share............     (.14)       .01        .06        (.04)       (.07)
    Average shares outstanding (millions)..............................     64.3       72.7       89.4        89.5        79.0

</TABLE>
__________
 
  (a) Revenues less operating expenses other than general and administrative.
 
  (b) Includes charges of $99.3 million for impairment of oil and gas properties
      and $38.6 million for restructuring charges.
 



                                     F-34
<PAGE>   106
   
                        SANTA FE ENERGY RESOURCES, INC.
                CONSOLIDATED STATEMENT OF OPERATIONS (UNAUDITED)
                (IN MILLIONS OF DOLLARS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
                                        THREE MONTHS ENDED
                                            MARCH 31,
                                       --------------------
                                         1994       1993
                                       ---------  ---------
<S>                                    <C>        <C>
Revenues
    Crude oil and liquids............  $    58.6  $    80.5
    Natural gas......................       28.1       28.6
    Natural gas systems..............         --        3.0
    Crude oil marketing and
      trading........................        2.7        2.3
    Other............................        0.9        0.9
                                       ---------  ---------
                                            90.3      115.3
                                       ---------  ---------
Costs and Expenses
    Production and operating.........       40.6       42.7
    Oil and gas systems and
      pipelines......................         --        1.1
    Exploration, including dry hole
      costs..........................        5.0        7.1
    Depletion, depreciation and
      amortization...................       32.1       37.6
    General and administrative.......        7.6        7.0
    Taxes (other than income)........        7.4        7.1
    Restructuring charges............        7.0         --
    Loss (gain) on disposition of oil
      and gas properties.............       (9.4)       0.7
                                       ---------  ---------
                                            90.3      103.3
                                       ---------  ---------
Income (Loss) from Operations........         --       12.0
    Interest income..................        0.2        1.2
    Interest expense.................      (10.3)     (13.7)
    Interest capitalized.............        0.9        1.1
    Other income (expense)...........        0.9       (0.2)
                                       ---------  ---------
Income (Loss) Before Income Taxes....       (8.3)       0.4
    Income tax benefit (expense).....        5.8       (0.8)
                                       ---------  ---------
Net Income (Loss)....................       (2.5)      (0.4)
Preferred dividend requirement.......       (1.8)      (1.8)
                                       ---------  ---------
Earnings (Loss) Attributable to
  Common Shares......................  $    (4.3) $    (2.2)
                                       =========  =========
Earnings (Loss) Attributable to
  Common Shares Per Share............  $   (0.05) $   (0.02)
                                       =========  =========
Weighted Average Number of Shares
  Outstanding (in millions)..........       89.9       89.6
                                       =========  =========
</TABLE>

   The accompanying notes are an integral part of these financial statements.
    


                                      F-35

<PAGE>   107
   
                        SANTA FE ENERGY RESOURCES, INC.
                           CONSOLIDATED BALANCE SHEET
                            (IN MILLIONS OF DOLLARS)

<TABLE>
<CAPTION>
                                        MARCH 31,     DECEMBER 31,
                                           1994           1993
                                       ------------   ------------
                                       (UNAUDITED)
<S>                                    <C>             <C>
               ASSETS
Current Assets
    Cash and cash equivalents........  $        3.2    $      4.8
    Accounts receivable..............          78.4          87.4
    Inventories......................           9.7           8.7
    Assets held for sale.............          49.1          59.5
    Other current assets.............          11.7          12.2
                                       ------------    ----------
                                              152.1         172.6
                                       ------------    ----------
Investment in Hadson Corporation.....          57.0          56.2
                                       ------------    ----------
Properties and Equipment, at cost
    Oil and gas (on the basis of
      successful efforts
      accounting)....................       2,081.0       2,064.3
    Other............................          27.0          27.3
                                       ------------    ----------
                                            2,108.0       2,091.6
    Accumulated depletion,
      depreciation, amortization and
      impairment.....................      (1,289.8)     (1,258.9)
                                       ------------    ----------
                                              818.2         832.7
                                       ------------    ----------
Other Assets
    Receivable under gas balancing
      arrangements...................           4.0           3.9
    Other............................          10.9          11.5
                                       ------------    ----------
                                               14.9          15.4
                                       ------------    ----------
                                       $    1,042.2    $  1,076.9
                                       ============    ==========

LIABILITIES AND SHAREHOLDERS' EQUITY
Current Liabilities
    Accounts payable.................  $       85.0    $     93.5
    Interest payable.................           0.8          10.2
    Current portion of long-term
      debt...........................          42.9          44.3
    Other current liabilities........          16.2          18.1
                                       ------------    ----------
                                              144.9         166.1
                                       ------------    ----------
Long-Term Debt.......................         403.5         405.4
                                       ------------    ----------
Deferred Revenues....................           8.2           8.6
                                       ------------    ----------
Other Long-Term Obligations..........          43.9          48.8
                                       ------------    ----------
Deferred Income Taxes................          41.0          44.4
Commitments and Contingencies 
  (Note 5)...........................            --            --
                                       ------------    ----------
Convertible Preferred Stock..........          80.0          80.0
                                       ------------    ----------
Shareholders' Equity
    Preferred stock..................            --            --
    Common stock.....................           0.9           0.9
    Paid-in capital..................         498.3         496.9
    Unamortized restricted stock
      awards.........................          (0.1)         (0.1)
    Accumulated deficit..............        (178.1)       (173.8)
    Foreign currency translation
      adjustment.....................          (0.3)         (0.3)
                                       ------------    ----------
                                              320.7         323.6
                                       ------------    ----------
                                       $    1,042.2    $  1,076.9
                                       ============    ==========
</TABLE>

   The accompanying notes are an integral part of these financial statements.
    


                                      F-36

<PAGE>   108

   
                        SANTA FE ENERGY RESOURCES, INC.
                CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED)
                            (IN MILLIONS OF DOLLARS)

<TABLE>
<CAPTION>
                                         THREE MONTHS ENDED
                                             MARCH 31,
                                       ----------------------
                                          1994        1993
                                       ----------  ----------
<S>                                    <C>         <C>
Operating Activities:
    Net income (loss)................  $     (2.5) $     (0.4)
    Adjustments to reconcile net
      income (loss) to net cash
      provided by operating
      activities:
        Depletion, depreciation and
          amortization...............        32.1        37.6
        Restructuring charges........         1.0          --
        Deferred income taxes........        (3.4)       (0.4)
        Net loss (gain) on
          disposition of
          properties.................        (9.4)        0.7
        Exploratory dry hole
          costs......................         0.6         1.3
        Other........................        (0.1)        0.7
    Changes in operating assets and
      liabilities:
        Decrease (increase) in
          accounts receivable........         9.0         2.3
        Decrease (increase) in income
          tax refund receivable......          --        16.2
        Decrease (increase) in
          inventories................        (1.0)       (4.7)
        Increase (decrease) in
          accounts payable...........         2.8        (3.4)
        Increase (decrease) in
          interest payable...........        (9.4)       (8.9)
        Increase (decrease) in income
          taxes payable..............        (0.1)        1.3
        Net change in other assets
          and liabilities............        (5.3)       (0.7)
                                       ----------  ----------
Net Cash Provided by Operating
  Activities.........................        14.3        41.6
                                       ----------  ----------
Investing Activities:
    Capital expenditures, including
      exploratory dry hole costs.....       (30.5)      (30.0)
    Acquisitions of producing
      properties, net of related
      debt...........................        (0.6)       (4.7)
    Net proceeds from sales of
      properties.....................        20.3         7.4
    Increase in partnership interest
      due to reinvestment............          --        (0.5)
                                       ----------  ----------
Net Cash Used in Investing
  Activities.........................       (10.8)      (27.8)
                                       ----------  ----------
Financing Activities:
    Net change in debt...............        (3.3)      (30.1)
    Cash dividends paid..............        (1.8)       (5.3)
                                       ----------  ----------
Net Cash Used in Financing
  Activities.........................        (5.1)      (35.4)
                                       ----------  ----------
Net Decrease in Cash and Cash
  Equivalents........................        (1.6)      (21.6)
Cash and Cash Equivalents at
  Beginning of Period................         4.8        83.8
                                       ----------  ----------
Cash and Cash Equivalents at End of
  Period.............................  $      3.2  $     62.2
                                       ==========  ==========
</TABLE>

   The accompanying notes are an integral part of these financial statements.
    


                                      F-37

<PAGE>   109
   
                        SANTA FE ENERGY RESOURCES, INC.
           CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (UNAUDITED)
                        (SHARES AND DOLLARS IN MILLIONS)

<TABLE>
<CAPTION>
                                                                                                 FOREIGN
                                                                    UNAMORTIZED                  CURRENCY
                                        COMMON STOCK                RESTRICTED                   TRANSLA-       TOTAL
                                       ---------------   PAID-IN      STOCK       ACCUMULATED      TION       SHAREHOLDERS'
                                       SHARES   AMOUNT   CAPITAL      AWARDS        DEFICIT     ADJUSTMENT      EQUITY
                                       ------   ------   -------    -----------   ------------  ----------    -------------
<S>                                      <C>     <C>     <C>         <C>          <C>            <C>           <C>
Balance at December 31, 1993.........    89.8    $0.9    $ 496.9     $  (0.1)     $  (173.8)     $ (0.3)       $ 323.6
  Issuance of common stock...........     0.1      --        1.4          --             --          --            1.4
  Net loss...........................      --      --         --          --           (2.5)         --           (2.5)
  Dividends declared.................      --      --         --          --           (1.8)         --           (1.8)
                                         ----    ----    -------     -------      ---------      ------        -------
Balance at March 31, 1994............    89.9    $0.9    $ 498.3     $  (0.1)     $  (178.1)     $ (0.3)       $ 320.7
                                         ====    ====    =======     =======      =========      ======        =======

Balance at December 31, 1992.........    89.5    $0.9    $ 494.3     $  (0.4)     $   (78.0)     $ (0.2)       $ 416.6
  Issuance of common stock...........     0.2      --        1.8          --             --          --            1.8
  Amortization of restricted                                                                            
   stock awards......................      --      --         --         0.1             --          --            0.1
  Net loss...........................      --      --         --          --           (0.4)         --           (0.4)
  Dividends declared.................      --      --         --          --           (5.3)         --           (5.3)
                                         ----    ----    -------     -------      ---------      ------        -------
Balance March 31, 1993...............    89.7    $0.9    $ 496.1     $  (0.3)     $   (83.7)     $ (0.2)       $ 412.8
                                         ====    ====    =======     =======      =========      ======        =======
</TABLE>


   The accompanying notes are an integral part of these financial statements.
    


                                      F-38

<PAGE>   110
   
                        SANTA FE ENERGY RESOURCES, INC.
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  (UNAUDITED)

(1)  ACCOUNTING POLICIES

    The unaudited consolidated financial statements of Santa Fe Energy
Resources, Inc. ("Santa Fe" or the "Company") reflect, in the opinion of
management, all adjustments, consisting only of normal and recurring
adjustments, necessary to present fairly the Company's financial position at
March 31, 1994 and the Company's results of operations and cash flows for the
three-month periods ended March 31, 1994 and 1993. Interim period results are
not necessarily indicative of results of operations or cash flows for a
full-year period.

    These financial statements and the notes thereto should be read in
conjunction with the Company's annual report on Form 10-K for the year ended
December 31, 1993.

(2)  CORPORATE RESTRUCTURING PROGRAM

    In the fourth quarter of 1993 the Company adopted a corporate restructuring
program which includes (i) the concentration of capital spending in the
Company's core operating areas; (ii) the disposition of non-core assets; (iii)
the elimination of the $0.04 per share quarterly common stock dividend; and
(iv) an evaluation of the Company's capital and cost structures.

    The Company's non-core asset disposition program includes the sale of its
natural gas gathering and processing assets to Hadson Corporation ("Hadson"),
the sale to Vintage Petroleum, Inc. of certain southern California and Gulf
Coast oil and gas producing properties and the sale to Bridge Oil (U.S.A.) Inc.
of certain Mid-Continent and Rocky Mountain oil and gas producing properties
and undeveloped acreage. Based on the evaluation of its capital and cost
structures, the Company (i) implemented a cost reduction program which includes
the reduction of its salaried work force by approximately 20%, an improvement in
the efficiency of its information systems and reductions in other general and
administrative costs and (ii) determined to proceed with a refinancing of
certain of its long-term debt.

    In implementing the corporate restructuring program, in 1993 the Company
recorded restructuring charges of $38.6 million comprised of (i) losses on
property dispositions of $27.8 million; (ii) long-term debt repayment penalties
of $8.6 million; and (iii) accruals for certain personnel benefits and related
costs of $2.2 million. In the first quarter of 1994 the Company recorded
additional restructuring charges of $7.0 million comprised of severance,
benefits and relocation expenses associated with the cost reduction program.

(3)  STATEMENT OF CASH FLOWS

    The Company made interest and income tax payments as follows during the
three months ended March 31, 1994 and 1993 (in millions of dollars):

<TABLE>
<CAPTION>
                                            1994       1993
                                            ----       ----
<S>                                         <C>        <C>
Interest payments....................       21.2       21.5
Income tax payments..................        0.8        0.8
</TABLE>


    
                                      F-39

<PAGE>   111
   
                        SANTA FE ENERGY RESOURCES, INC.
     NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)

(4)  INVESTMENT IN HADSON CORPORATION

    The following table summarizes the Company's investment in Hadson
Corporation ("Hadson") and the changes in such investment during the three
months ended March 31, 1994 (in millions of dollars):

<TABLE>
<CAPTION>
                                           INVESTMENT IN
                                        -------------------
                                        PREFERRED    COMMON
                                          STOCK      STOCK     TOTAL
                                        ---------    ------    -----
<S>                                        <C>        <C>       <C>
Investment at December 31, 1993......      48.7        7.5      56.2
Preferred dividends, paid in-kind....       1.4         --       1.4
Equity in loss attributable to common
  shares.............................        --       (0.6)     (0.6)
                                           ----       ----      ----
Investment at March 31, 1994.........      50.1        6.9      57.0
                                           ====       ====      ====
</TABLE>

    The following table summarizes Hadson's results of operations for the three
months ended March 31, 1994 (in millions of dollars):

<TABLE>
<S>                                       <C>
Revenues.............................      193.2
Expenses.............................     (192.8)
                                          ------
Income before income taxes...........        0.4
Income taxes.........................         --
                                          ------
Net income...........................        0.4
Preferred dividend requirement.......       (1.4)
                                          ------
Loss attributable to common
  shares.............................       (1.0)
                                          ======
</TABLE>

(5)  COMMITMENTS AND CONTINGENCIES

  NATURAL GAS HEDGING PROGRAM

    In the third quarter of 1992 the Company initiated a hedging program with
respect to its sales of natural gas. The Company has used various instruments
whereby monthly settlements are based on the differences between the price or
range of prices specified in the instruments and the settlement price of certain
natural gas futures contracts quoted on the New York Mercantile Exchange. In
instances where the applicable settlement price is less than the price specified
in the contract, the Company receives a settlement based on the difference; in
instances where the applicable settlement price is higher than the specified
prices the Company pays an amount based on the difference. The instruments
utilized by the Company differ from futures contracts in that there is no
contractual obligation which requires or allows for the future delivery of the
product. For the three months ended March 31, 1994 and 1993, hedges resulted in
a reduction in natural gas revenues of $0.3 million and $0.8 million,
respectively.

    The Company has open natural gas hedging contracts covering approximately
6.0 Bcf during the period March through September 1994. The "approximate
break-even price" (the average of the monthly settlement prices of the
applicable futures contracts which would result in no settlement being due to or
from the Company) with respect to such contracts is approximately $1.89 per Mcf.
The Company has no other outstanding natural gas hedging instruments.

  ENVIRONMENTAL REGULATION

    Federal, state and local laws and regulations relating to environmental
quality control affect the Company in all of its oil and gas operations. The
Company has been identified as one of over 250 potentially responsible parties
("PRPs") at a superfund site in Los Angeles County, California. The site was
operated by a third party as a waste disposal facility from 1948 until 1983. The
Environmental Protection Agency ("EPA") is requiring the PRPs to undertake
remediation of the site in
    


                                      F-40

<PAGE>   112
   
                        SANTA FE ENERGY RESOURCES, INC.
     NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)

several phases, which include site monitoring and leachate control, gas control
and final remediation. In 1989, the EPA and a group of the PRPs entered into a
consent decree covering the site monitoring and leachate control phases of
remediation. The Company is a member of the group that is responsible for
carrying out this first phase of work, which is expected to be completed in five
to eight years. The maximum liability of the group, which is joint and several
for each member of the group, for the first phase is $37.0 million, of which the
Company's share is expected to be approximately $2.4 million ($1.3 million after
recoveries from working interest participants in the unit at which the wastes
were generated) payable over the period that the phase one work is performed.
The EPA and a group of PRPs of which the Company is a member have also entered
into a subsequent consent decree with respect to the second phase of work (gas
control). The liability of this group has not been capped, but is estimated to
be $130.0 million. The Company's share of costs of this phase, however, is
expected to be approximately of the same magnitude as that of the first phase
because more parties are involved in the settlement. The Company has provided
for costs with respect to the first two phases, but it cannot currently estimate
the cost of any subsequent phases of work or final remediation which may be
required by the EPA.

    In 1989, Adobe received requests from the EPA for information pursuant to
Section 104(e) of CERCLA with respect to the D. L. Mud and Gulf Coast Vacuum
Services superfund sites located in Abbeville, Louisiana. The EPA has issued its
record of decision at the Gulf Coast Site and on February 9, 1993 the EPA issued
to all PRP's at the site a settlement order pursuant to Section 122 of CERCLA.
Earlier, an emergency order pursuant to Section 106 of CERLA was issued on
December 11, 1992, for purposes of containment due to the Louisiana rainy
season. On December 15, 1993 the Company entered into a sharing agreement with
other PRP'S to participate in the final remediation of the Gulf Coast site. The
Company's share of the remediation is approximately $600,000 and includes its
proportionate share of those PRPs who do not have the financial resources to
provide their share of the work at the site. A former site owner has already
conducted remedial activities at the D. L. Mud Site under a state agency
agreement. The extent, if any, of any further necessary remedial activity at the
D. L. Mud Site has not been finally determined.

    The Company has received a request for information from the EPA regarding
the Lee Acres Landfill CERCLA site in New Mexico. The Company advised the EPA
that it was not able to locate any information indicating that it had used that
facility. The Company is investigating its potential connection, if any, to this
facility and is not able to estimate its share of costs, if any, for the site at
this time.

    On April 4, 1994, the Company received a request from the EPA for
information pursuant to Section 104(a) of CERCLA and a letter ordering the
Company and seven other PRPs to negotiate with the EPA regarding implementation
of a remedial plan for a site located in Santa Fe Springs, California. The
Company owned the property on which the site is located from 1921 to 1932. After
the Company sold the property, hazardous wastes were allegedly disposed there by
a third party who operated a disposal site. The EPA estimates that the total
past and future costs for remediation will approximate $9 million. The Company
believes that it has valid defenses to liability. While it is still
investigating its exposure, if any, for the remedial costs, the Company does not
believe that any such costs would be material.

  EMPLOYMENT AGREEMENTS

    The Company has entered into employment agreements with certain key
employees. The initial term of each agreement expired on December 31, 1990 and,
on January 1, 1991 and beginning on each January 1 thereafter, is automatically
extended for one-year periods, unless by September 30 of any year the Company
gives notice that the agreement will not be extended. The term of the
    


                                      F-41

<PAGE>   113
   
                        SANTA FE ENERGY RESOURCES, INC.
     NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)

agreements is automatically extended for 24 months following a change of
control. The consummation of the merger of Adobe Resources into the Company in
1992 constituted a change of control as defined in the agreements.

In the event that following a change of control employment is terminated for
reasons specified in the agreements, the employee would receive: (i) a lump sum
payment equal to two years' base salary; (ii) the maximum possible bonus under
the terms of the Company's incentive compensation plan; (iii) a lapse of
restrictions on any outstanding restricted stock grants and full payout of any
outstanding Phantom Units; (iv) cash payment for each outstanding stock option
equal to the amount by which the fair market value of the common stock exceeds
the exercise price of the option; and, (v) life, disability and health benefits
for a period of up to two years. In addition, payments and benefits under
certain employment agreements are subject to further limitations based on
certain provisions of the Internal Revenue Code.

  OTHER MATTERS

    The Company has several long-term contracts ranging up to fifteen years for
the supply and transportation of approximately 30 million cubic feet per day of
natural gas. In the aggregate, these contracts involve a minimum commitment on
the part of the Company of approximately $10 million per year.

    There are other claims and actions, including certain other environmental
matters, pending against the Company. In the opinion of management, the amounts,
if any, which may be awarded in connection with any of these claims and actions
could be significant to the results of operations of any period but would not be
material to the Company's consolidated financial position.
    


                                      F-42
<PAGE>   114
 
NO DEALER, SALESPERSON OR ANY OTHER  
PERSON HAS BEEN AUTHORIZED TO GIVE                       $100,000,000
ANY INFORMATION OR TO MAKE ANY     
REPRESENTATIONS OTHER THAN THOSE
CONTAINED IN OR INCORPORATED BY
REFERENCE IN THIS PROSPECTUS IN
CONNECTION WITH THE OFFER MADE BY
THIS PROSPECTUS AND, IF GIVEN OR
MADE, SUCH INFORMATION OR
REPRESENTATIONS MUST NOT BE RELIED
UPON AS HAVING BEEN AUTHORIZED BY
THE COMPANY OR ANY OF THE
UNDERWRITERS. NEITHER THE DELIVERY OF
THIS PROSPECTUS NOR ANY SALE MADE                      SANTA FE ENERGY
HEREUNDER SHALL, UNDER ANY CIRCUMSTANCES,              RESOURCES, INC.
CREATE ANY IMPLICATION THAT THERE
HAS BEEN NO CHANGE IN THE AFFAIRS
OF THE COMPANY SINCE THE DATE
HEREOF. THIS PROSPECTUS DOES NOT
CONSTITUTE AN OFFER OR SOLICITATION
BY ANYONE IN ANY JURISDICTION IN
WHICH SUCH OFFER OR SOLICITATION IS
NOT AUTHORIZED OR IN WHICH THE
PERSON MAKING SUCH OFFER IS NOT
QUALIFIED TO DO SO OR TO ANY
PERSON TO WHOM IT IS UNLAWFUL TO                      % SENIOR SUBORDINATED
MAKE SUCH SOLICITATION.                                DEBENTURES DUE 2004
 
         -----------------
 
         TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                          PAGE
                                         ------             [LOGO]
<S>                                        <C>
Available Information..................      2
Documents Incorporated by Reference....      2
Certain Definitions....................      2
Prospectus Summary.....................      3
Investment Considerations..............     11
Ratios of Earnings to Fixed Charges....     15
Use of Proceeds........................     15         SALOMON BROTHERS INC
Capitalization.........................     16       DILLON, READ & CO. INC.
Selected Financial and Operating                       LAZARD FRERES & CO.
  Data.................................     17       CHEMICAL SECURITIES INC.             
Management's Discussion and Analysis of                
  Financial Condition and Results of                 
  Operations...........................     19         
Business and Properties................     26      
Management.............................     44
Description of the Debentures..........     47
Underwriting...........................     68
Validity of the Debentures.............     69
Experts................................     69            PROSPECTUS
Index to Financial Statements..........    F-1        DATED MAY   , 1994
</TABLE>

 
                                                     
                                                       
                                                    




 
                                                         
                                                     
<PAGE>   115
 
     Information contained herein is subject to completion or amendment. A
     registration statement relating to these securities has been filed with the
     Securities and Exchange Commission. These securities may
     not be sold nor may offers to buy be accepted prior to the time the
     registration statement becomes effective. This prospectus shall not
     constitute an offer to sell or the solicitation of an offer
     to buy nor shall there be any sale of these securities in any State in
     which such offer, solicitation or sale would be unlawful prior to
     registration or qualification under the securities laws of any such State.
 
                             SUBJECT TO COMPLETION
   
                                  MAY 12, 1994
    
 
PROSPECTUS
 
10,700,000 DECSSM
(DIVIDEND ENHANCED CONVERTIBLE STOCKSM--DECSSM)
 
SANTA FE ENERGY RESOURCES, INC.                                         [LOGO]
$              SERIES A CONVERTIBLE PREFERRED STOCK
(PAR VALUE $0.01 PER SHARE)
 
(SUBJECT TO CONVERSION INTO OR REDEMPTION FOR SHARES OF COMMON STOCK, PAR VALUE
$0.01 PER SHARE)
The DECS offered hereby (the "Offering") are 10,700,000 shares of
$        Series A Convertible Preferred Stock of Santa Fe Energy Resources,
Inc., a Delaware corporation (the "Company"), and are referred to herein as
Dividend Enhanced Convertible Stock (the "DECS").
 
On March 31, 1998 (the "Mandatory Conversion Date"), each of the outstanding
DECS will automatically convert into one share of the Company's common stock,
par value $0.01 per share (the "Common Stock"), subject to adjustment in certain
events, if not previously redeemed by the Company or converted at the option of
the holder. The DECS are redeemable, at the option of the Company, in whole or
in part, on or after March 31, 1997 (the "Initial Redemption Date"), at a call
price payable in shares of Common Stock, and are convertible at the option of
the holder at any time into    shares of Common Stock, in each case as described
below. The number of shares of Common Stock a holder will receive upon
redemption, and the value of the shares received upon conversion, will vary
depending on the market price of the Common Stock at the time of redemption or
conversion, all as described herein.
 
Dividends on the DECS are cumulative at the annual rate of $        per share
and are payable quarterly in arrears on the first day of January, April, July
and October, commencing July 1, 1994. Each DECS has a liquidation preference
equal to the sum of (i) the per share price to public shown below and (ii) the
amount of accrued and unpaid dividends thereon to the date of liquidation,
dissolution or winding up.
 
The DECS are not redeemable by the Company prior to the Initial Redemption Date.
At any time and from time to time on or after the Initial Redemption Date and
prior to the Mandatory Conversion Date, the Company may redeem the outstanding
DECS, in whole or in part. Upon any such redemption, each holder of DECS will
receive, in exchange for each DECS so redeemed, shares of Common Stock having a
Current Market Price equal to the sum of (i) beginning on the Initial Redemption
Date, $        , and declining thereafter on the schedule set forth herein to
$        per share on January 1, 1998 and (ii) all accrued and unpaid dividends
thereon (the "Call Price"). See "Description of the DECS."
 
The DECS are convertible at the option of the holder, at any time prior to the
Mandatory Conversion Date, into    shares of Common Stock for each DECS
(equivalent to a conversion price of $      per share of Common Stock (the
"Conversion Price")), subject to adjustment upon certain events.
 
The opportunity for equity appreciation afforded by an investment in the DECS is
less than the opportunity for equity appreciation afforded by an investment in
the Common Stock because the Company may, at its option, redeem the DECS at any
time on or after the Initial Redemption Date and prior to the Mandatory
Conversion Date, and may be expected to do so if, prior to the Mandatory
Conversion Date, the current market price of the Common Stock exceeds the
Conversion Price. In such event, holders of the DECS will receive less than one
share of Common Stock for each DECS. However, because holders of DECS called for
redemption will have the option to surrender DECS for conversion at the
Conversion Price up to the close of business on the redemption date (and may be
expected to do so if the market price of the Common Stock exceeds the Conversion
Price), a holder that elects to convert will receive    shares of Common Stock
for each DECS. Because the price of Common Stock is subject to market
fluctuations, the value of the Common Stock received by an owner of DECS upon
mandatory conversion of the DECS may be more or less than the amount paid for
the DECS offered hereby.
 
The offering made hereby is part of a refinancing by the Company (the
"Refinancing"), consisting of this Offering and a concurrent offering (the
"Concurrent Debenture Offering") of $100 million of Senior Subordinated
Debentures Due 2004 (the "Debentures"). This Offering is not conditioned on the
Concurrent Debenture Offering, and the Concurrent Debenture Offering is not
conditioned on this Offering.
 
   
The Common Stock is listed on the New York Stock Exchange ("NYSE") under the
symbol SFR. On May 11, 1994, the last reported sale price of the Common Stock on
the NYSE was $9 per share. See "Price Range of Common Stock and Dividends."
    
 
The DECS have been approved for listing on the NYSE under the symbol SFRPRA.
 
SEE "INVESTMENT CONSIDERATIONS" FOR A DISCUSSION OF CERTAIN FACTORS THAT SHOULD
BE CONSIDERED BY PROSPECTIVE INVESTORS BEFORE DECIDING TO INVEST IN THE DECS.
 
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                PRICE TO       UNDERWRITING     PROCEEDS TO
                                                PUBLIC(1)         DISCOUNT      COMPANY(1)(2)
<S>                                               <C>              <C>                  <C>
Per DECS......................................    $                $                    $
Total(3)......................................    $                $                    $
</TABLE>                                                                    
                                    
- --------------------------------------------------------------------------------
(1) Plus accrued dividends, if any, from the date of original issuance.
(2) Before deducting expenses payable by the Company estimated to be $500,000.
(3) The Company has granted the Underwriters an option, exercisable within 30
    days from the date hereof, to purchase up to an aggregate of 1,605,000
    additional DECS at the Price to Public, less Underwriting Discount, for the
    purpose of covering over-allotments, if any. If the Underwriters exercise
    such option in full, the total Price to Public, Underwriting Discount, and
    Proceeds to Company will be $        , $        , and $        ,
    respectively. See "Underwriting."
 
The DECS are offered subject to receipt and acceptance by the Underwriters, to
prior sale and to the Underwriters' right to reject any order in whole or in
part and to withdraw, cancel or modify the offer without notice. It is expected
that delivery of the DECS will be made at the office of Salomon Brothers Inc,
Seven World Trade Center, New York, New York, or through the facilities of The
Depository Trust Company, on or about May   , 1994.

SALOMON BROTHERS INC
                     LAZARD FRERES & CO.
                                                        PAINEWEBBER INCORPORATED
The date of this Prospectus is May   , 1994.
<PAGE>   116
 
IN CONNECTION WITH THIS OFFERING, THE UNDERWRITERS MAY OVER-ALLOT OR EFFECT
TRANSACTIONS THAT STABILIZE OR MAINTAIN THE MARKET PRICE OF THE DECS AND THE
COMMON STOCK AT A LEVEL ABOVE THAT WHICH MIGHT OTHERWISE PREVAIL IN THE OPEN
MARKET. SUCH TRANSACTIONS MAY BE EFFECTED ON THE NEW YORK STOCK EXCHANGE OR
OTHERWISE. SUCH TRANSACTIONS, IF COMMENCED, MAY BE DISCONTINUED AT ANY TIME.
 
                             AVAILABLE INFORMATION
 
     The Company is subject to the informational requirements of the Securities
Exchange Act of 1934, as amended, and the rules and regulations promulgated
thereunder (the "Exchange Act") and, in accordance therewith, files reports,
proxy statements and other information with the Securities and Exchange
Commission (the "Commission"). Reports, proxy statements and other information
filed by the Company with the Commission may be inspected and copied at the
public reference facilities maintained by the Commission at Room 1024, 450 Fifth
Street, N.W., Judiciary Plaza, Washington, D.C. 20549-1004, and at the following
Regional Offices of the Commission: Chicago Regional Office, CitiCorp Center,
500 West Madison Street, Suite 1400, Chicago, Illinois 60621 2511; and New York
Regional Office, 7 World Trade Center, 13th Floor, New York, New York 10048.
Copies of such material may also be obtained at prescribed rates from the Public
Reference Section of the Commission at its principal office at 450 Fifth Street,
N.W., Judiciary Plaza, Washington, D.C. 20549-1004. The Company's Common Stock
and its Convertible Preferred Stock, Series 7%, are listed for trading on the
NYSE. The Company's registration statements, reports, proxy statements and other
information may also be inspected at the offices of the NYSE, 20 Broad Street,
New York, New York 10005.
 
                      DOCUMENTS INCORPORATED BY REFERENCE
 
   
     The following documents heretofore filed by the Company with the Commission
pursuant to Section 13 of the Exchange Act are incorporated herein by reference:
(i) the Company's Annual Report on Form 10-K for the year ended December 31,
1993; (ii) the Company's Quarterly Report on Form 10-Q for the quarterly period
ended March 31, 1994; (iii) the Company's Current Report on Form 8-K dated
February 8, 1994; and (iv) the description of the Common Stock contained in the
Company's Registration Statement on Form 8-A (File No. 1-7667) filed on February
21, 1990.
    
 
     All documents filed by the Company pursuant to Section 13(a), 13(c), 14 or
15(d) of the Exchange Act subsequent to the date of this Prospectus and prior to
the termination of the offering of the Debentures shall be deemed to be
incorporated by reference into this Prospectus and to be a part hereof from the
date of filing of such documents. Any statement contained in a document
incorporated or deemed to be incorporated by reference herein shall be deemed to
be modified or superseded for purposes of this Prospectus to the extent that a
statement contained herein or in any other subsequently filed document which
also is or is deemed to be incorporated by reference herein modifies or
supersedes such statement. Any such statement so modified or superseded shall
not be deemed, except as so modified or superseded, to constitute a part of this
Prospectus.
 
     Any person receiving a copy of this Prospectus may obtain without charge,
upon written or oral request, a copy of any of the documents incorporated by
reference herein, except for the exhibits to such documents (unless such
exhibits are specifically incorporated by reference into such documents).
Requests should be addressed to Mark A. Older, Senior Counsel and Secretary,
Santa Fe Energy Resources, Inc., 1616 South Voss Road, Suite 1000, Houston,
Texas 77057 (telephone (713) 783 2401).
 
                              CERTAIN DEFINITIONS
 
     As used herein, the following terms have the specific meanings set out:
"Bbl" means barrel, "MBbl" means thousand barrels, "MMBbl" means million
barrels, "Mcf" means thousand cubic feet, "MMcf" means million cubic feet, "Bcf"
means billion cubic feet, "BOE" means barrel of oil equivalent, "MBOE" means
thousand barrels of oil equivalent and "MMBOE" means million barrels of oil
equivalent. Natural gas volumes are converted to barrels of oil equivalent using
the ratio of 6.0 Mcf of natural gas to 1.0 barrel of crude oil. Unless otherwise
indicated in this Prospectus, natural gas volumes are stated at the official
temperature and pressure bases of the area in which the reserves are located.
"Finding cost" refers to a fraction, of which the numerator is equal to the
costs incurred by the Company for property acquisition, exploration and
development and of which the denominator is equal to proved reserve additions
from extensions, discoveries, improved recovery, acquisitions and revisions of
previous estimates. "Improved recovery," "enhanced oil recovery" and "EOR"
include all methods of supplementing natural reservoir forces and energy, or
otherwise increasing ultimate recovery from a reservoir, such as waterfloods,
cyclic steam, steam drive and CO2 (carbon dioxide) injection and fireflood
projects. "Heavy oil" is low gravity, high viscosity crude oil.
 
                                        2
<PAGE>   117
 
                               PROSPECTUS SUMMARY
 
     The following information is a summary of the more detailed information and
financial statements appearing elsewhere or incorporated by reference in this
Prospectus and is qualified in its entirety by reference thereto. Unless
otherwise indicated or required by the context, references to "Santa Fe" and the
"Company" include its consolidated subsidiaries and the information set forth
herein assumes that the Underwriters' over-allotment option is not exercised.
 
                                  THE COMPANY
 
GENERAL
 
     Santa Fe Energy Resources, Inc. ("Santa Fe" or the "Company") is engaged in
the exploration, development and production of oil and natural gas in the
continental United States and in certain foreign areas. At December 31, 1993,
the Company had estimated worldwide proved reserves of oil and natural gas
totaling 292.0 MMBOE (consisting of approximately 248.2 MMBbls of oil and
approximately 263.0 Bcf of natural gas), of which approximately 93% were
domestic reserves and approximately 7% were foreign reserves. During 1993, the
Company's worldwide production aggregated approximately 94.3 MBOE per day, of
which approximately 71% was crude oil and approximately 29% was natural gas. A
substantial portion of the Company's domestic oil production is in long-lived
fields with well-established production histories. Pursuant to the Company's
corporate restructuring program, the Company has focused its activities on its
three domestic core areas--the Permian Basin in Texas and New Mexico, the
offshore Gulf of Mexico and the San Joaquin Valley of California--as well as in
Argentina and Indonesia.
 
     For the five years ended December 31, 1993, the Company has replaced 172%
of its production at an average finding cost of $4.80 per BOE. Over the last
four years, the Company has increased overall production by increasing
production from existing properties and through acquisitions. In addition, the
Company has reduced its overall cost structure. For example, over the four-year
period ended December 31, 1993, Santa Fe has increased its average daily
production from 69.1 MBOE to 94.3 MBOE (including 7.7 MBOE per day in 1993
attributable to production from non-core assets sold pursuant to the corporate
restructuring program) and has reduced its average production costs (including
related production, severance and ad valorem taxes) from $6.22 per BOE in 1990
to $5.39 per BOE in 1993.
 
CORPORATE RESTRUCTURING PROGRAM
 
     In October 1993, the Company's Board of Directors adopted a broad corporate
restructuring program designed to improve its earnings and cash flow while
increasing production and replacing reserves in the long-term. The restructuring
program is the result of an intensive review of the Company's operations and
cost structure and focuses on the concentration of capital spending in the
Company's core operating areas and the disposition of non-core assets. The
restructuring program also includes an evaluation of the Company's capital and
cost structures in an effort to identify and implement ways to increase
flexibility and strengthen the Company's financial performance.
 
     The Company's capital program will be concentrated in its three domestic
core areas, as well as in its productive areas in Argentina and Indonesia. In
October 1993, Sante Fe announced that its 1994 capital expenditures could
increase to up to $240 million. However, as a result of the depressed crude oil
prices that have prevailed since November 1993, the Company, consistent with
industry practice, has determined to defer certain of its capital projects in
order to prudently manage available cash flow in the near term. Based on current
market conditions, the Company has authorized up to $130 million of capital
expenditures during 1994, a level which should allow the Company to replace its
estimated 1994 production, although no assurance can be given regarding such
replacement. The Company intends to continue to monitor its capital expenditure
program throughout the balance of 1994 and may, in response to industry
conditions, including, without limitation, prevailing oil and natural gas prices
and the outlook therefor, revise such program.
 
     The non-core asset dispositions identified by the Company's restructuring
program included the sale of its natural gas gathering and processing assets for
securities as well as the sales of non-core oil and
 
                                        3
<PAGE>   118
 
   
gas properties consisting of approximately 16.7 MMBOE of estimated proved
reserves and undeveloped leasehold acreage for approximately $89.3 million. In
addition, during the first quarter of 1994, the Company sold its remaining
interest in the Santa Fe Energy Trust for $11.3 million and its interest in
certain oil and gas properties for $8.3 million. As a result of these
transactions, the Company has disposed of substantially all of its inventory of
non-core assets.
    
 
     Based on a review of its capital structure, the Company determined to
proceed with a refinancing of certain of the Company's indebtedness (the
"Refinancing") in the belief that it would increase the Company's financial
flexibility, strengthen the Company's financial position and permit the Company
to pursue aggressively its operating strategy. See "--Financial Strategy." The
evaluation of the Company's cost structure resulted in the announcement on April
25, 1994 of the implementation of a cost reduction program designed to reduce
the Company's expenses by approximately $30.0 million from the 1993 level (which
reduction includes approximately $5.0 million of non-recurring costs).
Substantially all of this cost reduction program is expected to be implemented
by year end 1994.
 
     As part of its restructuring program the Company adopted the following
operating, financial and cost reduction strategies that should position it to
continue to efficiently replace its production and increase its reserves even in
a low oil price environment.
 
OPERATING STRATEGY
 
     Santa Fe's operating strategy is designed to replace reserves and increase
its production in a cost effective manner by (i) exploiting its inventory of
lower risk, higher return projects in its domestic core areas, (ii) increasing
its light crude oil and natural gas reserves and production, and (iii)
increasing its international operations.
 
     Develop Domestic Properties in Core Areas.  A principal focus of the
Company's corporate restructuring program is the concentration of capital
spending in the Company's core domestic areas-- the Permian Basin of Texas and
New Mexico, the offshore Gulf of Mexico and the San Joaquin Valley of
California. In these areas, the Company has identified a significant number of
attractive development opportunities. Selection and timing of projects will
depend upon factors such as oil and natural gas prices and availability of
funds. In southeastern New Mexico, the Company has targeted for accelerated
development a light oil prospect in the Delaware formation and a light oil and
gas project in the Cisco-Canyon zone. The Company has conducted extensive
operations in these areas and has identified in excess of 150 development well
locations and 20 exploratory prospects to be drilled over the next several
years. During 1993, several new fields or field additions in the Offshore Gulf
of Mexico area were placed on production, and the Company expects to further
develop identified prospects in 1994. In the San Joaquin Valley, reservoir
engineering studies prepared on behalf of the Company indicate that significant
additions to proved reserves can be made through additional EOR and development
projects in several of the Company's long-lived fields with well-established
production histories.
 
     Increase Light Crude Oil and Natural Gas.  A substantial part of the
Company's domestic oil reserves consists of "heavy" oil, which is generally more
expensive to produce than, and sells at a significant discount to, lighter crude
oils such as the benchmark West Texas Intermediate. See "Investment
Considerations--Effects of Heavy Oil Production" and "Management's Discussion
and Analysis of Financial Condition and Results of Operations--General." One of
the principal components of the Company's strategy is to reduce the proportion
of heavy oil in its reserves by increasing its lighter crude oil and natural gas
reserves, primarily through development drilling of its existing project
inventory (such as the Permian Basin and offshore Gulf of Mexico, as discussed
above) and selective acquisitions. The acquisition of Adobe Resources
Corporation ("Adobe")in May 1992 added significantly to the Company's lighter
crude oil and natural gas reserves.
 
     Increase International Operations.  The Company is actively engaged in
exploration and development activities in two foreign areas, Argentina and
Indonesia. The Company believes that it can continue to identify and pursue
other projects with the potential for increased reserves and production in these
and possibly other foreign areas. Revenues from sales of oil and gas production
in these areas have increased from approximately $3.7 million in 1991 to $35.6
million in 1993, with average daily production volumes
 
                                        4
<PAGE>   119
 
from these areas increasing from 0.6 MBOE per day in 1991 to 6.5 MBOE per day in
1993. The Company made a significant exploration discovery in 1993--the Sierra
Chata natural gas discovery in Argentina. To date, six gross (1.3 net) wells
have been drilled with no dry holes. In 1994, the Company plans additional
development drilling to further define the limits of the field, and to construct
a gas processing plant and a 40-mile pipeline. First sales of production from
this discovery are expected in early 1995.
 
FINANCIAL STRATEGY
 
   
     The Company's financial strategy is to provide additional flexibility in
the current low oil price environment thereby allowing the Company to further
implement its operating strategy. This Offering is part of the Refinancing,
consisting of this Offering and the Concurrent Debenture Offering. The net
proceeds from the Refinancing will be utilized to repay a portion of the
Company's senior indebtedness (on a pro forma basis at March 31, 1994, an
aggregate of approximately $180 million of senior indebtedness would be repaid
with such net proceeds). See "Use of Proceeds."
    
 
   
     Completion of the Refinancing will extend the average life of the Company's
debt from approximately 4.5 years to approximately 7.5 years, reduce the
Company's overall leverage and reduce required debt amortization in 1994, 1995
and 1996 to $3.7 million, $5.3 million and $9.6 million, respectively (on a pro
forma basis at March 31, 1994). The Refinancing will also provide additional
liquidity by increasing the total amount available for borrowing under the
Company's existing bank credit facilities and by increasing cash flow in the
near term.
    
 
COST REDUCTION STRATEGY
 
   
     On April 25, 1994, the Company announced the implementation of a major cost
reduction program aimed at reducing its expenses by approximately $30.0 million
from the 1993 level (which reduction includes approximately $5.0 million of
non-recurring costs). The Company intends to reduce its field expenses by
approximately $10.0 million, reduce its salaried work force by approximately
20%, significantly improve the efficiency of its information systems activities
and substantially reduce other general and administrative costs. Substantially
all of this cost reduction program is expected to be implemented by year end
1994. The Company recorded a $7.0 million charge during the quarter ended March
31, 1994 in connection with implementation of the cost reduction program.
    
 
                               THE DECS OFFERING
 
<TABLE>
<S>                              <C>
Securities Offered............   10,700,000 shares (12,305,000 shares if the Underwriters'
                                 over-allotment option is exercised in full) of Series A
                                 Convertible Preferred Stock, referred to as Dividend
                                 Enhanced Convertible Stock (the "DECS").
Securities....................   The DECS are shares of convertible preferred stock and rank
                                 prior to the Common Stock both as to payment of dividends
                                 and distribution of assets upon liquidation. Each
                                 outstanding DECS mandatorily converts into one share of
                                 Common Stock on March 31, 1998 (the "Mandatory Conversion
                                 Date"), and the Company has the option to redeem the shares
                                 of DECS, in whole or in part, at any time and from time to
                                 time on or after March 31, 1997 (the "Initial Redemption
                                 Date") and prior to the Mandatory Conversion Date at the
                                 Call Price (as defined herein), payable in shares of Common
                                 Stock. In addition, each DECS is convertible into
                                 shares of Common Stock at the option of the holder at any
                                 time prior to the Mandatory Conversion Date as set forth
                                 below.
Dividends.....................   The holders of DECS are entitled to receive, when, as and if
                                 dividends are declared by the Board of Directors of the
                                 Company out of funds legally available therefor, cumulative
                                 preferential dividends from the issue date of the DECS,
                                 accruing at the rate per share of $       per annum
                                 ($       per quarter) for each DECS, payable quarterly in
                                 arrears on the first day of each January, April, July and
                                 October or, if any such date is not a business day, on the
                                 next succeeding business day. The first dividend payment
                                 will be for the
</TABLE>
 
                                        5
<PAGE>   120
 
<TABLE>
<S>                              <C>
                                 period from the issue date of the DECS to and including June
                                 30, 1994 and will be payable on July 1, 1994. Dividends are
                                 payable in cash except in connection with certain
                                 redemptions by the Company. Accumulated and unpaid dividends
                                 will not bear interest. See "Description of the
                                 DECS--Dividends."
Mandatory Conversion of
DECS..........................   On the Mandatory Conversion Date, each outstanding DECS will
                                 convert (the "Mandatory Conversion") automatically into
                                 shares of Common Stock at the Common Equivalent Rate and the
                                 right to receive an amount of cash equal to all accrued and
                                 unpaid dividends on such DECS (other than dividends payable
                                 to a holder of record on a prior date). The "Common
                                 Equivalent Rate" is initially one share of Common Stock for
                                 each DECS, subject to adjustment in the event of certain
                                 stock dividends or distributions, subdivisions, splits,
                                 combinations, issuances of certain rights or warrants or
                                 distributions of certain assets with respect to the Common
                                 Stock. The Mandatory Conversion is, however, subject to the
                                 Company's right to redeem all or a portion of the
                                 outstanding DECS on or after the Initial Redemption Date and
                                 prior to the Mandatory Conversion Date, and to the
                                 conversion of the DECS at the option of the holder at any
                                 time prior to the Mandatory Conversion Date. See
                                 "--Description of the DECS--Right to Redeem DECS" and
                                 "Description of the DECS-- Mandatory Conversion of DECS."
                                 Because the price of the Common Stock is subject to market
                                 fluctuations, the value of the Common Stock received upon
                                 Mandatory Conversion of the DECS may be more or less than
                                 the amount paid for the DECS offered hereby.
Right to Redeem DECS..........   The DECS are not redeemable by the Company prior to the
                                 Initial Redemption Date. At any time or from time to time on
                                 or after the Initial Redemption Date and prior to the
                                 Mandatory Conversion Date, the Company may redeem the
                                 outstanding DECS, in whole or in part. Upon any such
                                 redemption, each holder of DECS will receive, in exchange
                                 for each DECS so called, a number of shares of Common Stock
                                 equal to the Call Price of the DECS in effect on the date of
                                 redemption divided by the Current Market Price of the Common
                                 Stock determined as of the date which is one trading day
                                 prior to the public announcement of the call for redemption.
                                 The "Call Price" of each DECS is the sum of (i) $       on
                                 and after the Initial Redemption Date through June 30, 1997,
                                 $       on and after July 1, 1997 through September 30,
                                 1997, $       on and after October 1, 1997 through December
                                 31, 1997, $       on and after January 1, 1998 until the
                                 Mandatory Conversion Date, and (ii) all accrued and unpaid
                                 dividends thereon to the date fixed for redemption (other
                                 than dividends payable to a holder of record as of a prior
                                 date). The number of shares of Common Stock to be delivered
                                 in payment of the applicable Call Price will be based upon
                                 the current market price of the Common Stock prior to the
                                 announcement of the redemption, and the market price of the
                                 Common Stock may vary between the date of such determination
                                 and the subsequent delivery of such shares. See "Description
                                 of the DECS--Right to Redeem DECS."
Conversion at Option of
Holder........................   The DECS are convertible, in whole or in part, at the option
                                 of the holder at any time prior to the Mandatory Conversion
                                 Date, unless previously redeemed, into    shares of Common
                                 Stock for each DECS (equivalent to a Conversion Price of
                                 $       per share of Common Stock), subject to adjustment in
                                 the event of certain stock dividends or distributions,
                                 subdivisions, splits, combinations, issuances of certain
                                 rights or warrants or distributions of certain assets with
                                 respect to the Common Stock. The right of holders to convert
                                 DECS called for redemption will terminate immediately prior
</TABLE>
 
                                        6
<PAGE>   121
 
   
<TABLE>
<S>                              <C>
                                 to the close of business on the redemption date. See
                                 "Description of the DECS--Conversion at Option of Holders."
Enhanced Dividend Yield; Less
Equity Appreciation Than
Common Stock..................   No dividends are currently paid on the Common Stock. The
                                 opportunity for equity appreciation afforded by an
                                 investment in the DECS is less than that afforded by an
                                 investment in the Common Stock because the Conversion Price
                                 is higher than the per share price to public of the DECS and
                                 the Company may, at its option, redeem the DECS at any time
                                 on or after the Initial Redemption Date, and prior to the
                                 Mandatory Conversion Date, and may be expected to do so, if,
                                 among other circumstances, the applicable Current Market
                                 Price of the Common Stock exceeds the Call Price. In such
                                 event, a holder of a DECS will receive less than one share
                                 of Common Stock, but in no event less than    shares of
                                 Common Stock. A holder may also surrender for conversion any
                                 DECS called for redemption up to the close of business on
                                 the redemption date, and a holder that so elects to convert
                                 will receive    shares of Common Stock per DECS. The value
                                 of Common Stock received by a holder of a DECS may be more
                                 or less than the per share amount paid for the DECS offered
                                 hereby, due to market fluctuations in the price of Common
                                 Stock. See "Description of the DECS--Mandatory Conversion of
                                 DECS" and "--Right to Redeem DECS."
Liquidation Preference........   The DECS rank senior to the Common Stock upon liquidation
                                 and pari passu with the Company's outstanding shares of
                                 Convertible Preferred Stock, Series 7% (of which 5,000,000
                                 shares are outstanding with a liquidation preference of
                                 $20.00 per share plus accrued and unpaid dividends thereon).
                                 The liquidation preference of each of the DECS will be in an
                                 amount equal to the sum of (i) the per share price to the
                                 public shown on the cover page hereof and (ii) all accrued
                                 and unpaid dividends thereon to the date of liquidation,
                                 dissolution or winding up.
Voting Rights.................   The holders of DECS shall have the right with the holders of
                                 Common Stock to vote in the election of directors and upon
                                 each other matter coming before any meeting of the
                                 stockholders on the basis of 4/5 votes for each DECS held;
                                 the holders of DECS and the holders of Common Stock will
                                 vote together as one class. In addition, (i) whenever
                                 dividends on the DECS shall be in arrears and unpaid in an
                                 aggregate amount of dividends payable thereon for four
                                 quarterly dividend periods, the holders of the DECS (voting
                                 separately as a class with holders of shares of Convertible
                                 Preferred Stock, Series 7%, and shares of all other series
                                 of Preferred Stock, if any, upon which like voting rights
                                 have been conferred and are exercisable) will be entitled to
                                 vote for the election of two directors of the Company, such
                                 directors to be in addition to the number of directors
                                 constituting the Board of Directors immediately prior to the
                                 accrual of such right, and (ii) the holders of the DECS will
                                 have voting rights with respect to certain alterations of
                                 the Company's Restated Certificate of Incorporation. See
                                 "Description of the DECS --Voting Rights."
Use of Proceeds...............   The net proceeds to the Company from the sale of the DECS
                                 offered hereby are estimated to be $91.6 million. Such net
                                 proceeds will be used to repay certain of the Company's
                                 senior indebtedness. See "Use of Proceeds."
Listing.......................   The DECS have been approved for listing on the NYSE under
                                 the symbol SFRPRA.
</TABLE>
    
 
                                        7
<PAGE>   122
 
                         SUMMARY FINANCIAL INFORMATION
 
   
     The following table presents summary historical financial information for
the periods presented and should be read in conjunction with the historical
consolidated financial statements, including the notes thereto, and
"Management's Discussion and Analysis of Financial Condition and Results of
Operations." The following table also presents summary pro forma financial
information as of and for the year ended December 31, 1993 and the three months
ended March 31, 1994 after giving effect to the consummation of this Offering
and the Concurrent Debenture Offering and the application of the estimated net
proceeds therefrom as described in "Use of Proceeds." The summary pro forma
financial information and the summary historical financial information as of and
for the three months ended March 31, 1993 and 1994 is unaudited.
    
 
   
<TABLE>
<CAPTION>
                                   PRO FORMA(A)            THREE MONTHS
                               ---------------------      ENDED MARCH 31,                  YEAR ENDED DECEMBER 31,
                               1ST QTR        1993      -------------------   --------------------------------------------------
                                 1994         YEAR        1994       1993       1993        1992      1991      1990      1989
                               --------     --------    --------   --------   --------    --------   -------   -------   -------
                                                         (IN MILLIONS, EXCEPT PER SHARE DATA)
<S>                            <C>          <C>         <C>        <C>        <C>         <C>        <C>       <C>       <C>
INCOME STATEMENT DATA:
  Revenues.................... $   90.3     $  436.9    $   90.3   $  115.3   $  436.9    $  427.5   $ 379.8   $ 382.9   $ 322.9
  Production and operating
    expenses..................     40.6        163.8        40.6       42.7      163.8       153.4     134.6     135.5     107.1
  Exploration expenses........      5.0         31.0         5.0        7.1       31.0        25.5      18.7      21.0      19.4
  General and
    administrative............      7.6         32.3         7.6        7.0       32.3        30.9      27.8      25.6      28.6
  Depreciation, depletion and
    amortization..............     32.1        152.7        32.1       37.6      152.7       146.3     106.6     105.2      99.4
  Impairment of oil and gas
    properties................       --         99.3(b)       --         --       99.3(b)       --        --       1.4       1.1
  Restructuring charges.......      7.0(c)      38.6(c)      7.0(c)       --      38.6(c)       --        --        --        --
  Income (loss) from
    operations................       --       (113.0)         --       12.0     (113.0)       57.5      64.4      69.4      45.5
  Interest expense(d).........      9.1         40.7        10.3       13.7       57.1        30.5
  Net income (loss)...........     (1.8)       (73.9)       (2.5)      (0.4)     (77.1)       (1.4)     18.5      17.0      49.8
  Earnings (Loss) to Common
    Stock.....................     (5.2)       (87.3)       (4.3)      (2.2)     (84.1)       (5.7)     18.5      17.0      49.8
  Earnings (loss) per share of
    Common Stock.............. $  (0.06)    $  (0.97)   $  (0.05)  $  (0.02)  $  (0.94)   $  (0.07)  $  0.29   $  0.28        --
CASH FLOW DATA:
  Net cash provided by
    operating activities...... $    4.6     $  154.3    $   14.3   $   41.6   $  160.2    $  141.5   $ 128.4   $ 144.1   $ 173.1
  Capital expenditures........     30.5        127.0        30.5       30.0      127.0        76.8     108.1     117.0      93.7
  Preferred dividends.........      3.4         13.4         1.8        1.8        7.0         2.6        --        --        --
  Common stock dividends(e)...       --         14.3          --        3.5       14.3        12.3      10.2       5.1        --

BALANCE SHEET DATA (AT END OF
  PERIOD):
  Properties and equipment,
    net....................... $  818.2     $  832.7    $  818.2   $1,076.5   $  832.7    $1,101.8   $ 797.4   $ 745.0   $ 747.6
  Total assets................  1,044.5      1,079.0     1,042.2    1,278.9    1,076.9     1,337.2     911.9     911.1     881.8
  Long-term debt..............    362.7        365.9       403.5      459.0      405.4       492.8     440.8     417.2     124.7
  Convertible Preferred Stock,
    Series 7%.................     80.0         80.0        80.0       80.0       80.0        80.0        --        --        --
  Shareholders' equity........    411.9        414.8       320.7      412.8      323.6       416.6     225.1     215.8     228.1
OTHER DATA:
  EBITDA (in millions)(f)..... $   24.4     $  174.9    $   24.4   $   51.7   $  174.9    $  183.6   $ 173.3   $ 186.1   $ 153.8
  EBITDA/Interest expense.....      2.7x         4.3x        2.4x       3.8x       3.8x        3.3x      3.7x      3.3x      5.0x
  EBITDA/Preferred dividends
    and
    interest expense..........      2.0x         3.2x        2.0x       3.3x       3.3x        3.1x      3.7x      3.3x      5.0x
  Ratio of earnings to
    combined fixed charges and
    preferred dividends(g)....       (h)          (h)         (h)        (h)        (h)         (h)      1.5x      1.3x      2.2x
</TABLE>
    
 
   
                                                   (See notes on following page)
    
 
                                        8
<PAGE>   123
 
- ---------------
 
(a) Pro forma for the consummation of this Offering and the Concurrent Debenture
     Offering and the application of the net proceeds therefrom as described
     under "Use of Proceeds." Assumes 10,700,000 DECS are sold at a price of
    $8 7/8 per share.
 
(b) Reflects a non-cash charge of $99.3 million for the impairment of oil and
     gas properties recorded as of December 31, 1993. See "Management's
     Discussion and Analysis of Financial Condition and Results of Operations"
     and Note 1 of the Notes to the Company's Consolidated Financial Statements
     included elsewhere in this Prospectus.
 
   
(c) Reflects non-cash, non-recurring charges relating to implementation of the
     Company's restructuring program of (a) $38.6 million recorded in 1993,
     comprised of (i) losses on property dispositions of $27.8 million; (ii)
     long-term debt prepayment penalties of $8.6 million; and (iii) accruals for
     certain personnel benefits and related costs of $2.2 million and (b) $7.0
     million recorded in the first quarter of 1994 comprised of severance,
     benefits and relocation expenses. See "Management's Discussion and Analysis
     of Financial Condition and Results of Operations" and Note 2 of the Notes
     to the Company's Consolidated Financial Statements included elsewhere in
     this Prospectus.
    
 
   
(d) Includes capitalized interest of $4.3 million, $4.9 million, $7.7 million,
     $10.6 million and $13.8 million for the years 1993, 1992, 1991, 1990 and
     1989, respectively, and $0.9 million and $1.1 million for the three months
     ended March 31, 1994 and 1993, respectively.
    
 
(e) Represents dividends paid subsequent to the Company's initial public
     offering in March 1990. Prior to such time, the Company was a wholly owned
     subsidiary of the Santa Fe Pacific Corporation, and dividends paid to its
     parent are not considered relevant in the context of its dividend policy
     subsequent to the initial public offering. As part of the Company's 1993
     restructuring program, in October 1993, the Company eliminated its $0.04
     per share quarterly dividend on Common Stock. See "Management's Discussion
     and Analysis of Financial Condition and Results of Operations."
 
   
(f) EBITDA is presented because it is a widely accepted financial indication of
     a company's ability to service and incur debt and preferred stock
     dividends. EBITDA is defined as income before taxes, interest expense
     (including capitalized interest but excluding long-term debt prepayment
     penalties), depletion, depreciation, amortization and other non-cash
     charges. EBITDA should not be considered by an investor as an alternative
     to earnings (loss) as an indicator of the Company's operating performance
     or to cash flows as a measure of liquidity. EBITDA for the Company largely
     results from sales of oil and gas produced from the Company's properties,
     which production, if not replaced, will result in depletion of the
     Company's assets and a reduction of the Company's ability to service and
     incur debt at constant or reducing prices. The calculation of EBITDA for
     1993 reflects an average sales price (unhedged) by the Company of $12.93
     per barrel of oil. For the three months ended March 31, 1994, the average
     sales price (unhedged) for the Company's 1994 oil production was $10.00 per
     barrel. If such lower oil prices prevail throughout 1994, the Company's
     EBITDA for 1994 will be significantly lower than that for 1993.
    
 
(g) For the purpose of calculating such ratios, (i) earnings consist of income
     (loss) before income taxes plus fixed charges and (ii) fixed charges
     consist of interest expense (including amortization of deferred debt
     issuance costs) and the amount of pre-tax earnings required to cover
     preferred stock dividend requirements.
 
   
(h) Earnings for the three months ended March 31, 1994 and 1993 and the years
     ended December 31, 1993 and 1992 were insufficient to cover combined fixed
     charges and preferred dividends by $12.2 million, $3.7 million, $166.0
     million and $12.8 million, respectively. Pro forma earnings for the three
     months ended March 31, 1994 and the year ended December 31, 1993, after
     giving effect to the consummation of this Offering and the Concurrent DECS
     Offering and the application of the estimated net proceeds therefrom as
     described in "Use of Proceeds," would have been insufficient to cover fixed
     charges by $13.6 million and $171.4 million, respectively.
    
 
                                        9
<PAGE>   124
 
                             SUMMARY OPERATING DATA
 
   
<TABLE>
<CAPTION>
                                         THREE MONTHS
                                       ENDED MARCH 31,                    YEAR ENDED DECEMBER 31,
                                      ------------------    ----------------------------------------------------
                                       1994       1993       1993       1992        1991       1990       1989
                                      -------    -------    -------    -------     -------    -------    -------
<S>                                   <C>        <C>        <C>        <C>         <C>        <C>        <C>
Production of oil (MBbls per
  day)(a)............................    66.0(d)    67.3(d)    66.7(d)    62.5        55.5       52.0       50.7
Production of natural gas (MMcf per
  day)(a)............................   155.5(d)   177.8(d)   165.4(d)   126.3        95.2      102.5       81.6
Production of oil equivalent
  (MBOE per day)(a)..................    91.9(d)    96.9(d)    94.3(d)    83.6        71.4       69.1       64.3
Average sales price:
    Oil (per Bbl).................... $ 10.00    $ 13.73    $ 12.93    $ 14.54     $ 14.09    $ 17.90    $ 14.11
    Natural gas (per Mcf)............ $  2.10    $  1.96    $  2.03    $  1.71     $  1.49    $  1.57    $  1.72
Production costs (including related
  production, severance and ad
  valorem taxes) per BOE............. $  5.59    $  5.53    $  5.39    $  5.66     $  6.06    $  6.22    $  5.69
Five-year average finding cost per
  BOE(b).............................                       $  4.80    $  4.05     $  3.66    $  3.73    $  4.31
Annual reserve replacement
  ratio(c)...........................                           121%       262%        127%       108%       251%
Estimated reserve life(in years).....                           8.5(d)     9.9         9.9       10.0       10.7
</TABLE>
    
 
- ---------------
 
(a) Includes production attributable to certain net profits interests sold by
     the Company to unaffiliated persons, which interests burden the Company's
     working or royalty interests held in certain properties.
 
(b) Reflects the average finding cost per BOE during the five years ended
     December 31 as of the year reflected in the column.
 
(c) The annual reserve replacement ratio is a fraction, of which the numerator
     is the estimated number of reserves added during a year through additions
     of estimated proved reserves from exploratory and development drilling,
     acquisitions of proved properties and revisions of previous estimates,
     excluding property sales, and of which the denominator is the oil and
     natural gas produced during that year.
 
   
(d) Includes production attributable to the properties sold to Vintage
     Petroleum, Inc. ("Vintage") (closed in November 1993) and Bridge Oil
     (U.S.A.) Inc. ("Bridge") (closed in April 1994). Production attributable to
     such properties during the year ended December 31, 1993 totaled
     approximately 4.1 MBbls of oil and 21.7 MMcf of natural gas per day (7.7
     MBOE per day). Production during the three months ended March 31, 1993
     attributable to the properties sold to Vintage totaled approximately 3.2
     MBbls of oil per day and approximately 7.0 MMcf of natural gas per day (4.4
     MBOE per day). Production during the three months ended March 31, 1993 and
     1994 attributable to the properties sold to Bridge totaled approximately
     1.4 MBbls of oil per day and approximately 14.6 MMcf of natural gas per day
     (3.8 MBOE per day), and approximately 1.3 MBbls of oil per day and
     approximately 13.5 MMcf of natural gas per day (3.6 MBOE per day),
     respectively.
    
 
                                       10
<PAGE>   125
 
   
                    SUMMARY OIL AND GAS RESERVE INFORMATION
    
 
     The following table sets forth summary information with respect to the
Company's proved oil and gas reserves as of the dates indicated. For additional
information relating to reserves, see "Business and Properties--Reserves."
 
<TABLE>
<CAPTION>
                                                   NET PROVED RESERVES AS OF DECEMBER 31,(A)
                                          ------------------------------------------------------------
                                           1993(B)        1992        1991         1990         1989
                                          ----------     -------     -------     --------     --------
<S>                                          <C>          <C>         <C>        <C>          <C>
Crude oil, condensate and natural gas
  liquids (MMBbls)....................        248.2        255.1       229.2        222.3        219.8
Natural gas (Bcf).....................        263.0        277.5       170.8        185.9        188.0
Proved reserves (MMBOE)...............        292.0        301.5       257.7        253.3        251.1
Proved developed reserves (MMBOE).....        225.5        248.4       210.3        205.0        204.0
Present value pre-tax future net cash
  flows (in millions)(c)..............       $567.8       $915.2      $602.6     $1,231.4     $1,090.1
</TABLE>
 
- ---------------
 
(a)  Includes estimated proved reserves attributable to certain net profits
     interests sold by the Company to unaffiliated persons, which interests
     burden the Company's working or royalty interests held in certain
     properties.
 
(b)  The estimates set forth in this table for 1993 give effect to the sale by
     the Company of approximately 8.0 MMBOE of proved reserves to Bridge, which
     sale closed in April 1994.
 
   
(c)  Represents the present value (discounted at 10%) of the future net cash
     flows estimated to result from production of the Company's estimated proved
     reserves using estimated sales prices and estimates of production costs, ad
     valorem and production taxes and future development costs necessary to
     produce such reserves. The sales prices used in the determination of proved
     reserves and of estimated future net cash flows are based on the prices in
     effect at year end, and for 1993 averaged $9.27 per barrel for oil and
     $2.17 per Mcf for natural gas. The average sales prices (unhedged) realized
     by the Company for its production during 1993 was $12.93 per barrel for oil
     and $2.03 per Mcf for natural gas. The average sales prices (unhedged)
     realized by the Company for its production during the three months ended
     March 31, 1994 were $10.00 per barrel of oil and $2.10 per Mcf of natural
     gas.
    
 
                                       11
<PAGE>   126
 
                           INVESTMENT CONSIDERATIONS
 
     Before deciding to invest in the shares of DECS offered hereby, prospective
investors should carefully consider all of the information contained in this
Prospectus, and in particular the investment considerations described in the
following paragraphs.
 
   
LIMITED OPPORTUNITY FOR EQUITY APPRECIATION; RISK OF DECLINE IN EQUITY VALUE
    
 
   
     The opportunity for equity appreciation afforded by an investment in the
DECS is less substantial than the opportunity for equity appreciation afforded
by an investment in the Common Stock, in part because the Conversion Price
exceeds the initial price to public per DECS. In addition, the Company may, at
its option, redeem the DECS at any time on or after the Initial Redemption Date
and prior to the Mandatory Conversion Date, and may be expected to do so if the
Current Market Price of the Common Stock exceeds the Call Price. In such event,
holders of the DECS will receive less than one share of Common Stock for each
DECS. However, because the holders of DECS called for redemption will have the
option to surrender DECS for conversion prior to the close of business on the
redemption date, a holder that elects to convert will receive      of a share of
Common Stock for each DECS. If the Company elects to redeem the DECS, in whole
or in part, or the DECS are converted into Common Stock on the Mandatory
Conversion Date, the equity appreciation, exclusive of accrued and unpaid
dividends, realized on an investment in the DECS will, for any owner of DECS so
redeemed or converted, be limited to the excess, if any, of (i) the value of the
Common Stock received for the DECS so redeemed or converted, over (ii) the price
paid by such owner for such DECS. Because the number of shares of Common Stock
to be delivered in payment of the Call Price will be determined on the basis of
the market price of the Common Stock prior to the announcement of the call, the
value per share of the shares of Common Stock to be delivered may be more or
less than the Call Price on the date of delivery.
    
 
   
     As a result of these provisions, holders of DECS would be expected to
realize no equity appreciation if the market price of one share of Common Stock
is equal to or below the Conversion Price, and less than all of such
appreciation if the market price of one share of Common Stock is above the
Conversion Price. Holders of DECS will realize the entire decline in equity
value if the market price of the Common Stock at the time of conversion is less
than the price paid for a DECS.
    
 
   
EFFECTS OF REDEMPTION PRIOR TO MANDATORY CONVERSION
    
 
   
     At any time and from time to time on or after the Initial Redemption Date
and prior to the Mandatory Conversion Date, the Company may redeem the
outstanding DECS, in whole or in part. Upon redemption, holders of DECS will
receive a number of shares of Common Stock equal to the Call Price of the DECS
in effect on the date of redemption divided by the Current Market Price of the
Common Stock determined as of the date which is the trading day prior to the
public announcement of the call for redemption. The Company may be expected to
exercise such right at a time when the holders of DECS would receive less than
one share of Common Stock per DECS (that is, when the market price of the Common
Stock exceeds the Call Price), although the right of such holders to surrender
DECS for conversion prior to the close of business on the redemption date serves
to assure holders exercising such right that they will receive no less than
       of a share of Common Stock for each DECS. The Call Price of each DECS is
the sum of (i) $     on and after the Initial Redemption Date through June 30,
1997, $     on and after July 1, 1997 through September 30, 1997, $     on and
after October 1, 1997 through December 31, 1997, and $     on and after January
1, 1998 until the Mandatory Conversion Date, and (ii) all accrued and unpaid
dividends thereon to the date fixed for redemption (other than dividends payable
to a holder of record as of a prior date). Dividends will cease to accrue on
DECS on the date fixed for their redemption.
    
 
SUBSTANTIAL LEVERAGE
 
   
     The Company is, and after the Refinancing will continue to be, highly
leveraged. At March 31, 1994, the Company had total indebtedness of $446.4
million and shareholders' equity of $320.7 million. After
    
 
                                       12
<PAGE>   127
 
   
giving effect to the Offering, the Concurrent Debenture Offering and the
application of the estimated net proceeds therefrom as described in "Use of
Proceeds," the Company would have had, on a pro forma basis at March 31, 1994,
total indebtedness of $366.4 million and shareholders' equity of $411.9 million.
If this Offering is completed but the Concurrent Debenture Offering is not
consummated, the Company's pro forma total indebtedness and shareholders' equity
at March 31, 1994 would have been $357.3 million and $412.2 million,
respectively. The Company's high degree of leverage will have important
consequences to holders of the DECS, including the following: (i) the ability of
the Company to obtain additional financing in the future for working capital,
acquisitions, capital expenditures and other general corporate purposes may be
impaired; (ii) a substantial portion of the Company's cash flow from operations
will be required to be dedicated to the payment of the Company's interest
expense and principal repayment obligations; (iii) the Company is more highly
leveraged than many of its competitors, which may place it at a competitive
disadvantage; and (iv) the Company's degree of leverage may make it more
vulnerable to a downturn in its business or the economy generally. See
"Management's Discussion and Analysis of Financial Condition and Results of
Operations--Liquidity and Capital Resources."
    
 
EFFECTS OF CHANGING PRODUCT PRICES
 
     The Company's profitability is determined in large part by the difference
between the prices received for the oil and natural gas that it produces and the
costs of finding and producing such resources. Prices for oil and gas have been
subject to wide fluctuations, which continue to reflect imbalances in supply and
demand as well as other market conditions and the world political situation as
it affects OPEC, the Middle East (including the current embargo of Iraqi crude
oil from worldwide markets) and other producing countries. Moreover, the price
of oil and natural gas may be affected by the price and availability of
alternative sources of energy, weather conditions and the general state of the
economy. Even relatively modest changes in oil and gas prices may significantly
change the Company's revenues, results of operations, cash flows and proved
reserves. Since the Company is primarily an oil producer, a change in the price
paid for its oil production more significantly affects its results of operations
than a change in natural gas prices. For example, the Company estimates that a
change of $1.00 per barrel in its average realized oil price would have resulted
in a change of $21.6 million in its 1993 operating income and $16.2 million in
its 1993 cash flow from operating activities, based on its 1993 operating
results. The foregoing estimates do not give effect to changes in any other
factors, such as the effect of the Company's hedging program or depreciation and
depletion, that would result from a change in oil prices. In recent months, spot
oil prices have reached their lowest levels in over five years, and no assurance
can be given that oil prices will not remain at these levels for the foreseeable
future or decline further.
 
     The Company's cash flow from operating activities is a function of the
volumes of oil and gas produced from the Company's properties and the sales
prices realized therefor. Crude oil and natural gas are depleting assets.
Therefore, unless the Company replaces over the long term the oil and natural
gas produced from the Company's properties, the Company's assets will be
depleted over time and its ability to service and incur debt at constant or
declining prices will be reduced. The Company's cash flow from operations for
1993 reflects an average sales price (unhedged) for the Company's 1993 oil
production of $12.93 per barrel. For the three months ended March 31, 1994, the
average sales price (unhedged) for the Company's 1994 oil production was $10.00
per barrel. If such lower oil prices prevail throughout 1994, the Company's cash
flow from operating activities for 1994 will be significantly lower than that
for 1993.
 
EFFECTS OF HEAVY OIL PRODUCTION
 
     A substantial portion of the Company's oil production consists of heavy oil
produced from the Midway-Sunset Field. The market for such heavy crude oil
production differs substantially from the remainder of the domestic crude oil
market, due principally to the higher transportation and refining costs
associated with heavy crude. As a result, the profit margin realized from the
sale of heavy oil is generally lower than that realized from the sale of light
oil, because the costs to produce heavy oil are generally
 
                                       13
<PAGE>   128
 
higher, and the price paid for heavy crude oil is generally lower, than the
price paid for light crudes. Furthermore, there is currently an oversupply of
crude oil in the California market that has had an adverse effect on the prices
paid for crude oil in that market. See "Business and Properties--Current Markets
for Oil and Gas."
 
   
DIVIDEND RIGHTS AND RESTRICTIONS ON PAYMENT OF DIVIDENDS
    
 
   
     Holders of the DECS will be entitled to receive cumulative preferential
dividends in the amount specified on the cover page of this Prospectus when, as
and if declared by the Board of Directors of the Company out of funds legally
available therefor. Certain of the Company's credit agreements, however,
restrict the payment of dividends to the holders of the Company's capital stock,
including the DECS. For a description of the aggregate amount that the Company
could pay as a dividend on its capital stock, see "Management's Discussion and
Analysis of Financial Condition and Results of Operations--Liquidity and Capital
Resources." In addition, the terms of the Convertible Preferred Stock, Series
7%, restrict, and the terms of the DECS will restrict, any dividend payment by
the Company to holders of Common Stock unless all dividends on the Convertible
Preferred Stock, Series 7%, and the DECS for all past quarterly dividend periods
shall have been paid, or declared and a sum sufficient for the payment thereof
set apart. As discussed in "Business and Properties--Corporate Restructuring
Program," the Company has eliminated the payment of its $0.04 per share
quarterly dividend on its Common Stock. The determination of the amount of
future cash dividends, if any, to be declared and paid is in the sole discretion
of the Company's Board of Directors and will depend on dividend requirements
with respect to the Company's Convertible Preferred Stock, Series 7%, and,
assuming consummation of this Offering, the DECS, the Company's financial
condition, earnings and funds from operations, the level of its capital and
exploration expenditures, dividend restrictions in its financing agreements, its
future business prospects and other matters as the Company's Board of Directors
deems relevant. Pro forma for this Offering and the Concurrent Debenture
Offering, at March 31, 1994 the Company would have had the capacity to pay
dividends of up to $110.0 million in the aggregate on capital stock, including
its Convertible Preferred Stock, Series 7%, and the DECS. However, pursuant to
the terms of the Debentures, and upon completion of this Offering and the
Concurrent Debenture Offering, at March 31, 1994 the Company would have had the
ability to pay only up to $50.0 million on its Common Stock. The amount
permitted under the Debentures to be used to pay dividends will vary over time
depending, among other things, on the Company's earnings and any issuances of
capital stock. The Debentures will not restrict the Company from paying
preferred dividends on the Convertible Preferred Stock, Series 7%, or the DECS;
however, payment of such preferred dividends will reduce the Company's capacity
under the Debentures to pay Common Stock dividends.
    
 
POSSIBLE IMPAIRMENT OF OIL AND GAS PROPERTIES
 
     The Company follows the successful efforts method of accounting for its oil
and gas exploration and production activities. Under this method, costs (both
tangible and intangible) of productive wells and development dry holes, as well
as the costs of prospective acreage, are capitalized. The costs of drilling and
equipping exploratory wells which do not result in proved reserves are expensed
upon the determination that the well does not justify commercial development.
Other exploratory costs, including geological and geophysical costs and delay
rentals, are charged to expense as incurred.
 
     The Company periodically reviews individual proved properties to determine
if the carrying value of the field as reflected in its accounting records
exceeds the estimated undiscounted future net revenues from proved oil and gas
reserves attributable to the field. Based on this review and the continuing
evaluation of development plans, economics and other factors, if appropriate,
the Company records impairments (additional depletion and depreciation) to the
extent that the carrying value exceeds the estimated undiscounted future net
revenues. Such impairments constitute a charge to earnings which does not impact
the Company's cash flow from operating activities. However, such writedowns
impact the amount of the Company's stockholders' equity and, therefore, the
ratio of debt-to-equity. The risk that the Company will be required to write
down the carrying value of its oil and natural gas properties
 
                                       14
<PAGE>   129
 
increases when oil and natural gas prices are depressed. In 1993, the Company
recorded impairments of $99.3 million. No assurance can be given that the
Company will not experience additional impairments in the future.
 
   
GOVERNMENTAL AND ENVIRONMENTAL REGULATION
    
 
     The Company's activities are subject to various federal, state and local
laws and regulations covering the discharge of material into the environment or
otherwise relating to protection of the environment. In particular, the
Company's oil and gas exploration, development, production and EOR operations,
its activities in connection with storage and transportation of liquid
hydrocarbons and its use of facilities for treating, processing, recovering or
otherwise handling hydrocarbons and waste therefrom are subject to stringent
environmental regulation by governmental authorities. Such regulations have
increased the costs of planning, designing, drilling, installing, operating and
abandoning the Company's oil and gas wells and other facilities.
 
     The Company has expended significant resources, both financial and
managerial, to comply with environmental regulations and permitting requirements
and anticipates that it will continue to do so in the future. Although the
Company believes that its operations and facilities are in general compliance
with applicable environmental regulations, risks of substantial costs and
liabilities are inherent in oil and gas operations, and there can be no
assurance that significant costs and liabilities will not be incurred in the
future. Moreover, it is possible that other developments, such as increasingly
strict environmental laws, regulations and enforcement policies thereunder, and
claims for damages to property, employees, other persons and the environment
resulting from the Company's operations, could result in substantial costs and
liabilities in the future. See "Business and Properties--Other Business
Matters--Environmental Regulation."
 
UNCERTAINTIES IN ESTIMATES OF PROVED RESERVES
 
     Proved reserves of crude oil and natural gas are estimated quantities that
geological and engineering data demonstrate with reasonable certainty to be
economically producible under existing conditions. There are numerous
uncertainties inherent in estimating quantities of proved reserves and in
projecting future rates of production and timing of development expenditures.
All reserve estimates are to some degree speculative and various classifications
of reserves only constitute attempts to define the degree of speculation
involved. The accuracy of any reserve estimate is a function of the quality of
available data and engineering and geological interpretation and judgment and
the assumptions used regarding prices for crude oil, natural gas liquids and
natural gas. Results of drilling, testing and production and changes in crude
oil, natural gas liquids and natural gas prices after the date of the estimate
may require substantial upward or downward revisions. Although a substantial
portion of the Company's proved oil reserves is in long-lived fields with
well-established production histories where EOR and other development projects
are employed to produce such reserves, the external factors discussed above will
directly affect the Company's determination to proceed with any of such projects
and, therefore, the quantity of reserves in these fields classified as proved.
The reserve estimates included and incorporated by reference in this Prospectus
were prepared as of December 31, 1993 and could be materially different from the
quantities of crude oil, natural gas liquids and natural gas that ultimately
will be recovered from the Company's properties.
 
     In addition, actual future net cash flows from production of the Company's
reserves will be affected by factors such as actual production, supply and
demand for oil and natural gas, curtailments or increases in consumption by
natural gas purchasers, changes in governmental regulations or taxation and the
impact of inflation on costs. The timing of actual future net revenue from
proved reserves, and thus their actual present value, can be affected by the
timing of the incurrence of expenditures in connection with development of oil
and gas properties. The 10% discount factor, which is required by the Commission
to be used to calculate present value for reporting purposes, is not necessarily
the most appropriate discount factor based on interest rates in effect from time
to time and risks associated with the oil and gas industry. Discounted present
value, no matter what discount rate is used, is materially
 
                                       15
<PAGE>   130
 
affected by assumptions as to the amount and timing of future production, which
may and often do prove to be inaccurate.
 
INDUSTRY CONSIDERATIONS
 
     The Company's business is the exploration for, and the development and
production of, oil and natural gas. Exploration for oil and natural gas involves
many risks, which even a combination of experience, knowledge and careful
evaluation may not be able to overcome. In addition, there is strong competition
relating to all aspects of the oil and gas industry, and in particular in the
exploration and development of new oil and gas reserves. The Company must
compete with a substantial number of other oil and natural gas companies, many
of which have significantly greater financial resources.
 
     All of the Company's oil and gas activities are subject to the risks
normally incident to exploration for and production of oil and gas, including
blowouts, cratering, spillage and fires, each of which could result in damage to
life and property. Offshore operations are subject to usual marine perils,
including hurricanes and other adverse weather conditions, and governmental
regulations as well as interruption or termination by governmental authorities
based on environmental and other considerations. In accordance with customary
industry practices, the Company carries insurance against some, but not all, of
the risks associated with the Company's business. Losses and liabilities arising
from such events would reduce revenues and increase costs to the Company to the
extent not covered by insurance.
 
     Another risk inherent in the oil and gas industry is the risk that a well
will be a dry hole or a marginal producer that will not, in either case, repay
the entire cost of drilling, testing, completing and equipping the well. There
can be no assurance, therefore, that the Company's future exploration and
development wells will be financially successful.
 
INTERNATIONAL OPERATIONS
 
     Foreign properties, operations or investment may be adversely affected by
local political and economic developments, exchange controls, currency
fluctuations, royalty and tax increases, retroactive tax claims, expropriation,
import and export regulations and other foreign laws or policies as well as by
laws and policies of the United States affecting foreign trade, taxation and
investment. In addition, in the event of a dispute arising from foreign
operations, the Company may be subject to the exclusive jurisdiction of foreign
courts or may not be successful in subjecting foreign persons to the
jurisdiction of courts in the United States. The Company may also be hindered or
prevented from enforcing its rights with respect to a governmental
instrumentality because of the doctrine of sovereign immunity.
 
ABSENCE OF A PREVIOUS MARKET FOR THE DECS
 
     The DECS are a new issue of securities with no established trading market.
The DECS have been approved for listing on the NYSE, but no assurance can be
given as to the development or liquidity of any trading market in the DECS. If
an active market does not develop, the market price and liquidity of the DECS
may be adversely affected.
 
                                       16
<PAGE>   131
 
                      RATIOS OF EARNINGS TO FIXED CHARGES
 
     The following table sets forth the historical ratios of earnings to fixed
charges and earnings to combined fixed charges and preferred stock dividends of
the Company for the periods indicated:
 
   
<TABLE>
<CAPTION>
                                        THREE MONTHS
                                        ENDED MARCH
                                            31,                      YEAR ENDED DECEMBER 31,
                                       --------------      --------------------------------------------
                                       1994      1993      1993      1992      1991      1990      1989
                                       ----      ----      ----      ----      ----      ----      ----
<S>                                    <C>       <C>       <C>       <C>       <C>       <C>       <C>
Earnings to Fixed Charges.........     (a)       (a)       (a)       (a)       1.5 x     1.3 x     2.2 x
Earnings to Combined Fixed Charges
  and Preferred Stock Dividends...     (b)       (b)       (b)       (b)       1.5 x     1.3 x     2.2 x
</TABLE>
    
 
- ---------------
 
   
(a) Earnings during the three months ended March 31, 1994 and 1993 and the years
     1993 and 1992 were insufficient to cover fixed charges (excluding dividends
     on preferred stock) by $9.2 million, $0.7 million, $154.5 million and $5.8
     million, respectively.
    
 
   
(b) Earnings during the three months ended March 31, 1994 and 1993 and the years
     1993 and 1992 were insufficient to cover combined fixed charges and
     preferred stock dividends by $12.2 million, $3.7 million, $166.0 million
     and $12.8 million, respectively.
    
 
                                USE OF PROCEEDS
 
   
     The net proceeds to the Company from the sale of the DECS offered hereby
are estimated to be approximately $91.6 million. Such net proceeds will be used
(i) to repay the floating rate debt borrowed under the Company's Amended and
Restated Revolving Credit Agreement ("Bank Facility"), the balance of which was
$30.0 million at May 11, 1994 and which currently bears interest at 5.5% per
year; (ii) to repay approximately $30.0 million principal amount of debt
previously incurred by Santa Fe Energy Operating Partners, L.P. (the "Operating
Partnership") (plus a prepayment penalty equal to approximately $2.5 million),
with a current interest rate of 8.3% per year, $6.0 million of which matures in
1994 and $8.0 million of which is scheduled to mature during each of the
succeeding three years; (iii) to repay approximately $12.3 million principal
amount of debt of Mission Resources, Inc. assumed by the Company in connection
with a property acquisition, with a current interest rate of 9.0% and a
scheduled maturity in 1995; and (iv) the balance, if any, will be used for
working capital purposes. If the Concurrent Debenture Offering is consummated,
the net proceeds (estimated to be approximately $97.0 million) from that
offering will be used (i) to prepay $65.0 million principal amount of the
Company's Senior Notes with scheduled maturities in 1995 (Series C, $30.0
million) and 1996 (Series D, $35.0 million), together with prepayment penalties
aggregating approximately $6.1 million; (ii) to repay any additional debt under
the Bank Facility; and (iii) the balance, if any, will be used for working
capital purposes. The Senior Notes (Series C) bear interest at 10.04% per year
and the Senior Notes (Series D) bear interest at 10.14% per year.
    
 
     After the application of the net proceeds from this Offering and the
Concurrent Debenture Offering, the Company will have approximately $245.0
million principal amount of Senior Notes outstanding, none of which matures
before 1996.
 
                                       17
<PAGE>   132
 
                                 CAPITALIZATION
 
   
     The following table sets forth the Company's consolidated capitalization at
March 31, 1994 on an historical basis and as adjusted as indicated below. See
"Use of Proceeds."
    
 
   
<TABLE>
<CAPTION>
                                                                    MARCH 31, 1994
                                                     ---------------------------------------------
                                                                             AS ADJUSTED
                                                                   -------------------------------
                                                                                       DECS AND
                                                      ACTUAL       DECS ONLY(A)      DEBENTURES(B)
                                                     --------      ------------      -------------
                                                                   (IN MILLIONS)
<S>                                                  <C>           <C>               <C>
SHORT-TERM DEBT:
  Current portion of long-term debt.............     $   42.9        $   33.7          $     3.7
                                                     --------      ------------      -------------
                                                     --------      ------------      -------------
LONG-TERM DEBT:
  Senior notes..................................        280.0           280.0              245.0
  Revolving and term credit agreement...........         79.0            32.2                6.3
  Notes payable to bank.........................         11.4            11.4               11.4
  Term loan.....................................         11.1              --                 --
  Partnership credit agreement..................         22.0              --                 --
  Senior subordinated debentures................           --              --              100.0
                                                     --------      ------------      -------------
     Total long-term debt.......................        403.5           323.6              362.7
                                                     --------      ------------      -------------
CONVERTIBLE PREFERRED STOCK, SERIES 7%:.........         80.0            80.0               80.0
                                                     --------      ------------      -------------
SHAREHOLDERS' EQUITY:
  DECS..........................................           --            91.6               91.6
  Common stock..................................          0.9             0.9                0.9
  Paid-in capital...............................        498.3           498.3              498.3
  Accumulated deficit...........................       (178.1)         (178.2)            (178.5)
  Other.........................................         (0.4)           (0.4)              (0.4)
                                                     --------      ------------      -------------
     Total shareholders' equity.................        320.7           412.2              411.9
                                                     --------      ------------      -------------
       Total capitalization.....................     $  804.2        $  815.8          $   854.6
                                                     --------      ------------      -------------
                                                     --------      ------------      -------------
</TABLE>
    
 
- ---------------
 
   
(a) Pro forma for the issuance of the DECS only. Assumes 10,700,000 DECS are
    sold at a price of $8 7/8 per share. Net proceeds from the Offering will be
    applied to prepay approximately $46.8 million of floating rate debt
    borrowed under the Bank Facility, approximately $30.0 million of debt
    incurred by the Operating Partnership and approximately $12.3 million of
    debt assumed by the Company in connection with a property acquisition, in
    each case on a pro forma basis at March 31, 1994.
    
