MITCHELL ENERGY & DEVELOPMENT CORP
424B2, 1994-01-21
CRUDE PETROLEUM & NATURAL GAS
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<PAGE>   1
                            Filed Pursuant to Rule 424B2  File #33-57332 
PROSPECTUS SUPPLEMENT
(TO PROSPECTUS DATED FEBRUARY 19, 1993)
 
                                  $100,000,000
 
                                     [LOGO]

                      MITCHELL ENERGY & DEVELOPMENT CORP.
 
                          5.10% SENIOR NOTES DUE 1997
                               ------------------
     The 5.10% Senior Notes due February 15, 1997 (the "Notes") are being
offered by Mitchell Energy & Development Corp. (the "Company"). Interest on the
Notes is payable semi-annually on February 15 and August 15 of each year,
beginning August 15, 1994. The Notes are not redeemable at the option of the
Company prior to maturity.
 
     The Notes will be issuable and transferable in fully registered form, in
denominations of $1,000 and any integral multiple thereof.
                               ------------------
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 COMMIS-
        SION PASSED UPON THE ACCURACY OR ADEQUACY OF THIS
           PROSPECTUS SUPPLEMENT OR THE PROSPECTUS. ANY REPRE-
              SENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                    PRICE TO      UNDERWRITING    PROCEEDS TO
                                                   PUBLIC(1)      DISCOUNT(2)    COMPANY(1)(3)
- ------------------------------------------------------------------------------------------------
<S>                                                <C>            <C>             <C>

Per Note........................................       100%           .5%            99.5%
- ------------------------------------------------------------------------------------------------
Total...........................................   $100,000,000     $500,000      $99,500,000
</TABLE>
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
(1) Plus accrued interest, if any, from January 27, 1994.
 
(2) The Company has agreed to indemnify the Underwriters against certain
    liabilities under the Securities Act of 1933. See "Underwriting."
 
(3) Before deduction of expenses payable by the Company estimated at $185,000.
                               ------------------
     The Notes are offered by the several Underwriters, subject to prior sale,
when, as and if issued by the Company, delivered to and accepted by them,
subject to approval of certain legal matters by counsel for the Underwriters and
certain other conditions. The Underwriters reserve the right to withdraw, cancel
or modify such offer, and to reject orders in whole or in part. It is expected
that delivery of the Notes will be made in New York, New York on or about
January 27, 1994.
                               ------------------
MERRILL LYNCH & CO.
                   CITICORP SECURITIES, INC.
                                     J.P. MORGAN SECURITIES INC.
                                                   UBS SECURITIES INC.
                               ------------------
          The date of this Prospectus Supplement is January 20, 1994.

<PAGE>   2
 
     IN CONNECTION WITH THIS OFFERING, THE UNDERWRITERS MAY OVER-ALLOT OR EFFECT
TRANSACTIONS WHICH STABILIZE OR MAINTAIN THE MARKET PRICE OF THE NOTES AT A
LEVEL ABOVE THAT WHICH MIGHT OTHERWISE PREVAIL IN THE OPEN MARKET. SUCH
STABILIZING, IF COMMENCED, MAY BE DISCONTINUED AT ANY TIME.
 
                                USE OF PROCEEDS
 
     The net proceeds from the sale of the Notes are estimated to be
$99,315,000. The Company intends to use such proceeds to repay floating-rate
bank debt incurred under revolving credit agreements of its primary energy and
real estate subsidiaries. Interest rates on such revolving credit borrowings
currently range from 4.4% to 4.8%. Such borrowings mature in July 1998 and were
used for capital expenditures, working capital and other corporate purposes. The
bank indebtedness to be repaid from the proceeds of this offering may be
reborrowed subsequently to repay long-term debt, to fund capital expenditures or
for other corporate purposes.
 
                              DESCRIPTION OF NOTES
 
     The following description of the particular terms of the Notes offered
hereby (referred to herein as the "Notes" and in the Prospectus as the "Offered
Debt Securities") supplements, and to the extent inconsistent therewith
replaces, the description of the general terms and provisions of Debt Securities
set forth in the Prospectus, to which description reference is hereby made. The
Notes will be issued under a Senior Indenture dated as of January 1, 1993
between the Company and NationsBank of Texas, National Association, as trustee,
as supplemented by the First Supplemental Indenture dated as of January 15, 1994
and the Second Supplemental Indenture dated as of January 20, 1994 (the "Senior
Debt Indenture"). The Notes are part of $400,000,000 aggregate principal amount
of Debt Securities registered by the Company in February 1993 to be issued on
terms to be determined at the time of sale. $250,000,000 of such Debt Securities
were sold earlier in January 1994. Except as otherwise defined herein,
capitalized terms used herein have the meanings specified in the accompanying
Prospectus or in the Senior Debt Indenture.
 
     The maximum aggregate principal amount of Notes which may be issued is
limited to $100,000,000. Interest at the annual rate set forth on the cover page
of this Prospectus Supplement is to accrue from January 27, 1994 and is to be
payable semiannually on February 15 and August 15, commencing August 15, 1994,
to the persons in whose names the Notes are registered at the close of business
on the preceding February 1 or August 1, respectively, and, unless otherwise
determined by the Company, will be paid by check mailed on or before the payment
date, by first class mail to such persons. Principal and interest will be
payable, and the Notes will be transferable, at the agency of the Trustee,
NationsBank of Georgia, N.A., 715 Peachtree, 7th Floor, Atlanta, Georgia
30308-1297. The Notes will be issued only in fully registered form in
denominations of $1,000 and integral multiples thereof.
 
     The Notes will mature on February 15, 1997. The Notes will not be
redeemable at the option of the Company prior to maturity.
 
     Upon the occurrence of a Special Redemption Event, each holder of the Notes
then outstanding will have the right to require the Company to redeem all or any
part of such holder's Notes at a price equal to 100% of the principal amount
thereof plus accrued interest to the date of redemption. Within 15 days after
the occurrence of a Special Redemption Event, the Company will give notice
thereof to all holders of the Notes. Such notice will state, among other things,
the date of redemption, which will be the first Business Day next succeeding 60
days after the giving of the notice. For a Note to be redeemed at the election
of the holder, the Company must receive such Note on or before the tenth day
prior to the date of redemption, accompanied by written irrevocable notice to
the Company
 
                                       S-2
<PAGE>   3
 
(which must be substantially in the form specified on the reverse of the Note)
instructing the Company to redeem such Note. The following additional defined
terms are relevant to this provision:
 
          "Adjusted Consolidated Stockholders' Equity" means the sum of (a)
     Consolidated Stockholders' Equity and (b) the aggregate book value of all
     Special Dividends that may have been declared or paid by the Company other
     than the Special Dividend with respect to which such computation is being
     made.
 
          "Consolidated Stockholders' Equity" means the sum of the amounts set
     forth on the consolidated balance sheet of the Company and its
     Subsidiaries, prepared in accordance with generally accepted accounting
     principles and as of any date selected by the Company not more than 90 days
     prior to the taking of any action for the purpose of which the
     determination is being made, as (a) the par or stated value of all
     outstanding capital stock of the Company, (b) paid-in capital or capital
     surplus relating to such capital stock and (c) retained earnings or earned
     surplus, less treasury stock.
 
          "Energy 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.
 
          "Energy Subsidiary" means any Subsidiary primarily engaged in the
     Energy Business at the time of determination, whether directly or through
     any subsidiary thereof.
 
          "Special Dividend" means any declaration or payment by the Company on
     or after January 15, 1994 of any dividend or other distribution on any
     class of its capital stock or to the holders of any class of its capital
     stock payable in shares of the capital stock of any Energy Subsidiary (or
     rights or warrants to acquire such shares).
 
          "Special Redemption Event" means any declaration or payment by the
     Company of any Special Dividend, if (a) at the time of such action an Event
     of Default shall have occurred and be continuing, or (b) at the time the
     Company becomes committed to take such action and upon giving effect to
     such Special Dividend and all other Special Dividends declared or paid
     prior thereto, Adjusted Consolidated Stockholders' Equity would decrease by
     more than 33 1/3 percent.
 
     The Company will comply with Rule 14e-1 under the 1934 Act and any other
securities laws and regulations thereunder, to the extent such laws and
regulations are applicable, in the event that a Special Redemption Event occurs
and the Company is required to purchase Notes as described above.
 
