SANTA FE ENERGY RESOURCES INC
424B4, 1994-05-19
CRUDE PETROLEUM & NATURAL GAS
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<PAGE>   1
                                                  Filed pursuant to Rule 424b4
                                                  Registration No. 033-52849
   
PROSPECTUS
    
 
$100,000,000
 
SANTA FE ENERGY RESOURCES, INC.
 
   
11% SENIOR SUBORDINATED DEBENTURES DUE 2004
    
 
   
The 11% 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 May 15, 2004. Interest on the Debentures
will be payable semi-annually on May 15 and November 15 of each year, beginning
on November 15, 1994. The Debentures are not redeemable prior to May 15, 1999.
At any time on or after May 15, 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 $276.6 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.......................  99.266%               2.500%                 96.766%
Total...............................  $99,266,000           $2,500,000             $96,766,000
</TABLE>
    
 
- --------------------------------------------------------------------------------
 
   
(1) Plus accrued interest, if any, from May 25, 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 25, 1994.
    
 
SALOMON BROTHERS INC
                  DILLON, READ & CO. INC.
 
                                     LAZARD FRERES & CO.
 
                                                  CHEMICAL SECURITIES INC.
 
   
The date of this Prospectus is May 18, 1994.
    
<PAGE>   2
 
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>   3
 
                               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>   4
 
     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>   5
 
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 May 15, 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 $179.3 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 $6.1 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>   6
 
                             THE DEBENTURE OFFERING
 
   
<TABLE>
<S>                              <C>
Securities Offered............   $100,000,000 principal amount of 11% Senior Subordinated
                                 Debentures Due 2004.
Maturity Date.................   May 15, 2004.
Interest Payment Dates........   May 15 and November 15 of each year, commencing November 15,
                                 1994.
Optional Redemption...........   The Debentures are not redeemable prior to May 15, 1999. At
                                 any time on or after May 15, 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 $455.9
                                 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 $276.6
                                 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 $96.3 million.
                                 Such net proceeds will be used to repay certain existing
                                 Senior Indebtedness. See "Use of Proceeds."
</TABLE>
    
 
                                        6
<PAGE>   7
 
                         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).......      9.3       41.2        10.3        13.7        45.8        55.6      47.3      57.1      30.5
  Net income (loss).........     (1.9)     (74.2)       (2.5)       (0.4)      (77.1)       (1.4)     18.5      17.0      49.8
  Earnings (loss) to Common
    Stock...................     (5.7)     (89.0)       (4.3)       (2.2)      (84.1)       (5.7)     18.5      17.0      49.8
  Earnings (loss) per share
    of Common Stock......... $  (0.06)  $  (0.99)   $  (0.05)   $  (0.02)   $  (0.94)   $  (0.07)  $  0.29   $  0.28        --
CASH FLOW DATA:
  Net cash provided by
    operating activities.... $    4.4   $  153.8    $   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.......      3.8       14.8         1.8         1.8         7.0         2.6        --        --        --
  Common Stock
    dividends(e)............       --       14.3          --         3.5        14.3        12.3      10.2       5.1        --
</TABLE>
    
 
   
<TABLE>
<S>                          <C>        <C>         <C>         <C>         <C>         <C>        <C>       <C>       <C>
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    1,079.2     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...      2.7x       4.6x        2.5x        3.9x        4.0x        3.5x      3.8x      3.3x      5.1x
  EBITDA/Preferred dividends
    and interest expense....      1.9x       3.3x        2.1x        3.5x        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      2.1x
</TABLE>
    
 
                                                   (See notes on following page)
 
                                        7
<PAGE>   8
 
- ---------------
 
   
(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."
    
 
(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. 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, $4.0 million, $166.7
     million and $13.6 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 $14.4 million and $174.9 million, respectively.
    
 
                                        8
<PAGE>   9
 
                             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>   10
 
                    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>   11
 
                           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>   12
 
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>   13
 
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>   14
 
     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>   15
 
                      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)       1.5x      1.3x      2.1x
Earnings to Combined Fixed Charges
  and Preferred Stock Dividends......   (b)       (b)       (b)       (b)       1.5x      1.3x      2.1x
</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, $1.0 million, $155.2 million and $6.6
    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, $4.0 million, $166.7 million
    and $13.6 million, respectively.
    
 
                                USE OF PROCEEDS
 
   
     The net proceeds to the Company from the sale of the Debentures offered
hereby are estimated to be approximately $96.3 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 $25.0 million at May 17, 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>   16
 
                                 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           53.8             7.0
  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.....................           --           99.3            99.3
                                                          --------      ----------      ----------
     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 $25.2 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 $187.9 million)
     as described in "Use of Proceeds."
    
 
                                       16
<PAGE>   17
 
                     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>   18
 
<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 (MBOE/day)..........        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>   19
 
                    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>   20
 
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 approximately 25.0 million 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>   21
 
   
required to make additional royalty payments of $362,000 and $505,700 with
respect to the distributions made by the Trust for operations during the
quarters ended December 31, 1993 and March 31, 1994, respectively. 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 16.2 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 and the 575,000 Depositary Units.
 