 
(b) Pro forma for the issuance of both the DECS and the Debentures and the
    application of the net proceeds therefrom (estimated to be $188.6 million)
    as described in "Use of Proceeds." Assumes 10,700,000 DECS are sold at a
    price of $8 7/8 per share.
 
                                       18
<PAGE>   133
 
                   PRICE RANGE OF COMMON STOCK AND DIVIDENDS
 
     The Company's Common Stock is listed on the NYSE and trades under the
symbol SFR. The following table sets forth information as to the high and low
closing prices per share of the Common Stock as reported by the NYSE and cash
dividends paid per share for each calendar quarter in 1992 and 1993 and the
first quarter and second quarter of 1994.
 
   
<TABLE>
<CAPTION>
                                                                                          CASH
                                                                   LOW        HIGH      DIVIDENDS
                                                                   ----      ------     ---------
<S>                                                                <C>       <C>        <C>
1992
  1st Quarter.................................................     $ 7       $ 9 3/8    $  0.04
  2nd Quarter.................................................       7 7/8     9 3/4       0.04
  3rd Quarter.................................................       7 7/8     9 7/8       0.04
  4th Quarter.................................................       7 3/4     9 7/8       0.04
1993
  1st Quarter.................................................     $ 7 3/4   $11        $  0.04
  2nd Quarter.................................................       9 5/8    11 1/8       0.04
  3rd Quarter.................................................       9 1/8    10 5/8       0.04
  4th Quarter.................................................       8 3/8    10 7/8         (a)
1994
  1st Quarter.................................................     $ 8 1/2   $ 9 7/8         (a)
  2nd Quarter (through May 11)(b).............................     $ 7 5/8   $ 9 1/8         (a)
</TABLE>
    
 
- ---------------
 
(a) As discussed in "Business and Properties--Corporate Restructuring Program,"
    the Company has eliminated the payment of its $0.04 per share quarterly
    dividend on its Common Stock. The determination of the amount of future
    cash dividends, if any, to be declared and paid is in the sole discretion
    of the Company's Board of Directors and will depend on dividend
    requirements with respect to the Company's Convertible Preferred Stock,
    Series 7%, and, assuming consummation of this Offering, the DECS, the
    Company's financial condition, earnings and funds from operations, the
    level of its capital and exploration expenditures, dividend restrictions in
    its financing agreements, its future business prospects and other matters
    as the Company's Board of Directors deems relevant. For a discussion of
    certain restrictions on the Company's ability to pay dividends, see
    "Description of Capital Stock--Common Stock."
 
(b) See the cover page of this Prospectus for a recent closing price of the
    Common Stock on the NYSE.
 
    At March 14, 1994, there were 89,936,650 shares of Common Stock issued and
outstanding held by approximately 57,755 shareholders of record.
 
                                       19
<PAGE>   134
 
                     SELECTED FINANCIAL AND OPERATING DATA
 
   
     The following data for the years ended December 31, 1989, 1990, 1991, 1992
and 1993 has been derived from the Company's consolidated financial statements
audited by Price Waterhouse, independent accountants. This selected historical
financial data should be read in conjunction with the consolidated financial
statements of the Company, including the notes thereto. The Company's
consolidated balance sheets at December 31, 1992 and 1993 and the related
consolidated statements of operations, of cash flows and of shareholders' equity
for the three years ended December 31, 1993 are included elsewhere in this
Prospectus. The data for the three months ended March 31, 1993 and 1994 has been
derived from the unaudited financial statements also appearing herein and which,
in the opinion of management, include all adjustments, consisting only of normal
recurring adjustments, necessary for a fair statement of the results for the
unaudited interim periods.
    
 
   
<TABLE>
<CAPTION>
                                                        THREE MONTHS
                                                      ENDED MARCH 31,                      YEAR ENDED DECEMBER 31,
                                                    --------------------    -----------------------------------------------------
                                                      1994        1993        1993      1992(A)      1991       1990       1989
                                                    --------    --------    --------    --------    -------    -------    -------
 <S>                                                <C>         <C>         <C>         <C>         <C>        <C>        <C>
                                                                           (IN MILLIONS, EXCEPT AS NOTED)
 INCOME STATEMENT DATA:
   Revenues......................................   $   90.3    $  115.3    $  436.9    $  427.5    $ 379.8    $ 382.9    $ 322.9
                                                    --------    --------    --------    --------    -------    -------    -------
   Operating expenses
     Production and operating....................       40.6        42.7       163.8       153.4      134.6      135.5      107.1
     Oil and gas system and pipelines............         --         1.1         4.2         3.2         --         --         --
     Exploration, including dry hole costs.......        5.0         7.1        31.0        25.5       18.7       21.0       19.4
     Depletion, depreciation and amortization....       32.1        37.6       152.7       146.3      106.6      105.2       99.4
     Impairment of oil and gas properties(b).....         --          --        99.3          --         --        1.4        1.1
     General and administrative..................        7.6         7.0        32.3        30.9       27.8       25.6       28.6
     Taxes (other than income)...................        7.4         7.1        27.3        24.3       27.2       22.0       22.3
     Restructuring charges (c)...................        7.0          --        38.6          --         --         --         --
     Loss (gain) on disposition of oil and gas
       properties................................       (9.4)        0.7         0.7       (13.6)       0.5        2.8       (0.5)
                                                    --------    --------    --------    --------    -------    -------    -------
   Total operating expenses......................       90.3       103.3       549.9       370.0      315.4      313.5      277.4
                                                    --------    --------    --------    --------    -------    -------    -------
   Operating income (loss).......................         --        12.0      (113.0)       57.5       64.4       69.4       45.5
   Other income (expense)........................        0.9        (0.2)       (4.8)      (10.0)       5.6       (0.3)      18.2
   Interest income...............................        0.2         1.2         9.1         2.3        2.3        5.2        4.3
   Interest expense..............................      (10.3)      (13.7)      (45.8)      (55.6)     (47.3)     (57.1)     (30.5)
   Interest capitalized..........................        0.9         1.1         4.3         4.9        7.7       10.6       13.8
                                                    --------    --------    --------    --------    -------    -------    -------
   Income (loss) before income taxes and
     cumulative effect of accounting charge......       (8.3)        0.4      (150.2)       (0.9)      32.7       27.8       51.3
   Income taxes benefit (expense)................        5.8        (0.8)       73.1        (0.5)     (14.2)     (10.8)     (26.0)
                                                    --------    --------    --------    --------    -------    -------    -------
   Income (loss) before cumulative effect of
     accounting change...........................       (2.5)       (0.4)      (77.1)       (1.4)      18.5       17.0       25.3
   Cumulative effect of accounting change........         --          --          --          --         --         --       24.5
                                                    --------    --------    --------    --------    -------    -------    -------
   Net income (loss).............................       (2.5)       (0.4)      (77.1)       (1.4)      18.5       17.0       49.8
   Preferred dividend requirement................       (1.8)       (1.8)       (7.0)       (4.3)        --         --         --
                                                    --------    --------    --------    --------    -------    -------    -------
   Earnings (loss) attributable to Common
     Stock.......................................   $   (4.3)   $   (2.2)   $  (84.1)   $   (5.7)   $  18.5    $  17.0    $  49.8
                                                    --------    --------    --------    --------    -------    -------    -------
                                                    --------    --------    --------    --------    -------    -------    -------
   Per share data (in dollars):
     Income (loss) before cumulative effect of
       accounting change.........................   $  (0.05)   $   (0.2)   $  (0.94)   $  (0.07)   $  0.29    $  0.28    $  0.48
     Cumulative effect of change in accounting
       for income taxes..........................         --          --          --          --         --         --       0.47
     Earnings (loss) to Common Stock.............      (0.05)      (0.02)      (0.94)      (0.07)      0.29       0.28       0.95
   Weighted average number of shares
     outstanding.................................       89.9        89.6        89.7        79.0       63.8       61.7       52.1
 STATEMENT OF CASH FLOW DATA:
   Net cash provided by operating activities.....   $   14.3    $   41.6    $  160.2    $  141.5    $ 128.4    $ 144.1    $ 173.1
   Net cash used in investing activities.........       10.8        27.8       121.4        15.9      117.2      108.2       86.8
</TABLE>
    
 
                                             (Table continued on following page)
 
                                       20
<PAGE>   135
 
<TABLE>
<CAPTION>
                                                        THREE MONTHS
                                                      ENDED MARCH 31,                      YEAR ENDED DECEMBER 31,
                                                    --------------------    -----------------------------------------------------
                                                      1994        1993        1993      1992(A)      1991       1990       1989
                                                    --------    --------    --------    --------    -------    -------    -------
                                                                           (IN MILLIONS, EXCEPT AS NOTED)
   
 <S>                                                <C>         <C>         <C>         <C>         <C>        <C>        <C>
 BALANCE SHEET DATA (AT PERIOD END):
   Properties and equipment, net.................   $  818.2    $1,076.5    $  832.7    $1,101.8    $ 797.4    $ 745.0    $ 747.6
   Total assets..................................    1,042.2     1,278.9     1,076.9     1,337.2      911.9      911.1      881.8
   Long-term debt................................      403.5       459.0       405.4       492.8      440.8      417.2      124.7
   Convertible Preferred Stock, Series 7%........       80.0        80.0        80.0        80.0         --         --         --
   Shareholders' equity..........................      320.7       412.8       323.6       416.6      225.1      215.8      228.1
 SELECTED OPERATING DATA:
   Daily average production(d):
     Crude oil and liquids (MBbls/day)
       Domestic..................................       58.0        61.0        60.2        58.3       54.9       52.0       50.7
       Argentina.................................        2.5         2.0         2.4         2.4        0.6         --         --
       Indonesia.................................        5.5         4.3         4.1         1.8         --         --         --
                                                    --------    --------    --------    --------    -------    -------    -------
                                                        66.0        67.3        66.7        62.5       55.5       52.0       50.7
                                                    --------    --------    --------    --------    -------    -------    -------
                                                    --------    --------    --------    --------    -------    -------    -------
     Natural gas (MMcf/day)......................      155.5       177.8       165.4       126.3       95.2      102.5       81.6
     Total production (MMBOE)....................       91.9        96.9        94.3        83.6       71.4       69.1       64.3
   Average sales prices:
     Crude oil and liquids ($/Bbl)
       Unhedged
         Domestic................................   $   9.64    $  13.49    $  12.70    $  14.38    $ 14.07    $ 17.90    $ 14.11
         Argentina...............................      10.27       15.45       14.07       15.99      16.24         --         --
         Indonesia...............................      13.74       16.25       15.50       17.51         --         --         --
         Total...................................      10.00       13.73       12.93       14.54      14.09      17.90      14.11
       Hedged....................................      10.00       13.73       12.93       14.96      16.16      17.34      14.11
     Natural Gas ($/Mcf)
       Unhedged..................................   $   2.10    $   1.96    $   2.03    $   1.71    $  1.49    $  1.57    $  1.72
       Hedged....................................       2.07        1.91        1.89        1.70       1.49       1.57       1.72
   Proved reserves at year end(e):
     Crude oil, condensate and natural gas
       liquids (MMBbls)..........................                              248.2       255.1      229.2      222.3      219.8
     Natural gas (Bcf)...........................                              263.0       277.5      170.8      185.9      188.0
     Proved reserves (MMBOE).....................                              292.0       301.5      257.7      253.3      251.1
     Proved developed reserves (MMBOE)...........                              225.5       248.4      210.3      205.0      204.0
   Production costs (included related production,
     severance and ad valorem taxes) per BOE (in
     dollars)....................................   $   5.59    $   5.53    $   5.39    $   5.66    $  6.06    $  6.22    $  5.69
</TABLE>
    
 
- ---------------
 
(a) On May 19, 1992, Adobe was merged with and into the Company.
 
(b) Reflects a non-cash charge of $99.3 million for the impairment of oil and
     gas properties recorded as of December 31, 1993. See "Management's
     Discussion and Analysis of Financial Condition and Results of Operations"
     and Note 1 of the Notes to the Company's Consolidated Financial Statements
     included elsewhere in this Prospectus.
 
   
(c) Includes losses on property dispositions of $27.8 million, long-term debt
     repayment penalties of $8.6 million and accruals of certain personnel
     benefits and related costs of $2.2 million in 1993 and $7.0 million of
     severance, benefits and relocation costs in 1994.
    
 
   
(d) Includes production attributable to the properties sold to Vintage (closed
     in November 1993) and Bridge (closed in April 1994). Production
     attributable to such properties during the year ended December 31, 1993
     totaled approximately 4.1 MBbls of oil per day and 21.7 MMcf of natural gas
     per day (7.7 MBOE per day). Production during the three months ended March
     31, 1993 attributable to the properties sold to Vintage totaled
     approximately 3.2 MBbls of oil per day and approximately 7.0 MMcf of
     natural gas per day (4.4 MBOE per day). Production during the three months
     ended March 31, 1993 and 1994 attributable to the properties sold to Bridge
     totaled approximately 1.4 MBbls of oil per day and approximately 14.6 MMcf
     of natural gas per day (3.8 MBOE per day), and approximately 1.3 MBbls of
     oil per day and approximately 13.5 MMcf of natural gas per day (3.6 MBOE
     per day), respectively.
    
 
(e) The estimates set forth in this table for 1993 give effect to the sale by
     the Company of approximately 8.0 MMBOE of proved reserves to Bridge, which
     sale closed in April 1994.
 
                                       21
<PAGE>   136
 
                    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
GENERAL
 
     As an independent oil and gas producer, the Company's results of operations
are dependent upon the difference between the prices received for oil and gas
and the costs of finding and producing such resources. A substantial portion of
the Company's crude oil production is from long-lived fields where EOR methods
are being utilized. The market price of the heavy (i.e., low gravity, high
viscosity) and sour (i.e., high sulfur content) crude oils produced in these
fields is lower than sweeter, light (i.e., low sulfur and low viscosity) crude
oils, reflecting higher transportation and refining costs. The lower price
received for the Company's domestic heavy and sour crude oil is reflected in the
average sales price of the Company's domestic crude oil and liquids (excluding
the effect of hedging transactions) for 1993 of $12.70 per barrel, compared to
$16.94 per barrel for West Texas Intermediate ("WTI") crude oil (an industry
posted price generally indicative of spot prices for sweeter light crude oil).
In addition, the lifting costs of heavy crude oils are generally higher than the
lifting costs of light crude oils. As a result of these narrower margins, even
relatively modest changes in crude oil prices may significantly affect the
Company's revenues, results of operations, cash flows and proved reserves. In
addition, prolonged periods of high or low oil prices may have a material effect
on the Company's financial position.
 
     Crude oil prices are subject to significant changes in response to
fluctuations in the domestic and world supply and demand and other market
conditions as well as the world political situation as it affects OPEC, the
Middle East and other producing countries. See "Business and Properties--Current
Markets for Oil and Gas." The period since mid-1990 has included some of the
largest fluctuations in oil prices in recent times, primarily due to the
political unrest in the Middle East. The actual average sales price (unhedged)
received by the Company ranged from a high of $23.92 per barrel in the fourth
quarter of 1990 to a low of $10.00 per barrel during the three months ended
March 31, 1994. The Company's average sales price for its 1993 oil production
was $12.93 per barrel. Based on operating results of 1993, the Company estimates
that a $1.00 per barrel increase or decrease in average oil sales prices would
have resulted in a corresponding $21.6 million change in 1993 income from
operations and a $16.2 million change in 1993 cash flow from operating
activities. The Company also estimates that a $0.10 per Mcf increase or decrease
in average natural gas sales prices would have resulted in a corresponding $5.8
million change in 1993 income from operations and a $4.4 million change in 1993
cash flow from operating activities. The foregoing estimates do not give effect
to changes in any other factors, such as the effect of the Company's hedging
program or depreciation and depletion, that would result from a change in oil
and natural gas prices.
 
   
     During 1992 and 1993, certain significant events occurred which affect the
comparability of prior periods, including the merger of Adobe with and into the
Company in May 1992, the formation of the Santa Fe Energy Trust (the "Trust") in
November 1992 and implementation of the corporate restructuring program adopted
in October 1993. The corporate restructuring program includes (i) the
concentration of capital spending in the Company's core operating areas, (ii)
the disposition of non-core assets, (iii) the elimination of the $0.04 per share
quarterly Common Stock dividend and (iv) the recognition of $38.6 million of
restructuring charges. See Note 2 of the Notes to the Company's Consolidated
Financial Statements included elsewhere in this Prospectus and "Business and
Properties--Corporate Restructuring Program." In addition, the Company's results
of operations for 1993 include a charge of $99.3 million for the impairment of
oil and gas properties.
    
 
     The Company's capital program will be concentrated in three domestic core
areas--the Permian Basin in Texas and New Mexico, the offshore Gulf of Mexico
and the San Joaquin Valley of California--as well as its productive areas in
Argentina and Indonesia. The domestic program includes development activities in
the Delaware and Cisco-Canyon formations in west Texas and southeast New Mexico,
a development drilling program for the offshore Gulf of Mexico natural gas
properties and relatively low risk infill drilling in the San Joaquin Valley of
California. Internationally, the program includes development of the Company's
Sierra Chata discovery in Argentina with gas sales expected to commence in early
1995
 
                                       22
<PAGE>   137
 
and the Salawati Basin Joint Venture in Indonesia. See "Business and
Properties--Domestic Development Activities" and "--International Development
Activities."
 
     The Company's non-core asset disposition program includes the sale of its
natural gas gathering and processing assets to Hadson Corporation ("Hadson")
(completed in December 1993), the sale to Vintage of certain southern California
and Gulf Coast oil and gas producing properties (completed in November 1993) and
the sale to Bridge of certain Mid-Continent and Rocky Mountain oil and gas
producing properties and undeveloped acreage (completed in April 1994). See
"Business and Properties--Corporate Restructuring Program" for a description of
the transactions with Hadson, Vintage and Bridge. In the first quarter of 1994,
the Company sold the remaining 575,000 Depositary Units which it held in the
Trust for $11.3 million and its interest in certain other oil and gas properties
for $8.3 million. As a result of the Vintage and Bridge dispositions described
above, the Company has sold properties having combined production during 1993 of
4.1 MBbls of oil per day and 21.7 MMcf of natural gas per day and estimated
proved reserves of approximately 16.7 MMBOE.
 
   
     The restructuring program also includes an evaluation of the Company's
capital and cost structures to examine ways to increase flexibility and
strengthen the Company's financial performance. Based upon the review of its
capital structure, the Company determined to proceed with the Refinancing to
accomplish its financial strategy. Based upon the review of its cost structure,
the Company has implemented a cost reduction program that includes the reduction
of its salaried work force by approximately 20%, an improvement in the
efficiency of its information systems and reductions in other general and
administrative costs. These measures, together with the Company's on-going
efforts to reduce production costs and the recent sales of its higher cost,
non-core properties, are designed to reduce costs and expenses by approximately
$30.0 million from the 1993 level (which reduction includes approximately $5.0
million of non-recurring costs). Approximately $10.0 million of the estimated
cost reduction is expected to be in production and operating costs.
Substantially all of this cost reduction program is expected to be implemented
by year end 1994. During the quarter ended March 31, 1994, the Company recorded
$7.0 million in restructuring charges reflecting the estimated costs of such
cost reduction program. See "--Liquidity and Capital Resources."
    
 
     In May 1992, Adobe, an oil and gas exploration and production company, was
merged with and into the Company (the "Adobe Merger"). The acquisition was
accounted for as a purchase and the results of operations of the properties
acquired (the "Adobe Properties") are included in the Company's results of
operations effective June 1, 1992. Pursuant to the Adobe Merger, the Company
issued 25,020,117 shares of Common Stock and 5,000,000 shares of its Convertible
Preferred Stock, Series 7%, and assumed approximately $175.0 million of
long-term debt and other liabilities. Pursuant to the Adobe Merger, the Company
also acquired Adobe's proved reserves and inventory of undeveloped acreage. As
of December 31, 1991, Adobe's estimated proved reserves totaled approximately
53.2 MMBOE (net of 6.9 MMBOE attributable to Adobe's ownership in certain gas
plants), of which approximately 58% was natural gas (approximately 66% of
Adobe's estimated domestic proved reserves were natural gas). Approximately 72%
of the discounted future net cash flow of Adobe's estimated domestic proved
reserves was concentrated in three areas of operation--offshore Gulf of Mexico,
onshore Louisiana and in the Spraberry Trend in west Texas. In addition, Adobe's
international operations consisted of certain production sharing arrangements in
Indonesia, in respect of which approximately 6.0 MMBOE of estimated proved
reserves had been attributed to Adobe's interest as of December 31, 1991. The
location of the Adobe Properties enhanced the Company's existing domestic
operations and added significant operations to the Company's international
program.
 
     In November 1992, 5,725,000 Depositary Units ("Depositary Units")
consisting of interests in the Trust were sold in a public offering. After
payment of certain costs and expenses, the Company received net proceeds of
$70.1 million and 575,000 Depositary Units. For any calendar quarter ending on
or prior to December 31, 2002, the Trust will receive additional royalty
payments to the extent necessary to distribute $0.40 per Depositary Unit per
quarter. The source of such payments, if needed, will be limited to the
Company's remaining royalty interest in certain of the properties conveyed to
the Trust. The aggregate amount of such payments are limited to $20.0 million on
a revolving basis. The Company was
 
                                       23
<PAGE>   138
 
required to make an additional royalty payment of $362,000 with respect to the
distribution made by the Trust for operations during the quarter ended December
31, 1993. On April 21, 1994, the Trust announced that a distribution of $0.40
per Depositary Unit would be paid for the calendar quarter ended March 31, 1994
to Unitholders of record on May 16, 1994, which distribution will include an
additional royalty payment by the Company of $505,700. See "Business and
Properties--Santa Fe Energy Trust."
 
   
RESULTS OF OPERATIONS
    
 
   
     The following table sets forth, on the basis of the BOE produced by the
Company during the applicable period, certain of the Company's costs and
expenses for each of the periods indicated.
    
 
   
<TABLE>
<CAPTION>
                                                       THREE MONTHS
                                                      ENDED MARCH 31,        YEAR ENDED DECEMBER 31,
                                                     -----------------     ----------------------------
                                                      1994       1993       1993       1992       1991
                                                     ------     ------     ------     ------     ------
<S>                                                  <C>        <C>        <C>        <C>        <C>
  Production and operating costs per BOE (a).......  $ 4.91     $ 4.90     $ 4.76     $ 5.02     $ 5.17
  Exploration, including dry hole costs per BOE....    0.61       0.82       0.90       0.84       0.72
  Depletion, depreciation and amortization per
     BOE...........................................    3.88       4.31       4.44       4.79       4.09
  General and administrative costs per BOE.........    0.92       0.80       0.94       1.01       1.07
  Taxes other than income per BOE (b)..............    0.90       0.82       0.79       0.80       1.05
  Interest, net, per BOE (c).......................    1.11       1.31       0.94       1.58       1.43
</TABLE>
    
 
- ---------------
 
(a) Excluding related production, severance and ad valorem taxes.
 
(b) Includes production, severance and ad valorem taxes.
 
(c) Reflects interest expense less amounts capitalized and interest income.
 
   
     First Quarter 1994 Compared with First Quarter 1993
    
 
   
     Total revenues declined 22% from $115.3 million in the first quarter of
1993 to $90.3 million in the first quarter of 1994 primarily due to lower oil
prices in 1994. The average price realized per barrel of oil in 1994 was $10.00,
a 27% decrease from the $13.73 realized in 1993. Daily average oil production
decreased 1.3 MBbls per day during the first quarter of 1994 primarily
reflecting the sale to Vintage in the fourth quarter of 1993 of properties which
produced approximately 3.2 MBbls per day, partially offset by increased
production in Indonesia and Argentina. Natural gas production declined to an
average of 155.5 MMcf per day in the first quarter of 1994 compared to 177.8
MMcf per day in the first quarter of 1993. However, production for the 1993
period included a positive adjustment of approximately 16.7 MMcf per day related
to production in prior periods from certain nonoperated properties. In addition,
the 1993 volumes include approximately 7.0 MMcf per day attributable to the
properties sold to Vintage. Natural gas sales prices (hedged) for 1994 averaged
$2.07 per Mcf, approximately 8% higher than the $1.91 realized in 1993. Natural
gas revenues for 1994 and 1993 were reduced by $0.3 million ($0.03 per Mcf) and
$0.8 million ($0.05 per Mcf), respectively, by losses on hedging transactions.
    
 
   
     Total costs and expenses for the first quarter of 1994 of $90.3 million
were 13% lower than the $103.3 million reported for the first quarter of 1993.
Exploration expenses were down $2.1 million primarily reflecting lower
geological and geophysical costs with respect to foreign operations and lower
dry hole costs. Depletion, depreciation and amortization ("DD&A") decreased $5.5
million primarily reflecting the effect of property impairments taken in the
fourth quarter of 1993 and the sale of properties to Vintage. On a BOE basis,
DD&A decreased by 10% from $4.31 per barrel to $3.88 per barrel. Costs and
expenses for the first quarter of 1994 include $7.0 million in restructuring
charges (see "--Liquidity and Capital Resources") and a $9.4 million gain on the
sale of certain oil and gas properties.
    
 
   
     Interest expense for the first quarter of 1994 includes a credit of $2.4
million reflecting adjustments to provisions made in prior periods with respect
to interest on certain federal income tax audit adjustments. Other income
(expense) for the first quarter of 1994 includes $1.5 million in dividend
    
 
                                       24
<PAGE>   139
 
   
income on Hadson preferred stock (paid in-kind) and a $0.7 million loss on the
Company's equity in Hadson common stock. Income tax expense for the first
quarter of 1994 includes a $3.0 million benefit of adjustments to provisions
made in prior periods with respect to certain federal income tax audit
adjustments.
    
 
     1993 Compared with 1992
 
     Total revenues increased approximately 2% from $427.5 million in 1992 to
$436.9 million in 1993, principally due to an increase in oil and natural gas
production offset by a decline in average oil prices. Average daily oil
production increased 7% from 62.5 MBbls in 1992 to 66.7 MBbls in 1993,
principally due to increased domestic and Indonesian production. The average
price realized per barrel of oil during 1993 was $12.93, a decrease of 14%
versus the average price of $14.96 in 1992. Natural gas production increased 31%
from 126.3 MMcf per day in 1992 to 165.4 MMcf per day in 1993, primarily
reflecting the effect of a full year's production from the Adobe Properties.
Average natural gas prices realized increased approximately 11% from $1.70 per
Mcf in 1992 to $1.89 per Mcf in 1993.
 
     Production and operating costs increased $10.4 million in 1993, primarily
reflecting the effect of a full year's costs for the Adobe Properties; however,
on a BOE basis such costs declined from $5.02 per barrel in 1992 to $4.76 per
barrel in 1993. Exploration costs were $5.5 million higher than in 1992
primarily reflecting higher geological and geophysical costs and higher dry hole
costs. DD&A increased $6.4 million in 1993 primarily reflecting a full year's
expense on Adobe Properties partially offset by reduced amortization rates with
respect to certain unproved properties. DD&A for 1993 includes $12.1 million
with respect to the properties sold to Vintage and Bridge. On a BOE basis, DD&A
decreased by $0.35 per barrel, from $4.79 to $4.44 per barrel. General and
administrative costs increased $1.4 million principally due to a $1.8 million
charge related to the adoption of Statement of Financial Standards No.
112--"Employer's Accounting for Postemployment Benefits." Taxes (other than
income) increased by $3.0 million in 1993 primarily reflecting the effect of the
Adobe Properties.
 
     Costs and expenses for 1993 also include $99.3 million in impairments of
oil and gas properties and $38.6 million in restructuring charges. The Company
estimates that the impairments taken in 1993 will result in a $20.0 million
reduction in DD&A in 1994. The restructuring charges include losses on property
dispositions of $27.8 million, long-term debt repayment penalties of $8.6
million and accruals of certain personnel benefits and related costs of $2.2
million. In connection with the property dispositions effected during 1993 (see
"--Liquidity and Capital Resources"), the Company sold properties having
combined production during 1993 of 4.1 MBbls of oil per day and 21.7 MMcf of
natural gas per day and combined estimated proved reserves of approximately 16.7
MMBOE. The Company's income from operations for 1993 includes $8.5 million with
respect to such properties.
 
     Interest income in 1993 includes $6.8 million related to a $10 million
refund received as a result of the completion of the audit of the Company's
federal income tax returns for 1971 through 1980. The decrease in interest
expenses during 1993 reflects a decrease in the Company's debt outstanding and a
$5.7 million credit related to a revision to a tax sharing agreement with the
Company's former parent. Other income and expenses of 1993 includes a $4.0
million charge related to the accrual of a contingent loss with respect to the
operations of a former affiliate of Adobe.
 
     1992 Compared with 1991
 
     Total revenues increased approximately 13% from $379.8 million in 1991 to
$427.5 million in 1992 principally due to an increase of approximately $53.2
million attributable to production from properties acquired in the Adobe Merger
and an increase of approximately $10.7 million and $10.2 million in revenues
from the Company's domestic and Argentine properties, respectively, offset in
part by a decline of $32.0 million in crude oil hedging revenues. Oil production
increased 13% from 55.5 MBbls per day in 1991 to 62.5 MBbls per day in 1992,
reflecting a 3.4 MBbl per day increase in domestic oil production and a 3.6 MBbl
per day increase in production in Argentina and Indonesia. The average price
realized per barrel of oil during 1992 decreased to $14.96, a decrease of 7%
versus the average price of $16.16 in
 
                                       25
<PAGE>   140
 
1991, primarily reflecting a $32.0 million decrease in hedging revenues. Natural
gas production increased 33% from 95.2 MMcf per day in 1991 to 126.3 MMcf per
day in 1992 as a result of properties acquired in the Adobe Merger. Average
natural gas prices realized increased approximately 14% from $1.49 per Mcf in
1991 to $1.70 per Mcf in 1992.
 
     Total operating expenses of the Company increased $54.6 million from $315.4
million in 1991 to $370.0 million in 1992 primarily reflecting costs associated
with the Adobe Merger. Production and operating costs in 1992 were $18.8 million
higher than in 1991, primarily reflecting costs related to the Adobe Properties
and increased fuel costs associated with the Company's EOR projects. On a BOE
basis, production and operating costs declined from $5.17 per barrel in 1991 to
$5.02 per barrel in 1992, primarily reflecting the lower cost structure of the
Adobe Properties. Exploration costs were $6.8 million higher than in 1991
primarily reflecting higher geological and geophysical costs with respect to
foreign projects. Depletion, depreciation and amortization costs were $39.7
million higher in 1992 due to the acquisition of the Adobe Properties and, to a
lesser extent, adjustments to oil and gas reserves with respect to certain
producing properties. General and administrative costs increased $3.1 million
principally due to a $1.2 million charge related to certain stock awards which
fully vested upon consummation of the Adobe Merger and certain other
merger-related costs. Taxes (other than income) decreased by $2.9 million in
1992 as a result of lower accruals with respect to property taxes. The $13.6
million gain on the disposition of properties in 1992 primarily relates to the
sale of certain royalty interest properties, in which the Company had no
remaining financial basis.
 
     The increase in interest expense during 1992 reflects the increase in debt
as a result of the Adobe Merger. Other income and expenses for 1992 includes a
$10.9 million charge for costs incurred by Adobe in connection with the Adobe
Merger and paid by Santa Fe.
 
LIQUIDITY AND CAPITAL RESOURCES
 
   
     Historically, the Company has generally funded capital and exploration
expenditures and working capital requirements from cash provided by operating
activities. Depending upon the future levels of operating cash flows, which are
significantly affected by oil and gas prices, the restrictions on additional
borrowings included in certain of the Company's debt agreements, together with
debt service requirements and dividends, may limit the cash available for future
exploration, development and acquisition activities. Net cash provided by
operating activities totaled $14.3 million in the first quarter of 1994 and
$41.6 million in the first quarter of 1993; net cash used in investing
activities (net of proceeds from the sales of properties) in such periods
totaled $10.8 million and $27.8 million, respectively. Net cash provided by
operating activities totaled $160.2 million, $141.5 million and $128.4 million
for the years ended December 31, 1993, 1992 and 1991, respectively; net cash
used in investing activities in such periods totaled $121.4 million, $15.9
million and $117.2 million, respectively.
    
 
   
     The Company's cash flow from operating activities is a function of the
volumes of oil and gas produced from the Company's properties and the sales
prices realized therefor. Crude oil and natural gas are depleting assets.
Therefore, unless the Company replaces over the long term the oil and natural
gas produced from the Company's properties, the Company's assets will be
depleted over time and its ability to service and incur debt at constant or
declining prices will be reduced. The Company's cash flow from operations for
the first quarter of 1993 reflects an average sales price (unhedged) for the
Company's 1993 oil production of $13.73 per barrel and the Company's average
sales price for oil production for the full year 1993 (unhedged) was $12.93 per
barrel. For the three months ended March 31, 1994, the average sales price
(unhedged) for the Company's 1994 oil production was $10.00 per barrel. If such
lower oil prices prevail throughout 1994, the Company's cash flow from operating
activities for 1994 will be significantly lower than that for 1993.
    
 
     In October 1993, the Company's Board of Directors adopted a broad corporate
restructuring program that focuses on the concentration of capital spending in
core areas and the disposition of non-core assets. The Company's asset
disposition program adopted in connection with the 1993 restructuring program
has been substantially completed by the asset sales to Hadson, Vintage and
Bridge, the sale
 
                                       26
<PAGE>   141
 
   
of the 575,000 Depositary Units in the Trust and the sale of its interest in
certain other oil and gas properties. As a result of such sales, the Company
sold a total of 16.7 MMBOE of proved reserves and undeveloped acreage for a
total of approximately $109.6 million, and sold certain gas gathering and
processing facilities for Hadson securities.
    
 
   
     In conjunction with the 1993 restructuring program, the Company also
determined to undertake a review of its capital and cost structures. Based upon
such review of its capital structure, the Company determined to proceed with the
Refinancing in the belief that it will increase the Company's financial
flexibility, strengthen the Company's financial condition and permit the Company
to pursue aggressively its operating strategy. The net proceeds from the
Refinancing will be used to repay existing indebtedness of the Company. See "Use
of Proceeds." Based upon the review of its cost structure, the Company has
implemented a cost reduction program that includes the reduction of its salaried
work force by approximately 20%, an improvement in the efficiency of its
information systems and reductions in other general and administrative costs.
These measures, together with the Company's on-going efforts to reduce
production costs and the recent sales of its higher cost, non-core properties,
are designed to reduce costs and expenses by approximately $30.0 million from
the 1993 level (which reduction includes approximately $5.0 million of
non-recurring costs). Approximately $10.0 million of the estimated cost
reduction is expected to be in production and operating costs. Substantially all
of this cost reduction program is expected to be implemented by year end 1994.
During the quarter ended March 31, 1994, the Company recorded $7.0 million in
restructuring charges reflecting the estimated costs of such cost reduction
program.
    
 
   
     Under the most restrictive covenant in the Company's existing credit
agreements, as of March 31, 1994 the Company could incur up to $61.7 million of
additional indebtedness. After giving effect as of March 31, 1994 to the
consummation of this Offering and the Concurrent Debenture Offering and the
application of the net proceeds therefrom, as described in "Use of Proceeds,"
the Company would have been able to incur up to $147.3 million of additional
indebtedness under its most restrictive covenant. At March 31, 1994, under the
Company's most restrictive covenant, the Company had the ability to pay $18.4
million in dividends on its capital stock. Pro forma for this Offering and the
Concurrent Debenture Offering, the Company would have had the capacity to pay
dividends of up to $110.0 million in the aggregate on its capital stock,
including its Convertible Preferred Stock, Series 7%, and the DECS. However,
pursuant to the terms of the Debentures, upon completion of this Offering and
the Concurrent Debenture Offering, the Company would have the ability to pay
only up to $50.0 million on its Common Stock. The amount permitted under these
covenants to be used to pay dividends will vary over time depending, among other
things, on the Company's earnings and any issuances of capital stock. The
Indenture pursuant to which the Debentures will be issued does not restrict the
Company from paying preferred dividends on the Convertible Preferred Stock,
Series 7%, or the DECS; however, payment of such preferred dividends reduces the
Company's capacity under the Indenture to pay Common Stock dividends.
    
 
     As a part of the 1993 restructuring program, the Company eliminated its
$0.04 per share quarterly dividend on its Common Stock and announced that it
might spend up to $240 million in 1994 on an accelerated capital program.
However, as a result of the depressed crude oil prices that have prevailed since
November 1993, the Company, consistent with industry practice, has determined to
defer certain of its capital projects in order to prudently manage cash flow in
the near term. Based on current market conditions, the Company has authorized up
to $130 million of capital expenditures during 1994, a level which should allow
the Company to replace its estimated 1994 production, although no assurance can
be given regarding such replacement. The Company intends to continue to monitor
its capital expenditure program throughout the balance of 1994 and may, in
response to industry conditions, including, without limitation, prevailing oil
and natural gas prices and the outlook therefor, revise such program.
 
     The Company is a party to several long-term and short-term credit
agreements which restrict the Company's ability to take certain actions,
including covenants that restrict the Company's ability to incur additional
indebtedness and to pay dividends on its capital stock. For a description of
such credit
 
                                       27
<PAGE>   142
 
agreements at December 31, 1993, see Note 7 of the Notes to the Company's
Consolidated Financial Statements included elsewhere in this Prospectus.
 
   
     Effective March 16, 1994, the Company entered into the Bank Facility with a
group of banks for which Texas Commerce Bank National Association ("Texas
Commerce") and NationsBank of Texas act as co-agents. The Bank Facility consists
of a five-year secured reducing revolving credit facility maturing December 31,
1998 ("Facility A") and a three-year unsecured reducing revolving credit
facility maturing December 31, 1996 ("Facility B"). Assuming completion of this
Offering and the Concurrent Debenture Offering and the application of the net
proceeds therefrom as described in "Use of Proceeds," the initial aggregate
borrowing limits under the Bank Facility would be $175.0 million (up to $90.0
million under Facility A and up to $85.0 million under Facility B) none of which
would be outstanding. Interest rates under the Bank Facility are tied to LIBOR
or Texas Commerce's prime rate, with the actual interest rate reflecting certain
ratios based upon the Company's ability to repay its outstanding debt and the
value and projected timing of production of the Company's oil and gas reserves.
These and other similar ratios will also affect the Company's ability to borrow
under the Bank Facility and the timing and amount of any required repayments and
corresponding commitment reductions. Marc J. Shapiro, a director of the Company,
is the Chairman and Chief Executive Officer of Texas Commerce.
    
 
EFFECTS OF INFLATION
 
     Inflation during the three years ended December 31, 1993 has had little
effect on the Company's capital costs and results of operations.
 
ENVIRONMENTAL MATTERS
 
     Almost all phases of the Company's oil and gas operations are subject to
stringent environmental regulation by governmental authorities. Such regulation
has increased the costs of planning, designing, drilling, installing, operating
and abandoning oil and gas wells and other facilities. The Company has expended
significant financial and managerial resources to comply with such regulations.
Although the Company believes its operations and facilities are in general
compliance with applicable environmental regulations, risks of substantial costs
and liabilities are inherent in oil and gas operations. It is possible that
other developments, such as increasingly strict environmental laws, regulations
and enforcement policies or claims for damages to property, employees, other
persons and the environment resulting from the Company's operations, could
result in significant costs and liabilities in the future. As it has done in the
past, the Company intends to fund its cost of environmental compliance from
operating cash flows. See also, "Business--Other Business Matters--Environmental
Regulation" and Note 12 of the Notes to the Company's Consolidated Financial
Statements included elsewhere in this Prospectus.
 
DIVIDENDS
 
     Dividends on the Company's Convertible Preferred Stock, Series 7%, are
cumulative at an annual rate of $1.40 per share. No dividends may be declared or
paid with respect to the Common Stock if any dividends with respect to the
Convertible Preferred Stock, Series 7%, or the DECS are in arrears. As described
elsewhere in this Prospectus, the Company has eliminated the payment of its
$0.04 per share quarterly dividend on its Common Stock. The determination of the
amount of future cash dividends, if any, to be declared and paid on the
Company's Common Stock is in the sole discretion of the Company's Board of
Directors and will depend on dividend requirements with respect to the
Convertible Preferred Stock, Series 7%, and the DECS, the Company's financial
condition, earnings and funds from operations, the level of capital and
exploration expenditures, dividend restrictions in financing agreements, future
business prospects and other matters the Board of Directors deems relevant.
 
                                       28
<PAGE>   143
 
                            BUSINESS AND PROPERTIES
 
GENERAL
 
     The Company is engaged in the exploration, development and production of
oil and natural gas in the continental United States and in certain foreign
areas. At December 31, 1993, the Company had worldwide proved reserves totaling
292.0 MMBOE (consisting of approximately 248.2 MMBbls of oil and approximately
263.0 Bcf of natural gas), of which approximately 93% were domestic reserves and
approximately 7% were foreign reserves. During 1993, the Company's worldwide
production aggregated approximately 94.3 MBOE per day, of which approximately
71% was crude oil and approximately 29% was natural gas. A substantial portion
of the Company's domestic oil production is in long-lived fields with
well-established production histories. Pursuant to the Company's corporate
restructuring program (see "--Corporate Restructuring Program" below), the
Company has focused its activities on its three domestic core areas--the Permian
Basin in Texas and New Mexico, the offshore Gulf of Mexico and the San Joaquin
Valley of California--as well as in Argentina and Indonesia.
 
     For the five years ended December 31, 1993, the Company has replaced
approximately 172% of its production at an average finding cost of $4.80 per
BOE. Over the last four years, the Company has increased overall production by
increasing production from existing properties and through acquisitions. In
addition, the Company has reduced its overall cost structure. For example, over
the four-year period ended December 31, 1993, Santa Fe has increased its average
daily production from 69.1 MBOE to 94.3 MBOE (including 7.7 MBOE per day in 1993
attributable to production from non-core assets sold pursuant to the corporate
restructuring program) and has reduced its average production costs (including
related production, severance and ad valorem taxes) from $6.22 per BOE in 1990
to $5.39 per BOE in 1993.
 
   
     Most of the Company's domestic crude oil production is located in
California and Texas, while its domestic natural gas production comes primarily
from the Gulf of Mexico, New Mexico and Texas. During 1993, the Company's
domestic daily production averaged approximately 60.2 MBbls of crude oil and
165.0 MMcf of natural gas. Substantially all of the Company's oil and gas
production is sold at market responsive prices. Pursuant to the corporate
restructuring program, the Company sold properties having 1993 combined
production of 4.1 MBbls per day and 21.7 MMcf per day and estimated proved
reserves of approximately 16.7 MMBOE. The domestic crude oil marketing
activities of the Company are conducted through its Santa Fe Energy Products
Division ("Energy Products"), which is also engaged in crude oil trading.
Substantially all of the Company's domestic natural gas production is currently
marketed under the terms of a sales contract with Hadson. See "--Current Markets
for Oil and Gas."
    
 
     A substantial portion of the Company's domestic oil production is in
long-lived fields with well-established production histories and where EOR
methods are employed. As of December 31, 1993, approximately 69% of the
Company's domestic proved crude oil and liquids reserves and 50% of its 1993
average daily domestic production of crude oil and liquids were attributable to
the Midway-Sunset field in the San Joaquin Valley of California, where the
Company first began production in 1905. Nearly all of the reserves in this field
are heavy oil, the production of which depends primarily on steam injection. As
of December 31, 1993, an additional 21% of the Company's domestic proved crude
oil and liquids reserves and approximately 25% of its 1993 average daily
domestic production of crude oil and liquids were attributable to five other oil
producing properties: the Wasson and Reeves fields in the Permian Basin of west
Texas and the South Belridge, Kern River and Coalinga fields in the San Joaquin
Valley.
 
     The Company's foreign production is located in the El Tordillo field in
Argentina and in the Salawati Basin and Salawati Island area of Indonesia.
Production from the El Tordillo field averaged 2.4 MBbls of oil per day in 1993
and production from the Indonesian operations averaged 4.1 MBbls of oil per day
in 1993.
 
     The Company maintains an active exploration and development program, a
significant portion of which consists of EOR projects on the producing fields
discussed above. During 1993, Santa Fe spent a
 
                                       29
<PAGE>   144
 
total of $128.6 million on exploration and development programs and $32.6
million on proved property acquisitions. In October 1993, the Company announced
that its 1994 capital expenditures could increase to up to $240 million.
However, as a result of depressed oil prices that have prevailed since November
1993, the Company, consistent with industry practice, has determined to defer
certain of its capital projects in order to prudently manage cash flow in the
near term. Based upon current market conditions, the Company has authorized up
to $130 million of capital expenditures during 1994, a level which should allow
the Company to replace its estimated 1994 production, although no assurance can
be given regarding such replacement. The Company intends to continue to monitor
its capital expenditure program throughout the balance of 1994 and may, in
response to industry conditions, including, without limitation, prevailing oil
and natural gas prices and the outlook therefor, revise such program.
 
     In the United States, at December 31, 1993, the Company held oil and gas
rights to approximately 0.8 million net undeveloped leasehold and fee acres in
14 states, excluding approximately 1.1 million net undeveloped acres sold to
Bridge in April 1994 and 0.1 million net undeveloped fee acres sold to another
company in January 1994. See "--Corporate Restructuring Program." Outside the
United States, at December 31, 1993, the Company held exploration rights with
respect to an aggregate of approximately 3.5 million net undeveloped acres in
Argentina, Bolivia, Canada, Gabon, Indonesia, Morocco, Myanmar and Papua New
Guinea.
 
CORPORATE RESTRUCTURING PROGRAM
 
     In October 1993, the Company's Board of Directors adopted a broad corporate
restructuring program designed to improve earnings and cash flow while
increasing production and replacing reserves in the long-term. The restructuring
program is the result of an intensive review of the Company's operations and
cash flows and focuses on the concentration of capital spending in the Company's
core operating areas and the disposition of non-core assets. To provide
additional funding for the capital program, the Company also announced the
elimination of the payment of its $0.04 per share quarterly dividend on the
Common Stock, which will make available approximately $14 million annually. The
dividend on the Company's Convertible Preferred Stock, Series 7%, will remain at
its current level and dividends on the DECS are expected to be approximately
$   million per year.
 
     As a part of the Company's restructuring program, the Company intends to
concentrate its capital spending on its three domestic core areas--the Permian
Basin in Texas and New Mexico, the offshore Gulf Coast and the San Joaquin
Valley of California--as well as its productive areas in Indonesia and
Argentina. The domestic program includes development activities in the Delaware
formation in southeast New Mexico, a development drilling program for the
offshore Gulf of Mexico natural gas properties and infill drilling in the San
Joaquin Valley of California. Internationally, the program includes development
of the Company's Sierra Chata discovery in Argentina with gas sales expected to
commence in early 1995.
 
     The restructuring program includes an evaluation of the Company's capital
and cost structures to examine ways to increase flexibility and strengthen the
Company's financial performance. In this respect, in 1994 the Company determined
to proceed with the Refinancing, of which this Offering and the Concurrent
Debenture Offering are a part, pursuant to which approximately $180 million of
the Company's long-term indebtedness will be refinanced, assuming consummation
of such offerings.
 
   
     As a result of the dispositions described below, the Company has sold
undeveloped leasehold acreage and properties having combined production during
1993 of 4.1 MBbls of oil per day and 21.7 MMcf of natural gas per day and
estimated proved reserves of approximately 16.7 MMBOE for total proceeds of
approximately $89.3 million, has sold its natural gas gathering and processing
assets for Hadson securities and has realized approximately $11.3 million from
the sale of its remaining Depositary Units in the Trust. In addition, during the
first quarter of 1994 the Company sold its interest in certain oil and gas
properties for $8.3 million. As a result of these transactions, the Company has
disposed of substantially all of its inventory of non-core properties.
    
 
     Sale to Hadson.  In December 1993, the Company completed a transaction with
Hadson under the terms of which the Company sold the common stock of Adobe Gas
Pipeline Company ("AGPC"), a
 
                                       30
<PAGE>   145
 
   
wholly owned subsidiary, to Hadson in exchange for Hadson 11.25% preferred stock
with a face value of $52.0 million and 40% of Hadson's common stock. In
addition, the Company signed a seven-year gas sales contract under the terms of
which Hadson will market substantially all of the Company's domestic natural gas
production from specified existing wells and certain domestic development and
exploration wells. Pursuant to such contract, Hadson will be required to pay the
Company for all production delivered at a price for such gas equal to stipulated
published monthly index prices. See "--Current Markets for Oil and Gas." The
Company also designated one-half of the members of the Hadson Board of
Directors.
    
 
     AGPC's assets include approximately 630 miles of gathering and
transportation lines in Oklahoma, Texas and New Mexico with three processing
plants in west Texas and New Mexico and an intrastate pipeline system supplying
gas to commercial customers in Lubbock, Texas. Hadson's natural gas assets are
predominantly located in southeastern New Mexico and include two gas processing
facilities, a 12 Bcf natural gas storage facility and the 650-mile Llano
intrastate pipeline which has six connections to various interstate pipelines
serving strategic markets in the Midwest, on the East Coast and in southern
California.
 
   
     Sale to Vintage.  In November 1993, the Company completed the sale to
Vintage of certain southern California and Gulf Coast producing properties for
net proceeds totaling $42.0 million in cash. The transaction included most of
the Company's California interests outside its core area in the San Joaquin
Valley as well as certain offshore Gulf Coast properties in Texas, Louisiana and
Mississippi. Production from the properties sold to Vintage averaged
approximately 2.8 MBbls of oil per day and 6.5 MMcf of natural gas per day
during 1993. During 1993 such properties contributed $2.7 million to the
Company's income from operations.
    
 
   
     Sale to Bridge.  On April 8, 1994, the Company completed the sale to Bridge
of certain Mid-Continent and Rocky Mountain producing and nonproducing oil and
gas properties. The purchase agreement was originally signed in December 1993.
Bridge paid the Company approximately $47.3 million in cash, reflecting the net
effect of estimated closing adjustments to the original $51 million sales price.
    
 
     The transaction included substantially all of the Company's assets in the
Anadarko Basin of Oklahoma and Texas as well as its interests in the Rocky
Mountain states, excluding its interests in the Canyon Creek natural gas field
in Wyoming. The undeveloped acreage includes approximately 1.7 million mineral
and leasehold acres and exploratory options on an additional 8.1 million acres.
Production from the properties sold to Bridge averaged approximately 1.3 MBbls
of oil per day and 15.2 MMcf of natural gas per day during 1993. During 1993,
such properties contributed $5.8 million to the Company's income from
operations.
 
                                       31
<PAGE>   146
 
RESERVES
 
     The following table sets forth information regarding changes in the
Company's estimates of proved net reserves from January 1, 1991 to December 31,
1993 and the balance of the Company's estimated proved developed reserves at
December 31 of each of the years 1990 through 1993.
 
<TABLE>
<CAPTION>
                                                                    INCREASES (DECREASES)
                                        ------------------------------------------------------------------------------
                            BALANCE                                                NET                       CHANGES
                              AT        REVISION                 EXTENSIONS,    PURCHASES                       IN        BALANCE
                           BEGINNING       OF                    DISCOVERIES    (SALES) OF                  OWNERSHIP-    AT END
                              OF        PREVIOUS     IMPROVED        AND         MINERALS                    PARTNER-       OF
                            PERIOD      ESTIMATES    RECOVERY     ADDITIONS      IN PLACE     PRODUCTION     SHIP(A)      PERIOD
                           ---------    ---------    --------    -----------    ----------    ----------    ----------    -------
<S>                        <C>          <C>          <C>         <C>            <C>           <C>           <C>           <C>
Proved Reserves at 
  December 31, 1991:
  Oil and Condensate
    (MMBbls)............      222.3         (1.9)      15.9           1.8           10.9         (20.2)         0.4        229.2
  Gas (Bcf).............      185.9          0.4        0.5          19.6           (3.0)        (34.8)         2.2        170.8
  Oil Equivalent
    (MMBOE).............      253.3         (1.8)      16.0           5.1           10.4         (26.0)         0.7        257.7
Proved Reserves at 
  December 31, 1992:
  Oil and Condensate
    (MMBbls)............      229.2         14.1       17.0           2.6           15.0         (23.0)         0.2        255.1
  Gas (Bcf).............      170.8          7.3        1.3           5.6          137.1         (46.2)         1.6        277.5
  Oil Equivalent
    (MMBOE).............      257.7         15.3       17.2           3.6           37.9         (30.6)         0.4        301.5
Proved Reserves at 
  December 31, 1993:
  Oil and Condensate
    (MMBbls)............      255.1        (10.8)      26.7           6.2           (4.8)        (24.3)         0.1        248.2
  Gas (Bcf).............      277.5         26.7         --          55.9          (37.5)        (60.4)         0.8        263.0
  Oil Equivalent
    (MMBOE).............      301.5         (6.3)      26.7          15.4          (11.1)        (34.4)         0.2        292.0 (b)
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                                DECEMBER 31,
                                                                                 ------------------------------------------
                                                                                  1993        1992        1991        1990
                                                                                 ------      ------      ------      ------
<S>                                                                              <C>         <C>         <C>         <C>
Proved Developed Reserves (MMBOE)...........................................      225.5       248.4       210.3       205.0
</TABLE>
 
- ---------------
 
(a) The information set forth under the column headed "Changes in
    Ownership--Partnership" reflects reserve additions attributable to the
    Company's increased ownership interest in Santa Fe Energy Partners, L.P.
    (the "Partnership") caused by the reinvestment of distributions received by
    the Company in respect of its interest in the Partnership. At December 31,
    1993, the Company (through its subsidiaries) owned an aggregate 100%
    interest in the Partnership.
 
(b) At December 31, 1993, 5.2 MMBOE were subject to a 90% net profits interest
    held by the Trust. See "--Santa Fe Energy Trust."
 
    Historically, the Company has utilized active development and exploration
programs as well as selected acquisitions to replace its reserves depleted by
production. The Company has increased its proved reserves (net of production) by
approximately 35% over the five years ended December 31, 1993. Most of such
increases are attributable to proved reserve additions from the Company's
producing oil properties in the San Joaquin Valley of California and the Permian
Basin in west Texas, proved reserves acquired in the Adobe Merger and other
purchases of oil and gas reserves. At December 31, 1993, the Company's reserves
were 9.5 MMBOE lower than at December 31, 1992, primarily reflecting the sale
during 1993 of properties with reserves totaling 16.7 MMBOE partially offset by
additions.
 
                                       32
<PAGE>   147
 
     The following table sets forth as of December 31, 1993 the Company's
estimated proved reserves and the discounted net present value thereof in each
of the Company's principal operating areas.
 
<TABLE>
<CAPTION>
                                                              NATURAL         OIL             PRE-TAX
                                                  OIL           GAS        EQUIVALENT         PV1O(A)
             OPERATING REGION                   (MMBBLS)      (MMCF)        (MMBOE)        (IN MILLIONS)
- -------------------------------------------     --------      -------      ----------      -------------
<S>                                             <C>           <C>          <C>             <C>
Permian Basin..............................        41.6         45.8           49.2           $ 128.1
Offshore Gulf of Mexico....................         3.8        103.8           21.1             169.8
San Joaquin Valley.........................       183.6         11.8          185.6             167.1
Other Domestic.............................         1.9         74.5           14.3              78.2
International..............................        17.3         27.1           21.8              24.6
                                                --------      -------      ----------      -------------
  Total....................................       248.2        263.0          292.0           $ 567.8
                                                --------      -------      ----------      -------------
                                                --------      -------      ----------      -------------
</TABLE>
 
- ---------------
 
(a) Represents the net present value (discounted at 10%) of the pre-tax future
    net cash flows estimated to result from production of the Company's
    estimated proved reserves using estimated sales prices and estimates of
    production costs, ad valorem and production taxes and future development
    costs necessary to produce such reserves. The sales prices used in the
    determination of proved reserves and of estimated future net cash flows are
    based on the prices in effect at year end, and for 1993 averaged $9.27 per
    barrel for oil and $2.17 per Mcf for natural gas. The average sales price
    (unhedged) realized by the Company for its production during 1993 was
    $12.93 per barrel for oil and $2.03 per Mcf for natural gas.
 
    Ryder Scott Company ("Ryder Scott"), a firm of independent petroleum
engineers, prepared the above estimates of the Company's total proved reserves
as of December 31, 1990 through 1993.
 
    During 1993 the Company filed Energy Information Administration Form 23
which reported natural gas and oil reserves for the year 1992. On an equivalent
barrel basis, the reserve estimates for the year 1992 contained in such report
and those reported herein for the year 1992 do not differ by more than five
percent.
 
DOMESTIC DEVELOPMENT ACTIVITIES
 
    The Company is engaged in development activities primarily through the
application of thermal enhanced recovery techniques to its heavy oil properties
in the San Joaquin Valley, the use of secondary waterfloods and tertiary CO2
floods on its properties in other mature fields and the development of producing
properties acquired by the Company through its exploration successes and its
acquisition program. Thermal EOR operations involve the injection of steam into
a reservoir to raise the temperature and reduce the viscosity of the heavy oil,
facilitating the flow of the oil into producing wellbores. The Company has
operated thermal EOR projects in the San Joaquin Valley since the mid-1960s.
Similarly, the Company has extensive experience in the use of waterfloods, which
involve the injection of water into a reservoir to drive hydrocarbons into
producing wellbores. The Company has an interest in more than 50 waterflood
projects, and additional projects are planned for the future. Following the
waterflood phase, certain fields may continue to produce in response to tertiary
EOR projects, such as the injection of CO2 which mixes miscibly with the oil and
improves the displacement efficiency of the water injection. The Company's
principal CO2 floods are in the Wasson field and are operated by affiliates of
Shell Oil Company, ARCO and Amoco.
 
    Set forth below is a discussion of some of the Company's principal
development projects. The Company has operated in the Midway-Sunset and Wasson
fields since 1905 and 1939, respectively. The Company acquired interests in the
South Belridge field from Petro-Lewis in 1987 and in January 1991 expanded its
holdings in the field with the purchase of certain properties from Mission
Operating Partnership, L.P. The Company's interests in the Kern River and
Coalinga fields were acquired in 1905 and 1977, respectively. The Gulf of Mexico
fields were discovered on leases held by the Company or
 
                                       33
<PAGE>   148
 
acquired in the Adobe Merger, while the Delaware and Cisco-Canyon properties
were acquired as undeveloped properties.
 
     SAN JOAQUIN VALLEY
 
     Midway-Sunset.  The Company owns a 100% working interest (92% average net
revenue interest) in over 10,000 gross acres and 2,200 active wells in the
Midway-Sunset field. Substantially all the oil produced from the Midway-Sunset
field is heavy crude oil produced principally by cyclic steam and steamflood
operations from Pleistocene and Miocene reservoirs at depths less than 2,000
feet. These steam stimulation operations were initiated in the field in the
mid-1960s. During 1993 the Midway-Sunset field accounted for approximately 50%
of the Company's domestic crude oil and liquids production.
 
     At December 31, 1993 the Midway-Sunset field accounted for approximately
69% of the Company's domestic proved crude oil and liquid reserves. Reservoir
engineering studies prepared on behalf of the Company indicate significant
additions to its proved reserves in this field can continue to be made through
additional EOR and development projects. The Company has identified a
substantial number of locations that could be drilled in the field, depending in
part on future prices and economic conditions. The Company is pursuing
electrical cogeneration opportunities which could lower Midway-Sunset operating
costs.
 
     South Belridge.  The South Belridge field is located approximately 15 miles
north of the Midway-Sunset field. The Company operates three leases in the field
which produce heavy oil from the shallow Tulare sands and lighter low viscosity
oil from the deeper Diatomite reservoirs. Steamflood operations in the lower
Tulare sands are in progress on one of these leases and plans call for flooding
the remaining Tulare sands on this lease and all Tulare sands on another lease
in the coming years. Waterflood operations in the Diatomite reservoir have been
initiated on two leases and the Company expects to expand these operations to
include the rest of the developed area.
 
     Coalinga.  The Coalinga field is located 55 miles southwest of Fresno,
California. Successful steamfloods and a pilot steamflood project have been
conducted in the Lower Temblor Sands on three of the six leases in which the
Company owns interests in the field. During the next several years, the Company
plans to expand the pilot steamflood project in the lower sands to cover the
remaining producing area and expand steamfloods on the Upper Temblor Sands on
all leases after depletion of the lower zones. Most of the facilities required
for these projects are already in place as a result of the prior steamfloods.
 
     Kern River.  The Kern River field is located near Bakersfield, California.
The Lower Kern River Series sands have been successfully steamflooded on three
of the leases in which the Company owns an interest. Over the next several years
steamflood operations will be sequentially redeployed in the upper sands of the
Kern River Series. Eventually the Company plans to flood all sands on its
remaining leases in several stages. The Company has installed and operates a
large steam generation plant on these properties.
 
     PERMIAN BASIN
 
     Wasson.  The Company's interests in the Wasson field principally consist of
royalty and working interests in three units which are presently under CO2
flood. Most of the expenditures for plant, facilities, wells and equipment
necessary for such tertiary recovery projects have been made. In addition, while
expenditures relating to the purchase of CO2 for the Wasson field are expected
to continue, CO2 can be recycled and, therefore, such expenditures should
decline in the future.
 
     During 1993, the Wasson field accounted for approximately 9% of the
Company's domestic crude oil and liquids production and at December 31, 1993 the
field accounted for approximately 8% of the Company's domestic proved crude oil
and liquids reserves. Since initiation of CO2 flooding operations in 1984, the
field's previous production decline has been reversed. Reservoir engineering
studies prepared
 
                                       34
<PAGE>   149
 
on behalf of the Company indicate significant additions to proved reserves can
be made through additional EOR and development projects.
 
     Reeves.  The Company owns a 72% net interest in the Reeves field, seven
miles east of the large Wasson field in west Texas. The field has been under
waterflood since 1965. During 1993, six wells were drilled and 16 wells were
worked over as part of a program to delineate the extended productive limits of
the field, to evaluate the potential for infill drilling and to enhance current
waterflood operations. Based on the successes of the prior year's program, the
Company plans to initiate an infill drilling and workover program in this field
in the near future.
 
     New Mexico.  During 1993, the Company increased its activity in the
light-oil Delaware prospect in Lea and Eddy Counties of southeast New Mexico. A
total of 51 gross (18.1 net) development wells were completed in 1993 with a
100% success rate and during December 1993 such wells produced approximately 1.4
MBbls of oil per day and 3.1 MMcf of natural gas per day. Net production from
this area during December 1993 totaled approximately 1.5 MBbls of oil per day
and 4.0 MMcf of natural gas per day. The Company has plans to drill additional
development wells in 1994.
 
     Also in southeastern New Mexico, the Company participated in five gross
(2.8 net) wells in 1993 in the light oil and gas Cisco-Canyon project. Four
wells were completed as producers from the Cisco-Canyon zone by year-end and a
fifth continued production testing. The Company plans to continue delineation of
this play which contains some 75 identified potential development locations.
 
     OFFSHORE GULF OF MEXICO
 
     At December 31, 1993, offshore Gulf of Mexico properties accounted for 39%
of the Company's proved natural gas reserves and during 1993 these properties
accounted for approximately 56% of the Company's natural gas production.
 
   
     In the Gulf Division, several new fields or field additions were placed on
production during 1993. Net production from these fields at year-end averaged
approximately 29.0 MMcf of gas per day. Further development in these fields is
either planned or under study for 1994 and 1995. The Company's activities in the
offshore Gulf of Mexico are conducted in shallow water (less than 300 feet),
where the costs of drilling, completion and production are not as uncertain as
are the costs in the Flextrend and Deepwater areas of the Gulf of Mexico. During
1993, the Company participated in the drilling of four gross (1.3 net)
exploratory wells and one gross (0.3 net) well was drilling at year-end (which
well resulted in a discovery and a multi-well development program is expected to
commence in 1994). For a description of the Company's leasehold position in the
offshore Gulf of Mexico, see "--Domestic Exploration Activities."
    
 
DOMESTIC EXPLORATION ACTIVITIES
 
     The Company's domestic exploration focus continues to be in the Permian
Basin and the offshore Gulf of Mexico. Overall the Company participated in 22
gross (9.0 net) exploratory wells in 1993. A total of ten gross (3.6 net) were
completed as producers for a 40% net well success. At year end there were nine
gross (4.3 net) wells in some stage of drilling or completion.
 
     As of December 31, 1993, the Company held approximately 0.3 million net
undeveloped leasehold acres in 14 states and offshore areas, excluding
approximately 0.5 million net undeveloped leasehold acres sold to Bridge in
April 1994. The primary terms of lease expire with respect to 24% of such
acreage in 1994, 25% in 1995, 15% in 1996, 10% in 1997 and the remainder
thereafter. In addition, the Company owns approximately 0.5 million net acres of
undeveloped fee minerals in Louisiana, Texas and California.
 
     The Company also controls the oil and gas rights on approximately 8.1
million net undeveloped acres in the western United States through direct
ownership and pursuant to lease option agreements from Santa Fe Pacific Railroad
Company and other former affiliates. These lands are located in high risk
exploration areas. Due to this risk, the Company has historically negotiated
with third parties to explore this acreage with the Company to receive a royalty
or carried interest in the exploration phase. An agreement relating to
substantially all of these oil and gas rights has been entered into with Bridge.
This
 
                                       35
<PAGE>   150
 
agreement is intended to provide incentive to Bridge to accelerate exploration
activities on lands subject to these rights. The Company will receive a small
revenue interest in the event such activities are successful.
 
     Set forth below is a brief discussion of some of the Company's principal
exploration programs.
 
     Permian Basin.  This area continues to be one of the Company's most active
and successful exploration areas. During 1993, the Company participated in 18
gross (7.7 net) exploratory wells. Eight gross (3.3 net) of these were completed
in 1993 as oil or gas discoveries. Additionally, eight gross (4.0 net) were in
some phase of drilling or completing at year-end.
 
     Drilling objectives for the Company's exploratory program target oil and
gas zones at depths of between 2,500 to 15,000 feet. The shallower targets such
as the Delaware and Cisco-Canyon formations are providing successful results.
The Delaware program in southeast New Mexico was the subject of seven gross (3.7
net) exploratory and 51 gross (18.1 net) development wells completed in 1993. A
success rate of 58% of the net exploratory wells and 100% of the net development
wells was achieved in this increasingly active light oil play. Currently, the
Company has identified in excess of 150 development well locations and has 20
exploratory prospects in inventory to be drilled over the next several years.
 
     In the west Texas Permian Basin, the Company completed the shooting of 3-D
seismic over its 250-square mile block near Midland last fall. The joint venture
block contains over 100,000 net acres of lands owned or controlled by the
Company and its partners. Almost all of the Company's 25% interest in the 3-D
seismic was paid by a promoted partner. Drilling began in December 1993 on two
prospects identified in this program. Additional drilling is planned on a
variety of other prospects in 1994 at depths of 10,000 to 12,000 feet.
 
     Offshore Gulf of Mexico.  The Company participated in four gross (1.3 net)
exploratory wells in the offshore Gulf of Mexico in 1993 and one gross (0.3 net)
was drilling at year-end. One gross (0.3 net) well resulted in a discovery on
which a multi-well development program will commence in the first quarter of
1994.
 
     The Company acquired 3-D seismic coverage over 12 blocks during 1993 adding
to its extensive Gulf of Mexico seismic database which includes 3-D coverage on
57 blocks. Currently, the Company has 35 exploratory prospects in inventory and
some 30 development locations identified, a portion of which are exploratory and
planned to be drilled in 1994.
 
     At year-end, the Company owned 179 blocks of acreage in the offshore Gulf
of Mexico consisting of approximately 299,800 gross (147,400 net) undeveloped
acres and 257,900 gross (79,000 net) developed acres.
 
INTERNATIONAL DEVELOPMENT ACTIVITIES
 
     Indonesia.  The Company, through a wholly owned subsidiary, is engaged in
the production of crude oil in Indonesia through a joint venture (the "Salawati
Basin Joint Venture") formed in 1970 to explore for and develop hydrocarbon
reserves in the Salawati Basin area of Irian Jaya. At December 31, 1993, the
Company held a 33 1/3% participation interest in, and acts as operator for, the
Salawati Basin Joint Venture. The Salawati Basin Joint Venture operates under a
production sharing contract (the "PSC") with the Indonesia state oil agency
("Pertamina"), which had an initial term of 30 years and expires in the year
2000. The Company is currently negotiating with such state oil agency to extend
the contract for an additional 20 years. As of December 31, 1993, the contract
covered an area of approximately 235,000 acres. Production occurs from seven oil
and three gas condensate fields.
 
     The PSC entitles the Salawati Basin Joint Venture to recover all of its
expenditures related to the operation (the "cost recovery amount") before any
additional production is shared with the Indonesian state oil agency, which
recovery is effected by allocating to the Salawati Basin Joint Venture a portion
of the crude oil production sufficient, at the Indonesian government official
crude oil price ("ICP"), to offset the cost recovery amount. The balance of
production after the cost recovery amount is divided between
 
                                       36
<PAGE>   151
 
the parties, with approximately 66% allocated to Pertamina and 34% allocated to
the Salawati Basin Joint Venture. However, 25% of the 34% pre-tax portion (8.5%
of total production) must be sold into the Indonesian domestic market for $0.20
per barrel. The entire entitlement of the Salawati Basin Joint Venture under the
PSC, including the domestic market obligation, averaged approximately 10.1 MBbls
per day (approximately 3.4 MBbls per day net to the Company) for the year ended
December 31, 1993. The Salawati Basin Joint Venture is required to pay
Indonesian income taxes at the rate of 56%.
 
     The Company, through another subsidiary, has also entered into a joint
venture with Pertamina to explore the Salawati Island Block of Irian Jaya. The
effective date of this joint venture is April 23, 1990 with a term of 30 years.
At December 31, 1993, the Company held a 16 2/3% participation interest in the
block which covers 1.09 million acres. The Company and Pertamina (with its 50%
interest) jointly operate the contract area. In 1991, a successful exploratory
well tested at a combined rate of 3.6 MBbls of oil per day and was followed by
two successful delineation wells. Pertamina declared the field commercial in
January 1993 and designated it as the Matoa field. Sales of production began in
January 1993. Development activities through 1993 have the Matoa field producing
approximately 5.6 MBbls of oil per day from eight wells as of December 31, 1993.
 
     Under the terms of the PSC, the joint venture participants are allowed to
recover the cost recovery amount, after an initial 20% portion (2.9% to the
joint venture participants and 17.1% to Pertamina) has been deducted, by
allocating to the joint venture participants a portion of the crude oil
production ("cost oil") sufficient to offset the cost recovery amount. All
unrecovered costs in any calendar year can be carried forward to future years.
The balance of production after allocation of cost oil is allocated
approximately 85.5% to Pertamina and 14.5% to the other Salawati Island Venture
participants. However, 7.25% of the gross production allocated to the joint
venture participants must be sold into the Indonesian domestic market for 10% of
ICP.
 
     Argentina.  In 1991, the Company, through a wholly owned subsidiary,
acquired an 18% non-operated working interest (15.84% net interest) in the El
Tordillo field in Chubut Province, Argentina. At that time, the field was
producing approximately 10,500 barrels of oil per day. The Company has agreed to
spend approximately $16.7 million net during the period from July 1, 1992 to
July 1, 1996 on development and maintenance of the field which began with an
extensive workover and recompletion program. As of December 31, 1993 the El
Tordillo owners have completed 163 such workovers and drilled three new wells.
During that time, production increased to approximately 16.0 MBbls of oil per
day. The Company expects this program to continue through 1994 and anticipates
an expansion of the existing waterflood facilities.
 
     Under the terms of the contract with the Argentine national oil company,
the joint venture group is allowed to sell crude oil produced from this field
into the open market. There is a 12% royalty on gross production and the joint
venture is taxed at a 30% rate after deductions for capitalized costs and
expenses.
 
     In April 1993, the Company's subsidiary completed the Sierra Chata X-1 as a
successful exploratory test in Chihuidos Block, Neuquen Province, Argentina. The
well produced at a combined rate of 22.2 MMcf per day and 109 barrels of
condensate per day. Carbon dioxide content of the natural gas was 6%. Five
successful delineation wells were drilled in 1993. Producing rates on these
wells varied from 3.2 MMcf to 27.6 MMcf per day. Engineering and geological
studies are presently being undertaken to develop the field through additional
drilling, with 4.0 gross (1.0 net) additional wells currently planned for 1994.
In addition, the Company and its partners intend to build a gas processing
facility and a 40-mile gathering pipeline during 1994 that will transport
production from the field and interconnect with a main transmission line owned
by a third party that transports gas to Buenos Aires and other major markets.
Construction of the gas processing facility and the pipeline and the drilling of
the development wells are estimated to cost an aggregate of $76.0 million gross
($17.2 million net to the Company's interest). The Company expects that sales of
production from the Sierra Chata discovery will commence in 1995.
 
                                       37
<PAGE>   152
 
INTERNATIONAL EXPLORATION ACTIVITIES
 
     In 1993, the Company had its most active year ever in the international
arena. The Company participated in six gross (1.8 net) exploratory wells of
which two gross (0.5 net) were completed as natural gas wells. Additionally,
four gross (1.2 net) wells were either drilling or completing at year-end.
 
     The Company made one exploration discovery in 1993. The Sierra Chata
natural gas discovery in the Neuquen Basin of Argentina is being developed from
sandstone reservoirs at 6,000 feet. The Company has a 22.5% working interest
(20% net revenue interest) and is operator of this field. To date a total of six
gross (1.3 net) wells have been drilled with no dry holes. Combined gross flow
rates from these six wells are in excess of 100 MMcf of gas and 500 barrels of
condensate per day. Additional development drilling will continue during 1994 to
increase production capacity and further define the limits of the field. See
"--International Development Activities."
 
     The Company plans to drill eight gross (2.8 net) wells in 1994 in addition
to the four gross (1.2 net) wells which carried over from 1993 in either a
drilling or completing status. The 1994 drilling and exploratory activity will
be centered principally in Indonesia and South America. Of the total wells to be
completed in 1994, four gross (1.2 net) are in Indonesia, four gross (1.3 net)
are in Argentina and Bolivia, one gross (0.2 net) is in Papua New Guinea, two
gross (1.0 net) are in Canada and one gross (0.3 net) is in Gabon (West Africa).
 
   
     The Company holds exploration contracts totaling 3.5 million net acres in
eight foreign countries. The majority of acreage is in Indonesia (1.1 million
net acres) and South America (1.2 million net acres) with the balance in Canada,
Morocco, Myanmar, Papua New Guinea and Gabon.
    
 
DRILLING ACTIVITIES
 
     The table below sets forth, for the periods indicated, the number of wells
drilled in which the Company had an economic interest. As of December 31, 1993,
the Company was in the process of drilling or completing 9 gross (4.3 net)
domestic exploratory wells and 13 gross (5.3 net) domestic development wells, 4
gross (1.2 net) foreign exploratory wells and 3 gross (1.0 net) foreign
development wells.
 
<TABLE>
<CAPTION>
                                                                YEAR ENDED DECEMBER 31,
                                                --------------------------------------------------------
                                                      1993                1992                1991
                                                ----------------     --------------     ----------------
                                                GROSS      NET       GROSS     NET      GROSS      NET
                                                -----     ------     -----     ----     -----     ------
<S>                                             <C>       <C>        <C>       <C>      <C>       <C>
Development Wells
  Domestic
     Completed as natural gas wells.........      21         6.0        6       1.5       25         7.5
     Completed as oil wells.................     237       180.0       62      39.0      220       167.3
     Dry holes..............................      10         3.6        5       0.4        6         1.6
  Foreign
     Completed as natural gas wells.........       4         1.0       --        --       --          --
     Completed as oil wells.................       3         0.9       --        --       --          --
                                                -----     ------     -----     ----     -----     ------
                                                 275       191.5       73      40.9      251       176.4
                                                -----     ------     -----     ----     -----     ------
Exploratory Wells
  Domestic
     Completed as natural gas wells.........       3         0.9        1       0.3        6         2.0
     Completed as oil wells.................       7         2.7        4       1.2        6         1.9
     Dry holes..............................      12         5.4        2       0.6       19         7.2
  Foreign
     Completed as natural gas wells.........       2         0.4       --        --       --          --
     Completed as oil wells.................      --          --        1       0.3       --          --
     Dry holes..............................       4         1.3        4       1.3        3         0.4
                                                -----     ------     -----     ----     -----     ------
                                                  28        10.7       12       3.7       34        11.5
                                                -----     ------     -----     ----     -----     ------
                                                 303       202.2       85      44.6      285       187.9
                                                -----     ------     -----     ----     -----     ------
                                                -----     ------     -----     ----     -----     ------
</TABLE>
 
                                       38
<PAGE>   153
 
DOMESTIC ACREAGE
 
     The following table summarizes the Company's developed and undeveloped fee
and leasehold acreage in the United States at December 31, 1993. Excluded from
such information is acreage in which the Company's interest is limited to
royalty, overriding royalty and other similar interests.
 
<TABLE>
<CAPTION>
                                                          UNDEVELOPED                DEVELOPED
                                                     ---------------------     ---------------------
                                                      GROSS         NET         GROSS         NET
                                                     --------     --------     --------     --------
<S>                                                  <C>          <C>          <C>          <C>
Alabama--Offshore................................          --           --       23,040       12,480
Alabama--Onshore.................................       3,089          108        6,063          382
Arkansas.........................................         633          493        4,177        3,173
California--Offshore.............................          --           --       17,280        2,074
California--Onshore..............................     249,207      248,990        7,391        7,011
Colorado.........................................          --           --        6,368        5,657
Illinois.........................................         202           50           43           13
Kansas...........................................      19,433       19,373        4,591        1,002
Louisiana--Offshore..............................     222,376      116,843      190,675       57,721
Louisiana--Onshore...............................      17,575       16,620       14,635        2,941
Michigan.........................................          --            -           71           11
Mississippi......................................         114           30        3,724          810
Montana..........................................          --           --        3,196          142
Nevada...........................................       3,491          764        9,455        9,455
New Mexico.......................................     195,750      155,594       41,427       18,852
New York.........................................          --           --          189           47
North Dakota.....................................       1,509          544        4,337        1,377
Oklahoma.........................................       1,917        1,917       29,589        9,940
Texas--Offshore..................................      77,397       30,545       67,194       21,243
Texas--Onshore...................................     180,828      174,912      246,287      168,421
Utah.............................................       1,348          575        8,389        3,494
Wyoming..........................................      13,785       10,804       25,888       11,312
                                                     --------     --------     --------     --------
                                                      988,654      778,162      714,009      337,558
                                                     --------     --------     --------     --------
                                                     --------     --------     --------     --------
</TABLE>
 
     The foregoing table excludes approximately 2,033,400 gross (1,682,000 net)
undeveloped fee and leasehold acres and 80,200 gross (45,900 net) developed
acres sold to Bridge in April 1994 pursuant to a purchase agreement signed in
December 1993 and 123,000 gross (123,000 net) undeveloped acres sold in January
1994.
 
FOREIGN ACREAGE
 
     The following table summarizes the Company's foreign acreage at December
31, 1993:
 
<TABLE>
<CAPTION>
                                                          UNDEVELOPED                 DEVELOPED
                                                   -------------------------     -------------------
                                                      GROSS           NET         GROSS        NET
                                                   -----------     ---------     -------     -------
<S>                                                <C>             <C>           <C>         <C>
Argentina......................................      2,103,010       550,457      53,988      10,858
Bolivia........................................      1,442,446       649,100          --          --
Canada (Alberta)...............................        150,703        68,071          --          --
Gabon..........................................        701,000       175,250          --          --
Indonesia......................................      4,439,569     1,059,193       9,360       2,870
Morocco........................................      1,300,000       422,500          --          --
Myanmar........................................        394,000       315,200          --          --
Papua New Guinea...............................      1,970,000       295,500          --          --
                                                   -----------     ---------     -------     -------
                                                    12,500,728     3,535,271      63,348      13,728
                                                   -----------     ---------     -------     -------
                                                   -----------     ---------     -------     -------
</TABLE>
 
                                       39
<PAGE>   154
 
CURRENT MARKETS FOR OIL AND GAS
 
     The revenues generated by the Company's operations are highly dependent
upon the prices of, and demand for, oil and gas. For the last several years,
prices of these products have reflected a worldwide surplus of supply over
demand. The price received by the Company for its crude oil and natural gas
depends upon numerous factors beyond the Company's control, including economic
conditions in the United States and elsewhere and the world political situation
as it affects OPEC, the Middle East (including the current embargo of Iraqi
crude oil from worldwide markets) and other producing countries, the actions of
OPEC and governmental regulation. The fluctuation in world oil prices continues
to reflect market uncertainty regarding OPEC's ability to control member country
production and underlying concern about the balance of world demand for and
supply of oil and natural gas. Decreases in the prices of oil and gas have had,
and could have in the future, an adverse effect on the Company's development and
exploration programs, proved reserves, revenues, profitability, cash flow and
dividend levels. See "Management's Discussion and Analysis of Financial
Condition and Results of Operations--General."
 
     The Company believes the market for heavy crude oil produced in California
differs substantially from the remainder of the domestic crude oil market. It is
necessary to heat or dilute heavy oil to make it flow, which increases
transportation and handling costs, and it is also more costly to refine. As a
result, the price paid for heavy crude oil is generally lower than the price
paid for light crudes. In addition, there is currently an oversupply of crude
oil in the California market that has had an adverse effect on the prices for
crude oil in that market. Although no assurance can be given, the Company
believes that such oversupply will not continue for the long term due to the
availability of crude oil pipelines to transport excess crude oils, including
blended oils, to markets in the Midwest and west Texas, and due to the decline
of crude oil produced from the North Slope of Alaska.
 
     From time to time the Company has hedged a portion of its oil and natural
gas production to manage its exposure to volatility in prices of oil and natural
gas. The Company used several instruments whereby monthly settlements were based
on the difference between the price, or a range of prices, specified in the
instruments and the monthly average of the daily settlement prices of certain
WTI crude oil futures contracts or of certain natural gas futures contracts
quoted on the New York Mercantile Exchange. In instances where the actual
average of the daily settlement price was less than the price specified in the
contract, the Company received a settlement based on the difference; in
instances where the actual average of the daily settlement price was higher than
the specified price, the Company paid an amount based on the difference. The
instruments utilized by the Company differed from futures contracts in that
there was no contractual obligation which required or allowed for the future
delivery of the product. Settlements were included in revenues in the period in
which the oil and natural gas were sold.
 
     In 1990, oil hedges resulted in a $10.7 million reduction in oil revenues
and in 1991 and 1992 oil hedges resulted in an increase in oil revenues of $41.7
million and $9.7 million, respectively. The Company has had no oil hedging
contracts subsequent to 1992. In 1992 and 1993, natural gas hedges resulted in a
reduction in natural gas revenues of $0.5 million and $8.2 million,
respectively. The Company currently has six open natural gas hedging contracts
covering an aggregate of approximately 24.6 MMcf of natural gas per day with
terms beginning in March and April 1994 and ending in August and September 1994.
The "approximate break-even price" (the average of the monthly settlement prices
of the applicable futures contracts which would result in no settlement being
due to or from the Company) with respect to such contracts is approximately
$1.88 per Mcf. In addition, a certain party holds an option to exercise an
additional hedging contract for a five-month period beginning May 1994 covering
approximately 4.7 MMcf of natural gas per day at an approximate break-even price
of $1.92 per Mcf. The Company has no other outstanding natural gas hedging
instruments.
 
     During 1993, affiliates of Shell Oil Company and Celeron Corporation
accounted for approximately 23% and 15%, respectively, of the Company's domestic
crude oil and liquids and natural gas revenues. No other individual customer
accounted for more than 10% of such revenues during 1993. Substantially all of
the Company's oil and natural gas production is currently sold at
market-responsive prices that approximate spot prices. Availability of a ready
market for the Company's oil and gas production depends
 
                                       40
<PAGE>   155
 
on numerous factors, including the level of consumer demand, the extent of
worldwide oil production, the cost and availability of alternative fuels, the
cost of and proximity of pipelines and other transportation facilities,
regulation by state and federal authorities and the cost of complying with
applicable environmental regulations.
 
     In December 1993, the Company signed a seven-year gas sales contract with
Hadson pursuant to the terms of which Hadson will market substantially all of
the Company's domestic natural gas production. Pursuant to such gas contract,
Santa Fe dedicated to Hadson all of its domestic natural gas production from
specified existing wells, which consist of essentially all of the Company's
domestic natural gas production, except to the extent such production was
dedicated under pre-existing contracts. Upon the expiration of any such
pre-existing contracts, that production shall also be dedicated to Hadson.
 
     In addition to production from existing wells, such gas contract provides
for the dedication by the Company of gas production from certain domestic
development wells and exploration wells to the extent that the Company accepts
proposals from Hadson to gather and market production from such exploration
wells. Production from gas wells acquired by the Company pursuant to an
acquisition of producing oil and gas properties will not be dedicated under the
gas contract but may be dedicated by the mutual agreement of the Company and
Hadson.
 
     Pursuant to the gas contract, Hadson will be required to pay the Company
for all production delivered at a price for such gas equal to stipulated
published monthly index prices. Hadson is obligated to use its best efforts to
receive gas from the Company at delivery points so as to maximize the net price
received by the Company for such production. Payment for purchases by Hadson are
to be made in immediately available funds no later than the last working day of
the month following the month of production.
 
SANTA FE ENERGY TRUST
 
     In November 1992, 5,725,000 Depositary Units, each consisting of beneficial
ownership of one unit of undivided interest in the Trust and a $20 face amount
beneficial ownership interest in a $1,000 face amount zero-coupon United States
Treasury obligation maturing on February 15, 2008, were sold in a public
offering. The assets of the Trust consist of certain oil and gas properties
conveyed by the Company. A total of $114.5 million was received from public
investors, of which $38.7 million was used to purchase the Treasury obligations
and $5.7 million was used to pay underwriting commissions and discounts. The
Company received the remaining $70.1 million of proceeds and retained 575,000
Depositary Units. A portion of the proceeds received by the Company was used to
retire $30.0 million of the debt incurred in connection with the Adobe Merger
and the remainder was used for general corporate purposes. In the first quarter
of 1994, the Company sold the remaining 575,000 Depositary Units it held for
$11.3 million.
 
     The properties conveyed to the Trust consisted of two term royalty
interests in two production units in the Wasson field in west Texas and a net
profits royalty interest in certain royalty and working interests in a
diversified portfolio of properties located in 12 states. At December 31, 1993,
5.2 MMBOE of the Company's estimated proved reserves were subject to such net
profits interest. The reserve estimates included herein reflect the conveyance
of the Wasson term royalties to the Trust.
 
     For any calendar quarter ending on or prior to December 31, 2002, the Trust
will receive additional royalty payments to the extent that such payments are
required to provide distributions of $0.40 per Depositary Unit per quarter. Such
additional royalty payments, if needed, will come from the Company's remaining
royalty interest in one of the production units in the Wasson field described
above, and are non-recourse to the Company. If such additional payments are
made, certain proceeds otherwise payable to the Trust in subsequent quarters may
be reduced to recoup the amount of such additional payments. The aggregate
amount of the additional royalty payments (net of any amounts recouped) are
limited to $20.0 million on a revolving basis. The Company was required to make
an additional royalty payment of $362,000 with respect to the distribution made
by the Trust for operations during the quarter ended
 
                                       41
<PAGE>   156
 
December 31, 1993. On April 21, 1994, the Trust announced that a distribution of
$0.40 per Depositary Unit would be paid for the calendar quarter ended March 31,
1994 to Unitholders of record on May 16, 1994, which distribution will include
an additional royalty payment by the Company of $505,700.
 
