APACHE CORP
S-3, 2000-03-15
CRUDE PETROLEUM & NATURAL GAS
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<PAGE>   1

     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MARCH 15, 2000
                                             REGISTRATION NO. 333-
                                                                333-         -01
                                                                333-         -02
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                           -------------------------
                                    FORM S-3
            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                           -------------------------
                               APACHE CORPORATION
                                 APACHE TRUST I
                                APACHE TRUST II
  (Exact name of each registrant as specified in its charter or certificate of
                                     trust)

<TABLE>
<S>                                                          <C>
                          DELAWARE                                                  NO. 41-0747868
                          DELAWARE                                               APPLICATION PENDING
                          DELAWARE                                               APPLICATION PENDING
          (State of incorporation or organization)                     (I.R.S. Employer Identification Numbers)
                    ONE POST OAK CENTRAL                                          Z. S. KOBIASHVILI
             2000 POST OAK BOULEVARD, SUITE 100                           2000 POST OAK BOULEVARD, SUITE 100
                 HOUSTON, TEXAS 77056-4400                                    HOUSTON, TEXAS 77056-4400
                       (713) 296-6000                                               (713) 296-6000
             (Address, including zip code, and                         (Name, address, including zip code, and
         telephone number, including area code, of                      telephone number, including area code,
              registrant's executive offices)                                   of agent for service)
</TABLE>

                           -------------------------
                                   Copies to:

<TABLE>
<S>                                                          <C>
                    JOHN B. CLUTTERBUCK                                            CRAIG E. CHAPMAN
           MAYOR, DAY, CALDWELL & KEETON, L.L.P.                                   BROWN & WOOD LLP
                 700 LOUISIANA, SUITE 1900                                      ONE WORLD TRADE CENTER
                 HOUSTON, TEXAS 77002-2778                                  NEW YORK, NEW YORK 10048-0557
</TABLE>

                           -------------------------
   APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: From time to
time after this registration statement becomes effective.

   If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. [ ]

   If any of the securities being registered on this Form are to be offered on a
delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. [X]

   If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act of 1933, check the following
box and list the Securities Act of 1933 registration statement number of the
earlier effective registration statement for the same offering. [ ]

   If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act of 1933, check the following box and list the
Securities Act of 1933 registration statement number of the earlier effective
registration statement for the same offering. [ ]

   If delivery of the prospectus is expected to be made pursuant to Rule 434,
check the following box. [ ]
                           -------------------------
                        CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------------------------------------
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                PROPOSED MAXIMUM        PROPOSED MAXIMUM
        TITLE OF EACH CLASS OF              AMOUNT TO BE       OFFERING PRICE PER      AGGREGATE OFFERING         AMOUNT OF
    SECURITIES TO BE REGISTERED(1)         REGISTERED(2)           UNIT(3)(4)              PRICE(4)(5)         REGISTRATION FEE
- ---------------------------------------------------------------------------------------------------------------------------------
<S>                                     <C>                  <C>                     <C>                     <C>
APACHE CORPORATION:
Common Stock and Related Rights,
 Preferred Stock, Depositary Shares,
 Common Stock Purchase Contracts,
 Common Stock Purchase Units and Debt
 Securities(6).........................          --                    --
Guarantees of Trust Preferred
 Securities of Apache Trust I and
 Apache Trust II(7)....................          --                    --
APACHE TRUST I AND APACHE TRUST II:
Trust Preferred Securities.............          --                    --
       Total...........................          --                    --                $1,000,000,000            $264,000
- ---------------------------------------------------------------------------------------------------------------------------------
- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE>