                                  UNDERWRITING
 
     Subject to the terms and conditions set forth in the Terms Agreement (which
incorporates by reference the terms of the Underwriting Agreement, except to the
extent inconsistent therewith), the Underwriters named below have severally
agreed to purchase from the Company the following respective principal amounts
of Notes:
 
<TABLE>
<CAPTION>
                                                                            PRINCIPAL
                                                                             AMOUNT
                               UNDERWRITER                                  OF NOTES
                               -----------                                ------------
    <S>                                                                   <C>
    Merrill Lynch, Pierce, Fenner & Smith
                  Incorporated........................................    $ 25,000,000
    Citicorp Securities, Inc..........................................      25,000,000
    J. P. Morgan Securities Inc.......................................      25,000,000
    UBS Securities Inc................................................      25,000,000
                                                                          ------------
              Total...................................................    $100,000,000
                                                                          ------------
                                                                          ------------
</TABLE>
 
     The Underwriting Agreement provides that the obligations of the
Underwriters are subject to certain conditions precedent and that the
Underwriters will be obligated to purchase all of the Notes if any are
purchased.
 
                                       S-3
<PAGE>   4
 
     The Company has been advised by the Underwriters that the Underwriters
propose to offer the Notes to the public initially at the public offering price
set forth on the cover page of this Prospectus Supplement and to certain dealers
at such price less a concession of .3% of the principal amount per Note; that
the Underwriters and such dealers may allow a discount of .25% of such principal
amount on sales to certain other dealers; and that after the initial public
offering, the public offering price and concession and discount to dealers may
be changed by the Underwriters.
 
     The Company has agreed to indemnify the Underwriters against certain
liabilities, including civil liabilities under the Securities Act of 1933, as
amended, or contribute to payments which the Underwriters may be required to
make in respect thereof.
 
     The Underwriters have in the past and may in the future provide investment
banking and other related services to the Company in the ordinary course of
business. In the ordinary course of their respective businesses, affiliates of
Citicorp Securities, Inc., J.P. Morgan Securities Inc. and UBS Securities Inc.
have engaged, and may in the future engage, in commercial banking and personal
banking transactions with the Company and its affiliates. As further discussed
under "Use of Proceeds," the Company intends to use the proceeds of this
offering to repay bank debt outstanding under certain revolving credit
agreements. Citibank, N.A. and Citicorp USA, Inc., affiliates of Citicorp
Securities, Inc., and Morgan Guaranty Trust Company of New York, an affiliate of
J.P. Morgan Securities Inc., are lenders under such agreements. Because more
than ten percent of the net offering proceeds may be paid to an affiliate of a
member of the National Association of Securities Dealers, Inc. (the "NASD")
which is participating in the distribution of the Notes, this offering is being
made pursuant to the provisions of Article III, Section 44(c)(8) of the NASD
Rules of Fair Practice.
 
                                    EXPERTS
 
     The consolidated financial statements and schedules included or
incorporated by reference in the Company's Annual Report on Form 10-K for the
fiscal year ended January 31, 1993, which is incorporated by reference herein,
have been audited by Arthur Andersen & Co., independent public accountants, as
indicated in their reports with respect thereto, and are incorporated herein in
reliance upon the authority of said firm as experts in accounting and auditing
in giving said reports. Reference is made to such reports, which call attention
to certain changes in accounting principles during the periods reported thereon.
 
                                       S-4
<PAGE>   5
 
PROSPECTUS
                                  $400,000,000

                      Mitchell Energy & Development Corp.
                                Debt Securities

                            ------------------------
 
     Mitchell Energy & Development Corp. (the "Company") may offer and sell from
time to time, in one or more series, its debt securities (the "Debt Securities")
with an aggregate initial offering price not to exceed $400,000,000, on terms to
be determined at the time of offering. The specific designation, aggregate
principal amount, ranking as senior or subordinated Debt Securities, maturity,
rate (or method of determining the same) and time of payment of interest, if
any, purchase price, any terms in addition to or different from those described
herein for redemption or repurchase or conversion into shares of non-voting
Class B Common Stock, par value $0.10 per share, of the Company ("Common
Stock"), the names of and the principal amounts to be purchased by or through
agents, dealers or underwriters, if any, the compensation of such persons and
other special terms in connection with the offering and sale of the series of
Debt Securities in respect of which this Prospectus is being delivered are set
forth in the accompanying Prospectus Supplement (the "Prospectus Supplement").

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

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.

                            ------------------------
 
     THIS PROSPECTUS MAY NOT BE USED TO CONSUMMATE SALES OF THE DEBT SECURITIES
UNLESS ACCOMPANIED BY A PROSPECTUS SUPPLEMENT.

               THE DATE OF THIS PROSPECTUS IS FEBRUARY 19, 1993.
<PAGE>   6
 
                             AVAILABLE INFORMATION
 
     The Company is subject to the informational requirements of the Securities
Exchange Act of 1934, as amended (the "1934 Act"), and in accordance therewith
files reports and other information with the Securities and Exchange Commission
(the "SEC"). Reports, proxy and information statements and other information
filed by the Company with the SEC can be inspected and copied at the public
reference facilities maintained by the SEC at 450 Fifth Street, N.W., Room 1024,
Washington, D.C. 20549, as well as the regional offices of the SEC at the
Northwest Atrium Center, 500 West Madison Street, Suite 1400, Chicago, Illinois
60661-2511, and 7 World Trade Center, New York, New York 10048. Copies of such
material may also be obtained from the Public Reference Section of the SEC in
its Washington, D.C. office at prescribed rates. Both the Common Stock and the
voting Class A Common Stock of the Company are listed on the New York Stock
Exchange and the Pacific Stock Exchange. The reports, proxy and information
statements and other information concerning the Company described above may be
inspected at the New York Stock Exchange, 20 Broad Street, New York, New York,
and the Pacific Stock Exchange, 301 Pine Street, San Francisco, California.
 
     This Prospectus constitutes a part of the Registration Statement on Form
S-3 (together with all amendments and exhibits thereto, the "Registration
Statement") filed by the Company with the SEC under the Securities Act of 1933,
as amended (the "1933 Act"). This Prospectus omits certain of the information
contained in the Registration Statement, and reference is hereby made to the
Registration Statement for further information with respect to the Company and
the securities offered hereby. Any statements contained herein concerning the
provisions of any document filed as an exhibit to the Registration Statement or
otherwise filed with the SEC are not necessarily complete, and in each instance
reference is made to the copy of such document so filed. Each such statement is
qualified in its entirety by such reference.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
     The following documents, heretofore filed with the SEC by the Company
pursuant to the 1934 Act, are incorporated herein by reference:
 
          (a) The Company's Annual Report on Form 10-K for the year ended
     January 31, 1992.
 
          (b) The Company's Quarterly Report on Form 10-Q for the quarter ended
     April 30, 1992.
 
          (c) The Company's Quarterly Report on Form 10-Q for the quarter ended
     July 31, 1992.
 
          (d) The Company's Quarterly Report on Form 10-Q for the quarter ended
     October 31, 1992.
 
          (e) The Company's Current Reports of Form 8-K dated March 11, 1992 and
     July 22, 1992 reporting the issuance of its 9 1/4% Senior Notes Due 2002
     and its 8% Senior Notes Due 1999, respectively.
 
          (f) The Company's Registration Statement on Form 8-A dated June 3,
     1992 registering both the Common Stock and the voting Class A Common Stock
     of the Company pursuant to Section 12(b) of the 1934 Act.
 
     All documents filed by the Company pursuant to Section 13(a), 13(c), 14 or
15(d) of the 1934 Act subsequent to the date of this Prospectus and prior to the
termination of the offering of the Debt Securities pursuant hereto shall be
deemed to be incorporated by reference in this Prospectus and to be a part
hereof from the date of filing of such documents. Any statement contained in a
document 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 statement so modified or superseded shall not be deemed, except
as so modified or superseded, to constitute a part of this Prospectus.
 
     The Company will provide without charge to each person, including any
beneficial owner, to whom this Prospectus is delivered, upon written or oral
request of such person, a copy of any or all documents that have been
incorporated by reference in this Prospectus (not including exhibits to the
documents that are incorporated by reference unless such exhibits are
specifically incorporated by reference into the documents that this Prospectus
incorporates). Requests for such copies should be directed to the office of the
Vice President -- Public Affairs, Mitchell Energy & Development Corp., P.O. Box
4000, The Woodlands, Texas 77387-4000, telephone number (713) 377-5500.
 
                                        2
<PAGE>   7
 
                                  THE COMPANY
 
     Mitchell Energy & Development Corp. is a holding company which engages,
through its subsidiaries, primarily in (i) the exploration for and production of
oil and gas, gas processing and gas gathering and transmission and (ii) real
estate development, primarily in the Houston-Galveston area. The Company, one of
the nation's largest independent oil and gas producers, has long-lived natural
gas reserves located principally in North and East Central Texas. The Company is
also the developer of The Woodlands, a 25,000-acre mixed-use, master-planned
community located 27 miles north of downtown Houston.
 