OTHER BUSINESS MATTERS
 
     Competition
 
     The Company faces competition in all aspects of its business, including,
but not limited to, acquiring reserves, leases, licenses and concessions;
obtaining goods, services and labor needed to conduct its operations and manage
the Company; and marketing its oil and gas. The Company's competitors include
multinational energy companies, government-owned oil and gas companies, other
independent producers and individual producers and operators. The Company
believes that its competitive position is affected by price, its geological and
geophysical capabilities and ready access to markets for production. Many
competitors have greater financial and other resources than the Company, more
favorable exploration prospects and ready access to more favorable markets for
their production. The Company believes that the well-defined nature of the
reservoirs in its long-lived oil fields, its expertise in EOR methods in these
fields, its active development and exploration position and its experienced
management may give it a competitive advantage over some other producers.
 
     Regulation of Crude Oil and Natural Gas
 
     The petroleum industry is subject to various types of regulation throughout
the world, including regulation in the United States by state and federal
agencies. Domestic legislation affecting the oil and gas industry is under
constant review for amendment or expansion, frequently increasing the regulatory
burden. Also, numerous departments and agencies, both federal and state, are
authorized by statute to issue and have issued rules and regulations binding on
the oil and gas industry and its individual members, compliance with which is
often difficult and costly and which may carry substantial penalties for
non-compliance. Although the regulatory burden on the oil and gas industry
increases the cost of doing business and, consequently, affects profitability,
generally these burdens do not appear to affect the Company any differently or
to any greater or lesser extent than other companies in the industry with
similar types and quantities of production. While the Company is a party to
several regulatory proceedings before governmental agencies arising in the
ordinary course of business, management does not believe that the outcome of
such proceedings will have a material adverse affect on the operations or
financial condition of the Company. Set forth below is a general description of
certain state and federal regulations which have an effect on the Company's
operations.
 
     State Regulation.  State statutes and regulations require permits for
drilling operations, drilling bonds and reports concerning operations. Most
states in which the Company operates also have statutes and regulations
governing the conservation of oil and gas and the prevention of waste, including
the unitization or pooling of oil and gas properties and rates of production
from oil and gas wells. Rates of production may be regulated through the
establishment of maximum daily production allowables on a market demand or
conservation basis or both.
 
     Federal Regulation.  A portion of the Company's oil and gas leases are
granted by the federal government and administered by the Bureau of Land
Management ("BLM") and the Minerals Management Service ("MMS"), both of which
are federal agencies. Such leases are issued through competitive bidding,
contain relatively standardized terms and require compliance with detailed BLM
and MMS regulations and orders (which are subject to change by the BLM and the
MMS). For offshore operations, lessees must obtain MMS approval for exploration
plans and development and production plans prior to the commencement of such
operations. In addition to permits required from other agencies (such as the
Coast Guard, Army Corps of Engineers and Environmental Protection Agency),
lessees must obtain a permit from the BLM or the MMS prior to the commencement
of drilling.
 
     The interstate transportation of natural gas is regulated by the Federal
Energy Regulatory Commission ("FERC") under the Natural Gas Act of 1938 and, to
a lesser extent, the Natural Gas Policy Act of
 
                                       42
<PAGE>   157
 
1978 (collectively, the "Acts"). Numerous questions have been raised concerning
the interpretation and implementation of several significant provisions of the
Acts, as well as the regulations and policies promulgated by FERC thereunder. A
number of lawsuits and administrative proceedings have been instituted which
challenge the validity of regulations implementing the Acts. In addition, as
described below, FERC currently has under consideration various policies and
proposals which will affect the marketing of gas under new and existing
contracts.
 
     Since 1991, FERC's regulatory efforts have centered largely around its
generic rulemaking proceedings, Order No. 636. Through Order No. 636 and
successor orders, FERC has undertaken to restructure the interstate pipeline
industry with the goal of providing enhanced access to, and competition among,
alternative gas suppliers. By requiring interstate pipelines to "unbundle" their
sales services and to provide its customers with direct access to any upstream
pipeline capacity held by pipelines, Order No. 636 has enabled pipeline
customers to choose the levels of transportation and storage service they
require, as well as to purchase gas directly from third-party merchants other
than the pipelines.
 
     Although the implementation of Order No. 636 on individual interstate
pipelines is nearing completion, this process is not yet final. Moreover, nearly
all of these individual restructuring proceedings, as well as Order No. 636
itself and the regulations promulgated thereunder, are subject to pending
appellate review and could possibly be substantially modified by the courts.
Thus, while Order No. 636, if ultimately implemented without substantial change,
should generally facilitate the transportation of gas and the direct access to
end-user markets, the precise impact of these regulations on marketing
production cannot be predicted at this time.
 
     Beyond Order No. 636, FERC is now considering a number of other important
policies, all of which could significantly affect the marketing of gas. Some of
the more notable of these regulatory initiatives include FERC's rulemakings on
gathering and production-area rate design, regulation of pipeline marketing
affiliates under Order No. 497, and standards for pipeline electronic bulletin
boards and electronic data exchange.
 
     The U.S. Congress has historically been active in the area of oil and
natural gas regulation. Although no prediction can be made concerning future
regulation or legislation which may affect the competitive status of the
Company, or affect the prices at which it may sell its oil and gas, any
regulation or legislation that, directly or indirectly, lowers price levels for
oil and gas sold or increases the costs of production could have an adverse
effect on the Company's operations.
 
     Environmental Regulation
 
     Various federal, state and local laws and regulations covering the
discharge of materials into the environment, or otherwise relating to the
protection of the environment, may affect the Company's operations and costs. In
particular, the Company's oil and gas exploration, development, production and
EOR operations, its activities in connection with storage and transportation of
liquid hydrocarbons and its use of facilities for treating, processing,
recovering or otherwise handling hydrocarbons and wastes therefrom are subject
to stringent environmental regulation by governmental authorities. Such
regulation has increased the cost of planning, designing, drilling, installing,
operating and abandoning the Company's oil and gas wells and other facilities.
The Company has expended significant resources, both financial and managerial,
to comply with environmental regulations and permitting requirements and
anticipates that it will continue to do so in the future in order to comply with
stricter industry and regulatory safety standards such as those described below.
Although the Company believes that its operations and facilities are in general
compliance with applicable environmental regulations, risks of substantial costs
and liabilities are inherent in oil and gas operations and there can be no
assurance that significant costs and liabilities will not be incurred in the
future. Moreover, it is possible that other developments, such as increasingly
strict environmental laws, regulations and enforcement policies thereunder, and
claims for damages to property, employees, other persons and the environment
resulting from the Company's operations, could result in substantial costs and
liabilities in the future. Although the resulting costs cannot be accurately
estimated at this time, these requirements and risks typically apply
 
                                       43
<PAGE>   158
 
to companies with types and quantities of production similar to those of the
Company and to the oil and gas industry in general.
 
     Offshore Production.  Offshore oil and gas operations are subject to
regulations of the United States Department of the Interior, the Department of
Transportation, the United States Environmental Protection Agency ("EPA") and
certain state agencies. In particular, the Federal Water Pollution Control Act
of 1972, as amended ("FWPCA"), imposes strict controls on the discharge of oil
and its derivatives into navigable waters. The FWPCA provides for civil and
criminal penalties for any discharges of petroleum in reportable quantities and,
along with the Oil Pollution Act of 1990 and similar state laws, imposes
substantial liability for the costs of oil removal, remediation and damages.
 
     Solid and Hazardous Waste.  The Company currently owns or leases, and has
in the past owned or leased, numerous properties that have been used for
production of oil and gas for many years. Although the Company has utilized
operating and disposal practices that were standard in the industry at the time,
hydrocarbons or other solid wastes may have been disposed or released on or
under the properties owned or leased by the Company. State and federal laws
applicable to oil and gas wastes and properties have gradually become more
strict. Under these new laws, the Company has been, and in the future could be,
required to remove or remediate previously disposed wastes or property
contamination (including groundwater contamination) or to perform remedial
plugging operations to prevent future contamination.
 
     The Company generates hazardous and nonhazardous wastes that are subject to
the federal Resource Conservation and Recovery Act and comparable state
statutes. The EPA has limited the disposal options for certain hazardous wastes
and has recently issued stricter disposal standards for nonhazardous wastes.
Furthermore, it is possible that additional wastes (which could include certain
wastes generated by the Company's oil and gas operations) could in the future be
designated as "hazardous wastes," which are subject to more rigorous and costly
disposal requirements. In response to the changing regulatory environment, the
Company has made certain changes in its operations and disposal practices. For
example, the Company has commenced remediation of sites or replacement of
facilities in some locations where its wastes have previously been disposed.
 
     Superfund.  The Comprehensive Environmental Response, Compensation and
Liability Act ("CERCLA"), also known as the "superfund" law, imposes liability,
without regard to fault or the legality of the original conduct, on certain
classes of persons that contributed to the release of a "hazardous substance"
into the environment. These persons include the owner or operator of a site and
companies that disposed or arranged for the disposal of the hazardous substance
found at a site. CERCLA also authorizes the EPA and, in some cases, third
parties to take actions in responses to threats to the public health or the
environment and to seek to recover from the responsible classes of persons the
costs they incur. In the course of its operations, the Company has generated and
will generate wastes that may fall within CERCLA's definition of "hazardous
substances." The Company may be responsible under CERCLA for all or part of the
costs to clean up sites at which such wastes have been disposed.
 
     The Company has been identified as one of over 250 potentially responsible
parties ("PRPs") at a superfund site in Los Angeles County, California. The site
was operated by a third party as a waste disposal facility from 1948 until 1983.
The EPA is requiring the PRPs to undertake remediation of the site in several
phases, which include site monitoring and leachate control, gas control and
final remediation. In 1989 the EPA and a group of the PRPs entered into a
consent decree covering the site monitoring and leachate control phase of
remediation. The Company is a member of the group that is responsible for
carrying out this first phase of work, which is expected to be completed in five
to eight years. The maximum liability of the group, which is joint and several
for each member of the group, for the first phase is $37.0 million, of which the
Company's share is expected to be approximately $2.4 million ($1.3 million after
recoveries from working interest participants in the unit at which the wastes
were generated) payable over the period that the phase one work is performed.
The EPA and a group of PRPs of which the Company is a member have also entered
into a subsequent consent decree with respect to the second phase of work (gas
control). The liability of this group has not been capped, but is estimated to
be
 
                                       44
<PAGE>   159
 
$130 million. The Company's share of costs for this phase, however, is expected
to be approximately of the same magnitude as that of the first phase because
more parties are involved in the settlement. The Company has provided for costs
with respect to the first two phases, but it cannot currently estimate the cost
of any subsequent phases of work which may be required by the EPA.
 
     In 1989, Adobe received requests from the EPA for information pursuant to
Section 104(e) of CERCLA with respect to the Gulf Coast Vacuum Services and D.
L. Mud superfund sites located in Abbeville, Louisiana. The EPA has issued its
record of decision at the Gulf Coast Site and on February 9, 1993 the EPA issued
to all PRPs at the site a settlement order pursuant to Section 122 of CERCLA. On
December 15, 1993 the Company entered into a cost-sharing agreement with other
PRPs to participate in the final remediation of the Gulf Coast site, which is
presently estimated to cost $15.0 million. The Company's share of the
remediation is approximately $600,000 and reflects its proportionate share of
the "orphans' share" for this site. With respect to the D.L. Mud site, a former
property owner has already conducted remedial activities at the site under a
state agency agreement. To date, the Company has not been requested to share in
the remediation costs. The extent, if any, of any further necessary remedial
activity at, and the prospective PRPs and the Company's financial obligations
for, the D. L. Mud site has not been finally determined.
 
     The Company has received a request for information from the EPA regarding
the Lee Acres Landfill CERCLA site in New Mexico. The Company advised the EPA
that it was not able to locate any information indicating that it had used that
facility. The Company is investigating its potential connection, if any, to this
facility and is not able to estimate its share of costs, if any, for the site at
this time.
 
     On April 4, 1994, the Company received a request from the EPA for
information pursuant to Section 104(a) of CERCLA and a letter ordering the
Company and seven other PRPs to negotiate with the EPA regarding implementation
of a remedial plan for a site located in Sante Fe Springs, California. The
Company owned the property on which the site is located from 1921 to 1932. After
the Company sold the property, hazardous wastes were allegedly disposed there by
a third party who operated a disposal site. The EPA estimates that the total
past and future costs for remediation will approximate $9 million. The Company
believes that it has valid defenses to liability. While it is still
investigating its exposure, if any, for the remedial costs, the Company does not
believe that any such costs would be material.
 
     Air Emissions.  The operations of the Company, including its operations in
the San Joaquin Valley, are subject to local, state and federal regulations for
the control of emissions from sources of air pollution. Legal and regulatory
requirements in this area are increasing, and there can be no assurance that
significant costs and liabilities will not be incurred in the future as a result
of new regulatory developments. In particular, the 1990 Clean Air Act Amendments
will impose additional requirements that may affect the Company's operations,
including permitting of existing sources and control of hazardous air
pollutants. However, it is impossible to predict accurately the effects, if any,
of the Clean Air Act Amendments on the Company at this time. The Company has
been and may in the future be subject to administrative enforcement actions for
failure to comply strictly with air regulations or permits. These administrative
actions are generally resolved by payment of a monetary penalty and correction
of any identified deficiencies. Alternatively, regulatory agencies may require
the Company to forego construction or operation of certain air emission sources.
 
     Other.  The Company is subject to the requirements of the federal
Occupational Safety and Health Act ("OSHA") and comparable state statutes. The
OSHA hazard communication standard, the EPA community right-to-know regulations
under Title III of the federal Superfund Amendment and Reauthorization Act and
similar state statutes (such as California Proposition 65) require the Company
to organize information about hazardous materials used or produced in its
operations. Certain of this information must be provided to employees, state and
local governmental authorities and local citizens. The Company's facilities in
California are also subject to California Proposition 65, which was adopted in
1986 to address discharges and releases of, or exposures to, toxic chemicals in
the environment. Proposition 65 makes it illegal to knowingly discharge a listed
chemical if the chemical will pass (or probably will pass) into any source of
drinking water. It also prohibits companies from knowingly and intentionally
exposing any
 
                                       45
<PAGE>   160
 
individual to such chemicals through ingestion, inhalation or other exposure
pathways without first giving a clear and reasonable warning.
 
     Although generally less stringent, the Company's foreign operations are
subject to similar foreign laws respecting environmental and worker safety
matters.
 
     Insurance Coverage Maintained with Respect to Operations
 
     The Company maintains insurance policies covering its operations in amounts
and areas of coverage normal for a company of its size in the oil and gas
exploration and production industry. These coverages include, but are not
limited to, workers' compensation, employers' liability, automotive liability
and general liability. In addition, an umbrella liability and operator's extra
expense policies are maintained. All such insurance is subject to normal
deductible levels. The Company does not insure against all risks associated with
its business either because insurance is not available or because it has elected
not to insure due to prohibitive premium costs.
 
     Employees
 
     As of December 31, 1993, the Company had approximately 777 employees, 210
of whom were covered by a collective bargaining agreement which expires on
January 31, 1996. The Company believes that its relations with its employees are
satisfactory.
 
     Legal Proceedings
 
     The Company, its subsidiaries and other related companies are named
defendants in several lawsuits and named parties in certain governmental
proceedings arising in the ordinary course of business. For a description of
certain proceedings in which the Company is involved, see "--Environmental
Regulation." While the outcome of lawsuits or other proceedings against the
Company cannot be predicted with certainty, management does not expect these
matters to have a material adverse effect on the financial position or results
of operations of the Company.
 
                                       46
<PAGE>   161
 
                                   MANAGEMENT
 
DIRECTORS AND EXECUTIVE OFFICERS
 
     The current directors and executive officers of the Company and their ages
(as of January 1, 1994) and positions are listed below.
 
<TABLE>
<CAPTION>
              NAME                   AGE                         POSITION
- ---------------------------------    ---     -------------------------------------------------
<S>                                  <C>     <C>
James L. Payne...................    56      Chairman of the Board,
                                             President and Chief Executive Officer
Hugh L. Boyt.....................    48      Senior Vice President--Production
Jerry L. Bridwell................    50      Senior Vice President--Exploration and Land
Keith P. Hensler.................    62      Senior Vice President--Marketing
Richard B. Bonneville............    51      Vice President--Planning and Administration
E. Everett Deschner..............    53      Vice President--Reservoir Engineering and
                                             Evaluation
C. Ed Hall.......................    51      Vice President--Public Affairs
Charles G. Hain, Jr..............    47      Vice President--Employee Relations
David L. Hicks...................    44      Vice President--Law and General Counsel
Michael J. Rosinski..............    48      Vice President and Chief Financial Officer
John R. Womack...................    55      Vice President--Business Development
Rod F. Dammeyer..................    53      Director
Marc J. Shapiro..................    47      Director
William E. Greehey...............    57      Director
Robert F. Vagt...................    47      Director
Melvyn N. Klein..................    52      Director
Robert D. Krebs..................    51      Director
David M. Schulte.................    47      Director
Allan V. Martini.................    66      Director
Michael A. Morphy................    61      Director
Kathryn D. Wriston...............    55      Director
Reuben F. Richards...............    64      Director
</TABLE>
 
     The business experience of the above officers and directors for the past
five years is described below. Unless otherwise stated, all offices were held
with Santa Fe Energy Company prior to its merger with the Company. Each
executive officer holds office until his successor is elected or appointed or
until his earlier death, resignation or removal.
 
     James L. Payne has served as a Director since 1986 and has been Chairman of
the Board, President and Chief Executive Officer of the Company since June 1990.
Mr. Payne was President of Santa Fe Energy Company from January 1986 to January
1990 when he became President of the Company. From 1982 to January 1986 Mr.
Payne was Senior Vice President--Exploration and Land of Santa Fe Energy
Company. Mr. Payne is also a director of Pool Energy Services Co. (oilfield
services) and Hadson (natural gas transportation and marketing).
 
     Hugh L. Boyt has been Senior Vice President--Production since March 1,
1990. From 1989 until March 1990, Mr. Boyt served as Corporate Production
Manager. From 1983, when Mr. Boyt joined the Company, until 1989 he served as
District Production Manager--Permian Basin.
 
     Jerry L. Bridwell has been Senior Vice President--Exploration and Land
since 1986. Mr. Bridwell served in various other capacities, including Vice
President--Exploration, Central Division, since joining the Company in 1974.
 
     Keith P. Hensler has been Senior Vice President--Marketing since January
1990. From 1980, when Mr. Hensler joined the Company, until January 1990, he
served as Vice President--Marketing. Mr. Hensler is also Senior Vice President
of Energy Products.
 
                                       47
<PAGE>   162
 
     Richard B. Bonneville has been Vice President--Planning and Administration
since 1988. Prior to such time Mr. Bonneville served as Secretary of Santa Fe
Pacific Corporation ("SFP").
 
     E. Everett Deschner has been Vice President--Reservoir Engineering and
Evaluation since April 1990. From 1982, when Mr. Deschner joined the Company,
until 1990, he served as Manager-- Engineering and Evaluation.
 
     C. Ed Hall has been Vice President--Public Affairs since March 1991. Prior
to such time Mr. Hall served as Director--Public Affairs since joining the
Company in 1984.
 
     Charles G. Hain, Jr. has been Vice President--Employee Relations since
1988. From 1981, when Mr. Hain joined the Company, until 1988, Mr. Hain served
as Director--Employee Relations.
 
     David L. Hicks has been Vice President--Law and General Counsel since March
1991. From 1988 until March 1991, Mr. Hicks was General Counsel and prior to
that time was General Attorney for SFP.
 
     Michael J. Rosinski has been Vice President and Chief Financial Officer
since September 1992. Prior to joining the Company, Mr. Rosinski was with
Tenneco Inc. and its subsidiaries for 24 years. From 1988 until 1990, Mr.
Rosinski served as Deputy Project Executive for the Colombian Crude Oil Pipeline
Project and from 1990 until August 1992 he was Executive Director of Investor
Relations. Mr. Rosinski is also a director of Hadson (natural gas transportation
and marketing).
 
     John R. Womack has been Vice President--Business Development since 1987.
From 1982, when Mr. Womack joined the Company, until 1987, Mr. Womack served as
Vice President--Land.
 
   
     Rod F. Dammeyer has served as a Director since 1990. Mr. Dammeyer has been
President and a director since 1985 and Chief Executive Officer since 1993 of
Itel Corporation (holding company involved primarily in distribution of wiring
systems products). Mr. Dammeyer is also a director of Q-Tel S.A., Servicios
Financieros Quadrum, S.A., Lomas Financial Corporation, Jacor Communications,
Inc., Revco D.S., Inc., Capsure Holdings Corp. and the Vigoro Corporation and a
trustee of Van Kampen Merritt Closed-End Mutual Funds. In addition, Mr. Dammeyer
is President, Chief Executive Officer and a director of Great American
Management and Investment, Inc.
    
 
     Marc J. Shapiro has served as a Director since 1990. Mr. Shapiro has been
Chairman, President and Chief Executive Officer of Texas Commerce Bancshares,
Inc. (banking) since January 1994. He has been President and Chief Executive
Officer of Texas Commerce Bancshares, Inc. since December 1989, Chairman and
Chief Executive Officer of Texas Commerce Bank National Association since 1987
and a member of the Management Committee of Chemical Banking Corporation since
December 1991. Mr. Shapiro was a member of the Office of the Chairman of
Chemical Banking Corporation from August 1990 to December 1991, Vice Chairman of
Texas Commerce Bancshares, Inc. from 1982 to 1989, and Vice Chairman of Texas
Commerce Bank National Association from 1982 to 1987. Mr. Shapiro is also a
director of Browning-Ferris Industries and a trustee of Weingarten Realty
Investors.
 
     William F. Greehey has served as a Director since 1991. Mr. Greehey has
been Chairman of the Board, Chief Executive Officer and director of Valero
Energy Corporation (refining and marketing, gas transmission and processing)
since 1983. Mr. Greehey is also a director of Weatherford International.
 
     Robert F. Vagt has served as a Director since 1992. Mr. Vagt has been
President, Chief Executive Officer and director of Global Natural Resources Inc.
(oil and gas exploration and production) since May 1992; President and Chief
Operating Officer of Adobe (oil and gas exploration and production) from
November 1990 to May 1992; Executive Vice President of Adobe from August 1987 to
October 1990; and Senior Vice President of Adobe from October 1985 to August
1987. Mr. Vagt is also a director of First Albany Corporation (brokerage firm).
 
     Melvyn N. Klein has served as a Director since February 1993, when he was
elected to fill the vacancy created by the resignation of L.G. Dodd. Mr. Klein
is an Attorney and Counselor at Law, private investor and the sole stockholder
of a general partner in GKH Partners, L.P. Mr. Klein is also a director of Itel
Corporation, American Medical Holdings, Inc. (hospital ownership and
management), Bayou Steel
 
                                       48
<PAGE>   163
 
Corporation (specialty steel manufacturer) and Savoy Pictures Entertainment,
Inc. (distributor of motion pictures).
 
     Robert D. Krebs has served as a Director since 1985. Mr. Krebs has been
Chairman, President and Chief Executive Officer of SFP since 1988. Prior to such
time, Mr. Krebs was President and Chief Operating Officer of SFP. Mr. Krebs is
also a director of SFP, Catellus Development Corporation, the Atchison, Topeka
and Santa Fe Railway Company, Santa Fe Pacific Pipelines, Inc., Phelps Dodge
Corporation and Northern Trust Corporation.
 
     David M. Schulte has served as a Director since February 1994. Mr. Schulte
has been, for the past five years, Managing Partner of Chilmark Partners, L.P.
(investments) and since July 1990, General Partner of ZC Limited Partnership,
the General Partner of Zell/Chilmark Fund, L.P. (investments). Mr. Schulte is
also a director of Carter Hawley Hale Stores, Inc., Revco D.S., Inc., Sealy
Corporation and Jacor Communications, Inc.
 
     Allan V. Martini has served as a Director since 1990. Mr. Martini retired
as Vice President Exploration/Production and director of Chevron Corporation
(petroleum operations) in August 1988. Mr. Martini served in that position from
July 1986 until his retirement.
 
     Michael A. Morphy has served as a Director since 1990. Mr. Morphy has been,
for the past five years, retired Chairman and Chief Executive Officer of
California Portland Cement Company. Mr. Morphy is also a director of Cyprus Amax
Minerals Co. and SFP.
 
     Kathryn D. Wriston has served as a Director since 1990. Ms. Wriston has
been, for the past five years, director of various corporations and
organizations, including Northwestern Mutual Life Insurance Company and a
Trustee of the Financial Accounting Foundation.
 
     Reuben F. Richards has served as a Director since 1992. Mr. Richards has
been Chairman of the Board of Terra Industries Inc. (agribusiness) since
December 1982; Chief Executive Officer of Terra Industries Inc. from December
1982 to May 1991 and President of Terra Industries Inc. from July 1983 to May
1991; Chairman of the Board of Engelhard Corporation (specialty chemicals and
engineered materials) since May 1985; Chairman of the Board of Minorco (U.S.A.)
Inc. ("Minorco (USA)") since May 1990 and Chief Executive Officer and President
of Minorco (USA) since February 1994. Mr. Richards is also a director of Ecolab,
Inc. (cleaning and sanitizing products), Potlatch Corporation (forest products),
and Minorco.
 
                                       49
<PAGE>   164
 
                          DESCRIPTION OF CAPITAL STOCK
 
AUTHORIZED AND OUTSTANDING CAPITAL STOCK
 
   
     At the date hereof, the authorized capital stock of the Company is
250,000,000 shares, consisting of 200,000,000 shares of Common Stock, par value
$0.01 per share, and 50,000,000 shares of Preferred Stock, par value $0.01 per
share ("Preferred Stock"), of which 5,000,000 have been designated as
Convertible Preferred Stock, Series 7%, and of which up to 12,305,000 will be
designated as DECS to be issued pursuant to this Offering. The following summary
of the Company's Common Stock and Preferred Stock, including the Convertible
Preferred Stock, Series 7%, is qualified in its entirety by reference to the
Company's Restated Certificate of Incorporation ("Charter"), Bylaws and the
Certificate of Designations, Rights and Preferences for the Convertible
Preferred Stock, Series 7%, copies of which are included as exhibits to the
Registration Statement of which this Prospectus is a part. For a description of
the DECS, see "Description of the DECS."
    
 
COMMON STOCK
 
     Restrictions on Dividends
 
   
     The holders of the Company's Common Stock are entitled to dividends in such
amounts and at such times as may be declared by the Company's Board of Directors
out of funds legally available therefor. Certain of the Company's existing
credit agreements restrict the payment of dividends to the holders of Common
Stock. The most restrictive of such agreements is the Senior Notes, which
contain a dividend restriction that limits aggregate dividends to $45 million
plus 100% (or minus 100% in the case of a deficit) of the cumulative
consolidated net income of Santa Fe and its subsidiaries from April 1, 1990,
subject to other financial conditions. For a description of the aggregate amount
that the Company could pay as a dividend on its capital stock, see "Management's
Discussion and Analysis of Financial Condition and Results of
Operations--Liquidity and Capital Resources." In addition, the terms of the
Convertible Preferred Stock, Series 7%, restrict and the terms of the DECS will
restrict any dividend payment by the Company to holders of Common Stock unless
all dividends on the Convertible Preferred Stock, Series 7%, and the DECS for
all past quarterly dividend periods shall have been paid, or declared and a sum
sufficient for the payment thereof set apart. At March 31, 1994, under its most
restrictive debt covenant the Company had the ability to pay up to $18.4 million
in dividends on its outstanding capital stock. After giving effect as of March
31, 1994 to consummation of this Offering and the Concurrent Debenture Offering
and the application of the net proceeds thereof as described in "Use of
Proceeds," under the Company's most restrictive covenant the Company would have
had the ability to pay up to only $50.0 million in dividends on its Common Stock
(pursuant to such covenant, dividends on the Convertible Preferred Stock, Series
7%, and the DECS are exempted from, but will reduce, the amount available for
the payment of dividends on Common Stock). The amount permitted under these
covenants to be used to pay dividends will vary over time depending, among other
things, on the Company's earnings and any issuances of capital stock.
    
 
     Other
 
     Holders of the Common Stock are entitled to one vote per share for the
election of directors and other corporate matters. There are no cumulative
voting rights, meaning that the holders of a majority of the shares voting for
the election of directors can elect all the directors if they choose to do so.
 
     The Company's Board of Directors is divided into three classes, each of
which consists of approximately one-third of the total number of directors
constituting the Board. Directors are elected to three-year terms, and one class
of directors is elected each year. The Company's Bylaws include provisions that
establish procedures for director nominations by stockholders and for the
presentation by stockholders of matters to be considered at stockholder
meetings.
 
     In addition, upon the failure to pay dividends on the Convertible Preferred
Stock, Series 7%, and, assuming consummation of the offering being made hereby,
the DECS for four quarterly dividend periods,
 
                                       50
<PAGE>   165
 
   
the number of the Company's directors will be increased by two, and the holders
of the Convertible Preferred Stock, Series 7%, and the DECS at the time
outstanding, voting together as a class with all other holders of affected
classes or series, if any, of Company parity capital stock, upon which like
voting rights have been conferred and are exercisable, will be entitled to elect
said two directors. See "--Description of Convertible Preferred Stock, Series
7%--Voting Rights."
    
 
   
     Upon liquidation or dissolution, holders of Common Stock are entitled to
share ratably in all net assets available for distribution to stockholders after
payment of any liquidation preferences to holders of Convertible Preferred
Stock, Series 7%, and, assuming consummation of the Offering being made hereby,
holders of the DECS. The Common Stock carries no preemptive rights. All
outstanding shares of Common Stock are duly authorized, validly issued,
fully-paid and nonassessable.
    
 
     As of March 14, 1994, there were 89,936,650 shares of Common Stock issued
and outstanding held by approximately 57,755 shareholders of record.
 
PREFERRED STOCK
 
   
     The Company's Board of Directors is authorized to issue from time to time,
without stockholder authorization, in one or more designated series, shares of
Preferred Stock with such dividend, redemption, conversion and exchange
provisions as are provided in the particular series. As of the date hereof,
5,000,000 shares of Preferred Stock were designated as the Convertible Preferred
Stock, Series 7%, all of which were outstanding as of March 1, 1994. The form of
the Certificate of Designations, Rights and Preferences for the Convertible
Preferred Stock, Series 7%, is included as an exhibit to the Registration
Statement of which this Prospectus is a part and the summary of the terms of
such shares contained herein is qualified in its entirety by reference thereto
and is incorporated herein.
    
 
   
     In connection with this Offering, the Company's Board of Directors
authorized the creation of the DECS. The form of the Certificate of Designations
for the DECS is included as an exhibit to the Registration Statement of which
this Prospectus is a part and the summary of the terms of such shares contained
herein is qualified in its entirety by reference thereto and is incorporated
herein. For a description of the terms of the DECS, see "Description of the
DECS."
    
 
TAKEOVER PROVISIONS
 
     Section 203 of the Delaware General Corporation Law
 
     Section 203 of the Delaware Act ("Section 203") restricts certain
transactions between a corporation organized under Delaware law (or its
majority-owned subsidiaries) and any person holding 15% or more of the
corporation's outstanding voting stock, together with the affiliates or
associates of such person (an "Interested Stockholder"). Section 203 prevents,
for a period of three years following the date that a person becomes an
Interested Stockholder, the following types of transactions between the
corporation and the Interested Stockholder (unless certain conditions, described
below, are met): (a) mergers or consolidations, (b) sales, leases, exchanges or
other transfers of 10% or more of the aggregate assets of the corporation, (c)
issuances or transfers by the corporation of any stock of the corporation which
would have the effect of increasing the Interested Stockholder's proportionate
share of the stock of any class or series of the corporation, (d) any other
transaction which has the effect of increasing the proportionate share of the
stock of any class or series of the corporation which is owned by the Interested
Stockholder, and (e) receipt by the Interested Stockholder of the benefit
(except proportionately as a stockholder) of loans, advances, guarantees,
pledges or other financial benefits provided by the corporation.
 
     The three-year ban does not apply if either the proposed transaction or the
transaction by which the Interested Stockholder became an Interested Stockholder
is approved by the board of directors of the corporation prior to the date such
stockholder becomes an Interested Stockholder. Additionally, an Interested
Stockholder may avoid the statutory restriction if, upon the consummation of the
transaction whereby such stockholder becomes an Interested Stockholder, the
stockholder owns at least 85% of the
 
                                       51
<PAGE>   166
 
outstanding voting stock of the corporation without regard to those shares owned
by the corporation's officers and directors or certain employee stock plans.
Business combinations are also permitted within the three-year period if
approved by the board of directors and authorized at an annual or special
meeting of stockholders, by the holders of at least 66 2/3% of the outstanding
voting stock not owned by the Interested Stockholder. In addition, any
transaction is exempt from the statutory ban if it is proposed at a time when
the corporation has proposed, and a majority of certain continuing directors of
the corporation have approved, a transaction with a party who is not an
Interested Stockholder of the corporation (or who becomes such with board
approval) if the proposed transaction involves (a) certain mergers or
consolidations involving the corporation, (b) a sale or other transfer of over
50% of the aggregate assets of the corporation, or (c) a tender or exchange
offer for 50% or more of the outstanding voting stock of the corporation.
 
     Prior to the effective date of Section 203, a corporation, by action of its
board of directors, had the option of electing to exclude itself from the
coverage of Section 203. Since the effective date of such section, a corporation
may, at its option, exclude itself from the coverage of Section 203 by amending
its certificate of incorporation or bylaws by action of its shareholders to
exempt itself from coverage, provided that such bylaw or charter amendment shall
not become effective until 12 months after the date it is adopted. The Company
has not adopted such a charter or bylaw amendment.
 
     No Action by Written Consent
 
   
     The Charter prohibits the taking of any action by written stockholder
consent in lieu of a meeting and the amendment of the Charter to repeal or alter
such provision without the affirmative vote of the holders of at least 80% of
the voting capital stock of the Company.
    
 
     Rights Plan
 
     The Charter provides that the Company may, by action of its Board of
Directors, adopt a rights plan. The Company does not currently have a rights
plan in effect.
 
     The foregoing provisions in the Charter, the existence of authorized but
unissued capital stock and the application of Section 203 to stockholders of the
Company may tend to deter unfriendly offers or other efforts to obtain control
of the Company that are not approved by the Company's Board of Directors and
thereby deprive the Company's stockholders of opportunities to sell their shares
of Common Stock at prices higher than prevailing market prices.
 
DESCRIPTION OF CONVERTIBLE PREFERRED STOCK, SERIES 7%
 
     General
 
     The Convertible Preferred Stock, Series 7%, has a liquidation preference of
$20 per share plus accrued and unpaid dividends and ranks prior to all shares of
the Common Stock as to payment of dividends and as to distributions of assets
upon liquidation, dissolution or winding up of the Company. Holders of the
Convertible Preferred Stock, Series 7%, have no preemptive rights.
 
   
     The transfer agent for the Convertible Preferred Stock, Series 7%, is First
Chicago Trust Company of New York, which also acts as transfer agent and
registrar for the Common Stock, whose address is 525 Washington Boulevard, Suite
4690, Jersey City, New Jersey 07310.
    
 
     Dividends
 
     Holders of Convertible Preferred Stock, Series 7%, are entitled to receive,
prior to the payment of dividends on shares of Common Stock, cumulative cash
dividends at an annual rate equivalent to $1.40 per share, when, as and if
declared by the Company's Board of Directors out of funds legally available
therefor, payable quarterly on March 1, June 1, September 1 and December 1.
 
                                       52
<PAGE>   167
 
     If at any time any dividend on any outstanding shares of capital stock of
Santa Fe, which, by the terms of the Charter or of the instrument by which the
Company's Board of Directors shall fix, shall be senior to the Convertible
Preferred Stock, Series 7%, in respect of the right to receive dividends, then
no dividend shall be paid or declared and set apart for payment on the
Convertible Preferred Stock, Series 7%, unless and until all accrued and unpaid
dividends with respect to such outstanding senior capital stock shall have been
paid or declared and a sum sufficient for the payment thereof set apart for
payment. No full dividend shall be paid or declared and set apart for payment on
the Convertible Preferred Stock, Series 7%, for any dividend period unless full
cumulative dividends have been or contemporaneously are paid or declared and a
sum sufficient for the payment thereof set apart for such payment on all shares
of outstanding Santa Fe capital stock which, by the terms of the Charter or of
the instrument by which the Company's Board of Directors shall fix, shall be
entitled to share ratably with the Convertible Preferred Stock, Series 7%, in
the payment of full dividends, for all dividend periods terminating on or prior
to the end of such dividend period. If this Offering is consummated, the DECS
will be entitled to share ratably with the Convertible Preferred Stock, Series
7%, in the payment of dividends. When dividends are not paid in full as
aforesaid on all shares of such outstanding parity capital stock and the
Convertible Preferred Stock, Series 7%, any dividend payments on the Convertible
Preferred Stock, Series 7%, including accumulated dividends, if any, will be
paid to the holders of the shares of the Convertible Preferred Stock, Series 7%,
and any such outstanding parity capital stock (including the DECS) ratably in
proportion to the respective sums which such holders would receive if all
dividends accumulated thereon to the date of payment were declared and paid in
full. Accumulated dividends will not bear interest.
 
     So long as any shares of the Convertible Preferred Stock, Series 7%, are
outstanding, in no event will any dividends, other than dividends payable solely
in shares of junior stock, be paid or declared and set apart for payment, nor
will any distribution be made, on any class of stock ranking subordinate to the
Convertible Preferred Stock, Series 7%, unless all accrued and unpaid dividends
on the Convertible Preferred Stock, Series 7%, for all past quarterly dividend
periods shall have been paid, or declared and a sum sufficient for the payment
thereof set apart.
 
     The amount of dividends payable per share of Convertible Preferred Stock,
Series 7%, for each full quarterly dividend period will be computed by dividing
the annual dividend rate by four.
 
     Voting Rights
 
     The holders of Convertible Preferred Stock, Series 7%, will have no voting
rights except as set forth below or as otherwise may be required by the Delaware
Act. On any matters on which the holders of the Convertible Preferred Stock,
Series 7%, will be entitled to vote, they will be entitled to one vote for each
share held.
 
     If and when four quarterly dividends payable on the Convertible Preferred
Stock, Series 7%, or any capital stock of the Company ranking on a parity with
the Convertible Preferred Stock, Series 7%, in respect of dividend rights and
rights to share in the Company's liquidation upon dissolution or winding up of
the Company ("Parity Stock"), whether or not consecutive, shall be unpaid in
whole or in part, the number of directors will be increased by two, and the
holders of the Convertible Preferred Stock, Series 7%, at the time outstanding,
voting separately as a class with all holders of Parity Stock (which will
include the DECS) upon which like voting rights have been conferred and are
exercisable, will be entitled to elect said two directors. The right to elect
said two directors will begin at any meeting of stockholders of the Company at
which directors are to be elected held during the period such dividends remain
in arrears and will continue until said arrearages in dividends shall have been
paid or declared and a sum sufficient for the payment thereof set apart for
payment, at which time the right of the holders of shares of the Convertible
Preferred Stock, Series 7%, to elect said two directors will cease and the terms
of said two directors then in office will expire and terminate.
 
     The affirmative vote of the holders of at least two-thirds of the shares of
Convertible Preferred Stock, Series 7%, at the time outstanding, voting
separately as a class, is necessary to amend, alter or repeal
 
                                       53
<PAGE>   168
 
   
any provision of the Certificate of Designations, Rights and Preferences for the
Convertible Preferred Stock, Series 7%, so as to affect adversely the relative
rights, preferences, qualifications, limitations or restrictions of holders of
the Convertible Preferred Stock, Series 7%.
    
 
     Conversion Rights
 
   
     Voluntary Conversion.  The holder of any shares of Convertible Preferred
Stock, Series 7%, has the right, at its option and at any time, to convert any
or all of such shares into Common Stock at the initial rate of 1.3913 shares of
Common Stock for each share of Convertible Preferred Stock, Series 7% (subject
to adjustments as described below). No payment or adjustment shall be made upon
any conversion of any share of Convertible Preferred Stock, Series 7%, on
account of any accrued and unpaid dividends on the shares surrendered for
conversion prior to the record date for the determination of holders entitled to
such dividends or on account of any dividends on the Common Stock issued upon
conversion subsequent to the record date established by the Company for the
determination of holders of Common Stock entitled to such dividend.
    
 
   
     Mandatory Conversion.  The Company may, at its option and at any time on or
after May 19, 1997, during the 10-day period following a "Special Conversion
Event" (defined below), convert all outstanding shares of Convertible Preferred
Stock, Series 7%, together with all unpaid dividends thereon accrued on a pro
rata basis through the date of such conversion, into fully paid and
non-assessable shares of Common Stock. A "Special Conversion Event" shall be
deemed to have occurred at, and shall be defined as, such time(s) as the average
of the daily closing prices for a share of Common Stock for 20 of 30 consecutive
trading days equals or exceeds 125% of the quotient of (x) $20.00 divided by (y)
the then applicable conversion rate. The number of shares of Common Stock into
which each outstanding share of Convertible Preferred Stock, Series 7%, shall be
converted shall equal the sum of (i) the then current conversion rate, plus (ii)
the number determined by dividing the amount of such accrued and unpaid
dividends by a fraction, the numerator of which is $20.00 and the denominator of
which is the average of such daily closing prices.
    
 
     No fractional shares of Common Stock will be issued upon conversion but, in
lieu thereof, an appropriate amount will be paid in cash by the Company in an
amount equal to the same fraction of the market price per share of the Common
Stock, as determined by the Company's Board of Directors, on the business day
prior to the date of the conversion.
 
     The conversion rate of the Convertible Preferred Stock, Series 7%, is
subject to adjustment in certain events. No adjustment of the conversion rate
will be required to be made until cumulative adjustments amount to 1% or more of
the conversion rate as last adjusted; however, any adjustment not made will be
carried forward.
 
     Special Redemption Right
 
     Upon the occurrence of the first Ownership Change (as defined below) of the
Company, each holder of shares of Convertible Preferred Stock, Series 7%, will
have the right, at the holder's option, at any time within 45 days after notice
of such Ownership Change is mailed, to elect to have all of such holder's shares
of Convertible Preferred Stock, Series 7%, redeemed for an amount equal to the
sum of (x) $20.00 for each share plus (y) accrued and unpaid dividends thereon
up to the redemption date. An "Ownership Change" will be deemed to have occurred
at, and is defined as, such time as any person or group, together with any
affiliates or associates, becomes the beneficial owner of 50% or more of the
outstanding Common Stock.
 
     Liquidation Preference
 
     Subject to the prior rights of the Company's creditors, secured and
unsecured, and the prior rights of holders of the Company's capital stock
ranking senior to the Convertible Preferred Stock, Series 7%, if any, in the
event of any liquidation, dissolution or winding up of the Company, then, before
any distribution or payment may be made to the holders of shares of any of the
Company's capital stock
 
                                       54
<PAGE>   169
 
ranking subordinate to the Convertible Preferred Stock, Series 7%, the holders
of shares of the Convertible Preferred Stock, Series 7%, will be entitled to be
paid in full the respective amount per share of Convertible Preferred Stock,
Series 7%, equal to the sum of (x) dividends accrued and unpaid thereon to the
date of final dissolution to such holders, whether or not declared, plus (y)
$20.00; provided that neither the consolidation, the merger or other business
combination of the Company with or into another corporation, nor sale or
transfer of all or part of the assets of the Company for cash, securities or
other property will be deemed a liquidation, dissolution or winding up of the
Company for purposes of this sentence. In any event, the right of holders of
Convertible Preferred Stock, Series 7%, to the foregoing liquidation preference
will accrue to such holders only if the Company's payments with respect to the
liquidation preferences of the holders of outstanding capital stock of the
Company ranking senior to the Convertible Preferred Stock, Series 7%, if any,
are fully met. If the assets of the Company available for distribution to the
holders of the shares of the Convertible Preferred Stock, Series 7%, shall not
be sufficient to make the payment thereon required to be made in full, such
assets will be distributed to the holders of the shares of the Convertible
Preferred Stock, Series 7%, and any Parity Stock (such as the DECS) ratably in
proportion to the full amounts to which they would otherwise be entitled. After
payment is made in full to the holders of the shares of the Convertible
Preferred Stock, Series 7%, the remaining assets and funds of the Company will
be distributed among the holders of all shares of stock ranking subordinate to
the Convertible Preferred Stock, Series 7%, according to their respective
rights.
 
                            DESCRIPTION OF THE DECS
 
   
     The following information is a summary of the material terms of the
Certificate of Designations with respect to the DECS ("Certificate of
Designations"), a copy of which has been filed as an exhibit to the Registration
Statement of which this Prospectus is a part, and such summary is subject to and
qualified in its entirety by reference to the Company's Charter and the
Certificate of Designations.
    
 
   
     Ranking.  The DECS will rank prior to the Common Stock both as to payment
of dividends and distribution of assets upon liquidation and will rank pari
passu with the Company's outstanding Convertible Preferred Stock, Series 7%. In
addition, the DECS will rank on a parity with any Preferred Stock issued in the
future by the Company that by its terms ranks pari passu with the DECS.
    
 
     Dividends.  The holders of DECS are entitled to receive, when, as and if
dividends on the DECS are declared by the Board of Directors of the Company out
of funds legally available therefor, cumulative preferential dividends from the
issue date of the DECS, accruing at the rate per share of $          per annum
or $          per quarter for each DECS, payable quarterly in arrears on the
first day of each January, April, July and October, or, if any such date is not
a business day, on the next succeeding business day; provided, however, that
with respect to any dividend period during which a redemption occurs, the
Company may, at its option, declare accrued dividends to, and pay such dividends
on, the date fixed for redemption, in which case such dividends would be payable
in cash to the holders of DECS as of the record date for such dividend payment
and would not be included in the calculation of the related Call Price as set
forth below. The first dividend payment will be for the period from the issue
date of the DECS to and including June 30, 1994 and will be payable on July 1,
1994. Dividends (or amounts equal to accrued and unpaid dividends) payable on
the DECS for any period shorter than a quarterly dividend period will be
computed on the basis of a 360-day year of twelve 30-day months. Dividends will
be payable to holders of record of the DECS as they appear on the stock register
of the Company, on such record dates, not less than 15 nor more than 60 days
preceding the payment date thereof, as shall be fixed by the Board of Directors.
Dividends are payable in cash except in connection with certain redemptions by
the Company.
 
   
     Dividends on the DECS will accrue whether or not the Company has earnings,
whether or not there are funds legally available for the payment of such
dividends and whether or not such dividends are declared. Dividends accumulate
to the extent they are not paid on the dividend payment date for the quarter for
which they accrue. Accumulated and unpaid dividends will not bear interest.
    
 
                                       55
<PAGE>   170
 
     Unless full cumulative dividends with respect to the DECS shall have been
paid or contemporaneously are declared and paid through the most recent dividend
payment date, then, whether or not the Mandatory Conversion Date has occurred,
(a) no full cash dividend shall be declared or paid or set aside for payment or
other distribution declared or made on any shares of the Company ranking on a
parity as to dividends with the DECS, (b) no dividend or other distribution
(other than a dividend or distribution paid in shares of, or warrants, rights or
options exercisable for or convertible into, shares of Common Stock or in any
other stock of the Company ranking junior to the DECS as to dividends and upon
liquidation) shall be declared or paid or set aside for payment or other
distribution declared or made upon the Common Stock or upon any other shares of
the Company ranking junior to the DECS as to dividends and (c) no Common Stock
or any other shares of the Company ranking junior to or on a parity with the
DECS as to dividends or upon liquidation shall be redeemed, purchased or
otherwise acquired for any consideration (or any moneys be paid to or made
available for a sinking fund for the redemption of any shares of any such series
or class) by the Company, except by conversion into or exchange for shares of
the Company ranking junior to the DECS as to dividends and upon liquidation.
When dividends which are payable in cash have not been paid or set aside in full
with respect to the DECS and any other shares of the Company ranking on a parity
as to dividends with the DECS, all dividends declared with respect to the DECS
and any other shares of the Company ranking on a parity as to dividends with the
DECS shall be declared pro rata so that the amount of dividends declared per
share on the DECS and such other shares shall in all cases bear to each other
the same ratio that at the time of declaration accrued and payable but unpaid
dividends per share on the DECS and such other shares bear to each other.
Holders of the DECS shall not be entitled to any dividends, whether payable in
cash, property or stock, in excess of full cumulative dividends, as herein
described.
 
     Mandatory Conversion of DECS.  On the Mandatory Conversion Date, each
outstanding DECS will convert automatically into shares of Common Stock at the
Common Equivalent Rate in effect on such date and the right to receive an amount
in cash equal to all accrued and unpaid dividends on such DECS (other than
dividends payable to a holder of record on a prior date) to the Mandatory
Conversion Date, whether or not declared, out of funds legally available for the
payment of dividends, subject to the right of the Company to redeem the DECS on
or after the Initial Redemption Date and prior to the Mandatory Conversion Date,
as described below, and subject to the conversion of the DECS at the option of
the holder at any time prior to the Mandatory Conversion Date. The Common
Equivalent Rate is initially one share of Common Stock for each DECS, and is
subject to adjustment as described below.
 
     Because the price of the Common Stock is subject to market fluctuations,
the value of the Common Stock received by a holder of DECS upon Mandatory
Conversion may be more or less than the amount paid for the DECS. Dividends will
cease to accrue on the Mandatory Conversion Date in respect of the DECS then
outstanding.
 
     Right to Redeem DECS.  The DECS are not redeemable by the Company prior to
the Initial Redemption Date. At any time and from time to time on or after the
Initial Redemption Date and prior to the Mandatory Conversion Date, the Company
may redeem the outstanding DECS, in whole or in part. Upon any such redemption,
each holder of DECS will receive, in exchange for each DECS so called, a number
of shares of Common Stock equal to the Call Price of the DECS in effect on the
date of redemption divided by the Current Market Price of the Common Stock
determined as of the date which is the trading day prior to the public
announcement of the call for redemption. The Call Price of each DECS is the sum
of (i) $       on and after the Initial Redemption Date through June 30, 1997,
$       on and after July 1, 1997 through September 30, 1997, $       on and
after October 1, 1997 through December 31, 1997, and $       on and after
January 1, 1998 until the Mandatory Conversion Date, and (ii) all accrued and
unpaid dividends thereon to the date fixed for redemption (other than dividends
payable to a holder of record as of a prior date). The public announcement of
any call for redemption shall be made prior to the mailing of the notice of such
call to holders of DECS as described below. Dividends will cease to accrue on
DECS on the date fixed for their redemption.
 
     The term "Current Market Price" per share of the Common Stock on any date
of determination means the lesser of (x) the average of the closing sale prices
of the Common Stock as reported on the
 
                                       56
<PAGE>   171
 
NYSE for the 15 consecutive trading days ending on and including such date of
determination and (y) the closing sale price of the Common Stock as reported on
the NYSE for such date of determination; provided, however, that, with respect
to any redemption of the DECS, if any event that results in an adjustment of the
Common Equivalent Rate occurs during the period beginning on the first day of
such 15-day period and ending on the applicable redemption date, the Current
Market Price as determined pursuant to the foregoing will be appropriately
adjusted to reflect the occurrence of such event.
 
     The opportunity for equity appreciation afforded by an investment in the
DECS is less substantial than the opportunity for equity appreciation afforded
by an investment in the Common Stock because the Company may, at its option,
redeem the DECS at any time on or after the Initial Redemption Date and prior to
the Mandatory Conversion Date, and may be expected to do so prior to the
Mandatory Conversion Date if the market price of the Common Stock exceeds the
Call Price. In such event, holders of the DECS will receive less than one share
of Common Stock for each DECS. However, because holders of DECS called for
redemption will have the option to surrender DECS for conversion at the
Conversion Price up to the close of business on the redemption date (and may be
expected to do so if the market price of the Common Stock exceeds the Conversion
Price), a holder that elects to convert will receive    of a share of Common
Stock for each DECS. Because the number of shares of Common Stock to be
delivered in payment of the Call Price will be determined on the basis of the
market price of the Common Stock prior to the announcement of the call, the
value per share of the shares of Common Stock to be delivered may be more or
less than the Call Price on the date of delivery.
 
     As a result of these provisions, holders of DECS would be expected to
realize no equity appreciation if the market price of one share of Common Stock
is below the Conversion Price, and less than all of such appreciation if the
market price of one share of Common Stock is above the Conversion Price. Holders
of DECS will realize the entire decline in equity value if the market price of
the Common Stock is less than the price paid for a DECS.
 
     Conversion at Option of Holder.  The DECS are convertible, in whole or in
part, at the option of the holders thereof, at any time prior to the Mandatory
Conversion Date, unless previously redeemed, into shares of Common Stock at a
rate of    of a share of Common Stock for each DECS (the "Optional Conversion
Rate") (equivalent to a Conversion Price of $          per share of Common
Stock), subject to adjustment as described below. The right to convert DECS
called for redemption will terminate at the close of business on the redemption
date.
 
     Conversion of DECS may be effected by delivering certificates evidencing
such DECS, together with written notice of conversion and a proper assignment of
such certificates to the Company or in blank, to the office or agency to be
maintained by the Company for that purpose (and, if applicable, payment of an
amount equal to the dividend payable on such shares), and otherwise in
accordance with conversion procedures established by the Company. Each
conversion shall be deemed to have been effected immediately prior to the close
of business on the date on which the foregoing requirements shall have been
satisfied. The conversion shall be at the Optional Conversion Rate in effect at
such time and on such date.
 
     Holders of DECS at the close of business on a record date for any payment
of dividends will be entitled to receive the dividend payable on such DECS on
the corresponding dividend payment date notwithstanding the conversion of such
DECS following such record date and prior to such dividend payment date.
However, DECS surrendered for conversion after the close of business on a record
date for any payment of dividends and before the opening of business on the next
succeeding dividend payment date (unless such DECS are subject to redemption on
a redemption date in that period) must be accompanied by payment of an amount
equal to the dividend thereon which is to be paid on such dividend payment date.
Except as provided above, the Company will make no payment of or allowance for
unpaid dividends, whether or not in arrears, on converted DECS or for dividends
or distributions on the shares of Common Stock issued upon such conversion.
 
     Conversion Adjustment.  The Common Equivalent Rate and the Optional
Conversion Rate are each subject to adjustment if the Company shall (i) pay a
dividend or make a distribution with respect to
 
                                       57
<PAGE>   172
 
Common Stock in shares of such stock, (ii) subdivide or split its outstanding
shares of Common Stock, (iii) combine its outstanding shares of Common Stock
into a smaller number of shares, (iv) issue by reclassification of its shares of
Common Stock any shares of common stock of the Company, (v) issue rights or
warrants to all holders of its Common Stock entitling them (for a period not
exceeding 45 days from the date of such issuance) to subscribe for or purchase
shares of Common Stock at a price per share less than the market price of the
Common Stock or (vi) pay a dividend or make a distribution to all holders of its
Common Stock in the form of evidences of its indebtedness, cash or other assets
(including capital stock of the Company other than Common Stock but excluding
any dividends or distributions referred to in clause (i) above or any cash
dividends other than "Extraordinary Cash Dividends" as defined below) or issue
to all holders of its Common Stock rights or warrants to subscribe for or
purchase any of its securities (other than those referred to in clause (v)
above). The Company will also be entitled (but shall not be required) to make
upward adjustments in the Common Equivalent Rate, the Optional Conversion Rate
and the Call Price, as it in its discretion shall determine to be advisable, in
order that any stock dividends, subdivision of shares, distribution of rights to
purchase stock or securities, or distribution of securities convertible into or
exchangeable for stock (or any transaction which could be treated as any of the
foregoing transactions pursuant to Section 305 of the Internal Revenue Code of
1986, as amended) hereafter made by the Company to its stockholders will not be
taxable. "Extraordinary Cash Distribution" means the portion of any cash
dividend or cash distribution on the Common Stock that, when added to all other
cash dividends and cash distributions on the Common Stock made during the
immediately preceding 12-month period (other than cash dividends and cash
distributions for which a prior adjustment to the Common Equivalent Rate and the
Optional Conversion Rate was previously made) exceeds, on a per share of Common
Stock basis, 10 percent of the average daily closing sales price of the Common
Stock over such 12-month period. All adjustments to the Common Equivalent Rate
and the Optional Conversion Rate will be calculated to the nearest 1/100th of a
share of Common Stock (or if there is not a nearest 1/100th of a share to the
next lower 1/100th of a share). No adjustment in the Common Equivalent Rate and
the Optional Conversion Rate shall be required unless such adjustment would
require an increase or decrease of at least one percent therein; provided,
however, that any adjustments which by reason of the foregoing are not required
to be made shall be carried forward and taken into account in any subsequent
adjustment.
 
     Whenever the Common Equivalent Rate and the Optional Conversion Rate are
adjusted as provided in the preceding paragraph, the Company will file with each
transfer agent for the DECS a certificate with respect to such adjustment, make
a prompt public announcement thereof and mail a notice to holders of the DECS
providing specified information with respect to such adjustment. At least 10
business days prior to certain specified actions that could result in certain
adjustments in the Common Equivalent Rate and the Optional Conversion Rate, the
Company will notify each holder of DECS concerning such proposed action.
 
     Adjustment for Consolidation or Merger.  In case of any consolidation or
merger to which the Company is a party (other than a merger or consolidation in
which the Company is the continuing corporation and in which the Common Stock
outstanding immediately prior to the merger or consolidation is not exchanged
for cash, securities or other property of the Company or another corporation) or
in case of any statutory exchange of securities with another corporation (other
than in connection with a merger or acquisition), each DECS shall, after
consummation of such transaction, be subject to (i) conversion at the option of
the holder into the kind and amount of securities, cash or other property
receivable upon consummation of such transaction by a holder of the number of
shares of Common Stock into which such DECS might have been converted
immediately prior to consummation of such transaction, (ii) conversion on the
Mandatory Conversion Date into the kind and amount of securities, cash or other
property receivable upon consummation of such transaction by a holder of the
number of shares of Common Stock into which such DECS would have been converted
if the conversion on the Mandatory Conversion Date had occurred immediately
prior to the date of consummation of such transaction and (iii) redemption on
any redemption date in exchange for the kind and amount of securities, cash or
other property receivable upon consummation of such transaction by a holder of
the number of shares of Common Stock that would have been issuable at the Call
Price in effect on such redemption date upon a redemption of such DECS
 
                                       58
<PAGE>   173
 
immediately prior to consummation of such transaction, assuming that, if the
earlier of the public announcement of such redemption or the commencement of the
mailing of notice of such redemption to holders of DECS (the "Notice Date") is
not prior to such transaction, the Notice Date had been the date of such
transactions; and assuming in each case that such holder of Common Stock failed
to exercise rights of election, if any, as to the kind or amount of securities,
cash or other property receivable upon consummation of such transaction
(provided that if the kind or amount of securities, cash or other property
receivable upon consummation of such transaction is not the same for each
non-electing share of Common Stock, then the kind and amount of securities, cash
or other property receivable upon consummation of such transaction for each
non-electing share shall be deemed to be the kind and amount so receivable per
share by a plurality of the non-electing shares). The kind and amount of
securities into which the DECS shall be convertible after consummation of such
transaction shall be subject to adjustment as described above under the caption
"Conversion Adjustments" following the date of consummation of such transaction.
The Company may not become a party to any such transaction unless the terms
thereof are consistent with the foregoing.
 
     Fractional Shares.  No fractional shares of Common Stock will be issued
upon redemption or conversion of the DECS. In lieu of any fractional share
otherwise issuable in respect of all DECS of any holder which are redeemed or
converted on any redemption date or upon Mandatory Conversion or any optional
conversion, such holder shall be entitled to receive an amount in cash equal to
the same fraction of the (i) Current Market Price in the case of redemption, or
(ii) Closing Price (as defined in the Certificate of Designations) of the Common
Stock determined (A) as of the fifth trading day immediately preceding the
Mandatory Conversion Date, in the case of Mandatory Conversion, or (B) as of the
second trading day immediately preceding the effective date of conversion, in
the case of an optional conversion by a holder.
 
     Notice to Holders of DECS.  The Company will provide notice of any call of
the DECS to holders of record of the DECS to be called not less than 15 nor more
than 60 days prior to the date fixed for redemption. Such notice shall be
provided by mailing notice of such redemption to the holders of record of the
DECS to be called. Each holder of DECS to be called shall surrender the
certificates evidencing such DECS to the Company at the place designated in such
notice and shall be entitled to receive certificates for shares of Common Stock
following such surrender and the date of such redemption. If fewer than all the
outstanding DECS are to be called, the DECS to be called shall be selected by
the Company from outstanding DECS by lot or pro rata (as nearly as may be) or by
any other method determined by the Board of Directors of the Company in its sole
discretion to be equitable.
 
     Liquidation Rights.  In the event of the liquidation, dissolution or
winding up of the business of the Company, whether voluntary or involuntary, the
holders of DECS, after payment or provision for payment of the debts and other
liabilities of the Company and before any distribution to the holders of the
Common Stock or any other stock ranking junior to the DECS with respect to
distributions upon liquidation, dissolution or winding up, will be entitled to
receive, for each DECS, an amount equal to the sum of (i) the per share price to
the public shown on the cover page of this Prospectus and (ii) all accrued and
unpaid dividends thereon to the date of liquidation, dissolution or winding up.
In the event the assets of the Company available for distribution to the holders
of the DECS upon any dissolution, liquidation or winding up of the Company shall
be insufficient to pay in full the liquidation payments payable to the holders
of outstanding DECS and any shares of the Company ranking on a parity with the
DECS upon liquidation, then the holders of all such DECS shall share ratably in
such distribution of assets in accordance with the amount which would be payable
on such distribution if the amounts to which the holders of outstanding DECS and
the holders of such shares of the Company ranking on a parity with the DECS upon
liquidation are entitled were paid in full.
 
   
     Voting Rights.  The holders of DECS shall have the right to vote with the
holders of Common Stock in the election of directors and upon each other matter
coming before any meeting of the stockholders on the basis of 4/5 of a vote for
each DECS held; the holders of DECS, and the holders of Common Stock will vote
together as one class except as otherwise provided by law or by the Charter.
    
 
                                       59
<PAGE>   174
 
   
     Whenever dividends on the DECS shall be in arrears and unpaid in an
aggregate amount of dividends payable thereon for four quarterly dividend
periods, or if any other series of Preferred Stock shall be entitled for any
reason to exercise voting rights, separate from the Common Stock, to elect any
Director of the Company ("Preferred Stock Directors"), the holders of the DECS
(voting separately as a class with holders of all other series of Preferred
Stock upon which like voting rights have been conferred and are exercisable),
with each DECS entitled to one vote on this and other matters in which the
holders of Preferred Stock vote as a group, will be entitled to vote for the
election of two Preferred Stock Directors of the Company, such Directors to be
in addition to the number of directors constituting the Board of Directors
immediately prior to the accrual of such right. Such right shall, when vested,
continue until all dividends in default on the DECS shall have been paid in full
and the right of any other series of Preferred Stock to exercise voting rights,
separate from the Common Stock, to elect any Preferred Stock Directors shall
terminate or have terminated and, when so paid and such termination occurs or
has occurred, such right of the holders of the DECS shall cease. The term of
office of all Directors elected by the holders of the DECS and such other series
shall terminate on the earlier of (i) the next annual meeting of the
stockholders at which a successor shall have been elected and qualified or (ii)
the termination of the right of holders of the DECS and such other series to
vote for such Directors.
    
 
   
     The Company will not, without the approval of the holders of at least
66 2/3 percent of all the DECS then outstanding: (i) amend, alter or repeal any
of the provisions of the Charter or the Bylaws of the Company so as to affect
adversely the powers, preferences or rights of the holders of the DECS then
outstanding or reduce the minimum time required for any notice to which only the
holders of the DECS then outstanding may be entitled (an amendment of the
Charter to authorize or create, or to increase the authorized amount of any
stock of any class ranking junior to or on a parity with the DECS shall be
deemed not to affect adversely the powers, preferences, or rights of the holders
of the DECS); (ii) create any series of Preferred Stock ranking prior to the
DECS as to payment of dividends or upon liquidation; (iii) authorize or create,
or increase the authorized amount of, any capital stock, or any security
convertible into capital stock, of any class ranking prior to the DECS as to
payment of dividends or upon liquidation; or (iv) merge or consolidate with or
into any other corporation, unless each holder of the DECS immediately preceding
such merger or consolidation shall receive or continue to hold in the resulting
corporation the same number of shares, with substantially the same rights and
preferences, as correspond to the DECS so held.
    
 
     As long as any DECS are outstanding, the Company will not, without the
approval of the holders of at least a majority of the DECS and shares of any
Preferred Stock ranking on a parity with the DECS then outstanding: (i) increase
the authorized amount of the Preferred Stock or (ii) create any class or classes
of capital stock ranking on a parity with the DECS, either as to payment of
dividends or upon liquidation, and not existing on the date of the Certificate
of Designations, or create any stock, or other security, convertible into or
exchangeable for or evidencing the right to purchase any stock of such other
class of capital stock ranking on a parity with the DECS, or increase the
authorized number of shares of any such other class of capital stock or amount
of such other stock or security.
 
     Notwithstanding the provisions summarized in the preceding two paragraphs,
however, no such approval described therein of the holders of the DECS shall be
required if, at or prior to the time when such amendment, alteration, or repeal
is to take effect or when the authorization, creation or increase of any such
prior or parity stock or such other stock or security is to be made, or when
such consolidation or merger is to take effect, as the case may be, provision is
made for the redemption of all DECS at the time outstanding.
 
     Reissuance.  DECS redeemed for or converted into Common Stock or otherwise
acquired by the Company will assume the status of authorized but unissued
Preferred Stock and may thereafter be reissued in the same manner as other
authorized but unissued Preferred Stock.
 
     Listing.  The DECS have been approved for listing on the NYSE under the
symbol SFRPRA.
 
                                       60
<PAGE>   175
 
   
     Registrar and Transfer Agent.  First Chicago Trust Company of New York,
which also acts as transfer agent and registrar for the Common Stock and the
Convertible Preferred Stock, 7%, will serve as registrar and transfer agent for
the DECS.
    
 
                       FEDERAL INCOME TAX CONSIDERATIONS
 
     The following discussion sets forth the material United States federal
income tax consequences under existing law of the ownership and disposition of
the DECS. Changes to existing law, which could have retroactive effect, may
alter the consequences described below. This discussion relates only to DECS or
shares of Common Stock received upon conversion thereof or in exchange therefor
that are held as capital assets within the meaning of Section 1221 of the
Internal Revenue Code of 1986, as amended at the date hereof (the "Code"), and
does not deal with all tax consequences that may be relevant in the particular
circumstances of each holder (some of which, such as dealers in securities,
insurance companies, tax-exempt organizations and foreign persons, may be
subject to special rules). In addition, stock having terms closely resembling
those of the DECS has not been the subject of any regulation, ruling or judicial
decision currently in effect, and there can be no assurance that the Internal
Revenue Service will take the positions set forth below. Except as otherwise
indicated, statements of legal conclusions regarding federal income tax
consequences in this section reflect the opinion of Andrews & Kurth L.L.P.,
counsel to the Company. These conclusions are based on the Code, regulations
promulgated thereunder, and the current judicial and administrative
interpretations thereof. The Company has not and will not seek a ruling as to
any tax matters relating to the DECS. Persons considering the purchase of DECS
should consult their tax advisors with respect to the application of the United
States federal income tax laws to their particular situations as well as any tax
consequences arising under the laws of any state, local or foreign taxing
jurisdiction.
 
DIVIDENDS
 
   
     Dividends paid on the DECS out of the Company's current or accumulated
earnings and profits will be taxable as ordinary income and will qualify for the
70 percent intercorporate dividends-received deduction subject to the minimum
holding period (generally at least 46 days) and other applicable requirements.
Under certain circumstances, a corporate holder may be subject to the
alternative minimum tax with respect to the amount of its dividends-received
deduction.
    
 
     Under certain circumstances, a corporation that receives an "extraordinary
dividend," as defined in Section 1059(c) of the Code, is required to reduce its
stock basis by the non-taxed portion of such dividend. Generally, quarterly
dividends not in arrears paid to an original holder of the DECS will not
constitute extraordinary dividends under Section 1059(c). In addition, under
Section 1059(f), any dividend with respect to "disqualified preferred stock" is
treated as an "extraordinary dividend." However, while the issue is not free
from doubt due to the lack of authority directly on point, the DECs will not
constitute "disqualified preferred stock."
 
REDEMPTION PREMIUM
 
     Under certain circumstances, Section 305(c) of the Code requires that any
excess of the redemption price of preferred stock over its issue price be
includable in income, prior to receipt, as a constructive dividend. While the
issue is not free from doubt due to a lack of authority addressing the issue,
Section 305(c) should not currently apply to stock with terms such as those of
the DECS.
 
REDEMPTION OR MANDATORY OR OPTIONAL CONVERSION INTO COMMON STOCK
 
     Gain or loss generally will not be recognized by a holder upon the
redemption of the DECS for shares of Common Stock or the conversion of DECS into
shares of Common Stock if no cash is received. Income may be recognized,
however, to the extent cash or Common Stock is received in payment of accrued
and unpaid dividends in arrears. Such income would probably be characterized as
dividend income, although some uncertainty exists as to the appropriate
characterization of payments in satisfaction of undeclared
 
                                       61
<PAGE>   176
 
accrued and unpaid dividends. In addition, a holder who receives cash in lieu of
a fractional share will be treated as having received such fractional share and
having exchanged it for cash in a transaction subject to Section 302 of the Code
and related provisions. Such exchange should generally result in capital gain or
loss measured by the difference between the cash received for the fractional
share interest and the holder's basis in the fractional share interest.
 
     Generally, a holder's basis in the Common Stock received upon the
redemption or conversion of the DECS (other than shares of Common Stock taxed
upon receipt) will equal the adjusted tax basis of the redeemed or converted
DECS plus the amount of gain recognized, minus the amount of cash received, and
the holding period of such Common Stock will include the holding period of the
redeemed or converted DECS.
 
ADJUSTMENT OF CONVERSION RATE
 
     Certain adjustments (or failures to make adjustments) to the Common
Equivalent Rate to reflect the Company's issuance of certain rights, warrants,
evidences of indebtedness, securities or other assets to holders of Common Stock
may result in a constructive distribution taxable as dividends to the holders of
the DECS, which may constitute (and cause other dividends to constitute)
"extraordinary dividends" to corporate holders. See "--Dividends."
 
CONVERSION OF DECS AFTER DIVIDEND RECORD DATE
 
     If a holder of DECS exercises such holder's right to convert DECS into
shares of Common Stock after a dividend record date but before payment of the
dividend, then such holder generally will be required to pay the Company an
amount equal to the portion of such dividend attributable to the current
quarterly dividend period upon conversion, which amount would increase the basis
of the Common Stock received. The holder would recognize the dividend payment as
income.
 
BACKUP WITHHOLDING
 
     Certain non-corporate holders may be subject to backup withholding at a
rate of 31 percent on dividends and certain consideration received upon the
redemption or conversion of the DECS. Generally, backup withholding applies only
when the taxpayer fails to furnish or certify a proper Taxpayer Identification
Number or when the taxpayer is notified by the Internal Revenue Service that the
taxpayer has failed to report payments of interest and dividends properly.
Holders should consult their tax advisors regarding their qualification for
exemption from backup withholding and the procedure for obtaining any applicable
exemption.
 
                                  UNDERWRITING
 
     The Underwriters named below have severally agreed, subject to the terms
and conditions of the Underwriting Agreement with the Company, to purchase from
the Company the number of DECS set forth opposite their respective names. The
Underwriters are committed to purchase all of the DECS if any are purchased.
 
<TABLE>
<CAPTION>
                                                                       NUMBER OF
                                 UNDERWRITERS                            DECS
            ------------------------------------------------------    -----------
            <S>                                                       <C>
            Salomon Brothers Inc..................................
            Lazard Freres & Co....................................
            PaineWebber Incorporated..............................
                                                                      -----------
                 Total............................................     10,700,000
                                                                      -----------
</TABLE>
 
     The Underwriters have advised the Company that they propose initially to
offer DECS to the public at the public offering price set forth on the cover
page of this Prospectus and to certain dealers at such
 
                                       62
<PAGE>   177
 
price less a concession not in excess of $          per share. The Underwriters
may allow, and such dealers may reallow, a discount not in excess of $
per share on sales to certain other dealers. After the initial public offering,
the public offering price, concession and discount may be changed.
 
   
     The Company and each of its executive officers and directors (other than
Mr. Dammeyer) and each of HC Associates and Minorco USA, have agreed not to
offer, sell, contract to sell or otherwise dispose of any shares of Common
Stock, any securities convertible into or exercisable or exchangeable for Common
Stock, or any rights to acquire Common Stock for a period of 120 days after the
date of this Prospectus without the prior written consent of Salomon Brothers
Inc; provided, however, that such restriction shall not affect the ability of
the Company or its subsidiaries to take any such actions (i) as a consequence of
obligations with respect to securities outstanding prior to the date of this
Prospectus, (ii) in connection with any employee benefit or incentive plans of
the Company or (iii) in connection with the offering of the DECS made hereby or
the conversion thereof.
    
 
     The Company has granted to the Underwriters an option, exercisable for 30
days from the date of this Prospectus, to purchase up to an additional 1,605,000
DECS, at the per share price to public less underwriting discounts and
commissions. The Underwriters may exercise such rights of purchase only for the
purpose of covering over-allotments, if any, incurred in connection with the
sale of DECS offered hereby. To the extent that the Underwriters exercise such
option, each Underwriter will become obligated, subject to certain conditions,
to purchase the same proportion of such additional DECS as the number of other
DECS to be purchased by that Underwriter shown in the foregoing table bears to
the total number of DECS initially offered hereby.
 
     The Company has agreed to indemnify the Underwriters against certain civil
liabilities, including certain liabilities under the Securities Act of 1933, as
amended.
 
     The DECS are a new issue of securities with no established trading market.
The DECS have been approved for trading on the NYSE, but no assurance can be
given as to the development or liquidity of any trading market in the DECS. If
an active market does not develop, the market price and liquidity of the DECS
may be adversely affected.
 
                           VALIDITY OF THE SECURITIES
 
   
     The validity of the DECS will be passed upon for the Company by Andrews &
Kurth L.L.P., Houston, Texas. Certain legal matters will be passed upon for the
Underwriters by Cravath, Swaine & Moore, New York, New York.
    
 
                                    EXPERTS
 
     The financial statements as of December 31, 1993 and 1992 and for each of
the three years in the period ended December 31, 1993 included in this
Prospectus have been so included in reliance on the report of Price Waterhouse,
independent accountants, given on the authority of said firm as experts in
auditing and accounting.
 
     Certain information appearing in this Prospectus regarding the estimated
quantities of reserves of the oil and natural gas properties owned by the
Company, the future net revenues from such reserves and the present value
thereof is based on estimates of such reserves and present values prepared by
Ryder Scott Company, independent petroleum engineers.
 
                                       63
<PAGE>   178
 
                         INDEX TO FINANCIAL STATEMENTS
 
   
<TABLE>
<CAPTION>
                                                                                         PAGE
                                                                                        ------
<S>                                                                                     <C>
Audited Financial Statements
          Report of Independent Accountants............................................    F-2
          Consolidated Statement of Operations for the years ended December 31, 1993,
             1992 and 1991.............................................................    F-3
          Consolidated Balance Sheet -- December 31, 1993 and 1992.....................    F-4
          Consolidated Statement of Cash Flows for the years ended December 31, 1993,
             1992 and 1991.............................................................    F-5
          Consolidated Statement of Shareholders' Equity for the years ended
             December 31, 1993, 1992 and 1991..........................................    F-6
          Notes to Consolidated Financial Statements...................................    F-7
Unaudited Financial Information
          Supplemental Information to the Consolidated Financial Statements............   F-26
Unaudited Financial Statements
          Consolidated Statement of Operations for the three months ended
             March 31, 1994 and 1993...................................................   F-35
          Consolidated Balance Sheet -- March 31, 1994 and December 31, 1993...........   F-36
          Consolidated Statement of Cash Flows for the three months ended
             March 31, 1994 and 1993...................................................   F-37
          Consolidated Statement of Shareholders' Equity for the three months ended
             March 31, 1994 and 1993...................................................   F-38
          Notes to Consolidated Financial Statements...................................   F-39
</TABLE>
    
 
                                       F-1
<PAGE>   179
 
                       REPORT OF INDEPENDENT ACCOUNTANTS
 
To the Board of Directors and Shareholders of
Santa Fe Energy Resources, Inc.
 
     In our opinion, the accompanying consolidated balance sheet and the related
consolidated statements of operations, of cash flows, and of shareholders'
equity present fairly, in all material respects, the financial position of Santa
Fe Energy Resources, Inc. and its subsidiaries at December 31, 1993 and 1992,
and the results of their operations and their cash flows for each of the three
years in the period ended December 31, 1993, in conformity with generally
accepted accounting principles. These financial statements are the
responsibility of the Company's management; our responsibility is to express an
opinion on these financial statements based on our audits. We conducted our
audits of these statements in accordance with generally accepted auditing
standards which require that we plan and perform the audit to obtain reasonable
assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements, assessing the
accounting principles used and significant estimates made by management, and
evaluating the overall financial statement presentation. We believe that our
audits provide a reasonable basis for the opinion expressed above.
 
PRICE WATERHOUSE
 
Houston, Texas
February 18, 1994
 
                                       F-2
<PAGE>   180
                        SANTA FE ENERGY RESOURCES, INC.
                      CONSOLIDATED STATEMENT OF OPERATIONS
                (IN MILLIONS OF DOLLARS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
                                                                                        YEAR ENDED DECEMBER 31,
                                                                                    -------------------------------
                                                                                       1993      1992        1991
                                                                                    ---------  ---------  ---------
<S>                                                                                 <C>        <C>        <C>
Revenues
    Crude oil and liquids.........................................................  $   307.3  $   333.6  $   320.3
    Natural gas...................................................................      107.8       74.8       47.9
    Natural gas systems...........................................................        8.2        7.3         --
    Crude oil marketing and trading...............................................        9.9        5.9        7.2
    Other.........................................................................        3.7        5.9        4.4
                                                                                    ---------  ---------  ---------
                                                                                        436.9      427.5      379.8
                                                                                    ---------  ---------  ---------
Costs and Expenses
    Production and operating......................................................      163.8      153.4      134.6
    Oil and gas systems and pipelines.............................................        4.2        3.2         --
    Exploration, including dry hole costs.........................................       31.0       25.5       18.7
    Depletion, depreciation and amortization......................................      152.7      146.3      106.6
    Impairment of oil and gas properties..........................................       99.3         --         --
    General and administrative....................................................       32.3       30.9       27.8
    Taxes (other than income).....................................................       27.3       24.3       27.2
    Restructuring charges.........................................................       38.6         --         --
    Loss (gain) on disposition of oil and gas properties..........................        0.7      (13.6)       0.5
                                                                                    ---------  ---------  ---------
                                                                                        549.9      370.0      315.4
                                                                                    ---------  ---------  ---------
Income (Loss) from Operations.....................................................     (113.0)      57.5       64.4
    Interest income...............................................................        9.1        2.3        2.3
    Interest expense..............................................................      (45.8)     (55.6)     (47.3)
    Interest capitalized..........................................................        4.3        4.9        7.7
    Other income (expense)........................................................       (4.8)     (10.0)       5.6
                                                                                    ---------  ---------  ---------
Income (Loss) Before Income Taxes.................................................     (150.2)      (0.9)      32.7
    Income taxes..................................................................       73.1       (0.5)     (14.2)
                                                                                    ---------  ---------  ---------
Net Income (Loss).................................................................      (77.1)      (1.4)      18.5
Preferred dividend requirement....................................................       (7.0)      (4.3)        --
                                                                                    ---------  ---------  ---------
Earnings (Loss) Attributable to Common Shares.....................................  $   (84.1) $    (5.7) $    18.5
                                                                                    =========  =========  =========
Earnings (Loss) Attributable to Common Shares Per Share...........................  $   (0.94) $   (0.07) $    0.29
                                                                                    =========  =========  =========
Weighted Average Number of Shares Outstanding (in millions).......................       89.7       79.0       63.8
                                                                                    =========  =========  =========
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 



                                      F-3


<PAGE>   181
                        SANTA FE ENERGY RESOURCES, INC.
                           CONSOLIDATED BALANCE SHEET
                            (IN MILLIONS OF DOLLARS)

<TABLE>
<CAPTION>
                                                                                               DECEMBER 31,
                                                                                        --------------------------
                                                                                            1993          1992
                                                                                        -----------   ------------
<S>                                                                                     <C>           <C>
                                        ASSETS
Current Assets
    Cash and cash equivalents.........................................................  $        4.8  $       83.8
    Accounts receivable...............................................................          87.4          90.0
    Income tax refund receivable......................................................            --          16.2
    Inventories.......................................................................           8.7           4.8
    Assets held for sale..............................................................          59.5            --
    Other current assets..............................................................          12.2          10.6
                                                                                        ------------  ------------
                                                                                               172.6         205.4
                                                                                        ------------  ------------
Investment in Hadson Corporation......................................................          56.2            --
                                                                                        ------------  ------------
Properties and Equipment, at cost
    Oil and gas (on the basis of successful efforts accounting).......................       2,064.3       2,330.9
    Other.............................................................................          27.3          26.8
                                                                                        ------------  ------------
                                                                                             2,091.6       2,357.7
    Accumulated depletion, depreciation, amortization and impairment..................      (1,258.9)     (1,255.9)
                                                                                        ------------  ------------
                                                                                               832.7       1,101.8
                                                                                        ------------  ------------
Other Assets
    Receivable under gas balancing arrangements.......................................           3.9           7.7
    Other.............................................................................          11.5          22.3
                                                                                        ------------  ------------
                                                                                                15.4          30.0
                                                                                        ------------  ------------
                                                                                        $    1,076.9  $    1,337.2
                                                                                        ============  ============
                         LIABILITIES AND SHAREHOLDERS' EQUITY
Current Liabilities
    Accounts payable..................................................................  $       93.5  $       90.9
    Interest payable..................................................................          10.2          11.0
    Current portion of long-term debt.................................................          44.3          53.4
    Other current liabilities.........................................................          18.1          17.1
                                                                                        ------------  ------------
                                                                                               166.1         172.4
                                                                                        ------------  ------------
Long-Term Debt........................................................................         405.4         492.8
                                                                                        ------------  ------------
Deferred Revenues.....................................................................           8.6          13.0
                                                                                        ------------  ------------
Other Long-Term Obligations...........................................................          48.8          43.4
                                                                                        ------------  ------------
Deferred Income Taxes.................................................................          44.4         119.0
                                                                                        ------------  ------------
Commitments and Contingencies (Note 12)...............................................            --            --
                                                                                        ------------  ------------
Convertible Preferred Stock, $0.01 par value, 5.0 million shares authorized, issued
  and outstanding.....................................................................          80.0          80.0
                                                                                        ------------  ------------
Shareholders' Equity
    Preferred stock, $0.01 par value, 45.0 million shares authorized, none issued.....            --            --
    Common stock, $0.01 par value, 200.0 million shares authorized....................           0.9           0.9
    Paid-in capital...................................................................         496.9         494.3
    Unamortized restricted stock awards...............................................          (0.1)         (0.4)
    Accumulated deficit...............................................................        (173.8)        (78.0)
    Foreign currency translation adjustment...........................................          (0.3)         (0.2)
                                                                                        ------------  ------------
                                                                                               323.6         416.6
                                                                                        ------------  ------------
                                                                                        $    1,076.9  $    1,337.2
                                                                                        ============  ============
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 



                                      F-4

<PAGE>   182
                        SANTA FE ENERGY RESOURCES, INC.
                      CONSOLIDATED STATEMENT OF CASH FLOWS
                            (IN MILLIONS OF DOLLARS)

<TABLE>
<CAPTION>
                                                                                     YEAR ENDED DECEMBER 31,
                                                                                ----------------------------------
                                                                                   1993        1992        1991
                                                                                ----------  ----------  ----------
<S>                                                                             <C>         <C>         <C>
Operating Activities:
    Net income (loss).........................................................  $    (77.1) $     (1.4) $     18.5
    Adjustments to reconcile net income (loss) to net cash provided by
      operating activities:
        Depletion, depreciation and amortization..............................       152.7       146.3       106.6
        Impairment of oil and gas properties..................................        99.3          --          --
        Restructuring charges.................................................        27.8          --          --
        Deferred income taxes.................................................       (71.9)       (6.3)        1.5
        Net loss (gain) on disposition of properties..........................         0.7       (13.6)       (5.5)
        Exploratory dry hole costs............................................         8.9         4.7         3.8
        Expenses related to acquisition of Adobe Resources Corporation........          --        10.9          --
        Other.................................................................         4.2         2.0         0.3
    Changes in operating assets and liabilities:
        Decrease (increase) in accounts receivable............................        12.4        (8.3)       23.6
        Decrease (increase) in inventories....................................        (3.8)        0.3         5.6
        Increase (decrease) in accounts payable...............................        (2.6)        5.9       (24.9)
        Increase (decrease) in interest payable...............................        (0.8)        0.4         0.2
        Decrease in income taxes payable......................................        (0.6)       (0.4)       (3.6)
        Net change in other assets and liabilities............................        11.0         1.0         2.3
                                                                                ----------  ----------  ----------
Net Cash Provided by Operating Activities.....................................       160.2       141.5       128.4
                                                                                ----------  ----------  ----------
Investing Activities:
    Capital expenditures, including exploratory dry hole costs................      (127.0)      (76.8)     (108.1)
    Acquisitions of producing properties, net of related debt.................        (4.4)      (14.2)      (28.5)
    Acquisition of Adobe Resources Corporation................................          --       (11.9)         --
    Acquisition of Santa Fe Energy Partners, L.P..............................       (28.3)         --          --
    Net proceeds from sales of properties.....................................        39.9        89.1        22.1
    Increase in partnership interest due to reinvestment......................        (1.6)       (2.1)       (2.7)
                                                                                ----------  ----------  ----------
Net Cash Used in Investing Activities.........................................      (121.4)      (15.9)     (117.2)
                                                                                ----------  ----------  ----------
Financing Activities:
    Net change in short-term debt.............................................          --        (4.6)       (4.2)
    Proceeds from long-term borrowings........................................          --         5.0          --
    Principal payments on long-term borrowings................................       (41.5)      (55.5)      (16.3)
    Net change in revolving credit agreement..................................       (55.0)         --          --
    Cash dividends paid to others.............................................       (21.3)      (14.9)      (10.2)
                                                                                ----------  ----------  ----------
Net Cash Used in Financing Activities.........................................      (117.8)      (70.0)      (30.7)
                                                                                ----------  ----------  ----------
Net Increase (Decrease) in Cash and Cash Equivalents..........................       (79.0)       55.6       (19.5)
Cash and Cash Equivalents at Beginning of Year................................        83.8        28.2        47.7
                                                                                ----------  ----------  ----------
Cash and Cash Equivalents at End of Year......................................  $      4.8  $     83.8  $     28.2
                                                                                ==========  ==========  ==========
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
 



                                      F-5


<PAGE>   183
                        SANTA FE ENERGY RESOURCES, INC.
                 CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY
                        (SHARES AND DOLLARS IN MILLIONS)
 

<TABLE>                                       
<CAPTION>                                     
                                                                                                         FOREIGN
                                                                            UNAMORTIZED                  CURRENCY
                                                 COMMON STOCK               RESTRICTED                   TRANSLA-       TOTAL   
                                                ---------------   PAID-IN      STOCK      ACCUMULATED      TION     SHAREHOLDERS'
                                                SHARES   AMOUNT   CAPITAL     AWARDS        DEFICIT     ADJUSTMENT     EQUITY   
                                                ------   ------   -------  ------------   -----------   ----------  -------------
<S>                                               <C>     <C>     <C>         <C>          <C>            <C>          <C>      
Balance at December 31, 1990..................    63.8    $0.6    $ 282.4     $    --      $   (67.2)     $   --       $ 215.8  
  Net income..................................      --      --         --          --           18.5          --          18.5  
  Issuance of common stock....................     0.3      --        2.5        (1.4)            --          --           1.1  
  Dividends declared..........................      --      --         --          --          (10.3)         --         (10.3) 
                                                  ----    ----    -------     -------      ---------      ------       -------
Balance at December 31, 1991..................    64.1     0.6      284.9        (1.4)         (59.0)         --         225.1  
  Issuance of common stock                                                                                                      
    Acquisition of Adobe                                                                                                        
     Resources Corporation....................    24.9     0.3      205.3          --             --          --         205.6  
    Employee stock compensation and savings                                                                                     
     plans....................................     0.5      --        4.1        (0.5)            --          --           3.6  
  Amortization of restricted stock awards.....      --      --         --         1.5             --          --           1.5  
  Foreign currency translation adjustments....      --      --         --          --             --        (0.2)         (0.2) 
  Net loss....................................      --      --         --          --           (1.4)         --          (1.4) 
  Dividends declared..........................      --      --         --          --          (17.6)         --         (17.6) 
                                                  ----    ----    -------     -------      ---------      ------       -------
Balance at December 31, 1992..................    89.5     0.9      494.3        (0.4)         (78.0)       (0.2)        416.6   
  Issuance of common stock                                                                                                       
    Employee stock compensation and savings                                                                                      
     plans....................................     0.3      --        2.6        (0.1)            --          --           2.5   
  Amortization of restricted                                                                                                     
   stock awards...............................      --      --         --         0.4             --          --           0.4   
  Pension liability adjustment................      --      --         --          --           (0.9)         --          (0.9)  
  Foreign currency transaction adjustments....      --      --         --          --             --        (0.1)         (0.1)  
  Net loss....................................      --      --         --          --          (77.1)         --         (77.1)  
  Dividends declared..........................      --      --         --          --          (17.8)         --         (17.8)
                                                  ----    ----    -------     -------      ---------      ------       -------
Balance December 31, 1993.....................    89.8    $0.9    $ 496.9     $  (0.1)     $  (173.8)     $ (0.3)      $ 323.6   
                                                  ====    ====    =======     =======      =========      ======       =======
</TABLE>
 
   The accompanying notes are an integral part of these financial statements.
                                                                   



                                      F-6

<PAGE>   184
                        SANTA FE ENERGY RESOURCES, INC.
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
(1)  ORGANIZATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
  Principles of Consolidation
 
    The consolidated financial statements of Santa Fe Energy Resources, Inc.
("Santa Fe" or the "Company") and its subsidiaries include the accounts of all
wholly owned subsidiaries. The accounts of Santa Fe Energy Partners, L.P., (the
"Partnership") are included on a proportional basis until September 1993 when
Santa Fe purchased all the Partnership's outstanding Depositary Units and
undeposited LP Units other than those units held by Santa Fe and its affiliates.
 