(1) This registration statement also covers trust preferred securities, debt
    securities, depositary shares, preferred stock, common stock purchase
    contracts, common stock purchase units and common stock and related rights
    which may be issued in exchange for, or upon conversion of, as the case may
    be, the securities registered hereunder. In addition, any other securities
    registered hereunder may be sold separately or as units with other
    securities registered hereunder.
(2) In no event will the aggregate initial offering price of common stock and
    related rights, preferred stock, depositary shares, debt securities, common
    stock purchase contracts, common stock purchase units and trust preferred
    securities, issued under this registration statement exceed $1,000,000,000,
    or the equivalent thereof in one or more foreign currencies or composite
    currencies.
(3) Not specified as to each class of securities to be registered pursuant to
    General Instruction II.D of Form S-3 under the Securities Act of 1933.
(4) The proposed maximum offering price per unit will be determined from time to
    time by Apache in connection with, and at the time of, the issuance by
    Apache and/or Apache Trust I or Apache Trust II of the securities registered
    hereunder.
(5) Estimated solely for the purposes of computing the registration fee pursuant
    to Rule 457(o) of the Securities Act of 1933.
(6) Debt securities may be issued and sold directly to investors or to Apache
    Trust I or Apache Trust II in connection with the issuance of trust
    preferred securities by Apache Trust I or Apache Trust II, in which event
    such debt securities may later be distributed to the holders of trust
    preferred securities upon a dissolution and liquidation of Apache Trust I or
    Apache Trust II. No separate consideration will be received for the debt
    securities of Apache distributed upon any liquidation of Apache Trust I or
    Apache Trust II.
(7) Apache is also registering under this registration statement all other
    obligations that it may have with respect to trust preferred securities
    issued by the Apache Trusts. No separate consideration will be received for
    any guarantee or any other such obligations.
                           -------------------------
   THE REGISTRANTS HEREBY AMEND THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANTS
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THIS REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>   2

        THE INFORMATION IN THIS PRELIMINARY PROSPECTUS IS NOT COMPLETE AND MAY
        BE CHANGED. APACHE AND THE APACHE TRUSTS MAY NOT SELL THESE SECURITIES
        UNTIL THE SECURITIES AND EXCHANGE COMMISSION DECLARES THE REGISTRATION
        STATEMENT EFFECTIVE. THIS PRELIMINARY PROSPECTUS IS NOT AN OFFER TO SELL
        OR THE SOLICITATION OF AN OFFER TO BUY THESE SECURITIES IN ANY STATE
        WHERE THE OFFER OR SALE IS NOT PERMITTED.

                  SUBJECT TO COMPLETION, DATED MARCH 15, 2000.

PROSPECTUS

                                 $1,000,000,000

                               APACHE CORPORATION

                                  COMMON STOCK
                                PREFERRED STOCK
                               DEPOSITARY SHARES
                                DEBT SECURITIES
                        COMMON STOCK PURCHASE CONTRACTS
                          COMMON STOCK PURCHASE UNITS

                                 APACHE TRUST I
                                APACHE TRUST II

                           TRUST PREFERRED SECURITIES
                                 GUARANTEED BY
                               APACHE CORPORATION
                           -------------------------
     By this prospectus, Apache Corporation may from time to time offer our
common stock and related rights, preferred stock, depositary shares, contracts
to purchase shares of common stock, common stock purchase units, senior debt
securities and/or subordinated debt securities, and each of the Apache Trusts
may from time to time offer its trust preferred securities guaranteed by us.

     This prospectus provides a general description of the securities Apache and
the Apache Trusts may offer. Supplements to this prospectus will describe the
specific terms of the securities that Apache and/or the Apache Trusts actually
offer. This prospectus may not be used to sell securities unless it is
accompanied by a prospectus supplement that describes those securities.

     Before you invest, you should carefully read this prospectus, any
applicable prospectus supplement and any information under the heading "Where
You Can Find More Information."

     We may sell these securities to or through underwriters, to other
purchasers and/or through agents. The accompanying prospectus supplement will
specify the names of any underwriters or agents.
                           -------------------------
     NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.
                           -------------------------
                  This prospectus is dated             , 2000.
<PAGE>   3

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
About This Prospectus.......................................    1
Where You Can Find More Information.........................    1
Cautionary Statements Regarding Forward-Looking
  Statements................................................    3
Apache Corporation..........................................    3
Apache Trusts...............................................    3
Ratios of Earnings to Fixed Charges and to Combined Fixed
  Charges and Preferred Stock Dividends.....................    4
Use of Proceeds.............................................    5
The Securities Apache and the Apache Trusts May Offer.......    5
Description of Capital Stock................................    7
Description of Depositary Shares............................   15
Description of Debt Securities..............................   18
Description of Trust Preferred Securities...................   34
Description of Trust Preferred Securities Guarantees........   41
Description of Common Stock Purchase Contracts and Units....   43
Book-Entry Securities.......................................   44
Plan of Distribution........................................   46
Legal Matters...............................................   47
Experts.....................................................   47
</TABLE>