     The Company has been engaged in the exploration for and production of oil
and gas for more than 40 years and is one of the largest independent oil and gas
producers in the United States. The Company's reserves are primarily long-lived
natural gas reserves located principally in North and East Central Texas. Over
50% of the Company's natural gas production is sold under long-term contracts at
prices substantially greater than current prices for market-sensitive gas. The
Company owns or has interests in over 60 gas processing plants that extract
natural gas liquids such as ethane, propane and butane from streams of natural
gas. The majority of the plants are small, portable plants that can be easily
and economically relocated to take advantage of new gas streams or moved to
existing facilities to expand production capacity. The Company also owns or has
interests in intrastate pipeline systems in Texas with an aggregate length of
over 4,000 miles. The Company benefits from the integration of its natural gas,
gas processing and pipeline operations, many of which are concentrated in North
Texas.
 
     The Company has substantial real estate operations in the greater Houston
area. The majority of these operations are in The Woodlands, a 25,000-acre
mixed-use, master-planned community located 27 miles north of downtown Houston.
Under development by the Company for over 15 years, The Woodlands has a
population of over 33,000 residents and an employment base of over 10,000 jobs.
The recovery of the Houston economy in recent years has helped to strengthen the
Company's operations in The Woodlands, particularly in the area of residential
lot sales.
 
     The Company was incorporated under the laws of the State of Texas in 1946.
Its principal executive offices are located at 2001 Timberloch Place, The
Woodlands, Texas 77380, and its telephone number there is (713) 377-5500.
References to the "Company" herein include Mitchell Energy & Development Corp.
and its subsidiaries unless the context otherwise indicates.
 
                                USE OF PROCEEDS
 
     Unless otherwise provided in the Prospectus Supplement, the net proceeds
from the sale of the Debt Securities offered by this Prospectus and the
Prospectus Supplement (the "Offered Debt Securities") will be added to the
Company's general funds and used for repayment of debt or other general
corporate purposes. Until so utilized, it is expected that such net proceeds
will be placed in interest bearing time deposits or invested in short-term
marketable securities.
 
                       RATIO OF EARNINGS TO FIXED CHARGES
 
<TABLE>
<CAPTION>
                                                                          NINE MONTHS
                             YEAR ENDED JANUARY 31,                          ENDED
            --------------------------------------------------------
                                                                          OCTOBER 31,
            1988         1989         1990         1991         1992         1992
            ----         ----         ----         ----         ----      ----------- 
           <S>           <C>          <C>          <C>          <C>       <C>
              *            *          1.05x        1.30x        1.45x          *
</TABLE>
 
- ---------------
 
* Earnings were inadequate to cover fixed charges for the years ended January
  31, 1988 and 1989 and for the nine months ended October 31, 1992 by
  $27,841,000, $48,207,000 and $461,000, respectively.
 
     The ratio of earnings to fixed charges has been computed in accordance with
SEC regulations. A statement setting forth the computation of this ratio is
filed as an exhibit to the Registration Statement.
 
                                        3
<PAGE>   8
 
The Company has guaranteed up to $6,000,000 under loan agreements of
unaffiliated, nonprofit institutions. Fixed charges related to outstanding
borrowings under such agreements, which aggregated approximately $170,000 during
the nine months ended October 31, 1992, have been excluded from the computation
of this ratio.
 
                         DESCRIPTION OF DEBT SECURITIES
 
     The Debt Securities will constitute either senior or subordinated debt of
the Company and will be issued, in the case of Debt Securities that will be
senior debt ("Senior Debt Securities"), under a Senior Indenture (the "Senior
Debt Indenture") dated as of January 1, 1993 between the Company and NationsBank
of Texas, National Association, as trustee, and, in the case of Debt Securities
that will be subordinated debt ("Subordinated Debt Securities"), under a
Subordinated Indenture dated as of January 1, 1993 (the "Subordinated Debt
Indenture"), between the Company and NationsBank of Texas, National Association,
as trustee. The Senior Debt Indenture and the Subordinated Debt Indenture are
sometimes hereinafter referred to individually as an "Indenture" and
collectively as the "Indentures." NationsBank of Texas, National Association
(and any successor thereto as trustee under the Indentures) is hereinafter
referred to as the "Trustee." The Indentures are filed as exhibits to the
Registration Statement. The following summaries of certain provisions of the
Indentures and the Debt Securities do not purport to be complete and such
summaries are subject to the detailed provisions of the applicable Indenture to
which reference is hereby made for a full description of such provisions,
including the definition of certain terms used herein. Section references in
parentheses below are to sections in both Indentures unless otherwise indicated.
Wherever particular sections or defined terms of the applicable Indenture are
referred to, such sections or defined terms are incorporated herein by reference
as part of the statement made, and the statement is qualified in its entirety by
such reference. The Indentures are substantially identical, except for certain
covenants of the Company and provisions relating to subordination and
conversion.
 
     The Debt Securities may be issued from time to time in one or more series.
The following description of the Debt Securities sets forth certain general
terms and provisions of the Debt Securities of all series. The particular terms
of each series of Debt Securities offered by any Prospectus Supplement will be
described therein.
 
PROVISIONS APPLICABLE TO BOTH SENIOR AND SUBORDINATED DEBT SECURITIES
 
     General. The Debt Securities will be unsecured senior or subordinated
obligations of the Company and may be issued from time to time in one or more
series. The Indentures do not limit the amount of Debt Securities, Senior
Indebtedness, debentures, notes or other types of indebtedness that may be
issued by the Company or any of its Subsidiaries nor do they restrict
transactions between the Company and its Affiliates, the payment of dividends by
the Company, or the transfer of assets by the Company to its Subsidiaries. The
Company currently conducts substantially all its operations through
Subsidiaries. Consequently, the rights of the Company to receive assets of any
Subsidiary (and thus the ability of holders of Debt Securities to benefit
indirectly from such assets) are subject to the prior claims of creditors of
that Subsidiary. Other than as may be set forth in any Prospectus Supplement,
the Indentures do not and the Debt Securities will not contain any covenants or
other provisions that are intended to afford holders of the Debt Securities
special protection in the event of either a change of control of the Company or
a highly leveraged transaction by the Company.
 
     Reference is made to the Prospectus Supplement for the following terms of
and information relating to the Offered Debt Securities (to the extent such
terms are applicable to such Offered Debt Securities): (i) the title of the
Offered Debt Securities; (ii) classification as Senior Debt Securities or
Subordinated Debt Securities, aggregate principal amount, purchase price and
denomination; (iii) whether the Offered Debt Securities that constitute
Subordinated Debt Securities are convertible into Common Stock and, if so, the
terms and conditions upon which such conversion will be effected including the
initial conversion price or conversion rate and any adjustments thereto in
addition to or
 
                                        4
<PAGE>   9
 
different from those described herein, the conversion period and other
conversion provisions in addition to or in lieu of those described herein; (iv)
the date or dates on which the Offered Debt Securities will mature; (v) the
method by which amounts payable in respect of principal, premium, if any, or
interest, if any, on or upon the redemption of such Offered Debt Securities may
be calculated; (vi) the interest rate or rates (or the method by which such will
be determined), and the dates from which such interest, if any, will accrue;
(vii) the date or dates on which any such interest will be payable; (viii) the
place or places where and the manner in which the principal of, premium, if any,
and interest, if any, on the Offered Debt Securities will be payable and the
place or places where the Offered Debt Securities may be presented for transfer
and, if applicable, conversion; (ix) the obligation, if any, of the Company to
redeem, repay or purchase the Offered Debt Securities pursuant to any sinking
fund or analogous provisions or at the option of a holder thereof or the right,
if any, of the Company to redeem, repay or purchase the Offered Debt Securities
at its option and the period or periods within which, the price or prices at
which and the terms and conditions upon which the Offered Debt Securities will
be redeemed, repaid or purchased pursuant to any such obligation or right
(including the form or method of payment thereof if other than cash); (x) any
terms applicable to the Offered Debt Securities issued at an original issue
discount below their stated principal amount, including the issue price thereof
and the rate or rates at which such original issue discount shall accrue; (xi)
any index used to determine the amount of payments of principal of and any
premium and interest on the Offered Debt Securities; (xii) any applicable United
States federal income tax consequences; and (xiii) any other specific terms of
the Offered Debt Securities, including any additional or different events of
default or remedies or any additional covenants provided with respect to such
Offered Debt Securities, and any terms which may be required by or advisable
under applicable laws or regulations.
 
     Unless otherwise specified in any Prospectus Supplement, the Debt
Securities will be issued only in fully registered form and in denominations of
$1,000 and any integral multiple thereof (Section 2.7). No service charge will
be made for any transfer or exchange of any Debt Securities but the Company may
require payment of a sum sufficient to cover any tax or other governmental
charge payable in connection therewith (Section 2.8).
 