    On September 27, 1993 the Company exercised its right under the Agreement of
Limited Partnership to purchase all of the Partnership's outstanding Depositary
Units and undeposited LP Units, other than those units held by the Company and
its affiliates, at a redemption price of $4.9225 per unit. Consideration for the
5,749,500 outstanding units totalled $28.3 million. The acquisition of the units
has been accounted for as a purchase and the results of operations of the
Partnership attributable to the units acquired is included in the Company's
results of operations with effect from October 1, 1993. The purchase price has
been allocated primarily to oil and gas properties.
 
    References herein to the "Company" or "Santa Fe" relate to Santa Fe Energy
Resources, Inc., individually or together with its consolidated subsidiaries;
references to the "Partnership" relate to Santa Fe Energy Partners, L.P.
 
    All significant intercompany accounts and transactions have been eliminated.
Prior years' financial statements include certain reclassifications to conform
to current year's presentation.
 
  Oil and Gas Operations
 
    The Company follows the successful efforts method of accounting for its oil
and gas exploration and production activities. Costs (both tangible and
intangible) of productive wells and development dry holes, as well as the cost
of prospective acreage, are capitalized. The costs of drilling and equipping
exploratory wells which do not find proved reserves are expensed upon
determination that the well does not justify commercial development. Other
exploratory costs, including geological and geophysical costs and delay rentals,
are charged to expense as incurred.
 
    Depletion and depreciation of proved properties are computed on an
individual field basis using the unit-of-production method based upon proved oil
and gas reserves attributable to the field. Certain other oil and gas properties
are depreciated on a straight-line basis. Individual proved properties are
reviewed periodically to determine if the carrying value of the field exceeds
the estimated undiscounted future net revenues from proved oil and gas reserves
attributable to the field. Based on this review and the continuing evaluation of
development plans, economics and other factors, if appropriate, the Company
records impairments (additional depletion and depreciation) to the extent that
the carrying value exceeds the estimated undiscounted future net revenues. Such
impairments totaled $99.3 million in 1993 and there were none in 1992 and 1991.
 
    The Company provides for future abandonment and site restoration costs with
respect to certain of its oil and gas properties. The Company estimates that
with respect to these properties such future costs total approximately $24.7
million and such amount is being accrued over the expected life of the
properties. At December 31, 1993 Accumulated Depletion, Depreciation,
Amortization and Impairment includes $14.6 million with respect to such costs.
 
    The value of undeveloped acreage is aggregated and the portion of such costs
estimated to be nonproductive, based on historical experience, is amortized to
expense over the average holding period. Additional amortization may be
recognized based upon periodic assessment of prospect evaluation results. The
cost of properties determined to be productive is transferred to proved
 



                                      F-7

<PAGE>   185
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

properties; the cost of properties determined to be nonproductive is charged to
accumulated amortization.
 
    Maintenance and repairs are expensed as incurred; major renewals and
improvements are capitalized. Gains and losses arising from sales of properties
are included in income currently.
 
  Revenue Recognition
 
    Revenues from the sale of petroleum produced are generally recognized upon
the passage of title, net of royalties and net profits interests. Crude oil
revenues include the effect of hedging transactions; see Note 12 -- Commitments
and Contingencies -- Crude Oil Hedging Program. Crude oil revenues also include
the value of crude oil consumed in operations with an equal amount charged to
operating expenses. Such amounts totalled $15.4 million in 1991, $4.8 million in
1992 and $1.2 million in 1993.
 
    Revenues from natural gas production are generally recorded using the
entitlement method, net of royalties and net profits interests. Sales proceeds
in excess of the Company's entitlement are included in Deferred Revenues and the
Company's share of sales taken by others is included in Other Assets. At
December 31, 1993 the Company's deferred revenues for sales proceeds received in
excess of the Company's entitlement was $6.8 million with respect to 5.2 MMcf
and the asset related to the Company's share of sales taken by others was $3.9
million with respect to 2.7 MMcf. Natural gas revenues are net of the effect of
hedging transactions; see Note 12 -- Commitments and Contingencies -- Natural
Gas Hedging Program.
 
    Revenues from crude oil marketing and trading represent the gross margin
resulting from such activities. Revenues from such activities are net of costs
of sales of $210.5 million in 1991, $247.3 million in 1992 and $225.9 million in
1993.
 
    Revenues from natural gas systems are net of the cost of natural gas
purchased and resold. Such costs totalled $43.8 million in 1992 and $49.9
million in 1993.
 
  Earnings Per Share
 
    Earnings per share are based on the weighted average number of common shares
outstanding during the year.
 
  Accounts Receivable
 
    Accounts Receivable relates primarily to sales of oil and gas and amounts
due from joint interest partners for expenditures made by the Company on behalf
of such partners. The Company reviews the financial condition of potential
purchasers and partners prior to signing sales or joint interest agreements. At
December 31, 1993 and 1992 the Company's allowance for doubtful accounts
receivable, which is reflected in the consolidated balance sheet as a reduction
in accounts receivable, totaled $6.3 million and $5.0 million, respectively.
Accounts receivable totalling $0.2 million, $1.1 million and $0.1 million were
written off as uncollectible in 1991, 1992 and 1993, respectively.
 
  Inventories
 
    Inventories are valued at the lower of cost (average price or first.in,
first.out) or market. Crude oil inventories at December 31, 1993 and 1992 were
$1.1 million and $1.5 million, respectively, and materials and supplies
inventories at such dates were $7.6 million and $3.3 million, respectively.
 
  Environmental Expenditures
 
    Environmental expenditures relating to current operations are expensed or
capitalized, as appropriate, depending on whether such expenditures provide
future economic benefits. Liabilities 
 



                                      F-8

<PAGE>   186
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

are recognized when the expenditures are considered probable and can be
reasonably estimated. Measurement of liabilities is based on currently enacted
laws and regulations, existing technology and undiscounted site-specific costs.
Generally, such recognition coincides with the Company's commitment to a formal
plan of action.
 
  Income Taxes
 
    The Company follows the asset and liability approach to accounting for
income taxes. Deferred tax assets and liabilities are determined using the tax
rate for the period in which those amounts are expected to be received or paid,
based on a scheduling of temporary differences between the tax bases of assets
and liabilities and their reported amounts. Under this method of accounting for
income taxes, any future changes in income tax rates will affect deferred income
tax balances and financial results.
 
(2) CORPORATE RESTRUCTURING PROGRAM
 
    In October 1993 the Company's Board of Directors endorsed a broad corporate
restructuring program that focuses on the disposition of non-core assets, the
concentration of capital spending in core areas, the refinancing of certain
long-term debt and the elimination of the payment of its $0.04 per share
quarterly dividend on common stock.
 
    In implementing the restructuring program the Company recorded a
nonrecurring charge of $38.6 million in 1993 comprised of (1) losses on property
dispositions of $27.8 million: (2) long-term debt repayment penalties of $8.6
million; and (3) accruals for certain personnel benefits and related costs of
$2.2 million.
 
    The Company's non-core asset disposition program includes the sale of its
natural gas gathering and processing assets to Hadson Corporation ("Hadson"),
the sale to Vintage Petroleum, Inc. of certain southern California and Gulf
Coast oil and gas producing properties and the sale to Bridge Oil (U.S.A.) Inc.
("Bridge") of certain Mid-Continent and Rocky Mountain oil and gas producing
properties and undeveloped acreage. The Company also plans to dispose of other
non-core oil and gas properties during 1994.
 
    In 1994 the Company intends to refinance a portion of its existing 
long-term debt and is currently evaluating a combination of debt and equity 
financing arrangements with which to effect the refinancing.
 
    Sale to Hadson.  In December 1993 the Company completed a transaction with
Hadson under the terms of which the Company sold the common stock of Adobe Gas
Pipeline Company ("AGPC"), a wholly-owned subsidiary which held the Company's
natural gas gathering and processing assets, to Hadson in exchange for Hadson
11.25% preferred stock with a face value of $52.0 million and 40% of Hadson's
common stock. In addition, the Company signed a seven-year gas sales contract
under the terms of which Hadson will market substantially all of the Company's
domestic natural gas production at market prices as defined by published monthly
indices for relevant production locations.
 
    The Company accounted for the sale as a non-monetary transaction and the
investment in Hadson has been valued at $56.2 million, the carrying value of the
Company's investment in AGPC. The Company's investment in Hadson is being
accounted for on the equity basis. At December 31, 1993 the Company's investment
in Hadson's common stock exceeded the net book value attributable to such common
shares by approximately $11.3 million. The Company's income from operations for
1993 includes $1.6 million attributable to the assets sold to Hadson.
 
    Sale to Vintage.  In November 1993 the Company completed the sale of certain
southern California and Gulf Coast producing properties for net proceeds
totalling $41.3 million in cash, $31.5
 



                                      F-9

<PAGE>   187
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

million of which was collected in 1993. The Company's income from operations for
1993 includes $2.7 million attributable to the assets sold to Vintage.
 
    Sale to Bridge.  In December 1993 the Company signed a Purchase and Sales
Agreement with Bridge under the terms of which Bridge will purchase certain
Mid-Continent and Rocky Mountain producing and nonproducing oil and gas
properties. The sale price of $51.0 million, subject to certain adjustments,
will be received by the Company either in the form of cash plus 10% of the
outstanding shares of Bridge, following the contemplated public offering of that
stock in the first quarter of 1994, or entirely in cash. The transaction is
expected to close in the second quarter of 1994.
 
    The net book value of these assets is included in Assets Held for Sale at
December 31, 1993. The Company's income from operations for 1993 includes $5.8
million attributable to the assets to be sold to Bridge.
 
    Other Dispositions.  The Company has identified certain other oil and gas
properties which it plans to dispose of in 1994. The estimated realizable value
of these properties, $1.0 million, is included in Assets Held for Sale at
December 31, 1993. In the first quarter of 1994 the Company sold its interest in
certain other oil and gas properties for $8.3 million.
 
(3)  MERGER WITH ADOBE RESOURCES CORPORATION
 
    On May 19, 1992 Adobe Resources Corporation ("Adobe"), an oil and gas
exploration and production company, was merged with and into Santa Fe (the
"Merger"). The acquisition has been accounted for as a purchase and the results
of operations of the properties acquired (the "Adobe Properties") are included
in Santa Fe's results of operations effective June 1, 1992.
 
    To consummate the Merger, the Company issued 24.9 million shares of common
stock valued at $205.5 million, 5.0 million shares of convertible preferred
stock valued at $80.0 million, assumed long-term bank debt and other liabilities
of $140.0 million and $35.0 million, respectively, and incurred $13.8 million in
related costs. The Company also recorded a $19.7 million deferred tax liability
with respect to the difference between the book and tax basis in the assets
acquired. Certain merger.related costs incurred by Adobe and paid by Santa Fe
totaling $10.9 million were charged to income in the second quarter of 1992.
 
    The Merger constituted a "change of control" as defined in certain of the
Company's employee benefit plans and employment agreements (see Notes 10 and
12).
 
    In a separate transaction in January 1992, the Company purchased three
producing properties from Adobe for $14.2 million.
 
(4)  SANTA FE ENERGY TRUST
 
    In November 1992 5,725,000 Depository Units ("Trust Units"), each consisting
of beneficial ownership of one unit of undivided beneficial interest in the
Santa Fe Energy Trust (the "Trust") and a $20 face amount beneficial ownership
interest in a $1,000 face amount zero coupon United States Treasury obligation
maturing on or about February 15, 2008, were sold in a public offering. The
Trust consists of certain oil and gas properties conveyed by Santa Fe. A total
of $114.5 million was received from public investors, of which $38.7 million was
used to purchase the Treasury obligations and $5.7 million was used to pay
underwriting commissions and discounts. Santa Fe received the remaining $70.1
million and 575,000 Trust Units. A portion of the proceeds received by the
Company was used to retire $30.0 million of the debt incurred in connection with
the Merger and the remainder will be used for general corporate purposes
including possible acquisitions.
 



                                      F-10

<PAGE>   188
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

    For any calendar quarter ending on or prior to December 31, 2002, the
Trust will receive additional royalty payments to the extent that it needs such 
payments to distribute $0.40 per Depository Unit per quarter. The source of such
additional royalty payments, if needed, will be limited to the Company's
remaining royalty interest in certain of the properties conveyed to the Trust.
If such additional payments are made, certain proceeds otherwise payable to the
Trust in subsequent quarters may be reduced to recoup the amount of such
additional payments. The aggregate amount of the additional royalty payments
(net of any amounts recouped) will be limited to $20.0 million on a revolving
basis.
 
    At December 31, 1993 the Company held 575,000 Trust Units. At December 31,
1993 Accounts Receivable includes $0.2 million due from the Trust and Accounts
Payable includes $1.9 million due to the Trust. In the first quarter of 1994 the
Company sold the Trust Units for $11.3 million, the Company's investment in the
Trust Units, $10.4 million, is included in Assets Held for Sale at December 31,
1993.
 
(5)  ACQUISITIONS OF OIL AND GAS PROPERTIES
 
    In January 1991 the Company completed the purchase of Mission Operating
Partnership, L.P.'s ("Mission") interest in certain oil and gas properties,
effective from November 1, 1990, for approximately $55.0 million. The Company
formed a partnership, with an institutional investor as a limited partner, to
acquire and operate the properties. The investor contributed $27.5 million for a
50% interest in the partnership, which will be reduced to 15% upon the occurence
of payout. Payout will occur when the investor has received distributions from
the partnership totalling an amount equal to its original contribution plus a
12% rate of return on such contribution. Prior to payout, the Company will bear
100% of the capital expenditures of the partnership. Under the terms of the
partnership agreement a total of $36.8 million must be expended on development
of the property by the year 2000, $12.4 million of which had been expended
through the end of 1993.
 
    The Company funded $16.8 million of its share of the purchase of the
properties with the assumption of a term loan and paid the remainder from
working capital. The Company has given the lender the equivalent of an
overriding royalty interest in certain production from the properties. The
royalty is payable only if such production occurs and is limited to a maximum of
$3.0 million.
 
    In June 1991 the Company acquired a 10% interest in a producing field in
Argentina for approximately $18.3 million and in October 1991 purchased an
additional 8% interest in the field for approximately $15.7 million. The Company
financed $17.8 million of the total purchase price with loans from an Argentine
bank. The Company has agreed to spend approximately $16.7 million over a
five-year period on development and maintenance of the field.
 
(6)  CASH FLOWS
 
    The Company considers all highly liquid investments with a maturity of three
months or less when purchased to be cash equivalents.
 
    The Merger included certain non-cash investing and financing activities not
reflected in the Statement of Cash Flows as follows (in millions of dollars):

<TABLE>
          <S>                                                                  <C>    
          Common stock issued.............................................      205.5 
          Convertible preferred stock issued..............................       80.0 
          Deferred tax liability..........................................       19.7 
          Long-term debt..................................................      140.0 
          Assets acquired, other than cash, net of liabilities assumed....     (457.1)
                                                                               ------ 
          Cash paid.......................................................      (11.9)
                                                                               ====== 
</TABLE> 
                                                                               
                                                                               
                                                                               
                                      F-11

<PAGE>   189
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

    In 1991, the Company sold a producing property for $0.9 million in cash
and a note receivable for $1.2 million. In 1991, the Partnership purchased
certain  surface properties for $6.2 million, $5.5 million of which was funded
by the issuance of promissory notes and the Company also purchased producing
properties for $63.1 million, $34.6 million of which was funded with debt (see
Notes 5 and 7).
 
    The Company made interest payments of $45.5 million, $49.0 million and $48.0
million in 1991, 1992 and 1993, respectively. In 1991, 1992 and 1993, the
Company made tax payments of $18.4 million, $4.4 million and $5.0 million,
respectively, and in 1993 received refunds of $4.1 million, primarily related to
the audit of prior years' returns.
 
(7)  FINANCING AND DEBT
 
    Long-term debt at December 31, 1993 and 1992 consisted of (in millions of
dollars):
 

<TABLE>
<CAPTION>
                                                                                      DECEMBER 31,
                                                                      --------------------------------------------
                                                                              1993                    1992
                                                                      --------------------    --------------------
                                                                      CURRENT    LONG-TERM    CURRENT    LONG-TERM
                                                                      -------    ---------    -------   ----------
<S>                                                                     <C>         <C>         <C>         <C>
SFER
    Senior Notes...................................................     30.0        310.0       25.0        340.0
    Revolving and Term Credit Agreement............................      1.3         48.7       12.8         92.2
    Notes Payable to Bank..........................................      3.8         11.3        2.5         15.1
    Term.Loan......................................................      1.2         11.4        1.2         12.6
Partnership
    Credit Agreement...............................................      8.0         24.0       11.1         29.5
    Promissory Notes...............................................       --           --        0.8          3.4
                                                                        ----        -----       ----        -----
                                                                        44.3        405.4       53.4        492.8
                                                                        ====        =====       ====        =====
</TABLE>
 
    Aggregate total maturities of long-term debt during the next five years are
as follows: 1994 -- $44.3 million; 1995 -- $78.9 million; 1996 -- $73.5 million;
1997 -- $43.0 million; and 1998 -- $35.0 million. These maturities will be
affected by the refinancing discussed in Note 2 -- Corporate Restructuring
Program.
 
    On April 11, 1990 SFER issued $365.0 million of serial unsecured Senior
Notes with interest rates averaging 10.35%. The Note Agreement pursuant to which
the Senior Notes were issued includes certain covenants which, among other
things, restrict the Company's ability to incur additional indebtedness and to
pay dividends. Under the terms of the Note Agreement, at December 31, 1993 the
Company had the ability to incur at least $64.0 million in additional long-term
debt and pay $26.0 million in dividends and other restricted payments. At
December 31, 1993 $340.0 million in Senior Notes were outstanding and are to be
repaid, $30.0 million in 1994 and 1995, $35.0 million in 1996 through 1998 and
$25.0 million per year in 1999 through 2005.
 
    In January 1991 the Company executed a $16.8 million term.loan agreement,
with interest at 9.0%, in connection with the purchase of certain producing
properties from Mission. At December 31, 1993 $12.6 million was outstanding
under the terms of the agreement and is to be repaid $1.2 million in 1994 and
$11.4 million in 1995. The Company made principal payments on the loan totalling
$1.8 million in 1991, $1.2 million in 1992 and $1.2 million in 1993.
 
    In June 1991 the Company borrowed $10.4 million from an Argentine bank in
connection with the purchase of an interest in a producing oil field in
Argentina. The loan bore interest at the higher of 12% or the interbank offering
rate plus 2%. In October 1991 the Company borrowed an additional $7.8 million in
connection with the purchase of an additional interest in the field. The second
loan bore interest at the higher of rates ranging from 13.4% to 14.0% or the
London Interbank Offering 
 



                                      F-12

<PAGE>   190
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
Rate ("LIBOR") plus 2%. During 1993 the two loans were combined in a new loan 
which bears interest at the higher of 13.06% or LIBOR plus 2%.

    In connection with the Merger the Company entered into a $195.0 million
Revolving and Term Credit Agreement (the "Credit Agreement") with a group of
banks. Upon consummation of the Merger the Company drew down the $145.0 million
available under the term loan feature of the Credit Agreement and repaid the
$140.0 million of long-term debt assumed in the Merger. The borrowings under the
term loan feature of the Credit Agreement are secured by properties acquired in
the Merger. Interest rates on borrowings are determined from time to time and at
December 31, 1993 amounts outstanding under the term loan feature bore interest
at an average of 5.5% per annum.
 
    In April 1993 the term loan feature was amended to allow the Company to make
voluntary prepayments and reborrowings. At December 31, 1993 the balance
outstanding under the term loan feature was $50.0 million and the total amount
available under the term loan feature, including amounts then outstanding, was
$87.7 million. The amount available will be reduced, in semi.annual increments,
to $48.6 million in December 31, 1994 and $24.3 million at December 31, 1995.
The Credit Agreement expires December 31, 1996. In certain circumstances,
primarily related to the sale of properties securing the loans, the amount
available may be reduced or the Company may be required to make mandatory
repayments. The Company is currently negotiating an amendment to the Credit
Agreement which would extend the maturities and under certain circumstances
increase the amount available for borrowings.
 
    Under the revolving credit feature of the Credit Agreement the Company may
borrow and issue letters of credit totalling up to $50.0 million. Borrowings
under the revolving credit feature are unsecured but are subject to compliance
with covenants identical to existing covenants under the Company's other
long-term debt agreeements including covenants related to debt incurrence,
dividends and other restricted payments, investments and limitations on liens,
mergers and sales of assets. In addition, the Company must comply annually with
certain borrowing base coverage ratios relating to projected cash flows from oil
and gas revenues. The amount available under the revolving credit feature will
be reduced to $10.0 million on February 28, 1994 and this feature expires on
February 28, 1995. At December 31, 1993, the Company had $8.7 million in letters
of credit outstanding under the revolving credit feature of the Credit
Agreement.
 
    The Company has two uncommitted lines of credit totalling $35.0 million
which is used to meet short-term cash needs. Interest rates on borrowings under
this line of credit is typically lower than rates paid under the Credit
Agreement. At December 31, 1993 no amounts were outstanding under these lines of
credit.
 
    In December 1991 the Partnership issued two promissory notes for a total of
$5.5 million in connection with the purchase of certain surface lands. The
notes, which bore interest at 10.0%, were retired in 1993. The Company's
proportionate share of such debt at December 31, 1992 was $4.2 million.
 
    At December 31, 1993 and 1992 the Partnership had $32.0 million and $44.0
million, respectively, outstanding under the terms of long-term credit agreement
which expires in 1997. The Company's proportionate share of such debt totaled
$40.6 million at December 31, 1992. Interest on 65% of principal amount
outstanding is fixed at 10.13% with interest on the remaining amount outstanding
at floating rates which averaged 4.3% in 1993 and 5.46% in 1992. The credit
agreement imposes certain restrictions on future indebtedness and the transfer
or sale of principal properties and requires the maintenance of certain
financial ratios to avoid collateralization or default.
 



                                      F-13

<PAGE>   191
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
(8)  SEGMENT INFORMATION
 
    The principal business of the Company is oil and gas, which consists of the
acquisition, exploration and development of oil and gas properties and the
production and sale of crude oil and liquids and natural gas. Pertinent
information with respect to the Company's oil and gas business is presented in
the following table (in millions of dollars):
 

<TABLE>
<CAPTION>                                                         OIL AND GAS      
                                                 ---------------------------------------------
                                                                                        OTHER      GENERAL
                                                   U.S.      ARGENTINA    INDONESIA    FOREIGN    CORPORATE     TOTAL
                                                 --------    ---------    ---------    -------    ---------   ---------
<S>                                              <C>         <C>          <C>          <C>         <C>         <C>
1993
  Revenues.....................................    401.2         12.5          23.2         --           --        436.9
  Income (Loss) from Operations................    (33.6)         3.0         (13.4)     (18.4)       (50.6)      (113.0)
  Depletion, Depreciation, Amortization and
    Impairment.................................    218.8          3.6          21.2        6.7          1.7        252.0
  Additions to Property and Equipment..........    116.1          7.3          16.8        6.1          4.4        150.7
  Identifiable Assets at December 31...........    862.0         48.2          65.3        2.8         98.6      1,076.9
1992
  Revenues.....................................    400.0         13.9          13.6       --          --           427.5
  Income (Loss) from Operations................    100.6          2.5           2.3      (10.7 )      (37.2)        57.5
  Depletion, Depreciation and Amortization.....    136.7          3.7           2.7        1.6          1.6        146.3
  Additions to Property and Equipment..........    452.6          4.0          71.6        5.7          2.4        536.3
  Identifiable Assets at December 31...........  1,076.5         39.2          73.9        5.8        141.8      1,337.2
1991
  Revenues.....................................    376.1          3.7         --          --          --           379.8
  Income (Loss) from Operations................    103.7         (2.2)           .2       (2.5 )      (34.8)        64.4
  Depletion, Depreciation and Amortization.....    101.3          1.8         --            .7          2.8        106.6
  Additions to Property and Equipment..........    125.8         35.4         --           3.7          8.8        173.7
  Identifiable Assets at December 31...........    816.5         37.5            .2        3.9         53.8        911.9

</TABLE>
 
    Crude oil and liquids and natural gas accounted for more than 95% of
revenues in 1991, 1992 and 1993. The following table reflects sales revenues
from crude oil purchasers who accounted for more than 10% of the Company's crude
oil and liquids revenues (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                              YEAR ENDED DECEMBER 31,
                                                                             -------------------------
                                                                             1993       1992      1991
                                                                             ----       ----      ----
<S>                                                                          <C>        <C>       <C>
Texaco Trading and Transportation, Inc...................................      --       46.8      55.9
Celeron Corporation......................................................    56.8       56.3      45.6
Shell Oil Company........................................................    86.3         --        --

</TABLE>
 
    None of the Company's purchasers of natural gas accounted for more than 10%
of revenues in 1991, 1992 or 1993. The Company does not believe the loss of any
purchaser would have a material adverse effect on its financial position since
the Company believes alternative sales arrangements could be made on relatively
comparable terms.
 



                                      F-14

<PAGE>   192
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
(9)  CONVERTIBLE PREFERRED STOCK
 
    The convertible preferred stock issued in connection with the Merger is
non-voting and entitled to receive cumulative cash dividends at an annual rate
equivalent to $1.40 per share. The holders of the convertible preferred shares
may, at their option, convert any or all such shares into 1.3913 shares of the
Company's common stock. The Company may, at any time after the fifth anniversary
of the effective date of the Merger and upon the occurrence of a "Special
Conversion Event", convert all outstanding shares of convertible preferred stock
into common stock at the initial conversion rate of 1.3913 shares of common
stock, subject to certain adjustments, plus additional shares in respect to
accrued and unpaid dividends. A Special Conversion Event is deemed to have
occurred when the average daily closing price for a share of the Company's
common stock for 20 of 30 consecutive trading days equals or exceeds 125% of the
quotient of $20.00 divided by the then applicable conversion rate (approximately
$18.00 per share at a conversion rate of 1.3913).
 
    Upon the occurrence of the "First Ownership Change" of Santa Fe, each holder
of shares of convertible preferred stock shall have the right, at the holder's
option, to elect to have all of such holder's shares redeemed for $20.00 per
share plus accrued and unpaid interest and dividends. The First Ownership Change
shall be deemed to have occurred when any person or group, together with any
affiliates or associates, becomes the beneficial owner of 50% or more of the
outstanding common stock of Santa Fe.
 
(10)  SHAREHOLDERS' EQUITY
 
  Common Stock
 
    In 1991, 1992 and 1993 the Company issued 1.1 million previously unissued
shares of common stock in connection with certain employee benefit and
compensation plans. Also in 1992, the Company issued 24.9 million previously
unissued shares of common stock in connection with the Merger.
 
    The Company declared dividends to common shares of $0.16 per share in 1991
and 1992 and $0.12 per share in 1993.
 
  Preferred Stock
 
    The Board of Directors of the Company is empowered, without approval of the
shareholders, to cause shares of preferred stock to be issued in one or more
series, and to determine the number of shares in each series and the rights,
preferences and limitations of each series. Among the specific matters which may
be determined by the Board of Directors are: the annual rate of dividends; the
redemption price, if any; the terms of a sinking or purchase fund, if any; the
amount payable in the event of any voluntary liquidation, dissolution or winding
up of the affairs of the Company; conversion rights, if any; and voting powers,
if any.
 
  Accumulated Deficit
 
    At December 31, 1993 Accumulated Deficit included dividends in excess of
retained earnings of $89.8 million.
 
  1990 Incentive Stock Compensation Plan
 
    The Company has adopted the Santa Fe Energy Resources 1990 Incentive Stock
Compensation Plan (the "Plan") under the terms of which the Company may grant
options and awards with respect to no more than 5,000,000 shares of common stock
to officers and key employees.
 
    Options granted in 1991 and prior are fully vested and expire in 2000.
Options granted in 1992 have a ten year term and vest as to 33.33 percent one
year after grant, as to a cumulative 66.67
 



                                      F-15

<PAGE>   193
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

percent two years after grant and as to the entire amount three years after
grant. The options granted in 1993 have a ten year term and vest as to 50
percent 5 years after grant, as to a cumulative 75 percent 6 years after grant
and as to the entire amount 7 years after grant. The options are exercisable on
an accelerated basis beginning one year and ending three years after grant in
certain circumstances. If the market value per share of the Company's common
stock (sustained in all events for at least 60 days) exceeds $15, 25 percent of
the options shall become exercisable; in the event the market value per share
exceeds $20, 50 percent of the options shall become exercisable; and in the
event the market value exceeds $25, 100 percent shall become exercisable.
Unexercised options would be forfeited in the event of voluntary or involuntary
termination. Vested options are exercisable for a period of one year following
termination due to death, disability or retirement. In the event of termination
by the Company for any reason there is no prorata vesting of unvested options.
 
    The following table reflects activity with respect to Non-Qualified Stock
Options during 1991 through 1993:
 

<TABLE>
<CAPTION>
                                                                                        OPTION
                                                                     OPTIONS             PRICE
                                                                   OUTSTANDING         PER SHARE
                                                                   -----------     ------------------
<S>                                                                  <C>           <C>
Outstanding at December 31, 1990................................     1,803,923     $14.4375 to $24.24
Grants..........................................................         4,500     $14.625
Cancellations...................................................       (45,332)    $14.4375 to $24.24
                                                                     ---------
Outstanding at December 31, 1991................................     1,763,091     $14.4375 to $24.24
Grants..........................................................     1,099,000     $ 9.5625
Cancellations...................................................       (50,163)    $14.4375 to $24.24
                                                                     ---------
Outstanding at December 31, 1992................................     2,811,928     $ 9.5625 to $24.24
Grants..........................................................       800,000     $ 9.5625
Cancellations...................................................       (95,398)    $ 9.5625 to $24.24
Exercises.......................................................        (6,945)    $ 9.5625
                                                                     ---------
Outstanding at December 31, 1993................................     3,509,585     $ 9.5625 to $24.24
                                                                     =========
</TABLE>
 
    At December 31, 1993 options on 780,790 shares were available for future
grants.
 
    A "Phantom Unit" is the right to receive a cash payment in an amount equal
to the average trading price of the shares of common stock at the time the award
becomes payable. Awards are made for a specified period and are dependent upon
continued employment and the achievement of performance objectives established
by the Company. In December 1990 the Company awarded 211,362 Phantom Units and
in December 1991 313,262 shares of restricted stock were issued in exchange for
such units. Compensation expense is recognized over the period the awards are
earned based on the market price of the restricted stock on the date it was
issued ($8.00 per share). During 1990 and 1991 $0.2 million and $0.8 million,
respectively, were charged to expense with respect to such awards. The
unamortized portion of the award at December 31, 1991 ($1.4 million) was
reflected in Shareholders' Equity. The consummation of the Merger resulted in a
"change of control" as defined in the Plan and resulted in the vesting of the
awards and $1.4 million in compensation expense was recognized in 1992.
 
    In 1993 the Company issued 6,432 shares of restricted stock to certain
employees and 118,039 common shares in accordance with the terms of certain
other employee compensation plans.
 



                                      F-16

<PAGE>   194
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
(11)  PENSION AND OTHER EMPLOYEE BENEFIT PLANS
 
  Pension Plans
 
    Prior to the Spin-Off the Company was included in certain non-contributory
pension plans of SFP. The Santa Fe Pacific Corporation Retirement Plan (the "SFP
Plan") covered substantially all of the Company's officers and salaried
employees who were not covered by collective bargaining agreements. The Santa Fe
Pacific Corporation Supplemental Retirement Plan was an unfunded plan which
provided supplementary benefits, primarily to senior management personnel.
 
    The Company adopted, effective as of the date of the Spin-Off, a defined
benefit retirement plan (the "SFER Plan") covering substantially all salaried
employees not covered by collective bargaining agreements and a nonqualified
supplemental retirement plan (the "Supplemental Plan"). The Supplemental Plan
will pay benefits to participants in the SFER Plan in those instances where the
SFER Plan formula produces a benefit in excess of limits established by ERISA
and the Tax Reform Act of 1986. Benefits payable under the SFER Plan are based
on years of service and compensation during the five highest paid years of
service during the ten years immediately preceding retirement. Benefits accruing
to the Company's employees under the SFP Plan have been assumed by the SFER
Plan. The Company's funding policy is to contribute annually not less than the
minimum required by ERISA and not more than the maximum amount deductible for
income tax purposes. In the fourth quarter of 1993 the Company established a new
pension plan with respect to certain persons employed in foreign locations.
 
    The following table sets forth the funded status of the SFER Plan and the
Supplemental Plan at December 31, 1993 and 1992 (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                   SFER PLAN         SUPPLEMENTAL PLAN
                                                              --------------------  --------------------
                                                                1993       1992       1993       1992
                                                              --------   ---------  --------   ---------
<S>                                                             <C>        <C>         <C>        <C>
Plan assets at fair value, primarily invested in common
  stocks and U.S. and corporate bonds.....................       30.2       28.9         --         --
Actuarial present value of projected benefit obligations:
    Accumulated benefit obligations
        Vested............................................      (30.9)     (24.5)      (0.6)      (0.5)
        Nonvested.........................................       (1.5)      (1.4)        --         --
        Effect of projected future salary increases.......       (8.3)      (6.4)      (0.3)      (0.2)
                                                                -----      -----       ----       ----
Excess of projected benefit obligation over plan
  assets..................................................      (10.5)      (3.4)      (0.9)      (0.7)
Unrecognized net loss from past experience different from
  that assumed and effects of changes in assumptions......        6.4        0.7        0.3        0.2
Unrecognized net (asset) obligation being recognized over
  plan's average remaining service life...................       (1.0)      (1.1)       0.2        0.3
Additional minimum liability..............................         --         --       (0.3)      (0.3)
                                                                -----      -----       ----       ----
Accrued pension liability.................................       (5.1)      (3.8)      (0.7)      (0.5)
                                                                =====      =====       ====       ====
Major assumptions at year-end
    Discount rate.........................................        7.0%      8.25%       7.0%      8.25%
    Long-term asset yield.................................        9.5%       9.5%       9.5%       9.5%
    Rate of increase in future compensation...............       5.25%      5.25%      5.25%      5.25%

</TABLE>
 



                                      F-17

<PAGE>   195
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
    The following table sets forth the components of pension expense for the
SFER Plan and Supplemental Plan for 1993, 1992 and 1991 (in millions of
dollars):
 

<TABLE>
<CAPTION>
                                                     SFER PLAN                    SUPPLEMENTAL PLAN
                                          -------------------------------  -------------------------------
                                            1993       1992       1991       1993       1992       1991
                                          ---------  ---------  ---------  ---------  ---------  ---------
    <S>                                      <C>        <C>        <C>        <C>        <C>        <C>
    Service cost.....................        1.4        1.2        1.1         --         --         --
    Interest cost....................        2.6        2.4        2.3        0.1        0.1        0.1
    Return on plan assets............       (2.7)      (2.5)      (2.4)        --         --         --
    Net amortization and deferral....         --         --       (0.1)        --         --         --
                                            ----       ----       ----        ---        ---        ---
                                             1.3        1.1        0.9        0.1        0.1        0.1
                                            ====       ====       ====        ===        ===        ===

</TABLE>
 
    The Company also sponsors a pension plan covering certain hourly-rated
employees in California (the "Hourly Plan"). The Hourly Plan provides benefits
that are based on a stated amount for each year of service. The Company annually
contributes amounts which are actuarially determined to provide the Hourly Plan
with sufficient assets to meet future benefit payment requirements.
 
    The following table sets forth the components of pension expense for the
Hourly Plan for the years 1993, 1992 and 1991 (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                                   YEAR ENDED DECEMBER 31,
                                                                               -------------------------------
                                                                                 1993       1992       1991
                                                                               ---------  ---------  ---------
<S>                                                                             <C>        <C>        <C>
    Service cost.............................................................    0.2        0.2        0.2      
    Interest cost............................................................    0.7        0.7        0.7      
    Return on plan assets....................................................   (0.8)      (0.1)      (0.5)     
    Net amortization and deferral............................................    0.4       (0.4)       0.1      
                                                                                ----       ----       ----                  
                                                                                 0.5        0.4        0.5      
                                                                                ====       ====       ====
</TABLE>
 
    The following table sets forth the funded status of the Hourly Plan at
December 31, 1993 and 1992 (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                                             1993       1992      
                                                                                             ----       ----   
<S>                                                                                         <C>          <C>         
    Plan assets at fair value, primarily invested in fixed-rate securities...........         7.7         7.2   
    Actual present value of projected benefit obligations                                                       
        Accumulated benefit obligations                                                                         
            Vested...................................................................       (11.2)       (9.1)  
            Nonvested................................................................        (0.4)       (0.3)  
                                                                                            -----        ----
    Excess of projected benefit obligation over plan assets..........................        (3.9)       (2.2)  
    Unrecognized net (gain) loss from past experience different from that                                       
        assumed and effects of changes in assumptions................................         1.5        (0.3)  
    Unrecognized prior service cost..................................................         0.5         0.6   
    Unrecognized net obligation......................................................         1.5         1.6   
    Additional minimum liability.....................................................        (3.5)       (2.1)  
                                                                                            -----        ----
        Accrued pension liability....................................................        (3.9)       (2.4)  
    Major assumptions at year-end                                                           =====        ====            
        Discount rate................................................................         7.0%       8.25%   
        Expected long-term rate of return on plan assets.............................         8.5%       8.5 %   
                                                                                      
</TABLE>
 
    At December 31, 1993 the Company's additional minimum liability exceeded the
total of its unrecognized prior service cost and unrecognized net obligation by
$1.5 million. Accordingly, at 
 



                                      F-18

<PAGE>   196
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

December 31, 1993 the Company's retained earnings have been reduced by such 
amount, net of related taxes of $0.6 million.

  Postretirement Benefits Other Than Pensions
                                      
    The Company provides health care and life insurance benefits for
substantially all employees who retire under the provisions of a
Company-sponsored retirement plan and their dependents. Participation in the
plans is voluntary and requires a monthly contribution by the employee.
Effective January 1, 1993 the Company adopted the provisions of SFAS No.
106 -- "Employers' Accounting for Postretirement Benefits Other Than Pensions".
The Statement requires the accrual, during the years the employee renders
service, of the expected cost of providing postretirement benefits to the
employee and the employee's beneficiaries and covered dependents. The following
table sets forth the plan's funded status at December 31, 1993 and January 1,
1993 (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                           DECEMBER 31,     JANUARY 1,
                                                                               1993            1993
                                                                           ------------     ----------
    <S>                                                                        <C>              <C>
    Plan assets, at fair value............................................       --             --
    Accumulated postretirement benefit obligation                         
      Retirees............................................................      (3.6)          (3.1)
      Eligible active participants........................................      (1.2)          (0.9)
      Other active participants...........................................      (1.4)          (1.2)
                                                                               -----           ----
    Accumulated postretirement benefit obligation in excess of plan            
      assets..............................................................      (6.2)          (5.2)
    Unrecognized transition obligation....................................       5.0            5.2
    Unrecognized net loss from past experience different from             
      that assumed and from changes in assumptions........................       0.5            --
                                                                               -----           ----
    Accrued postretirement benefit cost...................................      (0.7)           --
                                                                               =====           ====
    Assumed discount rate.................................................       7.5%          8.25%
    Assumed rate of compensation increase.................................      5.25%          5.25%
                                                                               
</TABLE>
 
    The Company's net periodic postretirement benefit cost for 1993 includes the
following components (in millions of dollars):

<TABLE>
<S>                                                                                <C>
    Service costs........................................................          0.3
    Interest costs.......................................................          0.4
    Amortization of unrecognized transition obligation...................          0.3
                                                                                   ---
                                                                                   1.0
                                                                                   ===
</TABLE>
 
    In periods prior to 1993 the cost to the Company of providing health care
and life insurance benefits for qualified retired employees was recognized as
expenses when claims were paid. Such amounts totalled $0.4 million in 1991 and
$0.3 million in 1992.
 
    Estimated costs and liabilities have been developed assuming trend rates for
growth in future health care costs beginning with 10% for 1993 graded to 6%
(5.5% for post age 65) by the year 2000 and remaining constant thereafter.
Increasing the assumed health care cost trend rate by one percent each year
would increase the accumulated postretirement benefit obligation as of December
31, 1993 by $0.9 million and the aggregate of the service cost and interest cost
components of the net periodic postretirement benefit cost for 1994 by $0.2
million.
 
  Savings Plan 
           
    The Company has a savings plan, which became effective November 1, 1990,
available to substantially all salaried employees and intended to qualify as a
deferred compensation plan under 
 



                                      F-19

<PAGE>   197
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

Section 401(k) of the Internal Revenue Code (the "401(k) Plan"). The
Company will match employee contributions for an amount up to 4% of each
employee's base salary. In addition, if at the end of each fiscal year the
Company's performance for such year has exceeded certain predetermined criteria,
each participant will receive an additional matching contribution equal to 50%
of the regular matching contribution. The Company's contributions to the 401(k)
Plan, which are charged to expense, totaled $1.2 million in 1991, $1.3 million
in 1992 and $1.5 million in 1993. In the fourth quarter of 1993 the Company
established a new savings plan with respect to certain personnel employed in
foreign locations.
 
  Other Postemployment Benefits
                        
    In the fourth quarter of 1993 the Company adopted SFAS No.
112 -- "Employers' Accounting for Postemployment Benefits". The Statement
requires the accrual of the estimated costs of benefits provided by an employer
to former or inactive employees after employment but before retirement. Such
benefits include salary continuation, supplemental unemployment benefits,
severance benefits, disability-related benefits, job training and counseling and
continuation of benefits such as health care and life insurance coverage. The
adoption of SFAS No. 112 resulted in a charge to earnings of $1.8 million in
1993.
 
(12)  COMMITMENTS AND CONTINGENCIES
 
  Crude Oil Hedging Program
                     
    In the third quarter of 1990, the Company initiated a hedging program
designed to provide a certain minimum level of cash flow from its sales of crude
oil. Settlements were included in oil revenues in the period the oil is sold. In
the year ended December 31, 1990 hedges resulted in a reduction in oil revenues
of $10.7 million; in 1991 hedges resulted in an increase in oil revenues of
$41.7 million and in 1992 hedges resulted in an increase in oil revenues of $9.7
million. The Company had no open crude oil hedging contracts during 1993.
 
  Natural Gas Hedging Program
                       
    In the third quarter of 1992 the Company initiated a hedging program with
respect to its sales of natural gas. The Company has used various instruments
whereby monthly settlements are based on the differences between the price or
range of prices specified in the instruments and the settlement price of certain
natural gas futures contracts quoted on the New York Mercantile Exchange. In
instances where the applicable settlement price is less than the price specified
in the contract, the Company receives a settlement based on the difference; in
instances where the applicable settlement price is higher than the specified
prices the Company pays an amount based on the difference. The instruments
utilized by the Company differ from futures contracts in that there is no
contractual obligation which requires or allows for the future delivery of the
product. In 1992 and 1993 hedges resulted in a reduction in natural gas revenues
of $0.5 million and $8.2 million, respectively.
 
    At December 31, 1993 the Company had two open natural gas hedging contracts
covering approximately 1.2 Bcf during the six month period beginning March 1994.
The "approximate break-even price" (the average of the monthly settlement prices
of the applicable futures contracts which would result in no settlement being
due to or from the Company) with respect to such contracts is approximately
$1.82 per Mcf. In addition, certain parties hold options on contracts covering
approximately 4.8 Bcf during the seven month period beginning March 1994 at an
approximate break even price of $1.90 per Mcf. The Company has no other
outstanding natural gas hedging instruments.
 
  Indemnity Agreement With SFP
                       
    At the time of the Spin-Off, the Company and SFP entered into an agreement
to protect SFP from federal and state income taxes, penalties and interest that
would be incurred by SFP if the 
 



                                      F-20

<PAGE>   198
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

Spin-off were determined to be a taxable event resulting primarily from
actions taken by the Company during a one-year period that ended December 4,
1991. If the Company were required to make payments pursuant to the agreement,
such payments could have a material adverse effect on its financial condition;
however, the Company does not believe that it took any actions during such
one-year period that would have such an effect on the Spin-Off.
 
  Environmental Regulation
                 
    Federal, state and local laws and regulations relating to environmental
quality control affect the Company in all of its oil and gas operations. The
Company has been identified as one of over 250 potentially responsible parties
("PRPs") at a superfund site in Los Angeles County, California. The site was
operated by a third party as a waste disposal facility from 1948 until 1983. The
Environmental Protection Agency ("EPA") is requiring the PRPs to undertake
remediation of the site in several phases, which include site monitoring and
leachate control, gas control and final remediation. In 1989, the EPA and a
group of the PRPs entered into a consent decree covering the site monitoring and
leachate control phases of remediation. The Company is a member of the group
that is responsible for carrying out this first phase of work, which is expected
to be completed in five to eight years. The maximum liability of the group,
which is joint and several for each member of the group, for the first phase is
$37.0 million, of which the Company's share is expected to be approximately $2.4
million ($1.3 million after recoveries from working interest participants in the
unit at which the wastes were generated) payable over the period that the phase
one work is performed. The EPA and a group of PRPs of which the Company is a
member have also entered into a subsequent consent decree (which has not been
finally entered by the court) with respect to the second phase of work (gas
control). The liability of this group has not been capped, but is estimated to
be $130.0 million. The Company's share of costs of this phase, however, is
expected to be approximately of the same magnitude as that of the first phase
because more parties are involved in the settlement. The Company has provided
for costs with respect to the first two phases, but it cannot currently estimate
the cost of any subsequent phases of work or final remediation which may be
required by the EPA.
 
    In 1989, Adobe received requests from the EPA for information pursuant to
Section 104(e) of CERCLA with respect to the D.L. Mud and Gulf Coast Vacuum
Services superfund sites located in Abbeville, Louisiana. The EPA has issued its
record of decision at the Gulf Coast Site and on February 9, 1993 the EPA issued
to all PRP's at the site a settlement order pursuant to Section 122 of CERCLA.
Earlier, an emergency order pursuant to Section 106 of CERLA was issued on
December 11, 1992, for purposes of containment due to the Louisiana rainy
season. On December 15, 1993 the Company entered into a sharing agreement with
other PRP'S to participate in the final remediation of the Gulf Coast site. The
Company's share of the remediation is approximately $600,000 and includes its
proportionate share of those PRPs who do not have the financial resources to
provide their share of the work at the site. A former site owner has already
conducted remedial activities at the D.L. Mud Site under a state agency
agreement. The extent, if any, of any further necessary remedial activity at the
D.L. Mud Site has not been finally determined.
 
  Employment Agreements
              
    The Company has entered into employment agreements with certain key
employees. The initial term of each agreement expired on December 31, 1990 and,
on January 1, 1991 and beginning on each January 1 thereafter, is automatically
extended for one-year periods, unless by September 30 of any year the Company
gives notice that the agreement will not be extended. The term of the agreements
is automatically extended for 24 months following a change of control. The
consummation of the Merger constituted a change of control as defined in the
agreements.
 

 

                                      F-21

<PAGE>   199
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

    In the event that following a change of control employment is terminated
for reasons specified in the agreements, the employee would receive: (i) a lump
sum payment equal to two years' base salary; (ii) the maximum possible bonus
under the terms of the Company's incentive compensation plan; (iii) a lapse of
restrictions on any outstanding restricted stock grants and full payout of any
outstanding Phantom Units; (iv) cash payment for each outstanding stock option
equal to the amount by which the fair market value of the common stock exceeds
the exercise price of the option; and, (v) life, disability and health benefits
for a period of up to two years. In addition, payments and benefits under
certain employment agreements are subject to further limitations based on
certain provisions of the Internal Revenue Code.
 
  Interest Rate Swaps
                 
    Prior to the Merger, Adobe had entered into two interest rate swaps with a
bank with notional principal amounts of $15.0 mllion and $20.0 million. Under
the terms of the $20.0 million swap, which expires in April 1994, during any
quarterly period at the beginning of which a floating rate specified in the
agreement is less than 7.84%, the Company must pay the bank interest for such
period on the principal amount at the difference between the rates. Should the
floating rate be in excess of 7.84%, the bank must pay the Company interest for
such period on the principal amount at the difference between the rates. For the
period from the effective date of the Merger to December 31, 1992 the amount due
the bank in accordance with the terms of the $20.0 million swap totalled $0.6
million and the amount due the bank in 1993 totalled $0.9 million. For the
quarterly period which ends in April 1994, the amount due the bank is based on a
floating rate of 3.375%. The $15.0 million swap, which expired December 31,
1992, had terms similar to the $20.0 million swap and the amount due the bank
for the period subsequent to the Merger totaled $0.5 million.
 
  Operating Leases
             
    The Company has noncancellable agreements with terms ranging from one to ten
years to lease office space and equipment. Minimum rental payments due under the
terms of these agreements are: 1994 -- $6.1 million, 1995 -- $6.0 million,
1996 -- $5.5 million, 1997 -- $5.2 million, 1998 -- $4.4 million and $4.7
million thereafter. Rental payments made under the terms of noncancellable
agreements totaled $4.0 million in 1991,$4.5 million in 1992 and $5.5 million in
1993.
 
  Other Matters
         
    The Company has several long-term contracts ranging up to fifteen years for
the supply and transportation of approximately 30 million cubic feet per day of
natural gas. In the aggregate, these contracts involve a minimum commitment on
the part of the Company of approximately $10 million per year.
 
    There are other claims and actions, including certain other environmental
matters, pending against the Company. In the opinion of management, the amounts,
if any, which may be awarded in connection with any of these claims and actions
could be significant to the results of operations of any period but would not 
be material to the Company's consolidated financial position.
 
(13)  INCOME TAXES
 
    Effective January 1, 1993 the Company adopted the provisions of Statement of
Financial Accounting Standards No. 109 -- "Accounting for Income Taxes". The
adoption of SFAS No. 109 had no significant impact on the Company's provision
for income taxes.
 
    Through the date of the Spin-Off the taxable income or loss of the Company
was included in the consolidated federal income tax return filed by SFP. The
Company has filed separate consolidated federal income tax returns for periods
subsequent to the Spin-Off. The consolidated federal income 
 



                                      F-22

<PAGE>   200
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

tax returns of SFP have been examined through 1988 and all years prior
to 1981 are closed. Issues relating to the years 1981 through 1985 are being
contested through various stages of administrative appeal. The Company is
evaluating its position with respect to issues raised in a 1986 through 1988
audit. The Company believes adequate provision has been made for any adjustments
which might be assessed for all open years.
 
    During 1989, the Company received a notice of deficiency for certain state
franchise tax returns filed for the years 1978 through 1983 as part of the
consolidated tax returns of SFP. The years subsequent to 1983 are still subject
to audit. At December 31, 1993 Other Long-Term Obligations includes $20.6
million with respect to this matter. The Company intends to contest this matter.
 
    With the Merger of Adobe the Company succeeded to a net operating loss
carryforward that is subject to Internal Revenue Code Section 382 limitations
which annually limit taxable income that can be offset by such losses. Certain
changes in the Company's shareholders may impose additional limitations as well.
Losses carrying forward of $133.3 million expire beginning in 1998.
 
    At date of the Merger, Adobe had ongoing tax litigation related to a refund
claim for carryback of certain net operating losses denied by the Internal
Revenue Service. During 1991 Adobe successfully defended its claim in Federal
District Court and prevailed again in 1992 in the United States Court of Appeals
for the Fifth Circuit. The Internal Revenue Service had no further recourse to
litigation and a $16.2 million refund was reflected as Income Tax Refund
Receivable at December 31, 1992 and collected in 1993.
 
    Pretax income from continuing operations for the years ended December 31,
1993, 1992 and 1991 was taxed under the following jurisdictions:
 

<TABLE>
<CAPTION>
                                                                                 1993        1992        1991
                                                                                -------     ------      -----
    <S>                                                                         <C>          <C>        <C>
    Domestic...............................................................     (120.9)       2.7       34.8
    Foreign................................................................      (29.3)      (3.6)      (2.1)
                                                                                ------       ----       ----
                                                                                (150.2)      (0.9)      32.7
                                                                                ======       ====       ====
</TABLE>
 
    The Company's income tax expense (benefit) for the years ended December 31,
1993, 1992 and 1991 consisted of (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                                    1993    1992    1991
                                                                                   ------   -----   ----
    <S>                                                                            <C>      <C>     <C>
    Current           
        U.S. federal...........................................................     (1.3)    3.5    11.0
        State..................................................................     (1.2)    1.4     1.7
        Foreign................................................................      1.3     1.9     --
                                                                                    ----    ----    ----
                                                                                    (1.2)    6.8    12.7
                                                                                   -----    ----    ----
    Deferred          
        U.S. federal...........................................................    (65.6)   (3.5)    0.2
        U.S. federal tax rate change...........................................      2.6     --      --
        State..................................................................     (8.0)   (2.5)    1.3
        Foreign................................................................     (0.9)   (0.3)    --
                                                                                   -----    ----    ----
                                                                                   (71.9)   (6.3)    1.5
                                                                                   -----    ----    ----
                                                                                   (73.1)    0.5    14.2
                                                                                   =====    ====    ====
</TABLE>
 



                                      F-23

<PAGE>   201
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
    The Company's deferred income tax liabilities (assets) at December 31, 1993
and 1992 are composed of the following differences between financial and tax
reporting (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                                      1993         1992
                                                                                      -----       -----
    <S>                                                                               <C>         <C>
    Capitalized costs and write-offs..............................................     83.0       150.8
    Differences in Partnership basis..............................................     15.1        29.3
    State deferred liability......................................................      5.8        13.4
    Foreign deferred liability....................................................     13.7        15.5
                                                                                      -----       -----
    Gross deferred liabilities....................................................    117.6       209.0
                                                                                      -----       -----
    Accruals not currently deductible for tax purposes............................    (17.7)      (28.3)
    Alternative minimum tax carryforwards.........................................     (8.3)       (5.3)
    Net operating loss carryforwards..............................................    (46.7)      (56.4)
    Other.........................................................................     (0.5)       --
                                                                                      -----       -----
    Gross deferred assets.........................................................    (73.2)      (90.0)
                                                                                      -----       -----
    Deferred tax liability........................................................     44.4       119.0
                                                                                      =====       =====
</TABLE>
 
    The Company had no deferred tax asset valuation allowance at December 31,
1993 or 1992.
 
    A reconciliation of the Company's U.S. income tax expense (benefit) computed
by applying the statutory U.S. federal income tax rate to the Company's income
(loss) before income taxes for the years ended December 31, 1993, 1992 and 1991
is presented in the following table (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                              1993      1992      1991
                                                                             ------     -----     ----
    <S>                                                                      <C>        <C>       <C>
    U.S. federal income taxes (benefit) at statutory rate................    (52.6)     (0.3)     11.1
    Increase (reduction) resulting from:                    
      State income taxes, net of federal effect..........................     (1.0)      1.4       2.2
      Foreign income taxes in excess of U.S. rate........................     (0.8)      0.3       --
      Nondeductible amounts..............................................     (0.2)     (2.4)      --
      Effect of increase in statutory rate on deferred taxes.............      2.6       --        --
      Federal audit refund...............................................     (3.2)      --        --
      Amendment to tax sharing agreement with SFP........................     (1.2)      --        --
      Benefit of tax losses..............................................    (11.2)      --        --
      Prior period adjustments...........................................     (5.5)      --        --
      Other..............................................................     --         1.5       0.9 
                                                                             -----      ----      ----
                                                                             (73.1)      0.5      14.2
                                                                             =====      ====      ====
</TABLE>
 
    The Company increased its deferred tax liability in 1993 as a result of
legislation enacted during 1993 increasing the corporate tax rate from 34% to
35% commencing in 1993.
 
(14)  FAIR VALUE OF FINANCIAL INSTRUMENTS
 
    SFAS No. 107 "Disclosure About Fair Value of Financial Instruments" requires
the disclosure, to the extent practicable, of the fair value of financial
instruments which are recognized or unrecognized in the balance sheet. The fair
value of the financial instruments disclosed herein is not representative of the
amount that could be realized or settled, nor does the fair value amount
consider the tax consequences, if any, of realization or settlement. The
following table reflects the 
 



                                      F-24

<PAGE>   202
                        SANTA FE ENERGY RESOURCES, INC.
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)

financial instruments for which the fair value differs from the carrying amount
of such financial instrument in the Company's December 31, 1993 and 1992 balance
sheets (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                  1993                      1992
                                                          -------------------       -------------------
                                                          CARRYING       FAIR       CARRYING       FAIR
                                                           AMOUNT       VALUE        AMOUNT       VALUE
                                                          --------      -----       --------      -----
    <S>                                                     <C>          <C>          <C>          <C>
    Assets                               
        Trust Units....................................      10.4         11.3         10.4         10.5
    Liabilities                          
        Long-Term Debt (including current
          portion).....................................     449.7        482.2        546.2        572.2
        Convertible Preferred Stock....................      80.0        103.8         80.0         93.8
        Interest rate swap.............................        --          0.4           --          1.1
   
</TABLE>
 
    The fair value of the Trust Units and convertible preferred stock is based
on market prices. The fair value of the Company's fixed-rate long-term debt is
based on current borrowing rates available for financings with similar terms and
maturities. With respect to the Company's floating-rate debt, the carrying
amount approximates fair value. The fair value of the interest rate swap
represents the estimated cost to the Company over the remaining life of the
contract.
 
    At December 31, 1993 the Company had two open natural gas hedging contracts
and options outstanding on five additional contracts (see Note 12 -- Commitments
and Contingencies -- Natural Gas Hedging Contracts). Based on the settlement
prices of certain natural gas futures contracts as quoted on the New York
Mercantile Exchange on December 30, 1993, assuming all options are exercised,
the cost to the Company with respect to such contracts during 1994 would be
approximately $0.6 million.
 



                                      F-25

<PAGE>   203
                        SANTA FE ENERGY RESOURCES, INC.
                          SUPPLEMENTAL INFORMATION TO
                 CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)
 
OIL AND GAS RESERVES AND RELATED FINANCIAL DATA
 
    Information with respect to the Company's oil and gas producing activities
is presented in the following tables. Reserve quantities as well as certain
information regarding future production and discounted cash flows were
determined by independent petroleum consultants, Ryder Scott Company.
 
  Oil and Gas Reserves
               
    The following table sets forth the Company's net proved oil and gas reserves
at December 31, 1990, 1991, 1992 and 1993 and the changes in net proved oil and
gas reserves for the years ended December 31, 1991, 1992 and 1993.
 

<TABLE>
<CAPTION>
                                                       CRUDE OIL AND LIQUIDS (MMBBLS)                  NATURAL GAS (BCF)
                                                   --------------------------------------      ------------------------------------
                                                   U.S.     ARGENTINA   INDONESIA   TOTAL      U.S.   ARGENTINA   INDONESIA   TOTAL 
                                                   ----     ---------   ---------   -----      ----   ---------   ---------   ----- 
<S>                                                <C>        <C>         <C>       <C>        <C>      <C>         <C>       <C>   
Proved reserves at                                                                                                                  
 December 31, 1990..............................   222.3        --          --      222.3      185.9      --          --      185.9 
  Revisions of previous estimates...............    (1.9)       --          --       (1.9)       0.4      --          --        0.4 
  Improved recovery techniques..................    15.9        --          --       15.9        0.5      --          --        0.5 
  Extensions, discoveries and other                                                                                                 
   additions....................................     1.8        --          --        1.8       19.6      --          --       19.6 
  Purchases of minerals-in-place................     4.6       8.7          --       13.3        2.5      --          --        2.5 
  Sales of minerals-in-place....................    (2.4)       --          --       (2.4)      (5.5)     --          --       (5.5)
  Increase in ownership in Partnership..........     0.4        --          --        0.4        2.2      --          --        2.2 
  Production....................................   (20.0)     (0.2)         --      (20.2)     (34.8)     --          --      (34.8)
                                                   -----      ----        ----      -----      -----    ----        ----      -----
Proved reserves at                                                                                                                  
 December 31, 1991..............................   220.7       8.5          --      229.2      170.8      --          --      170.8 
  Revisions of previous estimates...............    14.4      (0.3)         --       14.1        7.3      --          --        7.3 
  Improved recovery techniques..................    17.0        --          --       17.0        1.3      --          --        1.3 
  Extensions, discoveries and other                                                                                                 
   additions....................................     1.3       1.3          --        2.6        5.6      --          --        5.6 
  Purchases of minerals-in-place................    13.5        --         7.2       20.7      141.5      --         0.6      142.1 
  Sales of minerals-in-place....................    (5.7)       --          --       (5.7)      (5.0)     --          --       (5.0)
  Increase in ownership in Partnership..........     0.2        --          --        0.2        1.6      --          --        1.6 
  Production....................................   (21.4)     (0.8)       (0.8)     (23.0)     (46.2)     --          --      (46.2)
                                                   -----      ----        ----      -----      -----    ----        ----      -----
Proved reserves at                                                                                                                  
 December 31, 1992..............................   240.0       8.7         6.4      255.1      276.9      --         0.6      277.5 
  Revisions to previous estimates...............   (11.9)      0.5         0.6      (10.8)      26.6      --         0.1       26.7 
  Improved recovery techniques..................    26.7        --          --       26.7         --      --          --         -- 
  Extensions, discoveries and other                                                                                                 
   additions....................................     3.4       0.5         2.3        6.2       29.5    26.4          --       55.9 
  Purchases of minerals-in-place................     3.2        --         0.7        3.9        9.8      --         0.1        9.9 
  Sales of minerals in place....................    (8.7)       --          --       (8.7)     (47.4)     --          --      (47.4)
  Increase in ownership in Partnership..........     0.1        --          --        0.1        0.8      --          --        0.8 
  Production....................................   (21.9)     (0.9)       (1.5)     (24.3)     (60.3)     --        (0.1)     (60.4)
                                                   -----      ----        ----      -----      -----    ----        ----      -----
Proved reserves at                                                                                                                  
  December 31, 1993.............................   230.9       8.8         8.5      248.2      235.9    26.4         0.7      263.0 
                                                   =====      ====        ====      =====      =====    ====        ====      =====
</TABLE>

                                             (Table continued on following page)
                                                                                
                                             

 
                                      F-26

<PAGE>   204
                        SANTA FE ENERGY RESOURCES, INC.
                          SUPPLEMENTAL INFORMATION TO
          CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)
 

<TABLE>
<CAPTION>
                                             CRUDE OIL AND LIQUIDS (MMBBLS)                       NATURAL GAS (BCF)
                                          --------------------------------------      ---------------------------------------
                                          U.S.     ARGENTINA   INDONESIA  TOTAL       U.S.     ARGENTINA   INDONESIA    TOTAL
                                          ----     ---------   ---------  ------      ----     ---------   ---------    -----
    <S>                                   <C>        <C>         <C>      <C>         <C>         <C>        <C>        <C>
    Proved developed reserves 
      at December 31               
        1990........................      176.8       --          --      176.8       169.4       --          --        169.4
        1991........................      179.2      5.4          --      184.6       154.2       --          --        154.2
        1992........................      194.6      5.6         6.4      206.6       250.2       --         0.6        250.8
        1993........................      178.8      5.5         6.7      191.0       206.0       --         0.7        206.7

</TABLE>
 
    Proved reserves are estimated quantities of crude oil and natural gas which
geological and engineering data indicate with reasonable certainty to be
recoverable in future years from known reservoirs under existing economic and
operating conditions. Proved developed reserves are proved reserves which can be
expected to be recovered through existing wells with existing equipment and
operating methods.
 
    Indonesian reserves represent an entitlement to gross reserves in accordance
with a production sharing contract. These reserves include estimated quantities
allocable to the Company for recovery of operating costs as well as quantities
related to the Company's net equity share after recovery of costs. Accordingly,
these quantities are subject to fluctuations with an inverse relationship to the
price of oil. If oil prices increase, the reserve quantities attributable to the
recovery of operating costs decline. Although this reduction would be offset
partially by an increase in the net equity share, the overall effect would be a
reduction of reserves attributable to the Company. At December 31, 1993, the
quantities include 0.6 million barrels which the Company is contractually
obligated to sell for $.20 per barrel.
 
    At December 31, 1993 the Company's reserves were 6.9 million barrels of
crude oil and liquids and 14.5 Bcf of natural gas lower than at December 31,
1992, reflecting the sale in 1993 of properties with reserves totalling 8.7
million barrels of crude oil and liquids and 47.4 Bcf of natural gas.
 
    At December 31, 1993, 1.9 million barrels of crude oil reserves and 19.7
billion cubic feet of natural gas reserves were subject to a 90% net profits
interest held by Santa Fe Energy Trust.
 



                                      F-27

<PAGE>   205
                        SANTA FE ENERGY RESOURCES, INC.
                          SUPPLEMENTAL INFORMATION TO
          CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)
 
  Estimated Present Value of Future Net Cash Flows
                                              
    Estimated future net cash flows from the Company's proved oil and gas
reserves at December 31, 1991, 1992 and 1993 are presented in the following
table (in millions of dollars, except as noted):
 

<TABLE>
<CAPTION>
                                                                       U.S.      ARGENTINA    INDONESIA      TOTAL
                                                                       ----      ---------    ---------      -----
    <S>                                                              <C>           <C>          <C>        <C>
    1993                                             
        Future cash inflows......................................     2,654.9      117.9        115.6       2,888.4
        Future production costs..................................    (1,547.2)     (65.9)       (78.7)     (1,691.8)
        Future development costs.................................      (216.7)     (32.4)        (8.9)       (258.0)
        Future income tax expenses...............................      (100.5)        --         (6.9)       (107.4)
                                                                     --------      -----        -----      --------
            Net future cash flows................................       790.5       19.6         21.1         831.2
        Discount at 10% for timing of cash flows.................      (308.5)     (12.1)        (8.2)       (328.8)
                                                                     --------      -----        -----      --------
        Present value of future net cash flows from                  
          proved reserves........................................       482.0        7.5         12.9         502.4
                                                                     ========      =====        =====      ========
        Average sales prices                                         
            Oil ($/Barrel).......................................        9.10       9.74        13.50
            Natural gas ($/Mcf)..................................        2.28       1.23         0.97
    1992                                             
        Future cash inflows......................................     3,709.8      132.9        105.8       3,948.5
        Future production costs..................................    (1,982.6)     (82.1)       (79.5)     (2,144.2)
        Future development costs.................................      (292.2)     (13.5)          --        (305.7)
        Future income tax expenses...............................      (286.9)      (1.0)        (9.5)       (297.4)
                                                                     --------      -----        -----      --------
            Net future cash flows................................     1,148.1       36.3         16.8       1,201.2
        Discount at 10% for timing of cash flows.................      (450.5)     (14.0)        (3.2)       (467.7)
                                                                     --------      -----        -----      --------
        Present value of future net cash flows from                  
          proved reserves........................................       697.6       22.3         13.6         733.5
                                                                     ========      =====        =====      ========
        Average sales prices                                         
            Oil ($/Barrel).......................................       13.30      15.28        16.46
            Natural gas ($/Mcf)..................................        2.01         --         0.97
    1991                                             
        Future cash inflows......................................     2,899.9      117.2           --       3,017.1
        Future production costs..................................    (1,655.3)     (76.1)          --      (1,731.4)
        Future development costs.................................      (242.2)     (13.7)          --        (255.9)
        Future income tax expenses...............................      (236.6)        --           --        (236.6)
                                                                     --------      -----        -----      --------
            Net future cash flows................................       765.8       27.4           --         793.2
        Discount at 10% for timing of cash flows.................      (320.0)      (9.6)          --        (329.6)
                                                                     --------      -----        -----      --------
        Present value of future net cash flows from  
          proved reserves........................................       445.8       17.8           --         463.6
                                                                     ========      =====        =====      ========
        Average sales prices                         
            Oil ($/Barrel).......................................       11.80      13.72           -- 
            Natural gas ($/Mcf)..................................        1.78         --           -- 
                                                                                                
</TABLE>
 



                                      F-28

<PAGE>   206
                        SANTA FE ENERGY RESOURCES, INC.
                          SUPPLEMENTAL INFORMATION TO
          CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)
 
    The following tables sets forth the changes in the present value of
estimated future net cash flows from proved reserves during 1991, 1992 and 1993
(in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                     U.S.       ARGENTINA     INDONESIA     TOTAL
                                                                     ----       ---------     ---------     -----
    <S>                                                             <C>           <C>           <C>         <C>
    1993                                             
      Balance at beginning of year..............................     697.6         22.3          13.6        733.5
                                                                    ------        -----         -----       ------
      Increase (decrease) due to:                                   
        Sales of oil and gas, net of production costs      
          of $189.5 million.....................................    (230.1)        (7.3)        (10.0)      (247.4)
        Net changes in prices and production costs..............    (325.1)        (7.7)          1.7       (331.1)
        Extensions, discoveries and improved recovery...........      94.8         14.8           7.0        116.6
        Purchases of minerals-in-place..........................      20.4           --           2.1         22.5
        Sales of minerals-in-place..............................     (84.7)          --            --        (84.7)
        Development costs incurred..............................      50.0          5.1            --         55.1
        Changes in estimated volumes............................      28.3          1.5           1.8         31.6
        Changes in estimated development costs..................      25.6        (24.1)         (8.9)        (7.4)
        Interest factor -- accretion of discount................      87.1          2.3           2.1         91.5
        Income taxes............................................     112.0          0.6           3.5        116.1
        Increase in ownership in Partnership....................       1.2           --            --          1.2
        Other...................................................       4.9           --            --          4.9
                                                                    ------        -----         -----       ------
                                                                    (215.6)       (14.8)         (0.7)      (231.1)
                                                                    ------        -----         -----       ------
                                                                     482.0          7.5          12.9        502.4
                                                                    ======        =====         =====       ======
</TABLE>
 
<TABLE>
<CAPTION>
                                                                     U.S.       ARGENTINA     INDONESIA     TOTAL
                                                                     ----       ---------     ---------     -----
    <S>                                                             <C>            <C>           <C>        <C>
    1992                                              
      Balance at beginning of year..............................     445.8         17.8            --        463.6
                                                                    ------        -----         -----       ------
      Increase (decrease) due to:                                   
        Sales of oil and gas, net of production costs      
          of $176.2 million.....................................    (236.6)        (8.4)         (6.3)      (251.3)
        Net changes in prices and production costs..............     191.7          7.8           3.5        203.0
        Extensions, discoveries and improved recovery...........      70.9          4.6            --         75.5
        Purchases of minerals-in-place..........................     230.6           --          24.1        254.7
        Sales of minerals-in-place..............................     (77.7)          --            --        (77.7)
        Development costs incurred..............................      26.5          3.1            --         29.6
        Changes in estimated volumes............................      63.4         (1.0)           --         62.4
        Changes in estimated development costs..................     (76.9)        (2.8)           --        (79.7)
        Interest factor -- accretion of discount................      58.7          1.8            --         60.5
        Income taxes............................................     (14.8)        (0.6)         (7.7)       (23.1)
        Increase in ownership in Partnership....................       1.9           --            --          1.9
        Other...................................................      14.1           --            --         14.1
                                                                    ------        -----         -----       ------
                                                                     251.8          4.5          13.6        269.9
                                                                    ------        -----         -----       ------
                                                                     697.6         22.3          13.6        733.5
                                                                    ======        =====         =====       ======
</TABLE>
 



                                      F-29

<PAGE>   207
                        SANTA FE ENERGY RESOURCES, INC.
                          SUPPLEMENTAL INFORMATION TO
          CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)
 

<TABLE>
<CAPTION>
                                                                    U.S.       ARGENTINA     INDONESIA     TOTAL
                                                                    ----       ---------     ---------     -----
    <S>                                                             <C>          <C>             <C>      <C>
    1991                                              
      Balance at beginning of year..............................     839.4         --            --        839.4
                                                                    ------       ----          ----       ------
      Increase (decrease) due to:                                   
        Sales of oil and gas, net of production costs      
          of $157.6 million.....................................    (221.0)      (1.2)           --       (222.2)
        Net changes in prices and production costs..............    (617.6)       7.9            --       (609.7)
        Extensions, discoveries and improved recovery...........      71.6         --            --         71.6
        Purchases of minerals-in-place..........................      10.4       24.8            --         35.2
        Sales of minerals-in-place..............................     (30.7)        --            --        (30.7)
        Development costs incurred..............................      54.0        0.7            --         54.7
        Changes in estimated volumes............................       2.3         --            --          2.3
        Changes in estimated development costs..................    (117.5)     (14.4)           --       (131.9)
        Interest factor -- accretion of discount................     123.5         --            --        123.5
        Income taxes............................................     233.5         --            --        233.5
        Increase in ownership in Partnership....................       4.6         --            --          4.6
        Other...................................................      93.3         --            --         93.3
                                                                    ------       ----          ----       ------
                                                                    (393.6)      17.8            --       (375.8)
                                                                    ------       ----          ----       ------
                                                                     445.8       17.8            --        463.6
                                                                    ======       ====          ====       ======
</TABLE>
 
    Estimated future cash flows represent an estimate of future net cash flows
from the production of proved reserves using estimated sales prices and
estimates of the production costs, ad valorem and production taxes, and future
development costs necessary to produce such reserves. No deduction has been made
for depletion, depreciation or any indirect costs such as general corporate
overhead or interest expense.
 
    The sales prices used in the calculation of estimated future net cash flows
are based on the prices in effect at year end. Such prices have been held
constant except for known and determinable escalations.
 
    Operating costs and ad valorem and production taxes are estimated based on
current costs with respect to producing oil and gas properties. Future
development costs are based on the best estimate of such costs assuming current
economic and operating conditions.
 
    Income tax expense is computed based on applying the appropriate statutory
tax rate to the excess of future cash inflows less future production and
development costs over the current tax basis of the properties involved. While
applicable investment tax credits and other permanent differences are considered
in computing taxes, no recognition is given to tax benefits applicable to future
exploration costs or the activities of the Company that are unrelated to oil and
gas producing activities.
 
    The information presented with respect to estimated future net revenues and
cash flows and the present value thereof is not intended to represent the fair
value of oil and gas reserves. Actual future sales prices and production and
development costs may vary significantly from those in effect at year-end and
actual future production may not occur in the periods or amounts projected. This
information is presented to allow a reasonable comparison of reserve values
prepared using standardized measurement criteria and should be used only for
that purpose.
 



                                      F-30

<PAGE>   208
                        SANTA FE ENERGY RESOURCES, INC.
                          SUPPLEMENTAL INFORMATION TO
          CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)
 
  Costs Incurred in Oil and Gas Producing Activities
 
    The following table includes all costs incurred, whether capitalized or
charged to expense at the time incurred (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                                                    OTHER
                                                              U.S.     ARGENTINA      INDONESIA     FOREIGN      TOTAL
                                                             ------    ---------      ---------     -------      -----
     <S>                                                      <C>         <C>            <C>         <C>         <C>
     1993                                               
       Property acquisition costs                       
         Unproved.......................................        6.4        --             1.8         3.8         12.0
         Proved.........................................       29.7        --             2.9          --         32.6
         Other..........................................        0.8        --              --          --          0.8
       Exploration costs................................       20.9       0.7             5.2        11.7         38.5
       Development costs................................       85.3       7.3             7.6          --        100.2
                                                              -----      ----            ----        ----        -----
                                                              143.1       8.0            17.5        15.5        184.1
                                                              =====      ====            ====        ====        =====
                                                        
     1992                                               
       Property acquisition costs                       
         Unproved.......................................       29.3       0.2             8.8         3.5         41.8
         Proved.........................................      294.1        --            59.4          --        353.5
         Other..........................................       65.6        --              --          --         65.6
       Exploration costs................................       18.4       2.1             2.9         8.9         32.3
       Development costs................................       56.8       3.0             1.8          --         61.6
                                                              -----      ----            ----        ----        -----
                                                              464.2       5.3            72.9        12.4        554.8
                                                              =====      ====            ====        ====        =====
     1991                                                                                                             
       Property acquisition costs                                                                                     
         Unproved.......................................        4.4        --              --         3.2          7.6
         Proved.........................................       29.0        --              --        34.1         63.1
         Other..........................................         --        --              --          --           --  
       Exploration costs................................       20.7        --              --         4.1         24.8
       Development costs................................       85.8        --              --         0.7         86.5
                                                              -----      ----            ----        ----        -----
                                                              139.9        --              --        42.1        182.0
                                                              =====      ====            ====        ====        =====
</TABLE> 



                                      F-31

<PAGE>   209
                        SANTA FE ENERGY RESOURCES, INC.
                          SUPPLEMENTAL INFORMATION TO
          CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)
 
  Capitalized Costs Related to Oil and Gas Producing Activities
 
    The following table sets forth information concerning capitalized costs at
December 31, 1993 and 1992 related to the Company's oil and gas operations (in
millions of dollars):
 

<TABLE>
<CAPTION>
                                                   1993                                               1992
                           -------------------------------------------------   --------------------------------------------------
                                                            OTHER                                                OTHER
                             U.S.    ARGENTINA  INDONESIA  FOREIGN   TOTAL      U.S.    ARGENTINA   INDONESIA   FOREIGN    TOTAL
                           ------    ---------  ---------  -------  --------   -----    ---------   ---------   -------   -------
<S>                        <C>          <C>       <C>       <C>     <C>        <C>          <C>         <C>       <C>     <C>      
Oil and gas properties                                                                                                             
    Unproved............       40.3      1.3       12.0     10.7        64.3       80.1      1.3        10.2       7.3        98.9 
    Proved..............    1,869.9     48.9       68.0       --     1,986.8    2,049.8     37.5        62.7        --     2,150.0 
    Other...............       13.2       --         --       --        13.2       82.0       --                    --        82.0 
Accumulated amortization                                                                                                           
  of unproved                                                                                                                      
  properties............      (14.6)    (1.2)      (2.8)    (9.9)      (28.5)     (23.6)    (1.0)       (1.7)     (2.6)      (28.9)
Accumulated depletion,                                                                                                             
  depreciation and                                                                                                                 
  impairment of proved                                                                                                             
  properties............   (1,181.9)    (7.9)     (22.4)      --    (1,212.2)  (1,200.0)    (4.6)       (2.3)       --    (1,206.9)
Accumulated depreciation                                                                                                           
  of other oil and gas                                                                                                             
  properties                   (4.3)      --         --       --        (4.3)      (7.5)      --          --        --        (7.5)
                           --------     ----      -----     ----    --------   --------     ----        ----      ----    --------
                              722.6     41.1       54.8      0.8       819.3      980.8     33.2        68.9       4.7     1,087.6
                           ========     ====      =====     ====    ========   ========     ====        ====      ====    ========
                                                                                                                
</TABLE>
 



                                      F-32

<PAGE>   210
                        SANTA FE ENERGY RESOURCES, INC.
                          SUPPLEMENTAL INFORMATION TO
          CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)
 
  Results of Operations From Oil and Gas Producing Activities
 
    The following table sets forth the Company's results of operations from oil
and gas producing activities for the years ended December 31, 1993, 1992 and
1991 (in millions of dollars):
 

<TABLE>
<CAPTION>
                                                                                                    OTHER
                                                                 U.S.    ARGENTINA    INDONESIA    FOREIGN      TOTAL
                                                               -------   ---------    ---------    -------    ---------
<S>                                                             <C>          <C>          <C>        <C>         <C>
1993                                                        
  Revenues..................................................     401.2       12.5          23.2         --        436.9
  Production costs..........................................    (166.9)      (5.2)        (13.2)        --       (185.3)
  Oil and gas systems and pipelines.........................      (4.2)        --            --         --         (4.2)
  Exploration, including dry hole costs.....................     (16.4)      (0.7)         (2.2)     (11.7)       (31.0)
  Depletion, depreciation, amortization and impairments.....    (218.8)      (3.6)        (21.2)      (6.7)      (250.3)
  Restructuring charges.....................................     (27.8)        --            --         --        (27.8)
  Gain (loss) on disposition of properties..................      (0.7)        --            --         --         (0.7)
                                                                ------      -----         -----      -----       ------
                                                                 (33.6)       3.0         (13.4)     (18.4)       (62.4)
  Income taxes..............................................      24.1       (0.9)          1.9         --         25.1
                                                                ------      -----         -----      -----       ------
                                                                  (9.5)       2.1         (11.5)     (18.4)       (37.3)
                                                                ======      =====         =====      =====       ======
1992                                                        
  Revenues..................................................     400.0       13.9          13.6         --        427.5
  Production costs..........................................    (160.2)      (5.5)         (7.3)        --       (173.0)
  Oil and gas systems and pipelines.........................      (3.2)        --            --         --         (3.2)
  Exploration, including dry hole costs.....................     (12.9)      (2.2)         (1.3)      (9.1)       (25.5)
  Depletion, depreciation, amortization and impairments.....    (136.7)      (3.7)         (2.7)      (1.6)      (144.7)
  Gain (loss) on disposition of properties..................      13.6         --            --         --         13.6
                                                                ------      -----         -----      -----       ------
                                                                 100.6        2.5           2.3      (10.7)        94.7
  Income taxes..............................................     (37.9)        --          (1.6)        --        (39.5)
                                                                ------      -----         -----      -----       ------
                                                                  62.7        2.5           0.7      (10.7)        55.2
                                                                ======      =====         =====      =====       ======
1991                                                        
  Revenues..................................................     376.1        3.7            --         --        379.8
  Production costs..........................................    (155.1)      (2.5)           --         --       (157.6)
  Exploration, including dry hole costs.....................     (15.5)      (1.5)           --       (1.7)       (18.7)
  Depletion, depreciation, amortization and impairments.....    (101.3)      (1.8)           --       (0.7)      (103.8)
  Gain (loss) on disposition of properties..................      (0.5)        --            --         --         (0.5)
                                                                ------      -----         -----      -----       ------
                                                                 103.7       (2.1)           --       (2.4)        99.2
  Income Taxes..............................................     (42.3)        --            --         --        (42.3)
                                                                ------      -----         -----      -----       ------
                                                                  61.4       (2.1)           --       (2.4)        56.9
                                                                ======      =====         =====      =====       ======
</TABLE>
 
    Income taxes are computed by applying the appropriate statutory rate to the
results of operations before income taxes. Applicable tax credits and allowances
related to oil and gas producing activities have been taken into account in
computing income tax expenses. No deduction has been made for indirect cost such
as corporate overhead or interest expense.
 



                                      F-33

<PAGE>   211
                       SANTA FE ENERGY RESOURCES, INC.
                         SUPPLEMENTAL INFORMATION TO
         CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)
 
SUMMARIZED QUARTERLY FINANCIAL DATA
 

<TABLE>
<CAPTION>
                                                                          1 QTR      2 QTR      3 QTR       4 QTR       YEAR
                                                                          -----      -----      -----       -----       ----
                                                                             (IN MILLIONS OF DOLLARS EXCEPT PER SHARE DATE)
<S>                                                                        <C>        <C>        <C>        <C>         <C>
  1993
    Revenues...........................................................    115.3      116.3      102.7       102.6       436.9
    Gross profit (a)...................................................     19.0       22.5        8.5      (130.7)      (80.7)
    Income (loss) from operations......................................     12.0       15.4        1.2      (141.6)(b)  (113.0)
    Net income (loss)..................................................     (0.4)       4.0        2.4       (83.1)      (77.1)
    Earnings (loss) attributable to common shares......................     (2.2)       2.3        0.6       (84.8)      (84.1)
    Earnings (loss) attributable to common shares per share............    (0.02)      0.02       0.01       (0.95)      (0.94)
    Average shares outstanding (millions)..............................     89.6       89.7       89.8        89.8        89.7
  1992
    Revenues...........................................................     78.5       97.7      127.9       123.4       427.5
    Gross profit (a)...................................................      2.9       34.1       32.0        19.4        88.4
    Income (loss) from operations......................................     (3.5)      25.1       24.4        11.5        57.5
    Net income (loss)..................................................     (8.8)       1.8        7.3        (1.7)       (1.4)
    Earnings (loss) attributable to common shares......................     (8.8)       1.0        5.5        (3.4)       (5.7)
    Earnings (loss) attributable to common shares per share............     (.14)       .01        .06        (.04)       (.07)
    Average shares outstanding (millions)..............................     64.3       72.7       89.4        89.5        79.0

</TABLE>
__________
 
  (a) Revenues less operating expenses other than general and administrative.
 
  (b) Includes charges of $99.3 million for impairment of oil and gas properties
      and $38.6 million for restructuring charges.
 



                                     F-34
<PAGE>   212
   
                        SANTA FE ENERGY RESOURCES, INC.
                CONSOLIDATED STATEMENT OF OPERATIONS (UNAUDITED)
                (IN MILLIONS OF DOLLARS, EXCEPT PER SHARE DATA)

<TABLE>
<CAPTION>
                                        THREE MONTHS ENDED
                                            MARCH 31,
                                       --------------------
                                         1994       1993
                                       ---------  ---------
<S>                                    <C>        <C>
Revenues
    Crude oil and liquids............  $    58.6  $    80.5
    Natural gas......................       28.1       28.6
    Natural gas systems..............         --        3.0
    Crude oil marketing and
      trading........................        2.7        2.3
    Other............................        0.9        0.9
                                       ---------  ---------
                                            90.3      115.3
                                       ---------  ---------
Costs and Expenses
    Production and operating.........       40.6       42.7
    Oil and gas systems and
      pipelines......................         --        1.1
    Exploration, including dry hole
      costs..........................        5.0        7.1
    Depletion, depreciation and
      amortization...................       32.1       37.6
    General and administrative.......        7.6        7.0
    Taxes (other than income)........        7.4        7.1
    Restructuring charges............        7.0         --
    Loss (gain) on disposition of oil
      and gas properties.............       (9.4)       0.7
                                       ---------  ---------
                                            90.3      103.3
                                       ---------  ---------
Income (Loss) from Operations........         --       12.0
    Interest income..................        0.2        1.2
    Interest expense.................      (10.3)     (13.7)
    Interest capitalized.............        0.9        1.1
    Other income (expense)...........        0.9       (0.2)
                                       ---------  ---------
Income (Loss) Before Income Taxes....       (8.3)       0.4
    Income tax benefit (expense).....        5.8       (0.8)
                                       ---------  ---------
Net Income (Loss)....................       (2.5)      (0.4)
Preferred dividend requirement.......       (1.8)      (1.8)
                                       ---------  ---------
Earnings (Loss) Attributable to
  Common Shares......................  $    (4.3) $    (2.2)
                                       =========  =========
Earnings (Loss) Attributable to
  Common Shares Per Share............  $   (0.05) $   (0.02)
                                       =========  =========
Weighted Average Number of Shares
  Outstanding (in millions)..........       89.9       89.6
                                       =========  =========
</TABLE>

   The accompanying notes are an integral part of these financial statements.