                                        i
<PAGE>   4
                             ABOUT THIS PROSPECTUS


     This prospectus is part of a registration statement that we filed with the
Securities and Exchange Commission utilizing a "shelf" registration process.
Under this shelf process, Apache and/or the Apache Trusts may sell any
combination of the securities described in this prospectus in one or more
offerings up to a total offering price of $1,000,000,000, including the U.S.
dollar equivalent of non-U.S. dollar offerings. This prospectus provides you
with a general description of the securities we may offer. Each time we offer to
sell securities, we will provide a prospectus supplement that will contain
specific information about the terms of that offering. The prospectus supplement
may also add, update or change information contained in this prospectus. You
should read this prospectus, the applicable prospectus supplement and the
additional information described below under the heading "Where You Can Find
More Information."

                      WHERE YOU CAN FIND MORE INFORMATION

     We file annual, quarterly and special reports, proxy statements and other
information with the Securities and Exchange Commission. Our Securities and
Exchange Commission filings are available to the public over the Internet at the
Securities and Exchange Commission's web site at http://www.sec.gov. You may
also read and copy any document we file at the Securities and Exchange
Commission's public reference rooms located at:

     - 450 Fifth Street, N.W.
       Washington, D.C. 20549;

     - 7 World Trade Center
       New York, New York 10048; and

     - Citicorp Center
       500 West Madison Street
       Chicago, Illinois 60661.

     Please call the Securities and Exchange Commission at 1-800-SEC-0330 for
further information on the public reference rooms and their copy charges.

     Our common stock has been listed and traded on the New York Stock Exchange
since 1969 and the Chicago Stock Exchange since 1960. Accordingly, you may
inspect the information we file with the Securities and Exchange Commission at
the New York Stock Exchange, 20 Broad Street, New York, New York 10005, and at
the Chicago Stock Exchange, One Financial Place, 440 S. LaSalle Street, Chicago,
Illinois 60605-1070. For more information on obtaining copies of our public
filings at the New York Stock Exchange, you should call (212) 656-5060.

     The Securities and Exchange Commission allows us to "incorporate by
reference" the information we file with them, which means that we can disclose
important information to you by referring you to those documents. The
information incorporated by reference is an important part of this prospectus,
and information that we file later with the Securities and Exchange Commission
will automatically update and supersede this information. Until we sell all of
the securities covered by this prospectus, we incorporate by reference the
documents filed by us listed below and any future filings we make with the
Securities and Exchange Commission under Sections 13(a), 13(c), 14 or 15(d) of
the Securities Exchange Act of 1934:

     - Annual Report on Form 10-K for the fiscal year ended December 31, 1998;

     - Quarterly Report on Form 10-Q for the quarter ended March 31, 1999;

     - Quarterly Report on Form 10-Q for the quarter ended June 30, 1999;

     - Quarterly Report on Form 10-Q for the quarter ended September 30, 1999;



                                        1
<PAGE>   5

     - Current Report on Form 8-K dated March 2, 1999, as amended by Amendment
       No. 1 on Form 8-K/A filed on March 5, 1999;

     - Current Report on Form 8-K dated April 29, 1999, as amended by Amendment
       No. 1 on Form 8-K/A filed on May 12, 1999 and Amendment No. 2 on Form
       8-K/A filed on May 24, 1999;

     - Current Report on Form 8-K dated May 18, 1999, as amended by Amendment
       No. 1, on Form 8-K/A filed on July 30, 1999;

     - Current Report on Form 8-K dated June 22, 1999;

     - Current Report on Form 8-K dated October 5, 1999;

     - Current Report on Form 8-K dated November 30, 1999, as amended by
       Amendment No. 1 on Form 8-K/A filed on December 14, 1999;

     - Current Report on Form 8-K dated December 17, 1999; and

     - Current Report on Form 8-K dated February 3, 2000.

     Each of these documents is available from the Securities and Exchange
Commission's web site and public reference rooms described above. You may also
request a copy of these filings, excluding exhibits, at no cost by writing or
telephoning Cheri L. Peper, Corporate Secretary, at our principal executive
office, which is:

                           Apache Corporation
                           2000 Post Oak Boulevard, Suite 100
                           Houston, Texas 77056-4400
                           (713) 296-6000.