     Debt Securities may bear interest at a fixed rate or a floating rate. Debt
Securities bearing no interest or interest at a rate that at the time of
issuance is below the prevailing market rate may be sold at a discount below
their stated principal amount. Special United States federal income tax
considerations applicable to any such discounted Debt Securities or to certain
Debt Securities issued at par which are treated as having been issued at a
discount for United States federal income tax purposes will be described in the
applicable Prospectus Supplement.
 
     The Indentures are, and the Debt Securities will be, governed by Texas law.
 
     Certain Definitions. The following definitions are applicable to both
Senior and Subordinated Debt Securities (Article One of each Indenture):
 
     "Affiliate" of any specified Person means any other Person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified Person.
 
     "Non-Recourse Indebtedness" means indebtedness where (i) the holders of
such indebtedness agree that they will look solely to the property securing such
indebtedness (and to a Non-Recourse Subsidiary) for payment on or in respect of
such indebtedness, and (ii) no default with respect to such indebtedness
(including any rights which the holders thereof may have to take enforcement
action against a Non-Recourse Subsidiary) would permit (after notice or passage
of time or both), according to the terms thereof, any holder of any Indebtedness
for money borrowed of the Company or any Subsidiary to declare a default on such
Indebtedness for money borrowed or cause the payment thereof to be accelerated
or payable prior to its stated maturity.
 
                                        5
<PAGE>   10
 
     "Non-Recourse Subsidiary" means a Subsidiary or an Affiliate established
for the purpose of acquiring or investing in property securing Non-Recourse
Indebtedness and substantially all of the assets of which consist of such
property.
 
     "Person" means any individual, corporation, limited liability company,
partnership, joint venture, association, joint stock company, trust, estate,
unincorporated organization or government or any agency or political subdivision
thereof.
 
     "Subsidiary" means any corporation of which the Company, or the Company and
one or more Subsidiaries, or any one or more Subsidiaries, directly or
indirectly own voting securities entitling any one or more of the Company and
its Subsidiaries to elect a majority of the directors of such corporation,
either at all times or so long as there is no default or contingency permitting
the holders of any other class or classes of securities to vote for the election
of one or more directors.
 
     "U.S. Government Obligations" means direct obligations of the United States
of America, backed by its full faith and credit.
 
     Global Securities. The Debt Securities of a series may be issued in whole
or in part in the form of one or more global securities ("Global Securities")
that will be deposited with, or on behalf of, a depositary (the "Depositary")
identified in the Prospectus Supplement relating to such series. Global
Securities may be issued only in fully registered form and in either temporary
or permanent form. Unless and until it is exchanged in whole or in part for the
individual Debt Securities represented thereby, a Global Security may not be
transferred except as a whole by the Depositary for such Global Security to its
nominee or by a nominee of such Depositary to such Depositary or another nominee
of such Depositary or by such Depositary or any such nominee to a successor
Depositary or nominee of such successor Depositary (Sections 2.4 and 2.8).
 
     The specific terms of the depositary arrangement with respect to a series
of Debt Securities will be described in the Prospectus Supplement relating to
such series. The Company anticipates that the following provisions will
generally apply to depositary arrangements.
 
     Upon the issuance of a Global Security, the Depositary for such Global
Security or its nominee will credit, on its book-entry registration and transfer
system, the respective principal amounts of the individual Debt Securities
represented by such Global Security to the accounts of persons that have
accounts with such Depositary. Such accounts shall be designated by the dealers,
underwriters or agents with respect to such Debt Securities or by the Company if
such Debt Securities are offered and sold directly by the Company. Ownership of
beneficial interests in a Global Security will be limited to persons that have
accounts with the applicable Depositary ("participants") or persons that may
hold interests through participants. Ownership of beneficial interests in such
Global Security will be shown on, and the transfer of that ownership will be
effected only through, records maintained by the applicable Depositary or its
nominee (with respect to interests of participants) and the records of
participants (with respect to interests of persons other than participants). The
laws of some states require that certain purchasers of securities take physical
delivery of such securities in definitive form. Such limits and such laws may
impair the ability to transfer beneficial interests in a Global Security.
 
     So long as the Depositary for a Global Security or its nominee is the
registered owner of such Global Security, such Depositary or its nominee, as the
case may be, will be considered the sole owner or holder of the Debt Securities
of the series represented by such Global Security for all purposes under the
Indenture governing such Debt Securities. Except as provided below, owners of
beneficial interests in a Global Security will not be entitled to have any of
the individual Debt Securities of the series represented by such Global Security
registered in their names, will not receive or be entitled to receive physical
delivery of any such Debt Securities in definitive form and will not be
considered the owners or holders thereof under the Indenture governing such Debt
Securities.
 
     Payments of principal of, premium, if any, and interest, if any, on
individual Debt Securities represented by a Global Security registered in the
name of a Depositary or its nominee will be made to the Depositary or its
nominee, as the case may be, as the registered owner of the Global Security
 
                                        6
<PAGE>   11
 
representing such Debt Securities. Neither the Company, the Trustee for such
Debt Securities, any paying agent nor the registrar for such Debt Securities
will have any responsibility or liability for any aspect of the records relating
to or payments made on account of beneficial ownership interests of the Global
Security for such Debt Securities or for maintaining, supervising or reviewing
any records relating to such beneficial ownership interests.
 
     The Company expects that the Depositary for a series of Debt Securities or
its nominee, upon receipt of any payment of principal, premium or interest in
respect of a Global Security representing any such Debt Securities, immediately
will credit participants' accounts with payments in amounts proportionate to
their respective beneficial interests in the principal amount of such Global
Security for such Debt Securities as shown on the records of such Depositary or
its nominee. The Company also expects that payments by participants to owners of
beneficial interests in such Global Security held through such participants will
be governed by standing instructions and customary practices, as is now the case
with securities held for the accounts of customers in bearer form or registered
in "street name." Such payments will be the responsibility of such participants.
 
     If the Depositary for a series of Debt Securities is at any time unwilling,
unable or ineligible to continue as depositary and a successor depositary is not
appointed by the Company within 90 days, the Company will issue individual Debt
Securities of such series in exchange for the Global Security representing such
series of Debt Securities. In addition, the Company may at any time and in its
sole discretion, subject to any limitations described in the Prospectus
Supplement relating to such Debt Securities, determine not to have any Debt
Securities of a series represented by one or more Global Securities and, in such
event, will issue individual Debt Securities of such series in exchange for the
Global Security or Securities representing such series of Debt Securities.
Further, if the Company so specifies with respect to the Debt Securities of a
series, an owner of a beneficial interest in a Global Security representing Debt
Securities of such series may, on terms acceptable to the Company and the
Depositary for such Global Security, receive individual Debt Securities of such
series in exchange for such beneficial interests, subject to any limitations
described in the Prospectus Supplement relating to such Debt Securities. In any
such instance, an owner of a beneficial interest in a Global Security will be
entitled to a physical delivery of individual Debt Securities of the series
represented by such Global Security equal in principal amount to such beneficial
interest and to have such Debt Securities registered in its name. Individual
Debt Securities of such series so issued will be issued in denominations, unless
otherwise specified by the Company, of $1,000 and integral multiples thereof.
 
     Events of Default. Unless otherwise specified in the Prospectus Supplement,
an Event of Default is defined under each Indenture with respect to the Debt
Securities of any series issued under such Indenture as being: (a) default in
the payment of any interest with respect to Debt Securities of such series when
due, continued for 30 days; (b) default in the payment of principal or premium,
if any, with respect to Debt Securities of such series when due; (c) default in
the payment or satisfaction of any sinking fund or other purchase obligation
with respect to Debt Securities of such series when due; (d) default in the
performance of any other covenant of the Company applicable to Debt Securities
of such series, continued for 60 days after written notice by the Trustee or the
holders of at least 25% in aggregate principal amount of the Debt Securities of
such series then outstanding (or, in the case of any series of Debt Securities
originally issued at a discount from their stated principal amount, at least 25%
of the amount of principal thereof that would be due and payable on such date of
determination in the event of an acceleration of the maturity of such series on
such date); (e) certain events of bankruptcy, insolvency or reorganization; and
(f) default under any instrument under which there may be issued, or by which
there may be secured or evidenced, any Indebtedness (as defined in such
Indenture) for money borrowed (other than Non-Recourse Indebtedness) of the
Company or (in the case of the Senior Debt Indenture) any Subsidiary resulting
in the acceleration of such Indebtedness, or any default in payment of any such
Indebtedness (after expiration of any applicable grace periods and presentation
of any debt instruments, if required), if the total of all such Indebtedness
which has been so accelerated and with respect to which there has been such a
default in payment shall exceed $25,000,000 and there shall have been a failure
to obtain rescission or annulment of all such
 
                                        7
<PAGE>   12
 
accelerations or to discharge all such defaulted Indebtedness within 10 days
after written notice of the type specified in the foregoing clause (d) (Section
5.1). If any Event of Default shall occur and be continuing, the Trustee or the
holders of not less than 25% in aggregate principal amount of the Debt
Securities of such series then outstanding (or, in the case of any series of
Debt Securities originally issued at a discount from their stated principal
amount, not less than 25% of the amount of principal thereof that would be due
and payable on such date of determination in the event of an acceleration of the
maturity of such series on such date), by notice in writing to the Company (and
to the Trustee, if given by the holders), may declare the Debt Securities of
such series due and payable immediately, but the holders of a majority in
aggregate principal amount of the Debt Securities of such series then
outstanding (or, in the case of any series of Debt Securities originally issued
at a discount from their stated principal amount, a majority of the amount of
principal thereof that would be due and payable on such date of determination in
the event of an acceleration of the maturity of such series on such date), by
notice in writing to the Company and the Trustee, may rescind such declaration
if all defaults under such Indenture are cured or waived (Section 5.1).
 