     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 $1.4 million in dividend
 
                                       21
<PAGE>   22
 
income on Hadson preferred stock (paid in-kind) and a $0.6 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>   23
 
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>   24
 
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 $146.6 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>   25
 
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>   26
 
                            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>   27
 
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 $7.8 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 $179.3 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>   28
 
$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>   29
 
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>   30
 
     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>   31
 
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>   32
 
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>   33
 
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>   34
 
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>   35
 
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>   36
 
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>   37
 
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 open natural gas hedging contracts
covering an aggregate of approximately 6.0 Bcf of natural gas 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.

     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 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

 
                                       37
<PAGE>   38
 
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
additional royalty payments of $362,000 and $505,700 with respect to the
distributions made by the Trust for operations during the quarters ended
December 31, 1993 and March 31, 1994, respectively.
    
 
                                       38
<PAGE>   39
 
   
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 1978 (collectively, the "Acts").
Numerous questions have been raised concerning the interpretation and
 
                                       39
<PAGE>   40
 
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>   41
 
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>   42
 
$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>   43
 
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>   44
 
                                   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>   45
 
     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>   46
 
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>   47
 
                         DESCRIPTION OF THE DEBENTURES
 
   
     The Debentures will be issued under an indenture to be dated as of May 25,
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 May 15, 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 May 25, 1994 (the
"Issue Date"), or from the most recent interest payment date to which interest
has been paid, payable semi-annually on May 15 and November 15 of each year,
beginning on November 15, 1994, to the person in whose name the Debenture (or
any predecessor Debenture) is registered at the close of business on the
preceding May 1 or November 1, 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 $276.6 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>   48
 
   
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>   49
 
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 May
15, 1999. At any time on or after May 15, 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 May 15:
    
 
   
<TABLE>
<CAPTION>
            YEAR                                                     REDEMPTION PRICE
            ----                                                     ----------------
            <S>                                                          <C>
            1999................................................         104.13%
            2000................................................         102.75%
            2001................................................         101.38%
</TABLE>
    
 
   
and thereafter, beginning May 15, 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>   50
 
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 $100
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>   51
 
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>   52
 
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 cash distributed in payment of 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.
(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 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)
 
                                       52
<PAGE>   53
 
     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)
 
     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
 
                                       53
<PAGE>   54
 
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 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
 
                                       54
<PAGE>   55
 
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, 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
 
                                       55
<PAGE>   56
 
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.
 
     "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
 
                                       56
<PAGE>   57
 
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.
 
     "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.
 
                                       57
<PAGE>   58
 
     "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
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
 
                                       58
<PAGE>   59
 
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 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).
 
                                       59
<PAGE>   60
 
     "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 $30 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 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
 
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<PAGE>   61
 
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.
 
     "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.
 
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<PAGE>   62
 
     "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.
 
     "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
 
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<PAGE>   63
 
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; (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
 
                                       63
<PAGE>   64
 
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
either Rating Agency within such period shall be at least one Gradation below
the rating of the Debentures by such Rating Agency on the Rating Date or (ii)
either Rating Agency shall withdraw its 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
 
                                       64
<PAGE>   65
 
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.
 
     "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
 
                                       65
<PAGE>   66
 
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 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
 
                                       66
<PAGE>   67
 
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 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)
 
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<PAGE>   68
 
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................................    $ 53,333,334
            Dillon, Read & Co. Inc..............................      18,333,333
            Lazard Freres & Co..................................      18,333,333
            Chemical Securities Inc.............................      10,000,000
                                                                    ------------
              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 .5% of the principal amount of the Debentures. The
Underwriters may allow, and such dealers may reallow, a discount not in excess
of .25% 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.
 
     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.
 
                                       68
<PAGE>   69
 
                           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>   70
 
                         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>   71
 
                       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>   72
                        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>   73
                        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>   74
                        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>   75
                        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>   76
                        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>   77
                        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>   78
                        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>   79
                        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>   80
                        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>   81
                        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>   82
                        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>   83
                        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>   84
                        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>   85
                        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>   86
                        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>   87
                        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>   88
                        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>   89
                        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>   90
                        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>   91
                        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>   92
                        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>   93
                        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>   94
                        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>   95
                        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>   96
                        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>   97
                        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>   98
                        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>   99
                        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>   100
                        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>   101
                        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>   102
                        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>   103
                       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>   104
                        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>   105
                        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>   106

                        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>   107
                        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>   108
                        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>   109
                        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>   110
                        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>   111
                        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>   112
 
NO DEALER, SALESPERSON OR ANY OTHER PERSON HAS BEEN AUTHORIZED TO GIVE 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
HEREUNDER SHALL, UNDER ANY CIRCUMSTANCES, 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 MAKE SUCH SOLICITATION.
 
                            ---------------------
 
                              TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                      PAGE
                                                                     ------
<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
Capitalization....................................................     16
Selected Financial and Operating Data.............................     17
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
Index to Financial Statements.....................................    F-1
</TABLE>

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                                 $100,000,000
                                      
                                      
                               SANTA FE ENERGY
                               RESOURCES, INC.
                                      


   
                           11% SENIOR SUBORDINATED
    
                             DEBENTURES DUE 2004




                             SALOMON BROTHERS INC
                                      
                           DILLON, READ & CO. INC.
                                      
                             LAZARD FRERES & CO.
                                      
                           CHEMICAL SECURITIES INC.
                                      



                                  PROSPECTUS
   
                              DATED MAY 18, 1994
    



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