    

                                      F-35
<PAGE>   213
   
                        SANTA FE ENERGY RESOURCES, INC.
                           CONSOLIDATED BALANCE SHEET
                            (IN MILLIONS OF DOLLARS)

<TABLE>
<CAPTION>
                                        MARCH 31,     DECEMBER 31,
                                           1994           1993
                                       ------------   ------------
                                       (UNAUDITED)
<S>                                    <C>             <C>
               ASSETS
Current Assets
    Cash and cash equivalents........  $        3.2    $      4.8
    Accounts receivable..............          78.4          87.4
    Inventories......................           9.7           8.7
    Assets held for sale.............          49.1          59.5
    Other current assets.............          11.7          12.2
                                       ------------    ----------
                                              152.1         172.6
                                       ------------    ----------
Investment in Hadson Corporation.....          57.0          56.2
                                       ------------    ----------
Properties and Equipment, at cost
    Oil and gas (on the basis of
      successful efforts
      accounting)....................       2,081.0       2,064.3
    Other............................          27.0          27.3
                                       ------------    ----------
                                            2,108.0       2,091.6
    Accumulated depletion,
      depreciation, amortization and
      impairment.....................      (1,289.8)     (1,258.9)
                                       ------------    ----------
                                              818.2         832.7
                                       ------------    ----------
Other Assets
    Receivable under gas balancing
      arrangements...................           4.0           3.9
    Other............................          10.9          11.5
                                       ------------    ----------
                                               14.9          15.4
                                       ------------    ----------
                                       $    1,042.2    $  1,076.9
                                       ============    ==========

LIABILITIES AND SHAREHOLDERS' EQUITY
Current Liabilities
    Accounts payable.................  $       85.0    $     93.5
    Interest payable.................           0.8          10.2
    Current portion of long-term
      debt...........................          42.9          44.3
    Other current liabilities........          16.2          18.1
                                       ------------    ----------
                                              144.9         166.1
                                       ------------    ----------
Long-Term Debt.......................         403.5         405.4
                                       ------------    ----------
Deferred Revenues....................           8.2           8.6
                                       ------------    ----------
Other Long-Term Obligations..........          43.9          48.8
                                       ------------    ----------
Deferred Income Taxes................          41.0          44.4
Commitments and Contingencies 
  (Note 5)...........................            --            --
                                       ------------    ----------
Convertible Preferred Stock..........          80.0          80.0
                                       ------------    ----------
Shareholders' Equity
    Preferred stock..................            --            --
    Common stock.....................           0.9           0.9
    Paid-in capital..................         498.3         496.9
    Unamortized restricted stock
      awards.........................          (0.1)         (0.1)
    Accumulated deficit..............        (178.1)       (173.8)
    Foreign currency translation
      adjustment.....................          (0.3)         (0.3)
                                       ------------    ----------
                                              320.7         323.6
                                       ------------    ----------
                                       $    1,042.2    $  1,076.9
                                       ============    ==========
</TABLE>

   The accompanying notes are an integral part of these financial statements.

    

                                      F-36



<PAGE>   214
   
                        SANTA FE ENERGY RESOURCES, INC.
                CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED)
                            (IN MILLIONS OF DOLLARS)

<TABLE>
<CAPTION>
                                         THREE MONTHS ENDED
                                             MARCH 31,
                                       ----------------------
                                          1994        1993
                                       ----------  ----------
<S>                                    <C>         <C>
Operating Activities:
    Net income (loss)................  $     (2.5) $     (0.4)
    Adjustments to reconcile net
      income (loss) to net cash
      provided by operating
      activities:
        Depletion, depreciation and
          amortization...............        32.1        37.6
        Restructuring charges........         1.0          --
        Deferred income taxes........        (3.4)       (0.4)
        Net loss (gain) on
          disposition of
          properties.................        (9.4)        0.7
        Exploratory dry hole
          costs......................         0.6         1.3
        Other........................        (0.1)        0.7
    Changes in operating assets and
      liabilities:
        Decrease (increase) in
          accounts receivable........         9.0         2.3
        Decrease (increase) in income
          tax refund receivable......          --        16.2
        Decrease (increase) in
          inventories................        (1.0)       (4.7)
        Increase (decrease) in
          accounts payable...........         2.8        (3.4)
        Increase (decrease) in
          interest payable...........        (9.4)       (8.9)
        Increase (decrease) in income
          taxes payable..............        (0.1)        1.3
        Net change in other assets
          and liabilities............        (5.3)       (0.7)
                                       ----------  ----------
Net Cash Provided by Operating
  Activities.........................        14.3        41.6
                                       ----------  ----------
Investing Activities:
    Capital expenditures, including
      exploratory dry hole costs.....       (30.5)      (30.0)
    Acquisitions of producing
      properties, net of related
      debt...........................        (0.6)       (4.7)
    Net proceeds from sales of
      properties.....................        20.3         7.4
    Increase in partnership interest
      due to reinvestment............          --        (0.5)
                                       ----------  ----------
Net Cash Used in Investing
  Activities.........................       (10.8)      (27.8)
                                       ----------  ----------
Financing Activities:
    Net change in debt...............        (3.3)      (30.1)
    Cash dividends paid..............        (1.8)       (5.3)
                                       ----------  ----------
Net Cash Used in Financing
  Activities.........................        (5.1)      (35.4)
                                       ----------  ----------
Net Decrease in Cash and Cash
  Equivalents........................        (1.6)      (21.6)
Cash and Cash Equivalents at
  Beginning of Period................         4.8        83.8
                                       ----------  ----------
Cash and Cash Equivalents at End of
  Period.............................  $      3.2  $     62.2
                                       ==========  ==========
</TABLE>

   The accompanying notes are an integral part of these financial statements.
    


                                      F-37



<PAGE>   215
   

                        SANTA FE ENERGY RESOURCES, INC.
           CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (UNAUDITED)
                        (SHARES AND DOLLARS IN MILLIONS)

<TABLE>
<CAPTION>
                                                                                                 FOREIGN
                                                                    UNAMORTIZED                  CURRENCY
                                        COMMON STOCK                RESTRICTED                   TRANSLA-       TOTAL
                                       ---------------   PAID-IN      STOCK       ACCUMULATED      TION       SHAREHOLDERS'
                                       SHARES   AMOUNT   CAPITAL      AWARDS        DEFICIT     ADJUSTMENT      EQUITY
                                       ------   ------   -------    -----------   ------------  ----------    -------------
<S>                                      <C>     <C>     <C>         <C>          <C>            <C>           <C>
Balance at December 31, 1993.........    89.8    $0.9    $ 496.9     $  (0.1)     $  (173.8)     $ (0.3)       $ 323.6
  Issuance of common stock...........     0.1      --        1.4          --             --          --            1.4
  Net loss...........................      --      --         --          --           (2.5)         --           (2.5)
  Dividends declared.................      --      --         --          --           (1.8)         --           (1.8)
                                         ----    ----    -------     -------      ---------      ------        -------
Balance at March 31, 1994............    89.9    $0.9    $ 498.3     $  (0.1)     $  (178.1)     $ (0.3)       $ 320.7
                                         ====    ====    =======     =======      =========      ======        =======

Balance at December 31, 1992.........    89.5    $0.9    $ 494.3     $  (0.4)     $   (78.0)     $ (0.2)       $ 416.6
  Issuance of common stock...........     0.2      --        1.8          --             --          --            1.8
  Amortization of restricted                                                                            
   stock awards......................      --      --         --         0.1             --          --            0.1
  Net loss...........................      --      --         --          --           (0.4)         --           (0.4)
  Dividends declared.................      --      --         --          --           (5.3)         --           (5.3)
                                         ----    ----    -------     -------      ---------      ------        -------
Balance March 31, 1993...............    89.7    $0.9    $ 496.1     $  (0.3)     $   (83.7)     $ (0.2)       $ 412.8
                                         ====    ====    =======     =======      =========      ======        =======
</TABLE>


   The accompanying notes are an integral part of these financial statements.
    


                                      F-38



<PAGE>   216
   
                        SANTA FE ENERGY RESOURCES, INC.
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                                  (UNAUDITED)

(1)  ACCOUNTING POLICIES

    The unaudited consolidated financial statements of Santa Fe Energy
Resources, Inc. ("Santa Fe" or the "Company") reflect, in the opinion of
management, all adjustments, consisting only of normal and recurring
adjustments, necessary to present fairly the Company's financial position at
March 31, 1994 and the Company's results of operations and cash flows for the
three-month periods ended March 31, 1994 and 1993. Interim period results are
not necessarily indicative of results of operations or cash flows for a
full-year period.

    These financial statements and the notes thereto should be read in
conjunction with the Company's annual report on Form 10-K for the year ended
December 31, 1993.

(2)  CORPORATE RESTRUCTURING PROGRAM

    In the fourth quarter of 1993 the Company adopted a corporate restructuring
program which includes (i) the concentration of capital spending in the
Company's core operating areas; (ii) the disposition of non-core assets; (iii)
the elimination of the $0.04 per share quarterly common stock dividend; and
(iv) an evaluation of the Company's capital and cost structures.

    The Company's non-core asset disposition program includes the sale of its
natural gas gathering and processing assets to Hadson Corporation ("Hadson"),
the sale to Vintage Petroleum, Inc. of certain southern California and Gulf
Coast oil and gas producing properties and the sale to Bridge Oil (U.S.A.) Inc.
of certain Mid-Continent and Rocky Mountain oil and gas producing properties
and undeveloped acreage. Based on the evaluation of its capital and cost
structures, the Company (i) implemented a cost reduction program which includes
the reduction of its salaried work force by approximately 20%, an improvement in
the efficiency of its information systems and reductions in other general and
administrative costs and (ii) determined to proceed with a refinancing of
certain of its long-term debt.

    In implementing the corporate restructuring program, in 1993 the Company
recorded restructuring charges of $38.6 million comprised of (i) losses on
property dispositions of $27.8 million; (ii) long-term debt repayment penalties
of $8.6 million; and (iii) accruals for certain personnel benefits and related
costs of $2.2 million. In the first quarter of 1994 the Company recorded
additional restructuring charges of $7.0 million comprised of severance,
benefits and relocation expenses associated with the cost reduction program.

(3)  STATEMENT OF CASH FLOWS

    The Company made interest and income tax payments as follows during the
three months ended March 31, 1994 and 1993 (in millions of dollars):

<TABLE>
<CAPTION>
                                            1994       1993
                                            ----       ----
<S>                                         <C>        <C>
Interest payments....................       21.2       21.5
Income tax payments..................        0.8        0.8
</TABLE>
    


                                      F-39



<PAGE>   217
   
                        SANTA FE ENERGY RESOURCES, INC.
     NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)

(4)  INVESTMENT IN HADSON CORPORATION

    The following table summarizes the Company's investment in Hadson
Corporation ("Hadson") and the changes in such investment during the three
months ended March 31, 1994 (in millions of dollars):

<TABLE>
<CAPTION>
                                           INVESTMENT IN
                                        -------------------
                                        PREFERRED    COMMON
                                          STOCK      STOCK     TOTAL
                                        ---------    ------    -----
<S>                                        <C>        <C>       <C>
Investment at December 31, 1993......      48.7        7.5      56.2
Preferred dividends, paid in-kind....       1.4         --       1.4
Equity in loss attributable to common
  shares.............................        --       (0.6)     (0.6)
                                           ----       ----      ----
Investment at March 31, 1994.........      50.1        6.9      57.0
                                           ====       ====      ====
</TABLE>

    The following table summarizes Hadson's results of operations for the three
months ended March 31, 1994 (in millions of dollars):

<TABLE>
<S>                                       <C>
Revenues.............................      193.2
Expenses.............................     (192.8)
                                          ------
Income before income taxes...........        0.4
Income taxes.........................         --
                                          ------
Net income...........................        0.4
Preferred dividend requirement.......       (1.4)
                                          ------
Loss attributable to common
  shares.............................       (1.0)
                                          ======
</TABLE>

(5)  COMMITMENTS AND CONTINGENCIES

  NATURAL GAS HEDGING PROGRAM

    In the third quarter of 1992 the Company initiated a hedging program with
respect to its sales of natural gas. The Company has used various instruments
whereby monthly settlements are based on the differences between the price or
range of prices specified in the instruments and the settlement price of certain
natural gas futures contracts quoted on the New York Mercantile Exchange. In
instances where the applicable settlement price is less than the price specified
in the contract, the Company receives a settlement based on the difference; in
instances where the applicable settlement price is higher than the specified
prices the Company pays an amount based on the difference. The instruments
utilized by the Company differ from futures contracts in that there is no
contractual obligation which requires or allows for the future delivery of the
product. For the three months ended March 31, 1994 and 1993, hedges resulted in
a reduction in natural gas revenues of $0.3 million and $0.8 million,
respectively.

    The Company has open natural gas hedging contracts covering approximately
6.0 Bcf during the period March through September 1994. The "approximate
break-even price" (the average of the monthly settlement prices of the
applicable futures contracts which would result in no settlement being due to or
from the Company) with respect to such contracts is approximately $1.89 per Mcf.
The Company has no other outstanding natural gas hedging instruments.

  ENVIRONMENTAL REGULATION

    Federal, state and local laws and regulations relating to environmental
quality control affect the Company in all of its oil and gas operations. The
Company has been identified as one of over 250 potentially responsible parties
("PRPs") at a superfund site in Los Angeles County, California. The site was
operated by a third party as a waste disposal facility from 1948 until 1983. The
Environmental Protection Agency ("EPA") is requiring the PRPs to undertake
remediation of the site in
    


                                      F-40



<PAGE>   218
   
                        SANTA FE ENERGY RESOURCES, INC.
     NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)

several phases, which include site monitoring and leachate control, gas control
and final remediation. In 1989, the EPA and a group of the PRPs entered into a
consent decree covering the site monitoring and leachate control phases of
remediation. The Company is a member of the group that is responsible for
carrying out this first phase of work, which is expected to be completed in five
to eight years. The maximum liability of the group, which is joint and several
for each member of the group, for the first phase is $37.0 million, of which the
Company's share is expected to be approximately $2.4 million ($1.3 million after
recoveries from working interest participants in the unit at which the wastes
were generated) payable over the period that the phase one work is performed.
The EPA and a group of PRPs of which the Company is a member have also entered
into a subsequent consent decree with respect to the second phase of work (gas
control). The liability of this group has not been capped, but is estimated to
be $130.0 million. The Company's share of costs of this phase, however, is
expected to be approximately of the same magnitude as that of the first phase
because more parties are involved in the settlement. The Company has provided
for costs with respect to the first two phases, but it cannot currently estimate
the cost of any subsequent phases of work or final remediation which may be
required by the EPA.

    In 1989, Adobe received requests from the EPA for information pursuant to
Section 104(e) of CERCLA with respect to the D. L. Mud and Gulf Coast Vacuum
Services superfund sites located in Abbeville, Louisiana. The EPA has issued its
record of decision at the Gulf Coast Site and on February 9, 1993 the EPA issued
to all PRP's at the site a settlement order pursuant to Section 122 of CERCLA.
Earlier, an emergency order pursuant to Section 106 of CERLA was issued on
December 11, 1992, for purposes of containment due to the Louisiana rainy
season. On December 15, 1993 the Company entered into a sharing agreement with
other PRP'S to participate in the final remediation of the Gulf Coast site. The
Company's share of the remediation is approximately $600,000 and includes its
proportionate share of those PRPs who do not have the financial resources to
provide their share of the work at the site. A former site owner has already
conducted remedial activities at the D. L. Mud Site under a state agency
agreement. The extent, if any, of any further necessary remedial activity at the
D. L. Mud Site has not been finally determined.

    The Company has received a request for information from the EPA regarding
the Lee Acres Landfill CERCLA site in New Mexico. The Company advised the EPA
that it was not able to locate any information indicating that it had used that
facility. The Company is investigating its potential connection, if any, to this
facility and is not able to estimate its share of costs, if any, for the site at
this time.

    On April 4, 1994, the Company received a request from the EPA for
information pursuant to Section 104(a) of CERCLA and a letter ordering the
Company and seven other PRPs to negotiate with the EPA regarding implementation
of a remedial plan for a site located in Santa Fe Springs, California. The
Company owned the property on which the site is located from 1921 to 1932. After
the Company sold the property, hazardous wastes were allegedly disposed there by
a third party who operated a disposal site. The EPA estimates that the total
past and future costs for remediation will approximate $9 million. The Company
believes that it has valid defenses to liability. While it is still
investigating its exposure, if any, for the remedial costs, the Company does not
believe that any such costs would be material.

  EMPLOYMENT AGREEMENTS

    The Company has entered into employment agreements with certain key
employees. The initial term of each agreement expired on December 31, 1990 and,
on January 1, 1991 and beginning on each January 1 thereafter, is automatically
extended for one-year periods, unless by September 30 of any year the Company
gives notice that the agreement will not be extended. The term of the
    


                                      F-41



<PAGE>   219
   
                        SANTA FE ENERGY RESOURCES, INC.
     NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED) -- (CONTINUED)

agreements is automatically extended for 24 months following a change of
control. The consummation of the merger of Adobe Resources into the Company in
1992 constituted a change of control as defined in the agreements.

In the event that following a change of control employment is terminated for
reasons specified in the agreements, the employee would receive: (i) a lump sum
payment equal to two years' base salary; (ii) the maximum possible bonus under
the terms of the Company's incentive compensation plan; (iii) a lapse of
restrictions on any outstanding restricted stock grants and full payout of any
outstanding Phantom Units; (iv) cash payment for each outstanding stock option
equal to the amount by which the fair market value of the common stock exceeds
the exercise price of the option; and, (v) life, disability and health benefits
for a period of up to two years. In addition, payments and benefits under
certain employment agreements are subject to further limitations based on
certain provisions of the Internal Revenue Code.

  OTHER MATTERS

    The Company has several long-term contracts ranging up to fifteen years for
the supply and transportation of approximately 30 million cubic feet per day of
natural gas. In the aggregate, these contracts involve a minimum commitment on
the part of the Company of approximately $10 million per year.

    There are other claims and actions, including certain other environmental
matters, pending against the Company. In the opinion of management, the amounts,
if any, which may be awarded in connection with any of these claims and actions
could be significant to the results of operations of any period but would not be
material to the Company's consolidated financial position.
    


                                      F-42

<PAGE>   220
 
NO DEALER, SALESPERSON OR ANY OTHER
PERSON HAS BEEN AUTHORIZED TO GIVE                     10,700,000 SHARES
ANY INFORMATION OR TO MAKE ANY
REPRESENTATIONS OTHER THAN THOSE
CONTAINED IN OR INCORPORATED BY
REFERENCE IN THIS PROSPECTUS IN
CONNECTION WITH THE OFFER MADE BY
THIS PROSPECTUS AND, IF GIVEN OR
MADE, SUCH INFORMATION OR                               SANTA FE ENERGY
REPRESENTATIONS MUST NOT BE RELIED                      RESOURCES, INC.
UPON AS HAVING BEEN AUTHORIZED BY 
THE COMPANY OR ANY OF THE
UNDERWRITERS. NEITHER THE DELIVERY
OF THIS PROSPECTUS NOR ANY SALE
MADE HEREUNDER SHALL UNDER ANY
CIRCUMSTANCES CREATE ANY                                $      SERIES A
IMPLICATION THAT THERE HAS BEEN NO                CONVERTIBLE PREFERRED STOCK
CHANGE IN THE AFFAIRS OF THE
COMPANY SINCE THE DATE HEREOF. THIS             (DIVIDEND ENHANCED CONVERTIBLE)
PROSPECTUS DOES NOT CONSTITUTE AN                       STOCK SM--DEC SM
OFFER OR SOLICITATION BY ANYONE IN 
ANY JURISDICTION IN WHICH SUCH OFFER 
OR SOLICITATION IS NOT AUTHORIZED 
OR IN WHICH THE PERSON MAKING                   
SUCH OFFER IS NOT QUALIFIED TO DO                      
SO OR TO ANY PERSON TO WHOM IT IS 
UNLAWFUL TO MAKE SUCH SOLICITATION.        
- ---------------------------------------------
                                                             [LOGO]
         TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
   
                                         PAGE
                                         ----
<S>                                      <C>
Available Information..................     2
Documents Incorporated by Reference....     2
Certain Definitions....................     2
Prospectus Summary.....................     3
Investment Considerations..............    12            SALOMON BROTHERS
Ratios of Earnings to Fixed Charges....    17
Use of Proceeds........................    17
Capitalization.........................    18
Price Range of Common Stock and
  Dividends............................    19           LAZARD FRERES & CO.
Selected Financial and Operating
  Data.................................    20
Management's Discussion and Analysis of
  Financial Condition and Results of
  Operations...........................    22         PAINEWEBBER INCORPORATED
Business and Properties................    29
Management.............................    47
Description of Capital Stock...........    50
Description of the DECS................    55
Federal Income Tax Considerations......    61              PROSPECTUS
Underwriting...........................    62
Validity of the Securities.............    63
Experts................................    63
Index to Financial Statements..........   F-1           DATED MAY  , 1994
</TABLE>
    

<PAGE>   221
 
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
     All capitalized terms used and not defined in Part II of this Registration
Statement shall have the meanings assigned to them in the Prospectus which forms
a part of this Registration Statement.
 
ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.
 
     The estimated expenses payable by the registrant in connection with this
offering, other than underwriting discounts and commissions, are as follows:
 
<TABLE>
    <S>                                                                       <C>
    Securities Act registration fee......................................     $    75,323
    NASD filing fee......................................................          22,844
    Blue Sky qualification fees and expenses.............................          10,200
    Legal fees and expenses..............................................         250,000
    Accounting fees and expenses.........................................         235,000
    Trustee fees.........................................................          25,000
    Transfer agent and registrar fees....................................          30,000
    Stock exchange listing fee...........................................          73,400
    Printing and engraving costs.........................................         250,000
    Miscellaneous expenses...............................................          28,233
                                                                              -----------
      Total..............................................................     $ 1,000,000
                                                                              -----------
                                                                              -----------
</TABLE>
 
ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
     Subsection (a) of Section 145 of the General Corporation Law of the State
of Delaware empowers a corporation to indemnify any person who was or is a party
or is threatened to be made a party to any threatened, pending or completed
action, suit or proceeding, whether civil, criminal, administrative or
investigative (other than an action by or in the right of the corporation) by
reason of the fact that he is or was a director, officer, employee or agent of
the corporation, or is or was serving at the request of the corporation as a
director, officer, employee or agent of another corporation, partnership, joint
venture, trust or other enterprise, against expenses (including attorneys'
fees), judgments, fines and amounts paid in settlement actually and reasonably
incurred by him in connection with such action, suit or proceeding if he acted
in good faith and in a manner he reasonably believed to be in or not opposed to
the best interests of the corporation, and, with respect to any criminal action
or proceeding, had no reasonable cause to believe his conduct was unlawful.
 
     Subsection (b) of Section 145 empowers a corporation to indemnify any
person who was or is a party or is threatened to be made a party to any
threatened, pending or completed action or suit by or in the right of the
corporation to procure a judgment in its favor by reason of the fact that such
person acted in any of the capacities set forth above, against expenses
(including attorneys' fees) actually and reasonably incurred by him in
connection with the defense or settlement of such action or suit if he acted in
good faith and in a manner he reasonably believed to be in or not opposed to the
best interests of the corporation, except that no indemnification may be made in
respect of any claim, issue or matter as to which such person shall have been
adjudged to be liable to the corporation unless and only to the extent that the
Court of Chancery or the court in which such action or suit was brought shall
determine upon application that, despite the adjudication of liability but in
view of all the circumstances of the case, such person is fairly and reasonably
entitled to indemnity for such expenses which the Court of Chancery or such
other court shall deem proper.
 
     Section 145 further provides that to the extent a director or officer of a
corporation has been successful on the merits or otherwise in the defense of any
action, suit or proceeding referred to in
 
                                      II-1
<PAGE>   222
 
subsections (a) and (b) of Section 145 or in the defense of any claim, issue or
matter therein, he shall be indemnified against expenses (including attorneys'
fees) actually and reasonably incurred by him in connection therewith; that
indemnification provided for by Section 145 shall not be deemed exclusive of any
other rights to which the indemnified party may be entitled; that
indemnification provided by Section 145 shall, unless otherwise provided when
authorized or ratified, continue as to a person who has ceased to be a director,
officer, employee or agent and shall inure to the benefit of such person's
heirs, executors and administrators; and empowers the corporation to purchase
and maintain insurance on behalf of a director or officer of the corporation
against any liability asserted against him and incurred by him in any such
capacity, or arising out of his status as such, whether or not the corporation
would have the power to indemnify him against such liabilities under Section
145.
 
     Section 102(b)(7) of the General Corporation Law of the State of Delaware
provides that a certificate of incorporation may contain a provision eliminating
or limiting the personal liability of a director to the corporation or its
stockholders for monetary damages for breach of fiduciary duty as a director,
provided that such provision shall not eliminate or limit the liability of a
director (i) for any breach of the director's duty of loyalty to the corporation
or its stockholders, (ii) for acts or omissions not in good faith or which
involve intentional misconduct or a knowing violation of law, (iii) under
Section 174 of the Delaware General Corporation Law, or (iv) for any transaction
from which the director derived an improper personal benefit.
 
     Article NINTH of the Company's Restated Certificate of Incorporation states
that:
 
          "No director of the Corporation shall be personally liable to the
     Corporation or its stockholders for monetary damages from breach of
     fiduciary duty by such director as a director; provided, however, that
     this Article NINTH shall not eliminate or limit the liability of a
     director to the extent provided by applicable law (i) for any breach
     of the director's duty of loyalty to the Corporation or its
     stockholders, (ii) for acts or omissions not in good faith or which
     involve intentional misconduct or a knowing violation of law, (iii)
     under Section 174 of the General Corporation Law of the State of
     Delaware, or (iv) for any transaction from which the director derived
     an improper personal benefit. No amendment to or repeal of this
     Article NINTH shall apply to, or have any effect on, the liability or
     alleged liability of any director of the Corporation for or with
     respect to any facts or omissions of such director occurring prior to
     such amendment or repeal. If the General Corporation Law of the State
     of Delaware is amended to authorize corporate action further
     eliminating or limiting the personal liability of directors, then the
     liability of a director of the Corporation shall be eliminated or
     limited to the fullest extent permitted by the General Corporation Law
     of the State of Delaware, as so amended."
 
     Article VI of the Company's Bylaws further provides that the Company shall
indemnify its officers, directors and employees to the fullest extent permitted
by law. Pursuant to such provision, the Company has entered into agreements with
various of its officers, directors and employees which provide for
indemnification of such persons.
 
     Pursuant to the Underwriting Agreements filed as Exhibit 1.1 and Exhibit
1.2 hereto, the Underwriters agree to indemnify, under certain conditions, the
Company, its officers and directors and persons who control the Company within
the meaning of the Securities Act against certain liabilities.
 
     The Company maintains a $25,000,000 policy of officers and directors
liability insurance.
 
                                      II-2
<PAGE>   223
 
ITEM 16.  EXHIBITS
 
   
<TABLE>
    <S>      <C>
    1.1      Form of Underwriting Agreement relating to the Debentures
    1.2      Form of Underwriting Agreement relating to the Series A Convertible Preferred
             Stock
    3.1      Restated Certificate of Incorporation (filed as Exhibit 3.1 to the Registrant's
             Registration Statement on Form S-2 (Reg. No. 33-32831) and incorporated herein
             by reference)
    3.2      Bylaws, as amended (filed as Exhibit 3(b) to the Registrant's Annual Report on
             Form 10-K for the year ended December 31, 1992 and incorporated herein by
             reference)
    4.1      Form of Indenture
    4.2      Form of Debenture (included in Exhibit 4.1)
    4.3      Form of Certificate of Designations of the Series A Convertible Preferred Stock*
    4.4      Form of Stock Certificate representing shares of Series A Convertible Preferred
             Stock (filed as Exhibit 2 to the Registrant's Registration Statement on Form 8-A
             relating to the Series A Convertible Preferred Stock and incorporated herein by
             reference)
    4.5      Specimen Stock Certificate representing shares of Common Stock (filed as Exhibit
             4.1 to the Registrant's Registration Statement on Form S-1 (Reg. No. 33-32831)
             and incorporated herein by reference)
    4.6      Form of Certificate of Designation, Rights and Preferences of the Convertible
             Preferred Stock, Series 7% (filed as Exhibit 3(b) to the Registrant's
             Registration Statement on Form S-4 (Reg. No. 33-45043) and incorporated herein
             by reference)
    5.1      Opinion of Andrews & Kurth L.L.P. re. Legality of Securities
    7.1      Opinion of Andrews & Kurth L.L.P. re. Liquidation Preference
    8.1      Opinion of Andrews & Kurth L.L.P. re. Tax Matters (included in their opinion
             filed as Exhibit 5.1)
   23.1      Consent of Price Waterhouse
   23.2      Consent of Andrews & Kurth L.L.P. (included in their opinion filed as Exhibit
             5.1)
   23.3      Consent of Ryder Scott Company, independent petroleum engineers
   24.1      A power of attorney, pursuant to which amendments to this Registration Statement
             may be filed, is included on the signature page contained in Part II of this
             Registration Statement*
   24.2      Power of attorney of David M. Schulte, pursuant to which amendments to this
             Registration Statement may be filed*
   25.1      Statement of eligibility of Trustee
</TABLE>
    
 
- ---------------
 
* Previously filed
 
   
ITEM 17.  UNDERTAKINGS
    
 
     The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities offered herein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.
 
     Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to directors, officers and controlling persons of the
registrant pursuant to the foregoing provisions, or otherwise, the registrant
has been advised that in the opinion of the Securities and Exchange Commission
such indemnification is against public policy as expressed in the Act and is,
therefore, unenforceable. In the event that a claim for indemnification against
such liabilities (other than the payment by the registrant of expenses incurred
or paid by a director, officer or controlling person of the registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Act and will be governed by the final adjudication of
such issue.
 
                                      II-3
<PAGE>   224
 
     The undersigned registrant hereby undertakes that:
 
          (1) For purposes of determining any liability under the Securities Act
     of 1933, the information omitted from the forms of prospectuses filed as
     part of this registration statement in reliance upon Rule 430A and
     contained in a form of prospectus filed by the registrant pursuant to Rule
     424(b)(1) or (4) or 497(h) under the Securities Act shall be deemed to be
     part of this registration statement as of the time it was declared
     effective.
 
          (2) For the purpose of determining any liability under the Securities
     Act of 1933, each post-effective amendment that contains a form of
     prospectus shall be deemed to be a new registration statement relating to
     the securities offered therein, and the offering of such securities at that
     time shall be deemed to be the initial bona fide offering thereof.
 
                                      II-4
<PAGE>   225
 
                                   SIGNATURES
 
   
     Pursuant to the requirements of the Securities Act of 1933, Santa Fe Energy
Resources, Inc. certifies that it has reasonable grounds to believe that it
meets all of the requirements for filing on Form S-3 and has duly caused this
registration statement to be signed on its behalf by the undersigned, thereunto
duly authorized in the City of Houston, State of Texas, on May 11, 1994.
    
 
                                          SANTA FE ENERGY RESOURCES, INC.
 
                                          By:      /S/  DAVID L. HICKS
                                             ----------------------------------
                                                        David L. Hicks
                                                      Vice President-Law
 
     Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities and on the dates indicated.
 
   
<TABLE>
<CAPTION>
              SIGNATURE                               TITLE                        DATE
- -------------------------------------   ----------------------------------  -------------------
<S>                                     <C>                                 <C>
           JAMES L. PAYNE*              Chairman of the Board, President    May 11, 1994
- -------------------------------------   and Chief Executive Officer and
           James L. Payne               Director (Principal Executive
                                        Officer)

         MICHAEL J. ROSINSKI*           Vice President and Chief Financial  May 11, 1994
- -------------------------------------   Officer (Principal financial and
         Michael J. Rosinski            accounting officer)

           ROD F. DAMMEYER*                          Director               May 11, 1994
- -------------------------------------
           Rod F. Dammeyer

         WILLIAM E. GREEHEY*                         Director               May 11, 1994
- -------------------------------------
         William E. Greehey

           ROBERT D. KREBS*                          Director               May 11, 1994
- -------------------------------------
           Robert D. Krebs

          ALLAN V. MARTINI*                          Director               May 11, 1994
- -------------------------------------
          Allan V. Martini

          MICHAEL A. MORPHY*                         Director               May 11, 1994
- -------------------------------------
          Michael A. Morphy

          REUBEN F. RICHARDS*                        Director               May 11, 1994
- -------------------------------------
         Reuben F. Richards

           MARC J. SHAPIRO*                          Director               May 11, 1994
- -------------------------------------
           Marc J. Shapiro
</TABLE>
    
 
                                      II-5
<PAGE>   226
 
   
<TABLE>
<CAPTION>
              SIGNATURE                               TITLE                        DATE
- -------------------------------------   ----------------------------------  -------------------
<S>                                     <C>                                 <C>
           ROBERT F. VAGT*                           Director               May 11, 1994
- -------------------------------------
           Robert F. Vagt

         KATHRYN D. WRISTON*                         Director               May 11, 1994
- -------------------------------------
         Kathryn D. Wriston

           MELVYN N. KLEIN*                          Director               May 11, 1994
- -------------------------------------
           Melvyn N. Klein

          DAVID M. SCHULTE*                          Director               May 11, 1994
- -------------------------------------
          David M. Schulte

*By:   /s/  DAVID L. HICKS
- -------------------------------------
            David L. Hicks,
           Attorney-in-fact
</TABLE>
    
 
                                      II-6

<PAGE>   1





                        Santa Fe Energy Resources, Inc.

                                  $100,000,000

                  __% Senior Subordinated Debentures Due 2004

                             Underwriting Agreement


                                                              New York, New York
                                                                    May __, 1994


Salomon Brothers Inc
Dillon, Read & Co. Inc.
Lazard Freres & Co.
Chemical Securities Inc.
c/o Salomon Brothers Inc
Seven World Trade Center
New York, New York 10048


Dear Sirs:

                 Santa Fe Energy Resources, Inc., a Delaware  corporation (the
"Company"), proposes to sell to the underwriters named in Schedule I hereto
(the "Underwriters"), $100,000,000 principal amount of its    __% Senior
Subordinated Debentures Due 2004 (the "Securities"), to be issued under an
indenture (the "Indenture") to be dated as of May (  ), 1994, between the
Company and First National Bank of Boston, as trustee (the "Trustee").

                 1.  Representations and Warranties.  The Company represents
and warrants to, and agrees with, each Underwriter as set forth below in this
Section 1.  Certain terms used in this Section 1 are defined in paragraph (c)
hereof.

                 (a)  The Company meets the requirements for use of Form S-3
         under the Securities Act of 1933 (the "Act") and has filed with the
         Securities and Exchange Commission (the "Commission") a registration
         statement (file number 33-52849) on such Form, including a related
         preliminary prospectus, for the registration under the Act of the
         offering and sale of the Securities.  The Company may have filed one
         or more amendments thereto, including the related preliminary
         prospectus, each of
<PAGE>   2
                                                                               2

         which has previously been furnished to you.  The Company will next
         file with the Commission either:  (i) prior to effectiveness of such
         registration statement, a further amendment to such registration
         statement, including the form of final prospectus or  (ii) a final
         prospectus in accordance with Rules 430A and 424(b)(1) or (4).  In the
         case of clause (ii), the Company has included in such registration
         statement, as amended at the Effective Date, all information (other
         than Rule 430A Information) required by the Act and the rules
         thereunder to be included in the Prospectus with respect to the
         Securities and the offering thereof.  As filed, such amendment and
         form of final prospectus, or such final prospectus, shall contain all
         Rule 430A Information, together with all other such required
         information, with respect to the Securities and the offering thereof
         and, except to the extent the Underwriters shall agree in writing to a
         modification, shall be in all substantive respects in the form
         furnished to you prior to the Execution Time or, to the extent not
         completed at the Execution Time, shall contain only such specific
         additional information and other changes (beyond that contained in the
         latest Preliminary Prospectus) as the Company has advised you, prior
         to the Execution Time, will be included or made therein.

                 (b)  On the Effective Date, the Registration Statement did or
         will, and when the Prospectus is first filed (if required) in
         accordance with Rule 424(b) and on the Closing Date, the Prospectus
         (and any supplements thereto) will, comply in all material respects
         with the applicable requirements of the Act and the Securities
         Exchange Act of 1934 (the "Exchange Act") and the respective rules
         thereunder; on the Effective Date, the Registration Statement did not
         or will not contain any untrue statement of a material fact or omit to
         state any material fact required to be stated therein or necessary in
         order to make the statements therein not misleading; and, on the
         Effective Date, the Prospectus, if not filed pursuant to Rule 424(b),
         did not or will not, and on the date of any filing pursuant to Rule
         424(b) and on the Closing Date, the Prospectus (together with any
         supplement thereto) will not, include any untrue statement of a
         material fact or omit to state a material fact necessary in order to
         make the statements therein, in the light of the circumstances under
         which they were made, not misleading; provided,
<PAGE>   3
                                                                               3

         however, that the Company makes no representations or warranties as to
         (i) that part of the Registration Statement which constitutes the
         Statement of Eligibility and Qualification (Form T-1) under the Trust
         Indenture Act of 1939, as amended (the "Trust Indenture Act"), of the
         Trustee or (ii) the information contained in or omitted from the
         Registration Statement or the Prospectus (or any supplement thereto)
         in reliance upon and in conformity with information furnished in
         writing to the Company by or on behalf of any Underwriter specifically
         for inclusion in the Registration Statement or the Prospectus (or any
         supplement thereto).

                 (c)  The terms which follow, when used in this Agreement,
         shall have the meanings indicated.  The term "the Effective Date"
         shall mean each date that the Registration Statement and any
         post-effective amendment or amendments thereto became or become
         effective and each date after the date hereof on which a document
         incorporated by reference in the Registration Statement is filed.
         "Execution Time" shall mean the date and time that this Agreement is
         executed and delivered by the parties hereto.  "Preliminary
         Prospectus" shall mean any preliminary prospectus referred to in
         paragraph (a) above and any preliminary prospectus included in the
         Registration Statement at the Effective Date that omits Rule 430A
         Information.  "Prospectus" shall mean the prospectus relating to the
         Securities that is first filed pursuant to Rule 424(b) after the
         Execution Time or, if no filing pursuant to Rule 424(b) is required,
         shall mean the form of final prospectus relating to the Securities
         included in the Registration Statement at the Effective Date.
         "Registration Statement" shall mean the registration statement
         referred to in paragraph (a) above, including incorporated documents,
         exhibits and financial statements, as amended at the Execution Time
         (or, if not effective at the Execution Time, in the form in which it
         shall become effective) and, in the event any post-effective amendment
         thereto becomes effective prior to the Closing Date (as hereinafter
         defined), shall also mean such registration statement as so amended.
         Such term shall include any Rule 430A Information deemed to be
         included therein at the Effective Date as provided by Rule 430A.
         "Rule 424" and "Rule 430A" refer to such rules or regulations under
         the Act.  "Rule 430A Information" means
<PAGE>   4
                                                                               4

         information with respect to the Securities and the offering thereof
         permitted to be omitted from the Registration Statement when it
         becomes effective pursuant to Rule 430A.  Any reference herein to the
         Registration Statement, a Preliminary Prospectus or the Prospectus
         shall be deemed to refer to and include the documents or portions
         thereof incorporated by reference therein pursuant to Item 12 of Form
         S-3 which were filed under the Exchange Act on or before the Effective
         Date of the Registration Statement or the issue date of such
         Preliminary Prospectus or the Prospectus, as the case may be; and any
         reference herein to the terms "amend", "amendment" or "supplement"
         with respect to the Registration Statement, any Preliminary Prospectus
         or the Prospectus shall be deemed to refer to and include the filing
         of any document under the Exchange Act after the Effective Date of the
         Registration Statement, or the issue date of any Preliminary
         Prospectus or the Prospectus, as the case may be, deemed to be
         incorporated therein by reference.

                 (d)  The Company is qualified and in good standing to do
         business as a foreign corporation under the laws of the States listed
         on Annex A hereto and is not required to be qualified to do business
         in any other jurisdiction, excluding such jurisdictions where failure
         to so qualify would not have a material adverse effect on the
         earnings, financial condition, business affairs or business prospects
         of the Company and its subsidiaries, taken as a whole.

                 (e)  The execution and delivery of this Agreement does not,
         and the performance of this Agreement and the consummation of the
         transactions herein contemplated will not, result in a breach or
         violation of any of the terms and provisions of, or constitute a
         default (or result in a required repurchase of securities or repayment
         of debt) under (A) any statute, rule, regulation or order of any
         United States governmental agency or body or any United States court
         having jurisdiction over the Company or any of its properties, (B) any
         agreement or instrument that is material to the business of the
         Company and to which the Company is a party or by which the Company is
         bound or to which any of the properties of the Company is subject or
         (C) the Restated Certificate of Incorporation or By-Laws of the
         Company, except in the case of clauses (A) or (B) where such breach,
         violation or default would not have a
<PAGE>   5
                                                                               5

         material adverse effect on the on the earnings, financial condition,
         business affairs or business prospects of the Company and its
         subsidiaries, taken as a whole.

                 (f)  No consent, approval, authorization, or order,
         registration or qualification of or with any court or governmental
         agency or body of the United States is required to be obtained by the
         Company for the consummation of the transactions contemplated by this
         Agreement, except such as may have been obtained under the Act, the
         Exchange Act or the Trust Indenture Act, and such of the foregoing as
         may be required under the securities or blue sky laws of any
         jurisdiction in connection with the purchase and distribution of the
         Securities by the Underwriters.

                 (g)  Except as disclosed in the Prospectus or in any document
         incorporated therein by reference, there is no action, suit or
         proceeding before or by any court or governmental agency or body,
         domestic or foreign, pending or, to the knowledge of the Company,
         threatened against or affecting the Company, which is required to be
         disclosed in the Registration Statement, or which if adversely
         determined, would individually or in the aggregate, have a material
         adverse effect on the earnings, financial condition, business affairs
         or business prospects of the Company and its subsidiaries, taken as a
         whole.

                 (h)  The Company is in compliance with all applicable federal,
         state and local environmental laws and regulations and all
         environmental laws and regulations of each foreign jurisdiction in
         which it conducts business, including, without limitation, those
         applicable to emissions to the environment, waste management and waste
         disposal (collectively the "Environmental Laws"), except as disclosed
         in the Prospectus or any document incorporated therein by reference or
         where such noncompliance would not have a material adverse effect on
         the earnings, financial condition, business affairs or business
         prospects of the Company.  To the Company's knowledge under current
         law and interpretation, there are no circumstances that would prevent
         or materially increase the cost of such compliance in the future.
<PAGE>   6
                                                                               6

                 (i)  Except as disclosed in the Prospectus or in any document
         incorporated therein by reference, there is no claim under any
         Environmental Law, including common law, pending or, to the Company's
         knowledge, threatened against or affecting the Company, except for
         such claims which, if determined adversely to the Company, would not
         have a material adverse effect on the earnings, financial condition,
         business affairs or business prospects of the Company and its
         subsidiaries, taken as a whole, ("Environmental Claim"), and, to the
         Company's knowledge, under applicable law there are no past or present
         actions, activities, circumstances, events or incidents, including,
         without limitation, releases of any material into the environment that
         could reasonably be expected to form the basis of any Environmental
         Claim against or affecting the Company.

                 (j)  (a) The Company has good title to its producing oil and
         gas properties, free and clear of all liens, encumbrances and defects,
         except (i) those described in the Prospectus or in any document
         incorporated therein by reference (ii) liens securing taxes and other
         governmental charges, or claims of materialmen, mechanics and similar
         persons, not yet due and payable, (iii) liens and encumbrances under
         operating agreements, unitization and pooling agreements, and gas
         sales contracts, securing payment of amounts not yet due and payable
         and of a scope and nature customary in the oil and gas industry and
         (iv) liens, encumbrances and defects that do not, individually or in
         the aggregate, materially affect the value of such oil and gas
         properties or materially interfere with the Company's ability to
         conduct its business as currently conducted or to utilize such
         properties for their intended purposes; and (b) except to the extent
         described in the Prospectus or in any document incorporated therein by
         reference, the leases, options to lease, drilling concessions or other
         arrangements held by the Company reflect in all material respects the
         right of the Company to explore the unexplored and undeveloped acreage
         described in the Prospectus under the headings "Business -- Domestic
         Exploration Activities,"--International Exploration Activities," 
         "-- Domestic Acreage," and "Foreign Acreage," and the care taken by
         the Company with respect to acquiring or otherwise procuring such
         leases, options to lease, drilling concessions and other arrangements
         was generally consistent with
                
<PAGE>   7
                                                                               7

         standard industry practices for acquiring or procuring leases to
         explore acreage for hydrocarbons.

                 2.  Purchase and Sale.  Subject to the terms and conditions
and in reliance upon the representations and warranties herein set forth, the
Company agrees to sell to each Underwriter, and each Underwriter agrees,
severally and not jointly, to purchase from the Company, at a purchase price of
(100%) of the principal amount thereof, plus accrued interest, if any, on the
Securities from May __,  1994, to the Closing Date, the principal amount of the
Securities set forth opposite such Underwriter's name in Schedule I hereto.

                 3.  Delivery and Payment.  Delivery of and payment for the
Securities shall be made at 9:30 AM, New York City time, on May __, 1994, which
date and time may be postponed by agreement between the Underwriters and the
Company or as provided in Section 9 hereof (such date and time of delivery and
payment for the Securities being herein called the "Closing Date").  Delivery
of the Securities shall be made to the Underwriters against payment by the
several Underwriters of the purchase price thereof less an amount equal to one
day's interest on such purchase price based upon an annual interest rate equal
to the closing Federal Funds Rate two business days prior to the Closing Date
plus ____ %, into the Company's account at (BANK) (account #___________) by
wire transfer in immediately available funds.  Delivery of the Securities shall
be made at such location as the Underwriters shall reasonably designate, which
location shall be designated at least one business day in advance of the
Closing Date, and payment for the Securities shall be made at the office of
Cravath, Swaine & Moore, Worldwide Plaza, 825 Eighth Avenue, New York, New
York.  Certificates for the Securities shall be registered in such names and in
such denominations as the Underwriters may request not less than three full
business days in advance of the Closing Date.

                 The Company agrees to have the Securities available for
inspection, checking and packaging by the Underwriters in New York, New York,
not later than 1:00 PM on the business day prior to the Closing Date.


                 4.  Offering by Underwriters.  It is understood that the
several Underwriters propose to offer the Securities for sale to the public as
set forth in the Prospectus.
<PAGE>   8
                                                                               8


                 5.  Agreements.  The Company agrees with the several
Underwriters that:

                 (a)  Subject to the following sentence, the Company will use
         its reasonable best efforts to cause the Registration Statement, if
         not effective at the Execution Time, and any amendment thereof, to
         become effective.  Prior to the termination of the offering of the
         Securities, the Company will not file any amendment of the
         Registration Statement or supplement to the Prospectus unless the
         Company has furnished the Underwriters a copy for their review prior
         to filing and will not file any such proposed amendment or supplement
         to which the Underwriters reasonably object.  Subject to the foregoing
         sentence, if the Registration Statement has become or becomes
         effective pursuant to Rule 430A, or filing of the Prospectus is
         otherwise required under Rule 424(b), the Company will cause the
         Prospectus, properly completed, and any supplement thereto to be filed
         with the Commission pursuant to the applicable paragraph of Rule
         424(b) within the time period prescribed and will provide evidence
         satisfactory to the Underwriters of such timely filing.  The Company
         will promptly advise the Underwriters (i) when the Registration
         Statement, if not effective at the Execution Time, and any amendment
         thereto, shall have become effective, (ii) when the Prospectus, and
         any supplement thereto, shall have been filed (if required) with the
         Commission pursuant to Rule 424(b), (iii) when, prior to termination
         of the offering of the Securities, any amendment to the Registration
         Statement shall have been filed or become effective, (iv) of any
         request by the Commission for any amendment of the Registration
         Statement or supplement to the Prospectus or for any additional
         information, (v) of the issuance by the Commission of any stop order
         suspending the effectiveness of the Registration Statement or the
         institution or threatening of any proceeding for that purpose and (vi)
         of the receipt by the Company of any notification with respect to the
         suspension of the qualification of the Securities for sale in any
         jurisdiction or the initiation or threatening of any proceeding for
         such purpose.  The Company will use its reasonable best efforts to
         prevent the issuance of any such stop order and, if issued, to obtain
         as soon as possible the withdrawal thereof.
<PAGE>   9
                                                                               9

                 (b)  If, at any time when a prospectus relating to the
         Securities is required to be delivered under the Act, any event occurs
         as a result of which the Prospectus as then supplemented would include
         any untrue statement of a material fact or omit to state any material
         fact necessary to make the statements therein, in the light of the
         circumstances under which they were made, not misleading, or if it
         shall be necessary to amend the Registration Statement or supplement
         the Prospectus to comply with the Act or the Exchange Act or the
         respective rules thereunder, the Company promptly will (i) prepare and
         file with the Commission, subject to the second sentence of paragraph
         (a) of this Section 5, an amendment or supplement which will correct
         such statement or omission or effect such compliance and (ii) supply
         any supplemented Prospectus to you in such quantities as you may
         reasonably request.

                 (c)  As soon as practicable, the Company will make generally
         available to its security holders and to the Underwriters an earnings
         statement or statements of the Company and its subsidiaries which will
         satisfy the provisions of Section 11(a) of the Act and Rule 158 under
         the Act.

                 (d)  The Company will furnish to the Underwriters and counsel
         for the Underwriters, without charge, signed copies of the
         Registration Statement (including exhibits thereto) and, so long as
         delivery of a prospectus by an Underwriter or dealer may be required
         by the Act, as many copies of each Preliminary Prospectus and the
         Prospectus and any supplement thereto as the Underwriters may
         reasonably request.  The Company will pay the expenses of printing or
         other production of all documents relating to the offering.  Subject
         to the terms of paragraph (e) of this Section 5 and Sections 7 and 8
         hereof, it is agreed that the Underwriters will pay all of their own
         costs and expenses, including fees of their counsel, transfer taxes on
         resale of any of the Securities by them and any advertising expenses
         incurred in connection with the offer or sale.  It is further agreed
         that the Company will pay all expenses in connection with the
         qualification of the Securities for offering and sale under state
         securities laws, including the fees and disbursements of counsel for
         the Underwriters in connection with the Blue Sky survey.
<PAGE>   10
                                                                              10


                 (e)  The Company will arrange for the qualification of the
         Securities for sale under the laws of such jurisdictions as the
         Underwriters may designate, will maintain such qualifications in
         effect so long as required for the distribution of the Securities and
         will pay the fee of the National Association of Securities Dealers,
         Inc., in connection with its review of the offering.

                 (f)  The Company will not, for a period of 120 days following
         the Execution Time, without the prior written consent of Salomon
         Brothers Inc, offer, sell or contract to sell, or otherwise dispose
         of, any debt securities of the Company in a public offering (or in a
         private offering where holders of the debt securities are granted
         rights to have such debt securities registered under the Act, or to
         exchange such debt securities for other debt securities that are so
         registered).

                 (g)  The Company confirms as of the date hereof that it is in
         compliance with all provisions of Section 1 of Laws of Florida,
         Chapter 92-198,An Act Relating to Disclosure of Doing Business with
         Cuba, and the Company further agrees that if it commences engaging in
         business with the government of Cuba or with any person or affiliate
         located in Cuba after the date the Registration Statement becomes or
         has become effective with the Securities and Exchange Commission or
         with the Florida Department of Banking and Finance (the "Department"),
         whichever date is later, or if the information reported in the
         Prospectus, if any, concerning the Company's business with Cuba or
         with any person or affiliate located in Cuba changes in any material
         way, the Company will provide the Department notice of such business
         or change, as appropriate, in a form acceptable to the Department;
         provided, however, that the Company's obligation to provide such
         notice will terminate at the date on which the distribution of the
         Securities has terminated.

                 6.  Conditions to the Obligations of the Under-  writers.  The
obligations of the Underwriters to purchase the Securities shall be subject to
the accuracy of the representations and warranties on the part of the Company
contained herein as of the Execution Time and the Closing Date, to the accuracy
of the statements of the Company made in any certificates pursuant to the
provisions hereof, to
<PAGE>   11
                                                                              11

the performance by the Company of its obligations hereunder and to the
following additional conditions:

                 (a)  If the Registration Statement has not become effective
         prior to the Execution Time, unless the Underwriters agree in writing
         to a later time, the Registration Statement will become effective not
         later than (i) 6:00 PM New York City time, on the date of
         determination of the public offering price, if such determination
         occurred at or prior to 3:00 PM New York City time on such date or
         (ii) 12:00 Noon on the business day following the day on which the
         public offering price was determined, if such determination occurred
         after 3:00 PM New York City time on such date; if filing of the
         Prospectus, or any supplement thereto, is required pursuant to Rule
         424(b), the Prospectus, and any such supplement, will be filed in the
         manner and within the time period required by Rule 424(b); and no stop
         order suspending the effectiveness of the Registration Statement shall
         have been issued and no proceedings for that purpose shall have been
         instituted or threatened.

                 (b)  The Company shall have furnished to the Underwriters the
         opinion of Andrews & Kurth, L.L.P.,  counsel for the Company, dated
         the Closing Date, to the effect that:

                          (i) the Company has been duly incorporated and is
                 validly existing as a corporation in good standing under the
                 laws of the jurisdiction in which it is chartered or
                 organized, with full corporate power and authority to own its
                 properties and conduct its business as described in the
                 Prospectus;

                         (ii) the Company's authorized equity capitalization is
                 as set forth in the Prospectus and the Securities conform in
                 all material respects to the description thereof contained in
                 the Prospectus;

                        (iii) the Indenture has been duly authorized, executed
                 and delivered by the Company, has been duly qualified under
                 the Trust Indenture Act, and constitutes a legal, valid and
                 binding obligation of the Company enforceable against the
                 Company in accordance with its terms (subject, as to
                 enforcement of legal remedies, to applicable
<PAGE>   12
                                                                              12

                 bankruptcy, reorganization, insolvency, moratorium or other
                 laws affecting creditors' rights generally from time to time
                 in effect and, as to the remedies of specific performance and
                 injunctive and other forms of equitable relief, to equitable
                 defenses or principles and to the discretion of the court
                 before which any proceeding therefor may be brought); and the
                 Securities have been duly authorized by the Company and, when
                 executed and authenticated in accordance with the provisions
                 of the Indenture and delivered to and paid for by the
                 Underwriters pursuant to this Agreement, will constitute
                 legal, valid and binding obligations of the Company entitled
                 to the benefits of the Indenture (subject, as to enforcement
                 of legal remedies, to applicable bankruptcy, reorganization,
                 insolvency, moratorium or other laws affecting creditors'
                 rights generally from time to time in effect and, as to the
                 remedies of specific performance and injunctive and other
                 forms of equitable relief, to equitable defenses or principles
                 and to the discretion of the court before which any proceeding
                 therefor may be brought);

                         (iv) the statements in the Prospectus under the
                 headings "Business and Properties--Other Business Matters--
                 Regulation of Crude Oil and Natural Gas" and, to such
                 counsel's knowledge, "-- Environmental Regulation" fairly
                 summarize the matters therein described;

                          (v) the Registration Statement has become effective
                 under the Act; any required filing of the Prospectus, and any
                 supplements thereto, pursuant to Rule 424(b) has been made in
                 the manner and within the time period required by Rule 424(b);
                 to the knowledge of such counsel, no stop order suspending the
                 effectiveness of the Registration Statement has been issued,
                 no proceedings for that purpose have been instituted or
                 threatened and the Registration Statement and the Prospectus
                 (other than the financial statements and other financial and
                 statistical information contained or incorporated therein, and
                 financial data and other information included or incorporated
                 therein by reference that is extracted from a report of Ryder
                 Scott Company
<PAGE>   13
                                                                              13

                 pertaining to natural resource reserves, as to which such
                 counsel need express no opinion) comply as to form in all
                 material respects with the applicable requirements of the Act,
                 the Exchange Act and the Trust Indenture Act and the
                 respective rules and regulations promulgated thereunder;

                        (vi) this Agreement has been duly authorized, executed
                 and delivered by the Company;

                      (vii) to such counsel's knowledge, no consent, approval,
                 authorization or order of any court or governmental agency or
                 body is required for the consummation of the transactions
                 contemplated herein, except such as have been obtained under
                 the Act, the Exchange Act or the Trust Indenture Act and such
                 as may be required under the blue sky laws of any jurisdiction
                 in connection with the purchase and distribution of the
                 Securities by the Underwriters and such other approvals
                 (specified in such opinion) as have been obtained;

                    (viii) neither the issue and sale of the Securities, nor
                 the consummation of any other of the transactions herein
                 contemplated nor the fulfillment of the terms hereof will
                 result in a breach or violation of, or constitute a default
                 under any law or the Restated Certificate of Incorporation or
                 By-Laws of the Company or the terms of any of the agreements
                 listed in Annex B hereto or any judgment, order or decree
                 known to such counsel to be applicable to the Company or any
                 of its subsidiaries of any court, regulatory body,
                 administrative agency, governmental body or arbitrator having
                 jurisdiction over the Company or any of its subsidiaries; and

                        (ix) any holders of securities of the Company known to
                 such counsel to have rights to the registration of such
                 securities under the Registration Statement have waived such
                 rights.

                 In addition, such counsel shall state that they have
participated in conferences with officers and other representatives of the
Company, representatives of Price Waterhouse and the representatives of the
Underwriters at which the contents of the Registration Statement and the
Prospectus and related matters were discussed.  On the basis
<PAGE>   14
                                                                              14

of the foregoing (relying as to materiality to a large extent upon the opinions
of the officers and other representatives of the Company) such counsel shall
state that they have no reason to believe that, as of the Effective Time, the
Registration Statement or any further amendment thereto (other than the
financial statements and other financial and statistical information contained
or incorporated by reference therein, and the financial data and other
information included or incorporated by reference therein that is extracted
from a report of Ryder Scott Company pertaining to natural resource reserves,
as to which such counsel need make no statement) made by the Company prior to
the Closing Date contained an untrue statement of a material fact or omitted to
state a material fact required to be stated therein or necessary to make the
statements therein not misleading or that, as of its date, the Prospectus
(other than the financial statements and other financial and statistical
information contained or incorporated by reference therein, and the financial
data and other information included or incorporated by reference therein that
is extracted from a report of Ryder Scott Company pertaining to natural
resource reserves, as to which such counsel need make no statement) contained
an untrue statement of a material fact or omitted to state a material fact
necessary to make the statements therein, in light of the circumstances in
which they were made, not misleading or that, as of such Closing Date, either
the Registration Statement or the Prospectus or any further amendment or
supplement thereto (other than the financial statements and other financial and
statistical information contained or incorporated by reference therein, and the
financial data and other information included or incorporated by reference
therein that is extracted from a report of Ryder Scott Company pertaining to
natural resource reserves, as to which such counsel need make no statement)
made by the Company prior to such Closing Date contains an untrue statement of
a material fact or omits to state a material fact necessary to make the
statements therein, in light of the circumstances in which they were made, not
misleading; and such counsel does not know of any contracts or other documents
of a character required to be filed or incorporated by reference as an exhibit
to the Registration Statement or required to be described in the Registration 
Statement or the Prospectus which are not filed or incorporated by reference 
or described as required.

                 In rendering such opinion, such counsel may rely (A) as to
matters involving the application of laws of any
<PAGE>   15
                                                                              15

jurisdiction other than the State of Texas or the Delaware General Corporation
Law or the laws of the United States, to the extent they deem proper and
specified in such opinion, upon the opinion of other counsel of good standing
whom they believe to be reliable and who are satisfactory to counsel for the
Underwriters and (B) as to matters of fact (including, with respect to the
opinion given in subsection (viii) above, any computations required by
financial or numerical covenants or agreements of the Company), to the extent
they deem proper, on certificates of responsible officers of the Company and
public officials.  References to the Prospectus in this paragraph (b) include
any supplements thereto at the Closing Date.

                 (c)  David L. Hicks, Vice President - Law and General Counsel
         for the Company, shall have furnished to you his opinion, dated the
         Closing Date, to the effect that:

                                   (i) Each of Santa Fe Pacific Exploration 
                          Company and Santa Fe Energy Resources (Delaware), Ltd.
                          (the "Subsidiaries") has been duly incorporated and
                          is validly existing as a corporation in good standing
                          under the laws of its jurisdiction of incorporation;
                          and all of the issued shares of capital stock of each
                          Subsidiary have been duly and validly authorized and
                          issued, are fully paid and non-assessable, and, except
                          as disclosed in the Prospectus or in any document
                          incorporated therein by reference, are owned directly
                          or indirectly by the Company, free and clear of all
                          liens, encumbrances, equities or claims;

                                  (ii) The Company and each Subsidiary has been
                          duly qualified as a foreign corporation for the
                          transaction obusiness and is in good standing under
                          the laws of each jurisdiction (other  than its
                          jurisdiction of incorporation) in which it owns or
                          leases properties, or conducts any business, so as to
                          require such qualification, or is subject to no
                          material liability or disability by reason of the
                          failure to be so qualified in any such jurisdiction;

                                 (iii) To such counsel's knowledge after 
                          reasonable investigation and other than as described
                          in the Prospectus or in any document
<PAGE>   16
                                                                              16

                 incorporated therein by reference, there is no pending or
                 threatened action, suit or proceeding before any court or
                 governmental agency, authority or body or any arbitration
                 involving the Company or any of its subsidiaries of a
                 character required to be disclosed in the Registration
                 Statement, the material information of which is not disclosed
                 in the Prospectus or in any document incorporated therein by
                 reference, and there is no contract or other document to which
                 the Company or any of its subsidiaries is a party that is of a
                 character required to be filed or incorporated by reference as
                 an exhibit to the Registration Statement or required to be
                 described in the Registration Statement or the Prospectus
                 which is not so filed or incorporated or referenced or
                 described as required; and the statements in the Prospectus
                 under the headings "Business and Properties -- Other Business
                 Matters --Environmental Regulation" and "-- Legal Proceedings"
                 fairly summarize the matters therein described; and

                        (iv)  Neither the issue and sale of the Securities, nor
                 the consummation of any other of the transactions herein
                 contemplated nor the fulfillment of the terms hereof will
                 result in a breach or violation of, or constitute a default
                 under any indenture or other agreement or instrument to which
                 the Company or any of its subsidiaries is a party or bound.

                 (d)  The Underwriters shall have received from Cravath, Swaine
         & Moore, counsel for the Underwriters, such opinion or opinions, dated
         the Closing Date, with respect to the issuance and sale of the
         Securities, the Indenture, the Registration Statement, the Prospectus
         (together with any supplement thereto) and other related matters as
         the Underwriters may reasonably require, and the Company shall have
         furnished to such counsel such documents as they request for the
         purpose of enabling them to pass upon such matters.

                 (e)  The Company shall have furnished to the Underwriters a
         certificate of the Company, signed by the Chairman of the Board or the
         President and the principal financial or accounting officer of the
         Company, dated the Closing Date, to the effect that the signers of
         such certificate have carefully examined the
<PAGE>   17
                                                                              17

         Registration Statement, the Prospectus, any supplement to the
         Prospectus and this Agreement and that:

                          (i) the representations and warranties of the Company
                 in this Agreement are true and correct in all material
                 respects on and as of the Closing Date with the same effect as
                 if made on the Closing Date and the Company has complied in
                 all material respects with all the agreements and satisfied in
                 all material respects all the conditions on its part to be
                 performed or satisfied at or prior to the Closing Date;

                         (ii) no stop order suspending the effectiveness of the
                 Registration Statement has been issued and no proceedings for
                 that purpose have been instituted or, to the Company's
                 knowledge, threatened; and

                        (iii) since the date of the most recent financial
                 statements included in the Prospectus (exclusive of any
                 supplement thereto), there has been no material adverse change
                 in the earnings, financial condition, business affairs or
                 business prospects of the Company and its subsidiaries, taken
                 as a whole, whether or not arising from transactions in the
                 ordinary course of business, except as set forth in or
                 contemplated in the Prospectus (exclusive of any supplement
                 thereto).

                 (f)  At the Execution Time and at the Closing Date, Price
         Waterhouse shall have furnished to the Underwriters a letter or
         letters, dated respectively as of the Execution Time and as of the
         Closing Date, in form and substance satisfactory to the Underwriters,
         confirming that they are independent accountants within the meaning of
         the Act and the Exchange Act and the respective applicable published
         rules and regulations thereunder and that they have performed a review
         of the unaudited interim financial information of the Company for the
         three month period ended March 31, 1994, as at March 31, 1994, in
         accordance with Statement on Accounting Standards No. 71 and stating
         in effect that:

                          (i) in their opinion the audited financial statements
                 and financial statement schedules included or incorporated in
                 the Registration Statement and the Prospectus and reported on
                 by
<PAGE>   18
                                                                              18

                 them comply in form in all material respects with the
                 applicable accounting requirements of the Act and the Exchange
                 Act and the related published rules and regulations;
        
                        (ii) on the basis of a reading of the latest unaudited
                 financial statements made available by the Company and its
                 subsidiaries; carrying out certain specified procedures (but
                 not an examination in accordance with generally accepted
                 auditing standards) which would not necessarily reveal matters
                 of significance with respect to the comments set forth in such
                 letter; a reading of the minutes of the meetings of the
                 stockholders, directors and executive and audit committees of
                 the Company and the Subsidiaries; and inquiries of certain
                 officials of the Company who have responsibility for financial
                 and accounting matters of the Company and its subsidiaries as
                 to transactions and events subsequent to December 31, 1993,
                 nothing came to their attention which caused them to believe
                 that:

                                  (1) any unaudited consolidated financial
                          statements included or incorporated in the
                          Registration Statement and the Prospectus do not
                          comply in form in all material respects with
                          applicable accounting requirements and with the
                          published rules and regulations of the Commission
                          with respect to financial statements included or
                          incorporated by reference in quarterly reports on
                          Form 10-Q under the Exchange Act; and said unaudited
                          consolidated condensed financial statements are not
                          in conformity with generally accepted accounting
                          principles applied on a basis substantially
                          consistent with that of the audited consolidated
                          financial statements included or incorporated by
                          reference in the Registration Statement and the
                          Prospectus;

                                  (2) with respect to the periods subsequent to
                          March 31, 1994, there were any changes, at a
                          specified date not more than five business days prior
                          to the date of the letter, in the long-term debt of
                          the Company and its consolidated subsidiaries or
                          capital stock of the Company or decreases in the
<PAGE>   19
                                                                              19

                          shareholders' equity of the Company or the working
                          capital of the Company and its subsidiaries as
                          compared with the amounts shown on the March 31, 1994
                          consolidated balance sheet included in the
                          Registration Statement and the Prospectus, or for the
                          period from April 1, 1994 to such specified date
                          there were any decreases, as compared with the
                          corresponding period in the preceding year, in
                          revenues, income from operations, income before
                          income taxes or net income of the Company and its
                          subsidiaries, except in all instances for changes or
                          decreases set forth in such letter, in which case the
                          letter shall be accompanied by an explanation by the
                          Company as to the significance thereof unless said
                          explanation is not deemed necessary by the
                          Underwriters; or

                                  (3) the amounts included in any unaudited
                          "capsule" information included or incorporated by
                          reference in the Registration Statement and the
                          Prospectus do not agree with the amounts set forth in
                          the unaudited financial statements for the same
                          periods or were not determined on a basis
                          substantially consistent with that of the
                          corresponding amounts in the audited financial
                          statements included or incorporated by reference in
                          the Registration Statement and the Prospectus; and

                      (iii) they have performed certain other specified
                 procedures as a result of which they determined that certain
                 information of an accounting, financial or statistical nature
                 (which is limited to accounting, financial or statistical
                 information derived from the general accounting records of the
                 Company and its subsidiaries) set forth in the Registration
                 Statement and the Prospectus,  including the information set
                 forth under the captions "Prospectus Summary", "Investment
                 Considerations", "Ratio of Earnings to Fixed Changes",
                 "Capitalization", "Selected Financial and Operating Data",
                 "Management's Discussion and Analysis of Financial Condition
                 and Results of Operations" and "Business and Properties" in
                 the
<PAGE>   20
                                                                              20

                 Prospectus, the information included or incorporated in Items
                 1, 2, 6, 7 and 11 of the Company's Annual Report on Form 10-K,
                 incorporated by reference in the Registration Statement and
                 the Prospectus, and the information appearing in the Current
                 Report on Form 8-K dated February 8, 1994 and incorporated by
                 reference in the Registration Statement and the Prospectus,
                 agrees with the accounting records of the Company and its
                 subsidiaries, excluding any questions of legal interpretation.

                 References to the Prospectus in this paragraph (f) include any
                 supplement thereto at the date of the letter.

                 (g)  Subsequent to the Execution Time or, if earlier, the
         dates as of which information is given in the Registration Statement
         (exclusive of any post-effective amendment thereof) and the Prospectus
         (exclusive of any supplement thereto), there shall not have been (i)
         any change or decrease specified in the letter or letters referred to
         in paragraph (f) of this Section 6 or (ii) any change, or any
         development involving a prospective change, in or affecting the
         earnings, business affairs or business prospects of the Company and
         its subsidiaries the effect of which, in any case referred to in
         clause (i) or (ii) above, is, in the judgment of the Underwriters, so
         material and adverse as to make it impractical or inadvisable to
         proceed with the offering or delivery of the Securities as
         contemplated by the Registration Statement (exclusive of any
         post-effective amendment thereof) and the Prospectus (exclusive of any
         supplement thereto).

                 (h)  Subsequent to the Execution Time, there shall not have
         been any decrease in the rating of any of the Company's debt
         securities by any "nationally recognized statistical rating
         organization" (as defined for purposes of Rule 436(g) under the Act)
         or any notice given of any intended or potential decrease in any such
         rating or of a possible change in any such rating that does not
         indicate the direction of the possible change.

                 (i)  On the Closing Date, the Company shall have furnished to
         the Underwriters a certificate certifying that the Company has
         provided (BANK) with written instructions directing (BANK) to transfer
         by wire,
<PAGE>   21
                                                                              21

         immediately upon receipt of the funds described in Section 3 of this
         agreement, $71.1 million from the Company's account (account
         #___________) to the appropriate accounts of the Company's creditors
         with respect to the Senior Notes, which transfers shall constitute the
         payment of $65.0 million in principal amount of the Company's Series C
         and D Senior Notes and the payment of $6.1 million in prepayment
         penalties.

                 (j)  Prior to the Closing Date, the Company shall have
         furnished to the Underwriters such further information, certificates
         and documents as the Underwriters may reasonably request not less than
         24 hours prior to the Closing Date.

                 If any of the conditions specified in this Section 6 shall not
have been fulfilled in all material respects when and as provided in this
Agreement, or if any of the opinions and certificates mentioned above or
elsewhere in this Agreement shall not be in all material respects reasonably
satisfactory in form and substance to the Underwriters and counsel for the
Underwriters, this Agreement and all obligations of the Underwriters hereunder
may be canceled at, or at any time prior to, the Closing Date by the
Underwriters.  Notice of such cancellation shall be given to the Company in
writing or by telephone or telegraph confirmed in writing.

                 The documents required to be delivered by this Section 6 shall
be delivered at the office of Cravath, Swaine & Moore, counsel for the
Underwriters, at Worldwide Plaza, 825 Eighth Avenue, New York, New York, on the
Closing Date.

                 7.  Reimbursement of Underwriters' Expenses.  If the sale of
the Securities provided for herein is not consummated because any condition to
the obligations of the Underwriters set forth in Section 6 hereof is not
satisfied, because of any termination pursuant to Section 10 hereof or because
of any refusal, inability or failure on the part of the Company to perform any
agreement herein or comply with any provision hereof other than by reason of a
default by any of the Underwriters, the Company will reimburse the Underwriters
severally upon demand for all out-of-pocket expenses (including reasonable fees
and disbursements of counsel) that shall have been incurred by them in
connection with the proposed purchase and sale of the Securities.
<PAGE>   22
                                                                              22

                 8.  Indemnification and Contribution.  (a)  The Company agrees
to indemnify and hold harmless each Underwriter, the directors, officers,
employees and agents of each Underwriter and each person who controls any
Underwriter within the meaning of either the Act or the Exchange Act against
any and all losses, claims, damages or liabilities, joint or several, to which
they or any of them may become subject under the Act, the Exchange Act or other
Federal or state statutory law or regulation, at common law or otherwise,
insofar as such losses, claims, damages or liabilities (or actions in respect
thereof) arise out of or are based upon any untrue statement or alleged untrue
statement of a material fact contained in the registration statement for the
registration of the Securities as originally filed or in any amendment thereof,
or in any Preliminary Prospectus or the Prospectus, or in any amendment thereof
or supplement thereto, or arise out of or are based upon the omission or
alleged omission to state therein a material fact required to be stated therein
or necessary to make the statements therein not misleading, and agrees to
reimburse each such indemnified party, as incurred, for any legal or other
expenses reasonably incurred by them in connection with investigating or
defending any such loss, claim, damage, liability or action; provided, however,
that the Company will not be liable in any such case to the extent that any
such loss, claim, damage or liability arises out of or is based upon any such
untrue statement or alleged untrue statement or omission or alleged omission
made therein in reliance upon and in conformity with written information
furnished to the Company by or on behalf of any Underwriter specifically for
inclusion therein; and provided further with respect to any untrue statement or
omission of a material fact made in any Preliminary Prospectus, the indemnity
agreement contained in this Section 8(a) shall not inure to the benefit of any
Underwriter (or any of the directors, officers, employees and agents of such
Underwriter or any controlling person of such Underwriter) from whom the person
asserting any such loss, claim, damage or liability purchased the Securities
concerned, to the extent that any such loss, claim, damage or liability of such
Underwriter results from the fact that there was not sent or given to such
person, at or prior to the written confirmation of the sale of such Securities
to such person, a copy of the Prospectus (or such Prospectus as supplemented)
if the Company had previously furnished copies thereof to the Underwriters, and
in any case where such delivery is required by the Act and the untrue statement
or omission of a material fact contained in such Preliminary
<PAGE>   23
                                                                              23

Prospectus was corrected in such Prospectus (or such Prospectus as
supplemented).  This indemnity agreement will be in addition to any liability
which the Company may otherwise have.

                 (b)  Each Underwriter severally agrees to indemnify and hold
harmless the Company, each of its directors, each of its officers who signs the
Registration Statement, and each person who controls the Company within the
meaning of either the Act or the Exchange Act, to the same extent as the
foregoing indemnity from the Company to each Underwriter, but only with
reference to written information relating to such Underwriter furnished to the
Company by or on behalf of such Underwriter specifically for inclusion in the
documents referred to in the foregoing indemnity.  This indemnity agreement
will be in addition to any liability which any Underwriter may otherwise have.
The Company acknowledges that the statements set forth in the last paragraph of
the cover page and under the heading "Underwriting" in any Preliminary
Prospectus and the Prospectus constitute the only information furnished in
writing by or on behalf of the several Underwriters for inclusion in any
Preliminary Prospectus or the Prospectus, and the Underwriters confirm that
such statements are correct.

                 (c)  Promptly after receipt by an indemnified party under this
Section 8 of notice of the commencement of any action, such indemnified party
will, if a claim in respect thereof is to be made against the indemnifying
party under this Section 8, notify the indemnifying party in writing of the
commencement thereof; but the failure so to notify the indemnifying party (i)
will not relieve it from liability under paragraph (a) or (b) above unless and
to the extent it did not otherwise learn of such action and such failure
results in the forfeiture by or material prejudice to the indemnifying party of
substantial rights and defenses and (ii) will not, in any event, relieve the
indemnifying party from any obligations to any indemnified party other than the
indemnification obligation provided in paragraph (a) or (b) above.  The
indemnifying party shall be entitled to appoint counsel of the indemnifying
party's choice at the indemnifying party's expense to represent the indemnified
party in any action for which indemnification is sought (in which case the
indemnifying party shall not thereafter be responsible for the fees and
expenses of any separate counsel retained by the indemnified party or parties
except as set forth below); provided, however, that
<PAGE>   24
                                                                              24

such counsel shall be satisfactory to the indemnified party.  Notwithstanding
the indemnifying party's election to appoint counsel to represent the
indemnified party in an action, the indemnified party shall have the right to
employ separate counsel (including local counsel), and the indemnifying party
shall bear the reasonable fees, costs and expenses of one such separate counsel
if (i) the use of counsel chosen by the indemnifying party to represent the
indemnified party would present such counsel with a conflict of interest, (ii)
the actual or potential defendants in, or targets of, any such action include
both the indemnified party and the indemnifying party and the indemnified party
shall have reasonably concluded, based upon the advice of counsel, that there
may be legal defenses available to it and/or other indemnified parties which
are different from or additional to those available to the indemnifying party,
(iii) the indemnifying party shall not have employed counsel satisfactory to
the indemnified party to represent the indemnified party within a reasonable
time after notice of the institution of such action or (iv) the indemnifying
party shall authorize the indemnified party to employ separate counsel at the
expense of the indemnifying party.  An indemnifying party will not, without the
prior written consent of the indemnified parties, settle or compromise or
consent to the entry of any judgment with respect to any pending or threatened
claim, action, suit or proceeding in respect of which indemnification or
contribution may be sought hereunder (whether or not the indemnified parties
are actual or potential parties to such claim or action) unless such
settlement, compromise or consent includes an unconditional release of each
indemnified party from all liability arising out of such claim, action, suit or
proceeding.  No indemnified party, without the prior written consent of the
indemnifying party, will settle or compromise or consent to the entry of any
judgment with respect to any pending or threatened claim, action, suit or
proceeding in respect of which indemnification or contribution may be sought
hereunder (whether or not the indemnifying party is an actual or potential
party to such claim or action) unless the indemnifying party fails to perform
its obligations hereunder.

                 (d)  In the event that the indemnity provided in paragraph (a)
or (b) of this Section 8 is unavailable to or insufficient to hold harmless an
indemnified party for any reason, the Company and the Underwriters agree to
contribute to the aggregate losses, claims, damages and liabilities (including
legal or other expenses reasonably incurred in
<PAGE>   25
                                                                              25

connection with investigating or defending same, subject to the provisions
regarding the right to choose counsel contained in the second and third
sentences of paragraph (c) above) (collectively "Losses") to which the Company
and one or more of the Underwriters may be subject in such proportion as is
appropriate to reflect the relative benefits received by the Company and by the
Underwriters from the offering of the Securities; provided, however, that in no
case shall any Underwriter (except as may be provided in any agreement among
underwriters relating to the offering of the Securities) be responsible for any
amount in excess of the underwriting discount or commission applicable to the
Securities purchased by such Underwriter hereunder.  If the allocation provided
by the immediately preceding sentence is unavailable for any reason, the
Company and the Underwriters shall contribute in such proportion as is
appropriate to reflect not only such relative benefits but also the relative
fault of the Company and of the Underwriters in connection with the statements
or omissions which resulted in such Losses as well as any other relevant
equitable considerations.  Benefits received by the Company shall be deemed to
be equal to the total net proceeds from the offering (before deducting
expenses), and benefits received by the Underwriters shall be deemed to be
equal to the total underwriting discounts and commissions, in each case as set
forth on the cover page of the Prospectus.  Relative fault shall be determined
by reference to whether any alleged untrue statement or omission relates to
information provided by the Company or the Underwriters.  The Company and the
Underwriters agree that it would not be just and equitable if contribution were
determined by pro rata allocation or any other method of allocation which does
not take account of the equitable considerations referred to above.
Notwithstanding the provisions of this paragraph (d), no person guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the Act)
shall be entitled to contribution from any person who was not guilty of such
fraudulent misrepresentation.  For purposes of this Section 8, each person who
controls an Underwriter within the meaning of either the Act or the Exchange
Act and each director, officer, employee and agent of an Underwriter shall have
the same rights to contribution as such Underwriter, and each person who
controls the Company within the meaning of either the Act or the Exchange Act,
each officer of the Company who shall have signed the Registration Statement
and each director of the Company shall have the same rights to contribution as
the Company, subject in each case
<PAGE>   26
                                                                              26

to the applicable terms and conditions of this paragraph (d).

                 9.  Default by an Underwriter.  If any one or more
Underwriters shall fail to purchase and pay for any of the Securities agreed to
be purchased by such Underwriter or Underwriters hereunder and such failure to
purchase shall constitute a default in the performance of its or their
obligations under this Agreement, the remaining Underwriters shall be obligated
severally to take up and pay for (in the respective proportions which the
principal amount of Securities set forth opposite their names in Schedule I
hereto bears to the aggregate principal amount of Securities set forth opposite
the names of all the remaining Underwriters) the Securities which the
defaulting Underwriter or Underwriters agreed but failed to purchase; provided,
however, that in the event that the aggregate principal amount of Securities
which the defaulting Underwriter or Underwriters agreed but failed to purchase
shall exceed 10% of the aggregate principal amount of Securities set forth in
Schedule I hereto, the remaining Underwriters shall have the right to purchase
all, but shall not be under any obligation to purchase any, of the Securities,
and if such nondefaulting Underwriters do not purchase all the Securities, this
Agreement will terminate without liability to any nondefaulting Underwriter or
the Company.  In the event of a default by any Underwriter as set forth in this
Section 9, the Closing Date shall be postponed for such period, not exceeding
seven days, as the Underwriters shall determine in order that the required
changes in the Registration Statement and the Prospectus or in any other
documents or arrangements may be effected.  Nothing contained in this Agreement
shall relieve any defaulting Underwriter of its liability, if any, to the
Company and any nondefaulting Underwriter for damages occasioned by its default
hereunder.

                 10.  Termination.  This Agreement shall be subject to
termination in the absolute discretion of the Underwriters, by notice given to
the Company prior to delivery of and payment for the Securities, if after the
Execution Time and prior to such time (i) trading in the Company's Common Stock
shall have been suspended by the Commission or the New York Stock Exchange or
trading in securities generally on the New York Stock Exchange shall have been
suspended or limited or minimum prices shall have been established on such
Exchange, (ii) a banking moratorium shall have been declared either by Federal
or New York State authorities or (iii) there shall have occurred any outbreak
or escalation
<PAGE>   27
                                                                              27

of hostilities, declaration by the United States of a national emergency or war
or other calamity or crisis the effect of which on financial markets is such as
to make it, in the judgment of the Underwriters, impracticable or inadvisable
to proceed with the offering or delivery of the Securities as contemplated by
the Prospectus (exclusive of any supplement thereto).

                 11.  Representations and Indemnities to Survive. The
respective agreements, representations, warranties, indemnities and other
statements of the Company or its officers and of the Underwriters set forth in
or made pursuant to this Agreement will remain in full force and effect,
regardless of any investigation made by or on behalf of any Underwriter or the
Company or any of the officers, directors or controlling persons referred to in
Section 8 hereof, and will survive delivery of and payment for the Securities.
The provisions of Sections 7 and 8 hereof shall survive the termination or
cancellation of this Agreement.

                 12.  Notices.  All communications hereunder will be in writing
and effective only on receipt, and, if sent to the Underwriters, will be
mailed, delivered or telegraphed and confirmed to them, care of Salomon
Brothers Inc, at Seven World Trade Center, New York, New York, 10048; or, if
sent to the Company, will be mailed, delivered or telegraphed and confirmed to
it at 1616 South Voss Road, Suite 1000, Houston, Texas 77057, Attention:
General Counsel.

                 13.  Actions of Underwriters.  Any action required or
permitted to be taken by the Underwriters hereunder may be taken by Salomon
Brothers Inc, and the Company shall be entitled to act and rely upon any action
so taken by Salomon Brothers Inc, as having been taken by the Underwriters.

                 14.  Successors.  This Agreement will inure to the benefit of
and be binding upon the parties hereto and their respective successors and the
officers and directors and controlling persons referred to in Section 8 hereof,
and no other person will have any right or obligation hereunder.

                 15.  Applicable Law.  This Agreement will be governed by and
construed in accordance with the laws of the State of New York.

                 If the foregoing is in accordance with your understanding of
our agreement, please sign and return to us the
<PAGE>   28
                                                                              28

enclosed duplicate hereof, whereupon this letter and your  acceptance shall
represent a binding agreement among the Company and the several Underwriters.


                                           Very truly yours,

                                           Santa Fe Energy Resources, Inc.

                                           By: .....................
                                                     (Title)

The foregoing Agreement is hereby
confirmed and accepted as of the
date first above written.

Salomon Brothers Inc
Dillon Read & Co. Inc.
Lazard Freres & Co.
Chemical Securities Inc.


By:  Salomon Brothers Inc

By:
     ............................
            Vice President
<PAGE>   29
                                                                              29





                                   SCHEDULE I


<TABLE>
<CAPTION>
                                                                                                        Principal Amount
                                                                                                        of Securities to
                                                    Underwriters                                          be Purchased  
                                                    ------------                                        ----------------
                          <S>                                                                     <C>
                          Salomon Brothers Inc  . . . . . . . . . . . . . . . . . . . . .         $

                          Dillon, Read & Co. Inc. . . . . . . . . . . . . . . . . . . . .

                          Lazard Freres & Co  . . . . . . . . . . . . . . . . . . . . . .

                          Chemical Securities Inc.  . . . . . . . . . . . . . . . . . . .                        
                                                                                                  ---------------

                          Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . .         $100,000,000
                                                                                                                 
                                                                                                  ===============
</TABLE>


<PAGE>   30
                                                                              30

                                    ANNEX A




  
<TABLE>
                          <S>                               <C>
                          Alabama                           Nevada
                          Alaska                            New Mexico
                          Arizona                           New York
                          Arkansas                          North Dakota
                          California                        Ohio
                          Colorado                          Oklahoma
                          Idaho                             Oregon
                          Kansas                            Pennsylvania
                          Louisiana                         South Dakota
                          Michigan                          Tennessee
                          Mississippi                       Texas
                          Montana                           Utah
                          Nebraska                          Washington
                                                            West Virginia
</TABLE>
<PAGE>   31
                                                                              31


                                    ANNEX B


1.    Note Agreement dated as of March 31, 1990, by and among Santa Fe Energy
      Resources, Inc. and various institutional investors relating to the
      issuance of $365,000,000 of Senior Notes maturing 1993-2005, as amended

2.    Amendment dated as of November 1, 1992, to Note Agreement dated as of
      March 31, 1990, by and among Santa Fe Resources, Inc.  and various
      institutional investors relating to the issuance of $365,000,000 of
      Senior Notes maturing 1993 to 2005, as amended

3.    Amendment dated as of December 31, 1993, to Note Agreement dated as of
      March 30, 1990, by and among Santa Fe Energy Resources, Inc. and various
      institutional investors, relating to the issuance of $365,000,000 of
      Senior Notes maturing 1993 to 2005, as amended

4.    Amended and Restated Revolving and Term Credit Agreement, dated as of
      March 16, 1994, among Santa Fe  Energy Resources Inc., the banks
      signatory thereto and Texas Commerce Bank National Association as
      Co-Agent and Administrative Agent and NationsBank of Texas, N.A. as
      Co-Agent

5.    Letter of Credit Agreement dated as of March 16, 1994, among Santa Fe
      Energy Resources, Inc., the banks signatory thereto and Texas Commerce
      Bank National Association as Co-Agent and Administrative Agent and
      NationsBank of Texas, N.A. as Co-Agent

6.    Credit Agreement dated as of June 30, 1987 among Santa Fe Energy
      Operating Partners, L.P. Morgan Guaranty Trust Company as agent, and the
      Lenders thereunder

7.    Agreement for the Allocation of the Consolidated Federal Income Tax
      Liability Among the Members of the Santa Fe Pacific Corporation ("SFP")
      Affiliated Group, as amended, dated December 23, 1983

8.    Spin Off Tax Indemnification Agreement between SFER, Inc. and SFP

9.    Agreement Concerning Taxes among Santa Fe Energy Resources, Inc., certain
      subsidiaries, and SFP
<PAGE>   32
                                                                              32



10.   Agreements for the Allocation of the Combined State Income Tax Liability
      Among the Members of the Santa Fe Pacific Corporation Affiliated Group
      for the States of Arizona, California, Illinois, Kansas, New Mexico,
      Oregon and Utah

11.   Agreement of Limited Partnership, South Belridge Limited Partnership,
      dated as of October 31, 1990, by and between Santa Fe Energy Resources,
      Inc., and the Prudential Insurance Company of America

12.   Form of Net Profits Conveyance from Santa Fe Energy Resources, Inc., to
      Texas Commerce Bank, Trustee of the Santa Fe Energy Royalty Trust

13.   Form of Wasson Conveyance from Santa Fe Energy Resources, Inc. to Texas
      Commerce Bank, Trustee of the Santa Fe Energy Royalty Trust

14.   Agreement for Purchase and Sale, dated as of October 26, 1993, by and
      among Santa Fe Energy Resources, Inc., Santa Fe Oil Company, Santa Fe
      Energy Operating Partners, L.P. and Vintage Petroleum, Inc.

15.   Agreement of Sale and Purchase dated December 2, 1993, by and among Santa
      Fe Energy Resources, Inc., Santa Fe Energy Operating Partners, L.P. and
      Bridge Oil and Gas, Inc.