     Each Indenture provides that no holder of any series of Debt Securities
then outstanding may institute any suit, action or proceeding with respect to,
or otherwise attempt to enforce, such Indenture, unless (i) such holder shall
have given to the Trustee written notice of default and of the continuance
thereof, (ii) the holders of not less than 25% in aggregate principal amount of
such series of Debt Securities then outstanding (or, in the case of any series
of Debt Securities originally issued at a discount from their stated principal
amount, not less than 25% of the amount of principal thereof that would be due
and payable on such date of determination in the event of an acceleration of the
maturity of such series on such date) shall have made written request to the
Trustee to institute such suit, action or proceeding and shall have offered to
the Trustee such reasonable indemnity as it may require with respect thereto and
(iii) the Trustee for 60 days after its receipt of such notice, request and
offer of indemnity, shall have neglected or refused to institute any such
action, suit or proceeding; provided that, subject to the subordination
provisions applicable to the Subordinated Debt Securities, the right of any
holder of any Debt Security to receive payment of the principal of, premium, if
any, and interest, if any, on such Debt Security, on or after the respective due
dates, or, with respect to any convertible Subordinated Debt Security, the right
to convert such Subordinated Debt Security, or to institute suit for the
enforcement of any such payment or right to convert shall not be impaired or
affected without the consent of such holder (Section 5.4). The holders of a
majority in aggregate principal amount of the Debt Securities of such series
then outstanding (or, in the case of any series of Debt Securities originally
issued at a discount from their stated principal amount, a majority of the
amount of principal thereof that would be due and payable on such date of
determination in the event of an acceleration of the maturity of such series on
such date) may 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, provided that such direction shall not be in conflict
with any rule of law or the Indenture or involve the Trustee in personal
liability (Section 5.7).
 
     The Company is required to furnish to the Trustee annually a statement as
to the fulfillment by the Company of all of its obligations under each Indenture
(Section 4.3).
 
     Consolidation, Merger, Sale, Etc. Each Indenture provides that the Company
may consolidate or merge with or into any other corporation, and may sell,
lease, exchange or otherwise dispose of all or substantially all of its property
and assets to any other corporation, provided that in any such case (i)
immediately after such transaction the Company will not be in default under such
Indenture, (ii) the corporation (if other than the Company) formed by or
surviving any such consolidation or merger, or to which such sale, lease,
exchange or other disposition shall have been made, shall be a corporation
organized under the laws of the United States of America, any state thereof or
the District of Columbia, and (iii) the corporation (if other than the Company)
formed by such consolidation, or into which the Company shall have been merged,
or the corporation which shall have acquired or leased such property and assets,
shall assume, by a supplemental indenture, the Company's obligations under such
Indenture (Section 9.1). In case of any such consolidation, merger, sale, lease,
exchange or
 
                                        8
<PAGE>   13
 
other disposition and upon any such assumption by the successor corporation,
such successor corporation shall succeed to and be substituted for the Company,
with the same effect as if it had been named in such Indenture as the Company,
and the Company shall be relieved of any further obligation under such Indenture
and any Debt Securities issued thereunder (Section 9.2 of the Subordinated Debt
Indenture and Section 9.3 of the Senior Debt Indenture).
 
     Discharge and Defeasance. The Company may discharge or defease its
obligations with respect to each series of Debt Securities as set forth below
(Article Ten).
 
     The Company may discharge all of its obligations (except those set forth
below) to holders of any series of Debt Securities issued under either indenture
which have not already been delivered to the Trustee for cancellation and which
either have become due and payable or are by their terms due and payable within
one year (or are to be called for redemption within one year) by depositing with
the Trustee cash or U.S. Government Obligations, or a combination thereof, as
trust funds in an amount certified to be sufficient to pay when due the
principal of, premium, if any, and interest, if any, on all outstanding Debt
Securities of such series and to make any mandatory sinking fund payments
thereon when due (Section 10.1(B)).
 
     Unless otherwise provided in the applicable Prospectus Supplement, the
Company may also discharge at any time all of its obligations (except those set
forth below) to holders of any series of Debt Securities issued under either
Indenture (other than convertible Subordinated Debt Securities) ("defeasance")
only if, among other things: (i) the Company irrevocably deposits with the
Trustee cash or U.S. Government Obligations, or a combination thereof, as trust
funds in an amount certified to be sufficient to pay when due the principal of,
premium, if any, and interest, if any, on all outstanding Debt Securities of
such series and to make any mandatory sinking fund payments thereon when due and
such funds have been so deposited for 91 days; (ii) such defeasance will not
result in a breach or violation of, or cause a default under, any agreement or
instrument to which the Company is a party or by which it is bound; and (iii)
the Company delivers to the Trustee an opinion of counsel to the effect that the
holders of such series of Debt Securities will not recognize income, gain or
loss for United States federal income tax purposes as a result of such
defeasance and that defeasance will not otherwise alter the United States
federal income tax treatment of such holders' principal and interest payments on
such series of Debt Securities. Such opinion of counsel must be based on a
ruling of the Internal Revenue Service or a change in United States federal
income tax law occurring after the date of the Indenture relating to the Debt
Securities of such series (Section 10.1(C)).
 
     In the event of such discharge and defeasance of a series of Debt
Securities, the holders thereof would be entitled to look only to such trust
funds for payment of the principal of and any premium and interest on such Debt
Securities.
 
     Notwithstanding the foregoing, no discharge or defeasance described above
shall affect the following obligations to or rights of the holders of any series
of Debt Securities: (i) rights of registration of transfer and exchange of Debt
Securities of such series; (ii) rights of substitution of mutilated, defaced,
destroyed, lost or stolen Debt Securities of such series; (iii) rights of
holders of Debt Securities of such series to receive payments of principal
thereof and premium, if any, and interest, if any, thereon, when due and to
receive mandatory sinking fund payments thereon when due, if any, from the trust
funds held by the Trustee; (iv) the rights, obligations, duties and immunities
of the Trustee; (v) the rights of holders of Debt Securities of such series as
beneficiaries with respect to property deposited with the Trustee payable to all
or any of them; (vi) the obligations of the Company to maintain an office or
agency in respect of Debt Securities of such series, and (vii), if applicable,
the obligations of the Company with respect to the conversion of Debt Securities
of such series into Common Stock.
 
     Modification of the Indenture. Each Indenture provides that the Company and
the Trustee may enter into supplemental indentures without the consent of the
holders of the Debt Securities to (a) evidence the assumption by a successor
corporation of the obligations of the Company under such Indenture, (b) add
covenants or new events of default for the protection of the holders of such
Debt
 
                                        9
<PAGE>   14
 
Securities, (c) cure any ambiguity or correct any inconsistency in the
Indenture, (d) establish the form and terms of such Debt Securities, (e)
evidence the acceptance of appointment by a successor trustee, (f) amend the
Indenture in any other manner which the Company may deem necessary or desirable
and which will not adversely affect the interests of the holders of Debt
Securities issued thereunder or (g), in the case of Senior Debt Securities,
secure such Debt Securities (Section 8.1).
 
     Each Indenture also contains provisions permitting the Company and the
Trustee, with the consent of the holders of not less than a majority in
aggregate principal amount of Debt Securities of each series then outstanding
(or, in the case of any series of Debt Securities originally issued at a
discount from their stated principal amount, not less than a majority of the
amount of principal thereof that would be due and payable on such date of
determination in the event of an acceleration of the maturity of such series on
such date) and affected, to add any provisions to, or change in any manner or
eliminate any of the provisions of, such Indenture or modify in any manner the
rights of the holders of the Debt Securities of such series; provided that the
Company and the Trustee may not, without the consent of the holder of each
outstanding Debt Security affected thereby, (a) extend the stated maturity of
the principal of any Debt Security, reduce the principal amount thereof, reduce
the rate or extend the time of payment of any interest thereon, reduce or alter
the method of computation of any amount payable on redemption, repayment or
purchase thereof, reduce the portion of the principal amount of any Original
Issue Discount Security (as defined in the Indentures) payable upon acceleration
or provable in bankruptcy, change the coin or currency in which principal and
interest, if any, are payable, impair or affect the right to institute suit for
the enforcement of any payment, repayment or purchase thereof or, if applicable,
adversely affect the right to convert Debt Securities or any right of repayment
at the option of the holder or (b) reduce the percentage in aggregate principal
amount of Debt Securities of any series issued under such Indenture, the consent
of the holders of which is required for any such modification (Section 8.2).
 