     There are no separate financial statements of the Apache Trusts in this
prospectus. We do not believe these financial statements would be helpful
because:

     - the Apache Trusts are wholly-owned subsidiaries of Apache, which files
       consolidated financial information under the Securities Exchange Act;

     - the Apache Trusts will not have any independent operations other than
       issuing trust preferred securities and trust common securities,
       purchasing debt securities of Apache Corporation and other necessary or
       incidental activities as described in this prospectus; and

     - Apache guarantees the trust preferred securities of the Apache Trusts.

     Our web site address is http://www.apachecorp.com. The information on our
web site is not incorporated by reference into this prospectus. You should rely
only on the information incorporated by reference or provided in this prospectus
or any prospectus supplement. We have not authorized anyone to provide you with
different information.

     We are not making an offer of the securities covered by this prospectus in
any state where the offer is not permitted. You should not assume that the
information in this prospectus or any prospectus supplement or in any other
document incorporated by reference in this prospectus is accurate as of any date
other than the date of those documents.

                                        2
<PAGE>   6

           CAUTIONARY STATEMENTS REGARDING FORWARD-LOOKING STATEMENTS

     This prospectus and the documents incorporated by reference in this
prospectus contain "forward-looking statements" within the meaning of Section
27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act
of 1934. These statements are based on our current expectations, estimates and
projections. Therefore, they could ultimately prove to be inaccurate. Our plans
for capital and exploratory spending and for cost and expense reduction may
change if business conditions, such as energy prices and world economic
conditions, change. Other factors that may have a direct bearing on our results
of operations and financial condition are:

     - competitive practices in the industries in which we compete;

     - fluctuations in oil and gas prices that have not been properly hedged or
       that are inconsistent with our marketing activities;

     - operational and systems risks;

     - environmental liabilities that are not covered by indemnity or insurance;

     - general economic and capital market conditions, including fluctuations in
       interest rates; and

     - the impact of current and future laws and governmental regulations
       (particularly environmental regulations) affecting the energy industry in
       general and Apache's operations in particular.

                               APACHE CORPORATION

     Apache Corporation is a Delaware corporation formed in 1954. We are an
independent energy company that explores for, develops and produces natural gas,
crude oil and natural gas liquids. In North America, our exploration and
production interests are focused on the Gulf of Mexico, the Anadarko Basin, the
Permian Basin, the Gulf Coast and the Western Sedimentary Basin of Canada.
Outside of North America, we have exploration and production interests offshore
Western Australia and in Egypt and exploration interests in Poland and offshore
The People's Republic of China.

     We hold interests in many of our U.S., Canadian and international
properties through operating subsidiaries, such as Apache Canada Ltd., DEK
Energy Company, which was formerly known as DEKALB Energy Company, Apache Energy
Limited, which was formerly known as Hadson Energy Limited, Apache
International, Inc., and Apache Overseas, Inc. The properties referred to in
this prospectus, in any prospectus supplement or in any other document
incorporated by reference in this prospectus may be held by our subsidiaries. We
treat all operations as one line of business.

                                 APACHE TRUSTS

     We created Apache Trust I and Apache Trust II, each of which is a Delaware
business trust, pursuant to trust agreements and the filing of certificates of
trust with the Delaware Secretary of State. We will execute amended and restated
trust agreements for the Apache Trusts, referred to in this prospectus as the
"trust agreements," which will state the terms and conditions for the Apache
Trusts to issue and sell their trust preferred securities and trust common
securities. We have filed a form of trust agreement as an exhibit to the
registration statement of which this prospectus forms a part.

                                        3
<PAGE>   7

     The Apache Trusts will exist solely to:

     - issue and sell their trust preferred securities and trust common
       securities;

     - use the proceeds from the sale of their trust preferred securities and
       trust common securities to purchase Apache's debt securities; and

     - engage in other activities that are necessary or incidental to the above
       purposes.

     Apache will hold directly or indirectly all of the trust common securities
of each of the Apache Trusts. The trust common securities will represent an
aggregate liquidation amount equal to at least 3% of each Apache Trust's total
capitalization. The trust preferred securities will represent the remaining
percentage of each Apache Trust's total capitalization. The trust common
securities will have terms substantially identical to, and will rank equal in
priority of payment with, the trust preferred securities. However, if Apache
defaults on the debt securities owned by an Apache Trust, then, so long as the
default continues, cash distributions and liquidation, redemption and other
amounts payable on the trust common securities of that trust will be subordinate
to the trust preferred securities of that trust in priority of payment.