16.   Agreement of Merger, dated as of July 28, 1993, among Santa Fe Energy
      Resources, Inc., Adobe Gas Pipeline Company and Hadson Corporation

17.   Amendment No. 1 dated as of July 28, 1993, to Agreement of Merger, dated
      as of July 28, 1993, among Santa Fe Energy Resources, Inc., Adobe Gas
      Pipeline Company and Hadson Corporation

18.   Gas Marketing Agreement, dated as of December 14, 1993, between Santa Fe
      Energy Resources, Inc. and Hadson Corporation

19.   Stock Ownership and Registration Rights Agreement dated December 10,
      1991, by, between and among SFER, Inc., Minorco, and Minorco (U.S.A.)
      Inc.

<PAGE>   1





                        Santa Fe Energy Resources, Inc.

                          10,700,000 Shares of DECSsm
                    (Dividend Enhanced Convertible Stocksm)

                  $_____ Series A Convertible Preferred Stock
                               ($0.01 par value)

                             Underwriting Agreement

                                                              New York, New York
                                                                    May __, 1994

Salomon Brothers Inc
Lazard Freres & Co.
PaineWebber Incorporated
c/o Salomon Brothers Inc
Seven World Trade Center
New York, New York 10048


Dear Sirs:

                 Santa Fe Energy Resources, Inc., a Delaware corporation (the
"Company"), proposes to sell to the underwriters named in Schedule I hereto
(the "Underwriters"), 10,700,000 shares of Dividend Enhanced Convertible Stock,
$________ Series A Convertible Preferred Stock, $0.01 par value ("DECS") of the
Company (said shares to be issued and sold by the Company being hereinafter
called the "Underwritten Securities").  The Company also proposes to grant to
the Underwriters an option to purchase up to 1,605,000 additional shares of
DECS (the "Option Securities"; the Option Securities, together with the
Underwritten Securities, being hereinafter called the "Securities").

                 1.       Representations and Warranties.  The Company
represents and warrants to, and agrees with, each Under-




- ----------------------

         */ Plus an option to purchase from the Company up to 1,605,000
additional shares to cover over-allotments.
<PAGE>   2
                                                                               2

writer as set forth below in this Section 1.  Certain terms used in this
Section 1 are defined in paragraph (c) hereof.

                 (a)      The Company meets the requirements for use of Form
         S-3 under the Securities Act of 1933 (the "Act") and has filed with
         the Securities and Exchange Commission (the "Commission") a
         registration statement (file number 33-52849) on such Form, including
         a related preliminary prospectus, for the registration under the Act
         of the offering and sale of the Securities and the underlying common
         stock.  The Company may have filed one or more amendments thereto,
         including the related preliminary prospectus, each of which has
         previously been furnished to you.  The Company will next file with the
         Commission either:  (i) prior to effectiveness of such registration
         statement, a further amendment to such registration statement,
         including the form of final prospectus or  (ii) a final prospectus in
         accordance with Rules 430A and 424(b)(1) or (4).  In the case of
         clause (ii), the Company has included in such registration statement,
         as amended at the Effective Date, all information (other than Rule
         430A Information) required by the Act and the rules thereunder to be
         included in the Prospectus with respect to the Securities and the
         offering thereof.  As filed, such amendment and form of final
         prospectus, or such final prospectus, shall contain all Rule 430A
         Information, together with all other such required information, with
         respect to the Securities and the offering thereof and, except to the
         extent the Underwriters shall agree in writing to a modification,
         shall be in all substantive respects in the form furnished to you
         prior to the Execution Time or, to the extent not completed at the
         Execution Time, shall contain only such specific additional
         information and other changes (beyond that contained in the latest
         Preliminary Prospectus) as the Company has advised you, prior to the
         Execution Time, will be included or made therein.

                 (b)      On the Effective Date, the Registration Statement did
         or will, and when the Prospectus is first filed (if required) in
         accordance with Rule 424(b) and on the Closing Date, the Prospectus
         (and any supplements thereto) will, comply in all material respects
         with the applicable requirements of the Act and the Securities
         Exchange Act of 1934 (the "Exchange Act") and the respective rules
         thereunder; on the Effective Date, the Registration Statement did not
         or will not
<PAGE>   3
                                                                               3


         contain any untrue statement of a material fact or omit to state any
         material fact required to be stated therein or necessary in order to
         make the statements therein not misleading; and, on the Effective
         Date, the Prospectus, if not filed pursuant to Rule 424(b), did not or
         will not, and on the date of any filing pursuant to Rule 424(b) and on
         the Closing Date, the Prospectus (together with any supplement
         thereto) will not, include any untrue statement of a material fact or
         omit to state a material fact necessary in order to make the
         statements therein, in the light of the circumstances under which they
         were made, not misleading; provided, however, that the Company makes
         no representations or warranties as to the information contained in or
         omitted from the Registration Statement or the Prospectus (or any
         supplement thereto) in reliance upon and in conformity with
         information furnished in writing to the Company by or on behalf of any
         Underwriter specifically for inclusion in the Registration Statement
         or the Prospectus (or any supplement thereto).

                 (c)      The terms which follow, when used in this Agreement,
         shall have the meanings indicated.  The term "the Effective Date"
         shall mean each date that the Registration Statement and any
         post-effective amendment or amendments thereto became or become
         effective and each date after the date hereof on which a document
         incorporated by reference in the Registration Statement is filed.
         "Execution Time" shall mean the date and time that this Agreement is
         executed and delivered by the parties hereto.  "Preliminary
         Prospectus" shall mean any preliminary prospectus referred to in
         paragraph (a) above and any preliminary prospectus included in the
         Registration Statement at the Effective Date that omits Rule 430A
         Information.  "Prospectus" shall mean the prospectus relating to the
         Securities that is first filed pursuant to Rule 424(b) after the
         Execution Time or, if no filing pursuant to Rule 424(b) is required,
         shall mean the form of final prospectus relating to the Securities
         included in the Registration Statement at the Effective Date.
         "Registration Statement" shall mean the registration statement
         referred to in paragraph (a) above, including incorporated documents,
         exhibits and financial statements, as amended at the Execution Time
         (or, if not effective at the Execution Time, in the form in which it
         shall become effective) and, in the event any post-effective amendment
         thereto becomes effective
<PAGE>   4
                                                                               4


         prior to the Closing Date (as hereinafter defined), shall also mean
         such registration statement as so amended.  Such term shall include
         any Rule 430A Information deemed to be included therein at the
         Effective Date as provided by Rule 430A.  "Rule 424" and "Rule 430A"
         refer to such rules or regulation under the Act.  "Rule 430A
         Information" means information with respect to the Securities and the
         offering thereof permitted to be omitted from the Registration
         Statement when it becomes effective pursuant to Rule 430A.  Any
         reference herein to the Registration Statement, a Preliminary
         Prospectus or the Prospectus shall be deemed to refer to and include
         the documents or portions thereof incorporated by reference therein
         pursuant to Item 12 of Form S-3 which were filed under the Exchange
         Act on or before the Effective Date of the Registration Statement or
         the issue date of such Preliminary Prospectus or the Prospectus, as
         the case may be; and any reference herein to the terms "amend",
         "amendment" or "supplement" with respect to the Registration
         Statement, any Preliminary Prospectus or the Prospectus shall be
         deemed to refer to and include the filing of any document under the
         Exchange Act after the Effective Date of the Registration Statement,
         or the issue date of any Preliminary Prospectus or the Prospectus, as
         the case may be, deemed to be incorporated therein by reference.

                 (d)      Other than as described in the Prospectus, there are
         no contracts, agreements or understandings between the Company and any
         person except Minorco (U.S.A.) Inc. granting any person except Minorco
         (U.S.A.) Inc. the right to require the Company to file a registration
         statement under the Act with respect to any securities of the Company
         owned or to be owned by such person or to require the Company to
         include such securities in the securities registered pursuant to the
         Registration Statement or in any securities being registered pursuant
         to any other registration statement filed by the Company under the
         Act.

                 (e)      The Company has obtained a legally binding waiver
         from Minorco (U.S.A.) Inc. waiving any rights it may have under the
         Stock Ownership and Registration Rights Agreement dated December 10,
         1991 and effective as of May 19, 1992 among Minorco, Minorco (U.S.A.)
         Inc. and the Company, to compel the Company to register under the Act
         the Common Stock of the Company held by Minorco (U.S.A.) Inc. which is
         subject to that
<PAGE>   5
                                                                               5


         agreement.  Such waiver will expire 120 days after the date of the
         Prospectus.  A true, correct and complete copy of the letter has been
         provided to you.

                 (f)      Copies of agreements, substantially in the form of
         the letter attached hereto as Exhibit A and executed by each of HC
         Associates and Minorco (U.S.A.) Inc., have been delivered to you.

                 (g)      This Agreement has been duly authorized, executed and
         delivered by the Company.

                 (h)      The outstanding shares of Common Stock and the shares
         of Common Stock registered in the Registration Statement have been
         duly authorized; the outstanding shares of Common Stock are validly
         issued, fully paid and nonassessable and conform in all material
         respects to the description thereof contained in the Form 8-A
         Registration Statement filed under the Exchange Act (File No. 1-7667)
         and incorporated by reference in the Prospectus; and the Company has
         authorized capital stock consisting of 200,000,000 shares of Common
         Stock, 5,000,000 shares of Convertible Preferred Stock, Series 7%, and
         45,000,000 shares of undesignated Preferred Stock, and the Company has
         outstanding as of March 31, 1994, (       ) shares of Common Stock and
         5,000,000 shares of Convertible Preferred Stock, Series 7% and has not
         issued any shares pursuant to the exercise of options, warrants or
         convertible securities since March 31, 1994.

                 (i)      Except as described or referred to in the Prospectus
         or incorporated therein by reference, there are no outstanding (A)
         securities or obligations of the Company convertible into or
         exchangeable for any capital stock of the Company, (B) warrants,
         rights or options to subscribe for or purchase from the Company any
         such capital stock or any such convertible or exchangeable securities
         or obligations or (C) obligations of the Company to issue such shares,
         any such convertible or exchangeable securities or obligations, or any
         such warrants, rights or obligations.

                 (j)      The Company is qualified and in good standing to do
         business as a foreign corporation under the laws of the States listed
         in Annex A hereto and is not required to be qualified to do business
         in any other jurisdiction, excluding such jurisdictions where
<PAGE>   6
                                                                               6


         failure to so qualify would not have a material adverse effect on the
         earnings, financial condition, business affairs or business prospects
         of the Company and its subsidiaries, taken as a whole.

                 (k)      The execution and delivery of this Agreement does
         not, and the performance of this Agreement and the consummation of the
         transactions herein contemplated will not, result in a breach or
         violation of any of the terms and provisions of, or constitute a
         default (or result in a required repurchase of securities or repayment
         of debt) under (A) any statute, rule, regulation or order of any
         United States governmental agency or body or any United States court
         having jurisdiction over the Company or any of its properties, (B) any
         agreement or instrument that is material to the business of the
         Company and to which the Company is a party or by which the Company is
         bound or to which any of the properties of the Company is subject or
         (C) the Restated Certificate of Incorporation or By-Laws of the
         Company, except in the case of clauses (A) or (B) where such breach,
         violation or default would not have a material adverse effect on the
         earnings, financial condition, business affairs or business prospects
         of the Company and its subsidiaries, taken as a whole.

                 (l)      No consent, approval, authorization, or order,
         registration or qualification of or with any court or governmental
         agency or body of the United States is required to be obtained by the
         Company for the consummation of the transactions contemplated by this
         Agreement, except such as may have been obtained under the Act or the
         Exchange Act, and such of the foregoing as may be required under the
         securities or blue sky laws of any jurisdiction in connection with the
         purchase and distribution of the Securities by the Underwriters.

                 (m)      Except as disclosed in the Prospectus or in any
         document incorporated therein by reference, there is no action, suit
         or proceeding before or by any court or governmental agency or body,
         domestic or foreign, pending or, to the knowledge of the Company,
         threatened against or affecting the Company, which is required to be
         disclosed in the Registration Statement, or which, if adversely
         determined, would, individually or in the aggregate, have a material
         adverse effect on the earnings, financial condition, business affairs
         or
<PAGE>   7
                                                                               7


         business prospects of the Company and its subsidiaries, taken as a
         whole.

                 (n)      The Company is in compliance with all applicable
         federal, state and local environmental laws and regulations and all
         environmental laws and regulations of each foreign jurisdiction in
         which it conducts business, including, without limitation, those
         applicable to emissions to the environment, waste management and waste
         disposal (collectively the "Environmental Laws"), except as disclosed
         in the Prospectus or any document incorporated therein by reference or
         where such noncompliance would not have a material adverse effect on
         the earnings, financial condition, business affairs or business
         prospects of the Company.  To the Company's knowledge under current
         law and interpretation, there are no circumstances that would prevent
         or materially increase the cost of such compliance in the future.

                 (o)      Except as disclosed in the Prospectus or in any
         document incorporated therein by reference, there is no claim under
         any Environmental Law, including common law, pending or, to the
         Company's knowledge, threatened against or affecting the Company,
         except for such claims which, if determined adversely to the Company,
         would not have a material adverse effect on the earnings, financial
         condition, business affairs or business prospects of the Company and
         its subsidiaries, taken as a whole, ("Environmental Claim"), and, to
         the Company's knowledge, under applicable law there are no past or
         present actions, activities, circumstances, events or incidents,
         including, without limitation, releases of any material into the
         environment that could reasonably be expected to form the basis of any
         Environmental Claim against or affecting the Company.

                 (p)      (a) The Company has good title to its producing oil
         and gas properties, free and clear of all liens, encumbrances and
         defects, except (i) those described in the Prospectus or in any
         document incorporated therein by reference, (ii) liens securing taxes
         and other governmental charges, or claims of materialmen, mechanics and
         similar persons, not yet due and payable, (iii) liens and encumbrances
         under operating agreements, unitization and pooling agreements, and
         gas sales contracts, securing payments of amounts not yet due and
         payable and of a scope and nature customary in the oil and gas
         industry and
<PAGE>   8
                                                                               8


         (iv) liens, encumbrances and defects that do not, individually or in
         the aggregate, materially affect the value of such oil and gas
         properties or materially interfere with the Company's ability to
         conduct its business as currently conducted or to utilize such
         properties for their intended purposes; and (b) except to the extent
         described in the Prospectus or in any document incorporated therein by
         reference, the leases, options to lease, drilling concessions or other
         arrangements held by the Company reflect in all material respects the
         right of the Company to explore the unexplored and undeveloped acreage
         described in the Prospectus under the headings "Business -- Domestic
         Exploration Activities," "-- International Exploration Activities,"
         "-- Domestic Acreage," and "-- Foreign Acreage," and the care taken by
         the Company with respect to acquiring or otherwise procuring such
         leases, options to lease, drilling concessions and other arrangements
         was generally consistent with standard industry practices for
         acquiring or procuring leases to explore acreage for hydrocarbons;

                 (q)      Both the DECS and the Common Stock of the Company
         have been approved for listing on the New York Stock Exchange.

                 2.       Purchase and Sale.  (a)  Subject to the terms and
conditions and in reliance upon the representations and warranties herein set
forth, the Company agrees to sell to each Underwriter, and each Underwriter
agrees, severally and not jointly, to purchase from the Company, at a purchase
price of $(     ) per DECS, the number of shares of the Underwritten Securities
set forth opposite such Underwriter's name in Schedule I hereto.

                 (b)      Subject to the terms and conditions and in reliance
upon the representations and warranties herein set forth, the Company hereby
grants an option to the several Underwriters to purchase, severally and not
jointly, up to 1,605,000 shares of Option Securities at the same purchase price
per DECS as the Underwriters shall pay for the Underwritten Securities.  Said
option may be exercised only to cover over-allotments in the sale of the
Underwritten Securities by the Underwriters.  Said option may be exercised in
whole or in part at any time (but not more than once) on or before the 30th day
after the date of the Prospectus upon written or telegraphic notice by the
Underwriters to the Company setting forth the number of shares of the Option
Securities as to which the several
<PAGE>   9
                                                                               9


Underwriters are exercising the option and the settlement date.  Delivery of
certificates for the shares of Option Securities, and payment therefor, shall
be made as provided in Section 3 hereof.  The number of shares of the Option
Securities to be purchased by each Underwriter shall be the same percentage of
the total number of shares of the Option Securities to be purchased by the
several Underwriters as such Underwriter is purchasing of the Underwritten
Securities, subject to such adjustments as you in your absolute discretion
shall make to eliminate any fractional shares.

                 3.       Delivery and Payment.  Delivery of and payment for
the Underwritten Securities and the Option Securities (if the option provided
for in Section 2(b) hereof shall have been exercised on or before the third
business day prior to the Closing Date) shall be made at 9:30 AM, New York City
time, on May ( ), 1994, which date and time may be postponed by agreement
between the Underwriters and the Company or as provided in Section 9 hereof
(such date and time of delivery and payment for the Securities being herein
called the "Closing Date").  Delivery of the Securities shall be made to the
Underwriters against payment by the several Underwriters of the purchase price
thereof to or upon the order of the Company by certified or official bank check
or checks drawn on or by a New York Clearing House bank and payable in next day
funds.  Delivery of the Underwritten Securities and the Option Securities shall
be made at such location as the Underwriters shall reasonably designate, which
location shall be designated at least one business day in advance of the
Closing Date, and payment for such Securities shall be made at the office of
Cravath, Swaine & Moore, Worldwide Plaza, 825 Eighth Avenue, New York, New
York.  Certificates for the Securities shall be registered in such names and in
such denominations as the Underwriters may request not less than two full
business days in advance of the Closing Date.

                 The Company agrees to have the Securities available for
inspection, checking and packaging by the Underwriters in New York, New York,
not later than 1:00 PM on the business day prior to the Closing Date.

                 If the option provided for in Section 2(b) hereof is exercised
after the third business day prior to the Closing Date, the Company will
deliver (at the expense of the Company) to the Underwriters, at the offices of
Cravath, Swaine & Moore, Worldwide Plaza, 825 Eighth Avenue, New York, New
York, on the date specified by the Underwriters
<PAGE>   10
                                                                              10


(which shall be within three business days after exercise of said option),
certificates for the Option Securities in such names and denominations as the
Underwriters shall have requested against payment of the purchase price
thereof, to or upon the order of the Company by certified or official bank
check or checks drawn on or by a New York Clearing House bank and payable in
next day funds.  If settlement for the Option Securities occurs after the
Closing Date, the Company will deliver to the Underwriters on the settlement
date for the Option Securities, and the obligation of the Underwriters to
purchase the Option Securities shall be conditioned upon receipt of,
supplemental opinions, certificates and letters confirming as of such date the
opinions, certificates and letters delivered on the Closing Date pursuant to
Section 6 hereof.

                 4.       Offering by Underwriters.  It is understood that the
several Underwriters propose to offer the Securities for sale to the public as
set forth in the Prospectus.

                 5.       Agreements.  The Company agrees with the several
Underwriters that:

                 (a)      Subject to the following sentence, the Company will
         use its reasonable best efforts to cause the Registration Statement,
         if not effective at the Execution Time, and any amendment thereof, to
         become effective.  Prior to the termination of the offering of the
         Securities, the Company will not file any amendment of the
         Registration Statement or supplement to the Prospectus unless the
         Company has furnished the Underwriters a copy for their review prior
         to filing and will not file any such proposed amendment or supplement
         to which the Underwriters reasonably object.  Subject to the foregoing
         sentence, if the Registration Statement has become or becomes
         effective pursuant to Rule 430A, or filing of the Prospectus is
         otherwise required under Rule 424(b), the Company will cause the
         Prospectus, properly completed, and any supplement thereto to be
         filed with the Commission pursuant to the applicable paragraph of
         Rule 424(b) within the time period prescribed and will provide
         evidence satisfactory to the Underwriters of such timely filing.
         The Company will promptly advise the Underwriters (i) when the
         Registration Statement, if not effective at the Execution Time, and
         any amendment thereto, shall have become effective, (ii) when the
         Prospectus, and any supplement thereto, shall have been filed (if
         required) with the Commission pursuant to
<PAGE>   11
                                                                              11


         Rule 424(b), (iii) when, prior to termination of the offering of the
         Securities, any amendment to the Registration Statement shall have
         been filed or become effective, (iv) of any request by the Commission
         for any amendment of the Registration Statement or supplement to the
         Prospectus or for any additional information, (v) of the issuance by
         the Commission of any stop order suspending the effectiveness of the
         Registration Statement or the institution or threatening of any
         proceeding for that purpose and (vi) of the receipt by the Company of
         any notification with respect to the suspension of the qualification
         of the Securities for sale in any jurisdiction or the initiation or
         threatening of any proceeding for such purpose.  The Company will use
         its reasonable best efforts to prevent the issuance of any such stop
         order and, if issued, to obtain as soon as possible the withdrawal
         thereof.

                 (b)      If, at any time when a prospectus relating to the
         Securities is required to be delivered under the Act, any event occurs
         as a result of which the Prospectus as then supplemented would include
         any untrue statement of a material fact or omit to state any material
         fact necessary to make the statements therein in the light of the
         circumstances under which they were made, not misleading, or if it
         shall be necessary to amend the Registration Statement or supplement
         the Prospectus to comply with the Act or the Exchange Act or the
         respective rules thereunder, the Company promptly will (i) prepare and
         file with the Commission, subject to the second sentence of paragraph
         (a) of this Section 5, an amendment or supplement which will correct
         such statement or omission or effect such compliance and (ii) supply
         any supplemented Prospectus to you in such quantities as you may
         reasonably request.

                 (c)      As soon as practicable, the Company will make
         generally available to its security holders and to the Underwriters an
         earnings statement or statements of the Company and its subsidiaries
         which will satisfy the provisions of Section 11(a) of the Act and Rule
         158 under the Act.

                 (d)      The Company will furnish to the Underwriters and
         counsel for the Underwriters, without charge, signed copies of the
         Registration Statement (including exhibits thereto) and, so long as
         delivery of a prospectus by an Underwriter or dealer may be required
<PAGE>   12
                                                                              12


         by the Act, as many copies of each Preliminary Prospectus and the
         Prospectus and any supplement thereto as the Underwriters may
         reasonably request.  The Company will pay the expenses of printing or
         other production of all documents relating to the offering.  Subject
         to the terms of paragraph (e) of this Section 5 and Sections 7 and 8
         hereof, it is agreed that the Underwriters will pay all of their own
         costs and expenses, including fees of their counsel, transfer taxes on
         resale of any of the Securities by them and any advertising expenses
         incurred in connection with the offer or sale of the Securities.  If
         is further agreed that the Company will pay all expenses in connection
         with the qualification of the Securities for offering and sale under
         state securities laws, including the fees and disbursements of counsel
         for the Underwriters in connection with the Blue Sky survey.

                 (e)      The Company will arrange for the qualification of the
         Securities for sale under the laws of such jurisdictions as the
         Underwriters may designate, will maintain such qualifications in
         effect so long as required for the distribution of the Securities and
         will pay the fee of the National Association of Securities Dealers,
         Inc., in connection with its review of the offering.

                (f)      The Company will not, for a period of 120 days
         following the Execution Time, without the prior written consent of
         Salomon Brothers Inc, offer, sell or contract to sell, or otherwise
         dispose of, directly or indirectly, or announce the offering of, any
         other shares of Common Stock or any securities convertible into, or    
         exchangeable for, shares of Common Stock; provided, however, that such
         restriction shall not affect the ability of the Company or its
         subsidiaries to take any such actions (i) as a consequence of
         obligations with respect to securities outstanding prior to the
         Execution Time, (ii) in connection with any employee benefit or
         incentive plans of the Company or (iii) in connection with the
         offering of the DECS or the conversion thereof.

                 (g)      The Company confirms as of the date hereof that it is
         in compliance with all provisions of Section 1 of Laws of Florida,
         Chapter 92-198,An Act Relating to Disclosure of Doing Business with
         Cuba, and the Company further agrees that if it commences engaging in
         business with the government of Cuba or with any person or affiliate
         located in Cuba after the
<PAGE>   13
                                                                              13


         date the Registration Statement becomes or has become effective with
         the Securities and Exchange Commission or with the Florida Department
         of Banking and Finance (the "Department"), whichever date is later, or
         if the information reported in the Prospectus, if any, concerning the
         Company's business with Cuba or with any person or affiliate located
         in Cuba changes in any material way, the Company will provide the
         Department notice of such business or change, as appropriate, in a
         form acceptable to the Department; provided, however, that the
         Company's obligation to provide such notice will terminate at the date
         at which the distribution of the Securities has terminated.

                 (h)      The Company will, promptly after the closing of this
         transaction, deposit the funds described in Section 3 of this
         Agreement in the Company's account at (BANK) (account #___________).
         Moreover, the Company will not use any of the proceeds from the sale
         of the DECS as a basis for a prepayment in respect of the Company's
         Senior Notes.  The Company will use such proceeds solely as described
         in the Prospectus under the caption "Use of Proceeds."

                 6.       Conditions to the Obligations of the Under-  writers.
The obligations of the Underwriters to purchase the Underwritten Securities and
the Option Securities, as the case may be, shall be subject to the accuracy of
the representations and warranties on the part of the Company contained herein
as of the Execution Time, the Closing Date and any settlement date pursuant to
Section 3 hereof, to the accuracy of the statements of the Company made in any
certificates pursuant to the provisions hereof, to the performance by the
Company of its obligations hereunder and to the following additional
conditions:

                 (a)      If the Registration Statement has not become
         effective prior to the Execution Time, unless the Underwriters agree
         in writing to a later time, the Registration Statement will become
         effective not later than (i) 6:00 PM New York City time, on the date
         of determination of the public offering price, if such determination
         occurred at or prior to 3:00 PM New York City time on such date or
         (ii) 12:00 Noon on the business day following the day on which the
         public offering price was determined, if such determination occurred
         after 3:00 PM New York City time on such date; if filing of the
         Prospectus, or any supplement thereto, is required pursuant to Rule
         424(b), the Prospectus,
<PAGE>   14
                                                                              14


         and any such supplement, will be filed in the manner and within the
         time period required by Rule 424(b); and no stop order suspending the
         effectiveness of the Registration Statement shall have been issued and
         no proceedings for that purpose shall have been instituted or
         threatened.

                 (b)      The Company shall have furnished to the Underwriters
         the opinion of Andrews & Kurth, L.L.P., counsel for the Company, dated
         the Closing Date, to the effect that:

                          (i)     the Company has been duly incorporated and is
                 validly existing as a corporation in good standing under the
                 laws of the State of Delaware with full corporate power and
                 authority to own its properties and conduct its business as
                 described in the Prospectus;

                          (ii)    the Company's authorized equity
                 capitalization is as set forth in the Prospectus; the capital
                 stock of the Company conforms in all material respects to the
                 description thereof contained in the Prospectus; the
                 outstanding shares of Common Stock have been duly and validly
                 authorized and issued and are fully paid and nonassessable;
                 the shares of Common Stock registered in the Registration
                 Statement have been duly and validly authorized; the
                 Securities have been duly and validly authorized, and, when
                 issued and delivered to and paid for by the Underwriters
                 pursuant to this Agreement, will be validly issued, fully paid
                 and nonassessable; the Common Stock issued upon conversion of
                 the DECS will be validly issued, fully paid and nonassessable;
                 the Securities and the underlying common stock have been duly
                 authorized for listing, subject to official notice of
                 issuance, on the New York Stock  Exchange; the form of
                 certificates used to evidence the Securities complies with the
                 Company's Restated Certificate of Incorporation and By-laws
                 and the requirements of the Delaware General Corporation Law;
                 and the holders of outstanding shares of capital stock of the
                 Company are not entitled to preemptive or other rights to
                 subscribe for the Securities pursuant to the Company's
                 Restated Certificate of Incorporation or By-laws or any of the
                 agreements listed on Annex B hereto;
<PAGE>   15
                                                                              15



                          (iii)   the statements in the Prospectus under the
                 headings "Business and Properties--Other Business
                 Matters--Regulation of Crude Oil and Natural Gas", "Federal
                 Income Tax Considerations" and, to such counsel's knowledge,
                 "--Environmental Regulation" fairly summarize the matters
                 therein described;

                          (iv)    the Registration Statement has become
                 effective under the Act; any required filing of the
                 Prospectus, and any supplements thereto, pursuant to Rule
                 424(b) has been made in the manner and within the time period
                 required by Rule 424(b); to the knowledge of such counsel, no
                 stop order suspending the effectiveness of the Registration
                 Statement has been issued, no proceedings for that purpose
                 have been instituted or threatened and the Registration
                 Statement and the Prospectus (other than the financial
                 statements and other financial and statistical information
                 contained or incorporated therein by reference, and financial
                 data and other information included or incorporated therein
                 that is extracted from a report of Ryder Scott Company
                 pertaining to natural resource reserves, as to which such
                 counsel need express no opinion) comply as to form in all
                 material respects with the applicable requirements of the Act
                 and the Exchange Act and the respective rules and regulations
                 promulgated thereunder;

                          (v)     this Agreement has been duly authorized,
                 executed and delivered by the Company;

                          (vi)    to such counsel's knowledge, no consent,
                 approval, authorization or order of any court or governmental
                 agency or body is required for the consummation of the
                 transactions contemplated herein, except such as have been
                 obtained under the Act or the Exchange Act and such as may be
                 required under the blue sky laws of any jurisdiction in
                 connection with the purchase and distribution of the
                 Securities by the Underwriters and such other approvals
                 (specified in such opinion) as have been obtained;

                          (vii)   neither the issue and sale of the Securities,
                 nor the consummation of any other of the transactions herein
                 contemplated nor the fulfill-
<PAGE>   16
                                                                              16


                 ment of the terms hereof will result in a breach or violation
                 of, or constitute a default under any law or the Restated
                 Certificate of Incorporation or By-Laws of the Company or the
                 terms of any of the agreements listed in Annex B hereto or any
                 judgment, order or decree known to such counsel to be
                 applicable to the Company or any of its subsidiaries of any
                 court, regulatory body, administrative agency, governmental
                 body or arbitrator having jurisdiction over the Company or any
                 of its subsidiaries; and

                          (viii)  any holders of securities of the Company
                 known to such counsel to have rights to the registration of
                 such securities under the Registration Statement have waived
                 such rights.

                 In addition, such counsel shall state that they have
participated in conferences with officers and other representatives of the
Company, representatives of Price Waterhouse and the representatives of the
Underwriters at which the contents of the Registration Statement and the
Prospectus and related matters were discussed.  On the basis of the foregoing
(relying as to materiality to a large extent upon the opinions of the officers
and other representatives of the Company) such counsel shall state that they
have no reason to believe that, as of the Effective Time, the Registration
Statement or any further amendment thereto (other than the financial statements
and other financial and statistical information contained or incorporated by
reference therein, and the financial data and other information included or
incorporated by reference therein that is extracted from a report of Ryder
Scott Company pertaining to natural resource reserves, as to which such counsel
need make no statement) made by the Company prior to the Closing Date contained
an untrue statement of a material fact or omitted to state a material fact
required to be stated therein or necessary to make the statements therein not
misleading or that, as of its date, the Prospectus (other than the financial
statements and other financial and statistical information contained or
incorporated by reference therein, and the financial data and other information
included or incorporated by reference therein that is extracted from a report
of Ryder Scott Company pertaining to natural resource reserves, as to which
such counsel need make no statement) contained an untrue statement of a
material fact or omitted to state a material fact necessary to make the
statements therein, in light of the circumstances in which they were made, not
misleading or
<PAGE>   17
                                                                              17


that, as of such Closing Date, either the Registration Statement or the
Prospectus or any further amendment or supplement thereto (other than the
financial statements and other financial and statistical information contained
or incorporated by reference therein, and the financial data and other
information included or incorporated by reference therein that is extracted
from a report of Ryder Scott Company pertaining to natural resource reserves,
as to which such counsel need make no statement) made by the Company prior to
such Closing Date contains an untrue statement of a material fact or omits to
state a material fact necessary to make the statements therein, in light of the
circumstances in which they were made, not misleading; and such counsel does
not know of any contracts or other documents of a character required to be
filed or incorporated by reference as an exhibit to the Registration Statement
or required to be described in the Registration Statement or the Prospectus
which are not filed or incorporated by reference or described as required.

                 In rendering such opinion, such counsel may rely (A) as to
matters involving the application of laws of any jurisdiction other than the
State of Texas or the Delaware General Corporation Law or the laws of the
United States, to the extent they deem proper and specified in such opinion,
upon the opinion of other counsel of good standing whom they believe to be
reliable and who are satisfactory to counsel for the Underwriters and (B) as to
matters of fact (including, with respect to the opinions given in subsection
(vii) above, any computations required by financial or numerical covenants or
agreements of the Company), to the extent they deem proper, on certificates of
responsible officers of the Company and public officials.  References to the
Prospectus in this paragraph (b) include any supplements thereto at the Closing
Date.

                 (c)      David L. Hicks, Vice President - Law and General
         Counsel for the Company, shall have furnished to you his opinion,
         dated the Closing Date, to the effect that:

                          (i)     Each of Santa Fe Pacific Exploration Company
                 and Santa Fe Energy Resources (Delaware), Ltd. (the
                 "Subsidiaries") has been duly incorporated and is validly
                 existing as a corporation in good standing under the laws of
                 its jurisdiction of incorporation; and all of the issued
                 shares of capital stock of each Subsidiary have been duly and
                 validly authorized and issued,
<PAGE>   18
                                                                              18


                 are fully paid and non-assessable, and, except as disclosed in
                 the Prospectus or in any document incorporated therein by
                 reference, are owned directly or indirectly by the Company,
                 free and clear of all liens, encumbrances, equities or claims;

                          (ii)    The Company and each Subsidiary has been duly
                 qualified as a foreign corporation for the transaction of
                 business and is in good standing under the laws of each
                 jurisdiction (other than its jurisdiction of incorporation) in
                 which it owns or leases properties, or conducts any business,
                 so as to require such qualification, or is subject to no
                 material liability or disability by reason of the failure to
                 be so qualified in any such jurisdiction;

                          (iii)   To such counsel's knowledge after reasonable
                 investigation and other than as described in the Prospectus or
                 in any document incorporated therein by reference, there is no
                 pending or threatened action, suit or proceeding before any
                 court or governmental agency, authority or body or any
                 arbitration involving the Company or any of its Subsidiaries
                 of a character required to be disclosed in the Registration
                 Statement, the material information of which is not disclosed
                 in the Prospectus or in any document incorporated therein by
                 reference, and there is no contract or other document to which
                 the Company or any of its subsidiaries is a party that is of a
                 character required to be filed or incorporated by reference as
                 an exhibit to the Registration Statement or required to be
                 described in the Registration Statement or the Prospectus
                 which is not so filed or incorporated or referenced or
                 described as required; and the statements in the Prospectus
                 under the headings "Business and Properties -- Other Business
                 Matters --Environmental Regulation" and "-- Legal Proceedings"
                 fairly summarize the matters therein described;

                          (iv)    Neither the issue and sale of the Securities,
                 nor the consummation of any other of the transactions herein
                 contemplated nor the fulfillment of the terms hereof will
                 result in a breach or violation of, or constitute a default
                 under any indenture or other agreement or
<PAGE>   19
                                                                              19


                 instrument to which the Company or any of its subsidiaries is
                 a party or bound; and

                          (v)     The holders of outstanding shares of capital
                 stock of the Company are not entitled to preemptive or other
                 rights to subscribe for the Securities, except as may be
                 provided in the Company's Restated Certificate of
                 Incorporation or By-laws or any agreement listed in
                 Annex B hereto.

                 (d)      The Underwriters shall have received from Cravath,
         Swaine & Moore, counsel for the Underwriters, such opinion or
         opinions, dated the Closing Date, with respect to the issuance and
         sale of the Securities, the Registration Statement, the Prospectus
         (together with any supplement thereto) and other related matters as
         the Underwriters may reasonably require, and the Company shall have
         furnished to such counsel such documents as they request for the
         purpose of enabling them to pass upon such matters.

                 (e)      The Company shall have furnished to the Underwriters
         a certificate of the Company, signed by the Chairman of the Board or
         the President and the principal financial or accounting officer of the
         Company, dated the Closing Date, to the effect that the signers of
         such certificate have carefully examined the Registration Statement,
         the Prospectus, any supplement to the Prospectus and this Agreement
         and that:

                          (i)     the representations and warranties of the
                 Company in this Agreement are true and correct in all material
                 respects on and as of the Closing Date with the same effect as
                 if made on the Closing Date and the Company has complied in
                 all material respects with all the agreements and satisfied in
                 all material respects all the conditions on its part to be
                 performed or satisfied at or prior to the Closing Date;

                          (ii)    no stop order suspending the effectiveness of
                 the Registration Statement has been issued and no proceedings
                 for that purpose have been instituted or, to the Company's
                 knowledge, threatened; and

                          (iii)   since the date of the most recent financial
                 statements included in the Prospectus (exclusive of any
                 supplement thereto), there has been no
<PAGE>   20
                                                                              20


                 material adverse change in the earnings, financial condition,
                 business affairs or business prospects of the Company and its
                 subsidiaries, taken as a whole, whether or not arising from
                 transactions in the ordinary course of business, except as set
                 forth in or contemplated in the Prospectus (exclusive of any
                 supplement thereto).

                 (f)      At the Execution Time and at the Closing Date, Price
         Waterhouse shall have furnished to the Underwriters a letter or
         letters, dated respectively as of the Execution Time and as of the
         Closing Date, in form and substance satisfactory to the
         Underwriters, confirming that they are independent accountants
         within the meaning of the Act and the Exchange Act and the respective
         applicable published rules and regulations thereunder and that they
         have performed a review of the unaudited interim financial information
         of the Company for the three month period ended March 31, 1994, as at
         March 31, 1994, in accordance with Statement on Accounting Standards
         No. 71 and stating in effect that:

                          (i)     in their opinion the audited financial
                 statements and financial statement schedules included or
                 incorporated in the Registration Statement and the Prospectus
                 and reported on by them comply in form in all material
                 respects with the applicable accounting requirements of the
                 Act and the Exchange Act and the related published rules and
                 regulations;

                          (ii)    on the basis of a reading of the latest
                 unaudited financial statements made available by the Company
                 and its subsidiaries; carrying out certain specified
                 procedures (but not an examination in accordance with
                 generally accepted auditing standards) which would not
                 necessarily reveal matters of significance with respect to the
                 comments set forth in such letter; a reading of the minutes of
                 the meetings of the stockholders, directors and executive and
                 audit committees of the Company and the Subsidiaries; and
                 inquiries of certain officials of the Company who have
                 responsibility for financial and accounting matters of the
                 Company and its subsidiaries as to transactions and events
                 subsequent to December 31,
<PAGE>   21
                                                                              21


                 1993, nothing came to their attention which caused them to
                 believe that:
 
                                  (1)      any unaudited consolidated financial
                          statements included or incorporated by reference in
                          the Registration Statement and the Prospectus do not
                          comply in form in all material respects with
                          applicable accounting requirements and with the
                          published rules and regulations of the Commission
                          with respect to financial statements included or
                          incorporated by reference in quarterly reports on
                          Form 10-Q under the Exchange Act; and said unaudited
                          consolidated condensed financial statements are not
                          in conformity with generally accepted accounting
                          principles applied on a basis substantially
                          consistent with that of the audited consolidated
                          financial statements included or incorporated by
                          reference in the Registration Statement and the
                          Prospectus;

                                  (2)      with respect to the periods
                          subsequent to March 31, 1994, there were any changes,
                          at a specified date not more than five business days
                          prior to the date of the letter, in the long-term
                          debt of the Company and its consolidated subsidiaries
                          or capital stock of the Company or decreases in the
                          shareholders' equity of the Company or the working
                          capital of the Company and its subsidiaries as
                          compared with the amounts shown on the March 31, 1994
                          consolidated balance sheet included in the
                          Registration Statement and the Prospectus, or for the
                          period from April 1, 1994 to such specified date
                          there were any decreases as compared with the
                          corresponding period in the preceding year, in
                          revenues, income from operations, income before
                          income taxes or net income of the Company and its
                          subsidiaries, except in all instances for changes or
                          decreases set forth in such letter, in which case the
                          letter shall be accompanied by an explanation by the
                          Company as to the significance thereof unless said
                          explanation is not deemed necessary by the
                          Representatives; or
<PAGE>   22
                                                                              22


                                  (3)      the amounts included in any
                          unaudited "capsule" information included or
                          incorporated by reference in the Registration
                          Statement and the Prospectus do not agree with the
                          amounts set forth in the unaudited financial
                          statements for the same periods or were not
                          determined on a basis substantially consistent with
                          that of the corresponding amounts in the audited
                          financial statements included or incorporated by
                          reference in the Registration Statement and the
                          Prospectus; and

                          (iii)   they have performed certain other specified
                 procedures as a result of which they determined that certain
                 information of an accounting, financial or statistical nature
                 (which is limited to accounting, financial or statistical
                 information derived from the general accounting records of the
                 Company and its subsidiaries) set forth in the Registration
                 Statement and the Prospectus,  including the information set
                 forth under the captions "Prospectus Summary", "Investment
                 Considerations", "Ratio of Earnings to Fixed Changes",
                 "Capitalization", "Selected Financial and Operating Data",
                 "Management's Discussion and Analysis of Financial Condition
                 and Results of Operations", "Business and Properties", and
                 "Description of Capital Stock" in the Prospectus, the
                 information included or incorporated in Items 1, 2, 6, 7 and
                 11 of the Company's Annual Report on Form 10-K, incorporated
                 by reference in the Registration Statement and the Prospectus,
                 and the information appearing in the Current Report on Form
                 8-K dated February 8, 1994 and incorporated by reference in
                 the Registration Statement and the Prospectus agrees with the
                 accounting records of the Company and its subsidiaries,
                 excluding any questions of legal interpretation.

                 References to the Prospectus in this paragraph (f) include any
                 supplement thereto at the date of the letter.

                 (g)      Subsequent to the Execution Time or, if earlier, the
         dates as of which information is given in the Registration Statement
         (exclusive of any post-effective amendment thereof) and the Prospectus
         (exclusive of any supplement thereto), there shall not
<PAGE>   23
                                                                              23


         have been (i) any change or decrease specified in the letter or
         letters referred to in paragraph (f) of this Section 6 or (ii) any
         change, or any development involving a prospective change, in or
         affecting the earnings, business affairs or business prospects of the
         Company and its subsidiaries the effect of which, in any case referred
         to in clause (i) or (ii) above, is, in the judgment of the
         Underwriters, so material and adverse as to make it impractical or
         inadvisable to proceed with the offering or delivery of the Securities
         as contemplated by the Registration Statement (exclusive of any
         post-effective amendment thereof) and the Prospectus (exclusive of any
         supplement thereto).

                 (h)      At the Execution Time, the Company shall have
         furnished to the Underwriters a letter substantially in the form of
         Exhibit A hereto from each officer and director (other than Rod F.
         Dammeyer) of the Company and from HC Associates and Minorco (U.S.A.)
         Inc. addressed to the Underwriters, in which each such person agrees
         not to offer, sell or contract to sell, or otherwise dispose of,
         directly or indirectly, or announce an offering of, any shares of
         Common Stock beneficially owned by such person or any securities
         convertible into, or exchangeable for, shares of Common Stock for a
         period of 120 days following the Execution Time without the prior
         written consent of Salomon Brothers, Inc, other than shares of Common
         Stock disposed of as bona fide gifts.

                 (i)      Subsequent to the Execution Time there shall not have
         been any decrease in the rating of any of the Company's debt
         securities or preferred stock by any "Nationally Recognized
         Statistical Rating Organization" (as defined for purposes of Rule
         436(g) under the Act) or any notice given of any intended or potential
         decrease in any such rating or of a possible change in any such rating
         that does not indicate the direction of the possible change.

                 (j)      Prior to the Closing Date, the Company shall have
         furnished to the Underwriters such further information, certificates
         and documents as the Underwriters may reasonably request not less than
         24 hours prior to the Closing Date.

                 If any of the conditions specified in this Section 6 shall not
have been fulfilled in all material respects when and as provided in this
Agreement, or if any of
<PAGE>   24
                                                                              24


the opinions and certificates mentioned above or elsewhere in this Agreement
shall not be in all material respects reasonably satisfactory in form and
substance to the Underwriters and counsel for the Underwriters, this Agreement
and all obligations of the Underwriters hereunder may be canceled at, or at any
time prior to, the Closing Date by the Underwriters.  Notice of such
cancellation shall be given to the Company in writing or by telephone or
telegraph confirmed in writing.

                 The documents required to be delivered by this Section 6 shall
be delivered at the office of Cravath, Swaine & Moore, counsel for the
Underwriters, at Worldwide Plaza, 825 Eighth Avenue, New York, New York, on the
Closing Date.

                 7.       Reimbursement of Underwriters' Expenses.  If the sale
of the Securities provided for herein is not consummated because any condition
to the obligations of the Underwriters set forth in Section 6 hereof is not
satisfied, because of any termination pursuant to Section 10 hereof or because
of any refusal, inability or failure on the part of the Company to perform any
agreement herein or comply with any provision hereof other than by reason of a
default by any of the Underwriters, the Company will reimburse the Underwriters
severally upon demand for all out-of-pocket expenses (including reasonable fees
and disbursements of counsel) that shall have been incurred by them in
connection with the proposed purchase and sale of the Securities.

                 8.       Indemnification and Contribution.  (a)  The Company
agrees to indemnify and hold harmless each Underwriter, the directors,
officers, employees and agents of each Underwriter and each person who controls
any Underwriter within the meaning of either the Act or the Exchange Act
against any and all losses, claims, damages or liabilities, joint or several,
to which they or any of them may become subject under the Act, the Exchange Act
or other Federal or state statutory law or regulation, at common law or
otherwise, insofar as such losses, claims, damages or liabilities (or actions
in respect thereof) arise out of or are based upon any untrue statement or
alleged untrue statement of a material fact contained in the registration
statement for the registration of the Securities as originally filed or in any
amendment thereof, or in any Preliminary Prospectus or the Prospectus, or in
any amendment thereof or supplement thereto, or arise out of or are based upon
the omission or alleged omission to state therein a material fact required to
be stated therein or
<PAGE>   25
                                                                              25


necessary to make the statements therein not misleading, and agrees to
reimburse each such indemnified party, as incurred, for any legal or other
expenses reasonably incurred by them in connection with investigating or
defending any such loss, claim, damage, liability or action; provided, however,
that the Company will not be liable in any such case to the extent that any
such loss, claim, damage or liability arises out of or is based upon any such
untrue statement or alleged untrue statement or omission or alleged omission
made therein in reliance upon and in conformity with written information
furnished to the Company by or on behalf of any Underwriter specifically for
inclusion therein; and provided further, with respect to any untrue statement
or omission of a material fact made in any Preliminary Prospectus, the
indemnity agreement contained in this Section 8(a) shall not inure to the
benefit of any Underwriter (or any of the directors, officers, employees and
agents of such Underwriter or any controlling person of such Underwriter) from
whom the person asserting any such loss, claim, damage or liability purchased
the Securities concerned, to the extent that any such loss, claim, damage or
liability of such Underwriter results from the fact that there was not sent or
given to such person, at or prior to the written confirmation of the sale of
such Securities to such person, a copy of the Prospectus (or such Prospectus as
supplemented) if the Company had previously furnished copies thereof to the
Underwriters, and in any case where such delivery is required by the Act and
the untrue statement or omission of a material fact contained in such
Preliminary Prospectus was corrected in such Prospectus (or such Prospectus as
supplemented).  This indemnity agreement will be in addition to any liability
which the Company may otherwise have.

                 (b)      Each Underwriter severally agrees to indemnify and
hold harmless the Company, each of its directors, each of its officers who
signs the Registration Statement, and each person who controls the Company
within the meaning of either the Act or the Exchange Act, to the same extent as
the foregoing indemnity from the Company to each Underwriter, but only with
reference to written information relating to such Underwriter furnished to the
Company by or on behalf of such Underwriter specifically for inclusion in the
documents referred to in the foregoing indemnity.  This indemnity agreement
will be in addition to any liability which any Underwriter may otherwise have.
The Company acknowledges that the statements set forth in the last paragraph of
the cover page and under the heading "Underwriting" in any Preliminary
Prospectus and the
<PAGE>   26
                                                                              26


Prospectus constitute the only information furnished in writing by or on behalf
of the several Underwriters for inclusion in any Preliminary Prospectus or the
Prospectus, and the Underwriters confirm that such statements are correct.

                 (c)      Promptly after receipt by an indemnified party under
this Section 8 of notice of the commencement of any action, such indemnified
party will, if a claim in respect thereof is to be made against the
indemnifying party under this Section 8, notify the indemnifying party in
writing of the commencement thereof; but the failure so to notify the
indemnifying party (i) will not relieve it from liability under paragraph (a)
or (b) above unless and to the extent it did not otherwise learn of such action
and such failure results in the forfeiture by or material prejudice to the
indemnifying party of substantial rights and defenses and (ii) will not, in any
event, relieve the indemnifying party from any obligations to any indemnified
party other than the indemnification obligation provided in paragraph (a) or
(b) above.  The indemnifying party shall be entitled to appoint counsel of the
indemnifying party's choice at the indemnifying party's expense to represent
the indemnified party in any action for which indemnification is sought (in
which case the indemnifying party shall not thereafter be responsible for the
fees and expenses of any separate counsel retained by the indemnified party or
parties except as set forth below); provided, however, that such counsel shall
be satisfactory to the indemnified party.  Notwithstanding the indemnifying
party's election to appoint counsel to represent the indemnified party in an
action, the indemnified party shall have the right to employ separate counsel
(including local counsel), and the indemnifying party shall bear the reasonable
fees, costs and expenses of one such separate counsel if (i) the use of counsel
chosen by the indemnifying party to represent the indemnified party would
present such counsel with a conflict of interest, (ii) the actual or potential
defendants in, or targets of, any such action include both the indemnified
party and the indemnifying party and the indemnified party shall have
reasonably concluded, based on the advice of counsel, that there may be legal
defenses available to it and/or other indemnified parties which are different
from or additional to those available to the indemnifying party, (iii) the
indemnifying party shall not have employed counsel satisfactory to the
indemnified party to represent the indemnified party within a reasonable time
after notice of the institution of such action or (iv) the indemnifying party
shall authorize the indemnified party to employ
<PAGE>   27
                                                                              27


separate counsel at the expense of the indemnifying party.  An indemnifying
party will not, without the prior written consent of the indemnified parties,
settle or compromise or consent to the entry of any judgment with respect to
any pending or threatened claim, action, suit or proceeding in respect of which
indemnification or contribution may be sought hereunder (whether or not the
indemnified parties are actual or potential parties to such claim or action)
unless such settlement, compromise or consent includes an unconditional release
of each indemnified party from all liability arising out of such claim, action,
suit or proceeding.  No indemnified party, without the prior written consent of
the indemnifying party, will settle or compromise or consent to the entry of
any judgment with respect to any pending or threatened claim, action, suit or
proceeding in respect of which indemnification or contribution may be sought
hereunder (whether or not the indemnifying party is an actual or potential
party to such claim or action) unless the indemnifying party fails to perform
its obligations hereunder.

                 (d)      In the event that the indemnity provided in paragraph
(a) or (b) of this Section 8 is unavailable to or insufficient to hold harmless
an indemnified party for any reason, the Company and the Underwriters agree to
contribute to the aggregate losses, claims, damages and liabilities (including
legal or other expenses reasonably incurred in connection with investigating or
defending same, subject to the provisions regarding the right to choose counsel
contained in the second and third sentences of paragraph (c) above)
(collectively "Losses") to which the Company and one or more of the
Underwriters may be subject in such proportion as is appropriate to reflect the
relative benefits received by the Company and by the Underwriters from the
offering of the Securities; provided, however, that in no case shall any
Underwriter (except as may be provided in any agreement among underwriters
relating to the offering of the Securities) be responsible for any amount in
excess of the underwriting discount or commission applicable to the Securities
purchased by such Underwriter hereunder.  If the allocation provided by the
immediately preceding sentence is unavailable for any reason, the Company and
the Underwriters shall contribute in such proportion as is appropriate to
reflect not only such relative benefits but also the relative fault of the
Company and of the Underwriters in connection with the statements or omissions
which resulted in such Losses as well as any other relevant equitable
considerations.  Benefits received by the Company shall be deemed to be equal
to the total net proceeds from the
<PAGE>   28
                                                                              28


offering (before deducting expenses), and benefits received by the Underwriters
shall be deemed to be equal to the total underwriting discounts and
commissions, in each case as set forth on the cover page of the Prospectus.
Relative fault shall be determined by reference to whether any alleged untrue
statement or omission relates to information provided by the Company or the
Underwriters.  The Company and the Underwriters agree that it would not be just
and equitable if contribution were determined by pro rata allocation or any
other method of allocation which does not take account of the equitable
considerations referred to above.  Notwithstanding the provisions of this
paragraph (d), no person guilty of fraudulent misrepresentation (within the
meaning of Section 11(f) of the Act) shall be entitled to contribution from any
person who was not guilty of such fraudulent misrepresentation.  For purposes
of this Section 8, each person who controls an Underwriter within the meaning
of either the Act or the Exchange Act and each director, officer, employee and
agent of an Underwriter shall have the same rights to contribution as such
Underwriter, and each person who controls the Company within the meaning of
either the Act or the Exchange Act, each officer of the Company who shall have
signed the Registration Statement and each director of the Company shall have
the same rights to contribution as the Company, subject in each case to the
applicable terms and conditions of this paragraph (d).

                 9.       Default by an Underwriter.  If any one or more
Underwriters shall fail to purchase and pay for any of the Securities agreed to
be purchased by such Underwriter or Underwriters hereunder and such failure to
purchase shall constitute a default in the performance of its or their
obligations under this Agreement, the remaining Underwriters shall be obligated
severally to take up and pay for (in the respective proportions which the
amount of Securities set forth opposite their names in Schedule I hereto bears
to the aggregate amount of Securities set forth opposite the names of all the
remaining Underwriters) the Securities which the defaulting Underwriter or
Underwriters agreed but failed to purchase; provided, however, that in the
event that the aggregate amount of Securities which the defaulting Underwriter
or Underwriters agreed but failed to purchase shall exceed 10% of the aggregate
amount of Securities set forth in Schedule I hereto, the remaining Underwriters
shall have the right to purchase all, but shall not be under any obligation to
purchase any, of the Securities, and if such nondefaulting Underwriters do not
purchase all the Securities, this Agreement will terminate without liability to
any
<PAGE>   29
                                                                              29


nondefaulting Underwriter or the Company.  In the event of a default by any
Underwriter as set forth in this Section 9, the Closing Date shall be postponed
for such period, not exceeding seven days, as the Underwriters shall determine
in order that the required changes in the Registration Statement and the
Prospectus or in any other documents or arrangements may be effected.  Nothing
contained in this Agreement shall relieve any defaulting Underwriter of its
liability, if any, to the Company and any nondefaulting Underwriter for damages
occasioned by its default hereunder.

                 10.      Termination.  This Agreement shall be subject to
termination in the absolute discretion of the Underwriters, by notice given
to the Company prior to delivery of and payment for the Securities, if after
the Execution Time and prior to such time (i) trading in the Company's Common
Stock shall have been suspended by the Commission or the New York Stock
Exchange or trading in securities generally on the New York Stock Exchange
shall have been suspended or limited or minimum prices shall have been
established on such Exchange, (ii) a banking moratorium shall have been
declared either by Federal or New York State authorities or (iii) there shall
have occurred any outbreak or escalation of hostilities, declaration by the
United States of a national emergency or war or other calamity or crisis the
effect of which on financial markets is such as to make it, in the judgment of
the Representatives, impracticable or inadvisable to proceed with the offering
or delivery of the Securities as contemplated by the Prospectus (exclusive of
any supplement thereto).

                 11.      Representations and Indemnities to Survive. The
respective agreements, representations, warranties, indemnities and other
statements of the Company or its officers and of the Underwriters set forth in
or made pursuant to this Agreement will remain in full force and effect,
regardless of any investigation made by or on behalf of any Underwriter or the
Company or any of the officers, directors or controlling persons referred to in
Section 8 hereof, and will survive delivery of and payment for the Securities.
The provisions of Sections 7 and 8 hereof shall survive the termination or
cancellation of this Agreement.

                 12.      Notices.  All communications hereunder will be in
writing and effective only on receipt, and, if sent to the Underwriters, will
be mailed, delivered or telegraphed and confirmed to them, care of Salomon
Brothers Inc, at Seven World Trade Center, New York, New York, 10048; or, if
sent to the Company, will be mailed, delivered or tele-
<PAGE>   30
                                                                              30


graphed and confirmed to it at 1616 South Voss Road, Suite 1000, Houston, Texas
77057, Attention:  General Counsel.

                 13.      Actions of Representatives.  Any action required or
permitted to be taken by the Underwriters hereunder may be taken by Salomon
Brothers Inc, and the Company shall be entitled to act and rely upon any action
so taken by Salomon Brothers Inc, as having been taken by the Underwriters.

                 14.      Successors.  This Agreement will inure to the benefit
of and be binding upon the parties hereto and their respective successors and
the officers and directors and controlling persons referred to in Section 8
hereof, and no other person will have any right or obligation hereunder.

                 15.      Applicable Law.  This Agreement will be governed by
and construed in accordance with the laws of the State of New York.
<PAGE>   31
                                                                              31


                 If the foregoing is in accordance with your understanding of
our agreement, please sign and return to us the enclosed duplicate hereof,
whereupon this letter and your  acceptance shall represent a binding agreement
among the Company and the several Underwriters.


                                           Very truly yours,

                                           Santa Fe Energy Resources, Inc.


                                           By: .....................  
                                                    (Title)

The foregoing Agreement is hereby
confirmed and accepted as of the
date first above written.

Salomon Brothers Inc
Lazard Freres & Co.
PaineWebber Incorporated

By:      Salomon Brothers Inc

By:
         ............................
                 Vice President
<PAGE>   32

                                                                       EXHIBIT A




                                                                  April __, 1994

Salomon Brothers Inc
Lazard Freres & Co.
PaineWebber Incorporated
c/o Salomon Brothers Inc
Seven World Trade Center
New York, New York 10048

Dear Sirs:

                 This letter is being delivered to you in connection with the
proposed Underwriting Agreement (the "Underwriting Agreement"), between Santa
Fe Energy Resources, Inc., a Delaware corporation (the "Company"), and each of
you as the Underwriters named therein, relating to an underwritten public
offering of shares of Dividend Enhanced Convertible Stock, $0.01 par value (the
"DECS"), of the Company.

                 In order to induce you and the other Underwriters to enter
into the Underwriting Agreement, the undersigned agrees not to offer, sell or
contract to sell, or otherwise dispose of, directly or indirectly, or announce
an offering of, any shares of common stock, $0.01 par value, of the Company
("Common Stock") beneficially owned by the undersigned or any securities
convertible into, or exchangeable for, shares of Common Stock for a period of
120-days following the day on which the Underwriting Agreement is executed
without your prior written consent; provided, however, that during such 120-day
period the undersigned may offer, sell or contract to sell, or otherwise
dispose of shares of Common Stock if (i) such offer, sale or contract to sell,
or other disposition is in a private sale or other transaction exempt from
registration under the Securities Act of 1933, as amended, and (ii) the
purchaser or transferee delivers to you a letter, substantially similar to this
agreement, whereby such purchaser or transferee agrees to be bound by the
covenant set forth in this paragraph, including this proviso in its entirety.
<PAGE>   33
                                                                               2


                 If for any reason the Underwriting Agreement shall be
terminated prior to the Closing Date (as defined in the Underwriting
Agreement), the agreement set forth above shall likewise be terminated.

                                        Yours very truly,

                                        (Signature of officer,
                                        director or major shareholder)

                                        (Name and address of officer,
                                        director or major shareholder)
<PAGE>   34

                                   SCHEDULE I




<TABLE>
<CAPTION>
                                                                      Number of DECS to
          Underwriters                                                  be Purchased   
          ------------                                                -----------------
 <S>                                                                  <C>
 Salomon Brothers Inc ...................

 Lazard Freres & Co......................

 PaineWebber Incorporated................
                                                                                        
                                                                      ------------------

           Total ........................                                  10,700,000    
                                                                      ==================
</TABLE>
<PAGE>   35
                                                                               2


                                    ANNEX A


<TABLE>
                 <S>                                     <C>
                 Alabama                                 Nevada
                 Alaska                                  New Mexico
                 Arizona                                 New York
                 Arkansas                                North Dakota
                 California                              Ohio
                 Colorado                                Oklahoma
                 Idaho                                   Oregon
                 Kansas                                  Pennsylvania
                 Louisiana                               South Dakota
                 Michigan                                Tennessee
                 Mississippi                             Texas
                 Montana                                 Utah
                 Nebraska                                Washington
                                                         West Virginia
</TABLE>         
<PAGE>   36
                                                                               3


                                    ANNEX B


1.       Note Agreement dated as of March 31, 1990, by and among Santa Fe
         Energy Resources, Inc. and various institutional investors relating to
         the issuance of $365,000,000 of Senior Notes maturing 1993-2005, as
         amended

2.       Amendment dated as of November 1, 1992, to Note Agreement dated as of
         March 31, 1990, by and among Santa Fe Resources, Inc.  and various
         institutional investors relating to the issuance of $365,000,000 of
         Senior Notes maturing 1993 to 2005, as amended

3.       Amendment dated as of December 31, 1993, to Note Agreement dated as of
         March 30, 1990, by and among Santa Fe Energy Resources, Inc. and
         various institutional investors, relating to the issuance of
         $365,000,000 of Senior Notes maturing 1993 to 2005, as amended

4.       Amended and Restated Revolving and Term Credit Agreement, dated as of
         March 16, 1994, among Santa Fe  Energy Resources Inc., the banks
         signatory thereto and Texas Commerce Bank National Association as
         Co-Agent and Administrative Agent and NationsBank of Texas, N.A. as
         Co-Agent

5.       Letter of Credit Agreement dated as of March 16, 1994, among Santa Fe
         Energy Resources, Inc., the banks signatory thereto and Texas Commerce
         Bank National Association as Co-Agent and Administrative Agent and
         NationsBank of Texas, N.A. as Co- Agent

6.       Credit Agreement dated as of June 30, 1987 among Santa Fe Energy
         Operating Partners, L.P. Morgan Guaranty Trust Company as agent, and
         the Lenders thereunder

7.       Agreement for the Allocation of the Consolidated Federal Income Tax
         Liability Among the Members of the Santa Fe Pacific Corporation
         ("SFP") Affiliated Group, as amended, dated December 23, 1983

8.       Spin Off Tax Indemnification Agreement between SFER, Inc. and SFP

9.       Agreement Concerning Taxes among Santa Fe Energy Resources, Inc.,
         certain subsidiaries, and SFP
<PAGE>   37
                                                                               4


10.      Agreements for the Allocation of the Combined State Income Tax
         Liability Among the Members of the Santa Fe Pacific Corporation
         Affiliated Group for the States of Arizona, California, Illinois,
         Kansas, New Mexico, Oregon and Utah

11.      Agreement of Limited Partnership, South Belridge Limited Partnership,
         dated as of October 31, 1990, by and between Santa Fe Energy
         Resources, Inc., and the Prudential Insurance Company of America

12.      Form of Net Profits Conveyance from Santa Fe Energy Resources, Inc.,
         to Texas Commerce Bank, Trustee of the Santa Fe Energy Royalty Trust

13.      Form of Wasson Conveyance from Santa Fe Energy Resources, Inc. to
         Texas Commerce Bank, Trustee of the Santa Fe Energy Royalty Trust

14.      Agreement for Purchase and Sale, dated as of October 26, 1993, by and
         among Santa Fe Energy Resources, Inc., Santa Fe Oil Company, Santa Fe
         Energy Operating Partners, L.P. and Vintage Petroleum, Inc.

15.      Agreement of Sale and Purchase dated December 2, 1993, by and among
         Santa Fe Energy Resources, Inc., Santa Fe Energy Operating Partners,
         L.P. and Bridge Oil and Gas, Inc.

16.      Agreement of Merger, dated as of July 28, 1993, among Santa Fe Energy
         Resources, Inc., Adobe Gas Pipeline Company and Hadson Corporation

17.      Amendment No. 1 dated as of July 28, 1993, to Agreement of Merger,
         dated as of July 28, 1993, among Santa Fe Energy Resources, Inc.,
         Adobe Gas Pipeline Company and Hadson Corporation

18.      Gas Marketing Agreement, dated as of December 14, 1993, between Santa
         Fe Energy Resources, Inc. and Hadson Corporation

19.      Stock Ownership and Registration Rights Agreement dated December 10,
         1991, by, between and among SFER, Inc., Minorco, and Minorco (U.S.A.)
         Inc.

<PAGE>   1

                                                           
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------




                        SANTA FE ENERGY RESOURCES, INC.

                   % Senior Subordinated Debentures Due 2004




                            ------------------------


                                   INDENTURE



                          Dated as of          , 1994



                            -------------------------





                       THE FIRST NATIONAL BANK OF BOSTON,

                                          Trustee



        
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   2

<TABLE>
<CAPTION>
                                                             TABLE OF CONTENTS


                                                                 ARTICLE 1                                  PAGE
                                                                                                            ----
                                                                                                       
                                                DEFINITIONS AND INCORPORATION BY REFERENCE             
                                                ------------------------------------------             
     <S>              <C>                                                                                     <C>
     SECTION 1.01.    Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .         1
     SECTION 1.02.    Other Definitions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        23
     SECTION 1.03.    Incorporation by Reference of Trust                                              
                        Indenture Act  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        23
     SECTION 1.04.    Rules of Construction  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        24
                                                                                                       
                                                                                                       
                                                                 ARTICLE 2                             
                                                                                                       
                                                              THE SECURITIES                           
                                                              --------------                           
                                                                                                       
                                                                                                       
     SECTION 2.01.    Form and Dating  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        24
     SECTION 2.02.    Execution and Authentication . . . . . . . . . . . . . . . . . . . . . . . . . .        25
     SECTION 2.03.    Registrar and Paying Agent . . . . . . . . . . . . . . . . . . . . . . . . . . .        25
     SECTION 2.04.    Paying Agent To Hold Money in Trust  . . . . . . . . . . . . . . . . . . . . . .        26
     SECTION 2.05.    Securityholder Lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        26
     SECTION 2.06.    Transfer and Exchange  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        27
     SECTION 2.07.    Replacement Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        27
     SECTION 2.08.    Outstanding Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        28
     SECTION 2.09.    Temporary Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        29
     SECTION 2.10.    Cancellation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        29
     SECTION 2.11.    Defaulted Interest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        29
                                                                                                       
                                                                                                       
                                                    ARTICLE 3                                          
                                                                                                       
                                                   REDEMPTION                                          
                                                   ----------                                          
                                                                                                       
                                                                                                       
     SECTION 3.01.    Notices to Trustee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        31
     SECTION 3.02.    Selection of Securities To Be                                                    
                        Redeemed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        31
     SECTION 3.03.    Notice of Redemption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        31
     SECTION 3.04.    Effect of Notice of Redemption . . . . . . . . . . . . . . . . . . . . . . . . .        32
     SECTION 3.05.    Deposit of Redemption Price  . . . . . . . . . . . . . . . . . . . . . . . . . .        33
     SECTION 3.06.    Securities Redeemed in Part  . . . . . . . . . . . . . . . . . . . . . . . . . .        33
</TABLE>

<PAGE>   3
                                                                               2


<TABLE>
<CAPTION>
                                                                                                           Page
                                                                                                           ----
                                                    ARTICLE 4                                        
                                                                                                     
                                                    COVENANTS                                        
                                                    ---------                                        
     <S>              <C>                                                                                    <C>
     SECTION 4.01.    Payment of Securities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       33
     SECTION 4.02.    SEC Reports  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       34
     SECTION 4.03.    Limitation on Indebtedness . . . . . . . . . . . . . . . . . . . . . . . . . . .       34
     SECTION 4.04.    Limitation on Restricted Payments  . . . . . . . . . . . . . . . . . . . . . . .       36
     SECTION 4.05.    Limitation on Restrictions on Distribu-                                        
                        tions from Restricted Subsidiaries   . . . . . . . . . . . . . . . . . . . . .       38
     SECTION 4.06.    Limitation on Sales of Assets  . . . . . . . . . . . . . . . . . . . . . . . . .       39
     SECTION 4.07.    Transactions with Affiliates . . . . . . . . . . . . . . . . . . . . . . . . . .       43
     SECTION 4.08.    Mandatory Repurchase upon Change of                                            
                        Control and Subsequent Rating                                                
                        Decline    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       45
     SECTION 4.09.    Compliance Certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       47
     SECTION 4.10.    Further Instruments and Acts . . . . . . . . . . . . . . . . . . . . . . . . . .       47
     SECTION 4.11.    Limitation on Liens  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       47
     SECTION 4.12.    Restricted and Unrestricted Subsi-                                             
                        diaries  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       48
     SECTION 4.13.    Limitation on Issuance and Sale of                                             
                        Capital Stock of Restricted                                                  
                        Subsidiaries   . . . . . . . .                                                       49
     SECTION 4.14.    Incurrence of Layered Indebtedness . . . . . . . . . . . . . . . . . . . . . . .       49
                                                                                                     
                                                                                                     
                                                    ARTICLE 5                                        
                                                                                                     
                                                SUCCESSOR COMPANY                                    
                                                -----------------                                    
                                                                                                     
                                                                                                     
     SECTION 5.01.    Merger, Consolidation and Sale of                                              
                        Assets   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       49
     SECTION 5.02.    Successor \ ENTITY  Substituted \  . . . . . . . . . . . . . . . . . . . . . . .       50
                                                                                                     
                                                                                                     
                                                    ARTICLE 6                                        
                                                                                                     
                                              DEFAULTS AND REMEDIES                                  
                                              ---------------------                                  
                                                                                                     
                                                                                                     
     SECTION 6.01.    Events of Default  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       51
     SECTION 6.02.    Acceleration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       53
     SECTION 6.03.    Other Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       53
     SECTION 6.04.    Waiver of Past Defaults  . . . . . . . . . . . . . . . . . . . . . . . . . . . .       54
     SECTION 6.05.    Control by Majority  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       54
     SECTION 6.06.    Limitation on Suits  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       54
</TABLE>

<PAGE>   4
                                                                              3



<TABLE>                             
<CAPTION>                                                                                            
                                                                                                           Page
                                                                                                           ----
     <S>              <C>                                                                                    <C>
     SECTION 6.07.    Rights of Holders To Receive Payment . . . . . . . . . . . . . . . . . . . . . .       55
     SECTION 6.08.    Collection Suit by Trustee . . . . . . . . . . . . . . . . . . . . . . . . . . .       55
     SECTION 6.09.    Trustee May File Proofs of Claim . . . . . . . . . . . . . . . . . . . . . . . .       55
     SECTION 6.10.    Priorities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       56
     SECTION 6.11.    Undertaking for Costs  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       56
     SECTION 6.12.    Waiver of Stay or Extension Laws . . . . . . . . . . . . . . . . . . . . . . . .       57
                                                                                                     
                                                                                                     
                                                    ARTICLE 7                                        
                                                                                                     
                                                     TRUSTEE                                         
                                                     -------                                         
                                                                                                     
                                                                                                     
     SECTION 7.01.    Duties of Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       57
     SECTION 7.02.    Rights of Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       58
     SECTION 7.03.    Individual Rights of Trustee . . . . . . . . . . . . . . . . . . . . . . . . . .       59
     SECTION 7.04.    Trustee's Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       59
     SECTION 7.05.    Notice of Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       59
     SECTION 7.06.    Reports by Trustee to Holders  . . . . . . . . . . . . . . . . . . . . . . . . .       60
     SECTION 7.07.    Compensation and Indemnity . . . . . . . . . . . . . . . . . . . . . . . . . . .       60
     SECTION 7.08.    Replacement of Trustee . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       61
     SECTION 7.09.    Successor Trustee by Merger  . . . . . . . . . . . . . . . . . . . . . . . . . .       62
     SECTION 7.10.    Eligibility; Disqualification  . . . . . . . . . . . . . . . . . . . . . . . . .       62
     SECTION 7.11.    Preferential Collection of Claims                                              
                        Against Company  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       63
                                                                                                     
                                                                                                     
                                                    ARTICLE 8                                        
                                                                                                     
                                       DISCHARGE OF INDENTURE; DEFEASANCE                            
                                       ----------------------------------                            
                                                                                                     
                                                                                                     
     SECTION 8.01.    Discharge of Liability on Securities;                                          
                        Defeasance   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       63
     SECTION 8.02.    Conditions to Defeasance . . . . . . . . . . . . . . . . . . . . . . . . . . . .       64
     SECTION 8.03.    Application of Trust Money . . . . . . . . . . . . . . . . . . . . . . . . . . .       65
     SECTION 8.04.    Repayment to Company . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       66
     SECTION 8.05.    Indemnity for Government                                                       
                        Obligations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       66
     SECTION 8.06.    Reinstatement  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       66
                                                                                                     
                                                                                                     
                                                    ARTICLE 9                                        
                                                                                                     
                                                   AMENDMENTS                                        
                                                   ----------                                        
                                                                                                     
     SECTION 9.01.    Without Consent of Holders . . . . . . . . . . . . . . . . . . . . . . . . . . .       67
     SECTION 9.02.    With Consent of Holders  . . . . . . . . . . . . . . . . . . . . . . . . . . . .       68
</TABLE>

<PAGE>   5
                                                                               4

<TABLE>
<CAPTION>                                                                                            
                                                                                                           Page
                                                                                                           ----
     <S>              <C>                                                                                    <C>
     SECTION 9.03.    Compliance with Trust Indenture Act  . . . . . . . . . . . . . . . . . . . . . .       69
     SECTION 9.04.    Revocation and Effect of Consents                                              
                        and Waivers  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       69
     SECTION 9.05.    Notation on or Exchange of                                                     
                        Securities   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       70
     SECTION 9.06.    Trustee To Sign Amendments . . . . . . . . . . . . . . . . . . . . . . . . . . .       70
     SECTION 9.07.    Payment for Consent  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       71
                                                                                                     
                                                                                                     
                                                   ARTICLE 10                                        
                                                                                                     
                                                  SUBORDINATION                                      
                                                  -------------                                      
                                                                                                     
                                                                                                     
     SECTION 10.01.   Agreement To Subordinate  . . . . . . . . . . . . . . . . . . . . . . . . . . . .      71
     SECTION 10.02.   Liquidation, Dissolution,                                                       
                        Bankruptcy   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       71
     SECTION 10.03.   Default on Senior Indebtedness  . . . . . . . . . . . . . . . . . . . . . . . . .      72
     SECTION 10.04.   Acceleration of Payment of                                                      
                        Securities   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       73
     SECTION 10.05.   When Distribution Must Be Paid                                                  
                        Over   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       73
     SECTION 10.06.   Subrogation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       73
     SECTION 10.07.   Relative Rights  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       74
     SECTION 10.08.   Subordination May Not Be Impaired                                              
                        by Company   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       74
     SECTION 10.09.   Rights of Trustee and Paying                                                    
                        Agent  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       75
     SECTION 10.10.   Distribution or Notice to                                                       
                        Representative   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       75
     SECTION 10.11.   Article 10 Not To Prevent Events of                                            
                        Default or Limit Right To                                                    
                        Accelerate   . . . . . . . . .                                                       75
     SECTION 10.12.   Trust Moneys Not Subordinated . . . . . . . . . . . . . . . . . . . . . . . . . .      75
     SECTION 10.13.   Trustee Entitled To Rely  . . . . . . . . . . . . . . . . . . . . . . . . . . . .      75
     SECTION 10.14.   Trustee To Effectuate                                                           
                        Subordination  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       76
     SECTION 10.15.   Trustee Not Fiduciary for Holders                                              
                        of Senior Indebtedness   . . . . . . . . . . . . . . . . . . . . . . . . . . .       76
     SECTION 10.16.   Reliance by Holders of Senior                                                   
                        Indebtedness on Subordination                                                
                        Provisions   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       76
</TABLE>
        
<PAGE>   6
                                                                              

                                                                               5



<TABLE>
<CAPTION>                                                                                            
                                                                                                           Page
                                                                                                           ----
                                                   ARTICLE 11                                        
                                                                                                     
                                                  MISCELLANEOUS                                      
                                                  -------------                                      
     <S>             <C>                                                                                     <C>
     SECTION 11.01.  Trust Indenture Act Controls  . . . . . . . . . . . . . . . . . . . . . . . . . .       77
     SECTION 11.02.  Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       77
     SECTION 11.03.  Communication by Holders with Other                                             
                       Holders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       78
     SECTION 11.04.  Certificate and Opinion as to                                                   
                       Conditions Precedent  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       78
     SECTION 11.05.  Statements Required in Certificate                                              
                       or Opinion  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       78
     SECTION 11.06.  Rules by Trustee, Paying Agent and                                              
                       Registrar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       79
     SECTION 11.07.  Legal Holidays  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       79
     SECTION 11.08.  Governing Law . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       79
     SECTION 11.09.  No Recourse Against Others  . . . . . . . . . . . . . . . . . . . . . . . . . . .       79
     SECTION 11.10.  Successors  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       79
     SECTION 11.11.  Multiple Originals  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       80
     SECTION 11.12.  Table of Contents; Headings . . . . . . . . . . . . . . . . . . . . . . . . . . .       80
     SECTION 11.13.  Severability  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       80
     SECTION 11.14.  No Adverse Interpretation of Other                                              
                       Agreements  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .       80
</TABLE> 


     Exhibit A - Form of Security

<PAGE>   7



<TABLE>
<CAPTION>
                                                           CROSS-REFERENCE TABLE

       TIA                                                                                                        INDENTURE
     SECTION                                                                                                       SECTION 
     -------                                                                                                      ---------
       <S>                       <C>                                                                                  <C>
       310(a)(1)                 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
                                                                                                                       7.10
          (a)(2)                 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               7.10
          (a)(3)                 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               N.A.
          (a)(4)                 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               N.A.
          (b)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               7.08; 7.10
          (c)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               N.A.
       311(a)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               7.11
          (b)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               7.11
          (c)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               N.A.
       312(a)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               2.05
          (b)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .              11.03
          (c)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .              11.03
       313(a)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               7.06
          (b)(1)                 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               N.A.
          (b)(2)                 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               7.06
          (c)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .              11.02
          (d)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               7.06
       314(a)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               4.02;
                                                                                                                       4.10; 11.02
          (b)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               N.A.
          (c)(1)                 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .              11.04
          (c)(2)                 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .              11.04
          (c)(3)                 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               N.A.
          (d)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               N.A.
          (e)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .              11.05
          (f)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               4.10
       315(a)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               7.01
          (b)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               7.05; 11.02
          (c)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               7.01
          (d)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               7.01
          (e)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               6.11
       316(a)(last sentence)     . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               2.08
          (a)(1)(A)              . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               6.05
          (a)(1)(B)              . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               6.04
          (a)(2)                 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               N.A.
          (b)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               6.07
       317(a)(1)                 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               6.08
          (a)(2)                 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               6.09
          (b)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .               2.04
       318(a)                    . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .              11.01
</TABLE>

                                        N.A. means Not Applicable.


     _____________________
     Note:  This Cross-Reference Table shall not, for any purpose, be deemed to
     be part of the Indenture.
<PAGE>   8



                                  INDENTURE dated as of            , 1994,
                          between SANTA FE ENERGY RESOURCES, INC., a Delaware
                          corporation (the "Company"), and THE FIRST NATIONAL
                          BANK OF BOSTON, as trustee (the "Trustee").


                 Each party agrees as follows for the benefit of the other
party and for the equal and ratable benefit of the Holders of the Company's
% Senior Subordinated Debentures Due 2004 (the "Securities"):


                                   ARTICLE 1

                   DEFINITIONS AND INCORPORATION BY REFERENCE


                 SECTION 1.01.  Definitions.

                 "Additional Assets" means (i) any Property (other than cash,
cash equivalents or securities) used in any business in which the Company or
any Restricted Subsidiary is engaged as of the date hereof or any business
ancillary thereto, (ii) securities representing 100% of the equity of an issuer
engaged in any such business or (iii) Permitted Business Investments.

                 "Affiliate" of any specified Person means any other Person (i)
which directly or indirectly through one or more intermediaries controls, or is
controlled by, or is under common control with, such specified Person, or (ii)
which beneficially owns or holds directly or indirectly 10% or more of any
class of the Voting Stock or Voting Redeemable Stock of such specified Person
or of any Subsidiary of such specified Person.  For the purposes of this
definition, "control", when used with respect to any specified Person, means
the power to direct the management and policies of such Person directly or
indirectly, whether through the ownership of Voting Stock, by contract or
otherwise; and the terms "controlling" and "controlled" have meanings
correlative to the foregoing.

                 "Asset Sale" means, with respect to any Person, any transfer,
conveyance, sale, lease or other disposition (including, without limitation,
dispositions pursuant to any consolidation or merger, but excluding any Sale
and Leaseback Transaction) by such Person or any of its

<PAGE>   9
Restricted Subsidiaries in any single transaction or series of transactions of
(a) shares of Capital Stock or other ownership interests of another Person
(including transfers of outstanding Capital Stock of, and issuances of Capital
Stock by, Restricted Subsidiaries and Unrestricted Subsidiaries that are owned
directly by the Company or a Restricted Subsidiary) or (b) any other Property
of such Person or any of its Restricted Subsidiaries; provided, however, that
the term "Asset Sale" shall not include (i) the sale or transfer of Permitted
Short-Term Investments, inventory or other Property (or interests therein) in
the ordinary course of business, or the sale or transfer of oil and gas
properties or direct or indirect interests in real property, provided that at
the time of such sale or transfer such properties and interests do not have
associated with them any proved reserves (whether or not in the ordinary course
of business); (ii) a sale or transfer of hydrocarbons or other mineral products
in the ordinary course of business of the oil and gas production or marketing
operations conducted by the Company and its Restricted Subsidiaries; (iii) the
liquidation of Property received in settlement of debts owing to the Company or
any Restricted Subsidiary as a result of foreclosure, perfection or enforcement
of any Lien or debt, which debts were owing to the Company or any Restricted
Subsidiary in the ordinary course of business of the Company or such Restricted
Subsidiary; (iv) when used with respect to the Company, any asset disposition
permitted pursuant to Section 5.01 which constitutes a disposition of all or
substantially all of the Company's assets; or (v) the sale or transfer of any
Property or Capital Stock by the Company to a Restricted Subsidiary or by a
Restricted Subsidiary to the Company or by a Restricted Subsidiary to a
Restricted Subsidiary.

                 "Average Life" means, as of the date of determination, with
respect to any Indebtedness or Preferred Stock, the quotient obtained by
dividing (i) the sum of the products of (x) the numbers of years from the date
of determination to the dates of each successive scheduled principal payment of
such Indebtedness or redemption or similar payment with respect to such
Preferred Stock multiplied by (y) the amount of such payment by (ii) the sum of
all such payments.

                 "Bank Credit Facilities" means with respect to any Person, one
or more debt facilities or commercial paper facilities with banks or other
institutional lenders, whether or not in effect on the date of this Indenture,

<PAGE>   10
                                                                               3


providing for revolving credit loans, term loans, receivables financing
(including through the sale of receivables to such lenders or to special
purpose entities formed to borrow from such lenders against such receivables)
or letters of credit.  Notwithstanding the foregoing, if the Company or any
Restricted Subsidiary chooses to Incur Indebtedness under any such facility
after the Issue Date of the Securities in compliance with Section 4.03 but not
in reliance on the exception provided by clause (c) thereof or clause (l)
thereof (with respect to a refinancing of Indebtedness under Bank Credit
Facilities), such Indebtedness shall not constitute Indebtedness under Bank
Credit Facilities for purposes of this Indenture.

                 "Board of Directors" means the Board of Directors of the
Company or any committee thereof duly authorized to act on behalf of such
Board.

                 "Board Resolution" means a resolution duly adopted by the
Board of Directors that is in full force and effect at the time of
determination and certified as such by the Secretary or an Assistant Secretary
of the Company.

                 "Business Day" means each day that is not a Legal Holiday.

                 "Capital Expenditure Indebtedness" means Indebtedness Incurred
by any Person to finance a capital expenditure so long as (i) such capital
expenditure is or should be included as an "addition to oil and gas properties
and equipment, net" or "to property, plant or equipment" in accordance with
GAAP, and (ii) such Indebtedness is Incurred within 360 days of the date such
capital expenditure is made.

                 "Capital Lease Obligation" of any Person means the obligation
to pay rent or other payment amounts under a lease of (or other arrangement
conveying the right to use) real or personal property of such Person which is
required to be classified and accounted for as a capitalized lease or a
liability on the face of a balance sheet of such Person in accordance with
GAAP, to the extent required pursuant to GAAP.  For purposes of Section 4.11, a
Capital Lease Obligation shall be deemed to be secured by a Lien on the
property being leased.

                 "Capital Stock" in any Person means any and all shares,
interests, participations or other equivalents in

<PAGE>   11
                                                                               4


the equity interest (however designated) in such Person and any rights (other
than debt securities convertible into an equity interest), warrants or options
to subscribe for or to acquire an equity interest in such Person; provided,
however, that "Capital Stock" shall not include Redeemable Stock but shall,
with respect to the Company, include the 7% Preferred Stock.

                 "Change of Control" means the occurrence of any of the
following events: (i) any "person" (as such term is used in Sections 13(d) and
14(d) of the Exchange Act), other than one or more Permitted Holders or an
underwriter engaged in a firm commitment underwriting in connection with a
public offering of the Voting Stock of the Company, is or becomes the
"beneficial owner" (as defined in Rules 13d-3 and 13d-5 under the Exchange Act,
except that a person shall be deemed to have "beneficial ownership" of all
shares that any such person has the right to acquire, whether such right is
exercisable immediately or only after the passage of time), directly or
indirectly, of more than 35% of the total voting power of the Voting Stock of
the Company; (ii) during any period of two consecutive years, individuals who
at the beginning of such period constitute the Board of Directors of the
Company (together with any new directors whose election by such Board of
Directors or whose nomination for election by the shareholders of the Company
was approved by a vote of a majority of the directors of the Company then still
in office who were either directors at the beginning of such period or whose
election or nomination for election was previously so approved) cease for any
reason to constitute a majority of the Board of Directors then in office; or
(iii) the Company, either individually or in conjunction with one or more of
its Subsidiaries, sells, conveys, leases or otherwise transfers, or one or more
such Subsidiaries sell, convey, lease or otherwise transfer, all or
substantially all of the assets of the Company and the Restricted Subsidiaries,
taken as a whole, to any Person (other than a Restricted Subsidiary).

                 "Code" means the Internal Revenue Code of 1986, as amended.

                 "Company" means the party named as such in this Indenture
until a successor replaces it and, thereafter, means the successor and, for
purposes of any provision contained herein and required by the TIA, each other
obligor on the indenture securities.

<PAGE>   12
                                                                               5


                 "Consolidated Adjusted Net Income" of any Person means, for
any period, the aggregate net income (or net loss, as the case may be) of such
Person and its Restricted Subsidiaries for such period on a consolidated basis,
determined in accordance with GAAP, provided that there shall be excluded
therefrom, without duplication, (i) items classified as extraordinary (other
than the tax benefit of the utilization of net operating loss carryforwards and
alternative minimum tax credits), (ii) gains and losses from asset sales
outside the ordinary course of business, (iii) except to the extent of the
amount of cash dividends or other cash distributions actually paid to such
specified Person or its Restricted Subsidiaries by any other Person during such
period, the net income (or loss) of such other Person other than a Restricted
Subsidiary of such specified Person, (iv) the net income of any Person acquired
by such specified Person or any of its consolidated Restricted Subsidiaries in
a pooling-of-interests transaction for any period prior to the date of such
acquisition, (v) any gain or loss, net of taxes, realized on the termination of
any employee pension benefit plan, and (vi) the net income of any subsidiary of
such specified Person to the extent that the transfer to that Person of that
income is restricted by contract or otherwise, except for any dividends or
distributions actually paid by such subsidiary to such Person.