     The Subordinated Debt Indenture may not be amended to alter the
subordination of any outstanding Subordinated Debt Securities without the
consent of each holder of Senior Indebtedness (as defined below under
"-- Provisions Applicable Solely to Subordinated Debt Securities") then
outstanding that would be adversely affected thereby (Section 8.6 of the
Subordinated Debt Indenture).
 
PROVISIONS APPLICABLE SOLELY TO SENIOR DEBT SECURITIES
 
     General. Senior Debt Securities will be issued under the Senior Debt
Indenture, and each series will rank pari passu as to the right of payment of
principal, premium, if any, and interest, if any, with each other series and
with all other Senior Debt (as defined below) of the Company.
 
     Certain Definitions. For purposes of the following discussion, the
following definitions, together with those under "Provisions Applicable to Both
Senior and Subordinated Debt Securities -- Certain Definitions," are applicable
(Article One of the Senior Debt Indenture).
 
     "Assets" means any property of the Company or a Subsidiary used in
businesses in which the Company and its Subsidiaries are engaged at the date of
the Senior Debt Indenture.
 
     "Capitalized Lease" means any lease of property where the obligations of
the lessee thereunder are required to be classified and accounted for as a
capitalized lease on a balance sheet of such lessee under generally accepted
accounting principles.
 
     "Indebtedness" means (i) any indebtedness of the Company or any Subsidiary
for money borrowed or for the deferred purchase price of property or services
including obligations as lessee under Capitalized Leases, (ii) any such
indebtedness or obligation of others secured by any lien on the assets of the
Company or any Subsidiary, and (iii) any such indebtedness or obligation of
others which the Company or any Subsidiary has directly or indirectly
guaranteed, endorsed with recourse (otherwise than for collection, deposit or
other similar transactions in the ordinary course of business), agreed to
purchase or repurchase or in respect of which the Company or any Subsidiary has
 
                                       10
<PAGE>   15
 
agreed contingently to supply or advance funds. Indebtedness shall not include
Non-Recourse Indebtedness of the Company, its Subsidiaries or its Affiliates.
 
     "Senior Debt" means Indebtedness which is not (i) Indebtedness of the
Company to any Subsidiary and (ii) Indebtedness of the Company which by its
terms is subordinate or junior in any respect to any other Indebtedness or other
obligation of the Company.
 
     "Stock" means any capital stock of any corporation or any partnership
interest in any partnership (limited or general), any joint venture interest in
any joint venture, and any similar interest.
 
     Limitation on Liens. The Company may not, and may not permit any Subsidiary
to, create or incur any mortgage, pledge or lien as to assets, properties or
systems owned by it other than: (a) liens for taxes not yet delinquent or being
contested in good faith and for which adequate reserves have been established;
(b) mechanics', workmen's, materialmen's or similar liens arising in the
ordinary course of business; (c) minor imperfections of title that do not impair
the value of property in its intended use; (d) any mortgage, encumbrance or lien
on properties acquired after the date of the Senior Debt Indenture that are
created at or within one year of acquisition of such property and which secure
only Indebtedness not in excess of the fair market value of such property, the
assumption of any mortgage, encumbrance or lien upon property acquired that
existed at the time of such acquisition or the acquisition of property subject
to any mortgage, encumbrance or lien; (e) deposits or pledges to secure
obligations under worker's compensation, social security or similar laws or
under unemployment insurance; (f) mortgages on particular assets, properties or
systems (or pledges of Stock of any Person having a beneficial interest in any
such assets, properties or systems) to secure all or part of the cost incurred
in the ordinary course of business of exploration, drilling, construction,
development or operation thereof or the costs of improvements thereto; (g)
mortgages on fractionation facilities, processing or petrochemical plants,
pumping stations, pipelines or other pipeline facilities; (h) mortgages on
residential, commercial, industrial and investment real estate incurred in the
ordinary course of business; (i) liens created by or existing from any
litigation or legal proceedings that are being contested in good faith by
appropriate proceedings or the payment of which is covered in full (subject to
customary deductibles) by insurance; (j) liens granted to any bank or other
institution on the payments to be made by such institution to the Company or a
Subsidiary pursuant to any interest rate swap arrangement between the Company or
such Subsidiary and such institution; (k) extensions and renewals of permitted
liens; (l) liens incurred in the ordinary course of business that are not
material to the business or financial condition of the Company and its
Subsidiaries and which do not secure Indebtedness exceeding $25,000,000 in the
aggregate; and (m) any lien resulting from the deposit of moneys or evidences of
indebtedness in trust for the purpose of defeasing Indebtedness of the Company
or any Subsidiary. The following types of transactions shall not be deemed to
violate the foregoing limitation on liens: (i) mortgages in favor of
governmental bodies to secure partial, progress, advance or other payments
pursuant to any contract or statute or to secure Indebtedness incurred to
finance the purchase price or cost of constructing or improving property subject
to such mortgages; and (ii) the sale or other transfer of oil, gas, coal or
other minerals in place for a period of time until, or in an amount such that,
the purchaser will realize therefrom a specified amount of money (however
determined) or a specified amount of such minerals, or any other interest in
property of the character commonly referred to as a "production payment"
(Section 3.6 of the Senior Debt Indenture).
 
     Limitations on Subsidiary Dividend Restrictions. The Company may not, and
may not permit any Subsidiary (other than a Non-Recourse Subsidiary) to, create
or otherwise cause or permit to exist or become effective any consensual
encumbrance or restriction on the ability of such Subsidiary to pay dividends or
make any other distributions on its capital stock unless the encumbrance or
restriction is (i) in effect at the time of acquisition of such Subsidiary and
any Indebtedness of such Subsidiary is non-recourse to the Company or any other
Subsidiary or (ii) on terms and conditions no less favorable than terms and
conditions pursuant to an agreement in effect on the date of the Senior Debt
Indenture (Section 3.7 of the Senior Debt Indenture).
 
                                       11
<PAGE>   16
 
     The Company is a holding company for both energy and real estate
subsidiaries. The energy subsidiary's bank revolving credit agreement limits
cash advances and dividend payments by the energy subsidiary to the holding
company. At October 31, 1992, the energy subsidiary was able to transfer by way
of dividends and cash advances a total of approximately $207 million to the
holding company under this agreement and, in addition, could repay advances from
the holding company totaling $257 million at that date. The real estate
subsidiary has a bank revolving credit facility that is guaranteed by the
holding company. As of October 31, 1992, under the terms of this agreement, the
real estate subsidiary was permitted to transfer approximately $313 million to
the holding company by way of dividends and repayment of subordinated
indebtedness, subject to compliance with certain other covenants. Advances to
the holding company by the real estate subsidiary are not directly restricted.
 
     Limitations on Sale and Leaseback Transactions. The Company may not, and
may not permit any Subsidiary to, enter into any arrangement providing for the
leasing by the Company or any Subsidiary of any property (except for leases for
a term of not more than three years) if the property has been or is to be sold
or transferred by the Company or such Subsidiary to the lessor in contemplation
of such leasing unless (i) the Company would be permitted under the Senior Debt
Indenture to create a lien on the property or (ii) the proceeds from such sale
or transfer are applied to the payment or defeasance of Senior Debt of the
Company or its Subsidiaries (including, without limitation, any Senior Debt
Securities) or are used within 12 months to purchase, acquire or invest in
Assets (Section 3.8 of the Senior Debt Indenture).
 
     Senior Debt Securities to be Secured in Certain Events. If, upon any
consolidation or merger of the Company, or any sale, lease, exchange or other
disposition of all or of substantially all of its property, permitted by the
Senior Debt Indenture, any property of the Company or a Subsidiary would become
subject to any mortgage or lien (other than those permitted by Section 3.6 of
the Senior Debt Indenture), then the Company, at or prior to the consummation of
any such transaction, shall by supplemental indenture secure all Senior Debt
Securities then outstanding equally and ratably with (or prior to) all
Indebtedness secured thereby (Section 9.2 of the Senior Debt Indenture).
 