     The trust preferred securities will be guaranteed by us as described in
this prospectus and the applicable prospectus supplement.

     Unless otherwise specified in the applicable prospectus supplement, the
following four trustees will conduct each Apache Trust's business and affairs:

     - The Chase Manhattan Bank, a New York banking corporation, as property
       trustee;

     - Chase Manhattan Bank Delaware, a Delaware banking corporation, as
       Delaware trustee; and

     - two of our officers, as administrative trustees.

     Only we, as direct or indirect owner of the trust common securities, can
remove or replace the administrative trustees. In addition, we can increase or
decrease the number of administrative trustees. Also, we, as direct or indirect
holder of the trust securities, will generally have the sole right to remove or
replace the property and Delaware trustees. However, if Apache defaults on the
debt securities owned by an Apache Trust, then, so long as that default is
continuing, the holders of a majority in liquidation amount of the outstanding
trust preferred securities of that trust may remove and replace the property and
Delaware trustees for that trust.

     We will pay all fees and expenses related to the Apache Trusts and the
offering of the trust preferred securities. We will also pay all ongoing costs
and expenses of the Apache Trusts, except each trust's obligations under the
trust preferred securities and trust common securities.

                    RATIOS OF EARNINGS TO FIXED CHARGES AND
                           TO COMBINED FIXED CHARGES
                         AND PREFERRED STOCK DIVIDENDS

     Our ratios of earnings to fixed charges and our ratios of earnings to
combined fixed charges and preferred stock dividends were as follows for the
periods indicated in the table below.

<TABLE>
<CAPTION>
                                               NINE MONTHS
                                                  ENDED
                                              SEPTEMBER 30,       YEAR ENDED DECEMBER 31,
                                              -------------   --------------------------------
                                              1999    1998    1998   1997   1996   1995   1994
                                              -----   -----   ----   ----   ----   ----   ----
<S>                                           <C>     <C>     <C>    <C>    <C>    <C>    <C>
Ratio of earnings to fixed charges..........  2.35    1.18      --   2.93   2.72   1.15   2.34
Ratio of earnings to combined fixed charges
  and preferred stock dividends.............  2.03    1.17      --   2.93   2.72   1.15   2.34
</TABLE>

                                        4
<PAGE>   8

     Our ratios of earnings to fixed charges and our ratios of earnings to
combined fixed charges and preferred stock dividends were computed based on:

     - "earnings," which consist of consolidated income or losses from
       continuing operations plus income taxes and fixed charges, except
       capitalized interest; and

     - "fixed charges," which consist of consolidated interest on indebtedness,
       including capitalized interest, amortization of debt discount and
       expense, and the estimated portion of rental expense attributable to
       interest.

     Due to the $243.2 million non-cash write-down of the carrying value of our
U.S. proved oil and gas properties for the year ended December 31, 1998, our
1998 earnings were inadequate to cover fixed charges by $236.8 million and
inadequate to cover combined fixed charges and preferred stock dividends by
$239.7 million.

     On May 17, 1995, Apache acquired DEKALB Energy Company, which is now known
as DEK Energy Company, through a merger which resulted in DEKALB becoming a
wholly-owned subsidiary of Apache. The merger was accounted for as a "pooling of
interests." As a result, our financial information for all preceding periods was
restated.

                                USE OF PROCEEDS

     Unless otherwise indicated in an accompanying prospectus supplement, we
expect to use the net proceeds from the sale of our securities for general
corporate purposes, which may include, among other things:

     - the repayment of outstanding indebtedness;

     - working capital;

     - capital expenditures; and

     - acquisitions.

     The precise amount and timing of the application of such proceeds will
depend upon our funding requirements and the availability and cost of other
funds.

     The Apache Trusts will use all proceeds from the sale of the trust common
and trust preferred securities to purchase debt securities of Apache.

             THE SECURITIES APACHE AND THE APACHE TRUSTS MAY OFFER

     The descriptions of the securities contained in this prospectus, together
with the applicable prospectus supplements, summarize all the material terms and
provisions of the various types of securities that we may offer. The particular
terms of the securities offered by any prospectus supplement will be described
in that prospectus supplement. If indicated in the applicable prospectus
supplement, the terms of the securities may differ from the terms summarized
below. The prospectus supplement will also contain information, where
applicable, about material U.S. federal income tax considerations relating to
the securities, and the securities exchange, if any, on which the securities
will be listed.