                 "Consolidated Interest Coverage Ratio" means as of the date of
the transaction giving rise to the need to calculate the Consolidated Interest
Coverage Ratio (the "Transaction Date"), the ratio of (i) the aggregate amount
of EBITDA of the Company and its consolidated Restricted Subsidiaries for the
four full fiscal quarters immediately prior to the Transaction Date to (ii) the
aggregate Consolidated Interest Expense of the Company and its Restricted
Subsidiaries that is anticipated to accrue during a period consisting of the
fiscal quarter in which the Transaction Date occurs and the three fiscal
quarters immediately subsequent thereto (based upon the pro forma amount and
maturity of, and interest payments in respect of, Indebtedness expected to be
outstanding on the Transaction Date), assuming the continuation of market
interest rates prevailing on the Transaction Date and base interest rates in
respect of floating interest rate obligations equal to the base interest rates
in effect as of the Transaction Date; provided, however, that if the Company or
any of its Restricted Subsidiaries is a party to any Interest Rate Protection
Agreements which would have the effect of

<PAGE>   13
                                                                               6


changing the interest rate on any Indebtedness of the Company or any of
its Restricted Subsidiaries for all (or any portion of) such four-quarter
period, the resulting rate shall be used for such four-quarter period (or
corresponding portion thereof); provided, further, that any Consolidated
Interest Expense with respect to Indebtedness Incurred or retired during the
fiscal quarter in which the Transaction Date occurs shall be calculated as if
such Indebtedness was so Incurred or retired on the first day of such fiscal
quarter.  In addition, if since the beginning of the four full fiscal quarter
period preceding the Transaction Date, (x) the Company or any of its Restricted
Subsidiaries shall have engaged in any asset sale out of the ordinary course of
business, EBITDA for such period shall be reduced by an amount equal to the
EBITDA (if positive), or increased by an amount equal to the EBITDA (if
negative), directly attributable to the assets which are the subject of such
asset sale for such period calculated on a pro forma basis as if such sale and
the receipt and application of the proceeds therefrom (including, without
limitation, any related retirement of Indebtedness) had occurred on the first
day of such period or (y) the Company or any of its Restricted Subsidiaries
shall have acquired any assets out of the ordinary course of business, EBITDA
shall be calculated on a pro forma basis as if such acquisition had occurred on
the first day of such four-quarter period.

                 "Consolidated Interest Expense" means, with respect to any
Person for any period, without duplication, (A) the sum of (i) the aggregate
amount of cash and noncash interest expense (including capitalized interest) of
such Person and its Restricted Subsidiaries for such period as determined on a
consolidated basis in accordance with GAAP in respect of Indebtedness
(including, without limitation, (v) any amortization of debt discount, (w) net
costs associated with any Interest Rate Protection Agreement (including any
amortization of discounts), (x) the interest portion of any deferred payment
obligation, (y) all accrued interest, and (z) all commissions, discounts,
commitment fees, origination fees and other fees and charges owed with respect
to Bank Credit Facilities and other Indebtedness) paid, accrued or scheduled to
be paid or accrued, during such period; (ii) dividends declared and payable on
Redeemable Stock of such Person (and of its Restricted Subsidiaries if paid to
a Person other than such Person or its Restricted Subsidiaries); (iii) the
portion of any rental obligation of such Person or its Restricted

<PAGE>   14
                                                                               7


Subsidiaries in respect of any Capital Lease Obligation allocable during such
period to interest expense in accordance with GAAP; (iv) the portion of any
rental obligation of such Person or its Restricted Subsidiaries in respect of
any Sale and Leaseback Transaction allocable during such period to interest
expense (determined as if such were treated as a Capital Lease Obligation); and
(v) to the extent any Indebtedness of any other Person is Guaranteed by such
Person or any of its Restricted Subsidiaries and on any determination date such
Indebtedness is in default or the Company reasonably should expect to make any
payments in respect of such Indebtedness during the four fiscal quarters
immediately following such date, the aggregate amount of interest paid, accrued
or scheduled to be paid or accrued, by such other Person during such period
attributable to any such Indebtedness, less (B) to the extent included in (A)
above, amortization or write-off of deferred financing costs (other than
discounts) of such Person and its Restricted Subsidiaries during such period
and any charge related to any premium or penalty paid in connection with
redeeming or retiring any Indebtedness of such Person and its Restricted
Subsidiaries prior to its Stated Maturity; in the case of both (A) and (B)
above, after elimination of intercompany accounts among such Person and its
Restricted Subsidiaries and as determined in accordance with GAAP.

                 "Consolidated Net Tangible Assets", as of any date of
determination, means the sum of the amounts that would appear on a consolidated
balance sheet of the Company and its consolidated Subsidiaries (other than
Unrestricted Subsidiaries) as the total assets (less accumulated depreciation
or amortization, allowances for doubtful receivables, other applicable reserves
and other properly deductible items) of the Company and its consolidated
Subsidiaries (other than Unrestricted Subsidiaries), determined on a
consolidated basis in accordance with GAAP, after giving effect to purchase
accounting and after deducting therefrom, to the extent otherwise included, the
amounts of (without duplication):  (i) the aggregate amount of liabilities of
the Company and its consolidated Subsidiaries (other than Unrestricted
Subsidiaries) which may properly be classified as current liabilities
(including taxes accrued as estimated), determined on a consolidated basis in
accordance with GAAP; (ii) minority interests in consolidated Subsidiaries held
by Persons other than the Company or a Restricted Subsidiary; (iii) the excess
of cost over Fair Market Value of assets or businesses acquired;

<PAGE>   15
                                                                               8


(iv) any revaluation or other write-up in book value of assets subsequent to
the last day of the fiscal quarter of the Company immediately preceding the
Issue Date as a result of a change in the method of valuation in accordance
with GAAP; (v) unamortized debt discount and expenses and other unamortized
deferred charges, goodwill, patents, trademarks, service marks, trade names,
copyrights, licenses, organization or developmental expenses and other
intangible items (if included in total assets); (vi) treasury stock (if
included in total assets); and (vii) cash set apart and held in a sinking or
other analogous fund established for the purpose of redemption or other
retirement of Capital Stock or Indebtedness or restricted cash (determined in
accordance with GAAP).

                 "Consolidated Net Worth" of any Person means the stockholders'
equity of such Person and its Restricted Subsidiaries, as determined on a
consolidated basis in accordance with GAAP, less (to the extent included in
stockholders' equity) amounts attributable to Redeemable Stock of such Person
or its Restricted Subsidiaries.

                 "DECS" means the Series A Convertible Preferred Stock, par
value $.01 per share, of the Company.

                 "Default" means any event, act or condition the occurrence of
which is, or after notice or the passage of time or both would be, an Event of
Default.

                 "Designated Senior Indebtedness" means any Senior Indebtedness
which has, at the time of determination, an aggregate principal amount
outstanding of at least $[     ] million (including the amount of all undrawn
commitments and matured and contingent reimbursement obligations pursuant to
letters of credit thereunder) and is specifically designated in the instrument
evidencing such Senior Indebtedness or is designated in an irrevocable notice
delivered by the Company to the holders or a Representative of the holders of
such Senior Indebtedness and the Trustee as "Designated Senior Indebtedness" of
the Company.  The Representative of any issue of Designated Senior Indebtedness
shall be the Person set forth as such in such instrument or notice unless the
Company and the Trustee receive written notification of the name and address of
a substitute Representative.

                 "Dollar-Denominated Production Payments" mean
dollar-denominated production payment obligations that are or, upon the
occurrence of a contingent event, would be

<PAGE>   16
                                                                               9


recorded as liabilities in accordance with GAAP.  Such obligations will be
deemed to constitute Indebtedness for borrowed money for purposes of this
Indenture.

                 "Dollar Equivalent" means, with respect to any monetary amount
in a currency other than U.S. dollars, at any time for the determination
thereof, the amount of U.S. dollars obtained by converting such foreign
currency involved in such computation into U.S. dollars at the spot rate for
the purchase of U.S. dollars with the applicable foreign currency as quoted by
Bankers Trust Company in New York City at approximately 11:00 a.m. (New York
time) on the date two Business Days prior to such determination.

                 "EBITDA" means with respect to any Person for any period, the
Consolidated Adjusted Net Income of such Person and its consolidated Restricted
Subsidiaries for such period, plus (a) the sum of, to the extent reflected in
the consolidated income statement of such Person and its Restricted
Subsidiaries for such period from which Consolidated Adjusted Net Income is
determined and deducted in the determination of such Consolidated Adjusted Net
Income, without duplication, (i) income tax expense, (ii) Consolidated Interest
Expense, (iii) depreciation and depletion expense, (iv) amortization expense,
and (v) any other non-cash charges including, without limitation, unrealized
foreign exchange losses, less (b) the sum of, to the extent reflected in the
consolidated income statement of such Person and its Restricted Subsidiaries
for such period from which Consolidated Adjusted Net Income is determined and
added in the determination of such Consolidated Adjusted Net Income, without
duplication, (i) income tax recovery and (ii) unrealized foreign exchange
gains.

                 "Exchange Act" means the Securities Exchange Act of 1934, as
amended.

                 "Fair Market Value" means, with respect to any assets to be
transferred pursuant to any Asset Sale or Sale and Leaseback Transaction or any
noncash consideration or Property transferred or received by any Person, the
fair market value of such consideration or property as determined in good faith
by (i) any Officer of the Company if such fair market value does not exceed $10
million and (ii) the Board of Directors of the Company as evidenced by a
certified resolution delivered to the Trustee if such fair market value exceeds
$10 million; provided that if such resolution indicates that such fair market
value exceeds $25 million

<PAGE>   17
                                                                              10


and such Transaction involves any Affiliate of the Company (other than a
Restricted Subsidiary), such resolution shall be accompanied by the written
opinion delivered to the Trustee of a nationally recognized investment banking
firm or another nationally recognized expert having sufficient expertise to the
effect that such consideration or property is fair, from a financial point of
view, to such Person.

                 "GAAP" means United States generally accepted accounting
principles as in effect on the date of this Indenture.

                 "Guarantee" by any Person means any obligation, contingent or
otherwise, of such Person guaranteeing or having the economic effect of
guaranteeing any Indebtedness of any other Person (the "primary obligor") in
any manner, whether directly or indirectly, and including, without limitation,
any Lien on the assets of such Person securing obligations of the primary
obligor and any obligation of such Person (i) to purchase or pay (or advance or
supply funds for the purchase or payment of) such Indebtedness or to purchase
(or to advance or supply funds for the purchase or payment of) any security for
the payment of such Indebtedness, (ii) to purchase Property, securities or
services for the purpose of assuring the holder of such Indebtedness of the
payment of such Indebtedness, or (iii) to maintain working capital, equity
capital or other financial statement condition or liquidity of the primary
obligor so as to enable the primary obligor to pay such Indebtedness (and
"Guaranteed", "Guaranteeing" and "Guarantor" shall have meanings correlative to
the foregoing); provided, however, that a Guarantee by any Person shall not
include endorsements by such Person for collection or deposit, in either case,
in the ordinary course of business.

                 "Hedging Agreements" means Interest Rate Protection Agreements
and Oil and Gas Purchase and Sale Contracts.

                 "Holder" or "Securityholder" means the Person in whose name a
Security is registered on the Registrar's books.

                 "Incur" means, with respect to any Indebtedness or other
obligation of any Person, to create, issue, incur (by conversion, exchange or
otherwise), extend, assume, Guarantee or otherwise become liable in respect of
such

<PAGE>   18
                                                                              11


Indebtedness or other obligation or the recording, as required pursuant to GAAP
or otherwise, of any such Indebtedness or obligation on the balance sheet of
such Person (and "Incurrence", "Incurred", "Incurrable" and "Incurring" shall
have meanings correlative to the foregoing); provided, however, that a change
in GAAP that results in an obligation of such Person that exists at such time
becoming Indebtedness shall not be deemed an Incurrence of such Indebtedness.

                 "Indebtedness" means at any time (without duplication), with
respect to any Person, whether recourse is to all or a portion of the assets of
such Person, and whether or not contingent, (i) any obligation of such Person
for borrowed money, (ii) any obligation of such Person evidenced by bonds,
debentures, notes, Guarantees or other similar instruments, including, without
limitation, any such obligations Incurred in connection with the acquisition of
Property, assets or businesses, (iii) any reimbursement obligation of such
Person with respect to letters of credit, bankers' acceptances or similar
facilities issued for the account of such Person, (iv) any obligation of such
Person issued or assumed as the deferred purchase price of Property or third
party services, (v) any Capital Lease Obligation of such Person, (vi) the
maximum fixed redemption or repurchase price of Redeemable Stock of such Person
at the time of determination, (vii) any payment obligation of such Person under
Hedging Agreements at the time of determination, (viii) any obligation to pay
rent or other payment amounts of such Person with respect to any Sale and
Leaseback Transaction to which such Person is a party, (ix) any Production
Payment, and (x) any obligation of the type referred to in clauses (i) through
(ix) of this paragraph of another Person and all dividends of another Person
the payment of which, in either case, such Person has Guaranteed or is
responsible or liable, directly or indirectly, as obligor, Guarantor or
otherwise.  For purposes of this definition, the maximum fixed repurchase price
of any Redeemable Stock that does not have a fixed repurchase price shall be
calculated in accordance with the terms of such Redeemable Stock as if such
Redeemable Stock were repurchased on any date on which Indebtedness shall be
required to be determined pursuant to this Indenture; provided, however, that
if such Redeemable Stock is not then permitted to be repurchased, the
repurchase price shall be the book value of such Redeemable Stock as reflected
in the most recent financial statements of such Person.  The amount of
Indebtedness of any Person at any date shall be the


<PAGE>   19
                                                                              12


outstanding balance at such date of all unconditional obligations as described
above and the maximum liability of any contingent obligations in respect
thereof at such date.

                 "Indenture" means this instrument as originally executed or as
it may from time to time be supplemented or amended by one or more indentures
supplemental hereto entered into pursuant to the applicable provisions hereof,
including, for all purposes of this instrument and any such supplemental
indenture, the provisions of the TIA that are deemed to be a part of and govern
this instrument, and any such supplemental indenture, respectively.

                 "Interest Rate Protection Agreement" means, with respect to
any Person, any interest rate swap agreement, forward rate agreement, interest
rate cap or collar agreement or other financial agreement or arrangement
designed to protect such Person or its Restricted Subsidiaries against
fluctuations in interest rates, as in effect from time to time.

                 "Investment" means, with respect to any Person (i) any amount
paid by such Person, directly or indirectly, to any other Person for Capital
Stock or other Property of, or as a capital contribution to, any other Person
(the amount of any investment made other than in cash to be determined by the
fair market value of such non-cash investment at the time so made) or (ii) any
direct or indirect loan or advance to any other Person (other than accounts
receivable of such Person arising in the ordinary course of business), but
excluding any increase in equity ownership in a Person resulting from retained
earnings of such Person.

                 "Issue Date" means the date on which the Securities are
originally issued.

                 "Lien" means, with respect to any Property, any mortgage or
deed of trust, pledge, hypothecation, assignment, deposit arrangement, security
interest, lien (statutory or other), charge, easement, encumbrance, preference,
priority or other security or similar agreement or preferential arrangement of
any kind or nature whatsoever on or with respect to such Property (including,
without limitation, any conditional sale or other title retention agreement
having substantially the same economic effect as any of the foregoing).  For
purposes of Section 4.11, a

<PAGE>   20
                                                                              13


Capital Lease Obligation shall be deemed to be secured by a Lien on the
property being leased.

                 "Liquid Securities" means securities (i) of an issuer that is
not an Affiliate of the Company, (ii) that are publicly traded on the New York
Stock Exchange, the American Stock Exchange or the Nasdaq National Market,
(iii) as to which the Company is not subject to any restrictions on sale or
transfer (including any volume restrictions under Rule 144 under the Securities
Act or any other restrictions imposed by the Securities Act) or as to which a
registration statement under the Securities Act covering the resale thereof is
in effect for as long as the securities are held and (iv) that are subsequently
sold or exchanged for cash or cash equivalents within 180 days of the receipt
thereof.

                 "Moody's" means Moody's Investors Service, Inc. and its
successors.

                 "Net Available Cash" from an Asset Sale means cash proceeds
received (including any cash proceeds received by way of deferred payment of
principal pursuant to a note or installment receivable or otherwise, but only
as and when received, and excluding any other consideration received in the
form of assumption by the acquiring person of Indebtedness or other obligations
relating to such properties or assets) therefrom, in each case net of (i) all
legal, title and recording tax expenses, commissions and other fees and
expenses incurred, and all Federal, state, provincial, foreign and local taxes
required to be paid or accrued as a liability under GAAP as a consequence of
such Asset Sale, (ii) all payments made on any Indebtedness which is secured by
any assets subject to such Asset Sale, in accordance with the terms of any Lien
upon such assets, or which must by its terms, or in order to obtain a necessary
consent to such Asset Sale or by applicable law, be repaid out of the proceeds
from such Asset Sale, (iii) all distributions and other payments required to be
made to minority interest holders in Subsidiaries or joint ventures as a result
of such Asset Sale and (iv) the deduction of appropriate amounts to be provided
by the seller as a reserve, in accordance with GAAP, against any liabilities
associated with the assets disposed of in such Asset Sale and retained by the
Company or any Restricted Subsidiary after such Asset Sale; provided, however,
that in the event that any consideration for an Asset Sale (which would
otherwise constitute Net Available Cash) is required to be

<PAGE>   21
                                                                              14


held in escrow pending determination of whether a purchase price adjustment
will be made, such consideration (or any portion thereof) shall become Net
Available Cash only at such time as it is released to such Person or its
Restricted Subsidiaries from escrow; and provided, further, however, that any
non-cash consideration received in connection with an Asset Sale which is
subsequently converted to cash shall be deemed to be Net Available Cash at such
time and shall thereafter be applied in accordance with Section 4.06.

                 "Officer" means the Chairman of the Board, the President, any
Vice President, the Treasurer or the Secretary of the Company.

                 "Officers' Certificate" means a certificate signed by two
Officers at least one of whom shall be the principal executive officer,
principal accounting officer or principal financial officer of the Company.

                 "Oil and Gas Business" means the business of the exploration
for, and development, acquisition, production, processing, marketing, refining,
storage and transportation of, hydrocarbons and other related energy and
natural resource businesses.

                 "Oil and Gas Liens" means (i) Liens on any specific property
or any interest therein, construction thereon or improvement thereto to secure
all or any part of the costs incurred for surveying, exploration, drilling,
extraction, development, construction, alteration, repair or improvement of,
in, under or on such property (it being understood that, in the case of oil and
gas producing properties, or any interest therein, costs incurred for
"development" shall include costs incurred for all facilities relating to such
properties or to projects, ventures or other arrangements of which such
properties form a part or which relate to such properties or interests); (ii)
Liens or the creation of encumbrances on an oil and/or gas producing property
to secure obligations incurred or guarantees of obligations incurred in
connection with or necessarily incidental to commitments for the purchase or
sale of, or the transportation or distribution of, the products derived from
such property; (iii) Liens reserved in oil and gas mineral leases for bonus or
rental payments and for compliance with the terms of such leases provided that
such Liens are limited to the oil and gas subject to the relevant leases; (iv)
Liens arising under partnership agreements, oil and gas leases, farm-out
agreements,

<PAGE>   22
                                                                              15


division orders, contracts for the sale, purchase, exchange, transportation,
gathering or processing of oil, gas or other hydrocarbons, unitization and
pooling designations, declarations, orders and agreements, development
agreements, operating agreements, area of mutual interest agreements, gas
balancing or deferred production agreements, injection, repressuring and
recycling agreements, salt water or other disposal agreements, seismic or
geophysical permits or agreements, and other agreements which are customary in
the Oil and Gas Business, provided in all instances that such Liens are limited
to the assets that are the subject of the relevant agreement and (v) Liens on
pipelines or pipeline facilities that arise by operation of law.

                 "Oil and Gas Purchase and Sale Contract" means, with respect
to any Person, any oil and gas agreements, and other agreements or
arrangements, or any combination thereof, designed to provide protection
against oil and gas price fluctuations.

                 "Opinion of Counsel" means a written opinion from legal
counsel who is acceptable to the Trustee.  The counsel may be an employee of or
counsel to the Company or the Trustee.

                 "pari passu", as applied to the ranking of any Indebtedness of
a Person in relation to other Indebtedness of such Person, means that each such
Indebtedness either (i) is not subordinate in right of payment to any
Indebtedness or (ii) is subordinate in right of payment to the same
Indebtedness as is the other, and is so subordinate to the same extent, and is
not subordinate in right of payment to each other or to any Indebtedness as to
which the other is not so subordinate.

                 "Permitted Business Investments" means Investments and
expenditures made in the ordinary course of, and of a nature customary for
companies actively engaged in, the Oil and Gas Business including, without
limitation, (i) ownership interests in oil and gas properties and (ii)
Investments and expenditures in the form of or pursuant to operating
agreements, processing agreements, farm-in agreements, farm-out agreements,
development agreements, area of mutual interest agreements, unitization
agreements, pooling arrangements, joint bidding agreements, service contracts,
partnership agreements (whether general or limited), capital stock in
corporations and subscription agreements, in, to or with third parties
(including

<PAGE>   23
                                                                              16


Unrestricted Subsidiaries), pursuant to which the Company or a Restricted
Subsidiary actively engages in the Oil and Gas Business through agreements,
transactions, interests or arrangements which permit it to share risks or
costs, comply with regulatory requirements regarding local ownership or satisfy
other objectives customarily achieved through the conduct of Oil and Gas
Business jointly with third parties.

                 "Permitted Holders" means Itel Corporation, HC Associates,
Minorco and Minorco (U.S.A.) Inc.

                 "Permitted Investment" means any and all of the following:
(a) Permitted Short-Term Investments; (b) Investments in property, plant,
equipment and other assets used in the ordinary course of the Oil and Gas
Business and Permitted Business Investments; (c) Investments in a Restricted
Subsidiary or in any other Person as a result of which such other Person
becomes a Restricted Subsidiary in compliance with Section 4.12; (d) negotiable
instruments held for collection; outstanding travel, moving and other like
advances to officers, employees and consultants; lease, utility and other
similar deposits; or stock, obligations or securities received in settlement of
debts owing to the Company or any of its Restricted Subsidiaries as a result of
foreclosure, perfection or enforcement of any Lien or Indebtedness, in each of
the foregoing cases in the ordinary course of business of the Company or such
Restricted Subsidiary; (e) other advances and loans to officers and employees
of the Company or any Subsidiary, provided such loans and advances do not
exceed $2 million at any one time outstanding; (f) Investments in the form of
securities received from Asset Sales, provided, that such Asset Sales are made
in compliance with Section 4.06; (g) payment of scheduled dividends on the 7%
Preferred Stock and the DECS in accordance with their terms (as well as payment
of any arrearages in such scheduled dividends) on the date of this Indenture;
(h) Investments pursuant to any agreement or obligation of the Company or any
of its Restricted Subsidiaries as in effect on the date of this Indenture
(other than Investments described in clauses (a) through (g) above) and (i)
other Investments with an aggregate Fair Market Value at any time not in excess
of $5 million.

                 "Permitted Short-term Investments" means any of the following:
(i) Investments in U.S. Government Obligations maturing within 180 days of the
date of acquisition thereof, (ii) Investments in time deposit

<PAGE>   24
                                                                              17


accounts, certificates of deposit and money market deposits maturing within 180
days of the date of acquisition thereof issued by a bank or trust company which
is organized under the laws of the United States of America, any State thereof
or any foreign country recognized by the United States of America having
capital, surplus and undivided profits aggregating in excess of $500 million
(or the Dollar Equivalent thereof) and whose long-term indebtedness is rated
"A" or higher according to Moody's (or such equivalent rating by at least one
"nationally recognized statistical rating organization" (as defined in Rule 436
under the Securities Act)), (iii) repurchase and reverse repurchase obligations
with a term of not more than seven days for underlying securities of the types
described in clause (i) entered into with a bank meeting the qualification
described in clause (ii), (iv) Investments in commercial paper, maturing not
more than 180 days after the date of acquisition, issued by a corporation
(other than an Affiliate of the Company) organized and in existence under the
laws of the United States of America, any State thereof or any foreign country
recognized by the United States of America with a rating at the time as of
which any investment therein is made of "P-1" (or higher) according to Moody's
or "A-1" (or higher) according to S&P and (v) pooled investments and
Investments in mutual funds all the assets of which consist of Investments and
other obligations of the types  described in clauses (i) through (iv) hereof.

                 "Person" means any individual, corporation, partnership, joint
venture, trust, unincorporated organization or government or any agency or
political subdivision thereof.

                 "Preferred Stock" of any Person means Capital Stock of such
Person of any class or classes (however designated) that ranks prior, as to the
payment of dividends and/or as to the distribution of assets upon any voluntary
or involuntary liquidation, dissolution or winding up of such Person, to shares
of Capital Stock of any other class of such Person; provided, however, that
"Preferred Stock" shall not include Redeemable Stock.

                 "principal" of a Security means the principal of the Security
plus the premium, if any, payable on the Security which is due or overdue or is
to become due at the relevant time.

<PAGE>   25
                                                                              18


                 "Production Payments" means, collectively, Dollar-Denominated
Production Payments and Volumetric Production Payments.

                 "Property" means, with respect to any Person, any interest of
such Person in any kind of property or asset, whether real, personal or mixed,
or tangible or intangible, including, without limitation, Capital Stock in any
other Person (but excluding Capital Stock or other securities issued by such
Person).

                 "Rating Agency" means S&P and Moody's or, if S&P or Moody's
shall have ceased to be a "nationally recognized statistical rating
organization" (as defined in Rule 436 under the Securities Act) or shall have
ceased to make publicly available a rating on any outstanding securities of any
company engaged primarily in the Oil and Gas Business, such other organization
or organizations, as the case may be, then making publicly available a rating
on the Securities as is (or are) selected by the Company.

                 "Rating Date" means the date which is 90 days prior to the
occurrence of a Change of Control.

                 "Rating Decline" means the occurrence on any date within the
90-day period following the occurrence of a Change of Control (which period
shall be extended so long as prior to the end of such 90-day period and
continuing thereafter the rating of the Securities is under publicly announced
consideration for possible downgrade by either Rating Agency) of:  (i) the
rating of the Securities by each Rating Agency within such period shall be at
least two Gradations below the rating of the Securities by such Rating Agency
on the Rating Date or (ii) either Rating Agency shall withdraw its rating of
the Securities.  A Gradation shall include changes within rating categories
(e.g., with respect to S&P, a decline in a rating from BB+ to BB, or from BB-
to B+, will constitute a decrease of one Gradation).

                 "Redeemable Stock" of any Person means any equity security of
such Person that by its terms (or by the terms of any security into which it is
convertible or for which it is exchangeable), or otherwise (including on the
happening of an event), is or could be required to be redeemed for cash or
other Property or is redeemable for cash or other Property at the option of the
holder thereof, in whole or in part, on or prior to the Stated Maturity of the
Securities; or by its terms is or could be exchangeable for Indebtedness

<PAGE>   26
                                                                              19


at any time, in whole or in part, on or prior to the Stated Maturity of the
Securities; provided, however, that Redeemable Stock shall not include any
security by virtue of the fact that it may be exchanged or converted at the
option of the holder or of the Company for Capital Stock of the Company having
no preference as to dividends or liquidation over any other Capital Stock of
the Company and provided, further, that Redeemable Stock shall not include the
7% Preferred Stock or the DECS.

                 "Representative" means the trustee, agent or other
representative expressly authorized to act in such capacity, if any, for an
issue of Senior Indebtedness.

                 "Restricted Subsidiary" means as of the date of determination
any Subsidiary of the Company all the outstanding Capital Stock and outstanding
Voting Redeemable Stock of which is held directly or indirectly by the Company
and other Restricted Subsidiaries.

                 "Sale and Leaseback Transaction" means, with respect to any
Person, any direct or indirect arrangement (excluding, however, any such
arrangement between such Person and a Restricted Subsidiary of such Person or
between one or more Restricted Subsidiaries of such Person) pursuant to which
Property is sold or transferred by such Person or a Restricted Subsidiary of
such Person and is thereafter leased back from the purchaser or transferee
thereof by such Person or one of its Restricted Subsidiaries.


                 "S&P" means Standard & Poor's Corporation and its successors.

                 "SEC" means the United States Securities and Exchange
Commission.

                 "Senior Indebtedness" means (i) all obligations of the Company
consisting of the principal of and premium, if any, and accrued and unpaid
interest due in respect of (A) Indebtedness of the Company for borrowed money
and (B) Indebtedness evidenced by notes, debentures, bonds or other similar
instruments permitted under this Indenture for the payment of which the Company
is responsible or liable; (ii) all Capital Lease Obligations of the Company;
(iii) all obligations of the Company (A) for the reimbursement of any obligor
on any letter of credit, bankers' acceptance or similar credit transaction or
(B) under Hedging Agreements; and (iv) all obligations of other persons of the
type

<PAGE>   27
                                                                              20


referred to in clauses (i), (ii) and (iii) for the payment of which the Company
is responsible or liable as Guarantor; provided that Senior Indebtedness does
not include any obligations in respect of (i) Indebtedness of the Company that
is by its terms subordinate or pari passu in right of payment to the
Securities; (ii) any Indebtedness Incurred or outstanding in violation of the
provisions of this Indenture; (iii) accounts payable or any other obligations
of the Company to trade creditors created, Incurred or assumed by the Company
in the ordinary course of business in connection with the obtaining of
materials or services; (iv) any liability for Federal, state, local or other
taxes owed or owing by the Company or (v) any obligation of the Company to any
Affiliate of the Company other than an obligation or obligations constituting
Permitted Business Investments.

                 "Secured Indebtedness" means any Indebtedness of the Company
secured by a Lien.

                 "Securities" means the Securities issued under this Indenture.

                 "7% Preferred Stock" means the Company's Convertible Preferred
Stock, Series 7%.

                 "Stated Maturity" means, with respect to any security, the
date specified in such security as the fixed date on which the payment of
principal of such security is due and payable, including pursuant to any
mandatory redemption provision (but excluding any provision providing for the
repurchase of such security at the option of the holder thereof upon the
happening of any contingency beyond the control of the issuer unless such
contingency has occurred).

                 "Subordinated Indebtedness" means any Indebtedness of the
Company (whether outstanding on the Issue Date or thereafter Incurred) which is
subordinate or junior in right of payment to the Securities.

                 "Subsidiary" of a Person means another Person a majority of
whose Voting Stock is at the time, directly or indirectly, owned or controlled
by (i) the first Person, (ii) the first Person and one or more of its
Subsidiaries or (iii) one or more of the first Person's Subsidiaries.

<PAGE>   28
                                                                              21


                  "Temporary Cash Investments" means any of the following:  (i)
Investments in U.S. Government Obligations maturing within 90 days of the date
of acquisition thereof, (ii) Investments in time deposit accounts, certificates
of deposit and money market deposits maturing within 90 days of the date of
acquisition thereof issued by a bank or trust company which is organized under
the laws of the United States of America, any State thereof or any foreign
country recognized by the United States of America having capital, surplus and
undivided profits aggregating in excess of $500 million (or the Dollar
Equivalent thereof) and whose long-term indebtedness is rated "A" or higher
according to Moody's (or such similar equivalent rating by at least one
"nationally recognized statistical rating organization" (as defined in Rule 436
under the Securities Act)), (iii) repurchase obligations with a term of not
more than seven days for underlying securities of the types described in clause
(i) above entered into with a bank meeting the qualifications described in
clause (ii) above, (iv) Investments in commercial paper, maturing not more than
90 days after the date of acquisition, issued by a corporation (other than an
Affiliate of the Company) organized and in existence under the laws of the
United States of America, ANY STATE THEREOF or any foreign country recognized
by the United States of America with a rating at the time as of which any
investment therein is made of "P-1" (or higher) according to Moody's or "A-1"
(or higher) according to S&P and (v) pooled investments and Investments in
mutual funds all the assets of which consist of Investments and other
obligations of the types described in clauses (i) through (iv) hereof.

                 "TIA" means the Trust Indenture Act of 1939 (15 U.S.C. Section
Section  77aaa-77bbbb) as in effect on the date of this Indenture; provided,
however, that in the event the Trust Indenture Act of 1939 is amended after
such date, "TIA" means, to the extent required by any such amendment, the Trust
Indenture Act of 1939, as so amended.

                 "Trustee" means the party named as such in this Indenture
until a successor replaces it in accordance with the provisions of this
Indenture and, thereafter, means the successor.

                 "Trust Officer" means ANY OFFICER IN THE CORPORATE TRUST
DIVISION of the TRUSTEE or any other officer assigned by the Trustee to
administer this Indenture.

<PAGE>   29
                                                                              22


                 "Uniform Commercial Code" means the New York Uniform
Commercial Code as in effect from time to time.

                 "Unrestricted Subsidiary" means (i) each Subsidiary of the
Company that the Company has designated pursuant to Section 4.12 as an
Unrestricted Subsidiary and (ii) any Subsidiary of an Unrestricted Subsidiary.

                 "U.S. Government Obligations" means direct obligations (or
certificates representing an ownership interest in such obligations) of the
United States of America (including any agency or instrumentality thereof) for
the payment of which the full faith and credit of the United States of America
is pledged and which are not callable or redeemable at the issuer's option.

                 "Volumetric Production Payments" mean volumetric production
payment obligations that are or, upon the occurrence of a contingent event,
would be recorded as liabilities in accordance with GAAP.  Such obligations
will be deemed to constitute Indebtedness for borrowed money for purposes of
this Indenture.

                 "Voting Redeemable Stock" of any Person means Redeemable Stock
of such Person which ordinarily has voting power for the election of directors
(or persons performing similar functions) of such Person whether at all times
or only so long as no senior class of securities has such voting power by
reason of any contingency.

                 "Voting Stock" of any Person means Capital Stock or Voting
Redeemable Stock of such Person which ordinarily has voting power for the
election of directors (or persons performing similar functions) of such Person
whether at all times or only so long as no senior class of securities has such
voting power by reason of any contingency.

<PAGE>   30
                                                                              23


<TABLE>
<CAPTION>
                 SECTION 1.02.  Other Definitions.
                                ------------------

                                                    DEFINED IN
                                  TERM                SECTION 
                                  ----              ----------
         <S>                                         <C>
         "Affiliate Transaction" ................     4.07
         "Bankruptcy Law" .......................     6.01
         "Blockage Notice" ......................    10.03
         "covenant defeasance option" ...........     8.01(b)
         "Custodian" ............................     6.01
         "Event of Default" .....................     6.01
         "Investment Grade Rating ...............     4.04
         "legal defeasance option" ..............     8.01(b)
         "Legal Holiday" ........................    11.07
         "Offer" ................................     4.06
          "Offer Amount" .........................    4.06
         "Offer Period" .........................     4.06
           "pay the Securities" ..................   10.03
         "Paying Agent" .........................     2.03
         "Payment Blockage Period" ..............    10.03
         "Permitted Indebtedness" ...............     4.03
         "Purchase Date" ........................     4.06
          "Registrar"...........................      2.03
         "Restricted Payment" ...................     4.04
         "Successor Company" ....................     5.01
</TABLE>

                 SECTION 1.03.  Incorporation by Reference of Trust Indenture
Act.  This Indenture is subject to the mandatory provisions of the TIA which
are incorporated by reference in and made a part of this Indenture.  The
following TIA terms have the following meanings:

                 "Commission" means the SEC.

                 "indenture securities" means the Securities.

                 "indenture security holder" means a Securityholder.

                 "indenture to be qualified" means this Indenture.

                 "indenture trustee" or "institutional trustee" means the
Trustee.

                 "obligor" on the indenture securities means the Company and
any other obligor on the indenture securities.

<PAGE>   31
                                                                              24


                 All other TIA terms used in this Indenture that are defined by
the TIA, defined by TIA reference to another statute or defined by SEC rule
have the meanings assigned to them by such definitions.

                 SECTION 1.04.  Rules of Construction.  Unless the context
otherwise requires:

                 (1) a term has the meaning assigned to it;

                 (2) an accounting term not otherwise defined has the meaning
                     assigned to it in accordance with GAAP;

                 (3) "or" is not exclusive;

                 (4) "including" means including without limitation;

                 (5) words in the singular include the plural and words in the
                     plural include the singular;

                 (6) unsecured Indebtedness shall not be deemed to be
         subordinate or junior to Secured Indebtedness merely by virtue of its
         nature as unsecured Indebtedness; and

                 (7) the principal amount of any noninterest bearing or other
         discount security at any date shall be the principal amount thereof
         that would be shown on a balance sheet of the issuer dated such date
         prepared in accordance with GAAP.


                                   ARTICLE 2

                                 THE SECURITIES


                 SECTION 2.01.  Form and Dating.  The Securities and the
Trustee's certificate of authentication shall be substantially in the form of
Exhibit A, which is hereby incorporated in and expressly made a part of this
Indenture.  The Securities may have notations, legends or endorsements required
by law, stock exchange rule, agreements to which the Company is subject, if
any, or usage (provided that any such notation, legend or endorsement is in a
form acceptable to the Company).  The Company shall furnish any such legend not
contained in Exhibit A to the Trustee in writing.  Each Security shall be dated
the date of its authentication.  The

<PAGE>   32
                                                                              25


terms of the Securities set forth in Exhibit A are part of the terms of this
Indenture.

                 SECTION 2.02.  Execution and Authentication.  Two Officers
shall sign the Securities for the Company by manual or facsimile signature.
The Company's seal shall be impressed, affixed, imprinted or reproduced on the
Securities and may be in facsimile form.

                 If an Officer whose signature is on a Security no longer holds
that office at the time the Trustee authenticates the Security, the Security
shall be valid nevertheless.

                 A Security shall not be valid until an authorized signatory of
the Trustee manually signs the certificate of authentication on the Security.
The signature shall be conclusive evidence that the Security has been
authenticated under this Indenture.

                 The Trustee shall authenticate and deliver Securities for
original issue in an aggregate principal amount of $100,000,000, upon a written
order of the Company signed by two Officers.  Such order shall specify the date
on which the original issue of Securities is to be authenticated and shall
further provide instructions concerning registration, amounts for each Holder
and delivery.  The aggregate principal amount of Securities outstanding at any
time may not exceed $100,000,000 except as provided in Section 2.07.

                 The Trustee may appoint an authenticating agent reasonably
acceptable to the Company to authenticate the Securities.  Unless limited by
the terms of such appointment, an authenticating agent may authenticate
Securities whenever the Trustee may do so.  Each reference in this Indenture to
authentication by the Trustee includes authentication by such agent.  An
authenticating agent has the same rights as any Registrar, Paying Agent or
agent for service of notices and demands.

                 SECTION 2.03.  Registrar and Paying Agent.  The Company shall
maintain in The City of New York an office or agency where Securities may be
presented for registration of transfer or for exchange (the "Registrar") and an
office or agency where Securities may be presented for payment (the "Paying
Agent").  The Registrar shall keep a register of the Securities and of their
transfer and exchange.  The Company may have one or more co-registrars and one
or more

<PAGE>   33
                                                                              26


additional paying agents.  The term "Paying Agent" includes any additional
paying agent.

                 The Company shall enter into an appropriate agency agreement
with any Registrar, Paying Agent or co-registrar not a party to this Indenture,
which shall incorporate the terms of the TIA.  The agreement shall implement
the provisions of this Indenture that relate to such agent.  The Company shall
notify the Trustee of the name and address of any such agent.  If the Company
fails to maintain or act as Registrar or Paying Agent, the Trustee shall act as
such and shall be entitled to appropriate compensation therefor pursuant to
Section 7.07.  The Company or any of its domestically incorporated wholly owned
Subsidiaries may act as Paying Agent, Registrar, co-registrar or transfer
agent.

                 The Company initially appoints the Trustee as Registrar and
Paying Agent in connection with the Securities.

                 SECTION 2.04.  Paying Agent To Hold Money in Trust.  On or
prior to each due date of the principal and interest on any Security, the
Company shall deposit with the Paying Agent a sum sufficient to pay such
principal and interest when so becoming due.  The Company shall require each
Paying Agent (other than the Trustee) to agree in writing that the Paying Agent
shall hold in trust for the benefit of Securityholders or the Trustee all money
held by the Paying Agent for the payment of principal of or interest on the
Securities and shall notify the Trustee of any default by the Company in making
any such payment.  If the Company or a Subsidiary acts as Paying Agent, it
shall segregate the money held by it as Paying Agent and hold it as a separate
trust fund.  The Company at any time may require a Paying Agent to pay all
money held by it to the Trustee and to account for any funds disbursed by the
Paying Agent.  Upon complying with this Section, the Paying Agent shall have no
further liability for the money delivered to the Trustee.

                 SECTION 2.05.  Securityholder Lists.  The Trustee shall
preserve in as current a form as is reasonably practicable the most recent list
available to it of the names and addresses of Securityholders.  If the Trustee
is not the Registrar, the Company shall furnish or cause to be furnished to the
Trustee, in writing at least five Business Days before each interest payment
date and at such other times as the Trustee may request in writing, a list in
such

<PAGE>   34
                                                                              27


form and as of such date as the Trustee may reasonably require of the names and
addresses of Securityholders.

                 SECTION 2.06.  Transfer and Exchange.  The Securities shall be
issued only in registered form without coupons, only in denominations of $1,000
and any integral multiple thereof and shall be transferable only upon the
surrender of a Security for registration of transfer.  When a Security is
presented to the Registrar or a co-registrar with a request to register a
transfer, the Registrar shall register the transfer as requested if the
requirements of Section 8-401(1) of the Uniform Commercial Code and any other
reasonable requirements of the Registrar are met.  When Securities are
presented to the Registrar or a co-registrar with a request to exchange them
for an equal principal amount of Securities of other authorized denominations,
the Registrar shall make the exchange as requested if the same requirements are
met.  To permit registration of transfers and exchanges, the Company shall
execute and the Trustee shall authenticate Securities at the Registrar's or
co-registrar's request.  The Company may require payment of a sum sufficient to
pay all taxes, assessments or other governmental charges in connection with any
transfer or exchange pursuant to this Section.

                 Prior to the due presentation for registration of transfer of
any Security, the Company, the Trustee, the Paying Agent, the Registrar or any
co-registrar may deem and treat the person in whose name a Security is
registered as the absolute owner of such Security for the purpose of receiving
payment of principal of and interest on such Security and for all other
purposes whatsoever, whether or not such Security is overdue, and none of the
Company, the Trustee, the Paying Agent, the Registrar or any co-registrar shall
be affected by notice to the contrary.

                 All Securities issued upon any transfer or exchange pursuant
to the terms of this Indenture will evidence the same debt and will be entitled
to the same benefits under this Indenture as the Securities surrendered upon
such transfer or exchange.

                 SECTION 2.07.  Replacement Securities.  If a mutilated
Security is surrendered to the Registrar or if the Holder of a Security claims
that the Security has been lost, destroyed or wrongfully taken, the Company
shall issue and the Trustee shall authenticate a replacement Security if the
requirements of Section 8-405 of the Uniform Commercial Code

<PAGE>   35
                                                                              28


are met and the Holder satisfies any other reasonable requirements of the
Trustee or the Company.  If required by the Trustee or the Company, such Holder
shall furnish an indemnity bond sufficient in the judgment of the Company and
the Trustee to protect the Company, the Trustee, the Paying Agent, the
Registrar and any co-registrar from any loss which any of them may suffer if a
Security is replaced.  The Company and the Trustee may charge the Holder for
their expenses in replacing a Security.

                 Every replacement Security is an additional obligation of the
Company.

                 SECTION 2.08.  Outstanding Securities.  Securities outstanding
at any time are all Securities authenticated by the Trustee except for those
canceled by it, those delivered to it for cancellation and those described in
this Section as not outstanding.  Except as set forth in this Section 2.08, a
Security does not cease to be outstanding because the Company or an Affiliate
of the Company holds the Security.

                 If a Security is replaced pursuant to Section 2.07, it ceases
to be outstanding unless the Trustee and the Company receive proof satisfactory
to them that the replaced Security is held by a bona fide purchaser.

                 If the Paying Agent segregates and holds in trust, in
accordance with this Indenture, on a redemption date or maturity date, money
sufficient to pay all principal and interest payable on that date with respect
to the Securities (or portions thereof) to be redeemed or maturing, as the case
may be, and the Paying Agent is not prohibited from paying such money to the
Securityholders on that date pursuant to the terms of this Indenture, then on
and after that date such Securities (or portions thereof) cease to be
outstanding and interest on them ceases to accrue.

                 In determining whether the Holders of the required principal
amount of Securities have concurred in any direction or consent or any
amendment, modification or other change to this Indenture, Securities owned by
the Company or by an Affiliate of the Company shall be disregarded and
considered as though they are not outstanding, except that for the purposes of
determining whether the Trustee shall be protected in relying on any such
direction, waiver or consent or any amendment, modification or other change to
this Indenture, only Securities which the Trustee knows are

<PAGE>   36
                                                                              29


so owned shall be so disregarded.  Securities so owned which have been pledged
in good faith shall not be disregarded if the pledgee establishes to the
satisfaction of the Trustee the pledgee's right so to act with respect to the
Securities and that the pledgee is not the Company or an Affiliate of the
Company.

                 SECTION 2.09.  Temporary Securities.  Until definitive
Securities are ready for delivery, the Company may prepare and the Trustee
shall authenticate temporary Securities.  Temporary Securities shall be
substantially in the form of definitive Securities but may have variations that
the Company considers appropriate for temporary Securities.  Without
unreasonable delay, the Company shall prepare and the Trustee shall
authenticate definitive Securities and deliver them in exchange for temporary
Securities.

                 SECTION 2.10.  Cancellation.  The Company at any time may
deliver Securities to the Trustee for cancellation.  The Registrar and the
Paying Agent shall forward to the Trustee any Securities surrendered to them
for registration of transfer, exchange or payment.  The Trustee and no one else
shall cancel and destroy (subject to the record retention requirements of the
Exchange Act) all Securities surrendered for registration of transfer,
exchange, payment or cancellation and deliver a certificate of such destruction
to the Company unless the Company directs the Trustee to deliver canceled
Securities to the Company.  The Company may not issue new Securities to replace
Securities it has redeemed, paid or delivered to the Trustee for cancellation.

                 SECTION 2.11.  Defaulted Interest.  Any interest on any
Security which is payable, but is not punctually paid or duly provided for, on
the dates and in the manner provided in the Securities and this Indenture
(herein called "Defaulted Interest") shall forthwith cease to be payable to the
Holder on the relevant record date by virtue of having been such Holder, and
such Defaulted Interest may be paid by the Company, at its election in each
case, as provided in clause (1) or (2) below:

                 (1)  The Company may elect to make payment of any Defaulted
         Interest to the Persons in whose names the Securities are registered
         at the close of business on a special record date for the payment of
         such Defaulted Interest, which shall be fixed in the following manner.

<PAGE>   37
                                                                              30


         The Company shall notify the Trustee in writing of the amount of
         Defaulted Interest proposed to be paid on each Security and the date
         of the proposed payment, and at the same time the Company shall make
         arrangements satisfactory to the Trustee for deposit with the Trustee
         on or prior to the date of the proposed payment an amount of money
         equal to the aggregate amount proposed to be paid in respect of such
         Defaulted Interest, such money when deposited to be held in trust for
         the benefit of the Persons entitled to such Defaulted Interest as in
         this clause provided.  Thereupon the Trustee shall fix a special
         record date for the payment of such Defaulted Interest which shall be
         not more than 15 days and not less than 10 days prior to the date of
         the proposed payment and not less than 10 days after the receipt by
         the Trustee of the notice of the proposed payment.  The Trustee shall
         promptly notify the Company of such special record date and, in the
         name and at the expense of the Company, shall cause notice of the
         proposed payment of such Defaulted Interest and the special record
         date therefor to be given to each Securityholder, not less than 10
         days prior to such special record date.  Notice of the proposed
         payment of such Defaulted Interest and the special record date
         therefor having been so mailed, such Defaulted Interest shall be paid
         to the Persons in whose names the Securities are registered at the
         close of business on such special record date.

                 (2)  The Company may make payment of any Defaulted Interest on
         the Securities in any other lawful manner not inconsistent with the
         requirements of any securities exchange on which the Securities may be
         listed, and upon such notice as may be required by such exchange, if,
         after notice given by the Company to the Trustee of the proposed
         payment pursuant to this clause, such manner of payment shall be
         deemed reasonably practicable by the Trustee.

                 Subject to the foregoing provisions of this Section 2.11, each
Security delivered under this Indenture upon registration of transfer of or in
exchange for or in lieu of any other Security shall carry the rights to
interest accrued and unpaid, and to accrue, which were carried by such other
Security.

<PAGE>   38
                                                                              31


                                   ARTICLE 3

                                   REDEMPTION


                 SECTION 3.01.  Notices to Trustee.  If the Company elects to
redeem Securities pursuant to paragraph 5 of the Securities it shall notify the
Trustee in writing of the redemption date, the principal amount of Securities
to be redeemed and the paragraph of the Securities pursuant to which the
redemption will occur.

                 The Company shall give each notice to the Trustee provided for
in this Section at least 35 days but not more than 60 days before the
redemption date unless the Trustee consents to a shorter period.  Such notice
shall be accompanied by an Officers' Certificate and an Opinion of Counsel from
the Company to the effect that such redemption will comply with the conditions
herein.  If fewer than all the Securities are to be redeemed, the record date
relating to such redemption shall be selected by the Company and given to the
Trustee, which record date shall be not less than 15 days after the date of
notice to the Trustee.

                 SECTION 3.02.  Selection of Securities To Be Redeemed.  If
fewer than all the Securities are to be redeemed, the Trustee shall select the
Securities to be redeemed pro rata or by lot or by a method that complies with
applicable legal and securities exchange requirements, if any, and that the
Trustee considers fair and appropriate and in accordance with methods generally
used at the time of selection by fiduciaries in similar circumstances.  The
Trustee shall make the selection from outstanding Securities not previously
called for redemption.  The Trustee may select for redemption portions of the
principal of Securities that have denominations larger than $1,000.  Securities
and portions of them the Trustee selects shall be in amounts of $1,000 or a
whole multiple of $1,000.  Provisions of this Indenture that apply to
Securities called for redemption also apply to portions of Securities called
for redemption.  The Trustee shall notify the Company promptly of the
Securities or portions of Securities to be redeemed.

                 SECTION 3.03.  Notice of Redemption.  At least 30 days but not
more than 60 days before a date for redemption of Securities, the Company shall
mail a notice of redemption by first-class mail to each Holder of Securities to
be redeemed at such Holder's registered address.

<PAGE>   39
                                                                              32



                 The notice shall identify the Securities to be redeemed and
shall state:

                 (1) the redemption date;

                 (2) the redemption price;

                 (3) the name and address of the Paying Agent;

                 (4) that Securities called for redemption must be surrendered
         to the Paying Agent at the address specified in such notice to collect
         the redemption price;

                 (5) if fewer than all the outstanding Securities are to be
         redeemed, the identification and principal amounts of the particular
         Securities to be redeemed;

                 (6) that, unless the Company defaults in making such
         redemption payment or the Paying Agent is prohibited from making such
         payment pursuant to the terms of this Indenture, interest on
         Securities (or portion thereof) called for redemption ceases to accrue
         and all other rights under this Indenture with respect to such
         Securities shall terminate on and after the redemption date;

                 (7) the paragraph of the Securities pursuant to which the
         Securities called for redemption are being redeemed;

                 (8) the CUSIP number of the Securities; and

                 (9) that no representation is made as to the correctness or
         accuracy of the CUSIP number, if any, listed in such notice or printed
         on the Securities.

                 At the Company's request, the Trustee shall give the notice of
redemption in the Company's name and at the Company's expense.  In such event,
the Company shall provide the Trustee with the information required by this
Section.

                 SECTION 3.04.  Effect of Notice of Redemption.  Once notice of
redemption is mailed, Securities called for redemption become due and payable
on the redemption date and at the redemption price stated in the notice.  Upon
surrender to the Paying Agent, such Securities shall be paid at the redemption
price stated in the notice, plus accrued

<PAGE>   40
                                                                              33


interest to the redemption date.  Failure to give notice or any defect in the
notice to any Holder shall not affect the validity of the notice to any other
Holder.

                 SECTION 3.05.  Deposit of Redemption Price.  Prior to the
redemption date, the Company shall deposit with the Paying Agent (or, if the
Company or a Subsidiary is the Paying Agent, shall segregate and hold in trust)
funds available on or prior to the redemption date sufficient to pay the
redemption price of and accrued interest on all Securities to be redeemed on
that date other than Securities or portions of Securities called for redemption
which have been delivered by the Company to the Trustee for cancellation.  The
Paying Agent shall promptly return to the Company any money so deposited which
is not required for that purpose upon the written request of the Company.

                 SECTION 3.06.  Securities Redeemed in Part.  Upon surrender of
a Security that is redeemed in part, the Company shall execute and the Trustee
shall authenticate for the Holder (at the Company's expense) a new Security
equal in principal amount to the unredeemed portion of the Security
surrendered.


                                   ARTICLE 4

                                   COVENANTS


                 SECTION 4.01.  Payment of Securities.  The Company shall
promptly pay the principal of and interest on the Securities on the dates and
in the manner provided in the Securities and in this Indenture.  Principal and
interest shall be considered paid on the date due if on such date the Trustee
or the Paying Agent holds in accordance with this Indenture money sufficient to
pay all principal and interest then due and the Trustee or the Paying Agent, as
the case may be, is not prohibited from paying such money to the
Securityholders on that date pursuant to the terms of this Indenture.

                 The Company shall pay interest on overdue principal at the
rate specified therefor in the Securities, and it shall pay interest on overdue
installments of interest at the same rate to the extent lawful.

<PAGE>   41
                                                                              34


                 SECTION 4.02.  SEC Reports.  The Company shall file with the
Trustee and provide Securityholders, within 15 days after it files them with
the SEC, copies of its annual report and the information, documents and other
reports which the Company is required to file with the SEC pursuant to Section
13 or 15(d) of the Exchange Act.  Notwithstanding that the Company may not be
required to remain subject to the reporting requirements of Section 13 or 15(d)
of the Exchange Act, the Company shall continue to file with the SEC and
provide the Trustee and Securityholders with the annual reports and the
information, documents and other reports which are specified in Sections 13 and
15(d) of the Exchange Act.  The Company also shall comply with the other
provisions of TIA Section  314(a).

                 SECTION 4.03.  Limitation on Indebtedness.  The Company will
not, and will not permit any of its Restricted Subsidiaries to, directly or
indirectly, Incur any Indebtedness unless (i) no Default or Event of Default
shall have occurred and be continuing at the time of such Incurrence or would
occur as a consequence of such Incurrence and (ii) such Indebtedness is
Permitted Indebtedness.

                 Permitted Indebtedness means any and all of the following:
(a) Indebtedness Incurred if, after giving pro forma effect to the Incurrence
of such Indebtedness and the receipt and application of the proceeds thereof,
the Consolidated Interest Coverage Ratio exceeds 3.0 to 1.0; (b) Indebtedness
evidenced by the Securities; (c) Indebtedness under Bank Credit Facilities but
only to the extent that the aggregate principal amount of all such Indebtedness
under Bank Credit Facilities equals or is less than $175 million (subject to
adjustment as described in Section 4.06); (d) Indebtedness under Interest Rate
Protection Agreements; provided that the obligations under such agreements are
related to payment obligations on Indebtedness otherwise permitted by the terms
of this covenant; (e) Indebtedness to the Company or any Restricted Subsidiary
by any of its Restricted Subsidiaries or Indebtedness of the Company to any of
its Restricted Subsidiaries; provided, however, that any subsequent issuance or
transfer of any Capital Stock which results in any such Restricted Subsidiary
ceasing to be a wholly owned Subsidiary of the Company or any Restricted
Subsidiaries or any subsequent transfer of any such Indebtedness (except to the
Company or any Restricted Subsidiary) will be deemed, in each case, to
constitute the incurrence of such Indebtedness

<PAGE>   42
                                                                              35


by the issuer thereof; (f) Capital Expenditure Indebtedness (provided that the
principal amount of such Indebtedness does not exceed the fair market value of
the property or asset with respect to which such expenditure is made, such fair
market value to be determined after giving effect to such expenditure) but only
to the extent the aggregate principal amount of all Capital Expenditure
Indebtedness Incurred under this clause (f) during any calendar year equals or
is less than $160 million; (g) Indebtedness under Oil and Gas Purchase and Sale
Contracts; provided that such contracts were entered into for the purpose of
limiting risks that arise in connection with the sale of oil and gas produced
by the Company and its Subsidiaries in the ordinary course of business; (h)
Indebtedness of any Person which shall merge into or consolidate with the
Company in accordance with Section 5.01, which Indebtedness was not Incurred in
anticipation of such merger or consolidation and was outstanding prior to such
merger or consolidation; (i) Indebtedness in connection with one or more
standby letters of credit, Guarantees or performance bonds issued in the
ordinary course of business and not in connection with the borrowing of money
or the obtaining of advances or credit (other than advances or credit on open
account, includable in current liabilities, for goods and services in the
ordinary course of business and on terms and conditions which are customary in
the Oil and Gas Business and other than the extension of credit represented by
such letter of credit, Guarantee or performance bond itself); (j) Indebtedness
not otherwise permitted to be Incurred pursuant to this paragraph, provided
that the aggregate principal amount of all Indebtedness Incurred pursuant to
this clause (j) does not exceed $50 million; (k) Indebtedness outstanding on
the date of this Indenture; (l) Indebtedness Incurred in exchange for, or the
proceeds of which are used to refinance, Indebtedness referred to in clauses
(a) through (k) of this paragraph or Indebtedness previously incurred pursuant
to this clause (l), provided that (i) such Indebtedness is in an aggregate
principal amount not in excess of the aggregate principal amount then
outstanding of the Indebtedness being exchanged or refinanced, (ii) such
Indebtedness has a Stated Maturity no earlier than the Stated Maturity of the
Indebtedness being exchanged or refinanced, (iii) such Indebtedness has an
Average Life at the time such Indebtedness is Incurred that is equal to or
greater than the Average Life of the Indebtedness being exchanged or refinanced
and (iv) such Indebtedness is subordinated in right of payment to Senior
Indebtedness or the Securities to at least the same extent, if any, as the

<PAGE>   43
                                                                              36


Indebtedness being exchanged or refinanced; and (m) accounts payable or other
obligations of the Company or any Restricted Subsidiary to trade creditors
created or assumed by the Company or such Restricted Subsidiary in the ordinary
course of business in connection with the obtaining of goods or services.  The
Company and its Restricted Subsidiaries may Incur Indebtedness under a single
debt facility or instrument in reliance on two or more of the aforementioned
clauses of the definition of Permitted Indebtedness.

                 SECTION 4.04.  Limitation on Restricted Payments. The Company
will not, and will not permit any Restricted Subsidiary to, directly or
indirectly, (i) declare or pay any dividend on, or make any distribution on or
in respect of, its Capital Stock or Redeemable Stock (including any such
payment (other than payments solely in its Capital Stock or in options,
warrants or other rights to purchase its Capital Stock) in connection with any
merger or consolidation involving the Company), except dividends or
distributions payable solely in its Capital Stock or in options, warrants or
other rights to purchase such Capital  Stock and except dividends or
distributions payable solely to the Company or any Restricted Subsidiary, (ii)
purchase, redeem or otherwise acquire for value any Capital Stock or Redeemable
Stock of the Company or any Restricted Subsidiary held by Persons other than
the Company or any Restricted Subsidiary, (iii) make any principal payment on,
or redeem, purchase, repurchase, defease or otherwise acquire or retire for
value prior to any scheduled repayment, scheduled sinking fund payment or other
scheduled maturity, any Indebtedness that is subordinated in right of payment
to the Securities or (iv) make any Investment in any Person (any such dividend,
distribution, purchase, redemption, repurchase, defeasance, other acquisition,
retirement or investment being herein referred to as a "Restricted Payment"),
unless at the time of and after giving effect to the proposed Restricted
Payment (a) no Default or Event of Default shall have occurred and be
continuing under this Indenture, (b) the Company could Incur at least $1.00 of
additional Indebtedness under clause (a) of the definition of "Permitted
Indebtedness" in Section 4.03 and (c) the aggregate amount of such Restricted
Payment and all other Restricted Payments (the amount so expended, if other
than in cash, to be determined in good faith by the Board of Directors of the
Company, whose determination shall be evidenced by a resolution of such Board)
declared or made since the date of this Indenture, would not exceed, without
duplication, the sum of (1) 50% of the Consolidated Adjusted

<PAGE>   44
                                                                              37


Net Income accrued during the period (treated as one accounting period) from
the quarter end on or before the date of this Indenture, to the end of the
Company's most recent fiscal quarter immediately preceding such proposed
Restricted Payment (or, if such Consolidated Adjusted Net Income shall be a
deficit, minus 50% of such deficit), (2) the aggregate net proceeds, including
cash and the Fair Market Value of Property other than cash, received by the
Company from the issue or sale of its Capital Stock (including pursuant to the
exercise of options or warrants or the making of any equity contribution by
stockholders of the Company subsequent to the date of this Indenture (other
than an issuance or sale to a Subsidiary of the Company or any employee stock
ownership plan or other trust established by the Company or any of its
Subsidiaries), (3) the amount by which the Indebtedness of the Company or any
Restricted Subsidiary is reduced on the Company's balance sheet upon the
conversion or exchange (other than by a Subsidiary of the Company), subsequent
to the date of this Indenture, of any Indebtedness or Redeemable Stock of the
Company or any Restricted Subsidiary into or for Capital Stock of the Company
(less the amount of any cash (other than interest on such Indebtedness accrued
and unpaid to the date of such conversion or exchange) or other property
distributed by the Company or any Restricted Subsidiary upon such conversion or
exchange) and (4) $50 million.

                 Any payments made pursuant to clauses (a) through (f) of the
definition of "Permitted Investment" shall be excluded for purposes of any
calculation of the aggregate amount of Restricted Payments.  Any payments made
pursuant to clauses (g), (h) and (i) of the definition of "Permitted
Investment" shall be included for purposes of any calculation of the aggregate
amount of Restricted Payments.

                 The foregoing limitations will not prevent the Company or any
Restricted Subsidiary from (a) paying a dividend on its Capital Stock within 60
days after declaration thereof if, on the declaration date, such dividend could
have been paid in compliance with this Indenture or (b) making Permitted
Investments, so long as no Default or Event of Default shall have occurred and
be continuing.

                 Notwithstanding the preceding provisions of this Section 4.04,
during any period of time that (i) the ratings assigned to the Securities by
both Rating Agencies are equal to or higher than BBB- and Baa3, respectively
(the

<PAGE>   45
                                                                              38


"Investment Grade Ratings"), and (ii) no Event of Default has occurred and is
continuing, the Company and its Restricted Subsidiaries will not be subject to
the provisions of this Section 4.04 that limit Restricted Payments.  In the
event that the Company is not subject to this Section 4.04 for any period of
time as a result of the preceding sentence and, subsequently, one or both
Rating Agencies withdraws its rating or downgrades the rating below the
required Investment Grade Ratings, then the Company and its Restricted
Subsidiaries will again be subject to this Section 4.04 and compliance with
this Section 4.04 with respect to Restricted Payments made after the time of
such withdrawal or downgrade will be calculated in accordance with the terms of
this Section 4.04 as if such terms had been in effect during the entire period
of time from the date of this Indenture.

                 SECTION 4.05.  Limitation on Restrictions on Distributions
from Restricted Subsidiaries.  The Company will not, and will not permit any of
its Restricted Subsidiaries to, directly or indirectly, create or otherwise
cause or suffer to exist or become effective, or enter into any agreement with
any person that would cause to become effective, any consensual encumbrance or
restriction on the legal right of any Restricted Subsidiary to (a) pay
dividends, in cash or otherwise, or make any other distributions on or in
respect of its Capital Stock or Redeemable Stock or any other interest in, or
measured by, its profits owned by, or pay any Indebtedness or other obligation
owed to, the Company or any other Restricted Subsidiary of the Company, (b)
make any loans or advances to the Company or any other Restricted Subsidiary or
(c) transfer any of its property or assets to the Company or any other
Restricted Subsidiary.  Such limitation will not apply (1) with respect to
clauses (b) and (c) of the preceding sentence only, to encumbrances and
restrictions (i) in existence under or by reason of any agreements in effect on
the date of this Indenture, (ii) existing at such Subsidiary at the time it
became a Restricted Subsidiary of the Company if (A) such encumbrance or
restriction was not created in anticipation of such Subsidiary becoming a
Restricted Subsidiary of the Company and (B) immediately following such
Subsidiary becoming a Restricted Subsidiary of the Company, on a pro forma
basis, the Company could Incur at least $1.00 of additional Indebtedness
pursuant to clause (a) of the second paragraph of Section 4.03 or (iii) which
result from the renewal, refinancing, extension or amendment of an agreement
referred to in the immediately

<PAGE>   46
                                                                              39


preceding clause (i) or (ii) provided such replacement or encumbrance or
restriction is no more restrictive to the Company or any Restricted Subsidiary,
and is released or removed by its terms no later, than that which it replaced,
(2) with respect to clause (c) of the preceding sentence only, to restrictions
in the form of Liens that are not prohibited pursuant to Section 4.11 and which
contain customary limitations on the transfer of collateral and (3) with
respect to clauses (a), (b) and (c) of the preceding sentence, to encumbrances
and restrictions on a Restricted Subsidiary so long as (x) such Restricted
Subsidiary (together with all other Restricted Subsidiaries subject to
encumbrances or restrictions permitted under this clause (3)) does not, during
the four full fiscal quarters immediately prior to the incurrence of such
encumbrance or restriction, represent 10% or more of the EBITDA of the Company
during such period and (y) at the date of the incurrence of such encumbrance or
restriction (after giving pro forma effect to the exclusion of such Restricted
Subsidiary from the calculation of the Consolidated Interest Coverage Ratio)
the Company could Incur at least $1.00 of additional Indebtedness pursuant to
clause (a) of Section 4.03.

                 SECTION 4.06.  Limitation on Sales of Assets.  (a)  The
Company will not, and will not permit any Restricted Subsidiary to, make any
Asset Sale unless (i) the Company or such Restricted Subsidiary, as the case
may be, receives consideration at the time of such Asset Sale at least equal to
the Fair Market Value of the shares and assets subject to such Asset Sale, (ii)
all the consideration paid to the Company or such Restricted Subsidiary in
connection with such Asset Sale is in the form of cash, cash equivalents,
Liquid Securities or the assumption by the purchaser of liabilities other than
Subordinated Indebtedness (provided, however, that (x) the Fair Market Value of
oil and gas properties with proved reserves received by the Company or a
Restricted Subsidiary in trade for other such properties (and, if the assets
traded by the Company or a Restricted Subsidiary consist of properties without
proved reserves, the Fair Market Value of properties with or without proved
reserves received in exchange for such traded properties) shall be treated as
cash for purposes of this clause (ii) and (y) the Company and its Restricted
Subsidiaries shall be permitted to receive securities other than cash
equivalents or Liquid Securities with an aggregate Fair Market Value (measured
as of the date of the then-proposed Asset Sale) not in excess

<PAGE>   47
                                                                              40


of:  (1) in connection with any one or series of related Asset Sales, 10% of
Consolidated Net Tangible Assets and (2) when considered with all other such
securities received in connection with Asset Sales after the date of this
Indenture and held by the Company or a Restricted Subsidiary as of the date of
determination, 25% of Consolidated Net Tangible Assets) and (iii) the Company
delivers an Officers' Certificate to the Trustee certifying that such Asset
Sale complies with clauses (i) and (ii).

                 (b)  The Net Available Cash from Asset Sales may (but need
not) be applied by the Company or a Restricted Subsidiary, to the extent the
Company or such Restricted Subsidiary elects (or is required by the terms of
any Senior Indebtedness), (A) to prepay, repay or purchase Senior Indebtedness
or Indebtedness (other than Redeemable Stock) of a Restricted Subsidiary (in
each case excluding Indebtedness owed to the Company or an Affiliate of the
Company); (B) to reinvest in Additional Assets (including by means of an
Investment in Additional Assets by a Restricted Subsidiary with Net Available
Cash received by the Company or another Restricted Subsidiary); or (C) to
purchase Securities (excluding Securities owned by the Company or an Affiliate
of the Company).

                 (c)  Any Net Available Cash from an Asset Sale not applied in
accordance with Section 4.06(b) within 360 days from the date of such Asset
Sale shall constitute "Excess Proceeds".  When the aggregate amount of Excess
Proceeds exceeds $10 million, the Company will be required to purchase
Securities tendered pursuant to an offer by the Company for Securities (the
"Prepayment Offer") at a purchase price of at least 100% of their principal
amount plus accrued and unpaid interest thereon (if any) to the Purchase Date
(as defined below) in accordance with the procedures (including prorating in
the event of over- subscription) set forth in Section 4.06(d).  To the extent
that any portion of the amount of Net Available Cash remains after compliance
with the preceding sentence and provided that all Holders have been given the
opportunity to tender their Securities for repurchase in accordance with the
provisions of Section 4.06(d), the Company or such Restricted Subsidiary may
use such remaining amount for general corporate purposes and the amount of
Excess Proceeds will be reset to zero.

                 (d) (1)  Promptly, and in any event within 10 days after the
Company becomes obligated to make a Prepayment

<PAGE>   48
                                                                              41


Offer, the Company shall deliver to the Trustee and send, by first-class mail,
to each Holder a written notice stating that the Holder may elect to have his
Securities purchased by the Company, either in whole or in part (subject to
prorationing as hereinafter described in the event the Offer is oversubscribed)
and in integral multiples of $1,000 of principal amount, at the applicable
purchase price.  The notice shall specify a purchase date not less than 30 days
nor more than 60 days after the date of such notice (the "Purchase Date") and
shall contain information concerning the business of the Company which the
Company in good faith believes will enable such Holders to make an informed
decision (which at a minimum will include (i) the most recently filed Annual
Report on Form 10-K (including audited consolidated financial statements) of
the Company, the most recent subsequently filed Quarterly Report on Form 10-Q
and any Current Report on Form 8-K of the Company filed subsequent to such
Quarterly Report, other than Current Reports describing Asset Sales otherwise
described in the offering materials, (ii) a description of material
developments, if any, in the Company's business subsequent to the date of the
latest of such Reports, and (iii) if material, appropriate pro forma financial
information) and all instructions and materials necessary to tender Securities
pursuant to the Offer, together with the information contained in clause (3)
below.

                 (2)  Not later than the date upon which written notice of
Prepayment Offer is delivered to the Trustee as provided below, the Company
shall deliver to the Trustee an Officers' Certificate as to (i) the amount of
the Prepayment Offer (the "Offer Amount"), (ii) the allocation of the Net
Available Cash from the Asset Sales pursuant to which such Offer is being made
and (iii) the compliance of such allocation with the provisions of Section
4.06.  Prior to the expiration of the period in which the Prepayment Offer
remains open (the "Offer Period"), the Company shall also irrevocably deposit
with the Trustee or with a paying agent (or, if the Company is acting as its
own paying agent, segregate and hold in trust) in Temporary Cash Investments an
amount equal to the Offer Amount to be held for payment in accordance with the
provisions of this Section.  Upon the expiration of the Offer Period, the
Company shall deliver to the Trustee the Securities or portions thereof which
have been properly tendered to and are to be accepted by the Company.  The
Trustee shall, on the Purchase Date, mail or deliver payment to each tendering
Holder in the amount of the purchase price.  In the event that the aggregate
pur-

<PAGE>   49
                                                                              42


chase price of the Securities delivered by the Company to the Trustee is less
than the Offer Amount, the Trustee shall deliver the excess to the Company
immediately after the expiration of the Offer Period.

                 (3)  Holders electing to have a Security purchased will be
required to surrender the Security, with an appropriate form duly completed, to
the Company at the address specified in the notice at least five Business Days
prior to the Purchase Date.  Holders will be entitled to withdraw their
election if the Trustee or the Company receives, not later than three Business
Days prior to the Purchase Date, a telegram, telex, facsimile transmission or
letter setting forth the name of the Holder, the principal amount of the
Security which was delivered for purchase by the Holder and a statement that
such Holder is withdrawing his election to have such Security purchased.  If at
the expiration of the Offer Period the aggregate principal amount of Securities
surrendered by Holders exceeds the Offer Amount, the Company shall select the
Securities to be purchased on a pro rata basis (with such adjustments as may be
deemed appropriate by the Company so that only Securities in denominations of
$1,000, or integral multiples thereof, shall be purchased).  Holders whose
Securities are purchased only in part will be issued new Securities equal in
principal amount to the unpurchased portion of the Securities surrendered.

                 (4)  At the time the Company delivers Securities to the
Trustee which are to be accepted for purchase, the Company will also deliver an
Officers' Certificate stating that such Securities are to be accepted by the
Company pursuant to and in accordance with the terms of this Section.  A
Security shall be deemed to have been accepted for purchase at the time the
Trustee, directly or through an agent, mails or delivers payment therefor to
the surrendering Holder.

                 (e)  The Company shall comply, to the extent applicable, with
the requirements of Section 14(e) of the Exchange Act and any other securities
laws or regulations  in connection with the repurchase of Securities pursuant
to this Section.  To the extent that the provisions of any securities laws or
regulations conflict with provisions of this Section, the Company shall comply
with the applicable securities laws and regulations and shall not be deemed to
have breached its obligations under this Section by virtue thereof.

<PAGE>   50
                                                                              43


                 (f)  In connection with any prepayment, repayment or purchase
of Indebtedness pursuant to clause (A) or (C) of Section 4.06(b) or a
Prepayment Offer pursuant to Section 4.06(c), the Company or such Restricted
Subsidiary will permanently retire such Indebtedness and, if the Indebtedness
permanently retired constitutes Indebtedness under a Bank Credit Facility, then
the amount of Indebtedness permitted under clause (c) of Section 4.03 shall
thereafter be deemed to have been permanently reduced by the amount of such
retirement; provided, however, that notwithstanding any permanent retirement of
Indebtedness under a Bank Credit Facility in accordance with this provision,
the related loan commitment (if any) need not be reduced and the Company may
continue to Incur Indebtedness pursuant to such commitment to the extent
permitted under clause (c) of Section 4.03 (as so reduced) and/or under any
other clause of Section 4.03.  Pending application of Net Available Cash
pursuant to this Section 4.06, such Net Available Cash will be invested in
Permitted Short Term Investments or will be applied temporarily to reduce
amounts outstanding under one or more revolving credit facilities of the
Company or its Restricted Subsidiaries.

                 SECTION 4.07.  Transactions with Affiliates.  (a)  The Company
will not, and will not permit any of its Restricted Subsidiaries to, directly
or indirectly, conduct any business or enter into any transaction or series of
transactions (including, but not limited to, the sale, transfer, disposition,
purchase, exchange or lease of Property, the making of any Investment, the
giving of any Guarantee or the rendering of any service) with or for the
benefit of any Affiliate of the Company, unless (i) an Officer will have
determined, in his good faith judgment, that such transaction or series of
transactions is in the best interest of the Company or such Restricted
Subsidiary, and on terms no less favorable to the Company or such Restricted
Subsidiary than those that could be obtained in a comparable arm's-length
transaction with a Person that is not an Affiliate of the Company, and the
Company delivers an Officers' Certificate to the Trustee to that effect, (ii)
with respect to a transaction or series of transactions involving aggregate
payments by the Company or such Restricted Subsidiary having a Fair Market
Value equal to or in excess of $10 million, the Board of Directors of the
Company (including a majority of the disinterested Directors) approves such
transaction or series of transactions and determines, in its good faith
judgment, that such transaction or series of transactions complies

<PAGE>   51
                                                                              44


with the standards set forth in clause (i) of this paragraph, and the Company
delivers a certified resolution to the Trustee to that effect and (iii) with
respect to a transaction or series of transactions involving aggregate payments
by the Company or such Restricted Subsidiary having a Fair Market Value equal
to or in excess of $25 million, the Company receives the written opinion of a
nationally recognized investment banking firm or other nationally recognized
expert having sufficient expertise to the effect that such transaction (or
series of transactions) is fair to the Company from a financial point of view,
which opinion shall be delivered promptly to the Trustee.  With respect to any
capital contribution to, or transaction with, a Subsidiary, the requirement
that a transaction be on "terms no less favorable to the Company or such
Restricted Subsidiary than those that could be obtained in a comparable arm's
length transaction with a Person that is not an Affiliate of the Company" shall
be satisfied if such transaction is fair, from a financial point of view, to
the Company.

                 (b)  The limitations of paragraph (a) of this Section 4.07
shall not apply to (i) transactions with Affiliates in accordance with the
terms of agreements as in effect on the date of this Indenture (and not
otherwise in violation of this Indenture); provided that any renewal or
modification of the terms of any such agreement after the date of this
Indenture shall comply with paragraph (a) of this Section 4.07, or (ii)
transactions with Restricted Subsidiaries.  The requirements of clause (iii) of
paragraph (a) of this Section 4.07 shall not apply (i) to a transaction that
constitutes a Permitted Business Investment if none of the parties to such
transaction (other than the Company, the Restricted Subsidiary (if any) making
such Permitted Business Investment, other Restricted Subsidiaries of the
Company and the entity (if any) receiving such Permitted Business Investment)
(x) are Affiliates of the Company or (y) were during the preceding 12 months,
or are expected during the following 12 months to be, associated with more than
10% of the net oil and gas production of the Company and its Subsidiaries
(whether by reason of purchases of oil and gas or any kind of shared or
cooperative production agreements) or (ii) to additional sales of or
commitments to sell to Hadson Corporation natural gas on terms no less
favorable to the Company than those obtained as of the date of this Indenture
pursuant to the Gas Marketing Agreement, dated as of December 14, 1993, among

<PAGE>   52
                                                                              45


the Company, Santa Fe Energy Operating Partners, L.P. and Adobe Gas Pipeline
Company.

                 SECTION 4.08.  Mandatory Repurchase upon Change of Control and
Subsequent Rating Decline.  (a)  Upon the occurrence of a Change of Control and
a subsequent Rating Decline, the Company will, in accordance with the terms
contemplated in Section 4.08(b), notify each Holder, with a copy of such notice
to the Trustee, in writing of the occurrence of the Change of Control and
accompanying such notice will be an offer to purchase the Securities at a
purchase price equal to 101% of the principal amount thereof, plus any accrued
and unpaid interest, if any, due thereon to the date of purchase.

                 (b)  Within 30 days following any such Rating Decline, the
Company shall send, by first-class mail to each Holder, a notice to each Holder
with a copy to the Trustee stating:

                 (1) that a Change of Control and Rating Decline has occurred
         and that such Holder has the right to require the Company to purchase
         such Holder's Securities at a purchase price in cash equal to 101% of
         the principal amount thereof plus accrued and unpaid interest, if any,
         to the date of purchase;

                 (2) the circumstances and relevant facts regarding such Change
         of Control and subsequent Rating Decline which the Company in good
         faith believes will enable Holders to make an informed decision (which
         at a minimum will include (i) the most recently filed Annual Report on
         Form 10-K (including audited financial statements) of the Company, the
         most recent subsequently filed Quarterly Report on Form 10-Q and any
         Current Report on Form 8-K of the Company filed subsequent to such
         Quarterly Report, (ii) a description of material business developments
         in the Company's business subsequent to the date of the latest of such
         Reports, and (iii) information with respect to pro forma historical
         income, cash flow and capitalization, each after giving effect to such
         Change of Control, events causing such Change of Control and the date
         such Change of Control is deemed to have occurred);

                 (3) the purchase date (which shall be no earlier than 30 days
         nor later than 60 days from the date such notice is mailed); and

<PAGE>   53
                                                                              46



                 (4) the instructions determined by the Company, consistent
         with this Section, that a Holder must follow in order to have its
         Securities purchased, together with the information contained in
         Section 4.08(c) (and including any related materials).

                 (c)  On or prior to the date upon which payment is to be made,
the Company shall irrevocably deposit with the Trustee or with a paying agent
(or, if the Company is acting as its own paying agent, segregate and hold in
trust) in Temporary Cash Investments an amount equal to the purchase price plus
accrued and unpaid interest, if any, payable to the Holders entitled thereto,
to be held for payment in accordance with the provisions of this Section.
Holders electing to have a Security purchased will be required to surrender the
Security, with an appropriate form duly completed, to the Company at the
address specified in the notice at least five Business Days prior to the
purchase date.  Holders will be entitled to withdraw their election if the
Trustee or the Company receives not later than three Business Days prior to the
purchase date, a telegram, telex, facsimile transmission or letter setting
forth the name of the Holder, the principal amount of the Security which was
delivered for purchase by the Holder and a statement that such Holder is
withdrawing his election to have such Security purchased.

                 (d)  On the purchase date, the Company shall deliver to the
Trustee the Securities or portions thereof which have been properly tendered to
and are to be accepted by the Company.  The Trustee shall, on the purchase
date, mail or deliver payment to each tendering Holder of the purchase price.
In the event that the aggregate purchase price of the Securities delivered by
the Company to the Trustee is less than the amount deposited with the Trustee,
the Trustee shall deliver the excess to the Company immediately after the
payment date.

                 (e)  The Company shall comply, to the extent applicable, with
the requirements of Section 14(e) of the Exchange Act and any other securities
laws or regulations  in connection with the repurchase of Securities pursuant
to this Section.  To the extent that the provisions of any securities laws or
regulations conflict with provisions of this Section, the Company shall comply
with the applicable securities laws and regulations and shall not be deemed to
have breached its obligations under this Section by virtue thereof.

<PAGE>   54
                                                                              47



                 SECTION 4.09.  Compliance Certificate.  The Company shall
deliver to the Trustee within 120 days after the end of each fiscal year of the
Company an Officers' Certificate stating that in the course of the performance
by the signers of their duties as Officers of the Company they would normally
have knowledge of any Default and whether or not the signers know of any
Default that occurred during such period.  If they do, the certificate shall
describe the Default, its status and what action the Company is taking or
proposes to take with respect thereto.  The Company also shall comply with TIA
Section  314(a)(4).

                 SECTION 4.10.  Further Instruments and Acts.  Upon request of
the Trustee, the Company will execute and deliver such further instruments and
do such further acts as may be reasonably necessary or proper to carry out more
effectively the purpose of this Indenture.

                 SECTION 4.11.  Limitation on Liens.  The Company will not,
directly or indirectly, Incur any Lien on or with respect to any Property of
the Company or any interest therein or any income or profits therefrom, unless
the Securities are secured equally and ratably with (or prior to) any and all
other obligations secured by such Lien, except that the Company may without
restriction Incur Liens securing Senior Indebtedness and except for:  (a) any
Lien existing on any Property of a Person at the time such Person is merged or
consolidated with or into the Company (and not Incurred in anticipation of such
transaction), provided that such Liens are not extended to other Property of
the Company; (b) any Lien existing on any Property at the time of the
acquisition thereof (and not Incurred in anticipation of such transaction); (c)
any Lien incidental to the normal conduct of the business of the Company or the
ownership of its property or the conduct in the ordinary course of its business
(including without limitation (i) easements, rights of way and similar
encumbrances, (ii) rights of lessees or lessors under leases, (iii) rights of
collecting banks having rights of setoff, revocation, refund or chargeback with
respect to money or instruments of the Company on deposit with or in the
possession of such banks, (iv) Liens imposed by law, including without
limitation mechanics', carriers', warehousemen's, materialmen's, suppliers' and
vendors' Liens, (v) Oil and Gas Liens, and (iv) Liens incurred to secure
performance of bids, tenders, contracts (other than contracts for the payment
or repayment of money), statutory or regulatory requirements, performance or
return- of-money bonds, surety bonds or other obligations of

<PAGE>   55
                                                                              48


a like nature and incurred in a manner consistent with industry practice) in
each case which are not Incurred in connection with the borrowing of money, the
obtaining of advances or credit (other than the extension of credit represented
by such bond or other instrument) or the payment of the deferred purchase price
of Property and which do not in the aggregate impair in any material respect
the use of Property in the operation of the business of the Company and its
Restricted Subsidiaries taken as a whole; (d) Liens for taxes not yet due or
which are being contested in good faith by appropriate proceedings, so long as
reserves have been established to the extent required by GAAP; (e) Liens
existing as of the date of this Indenture; and (f) Liens to secure any
permitted extension, renewal, refinancing, refunding or exchange (or successive
extensions, renewals, refinancings, refundings or exchanges), in whole or in
part, of or for any Indebtedness secured by Liens referred to in clauses (a)
through (e) of this Section 4.11, provided that such Liens do not extend to any
other Property and the principal amount of the Indebtedness secured by such
Liens is not increased.

                 SECTION 4.12.  Restricted and Unrestricted Subsidiaries.  The
Board of Directors of the Company may designate any Subsidiary of the Company
or any Restricted Subsidiary to be an Unrestricted Subsidiary if (i) the
Subsidiary to be so designated does not own any Capital Stock, Redeemable Stock
or Indebtedness of, or own or hold any Lien on any property of, the Company or
any other Restricted Subsidiary of the Company, (ii) the Subsidiary to be so
designated is not obligated by any Indebtedness or Lien that, if in default,
would result (with the passage of time or notice or otherwise) in a default on
any Indebtedness of the Company or any Restricted Subsidiary, and (iii) either
(A) the Subsidiary to be so designated has total assets of $1,000 or less, or
(B) such designation is effective immediately upon such Person becoming a
Subsidiary of the Company or of a Restricted Subsidiary.  Unless so designated
as an Unrestricted Subsidiary, any Person that becomes a Subsidiary of the
Company or any Restricted Subsidiary will be classified as a Restricted
Subsidiary.  Except as provided in the first sentence of this Section 4.12, no
Restricted Subsidiary may be redesignated as an Unrestricted Subsidiary.  An
Unrestricted Subsidiary may not be redesignated as a Restricted Subsidiary.
Any such designation by the Board of Directors of the Company will be evidenced
to the Trustee by promptly filing with the Trustee a copy of the resolution of
such Board giving effect

<PAGE>   56
                                                                              49


to such designation and an Officers' Certificate certifying that such
designation complies with the foregoing provisions.

                 SECTION 4.13.  Limitation on Issuance and Sale of Capital
Stock of Restricted Subsidiaries.  The Company will not (a) permit any
Restricted Subsidiary to issue any Capital Stock or Redeemable Stock other than
to the Company or one of its Restricted Subsidiaries; provided, however, that
any subsequent issuance or transfer of any Capital Stock that results in any
such Restricted Subsidiary ceasing to be a Restricted Subsidiary or any
subsequent transfer of any such Capital Stock (except to the Company or any
Restricted Subsidiary) will, in each case, be deemed for purposes of this
Indenture to constitute the issuance of such Capital Stock by the issuer
thereof or (b) permit any Person (other than the Company or a Restricted
Subsidiary) to own any Capital Stock of a Restricted Subsidiary (other than
directors' qualifying shares); provided, however, that clauses (a) and (b) will
not prohibit a sale of 100% of the Capital Stock of a Restricted Subsidiary
owned by the Company or a Restricted Subsidiary effected in accordance with
Section 4.06.

                 SECTION 4.14.  Incurrence of Layered Indebtedness.  The
Company will not Incur any Indebtedness which is subordinate or junior in right
of payment to any Senior Indebtedness unless such Indebtedness constitutes
Indebtedness that is junior to, or pari passu with, the Securities in right of
payment.


                                   ARTICLE 5

                               SUCCESSOR COMPANY

                 SECTION 5.01.  Merger, Consolidation and Sale of Assets.  The
Company will not merge or consolidate with or into any other entity (other than
a merger or consolidation of a Restricted Subsidiary into the Company) or sell,
transfer, assign, lease, convey or otherwise dispose of all or substantially
all of its Property to any Person, unless (a) the entity formed by or surviving
any such consolidation or merger (if the Company is a party to the transaction
and is not the surviving entity) or to which such sale, transfer or conveyance
is made (the "Surviving Entity") shall be an entity organized and existing
under the laws of the United States of America or a State thereof or the
District of

<PAGE>   57
                                                                              50


Columbia and such Surviving Entity expressly assumes, by supplemental indenture
satisfactory to the Trustee, executed and delivered to the Trustee by such
Surviving Entity, the due and punctual payment of the principal of, premium, if
any, and interest on all the Securities, according to their tenor, and the due
and punctual performance and observance of all of the covenants and conditions
of this Indenture to be performed by the Company; (b) immediately before and
after giving effect to such transaction or series of transactions, no Default
or Event of Default shall have occurred and be continuing; (c) immediately
after giving effect to such transaction or series of transactions on a pro
forma basis (including, without limitation, any Indebtedness incurred or
anticipated to be incurred in connection with such transaction or series of
transactions), the Company or the Surviving Entity, as the case may be, would
be able to Incur at least $1.00 of additional Indebtedness under clause (a) of
Section 4.03 and (d) immediately after giving effect to such transaction or
series of transactions on a pro forma basis (including, without limitation, any
Indebtedness incurred or anticipated to be incurred in connection with such
transaction or series of transactions), the Company or the Surviving Entity
shall have a Consolidated Net Worth equal to or greater than the Consolidated
Net Worth of the Company immediately prior to the transaction or series of
transactions.

                 SECTION 5.02.  Successor Entity Substituted.  Upon any
consolidation or merger, or any sale, assignment, transfer, lease, conveyance
or other disposition of the assets of the Company as an entirety or virtually
as an entirety in accordance with Section 5.01, the successor entity formed by
such consolidation or into which the Company is merged or to which such sale,
assignment, transfer, lease, conveyance or other disposition is made shall
succeed to, and be substituted for, and may exercise every right and power of,
the Company under this Indenture with the same effect as if such successor
entity had been named as the Company herein.