PROVISIONS APPLICABLE SOLELY TO SUBORDINATED DEBT SECURITIES
 
     Subordination. The Subordinated Debt Securities will be subordinate and
junior in right of payment, to the extent set forth in the Subordinated Debt
Indenture, to all Senior Indebtedness (as defined below) of the Company. If the
Company should default in the payment of any principal of or premium or interest
on any Senior Indebtedness when the same becomes due and payable, whether at
maturity or at a date fixed for prepayment or by declaration of acceleration or
otherwise, then, upon written notice of such default to the Company by the
holders of such Senior Indebtedness or any trustee therefor and subject to
certain rights of the Company to dispute such default and subject to proper
notification of the Trustee, unless and until such default shall have been cured
or waived or shall have ceased to exist, no direct or indirect payment (in cash,
property, securities, by set-off or otherwise) will be made or agreed to be made
for principal of, premium, if any, or interest, if any, on the Subordinated Debt
Securities, or in respect of any redemption, retirement, purchase or other
acquisition of the Subordinated Debt Securities other than those made in capital
stock of the Company (or cash in lieu of fractional shares thereof) pursuant to
any conversion right of the Subordinated Debt Securities or otherwise made in
capital stock of the Company (Sections 14.1, 14.4 and 14.5 of the Subordinated
Debt Indenture).
 
     "Senior Indebtedness" is defined in Article One of the Subordinated Debt
Indenture as Indebtedness (as defined below) of the Company outstanding at any
time except (a) any Indebtedness as to which, by the terms of the instrument
creating or evidencing the same, it is provided that such Indebtedness is not
senior in right of payment to the Subordinated Debt Securities, (b) the
Subordinated Debt Securities, (c) any Indebtedness of the Company to a
wholly-owned Subsidiary of the Company, (d) interest accruing after the filing
of a petition initiating certain bankruptcy or insolvency proceedings unless
such interest is an allowed claim enforceable against the Company in a
 
                                       12
<PAGE>   17
 
proceeding under federal or state bankruptcy laws and (e) trade accounts
payable. "Indebtedness" is defined in Article One of the Subordinated Debt
Indenture as, with respect to any Person, (a)(i) the principal of and premium
and interest, if any, on indebtedness for money borrowed of such Person
evidenced by bonds, notes, debentures or similar obligations, including any
guaranty by such Person of any indebtedness for money borrowed of any other
Person, whether any such indebtedness or guaranty is outstanding on the date of
the Subordinated Debt Indenture or is thereafter created, assumed or incurred,
(ii) the principal of and premium and interest, if any, on indebtedness for
money borrowed, incurred, assumed or guaranteed by such Person in connection
with the acquisition by it or any of its subsidiaries of any other businesses,
properties or other assets and (iii) lease obligations which such Person
capitalizes in accordance with Statement of Financial Accounting Standards No.
13 promulgated by the Financial Accounting Standards Board or such other
generally accepted accounting principles as may be from time to time in effect,
(b) any other indebtedness of such Person, including any indebtedness
representing the balance deferred and unpaid of the purchase price of any
property or interest therein, including any such balance that constitutes a
trade account payable, and any guaranty, endorsement or other contingent
obligation of such Person in respect of any indebtedness of another, which is
outstanding on the date of the Subordinated Debt Indenture or is thereafter
created, assumed or incurred by such Person and (c) any amendments,
modifications, refundings, renewals or extensions of any indebtedness or
obligation described as Indebtedness in clause (a) or (b) above.
 
     If (i) without the consent of the Company a court shall enter (A) an order
for relief with respect to the Company under the United States federal
bankruptcy laws, (B) a judgment, order or decree adjudging the Company a
bankrupt or insolvent, or (C) an order for relief for reorganization,
arrangement, adjustment or composition of or in respect of the Company under the
United States federal bankruptcy laws or state insolvency laws or (ii) the
Company shall institute proceedings for the entry of an order for relief with
respect to the Company under the United States federal bankruptcy laws or for an
adjudication of insolvency, or shall consent to the institution of bankruptcy or
insolvency proceedings against it, or shall file a petition seeking, or seek or
consent to reorganization, arrangement, composition or similar relief under any
applicable law, or shall consent to the filing of such petition or to the
appointment of a receiver, custodian, liquidator, assignee, trustee,
sequestrator or similar official in respect of the Company or of substantially
all of its property, or the Company shall make a general assignment for the
benefit of creditors, then all Senior Indebtedness (including any interest
thereon accruing after the commencement of any such proceedings) will first be
paid in full before any payment or distribution, whether in cash, securities or
other property, is made on account of the principal of, premium, if any, or
interest, if any, on the Subordinated Debt Securities. In such event, any
payment or distribution on account of the principal of, premium, if any, or
interest, if any, on the Subordinated Debt Securities, whether in cash,
securities or other property (other than securities of the Company or any other
corporation provided for by a plan of reorganization or readjustment the payment
of which is subordinate, at least to the extent provided in the subordination
provisions with respect to the Subordinated Debt Securities, to the payment of
all Senior Indebtedness then outstanding and to any securities issued in respect
thereof under any such plan of reorganization or readjustment), which would
otherwise (but for the subordination provisions) be payable or deliverable in
respect of the Subordinated Debt Securities will be paid or delivered directly
to the holders of Senior Indebtedness in accordance with the priorities then
existing among such holders until all Senior Indebtedness (including any
interest thereon accruing after the commencement of any such proceedings) has
been paid in full. If any payment or distribution on account of the principal
of, premium, if any, or interest, if any, on the Subordinated Debt Securities of
any character, whether in cash, securities or other property (other than
securities of the Company or any other corporation provided for by a plan of
reorganization or readjustment the payment of which is subordinate, at least to
the extent provided in the subordination provisions with respect to the
Subordinated Debt Securities, to the payment of all Senior Indebtedness then
outstanding and to any securities issued in respect thereof under any such plan
of reorganization or readjustment), shall be received by the Trustee or any
holder of any Subordinated Debt Securities in contravention of any of the terms
of the
 
                                       13
<PAGE>   18
 
Subordinated Debt Indenture, such payment or distribution will be received in
trust for the benefit of, and will be paid over or delivered and transferred to,
the holders of the Senior Indebtedness then outstanding in accordance with the
priorities then existing among such holders for application to the payment of
all Senior Indebtedness remaining unpaid, to the extent necessary to pay all
such Senior Indebtedness in full. In the event of any such proceeding, after
payment in full of all sums owing with respect to Senior Indebtedness, the
holders of Subordinated Debt Securities, together with the holders of any
obligations of the Company ranking on a parity with the Subordinated Debt
Securities, will be entitled to be repaid from the remaining assets of the
Company the amounts at that time due and owing on account of unpaid principal of
or any premium or any interest on the Subordinated Debt Securities and such
other obligations before any payment or other distribution, whether in cash,
property or otherwise, shall be made on account of any capital stock or
obligations of the Company ranking junior to the Subordinated Debt Securities
and such other obligations (Section 14.1 of the Subordinated Debt Indenture).
 
     By reason of such subordination, in the event of the insolvency of the
Company, holders of Senior Indebtedness and holders of other obligations of the
Company that are not subordinated to Senior Indebtedness may receive more,
ratably, than holders of the Subordinated Debt Securities. Such subordination
will not prevent the occurrence of an Event of Default or limit the right of
acceleration in respect of the Subordinated Debt Securities.
 
     Conversion. The Subordinated Debt Indenture may provide for a right of
conversion of Subordinated Debt Securities into Common Stock (or cash in lieu
thereof) (Sections 2.3 and 14.1 of the Subordinated Debt Indenture). The
following provisions will apply to Debt Securities that are convertible
Subordinated Debt Securities unless otherwise provided in the Prospectus
Supplement for such Debt Securities.
 
     The holder of any convertible Subordinated Debt Securities will have the
right exercisable at any time prior to maturity, unless previously redeemed or
otherwise purchased by the Company, to convert such Subordinated Debt Securities
into shares of Common Stock at the conversion price or conversion rate set forth
in the Prospectus Supplement, subject to adjustment (Section 13.2 of the
Subordinated Debt Indenture). The holder of convertible Subordinated Debt
Securities may convert any portion thereof which is $1,000 in principal amount
or any integral multiple thereof (Section 13.2 of the Subordinated Debt
Indenture).
 
     In certain events, the conversion price or conversion rate will be subject
to adjustment as set forth in the Subordinated Debt Indenture. Such events
include the issuance of shares of Common Stock of the Company as a dividend or
distribution on the Common Stock; subdivisions, combinations and
reclassifications of the Common Stock; the issuance to all holders of Common
Stock of rights or warrants entitling the holders thereof (for a period not
exceeding 45 days) to subscribe for or purchase shares of Common Stock at a
price per share less than the then current market price per share of Common
Stock (as determined pursuant to the Subordinated Debt Indenture); and the
distribution to substantially all holders of Common Stock of evidences of
indebtedness, equity securities (including equity interests in the Company's
Subsidiaries) other than Common Stock, or other assets (excluding cash dividends
paid from surplus) or subscription rights or warrants (other than those referred
to above). No adjustment of the conversion price or conversion rate will be
required unless an adjustment would require a cumulative increase or decrease of
at least 1% in such price or rate (Section 13.4 of the Subordinated Debt
Indenture). The Company has been advised by its counsel, Vinson & Elkins L.L.P.,
that certain adjustments in the conversion price or conversion rate in
accordance with the foregoing provisions may result in constructive
distributions to either holders of the Subordinated Debt Securities or holders
of Common Stock which would be taxable pursuant to Treasury Regulations issued
under section 305 of the Internal Revenue Code of 1986. The amount of any such
taxable constructive distribution will be the fair market value of the Common
Stock which is treated as having been constructively received, such value being
determined as of the time the adjustment resulting in the constructive
distribution is made.
 
                                       14
<PAGE>   19
 
     Fractional shares of Common Stock will not be issued upon conversion, but,
in lieu thereof, the Company will pay a cash adjustment based on the then
current market price for the Common Stock (Section 13.3 of the Subordinated Debt
Indenture). Upon conversion, no adjustments will be made for accrued interest or
dividends, and therefore convertible Subordinated Debt Securities surrendered
for conversion between the record date for an interest payment and the interest
payment date (except convertible Subordinated Debt Securities called for
redemption on a redemption date during such period) must be accompanied by
payment of an amount equal to the interest thereon which the registered holder
is to receive (Sections 13.4 and 13.2 of the Subordinated Debt Indenture).
 
     In the case of any consolidation or merger of the Company (with certain
exceptions) or any sale, lease, exchange or other disposition of all or
substantially all the property and assets of the Company, the holder of
convertible Subordinated Debt Securities, after the consolidation, merger, sale,
lease, exchange or other disposition, will have the right to convert such
convertible Subordinated Debt Securities only into the kind and amount of
securities, cash and other property which the holder would have been entitled to
receive upon or in connection with such consolidation, merger, sale, lease,
exchange or other disposition, if the holder had held the Common Stock issuable
upon conversion of such convertible Subordinated Debt Securities immediately
prior to such consolidation, merger, sale, lease, exchange or other disposition
(Section 13.5 of the Subordinated Debt Indenture).
 
CONCERNING THE TRUSTEE
 
     Pursuant to the Trust Indenture Act of 1939, as amended, should a default
occur with respect to either the Senior Debt Securities or the Subordinated Debt
Securities, NationsBank of Texas, National Association would be required to
resign as Trustee under one of the Indentures within 90 days of such default
unless such default were cured, duly waived or otherwise eliminated.
 
     NationsBank of Texas, National Association, the Trustee under both
Indentures, is a depositary for funds of, makes loans to and performs other
services for the Company in the normal course of business.
 
                              PLAN OF DISTRIBUTION
 
GENERAL
 
     The Company may sell Debt Securities to or through underwriters or dealers,
and also may sell Debt Securities directly to one or more other purchasers or
through agents. The Prospectus Supplement sets forth the names of any
underwriters or agents involved in the sale of the Offered Debt Securities and
any applicable commissions or discounts.
 
     Underwriters, dealers or agents may offer and sell the Offered Debt
Securities at a fixed price or prices, which may be changed, or from time to
time at market prices prevailing at the time of sale, at prices related to such
prevailing market prices or at negotiated prices. In connection with the sale of
the Debt Securities, underwriters or agents may be deemed to have received
compensation from the Company in the form of underwriting discounts or
commissions and may also receive commissions from purchasers of the Debt
Securities for whom they may act as agent. Underwriters or agents may sell the
Debt Securities to or through dealers, and such dealers may receive compensation
in the form of discounts, concessions or commissions from the underwriters or
commissions from the purchasers for whom they may act as agent.
 
     The Debt Securities, when first issued, will have no established trading
market. Any underwriters or agents to or through whom Debt Securities are sold
by the Company for public offering and sale may make a market in such Debt
Securities, but such underwriters or agents will not be obligated to do so and
may discontinue any market making at any time without notice. No assurance can
be given as to the liquidity of the trading market for any Debt Securities.
 
     Any underwriters, dealers or agents participating in the distribution of
the Debt Securities may be deemed to be underwriters, and any discounts and
commissions received by them and any profit
 
                                       15
<PAGE>   20
 
realized by them on resale of the Debt Securities may be deemed to be
underwriting discounts and commissions under the 1933 Act. Underwriters, dealers
or agents may be entitled, under agreements entered into with the Company, to
indemnification against or contribution toward certain civil liabilities,
including liabilities under the 1933 Act.
 
DELAYED DELIVERY ARRANGEMENTS
 
     If so indicated in the Prospectus Supplement, the Company will authorize
underwriters or other persons acting as the Company's agents to solicit offers
by certain institutions to purchase Debt Securities from the Company pursuant to
contracts providing for payment and delivery on a future date. Institutions with
which such contracts may be made include commercial and savings banks, insurance
companies, pension funds, investment companies, educational and charitable
institutions and others, but in all cases will be subject to the approval of the
Company. The obligations of any purchaser under any such contract will be
subject to the condition that the purchase of the Debt Securities shall not at
the time of delivery be prohibited under the laws of the jurisdiction to which
such purchaser is subject. The underwriters and such agents will not have any
responsibility in respect of the validity or performance of such contracts.
 
                                 LEGAL MATTERS
 
     The legality of the Debt Securities, as well as certain tax matters in
connection therewith, are being passed upon for the Company by Vinson & Elkins
L.L.P., Houston, Texas. Certain legal matters in connection with the Debt
Securities may be passed upon for any underwriters, dealers or agents by
Fulbright & Jaworski L.L.P., Houston, Texas.
 
                                    EXPERTS
 
     The financial statements and schedules incorporated by reference in this
Prospectus and elsewhere in the Registration Statement to the extent and for the
periods indicated in their reports have been audited by Arthur Andersen & Co.,
independent public accountants, and are incorporated by reference herein in
reliance upon the authority of said firm as experts in accounting and auditing
in giving said reports.
 
                                       16
<PAGE>   21
 
- ------------------------------------------------------
- ------------------------------------------------------
 
     NO DEALER, SALESMAN OR OTHER INDIVIDUAL HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATION NOT CONTAINED IN THIS PROSPECTUS
SUPPLEMENT OR THE ACCOMPANYING PROSPECTUS AND, IF GIVEN OR MADE, SUCH
INFORMATION OR REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED
BY THE COMPANY OR ANY UNDERWRITER. NEITHER THIS PROSPECTUS SUPPLEMENT NOR THE
ACCOMPANYING PROSPECTUS CONSTITUTES AN OFFER TO SELL OR A SOLICITATION OF AN
OFFER TO BUY ANY OF THE SECURITIES OFFERED HEREBY IN ANY JURISDICTION TO ANY
PERSON TO WHOM IT IS UNLAWFUL TO MAKE SUCH OFFER IN SUCH JURISDICTION. NEITHER
THE DELIVERY OF THIS PROSPECTUS SUPPLEMENT OR THE ACCOMPANYING PROSPECTUS NOR
ANY SALE MADE HEREUNDER SHALL, UNDER ANY CIRCUMSTANCES, CREATE ANY IMPLICATION
THAT THE INFORMATION HEREIN IS CORRECT AS OF ANY TIME SUBSEQUENT TO THE DATE
HEREOF OR THAT THERE HAS BEEN NO CHANGE IN THE AFFAIRS OF THE COMPANY SINCE SUCH
DATE.
            ---------------------
              TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
            PROSPECTUS SUPPLEMENT
                                          PAGE
<S>                                       <C>

Use of Proceeds........................    S-2
Description of Notes...................    S-2
Underwriting...........................    S-3
Experts................................    S-4
                 PROSPECTUS
Available Information..................      2
Incorporation of Certain Documents by
  Reference............................      2
The Company............................      3
Use of Proceeds........................      3
Ratio of Earnings to Fixed Charges.....      3
Description of Debt Securities.........      4
Plan of Distribution...................     15
Legal Matters..........................     16
Experts................................     16
</TABLE>
 
                $100,000,000

                   [LOGO]

             MITCHELL ENERGY &

              DEVELOPMENT CORP.

         5.10% SENIOR NOTES DUE 1997

         ---------------------------
            PROSPECTUS SUPPLEMENT
         ---------------------------

             MERRILL LYNCH & CO.

          CITICORP SECURITIES, INC.

         J.P. MORGAN SECURITIES INC.

             UBS SECURITIES INC.

               JANUARY 20, 1994

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


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