<PAGE>   58
                                                                              51


                                   ARTICLE 6

                             DEFAULTS AND REMEDIES


                 SECTION 6.01.  Events of Default.  An "Event of Default"
occurs if:

                 (1) the Company fails to make any payment of interest on any
         Security when the same becomes due and payable, whether or not such
         payment shall be prohibited by Article 10, and such failure continues
         for a period of 30 days;

                 (2) the Company (i) fails to make any payment of the principal
         of (or premium, if any, on) any Security when the same becomes due and
         payable at its Stated Maturity, upon redemption, upon declaration or
         otherwise, whether or not such payment shall be prohibited by Article
         10 or (ii) fails to redeem or purchase Securities when required
         pursuant to this Indenture or the Securities, whether or not such
         redemption or purchase shall be prohibited by Article 10;

                 (3) the Company fails to comply with any of its agreements in
         the Securities or this Indenture (other than those referred to in (1)
         or (2) above) and such failure continues for 60 days after the notice
         specified below, or the Company fails to give the notice specified
         below;

                 (4) Indebtedness of the Company or any Restricted Subsidiary
         is not paid within any applicable grace period after final maturity or
         is accelerated by the holders thereof, the total amount of such
         Indebtedness unpaid or accelerated exceeds $25,000,000 or its Dollar
         Equivalent at the time and such default or acceleration continues for
         10 days after the notice specified below;

<PAGE>   59
                                                                              52



                 (5) any final judgment or order is entered against the Company
         or any Restricted Subsidiary in an uninsured or effectively
         unindemnified aggregate amount in excess of $25,000,000 or its Dollar
         Equivalent and is not discharged and there is a period of 60 days
         following the entry of such judgment or decree during which such
         judgment or decree is not discharged, waived or the execution thereof
         stayed;

                 (6) the Company or any Restricted Subsidiary pursuant to or
         within the meaning of any Bankruptcy Law:

                          (A) commences a voluntary case;

                          (B) consents to the entry of an order for relief
                 against it in an involuntary case;

                          (C) consents to the appointment of a Custodian of it
                 or for any substantial part of its property; or

                          (D) makes a general assignment for the benefit of its
                 creditors;

         or takes any comparable action under any foreign laws relating to
         insolvency; or

                 (7) a court of competent jurisdiction enters an order or 
         decree under any Bankruptcy Law that:

                          (A) is for relief against the Company or any
                 Restricted Subsidiary in an involuntary case;

                          (B) appoints a Custodian of the Company or any
                 Restricted Subsidiary or for any substantial part of its
                 property; or

                          (C) orders the winding up or liquidation of the
                 Company or any Restricted Subsidiary;

         or any similar relief is granted under any foreign laws and the order
         or decree remains unstayed and in effect for 60 days.

                 The foregoing will constitute Events of Default whatever the
reason for any such Event of Default and whether it is voluntary or involuntary
or is effected by

<PAGE>   60
                                                                              53


operation of law or pursuant to any judgment, decree or order of any court or
any order, rule or regulation of any administrative or governmental body.

                 The term "Bankruptcy Law" means Title 11, United States Code,
or any similar Federal or state law for the relief of debtors.  The term
"Custodian" means any receiver, trustee, assignee, liquidator, custodian or
similar official under any Bankruptcy Law.

                 The Company shall deliver to the Trustee, within 30 days after
the occurrence thereof, written notice in the form of an Officers' Certificate
of any event which with the giving of notice and the lapse of time would become
an Event of Default under clause (3), (4), or (5), its status and what action
the Company is taking or proposes to take with respect thereto.

                 SECTION 6.02.  Acceleration.  If an Event of Default (other
than an Event of Default specified in Section 6.01(6) or (7) with respect to
the Company) occurs and is continuing, the Trustee by notice to the Company, or
the Holders of at least 25% in principal amount of the Securities by notice to
the Company and the Trustee, may declare the principal of and accrued interest
on all the Securities to be due and payable on the fifth day after written
notice of such declaration has been delivered to the Representative for each
issue of Designated Senior Indebtedness.  Upon such a declaration, such
principal and interest shall be due and payable immediately.  If an Event of
Default specified in Section 6.01(6) or (7) with respect to the Company occurs,
the principal of and interest on all the Securities shall ipso facto become and
be immediately due and payable without any declaration or other act on the part
of the Trustee or any Securityholders.  The Holders of a majority in principal
amount of the Securities by notice to the Trustee may rescind an acceleration
and its consequences if the rescission would not conflict with any judgment or
decree and if all existing Events of Default have been cured or waived except
nonpayment of principal or interest that has become due solely because of
acceleration.  No such rescission shall affect any subsequent Default or impair
any right consequent thereto.

                 SECTION 6.03.  Other Remedies.  If an Event of Default occurs
and is continuing, the Trustee may pursue any available remedy to collect the
payment of principal of or

<PAGE>   61
                                                                              54


interest on the Securities or to enforce the performance of any provision of
the Securities or this Indenture.

                 The Trustee may maintain a proceeding even if it does not
possess any of the Securities or does not produce any of them in the
proceeding.  A delay or omission by the Trustee or any Securityholder in
exercising any right or remedy accruing upon an Event of Default shall not
impair the right or remedy or constitute a waiver of or acquiescence in the
Event of Default.  No remedy is exclusive of any other remedy.  All available
remedies are cumulative.

                 SECTION 6.04.  Waiver of Past Defaults.  The Holders of a
majority in principal amount of the Securities by notice to the Trustee may
waive an existing Default and its consequences except (i) a Default in the
payment of the principal of or interest on a Security or (ii) a Default in
respect of a provision that under Section 9.02 cannot be amended without the
consent of each Securityholder affected.  When a Default is waived, it is
deemed cured, but no such waiver shall extend to any subsequent or other
Default or impair any consequent right.

                 SECTION 6.05.  Control by Majority.  The Holders of a majority
in principal amount of the Securities may direct the time, method and place of
conducting any proceeding for any remedy available to the Trustee or of
exercising any trust or power conferred on the Trustee.  However, the Trustee
may refuse to follow any direction that conflicts with law or this Indenture
or, subject to Section 7.01, that the Trustee determines is unduly prejudicial
to the rights of other Securityholders or would involve the Trustee in personal
liability; provided, however, that the Trustee may take any other action deemed
proper by the Trustee that is not inconsistent with such direction.  Prior to
taking any action hereunder, the Trustee shall be entitled to indemnification
satisfactory to it in its sole discretion against all losses and expenses
caused by taking or not taking such action.

                 SECTION 6.06.  Limitation on Suits.  A Securityholder may not
pursue any remedy with respect to this Indenture or the Securities unless:

                 (1) the Holder gives to the Trustee written notice stating
         that an Event of Default is continuing;

<PAGE>   62
                                                                              55


                 (2) the Holders of at least 25% in principal amount of the
         Securities make a written request to the Trustee to pursue the remedy;

                 (3) such Holder or Holders offer to the Trustee reasonable
         security or indemnity against any loss, liability or expense;

                 (4) the Trustee does not comply with the request within 60
         days after receipt of the request and the offer of security or
         indemnity; and

                 (5) the Holders of a majority in principal amount of the
         Securities do not give the Trustee a direction inconsistent with the
         request during such 60-day period.

                 A Securityholder may not use this Indenture to prejudice the
rights of another Securityholder or to obtain a preference or priority over
another Securityholder.

                 SECTION 6.07.  Rights of Holders To Receive Payment.
Notwithstanding any other provision of this Indenture, the right of any Holder
to receive payment of principal of and interest on the Securities held by such
Holder, on or after the respective due dates expressed in the Securities, or to
bring suit for the enforcement of any such payment on or after such respective
dates, shall not be impaired or affected without the consent of such Holder.

                 SECTION 6.08.  Collection Suit by Trustee.  If an Event of
Default in payment of interest or principal specified in Section 6.01(1) or (2)
occurs and is continuing, the Trustee may recover judgment in its own name and
as trustee of an express trust against the Company for the whole amount of
principal and interest remaining unpaid (together with interest on such unpaid
interest to the extent lawful) and the amounts provided for in Section 7.07.

                 SECTION 6.09.  Trustee May File Proofs of Claim.  The Trustee
may file such proofs of claim and other papers or documents as may be necessary
or advisable in order to have the claims of the Trustee and the Securityholders
allowed in any judicial proceedings relative to the Company, its creditors or
its property and, unless prohibited by law or applicable regulations, may vote
on behalf of the Holders in any election of a trustee in bankruptcy or other
Person performing similar functions, and any Custodian in any such

<PAGE>   63
                                                                              56


judicial proceeding is hereby authorized by each Holder to make payments to the
Trustee and, in the event that the Trustee shall consent to the making of such
payments directly to the Holders, to pay to the Trustee any amount due it for
the reasonable compensation, expenses, disbursements and advances of the
Trustee, its agents and its counsel, and any other amounts due the Trustee
under Section 7.07.  NOTHING HEREIN CONTAINED SHALL BE DEEMED TO AUTHORIZE THE
TRUSTEE TO AUTHORIZE OR CONSENT TO OR ACCEPT OR ADOPT ON BEHALF OF ANY
SECURITYHOLDER ANY PLAN OF REORGANIZATION, ARRANGEMENT, ADJUSTMENT OR
COMPOSITION AFFECTING THE SECURITIES OR THE RIGHTS OF ANY HOLDER THEREOF, OR TO
AUTHORIZE THE TRUSTEE TO VOTE IN RESPECT OF THE CLAIM OF ANY SECURITYHOLDER IN
ANY SUCH PROCEEDING.

                 SECTION 6.10.  Priorities.  If the Trustee collects any money
or property pursuant to this Article 6, it shall pay out the money or property
in the following order:

                 FIRST:  to the Trustee for amounts due under Section 7.07;

                 SECOND:  to holders of Senior Indebtedness to the extent
         required by Article 10;

                 THIRD:  to Securityholders for amounts due and unpaid on the
         Securities for principal and interest, ratably, without preference or
         priority of any kind, according to the amounts due and payable on the
         Securities for principal and interest, respectively; and

                 FOURTH:  to the Company.

                 The Trustee may fix a record date and payment date for any
payment to Securityholders pursuant to this Section.  At least 5 days before
such record date, the Company shall mail to each Securityholder and the Trustee
a notice that states the record date, the payment date and amount to be paid.

                 SECTION 6.11.  Undertaking for Costs.  In any suit for the
enforcement of any right or remedy under this Indenture or in any suit against
the Trustee for any action taken or omitted by it as Trustee, a court in its
discretion may require the filing by any party litigant in the suit of an
undertaking to pay the costs of the suit, and the court in its discretion may
assess reasonable costs, including reasonable attorneys' fees, against any
party litigant in the

<PAGE>   64
                                                                              57


suit, having due regard to the merits and good faith of the claims or defenses
made by the party litigant.  This Section does not apply to a suit by the
Trustee, a suit by a Holder pursuant to Section 6.07 or a suit by Holders of
more than 10% in principal amount of the Securities.

                 SECTION 6.12.  Waiver of Stay or Extension Laws.  The Company
covenants (to the extent it may lawfully do so) that it shall not at any time
insist upon, or plead, or in any manner whatsoever claim or take the benefit
or advantage of, any stay or extension law wherever enacted, now or at any time
hereafter in force, which may affect the covenants or the performance of this
Indenture; and the Company (to the extent that it may lawfully do so) hereby
expressly waives all benefit or advantage of any such law, and shall not
hinder, delay or impede the execution of any power herein granted to the
Trustee, but shall suffer and permit the execution of every such power as
though no such law had been enacted.


                                   ARTICLE 7

                                    TRUSTEE

                 SECTION 7.01.  Duties of Trustee.  (a)  If an Event of Default
has occurred and is continuing, the Trustee shall exercise the rights and
powers vested in it by this Indenture and use the same degree of care and skill
in their exercise as a prudent person would exercise or use under the
circumstances in the conduct of such person's own affairs.

                 (b)  Except during the continuance of an Event of Default:
(1) the Trustee undertakes to perform such duties and only such duties as are
specifically set forth in this Indenture and no implied covenants or
obligations shall be read into this Indenture against the Trustee; and (2) in
the absence of bad faith on its part, the Trustee may conclusively rely, as to
the truth of the statements and the correctness of the opinions expressed
therein, upon certificates or opinions furnished to the Trustee and conforming
to the requirements of this Indenture.  However, the Trustee shall examine the
certificates and opinions to determine whether or not they conform to the
requirements of this Indenture.

<PAGE>   65
                                                                              58




                 (c)  The Trustee may not be relieved from liability for its
own negligent action, its own negligent failure to act or its own wilful
misconduct, except that:  (1) this paragraph does not limit the effect of
paragraph (b) of this Section; (2) the Trustee shall not be liable for any
error of judgment made in good faith by a Trust Officer unless it is proved
that the Trustee was negligent in ascertaining the pertinent facts; and (3) the
Trustee shall not be liable with respect to any action it takes or omits to
take in good faith in accordance with a direction received by it pursuant to
Section 6.05.

                 (d)  Every provision of this Indenture that in any way relates
to the Trustee is subject to paragraphs (a), (b) and (c) of this Section.

                 (e)  The Trustee shall not be liable for interest on any money
received by it except as the Trustee may agree in writing with the Company.

                 (f)  Money held in trust by the Trustee need not be segregated
from other funds except to the extent required by law.

                 (g)  No provision of this Indenture shall require the Trustee
to expend or risk its own funds or otherwise incur financial liability in the
performance of any of its duties hereunder or in the exercise of any of its
rights or powers, if it shall have reasonable grounds to believe that repayment
of such funds or adequate indemnity against such risk or liability is not
reasonably assured to it.

                 (h)  Every provision of this Indenture relating to the conduct
or affecting the liability of or affording protection to the Trustee shall be
subject to the provisions of this Section and to the provisions of the TIA.

                 SECTION 7.02.  Rights of Trustee.  (a)  The Trustee may rely
on any document believed by it to be genuine and to have been signed or
presented by the proper person.  The Trustee need not investigate any fact or
matter stated in the document.

                 (b)  Before the Trustee acts or refrains from acting, it may
require an Officers' Certificate or an Opinion of Counsel.  The Trustee shall
not be liable for any action it takes or omits to take in good faith in
reliance on the Officers' Certificate or Opinion of Counsel.

<PAGE>   66
                                                                              59


                 (c)  The Trustee may act through agents and shall not be
responsible for the misconduct or negligence of any agent appointed with due
care.

                 (d)  The Trustee shall not be liable for any action it takes
or omits to take in good faith which it believes to be authorized or within its
rights or powers; provided, however, that the Trustee's conduct does not
constitute wilful misconduct or negligence.

                 (e)  The Trustee may consult with counsel, and the advice or
opinion of counsel with respect to legal matters relating to this Indenture and
the Securities shall be full and complete authorization and protection from
liability in respect to any action taken, omitted or suffered by it hereunder
in good faith and in accordance with the advice or opinion of such counsel.

                 SECTION 7.03.  Individual Rights of Trustee.  The Trustee in
its individual or any other capacity may become the owner or pledgee of
Securities and may otherwise deal with the Company or its Affiliates with the
same rights it would have if it were not Trustee.  Any Paying Agent, Registrar,
co-registrar or co-paying agent may do the same with like rights.  However, the
Trustee must comply with Sections 7.10 and 7.11.

                 SECTION 7.04.  Trustee's Disclaimer.  The Trustee shall not be
responsible for and makes no representation as to the validity or adequacy of
this Indenture or the Securities, it shall not be accountable for the Company's
use of the proceeds from the Securities, and it shall not be responsible for
any statement of the Company in this Indenture or in any document issued in
connection with the sale of the Securities or in the Securities other than the
Trustee's certificate of authentication.

                 SECTION 7.05.  Notice of Defaults.  If a Default occurs and is
continuing and if it is known to the Trustee, the Trustee shall mail to each
Securityholder notice of the Default within 90 days after it occurs.  Except in
the case of a Default in payment of principal of or interest on any Security
(including payments pursuant to the mandatory redemption provisions of such
Security, if any), the Trustee may withhold the notice if and so long as a
committee of its Trust Officers in good faith determines that withholding the
notice is in the interests of Securityholders.

<PAGE>   67
                                                                              60


                 SECTION 7.06.  Reports by Trustee to Holders.  As promptly as
practicable after each May 15 beginning with the May 15 following the date of
this Indenture, and in any event prior to July 15 in each year, the Trustee
shall mail to each Securityholder a brief report dated as of May 15 that
complies with TIA Section  313(a), but only if such report is required in any
year under TIA Section  313(a).  The Trustee also shall comply with TIA Section
313(b).

                 A copy of each report at the time of its mailing to
Securityholders shall be filed with the SEC and each stock exchange (if any) on
which the Securities are listed.  The Company agrees to notify promptly the
Trustee whenever the Securities become listed on any stock exchange and of any
delisting thereof.

                 SECTION 7.07.  Compensation and Indemnity.  The Company shall
pay to the Trustee from time to time reasonable compensation for its services.
The Trustee's compensation shall not be limited by any law on compensation of a
trustee of an express trust.  The Company shall reimburse the Trustee upon
request for all reasonable out-of-pocket expenses incurred or made by it,
including costs of collection, in addition to the compensation for its
services.  Such expenses shall include the reasonable compensation and
expenses, disbursements and advances of the Trustee's agents, counsel,
accountants and experts.  The Company shall indemnify the Trustee against any
and all loss, liability or expense (including reasonable attorneys' fees)
incurred by it in connection with the administration of this trust and the
performance of its duties hereunder.  The Trustee shall notify the Company
promptly of any claim for which it may seek indemnity.  Unless the position of
the Company is prejudiced by such failure, failure by the Trustee to so notify
the Company shall not relieve the Company of its obligations hereunder.  The
Company shall defend the claim and the Trustee may have separate counsel and
the Trustee shall cooperate in the defense.  The Company shall pay the fees and
expenses of such counsel.  The Company need not reimburse any expense or
indemnify against any loss, liability or expense incurred by the Trustee
through the Trustee's own wilful misconduct, negligence or bad faith.

                 To secure the Company's payment obligations in this Section,
the Trustee shall have a Lien prior to the Securities on all money or property
held or collected by the Trustee other than money or property held in trust to
pay

<PAGE>   68
                                                                              61


principal of and interest on Securities under Article 8 or otherwise.

                 The Company's payment obligations pursuant to this Section
shall survive the discharge of this Indenture.  When the Trustee incurs
expenses after the occurrence of a Default specified in Section 6.01(6) or (7)
with respect to the Company, the expenses are intended to constitute expenses
of administration under Bankruptcy Law.

                 SECTION 7.08.  Replacement of Trustee.  The Trustee may resign
at any time by so notifying the Company.  The Holders of a majority in
principal amount of the Securities may remove the Trustee by so notifying the
Trustee and may appoint a successor Trustee.  The Company shall remove the
Trustee if:

                 (1) the Trustee fails to comply with Section 7.10;

                 (2) the Trustee is adjudged bankrupt or insolvent;

                 (3) a receiver or other public officer takes charge of the
                     Trustee or its property; or

                 (4) the Trustee otherwise becomes incapable of acting.

                 If the Trustee resigns, is removed by the Company or by the
Holders of a majority in principal amount of the Securities and such Holders do
not reasonably promptly appoint a successor Trustee, or if a vacancy exists in
the office of Trustee for any reason (the Trustee in such event being referred
to herein as the retiring Trustee), the Company shall promptly appoint a
successor Trustee.

                 A successor Trustee shall deliver a written acceptance of its
appointment to the retiring Trustee and to the Company.  Thereupon the
resignation or removal of the retiring Trustee shall become effective, and the
successor Trustee shall have all the rights, powers and duties of the Trustee
under this Indenture.  The successor Trustee shall mail a notice of its
succession to Securityholders.  The retiring Trustee shall promptly transfer
all property held by it as Trustee to the successor Trustee, subject to the
lien provided for in Section 7.07.

                 If a successor Trustee does not take office within 60 days
after the retiring Trustee resigns or is removed,

<PAGE>   69
                                                                              62


the retiring Trustee or the Holders of 25% in principal amount of the
Securities may petition any court of competent jurisdiction for the appointment
of a successor Trustee.

                 If the Trustee fails to comply with Section 7.10, any
Securityholder may petition any court of competent jurisdiction for the removal
of the Trustee and the appointment of a successor Trustee.

                 Notwithstanding the replacement of the Trustee pursuant to
this Section, the Company's obligations under Section 7.07 shall continue for
the benefit of the retiring Trustee.

                 SECTION 7.09.  Successor Trustee by Merger.  If the Trustee
consolidates with, merges or converts into, or transfers all or substantially
all its corporate trust business or assets to, another corporation or banking
association, the resulting, surviving or transferee corporation or banking
association without any further act shall be the successor Trustee; provided
such corporation or association shall be otherwise eligible and qualified under
this Article.

                 In case at the time such successor or successors by merger,
conversion or consolidation to the Trustee shall succeed to the trusts created
by this Indenture any of the Securities shall have been authenticated but not
delivered, any such successor to the Trustee may adopt the certificate of
authentication of any predecessor trustee, and deliver such Securities so
authenticated; and in case at that time any of the Securities shall not have
been authenticated, any successor to the Trustee may authenticate such
Securities either in the name of any predecessor hereunder or in the name of
the successor to the Trustee; and in all such cases such certificates shall
have the full force which it is anywhere in the Securities or in this Indenture
provided that the certificate of the Trustee shall have.

                 SECTION 7.10.  Eligibility; Disqualification.  The Trustee
shall at all times satisfy the requirements of TIA Section  310(a).  The
Trustee shall have a combined capital and surplus of at least $100,000,000 as
set forth in its most recent published annual report of condition.  The Trustee
shall comply with TIA Section  310(b); provided, however, that there shall be
excluded from the operation of TIA Section  310(b)(1) any indenture or
indentures under which other securities or certificates of interest or

<PAGE>   70
                                                                              63


participation in other securities of the Company are outstanding if the
 requirements for such exclusion set forth in TIA Section 310(b)(1) are met.

                 SECTION 7.11.  Preferential Collection of Claims Against
 Company.  The Trustee shall comply with TIA Section 311(a), excluding any
 creditor relationship listed in TIA Section  311(b).  A Trustee who has
 resigned or been removed shall be
subject to TIA Section  311(a) to the extent indicated.


                                   ARTICLE 8

                       DISCHARGE OF INDENTURE; DEFEASANCE

                 SECTION 8.01.  Discharge of Liability on Securities;
Defeasance.  (a)  When (i) the Company delivers to the Trustee all outstanding
Securities (other than Securities replaced pursuant to Section 2.07) for
cancellation or (ii) all outstanding Securities have become due and payable,
whether at maturity or as a result of the mailing of a notice of redemption
pursuant to Article 3 hereof and the Company irrevocably deposits with the
Trustee funds sufficient to pay at maturity or upon redemption all outstanding
Securities, including interest thereon (other than Securities replaced pursuant
to Section 2.07), and if in either case the Company pays all other sums payable
hereunder by the Company, then this Indenture shall, subject to Sections
8.01(c) and 8.06, cease to be of further effect.  The Trustee shall acknowledge
satisfaction and discharge of this Indenture on demand of the Company
accompanied by an Officers' Certificate and an Opinion of Counsel and at the
cost and expense of the Company.

                 (b)  Subject to Sections 8.01(c), 8.02 and 8.06, the Company
at any time may terminate (i) all its obligations under the Securities and this
Indenture ("legal defeasance option") or (ii) its obligations under Sections
4.03 through 4.14 and clauses (c) and (d) of Section 5.01 and the related
operation of Section 6.01(3) and the operation of Sections 6.01(4), 6.01(5),
6.01(6) and 6.01(7) ("covenant defeasance option").  The Company may exercise
its legal defeasance option notwithstanding its prior exercise of its covenant
defeasance option.

                 If the Company exercises its legal defeasance option, payment
of the Securities may not be accelerated because of an Event of Default.  If
the Company exercises

<PAGE>   71
                                                                              64


its covenant defeasance option, payment of the Securities may not be
accelerated because of an Event of Default specified in Sections 6.01(3)
through (7) (except to the extent covenants or agreements referenced in such
Sections remain applicable).

                 Upon satisfaction of the conditions set forth herein and upon
request of the Company, the Trustee shall acknowledge in writing the discharge
of those obligations that the Company terminates.

                 (c)  Notwithstanding clauses (a) and (b) above, the Company's
obligations in Sections 2.03, 2.04, 2.05, 2.06, 2.07, 7.07, 7.08, 8.04, 8.05
and 8.06 shall survive until the Securities have been paid in full.
Thereafter, the Company's obligations in Sections 7.07, 8.04 and 8.05 shall
survive.

                 SECTION 8.02.  Conditions to Defeasance.  The Company may
exercise its legal defeasance option or its covenant defeasance option only if:

                 (1) the Company irrevocably deposits in trust with  the
         Trustee money or U.S. Government Obligations for the payment of
         principal and interest on the Securities to maturity or redemption, as
         the case may be;

                 (2) the Company delivers to the Trustee a certificate from a
         nationally recognized firm of independent accountants expressing their
         opinion that the payments of principal and interest when due and
         without reinvestment on the deposited U.S. Government Obligations plus
         any deposited money without investment will provide cash at such times
         and in such amounts as will be sufficient to pay principal and
         interest when due on all the Securities to maturity or redemption, as
         the case may be;

                 (3) 123 days pass after the deposit is made and during the
         123-day period no Default specified in Section 6.01(6) or (7) with
         respect to the Company occurs;

                 (4) no Default has occurred and is continuing on the date of
         such deposit and after giving effect thereto;

<PAGE>   72
                                                                              65


                 (5) the deposit does not constitute a default under any other
         agreement binding on the Company and is not prohibited by Article 10;

                 (6) the Company delivers to the Trustee an Opinion of Counsel
         to the effect that the trust resulting from the deposit does not
         constitute, or is qualified as, a regulated investment company under
         the Investment Company Act of 1940;

                 (7) in the case of the legal defeasance option, the Company
         shall have delivered to the Trustee an Opinion of Counsel stating that
         (i) the Company has received from the Internal Revenue Service a
         ruling, or (ii) since the date of this Indenture there has been a
         change in the applicable Federal income tax law, in either case to the
         effect that, and based thereon such Opinion of Counsel shall confirm
         that, the Securityholders will not recognize income, gain or loss for
         Federal income tax purposes as a result of such defeasance and will be
         subject to Federal income tax on the same amounts, in the same manner
         and at the same times as would have been the case if such defeasance
         had not occurred;

                 (8) in the case of the covenant defeasance option, the Company
         shall have delivered to the Trustee an Opinion of Counsel to the
         effect that the Securityholders will not recognize income, gain or
         loss for Federal income tax purposes as a result of such covenant
         defeasance and will be subject to Federal income tax on the same
         amounts, in the same manner and at the same times as would have been
         the case if such covenant defeasance had not occurred; and

                 (9) the Company delivers to the Trustee an Officers'
         Certificate and an Opinion of Counsel, each stating that all
         conditions precedent to the defeasance and discharge of the Securities
         as contemplated by this Article 8 have been complied with.

                 Before or after a deposit, the Company may make arrangements
satisfactory to the Trustee for the redemption of Securities at a future date
in accordance with Article 3.

                 SECTION 8.03.  Application of Trust Money.  The Trustee shall
hold in trust money or U.S. Government Obligations deposited with it pursuant
to this Article 8.  It

<PAGE>   73
                                                                              66


shall apply the deposited money and the money from U.S. Government Obligations
through the Paying Agent and in accordance with this Indenture to the payment
of principal of and interest on the Securities.  Money and securities so held
in trust are not subject to Article 10.

                 SECTION 8.04.  Repayment to Company.  The Trustee and the
Paying Agent shall promptly turn over to the Company upon request any excess
money or securities held by them at any time.

                 Subject to any applicable abandoned property law, the Trustee
and the Paying Agent shall pay to the Company upon request any money held by
them for the payment of principal or interest that remains unclaimed for two
years, and, thereafter, Securityholders entitled to the money must look to the
Company for payment as general creditors.

                 SECTION 8.05.  Indemnity for Government Obligations.  The
Company shall pay and shall indemnify the Trustee against any tax, fee or other
charge imposed on or assessed against deposited U.S. Government Obligations or
the principal and interest received on such U.S. Government Obligations.

                 SECTION 8.06.  Reinstatement.  If the Trustee or Paying Agent
is unable to apply any money or U.S. Government Obligations in accordance with
this Article 8 by reason of any legal proceeding or by reason of any order or
judgment of any court or governmental authority enjoining, restraining or
otherwise prohibiting such application, the Company's obligations under this
Indenture and the Securities shall be revived and reinstated as though no
deposit had occurred pursuant to this Article 8 until such time as the Trustee
or Paying Agent is permitted to apply all such money or U.S. Government
Obligations in accordance with this Article 8.

<PAGE>   74
                                                                              67


                                   ARTICLE 9

                                   AMENDMENTS

                 SECTION 9.01.  Without Consent of Holders.  The Company and
the Trustee may amend this Indenture or the Securities without notice to or
consent of any Securityholder:

                 (1) to cure any ambiguity, omission, defect or inconsistency;

                 (2) to comply with Article 5;

                 (3) to provide for uncertificated Securities in addition to or
         in place of certificated Securities; provided, however, that the
         uncertificated Securities are issued in registered form for purposes
         of Section 163(f) of the Code or in a manner such that the
         uncertificated Securities are described in Section 163(f)(2)(B) of the
         Code;

                 (4) to make any change in Article 10 that would limit or
         terminate the benefits available to any holder of Senior Indebtedness
         (or Representatives therefor) under Article 10;

                 (5) to add guarantees with respect to the Securities or to
         secure the Securities;

                 (6) to add to the covenants of the Company for the benefit of
         the Holders or to surrender any right or power herein conferred upon
         the Company;

                 (7) to comply with any requirements of the SEC in connection
         with qualifying this Indenture under the TIA; or

                 (8) to make any change that does not adversely affect the
         rights of any Securityholder.

                 An amendment under this Section may not make any change that
adversely affects the rights under Article 10 of any holder of Senior
Indebtedness then outstanding unless the holders of such Senior Indebtedness
(or any group or representative thereof authorized to give a consent) consent
to such change.

<PAGE>   75
                                                                              68


                 After an amendment under this Section becomes effective, the
Company shall mail to Securityholders a notice briefly describing such
amendment.  The failure to give such notice to all Securityholders, or any
defect therein, shall not impair or affect the validity of an amendment under
this Section.

                 SECTION 9.02.  With Consent of Holders.  The Company and the
Trustee may amend this Indenture or the Securities without notice to any
Securityholder but with the written consent (including consents obtained in
connection with a tender offer or exchange offer for Securities or a
solicitation of consents in respect of Securities) of the Holders of at least a
majority in principal amount of the Securities.  The Holders of a majority in
principal amount of the then outstanding Securities may waive compliance in a
particular instance by the Company with any provision of this Indenture or the
Securities (including waivers obtained in connection with a tender offer or
exchange offer for Securities or a solicitation of consents in respect of
Securities).  However, without the consent of each Securityholder affected, an
amendment or waiver may not:

                 (1) reduce the amount of Securities whose Holders must consent
         to an amendment, supplement or waiver of any provision of this
         Indenture or the Securities;

                 (2) reduce the rate of or extend the time for payment of
         interest on any Security;

                 (3) reduce the principal of or extend the Stated Maturity of
         any Security;

                 (4) reduce the premium payable upon the redemption of any
         Security or change the time at which any Security may be redeemed in
         accordance with Article 3;

                 (5) make any Security payable in money other than that stated
         in the Security;

                 (6) make any change in Article 10 that adversely affects the
         rights of any Securityholder under Article 10;

                 (7) make any change in Section 6.04 or 6.07 or the second or
         third sentence of this Section; or

<PAGE>   76
                                                                              69


                 (8) release any security that may have been granted in
         accordance with this Indenture in respect of the Securities.

                 It shall not be necessary for the consent of the Holders under
this Section to approve the particular form of any proposed amendment, but it
shall be sufficient if such consent approves the substance thereof.

                 An amendment under this Section may not make any change that
adversely affects the rights under Article 10 of any holder of Senior
Indebtedness then outstanding unless the holders of such Senior Indebtedness
(or any group or representative thereof authorized to give a consent) consent
to such change.

                 After an amendment under this Section becomes effective, the
Company shall mail to Securityholders a notice briefly describing such
amendment.  The failure to give such notice to all Securityholders, or any
defect therein, shall not impair or affect the validity of an amendment under
this Section.

                 SECTION 9.03.  Compliance with Trust Indenture Act.  Every
amendment or supplement to this Indenture or the Securities shall comply with
the TIA as then in effect.

                 SECTION 9.04.  Revocation and Effect of Consents and Waivers.
A consent to an amendment or a waiver by a Holder of a Security shall bind the
Holder and every subsequent Holder of that Security or portion of the Security
that evidences the same debt as the consenting Holder's Security, even if
notation of the consent or waiver is not made on the Security.  However, any
such Holder or subsequent Holder may revoke the consent or waiver as to such
Holder's Security or portion of the Security if the Trustee receives the notice
of revocation before the date the amendment or waiver becomes effective.  After
an amendment or waiver becomes effective, it shall bind every Securityholder.

                 The Company may, but shall not be obligated to, fix a record
date for the purpose of determining the Securityholders entitled to give their
consent or take any other action described above or required or permitted to be
taken pursuant to this Indenture.  If a record date is fixed, then
notwithstanding the immediately preceding paragraph, those Persons who were
Securityholders at such

<PAGE>   77
                                                                              70


record date (or their duly designated proxies), and only those Persons, shall
be entitled to give such consent or to revoke any consent previously given or
to take any such action, whether or not such Persons continue to be Holders
after such record date.  No such consent shall be valid or effective for more
than 120 days after such record date unless consent from the Holders of the
principal amount of Securities required hereunder for such amendment or waiver
to be effective shall have been given and not revoked within such 120-day
period.

                 SECTION 9.05.  Notation on or Exchange of Securities.  If an
amendment, supplement or waiver changes the terms of a Security, the Trustee
may require the Holder of the Security to deliver it to the Trustee.  The
Trustee may place an appropriate notation on the Security regarding the changed
terms and return it to the Holder.  Alternatively, if the Company or the
Trustee so determines, the Company in exchange for the Security shall issue and
the Trustee shall authenticate a new Security that reflects the changed terms.
Failure to make the appropriate notation or to issue a new Security shall not
affect the validity of such amendment.

                 SECTION 9.06.  Trustee To Sign Amendments.  The Trustee shall
sign any amendment, supplement or waiver authorized pursuant to this Article 9
if the amendment, supplement or waiver does not adversely affect the rights,
duties, liabilities or immunities of the Trustee.  If it does, the Trustee may
but need not sign it.  In signing such amendment, supplement or waiver the
Trustee shall be entitled to receive indemnity reasonably satisfactory to it
and to receive, and (subject to Section 7.01) shall be fully protected in
relying upon, an Officers' Certificate and an Opinion of Counsel stating that
such (i) amendment, supplement or waiver is authorized or permitted by this
Indenture and that all conditions precedent to the execution, delivery and
performance of such amendment, supplement or waiver have been satisfied; (ii)
the Company has all necessary corporate power and authority to execute and
deliver the amendment and that the execution, delivery and performance of such
amendment has been duly authorized by all necessary corporate action of the
Company; (iii) the execution, delivery and performance of the amendment,
supplement or waiver do not result in the breach or violation of or constitute
a default under any of the terms, conditions or provisions of (a) the
Indenture, (b) the Certificate of Incorporation or By-Laws of the Company, (c)
any law or regulation applicable to the Company, (d) any

<PAGE>   78
                                                                              71


material order, writ, injunction or decree of any court or governmental
instrumentality applicable to the Company or (e) any material agreement or
instrument to which the Company is subject; (iv) such amendment, supplement or
waiver has been duly and validly executed and delivered by the Company, and the
Indenture together with such amendment, supplement or waiver constitutes a
legal, valid and binding obligation of the Company enforceable against the
Company in accordance with its terms, except as such enforceability may be
limited by applicable bankruptcy, insolvency or similar laws affecting the
enforcement of creditors' rights generally and general equitable principles;
and (v) the Indenture together with such amendment, supplement or waiver
complies with the TIA.

                 SECTION 9.07.  Payment for Consent.  Neither the Company nor
any Affiliate of the Company shall, directly or indirectly, pay or cause to be
paid any consideration, whether by way of interest, fee or otherwise, to any
Holder for or as an inducement to any consent, waiver or amendment of any of
the terms or provisions of this Indenture or the Securities unless such
consideration is offered to be paid to all Holders that so consent, waive or
agree to amend in the time frame set forth in solicitation documents relating
to such consent, waiver or agreement.


                                   ARTICLE 10

                                 SUBORDINATION

                 SECTION 10.01.  Agreement To Subordinate.  Each Securityholder
by accepting a Security agrees that the Indebtedness evidenced by the
Securities is subordinated in right of payment, to the extent and in the manner
provided in this Article 10, to the prior payment when due in cash of all
Senior Indebtedness and that the subordination is for the benefit of and
enforceable by the holders of Senior Indebtedness.  The Securities shall in all
respects rank pari passu with all other Senior Subordinated Indebtedness of the
Company and only Indebtedness of the Company which is Senior Indebtedness shall
rank senior to the Securities in accordance with the provisions set forth
herein.  All provisions of this Article 10 shall be subject to Section 10.12.

                 SECTION 10.02.  Liquidation, Dissolution, Bankruptcy.  Upon
any payment or distribution of the assets of

<PAGE>   79
                                                                              72


the Company to creditors upon a total or partial liquidation or a total or
partial dissolution of the Company or in a bankruptcy, reorganization,
insolvency, receivership or similar proceeding relating to the Company or its
property:

                 (1) holders of Senior Indebtedness shall be entitled to
         receive payment in full in cash of the Senior Indebtedness (including
         interest (if any) accruing on or after the commencement of a
         proceeding in bankruptcy) before Securityholders shall be entitled to
         receive any payment of principal of or interest on the Securities; and

                 (2) until the Senior Indebtedness is paid in full in cash, any
         distribution to which Securityholders would be entitled but for this
         Article 10 shall be made to holders of Senior Indebtedness as their
         interests may appear, except that Securityholders may receive shares
         of stock and any debt securities that are subordinated to Senior
         Indebtedness to at least the same extent as the Securities.

                 SECTION 10.03.  Default on Senior Indebtedness.  The Company
may not pay the principal of or interest on the Securities or make any deposit
pursuant to Section 8.01 and may not repurchase, redeem or otherwise retire any
Securities (collectively, "pay the Securities") if (i) any principal, premium
or interest, in respect of Senior Indebtedness is due and payable and is not
paid within any applicable grace period (including at maturity) or (ii) any
other default on Senior Indebtedness occurs and the maturity of such Senior
Indebtedness is accelerated in accordance with its terms unless, in either
case, (x) the default has been cured or waived and any such acceleration has
been rescinded or (y) such Senior Indebtedness has been paid in full in cash;
provided, however, that the Company may pay the Securities without regard to
the foregoing if the Company and the Trustee receive written notice approving
such payment from the Representatives of the Designated Senior Indebtedness.
During the continuance of any default (other than a default described in clause
(i) or (ii) of the preceding sentence) with respect to any Senior Indebtedness
pursuant to which the maturity thereof may be accelerated immediately without
further notice (except such notice as may be required to effect such
acceleration), the Company may not pay the Securities for a period (a "Payment
Blockage Period") commencing upon the receipt by the Company and the Trustee of
written notice of such default from the Represen

<PAGE>   80
                                                                              73


tative of any Designated Senior Indebtedness specifying an election to effect a
Payment Blockage Period (a "Blockage Notice") and ending 179 days thereafter
(or earlier if such Payment Blockage Period is terminated (i) by written notice
to the Trustee and the Company from the Person or Persons who gave such
Blockage Notice, (ii) by repayment in full in cash of the Senior Indebtedness
in respect of which such Blockage Notice was given or (iii) because the default
giving rise to such Blockage Notice is no longer continuing).  Notwithstanding
the provisions described in the immediately preceding sentence, unless the
holders of such Senior Indebtedness or the Representative of such holders shall
have accelerated the maturity of such Senior Indebtedness and not rescinded
such acceleration, the Company may (unless otherwise prohibited pursuant to the
first sentence of this Section) resume payments on the Securities after such
Payment Blockage Period.  Not more than one Blockage Notice may be given in any
consecutive 360-day period, irrespective of the number of defaults with respect
to any number of issues of Senior Indebtedness during such period.

                 SECTION 10.04.  Acceleration of Payment of Securities.  If
payment of the Securities is accelerated because of an Event of Default, the
Company or the Trustee shall promptly notify the holders of the Designated
Senior Indebtedness (or their Representatives) of such acceleration.

                 SECTION 10.05.  When Distribution Must Be Paid Over.  If a
distribution is made to Securityholders that because of this Article 10 should
not have been made to them, the Securityholders who receive the distribution
shall hold it in trust for holders of Senior Indebtedness and pay it over to
them as their interests may appear.

                 SECTION 10.06.  Subrogation.  After all Senior Indebtedness is
paid in full and until the Securities are paid in full, Securityholders shall
be subrogated to the rights of holders of Senior Indebtedness to receive
distributions applicable to Senior Indebtedness.  A distribution made under
this Article 10 to holders of Senior Indebtedness which otherwise would have
been made to Securityholders is not, as between the Company and
Securityholders, a payment by the Company on Senior Indebtedness.

<PAGE>   81
                                                                              74


                 SECTION 10.07.  Relative Rights.  This Article 10 defines the
relative rights of Securityholders and holders of Senior Indebtedness.  Nothing
in this Indenture shall:

                 (1) impair, as between the Company and the Securityholders,
         the obligation of the Company, which is absolute and unconditional, to
         pay principal of and interest on the Securities in accordance with
         their terms; or

                 (2) prevent the Trustee or any Securityholder from exercising
         its available remedies upon a Default, subject to the rights of
         holders of Senior Indebtedness to receive distributions otherwise
         payable to Securityholders.

                 SECTION 10.08.  Subordination May Not Be Impaired by Company.
No right of any holder of Senior Indebtedness to enforce the subordination of
the Indebtedness evidenced by the Securities shall be impaired by any act or
failure to act by the Company or by its failure to comply with this Indenture.

                 SECTION 10.09.  Rights of Trustee and Paying Agent.
Notwithstanding Section 10.03, the Trustee or Paying Agent may continue to make
payments on the Securities and shall not be charged with knowledge of the
existence of facts that would prohibit the making of any such payments unless,
not less than two Business Days prior to the date of such payment, a Trust
Officer of the Trustee receives notice satisfactory to it that payments may not
be made under this Article 10.  The Company, the Registrar or co- registrar,
the Paying Agent, a Representative or a holder of Senior Indebtedness may give
the notice; provided, however, that, if an issue of Senior Indebtedness has a
Representative, only the Representative may give the notice.

                 The Trustee in its individual or any other capacity may hold
Senior Indebtedness with the same rights it would have if it were not Trustee.
The Registrar and co-registrar and the Paying Agent may do the same with like
rights.  The Trustee shall be entitled to all the rights set forth in this
Article 10 with respect to any Senior Indebtedness which may at any time be
held by it, to the same extent as any other holder of Senior Indebtedness; and
nothing in Article 7 shall deprive the Trustee of any of its rights as such
holder.  Nothing in this Article 10 shall

<PAGE>   82
                                                                              75


apply to claims of, or payments to, the Trustee under or pursuant to Section
7.07.

                 SECTION 10.10.  Distribution or Notice to Representative.
Whenever a distribution is to be made or a notice given to holders of Senior
Indebtedness, the distribution may be made and the notice given to their
Representative (if any).

                 SECTION 10.11.  Article 10 Not To Prevent Events of Default or
Limit Right To Accelerate.  The failure to make a payment pursuant to the
Securities by reason of any provision in this Article 10 shall not be construed
as preventing the occurrence of a Default.  Nothing in this Article 10 shall
have any effect on the right of the Securityholders or the Trustee to
accelerate the maturity of the Securities.

                 SECTION 10.12.  Trust Moneys Not Subordinated.
Notwithstanding anything contained herein to the contrary, payments from money
or the proceeds of U.S. Government Obligations held in trust under Article 8 by
the Trustee for the payment of principal of and interest on the Securities
shall not be subordinated to the prior payment of any Senior Indebtedness or
subject to the restrictions set forth in this Article 10, and none of the
Securityholders shall be obligated to pay over any such amount to the Company
or any holder of Senior Indebtedness of the Company or any other creditor of
the Company.

                 SECTION 10.13.  Trustee Entitled To Rely.  Upon any payment or
distribution pursuant to this Article 10, the Trustee and the Securityholders
shall be entitled to rely (i) upon any order or decree of a court of competent
jurisdiction in which any proceedings of the nature referred to in Section
10.02 are pending, (ii) upon a certificate of the liquidating trustee or agent
or other Person making such payment or distribution to the Trustee or to the
Securityholders or (iii) upon the Representatives for the holders of Senior
Indebtedness for the purpose of ascertaining the Persons entitled to
participate in such payment or distribution, the holders of the Senior
Indebtedness and other Indebtedness of the Company, the amount thereof or
payable thereon, the amount or amounts paid or distributed thereon and all
other facts pertinent thereto or to this Article 10.  In the event that the
Trustee determines, in good faith, that evidence is required with respect to
the right of any Person as a holder of Senior Indebtedness to

<PAGE>   83
                                                                              76


participate in any payment or distribution pursuant to this Article 10, the
Trustee may request such Person to furnish evidence to the reasonable
satisfaction of the Trustee as to the amount of Senior Indebtedness held by
such Person, the extent to which such Person is entitled to participate in such
payment or distribution and other facts pertinent to the rights of such Person
under this Article 10, and, if such evidence is not furnished, the Trustee may
defer any payment to such Person pending judicial determination as to the right
of such Person to receive such payment.  The provisions of Sections 7.01 and
7.02 shall be applicable to all actions or omissions of actions by the Trustee
pursuant to this Article 10.

                 SECTION 10.14.  Trustee To Effectuate Subordination.  Each
Securityholder by accepting a Security authorizes and directs the Trustee on
his behalf to take such action as may be necessary or appropriate to
acknowledge or effectuate the subordination between the Securityholders and the
holders of Senior Indebtedness as provided in this Article 10 and appoints the
Trustee as attorney-in-fact for any and all such purposes.

                 SECTION 10.15.  Trustee Not Fiduciary for Holders of Senior
Indebtedness.  The Trustee shall not be deemed to owe any fiduciary duty to the
holders of Senior Indebtedness and shall not be liable to any such holders if
it shall mistakenly pay over or distribute to Securityholders or the Company or
any other Person, money or assets to which any holders of Senior Indebtedness
shall be entitled by virtue of this Article 10 or otherwise.

                 SECTION 10.16.  Reliance by Holders of Senior Indebtedness on
Subordination Provisions.  Each Securityholder by accepting a Security
acknowledges and agrees that the foregoing subordination provisions are, and
are intended to be, an inducement and a consideration to each holder of any
Senior Indebtedness, whether such Senior Indebtedness was created or acquired
before or after the issuance of the Securities, to acquire and hold, or to
continue to hold, such Senior Indebtedness and such holder of Senior
Indebtedness shall be deemed conclusively to have relied on such subordination
provisions in acquiring and continuing to hold, or in continuing to hold, such
Senior Indebtedness.

<PAGE>   84
                                                                              77


                                   ARTICLE 11

                                 MISCELLANEOUS

                 SECTION 11.01.  Trust Indenture Act Controls.  If and to the
extent that any provision of this Indenture limits, qualifies or conflicts with
the duties imposed by, or with another provision (an "incorporated provision")
included in this Indenture by operation of, Sections 310 to 318, inclusive, of
the TIA, such imposed duties or incorporated provision shall control.

                 SECTION 11.02.  Notices.  Any notice or communication shall be
in writing and delivered in person or mailed by first-class mail addressed as
follows:

                                  if to the Company:

                 Santa Fe Energy Resources, Inc.
                 1616 South Voss Road, Suite 1000
                 Houston, TX 77057

                          Attention of General Counsel


                 If to the Trustee for purposes of Article II hereof:

                 The First National Bank of Boston
                 c/o BancBoston Trust Company of New York
                 55 Broadway--3rd Floor
                 New York, NY 10006

                 If to the Trustee for all other notices and communications
hereunder:

                 The First National Bank of Boston
                 150 Royall Street
                 Mail Stop 45-02-15
                 Canton, MA 02021

                          Attention of Corporate Trust Division

                 The Company or the Trustee by notice to the other may
designate additional or different addresses for subsequent notices or
communications.

<PAGE>   85
                                                                              78


                 Any notice or communication mailed to a Securityholder shall
be mailed to the Securityholder at the Securityholder's address as it appears
on the registration books of the Registrar and shall be sufficiently given if
so mailed within the time prescribed.

                 Failure to mail a notice or communication to a Securityholder
or any defect in it shall not affect its sufficiency with respect to other
Securityholders.  If a notice or communication is mailed in the manner provided
above, it is duly given, whether or not the addressee receives it.

                 SECTION 11.03.  Communication by Holders with Other Holders.
Securityholders may communicate pursuant to TIA Section  312(b) with other
Securityholders with respect to their rights under this Indenture or the
Securities.  The Company, the Trustee, the Registrar and anyone else shall have
the protection of TIA Section  312(c).

                 SECTION 11.04.  Certificate and Opinion as to Conditions
Precedent.  Upon any request or application by the Company to the Trustee to
take or refrain from taking any action under this Indenture, the Company shall
furnish to the Trustee:

                 (1) an Officers' Certificate in form and substance reasonably
         satisfactory to the Trustee stating that, in the opinion of the
         signers, all conditions precedent, if any, provided for in this
         Indenture relating to the proposed action have been complied with; and

                 (2) an Opinion of Counsel in form and substance reasonably
         satisfactory to the Trustee stating that, in the opinion of such
         counsel, all such conditions precedent have been complied with.

                 SECTION 11.05.  Statements Required in Certificate or Opinion.
Each certificate or opinion with respect to compliance with a covenant or
condition provided for in this Indenture shall include:

                 (1) a statement that the individual making such certificate or
         opinion has read such covenant or condition;

                 (2) a brief statement as to the nature and scope of the
         examination or investigation upon which the

<PAGE>   86
                                                                              79


         statements or opinions contained in such certificate or opinion are
         based;

                 (3) a statement that, in the opinion of such individual, he
         has made such examination or investigation as is necessary to enable
         him to express an informed opinion as to whether or not such covenant
         or condition has been complied with; and

                 (4) a statement as to whether or not, in the opinion of such
         individual, such covenant or condition has been complied with.

                 SECTION 11.06.  Rules by Trustee, Paying Agent and Registrar.
The Trustee may make reasonable rules for action by or a meeting of
Securityholders.  The Registrar and the Paying Agent may make reasonable rules
for their functions.

                 SECTION 11.07.  Legal Holidays.  A "Legal Holiday" is a
Saturday, a Sunday or a day on which banking institutions are not required to
be open in the State of New York.  If a payment date is a Legal Holiday,
payment shall be made on the next succeeding day that is not a Legal Holiday,
and no interest shall accrue for the intervening period.  If a regular record
date is a Legal Holiday, the record date shall not be affected.

                 SECTION 11.08.  GOVERNING LAW.  THIS INDENTURE AND THE
SECURITIES SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF
THE STATE OF NEW YORK BUT WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF
CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER
JURISDICTION WOULD BE REQUIRED THEREBY.

                 SECTION 11.09.  No Recourse Against Others.  A director,
officer, employee or stockholder, as such, of the Company shall not have any
liability for any obligations of the Company under the Securities or this
Indenture or for any claim based on, in respect of or by reason of such
obligations or their creation.  By accepting a Security, each Securityholder
shall waive and release all such liability.  The waiver and release shall be
part of the consideration for the issue of the Securities.

                 SECTION 11.10.  Successors.  All agreements of the Company in
this Indenture and the Securities shall bind its successors.  All agreements of
the Trustee in this Indenture shall bind its successors.

<PAGE>   87
                                                                              80



                 SECTION 11.11.  Multiple Originals.  The parties may sign any
number of copies of this Indenture.  Each signed copy shall be an original, but
all of them together represent the same agreement.  One signed copy is enough
to prove this Indenture.

                 SECTION 11.12.  Table of Contents; Headings.  The table of
contents, cross-reference sheet and headings of the Articles and Sections of
this Indenture have been inserted for convenience of reference only, are not
intended to be considered a part hereof and shall not modify or restrict any of
the terms or provisions hereof.

                 SECTION 11.13.  Severability.  In case any provision in this
Indenture or in the Securities shall be invalid, illegal or unenforceable, the
validity, legality and enforceability of the remaining provisions shall not in
any way be affected or impaired thereby.

                 SECTION 11.14.  No Adverse Interpretation of Other Agreements.
This Indenture may not be used to interpret another indenture, loan or debt
agreement of the Company or any Subsidiary (other than the Securities).  Any
such indenture, loan or debt agreement may not be used to interpret this
Indenture.


                 IN WITNESS WHEREOF, the parties have caused this Indenture to
be duly executed as of the date first written above.


                                                        
                                       SANTA FE ENERGY RESOURCES, INC.

                                        by
                                           ----------------------------
                                           Name:
                                           Title:
                                           

                                       THE FIRST NATIONAL BANK OF BOSTON,

                                        by 
                                           ----------------------------
                                            Authorized Signatory
<PAGE>   88
                                                                 [Draft--5/9/94]
                                                                       EXHIBIT A

                           [FORM OF FACE OF SECURITY]

No.                                                    $

                 % Senior Subordinated Debenturess Due 2004


         Santa Fe Energy Resources, Inc., a Delaware corporation, promises to
pay to           , or registered assigns, the principal sum of
Dollars on                      2004.

         Interest Payment Dates:                        and
                   .

         Record Dates:                                 and
                   .

         Additional provisions of this Security are set forth on the other side
of this Security.


Dated:

                                      SANTA FE ENERGY RESOURCES, INC.,

                                      by
                                         -----------------------------
                                         President


                                         -----------------------------
                                         Secretary

TRUSTEE'S CERTIFICATE OF
     AUTHENTICATION

THE FIRST NATIONAL BANK OF
  BOSTON, as Trustee, certifies
  [Seal] that this is one of
  the Securities referred
  to in the Indenture.

  by
     ---------------------------
     Authorized Signatory
<PAGE>   89
                                                                          2


                       [FORM OF REVERSE SIDE OF SECURITY]


                    % Senior Subordinated Debenture Due 2004


1.  Interest

         Santa Fe Energy Resources, Inc., a Delaware corporation (such
corporation, and its successors and assigns under the Indenture hereinafter
referred to, being herein called the "Company"), promises to pay interest on
the principal amount of this Security at the rate per annum shown above.  The
Company will pay interest semiannually on                  and             of
each year.  Interest on the Securities will accrue from the most recent date to
which interest has been paid or, if no interest has been paid, from
.  Interest will be computed on the basis of a 360-day year of twelve 30-day
months.  The Company shall pay interest on overdue principal at the rate borne
by the Securities, and it shall pay interest on overdue installments of
interest at the same rate to the extent lawful.


2.  Method of Payment

         The Company will pay interest on the Securities (except defaulted
interest) to the Persons who are registered holders of Securities at the close
of business on the          or             next preceding the interest payment
date even if Securities are canceled after the record date and on or before the
interest payment date.  Holders must surrender Securities to a Paying Agent to
collect principal payments.  The Company will pay principal and interest in
money of the United States of America that at the time of payment is legal
tender for payment of public and private debts.  However, the Company may pay
principal and interest by check payable in such money.  It may mail an interest
check to a Holder's registered address.


3.  Paying Agent and Registrar

         Initially, the Trustee will act as Paying Agent and Registrar.  The
Company may appoint and change any Paying Agent, Registrar or co-registrar
without notice.  The
<PAGE>   90
                                                                               3


Company or any of its domestically incorporated Wholly Owned Subsidiaries may
act as Paying Agent, Registrar or co-registrar.


4.  Indenture

         The Company issued the Securities under an Indenture dated as of
, 1994 ("Indenture"), between the Company and the Trustee.  The terms of the
Securities include those stated in the Indenture and those made part of the
Indenture by reference to the Trust Indenture Act of 1939 (15 U.S.C. Section
Section  77aaa-77bbbb) as in effect on the date of the Indenture (the "Act").
Terms defined in the Indenture and not defined herein have the meanings
ascribed thereto in the Indenture.  The Securities are subject to all such
terms, and Securityholders are referred to the Indenture and the Act for a
statement of those terms.

         The Securities are general unsecured obligations of the Company
limited to $100,000,000 aggregate principal amount (subject to Section 2.07 of
the Indenture).  The Indenture imposes certain limitations on the Company and
the Restricted Subsidiaries, including the Incurrence of Indebtedness and
Liens, the payment of dividends on and retirements of the Capital Stock of the
Company and Restricted Subsidiaries and obligations junior to the Securities,
the making of Investments, the sale of assets and transactions with Affiliates.
In addition, the Indenture limits the ability of the Company and its Restricted
Subsidiaries to restrict distributions and dividends from Restricted
Subsidiaries.


5. Optional Redemption

         The Securities may not be redeemed prior to __________, 1999.  On and
after that date, the Company may redeem the Securities in whole at any time or
in part from time to time at the following redemption prices (expressed in
percentages of principal amount), plus accrued interest to the redemption date
(subject to the right of Holders of
<PAGE>   91
                                                                               4


record on the relevant record date to receive interest due on the related
interest payment date):

         if redeemed during the 12-month period beginning ___________,

             Period                              Percentage            
             ------                              ----------    
             1999  . . . . . . . . . . . . . .            %
             2000  . . . . . . . . . . . . . .            %
             2001  . . . . . . . . . . . . . .            %

and thereafter beginning              , 2002, at 100% of the principal amount
plus accrued and unpaid interest (if any) to the redemption date.


6.  Notice of Redemption

         Notice of redemption will be mailed at least 30 days but not more than
60 days before the redemption date to each Holder of Securities to be redeemed
at his registered address.  Securities in denominations larger than $1,000 may
be redeemed in part but only in whole multiples of $1,000.  If money sufficient
to pay the redemption price of and accrued interest on all Securities (or
portions thereof) to be redeemed on the redemption date is deposited with the
Paying Agent on or before the redemption date and certain other conditions are
satisfied, on and after such date interest ceases to accrue on such Securities
(or such portions thereof) called for redemption.


7.  Put Provisions

         Upon a Change of Control and subsequent Rating Decline, any Holder of
Securities will have the right, subject to certain conditions, to cause the
Company to repurchase all or any part of the Securities of such Holder at a
repurchase price equal to 101% of the principal amount of the Securities to be
repurchased plus accrued interest to the date of repurchase (subject to the
right of holders of record on the relevant record date to receive interest due
on the related interest payment date) as provided in, and subject to the terms
of, the Indenture.
<PAGE>   92
                                                                               5



8.  Subordination

         The Securities are subordinated in right of payment in the manner and
to the extent set forth in the Indenture to the prior payment in full in cash
of all Senior Indebtedness, as defined in the Indenture.  To the extent
provided in the Indenture, Senior Indebtedness must be paid in cash before the
Securities may be paid.  Each Securityholder by accepting a Security agrees to
the subordination provisions contained in the Indenture and authorizes the
Trustee to give effect to such provisions and appoints the Trustee as
attorney-in-fact for such purpose.  The Indenture also provides that, under
certain circumstances, the Company will be prohibited from making any payments
in respect of the Securities if the Company is in default on any Senior
Indebtedness.


9.  Denominations; Transfer; Exchange

         The Securities are in registered form without coupons in denominations
of $1,000 and whole multiples of $1,000.  A Holder may transfer or exchange
Securities in accordance with the Indenture.  The Registrar may require a
Holder, among other things, to furnish appropriate endorsements or transfer
documents and to pay any taxes and fees required by law or permitted by the
Indenture.  The Registrar need not register the transfer of or exchange any
Securities selected for redemption (except, in the case of a Security to be
redeemed in part, the portion of the Security not to be redeemed) or any
Securities for a period of 15 days before a selection of Securities to be
redeemed or 15 days before an interest payment date.


10.  Persons Deemed Owners

         The registered Holder of this Security may be treated as the owner of
it for all purposes.


11.  Unclaimed Money

         If money for the payment of principal or interest remains unclaimed
for two years, the Trustee or Paying Agent shall pay the money back to the
Company at its request unless an abandoned property law designates another
Person.
<PAGE>   93
                                                                               6


After any such payment, Holders entitled to the money must look only to the
Company and not to the Trustee for payment.


12.  Discharge and Defeasance

         Subject to certain conditions, the Company at any time may terminate
some or all of its obligations under the Securities and the Indenture if the
Company deposits with the Trustee money or U.S. Government Obligations for the
payment of principal and interest on the Securities to redemption or maturity,
as the case may be.


13.  Amendment, Waiver

         Subject to certain exceptions set forth in the Indenture, (i) the
Indenture or the Securities may be amended with the written consent of the
Holders of at least a majority in principal amount outstanding of the
Securities and (ii) any default or noncompliance with any provision may be
waived with the written consent of the Holders of a majority in principal
amount outstanding of the Securities.  Subject to certain exceptions set forth
in the Indenture, without the consent of any Securityholder, the Company and
the Trustee may amend the Indenture or the Securities to cure any ambiguity,
omission, defect or inconsistency, or to comply with Article 5 of the
Indenture, or to provide for uncertificated Securities in addition to or in
place of certificated Securities, or to add guarantees with respect to the
Securities or to secure the Securities, or to add additional covenants or
surrender rights and powers conferred on the Company, or to comply with any
request of the SEC in connection with qualifying the Indenture under the Act,
or to make certain changes in the subordination provisions, or to make any
change that does not adversely affect the rights of any Securityholder.


14.  Defaults and Remedies

         Under the Indenture, Events of Default include (i) default for 30 days
in payment of interest on the Securities; (ii) default in payment of principal
on the Securities at maturity, upon redemption pursuant to paragraph 5 of the
Securities, upon acceleration or otherwise, or failure by the Company to redeem
or purchase Securities when required; (iii) failure by the Company to comply
with
<PAGE>   94
                                                                               7


other agreements in the Indenture or the Securities, in certain cases subject
to notice and lapse of time; (iv) certain accelerations (including failure to
pay within any grace period after final maturity) of other Indebtedness of the
Company if the amount accelerated (or so unpaid) exceeds $25,000,000 and
continues for 10 days after the required notice to the Company; (v) certain
events of bankruptcy or insolvency with respect to the Company and any
Restricted Subsidiary; and (vi) certain judgments or decrees for the payment of
money in excess of $25,000,000.  If an Event of Default occurs and is
continuing, the Trustee or the Holders of at least 25% in principal amount of
the Securities may declare all the Securities to be due and payable five days
after written notice to the Representatives of each issue of Designated Senior
Indebtedness.  Certain events of bankruptcy or insolvency are Events of Default
which will result in the Securities being due and payable immediately upon the
occurrence of such Events of Default.

         Securityholders may not enforce the Indenture or the Securities except
as provided in the Indenture.  The Trustee may refuse to enforce the Indenture
or the Securities unless it receives reasonable indemnity or security.  Subject
to certain limitations, Holders of a majority in principal amount of the
Securities may direct the Trustee in its exercise of any trust or power.  The
Trustee may withhold from Securityholders notice of any continuing Default
(except a Default in payment of principal or interest) if it determines that
withholding notice is in the interest of the Holders.


15.  Trustee Dealings with the Company

         Subject to certain limitations imposed by the Act,  the Trustee under
the Indenture, in its individual or any other capacity, may become the owner or
pledgee of Securities and may otherwise deal with and collect obligations owed
to it by the Company or its Affiliates and may otherwise deal with the Company
or its Affiliates with the same rights it would have if it were not Trustee.


16.  No Recourse Against Others

         A director, officer, employee or stockholder, as such, of the Company
or the Trustee shall not have any
<PAGE>   95
                                                                               8


liability for any obligations of the Company under the Securities or the
Indenture or for any claim based on, in respect of or by reason of such
obligations or their creation.  By accepting a Security, each Securityholder
waives and releases all such liability.  The waiver and release are part of the
consideration for the issue of the Securities.


17.  Authentication

         This Security shall not be valid until an authorized signatory of the
Trustee (or an authenticating agent) manually signs the certificate of
authentication on the other side of this Security.


18.  Abbreviations

         Customary abbreviations may be used in the name of a Securityholder or
an assignee, such as TEN COM (=tenants in common), TEN ENT (=tenants by the
entireties), JT TEN (=joint tenants with rights of survivorship and not as
tenants in common), CUST (=custodian), and U/G/M/A (=Uniform Gift to Minors
Act).


19.  CUSIP Numbers

         Pursuant to a recommendation promulgated by the Committee on Uniform
Security Identification Procedures the Company has caused CUSIP numbers to be
printed on the Securities and has directed the Trustee to use CUSIP numbers in
notices of redemption as a convenience to Securityholders.  No representation
is made as to the accuracy of such numbers either as printed on the Securities
or as contained in any notice of redemption and reliance may be placed only on
the other identification numbers placed thereon.

         THE COMPANY WILL FURNISH TO ANY SECURITYHOLDER UPON WRITTEN REQUEST
AND WITHOUT CHARGE TO THE SECURITYHOLDER A COPY OF THE INDENTURE WHICH HAS IN
IT THE TEXT OF THIS SECURITY IN LARGER TYPE.  REQUESTS MAY BE MADE TO:


         ATTENTION OF

- ----------------------------------------------------------------------------
<PAGE>   96
                                                                               9


                                ASSIGNMENT FORM

To assign this Security, fill in the form below:

I or we assign and transfer this Security to


         (Print or type assignee's name, address and zip code)

         (Insert assignee's soc. sec. or tax I.D. No.)


and irrevocably appoint                           agent to transfer this
Security on the books of the Company.  The agent may substitute another to act
for him.


- ----------------------------------------------------------------

Date:                      Your Signature: 
     -----------------                    ----------------------

- ----------------------------------------------------------------

Sign exactly as your name appears on the other side of this Security.
<PAGE>   97
                                                                              10


                       OPTION OF HOLDER TO ELECT PURCHASE

        If you want to elect to have this Security purchased by the Company
pursuant to Section 4.06 or 4.08 of the Indenture, check the box:

                                                  [  ]

        If you want to elect to have only part of this Security purchased by
the Company pursuant to Section 4.06 or 4.08 of the Indenture, state the
amount: $


Date:                     Your Signature: 
      -------------------                ----------------------------------
                                         (Sign exactly as your name appears
                                         on the other side of the Security)


Signature Guarantee:
                     ------------------------------------------------------
                     (Signature must be guaranteed by a 
                     member firm of the New York Stock 
                     Exchange or a commercial bank or trust 
                     company)

<PAGE>   1

                     (Letterhead of Andrews & Kurth L.L.P.)

                                                                     EXHIBIT 5.1

                                  May 12, 1994




Board of Directors
Santa Fe Energy Resources, Inc.
1616 South Voss, Suite 1000
Houston, Texas  77057

Gentlemen:

              We have acted as counsel to Santa Fe Energy Resources, Inc. (the
"Company") in connection with the Company's Registration Statement on Form S-3
(Commission File No. 33-52849, the "Registration Statement") relating to the
registration under the Securities Act of 1933, as amended, of the offering and
sale of (a) up to $100,000,000 principal amount of the Company's       % Senior
Subordinated Debentures due 2004 (the "Debentures") and (b) up to 12,305,000
shares of the Company's $        Series A Convertible Preferred Stock, par
value $0.01 per share (the "DECS"), and the shares of the Company's Common
Stock, par value $0.01 per share (the "Common Stock"), issuable upon the
redemption or conversion of the DECS.  The Debentures will be offered by
Salomon Brothers Inc, Dillon, Read & Co. Inc., Lazard Freres & Co. and Chemical
Securities Inc.  The DECS will be offered by the several underwriters
represented by Salomon Brothers Inc, Lazard Freres & Co. and PaineWebber
Incorporated.

              As the basis for the opinion hereinafter expressed, we have
examined such statutes, regulations, corporate records and documents,
certificates of corporate and public officials, and other instruments as we
have deemed necessary or advisable for the purposes of this opinion.  In such
examination we have assumed the authenticity of all documents submitted to us
as originals and the conformity with the original documents of all documents
submitted to us as copies.

              Based on the foregoing and on such legal considerations as we
deem relevant for purposes of this opinion, we are of the opinion that (a) the
Debentures to be issued and sold as described in the Registration Statement
have been duly and validly authorized by all necessary corporate action by the
Company and, assuming due execution and delivery of the Indenture pursuant to
which the Debentures will be issued (the "Indenture") and the qualification
thereof under the Trust Indenture Act of 1939, as amended, the due execution
and authentication of the Debentures as specified in the Indenture and delivery
of the Debentures against payment therefor, the Debentures will constitute
valid and legally binding obligations of the Company, subject to any applicable
bankruptcy, insolvency, fraudulent transfer, 

<PAGE>   2
Board of Directors
Santa Fe Energy Resources, Inc.
May 12, 1994
Page 2




reorganization, moratorium and other laws of general applicability relating to
or affecting creditors' rights and to general equitable principles; and (b) the
DECS to be issued and sold as described in the Registration Statement and the
Common Stock issuable upon the redemption or conversion of the DECS have been
duly and validly authorized by all necessary corporate action by the Company
and, assuming the due execution, filing with the Secretary of State of the
State of Delaware and effectiveness of the Certificate of Designations pursuant
to which the DECS will be issued (the "Certificate of Designations"), the due
execution and authentication of the certificates for the DECS and delivery of
the DECS against payment therefor, the DECS and, in the event of conversion or
redemption of the DECS as provided in the Certificate of Designations, the
shares of Common Stock issuable upon conversion or redemption of the DECS will
be validly issued, fully-paid and nonassessable.

              In addition, we have reviewed the information contained in the
Registration Statement related to the federal income tax considerations
applicable to the ownership and disposition of DECS.  Such information is
accurate to the extent such constitutes matters of law or legal conclusions.

              We hereby consent to the use of this opinion as an exhibit to the
Registration Statement and reference to our firm under the captions "Validity
of the Debentures", "Validity of the Securities" and "Federal Income Tax
Considerations" in the Prospectuses included therein.

                                         Very truly yours,

                                        /s/ Andrews & Kurth L.L.P.



<PAGE>   1

                     (Letterhead of Andrews & Kurth L.L.P.)


                                                                     EXHIBIT 7.1

                                  May 12, 1994


Board of Directors
Santa Fe Energy Resources, Inc.
1616 South Voss, Suite 1000
Houston, Texas  77057

Gentlemen:

              We have acted as counsel to Santa Fe Energy Resources, Inc. (the
"Company") in connection with the Company's Registration Statement on Form S-3
(Commission File No. 33-52849, the "Registration Statement") relating to the
registration under the Securities Act of 1933, as amended, of, inter alia,
shares of the Company's $        Series A Convertible Preferred Stock, par
value $0.01 per share (the "DECS").  Upon issuance, the DECS will have a
liquidation preference equal to the sum of the initial public offering price
per DECS plus accrued and unpaid dividends thereon.

              For purposes of rendering this opinion, we have examined and have
relied upon the Company's Restated Certificate of Incorporation, as amended
(the "Charter"), and we have assumed the filing with the Secretary of State of
the State of Delaware and the effectiveness of a Certificate of Designations
(the "Certificate of Designations") with respect to the DECS identical in form
to Exhibit 4.3 to the Registration Statement (the Charter, as amended by such
Certificate of Designations, is referred to herein as the "Certificate").  We
have received a copy of the Charter certified as of a recent date by the
Secretary of the Company as true and correct, and for purposes of this opinion
have assumed that the Charter has not been and will not be altered, amended or
repealed in any respect material to our opinion as stated herein, except as
amended by the Certificate of Designations.  For purposes of this opinion, we
have not reviewed any document other than the Certificate, nor have we
conducted any independent factual investigations of our own, and, for purposes
of this opinion, we assume that there exists no provision of any other document
nor any agreement, arrangement or understanding which is inconsistent with our
opinion as expressed herein.

              In summary, the Certificate provides that, in the event of any
liquidation, dissolution or winding up of the Company, whether voluntary or
involuntary, the holders of the DECS, subject to the prior payment in full of
the preferential amounts to which any stock of the Company ranking senior to
the DECS is entitled, shall be entitled to receive the sm of (a) the initial
public offering price per DECS, plus (b) an amount equal to any accrued and
unpaid dividends thereon, out of the assets of the Company available for
distribution to stockholders, before any payment or 

<PAGE>   2
Board of Directors
Santa Fe Energy Resources, Inc.
May 12, 1994
Page 2




distribution shall be made to the holders of any stock  of the Company ranking
subordinate to the DECS upon liquidation, dissolution or winding-up.  The
amount so payable by the Company to the holders of the DECS upon the
liquidation, dissolution or winding up of the Company is hereinafter referred
to as the "Liquidation Preference" of the DECS.

              In this regard, you have requested our opinion under the General
Corporation Law of the State of Delaware (the "Delaware Act"):  (1) whether, as
a matter of law, prior to a liquidation, dissolution or winding up of the
Company, there will be any restriction upon the surplus of the Company
available for the payment of dividends on stock of the Company solely by reason
of the fact that the Liquidation Preference of the DECS exceeds the par value
of the shares of such class of stock; and (2) whether, as a matter of law, any
remedy would be available to holders of the DECS, either before or after
payment of any dividend, prior to a liquidation, dissolution or winding up of
the Company, solely by reason of the fact that payment of such dividend would
reduce or reduces the surplus of the Company to an amount less than the
difference between the Liquidation Preference of the DECS and the par value of
the DECS.

              Section 170 of the General Corporation Law authorizes a Delaware
corporation to pay dividends out of its surplus.  Surplus is defined in Section
154 of the Delaware Act as the amount by which the net assets of a corporation
exceed its capital.  Both net assets, as defined in Section 154 and capital, as
defined in and determined in accordance with Sections 154 and 244 of the
Delaware Act, are determined without reference to the amount of any liquidation
preference of any class of the corporation's stock.  Accordingly, the
authorization in Section 170 of the Delaware Act for payment of dividends out
of surplus is not in any way limited or restricted solely by reason of the fact
that a class or classes of stock of a corporation such as the DECS have a
liquidation preference in excess of the par value of such stock.

              We are aware of no controlling decision of any court of the State
of Delaware that has addressed this issue, but we believe that the courts of
the State of Delaware would adopt the reasoning set forth herein should the
question be litigated.  We note in addition that our opinion as stated herein
is supported by the discussion of the Court in Bailey v. Tubize Rayon
Corporation, 56 F. Supp. 418, 423 (D. Del. 1944) (applying Delaware law).

              Based upon and subject to the foregoing, and subject to the
limitations stated hereinbelow, it is our opinion that, solely as a matter of
law, under the Delaware Act as in effect on the date hereof:  (1) prior to a
liquidation, dissolution or winding up of the Company, there will be no
restriction upon the surplus of the Company available for the payment of
dividends on stock of the Company solely by reason of the fact that the
Liquidation Preference of the DECS exceeds the par value 

<PAGE>   3
Board of Directors
Santa Fe Energy Resources, Inc.
May 12, 1994
Page 3





of the shares of such class of stock; and (2) no remedy would be available to
holders of the DECS, either before or after payment of any dividend, prior to a
liquidation, dissolution or winding up of the Company, solely by reason of the
fact that payment of such dividend would reduce the surplus of the Company to
an amount less than the difference between the Liquidation Preference of the
DECS and the par value of such shares of the DECS.

              The foregoing opinion is limited to the Delaware Act, and we have
not considered and express no opinion on the effect of any other laws or the
laws of any other state or jurisdiction, including Federal laws regulating
securities or other Federal laws, or the rules and regulations of stock
exchanges or of any other regulatory body.  In addition, our opinion as stated
herein addresses only the question of whether, solely as a matter of law, there
will be any restriction upon the surplus available for payment of dividends or
any remedy available to holders of the DECS before or after payment of
dividends solely by reason of the excess of the Liquidation Preference of the
DECS over the par value of the DECS, and we render no opinion on the effect of
any restrictions on the payment of dividends on other stock prior to payment of
all accumulated dividends on or the redemption of the DECS contained in the
Certificate or any other agreement or instrument to which the Company is a
party or the effect of any other restrictions regarding payment of dividends or
remedies relating thereto contained in the Certificate or any other such
agreement or instrument.

              We hereby consent to the use of this opinion as an exhibit to the
Registration Statement and references to our firm under the captions "Validity
of the Debentures", "Validity of the Securities" and "Federal Income Tax
Considerations" in the Prospectuses included therein.

                               Very truly yours,

                               /s/ Andrews & Kurth L.L.P.





<PAGE>   1
 
                                                                    EXHIBIT 23.1
 
                       CONSENT OF INDEPENDENT ACCOUNTANTS
 
     We hereby consent to the use in the Prospectuses constituting part of this
Registration Statement on Form S-3 of our report dated February 18, 1994
relating to the financial statements of Santa Fe Energy Resources, Inc., which
appears in such Prospectuses. We also consent to the application of such report
to the Financial Statement Schedules for the three years ended December 31, 1993
listed under Item 14(a)(2) of the Santa Fe Energy Resources, Inc. Annual Report
on Form 10-K for the year ended December 31, 1993, which is incorporated by
reference in these Prospectuses, when such schedules are read in conjunction
with the financial statements referred to in our report. The audits referred to
in such report also included these Financial Statement Schedules. We also
consent to the references to us under the headings "Experts" and "Selected
Financial and Operating Data" in such Prospectuses. However, it should be noted
that Price Waterhouse has not prepared or certified such "Selected Financial and
Operating Data".
 
PRICE WATERHOUSE
 
Houston, Texas
May 11, 1994

<PAGE>   1
 
                                                                    EXHIBIT 23.3
 
                         CONSENT OF RYDER SCOTT COMPANY
                              PETROLEUM ENGINEERS
 
     We hereby consent to the references to our firm included or incorporated by
reference in this Registration Statement on Form S-3.
 
                                            RYDER SCOTT COMPANY
                                            PETROLEUM ENGINEERS
 
Houston, Texas
May 11, 1994

<PAGE>   1



 SECURITIES ACT OF 1933 FILE NO:     (IF APPLICATION TO DETERMINE ELIGIBILITY
       OF TRUSTEE FOR DELAYED OFFERING PURSUANT TO SECTION 305(b)(2)

================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                            _______________________

                                    FORM T-1

                   STATEMENT OF ELIGIBILITY AND QUALIFICATION
                   UNDER THE TRUST INDENTURE ACT OF 1939 OF A
                    CORPORATION DESIGNATED TO ACT AS TRUSTEE

                CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY
               OF A TRUSTEE PURSUANT TO SECTION 305(b) (2)_______

                             ______________________

                       THE FIRST NATIONAL BANK OF BOSTON
              (Exact name of Trustee as specified in its charter)


                                   04-2472499
                      (I.R.S. Employer Identification No.)


   100 Federal Street, Boston, Massachusetts                      02110 
    (Address of principal executive offices)                    (Zip Code)

                       Gary A. Spiess, Cashier and General Counsel
   100 Federal Street, 24th Floor, Boston, Massachusetts 02110 (617) 434-2870


                           __________________________


                        Santa Fe Energy Resources, Inc.
              (Exact name of obligor as specified in its charter)


          Delaware                                               36-2722169 
(State or other jurisdiction of                               (I.R.S. Employer
 incorporation or organization)                              Identification No.)

  1616 South Voss Road, Suite 1000                                 77057
           Houston, Texas                                        (Zip Code) 
(Address of principal executive offices)


                   % Senior Subordinated Debentures Due 2004
                        (Title of Indenture Securities)

================================================================================

<PAGE>   2



  1.  General Information.

       Furnish the following information as to the trustee:

       (a)   Name and address of each examining or supervising authority to
             which it is subject.

        Comptroller of the Currency of the United States, Washington D.C.
        Board of Governors of the Federal Reserve System, Washington, D.C.
        Federal Deposit Insurance Corporation, Washington, D.C.

       (b)  Whether it is authorized to exercise corporate trust powers.

        Trustee is authorized to exercise corporate trust powers.

  2.  Affiliations with Obligor and Underwriters.

      If the obligor or any underwriter for the obligor is an affiliate of the
  trustee, describe each such affiliation.

        None with respect to the Trustee.
        (See Notes on page 2)
        None with respect to Bank of Boston Corporation.

  16. List of Exhibits.

        List below all exhibits filed as part of this statement of eligibility
        and qualification.

        1.  A  copy of the articles of association of the trustee as now in
            effect.

        A certified copy of the Articles of Association of the trustee is filed
  as Exhibit No. 1 to statement of eligibility and qualification No. 22-9514 and
  is incorporated herein by reference thereto.

        2.  A copy of the certificate of authority of the trustee to commence
            business, if not contained in the articles of association.

        A copy of the certificate of T. McLean Griffin, Cashier of the trustee,
  dated February 3, 1978, as to corporate succession containing copies of the
  Certificate of the Comptroller of the Currency that The Massachusetts Bank,
  National Association, into which The First National Bank of Boston was merged
  effective January 4, 1971, is authorized to commence the business of banking
  as a national banking association, as well as a certificate as to such merger
  is filed as Exhibit No. 2 to statement of eligibility and qualification No.
  22-9514 and is incorporated herein by reference thereto.

        3.  A copy of the authorization of the trustee to exercise corporate
            trust powers, if such authorization is not contained in the 
            documents specified in paragraph (1) or (2) above.

        A copy of a certificate of the Office of the Currency dated February 6,
  1978 is filed as Exhibit No. 3 to statement of eligibility and qualification
  No. 22-9514 and is incorporated herein by reference thereto.

        4.  A copy of the existing by-laws of the trustee, or instruments
            corresponding thereto.

        A certified copy of the existing By-Laws of the trustee dated December
  23,1993 is filed as Exhibit No. 4 to statement of eligibility and
  qualifications No. 22-25754 and is incorporated herein by reference thereto.

        5.  The consent of the trustee required by Section 321(b) of the Act.

        The consent of the trustee required by Section 321(b) of the Act is
  annexed hereto and made a part hereof.

        6.  A copy of the latest report of condition of the trustee published
            pursuant to law or the requirements of its supervising or 
            examining authority.

        A copy of the latest report of condition of the trustee published
  pursuant to law or the requirements of its supervising or examining authority
  is annexed hereto as Exhibit 6 and made a part hereof.

<PAGE>   3

                                     NOTES

        In answering any item in this Statement of Eligibility and Qualification
  which relates to matters peculiarly within the knowledge of the obligor or any
  underwriter for the obligor, the trustee has relied upon  information
  furnished to it by the obligor and the underwriters, and the trustee disclaims
  responsibility for the accuracy or completeness of such information.

        The answer furnished to Item 2 of this statement will be amended, if
  necessary, to reflect any facts which differ from those stated and which would
  have been required to be stated if known at the date hereof.

                                   SIGNATURE
  Pursuant to the  requirements of the Trust Indenture Act of 1939, the trustee,
  The First National Bank of Boston, a national banking association organized
  and existing under the laws of The United States of America, has duly caused
  this statement of eligibility and qualification to be signed on its behalf by
  the undersigned, thereunto duly authorized, all in the City of Boston and
  Commonwealth of Massachusetts, on the 27th day of April, 1994.


                                      THE FIRST NATIONAL BANK OF BOSTON, Trustee


                                      By ERIC J. DONAGHEY
                                         _________________________________
                                         Eric J. Donaghey
                                         Account Manager


                                   EXHIBIT 5

                               CONSENT OF TRUSTEE


        Pursuant to the requirements of Section 321(b) of the Trust Indenture
  Act of 1939, in connection with the proposed issue of Santa Fe Energy
  Resources, Inc. % Senior Subordinated Debentures due 2004, we hereby consent
  that reports of examinations by Federal, State, Territorial, or District
  authorities may be furnished by such authorities to the Securities and
  Exchange Commission upon request therefor.

                                     THE FIRST NATIONAL BANK OF BOSTON, Trustee


                                     By ERIC J. DONAGHEY
                                        __________________________________
                                        Eric J. Donaghey
                                        Account Manager




<PAGE>   4

                                   EXHIBIT 6
             CONSOLIDATED REPORT OF CONDITION, INCLUDING DOMESTIC
                        AND FOREIGN SUBSIDIARIES, OF

                       THE FIRST NATIONAL BANK OF BOSTON

        In the Commonwealth of Massachusetts, at the close of business on
  December 31, 1993.  Published in response to call made by Comptroller of the
  Currency, under Title 12, United States Code, Section 161.  Charter number
  200.  Comptroller of the Currency Northeastern District.

                                     ASSETS
<TABLE>
<CAPTION>
                                                                                                               Dollar
                                                                                                              Amounts in
                                                                                                               Thousands
                                                                                                              -----------
   <S>                                                                                                         <C>
   Cash and balances due from depository institutions:
        Noninterest-bearing balances and currency and coin. . . . . . . . . . . . . . . . . . . . . . . . .    $ 1,896,648
              Interest-bearing balances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        989,983
   Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2,120,299
   Federal funds sold and securities purchased under agreements to resell in
        domestic offices of the bank and of its Edge and Agreement subsidiaries, and in IBF's:
        Federal funds sold  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        786,594
        Securities purchased under agreements to resell   . . . . . . . . . . . . . . . . . . . . . . . . .              0
   Loans and lease financing receivables:
        Loans and leases, net of unearned income  . . . . . . . . . . . . . .   $21,760,082
        LESS: Allowance for loan and lease losses . . . . . . . . . . . . . .       488,235
        LESS: Allocated transfer risk reserve . . . . . . . . . . . . . . . .             0
        Loans and leases, net of unearned income, allowance and reserve . . . . . . . . . . . . . . . . . .     21,271,847
   Assets held in trading accounts  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        303,841
   Premises and fixed assets (including capitalized leases) . . . . . . . . . . . . . . . . . . . . . . . .        317,599
   Other real estate owned  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .         42,600
   Investments in unconsolidated subsidiaries and associated companies  . . . . . . . . . . . . . . . . . .        118,921
   Customers' liability to this bank on acceptances outstanding . . . . . . . . . . . . . . . . . . . . . .        374,873
   Intangible assets  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        307,582
   Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      1,020,881
                                                                                                               -----------
               Total Assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $29,551,668
                                                                                                               ===========
                                                            LIABILITIES
   Deposits:
        In domestic offices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $13,331,731
        Noninterest-bearing . . . . . . . . . . . . . . . . . . . . . . . . .   $ 3,780,365
        Interest-bearing  . . . . . . . . . . . . . . . . . . . . . . . . . .     9,551,366
   In foreign offices, Edge and Agreement subsidiaries, and IBF's . . . . . . . . . . . . . . . . . . . . .      7,295,863
        Noninterest-bearing . . . . . . . . . . . . . . . . . . . . . . . . .       525,888
        Interest-bearing  . . . . . . . . . . . . . . . . . . . . . . . . . .     6,769,975
   Federal funds purchased and securities sold under agreements to repurchase in domestic
        offices of the bank and of its Edge and Agreement subsidiaries, and in IBF's:
        Federal funds purchased . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      1,302,034
        Securities sold under agreements to repurchase  . . . . . . . . . . . . . . . . . . . . . . . . . .        199,132
   Demand notes issued to the U.S. Treasury . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .         48,780
   Other borrowed money . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      3,590,568
   Mortgage indebtedness and obligations under capitalized leases . . . . . . . . . . . . . . . . . . . . .         14,180
   Bank's liability on acceptances executed and outstanding . . . . . . . . . . . . . . . . . . . . . . . .        375,153
   Subordinated notes and debentures  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        598,835
   Other liabilities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        723,480
                                                                                                               -----------
             Total Liabilities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $27,479,757
                                                                                                               ===========
   Limited-life preferred stock and equity capital  . . . . . . . . . . . . . . . . . . . . . . . . . . . .              0

                                                          EQUITY CAPITAL

   Perpetual preferred stock and related surplus  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    $         0
   Common stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .         75,200
   Surplus  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .        893,227
   Undivided profits and capital reserves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      1,076,870
   LESS: Net unrealized loss on marketable equity securities  . . . . . . . . . . . . . . . . . . . . . . .        (34,746)
   Cumulative foreign currency translation adjustments  . . . . . . . . . . . . . . . . . . . . . . . . . .         (8,132)
   Total equity capital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .      2,071,911
                                                                                                               -----------
             Total Liabilities, Limited-life preferred stock, and equity  . . . . . . . . . . . . . . . . .    $29,551,668
                                                                                                               ===========
</TABLE>
<PAGE>   5

        I, Robert T. Jefferson,  Comptroller of the above-named bank, do hereby
  declare that this Report of Condition is true and correct to the best of my
  knowledge and belief.

                                                     Robert T. Jefferson

                                                               February 9, 1994


        We, the undersigned directors, attest to the correctness of this
  statement of resources and liabilities.  We declare that it has been examined
  by us, and to the best of our knowledge and belief has been prepared in
  conformance with the instructions and is true and correct.

                                                     Charles G. Gifford
                                                     Ira Stepanian
                                                     Paul C. O'Brien
                                                              Directors


                                                               February 9, 1994



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