     We may sell from time to time, in one or more offerings:

     - common stock and related rights;

     - preferred stock;

     - depositary shares;

                                        5
<PAGE>   9

     - common stock purchase contracts;

     - common stock purchase units;

     - senior debt securities; and/or

     - subordinated debt securities

     The Apache Trusts may offer and sell from time to time their trust
preferred securities guaranteed by us.

     In this prospectus, we refer to the common stock and related rights,
preferred stock, depositary shares, common stock purchase contracts, common
stock purchase units, senior debt securities, subordinated debt securities,
trust preferred securities and our guarantees of the trust preferred securities
collectively as "securities."

     If we issue securities at a discount from their original stated principal
amount, then, for purposes of calculating the total dollar amount of all
securities issued under this prospectus, we will treat the initial offering
price of the securities as the total original principal amount of the
securities.

     This prospectus may not be used to sell securities unless it is accompanied
by a prospectus supplement.

                                        6
<PAGE>   10

                          DESCRIPTION OF CAPITAL STOCK

     The following description of our common stock and preferred stock, together
with the additional information included in any applicable prospectus
supplements, summarizes the material terms and provisions of these types of
securities. For the complete terms of our common stock and preferred stock,
please refer to our charter, bylaws and stockholder rights plan that are
incorporated by reference into the registration statement that includes this
prospectus or may be incorporated by reference in this prospectus. The terms of
these securities may also be affected by the General Corporation Law of the
State of Delaware.

     Under our charter, our authorized capital stock consists of 215,000,000
shares of common stock, $1.25 par value per share, and 5,000,000 shares of
preferred stock, no par value. We will describe the specific terms of any common
stock or preferred stock we may offer in a prospectus supplement. If indicated
in a prospectus supplement, the terms of any common stock or preferred stock
offered under that prospectus supplement may differ from the terms described
below.

COMMON STOCK

     As of February 29, 2000, Apache had approximately 113,640,647 shares of
common stock issued and outstanding. Also as of February 29, 2000, subject to
stock dividends and other events, up to 5,737,900 shares of common stock were
issuable upon conversion of our Series C preferred stock, as described below
under "Preferred Stock -- Series C." Each outstanding share of common stock
currently has attached to it one preferred share purchase right issued under our
stockholder rights plan, which is summarized below. All outstanding shares of
common stock are, and any shares of common stock sold pursuant to this
prospectus will be, duly authorized, validly issued, fully paid and
nonassessable.

  Voting

     For all matters submitted to a vote of stockholders, each holder of common
stock is entitled to one vote for each share registered in his or her name on
the books of Apache. Our common stock does not have cumulative voting rights. As
a result, subject to the voting rights of Series B and Series C preferred
stockholders and any future holders of our preferred stock, persons who hold
more than 50% of the outstanding common stock entitled to elect members of the
board of directors can elect all of the directors who are up for election in a
particular year.

  Dividends

     If our board of directors declares a dividend, holders of common stock will
receive payments from the funds of Apache that are legally available to pay
dividends. However, this dividend right is subject to any preferential dividend
rights we have granted to Series B and Series C preferred stockholders or may
grant to future holders of preferred stock.

  Liquidation

     If Apache is dissolved, the holders of common stock will be entitled to
share ratably in all the assets that remain after we pay our liabilities and any
amounts we may owe to the persons who hold our preferred stock.

  Other Rights and Restrictions

     Holders of common stock do not have preemptive rights, and they have no
right to convert their common stock into any other securities. Our common stock
is not subject to redemption by Apache. Our charter and bylaws do not restrict
the ability of a holder of common stock to transfer his or her shares of common
stock.

                                        7
<PAGE>   11

     Delaware law provides that, if we make a distribution to our stockholders
other than a distribution of our capital stock either when we are insolvent or
when we would be rendered insolvent, then our stockholders would be required to
pay back to us the amount of the distribution we made to them, or the portion of
the distribution that causes us to become insolvent, as the case may be.

  Listing

     Our common stock is listed on the New York Stock Exchange and the Chicago
Stock Exchange under the symbol "APA."

  Transfer Agent and Registrar

     The transfer agent and registrar for our common stock is Norwest Bank
Minnesota, National Association.

PREFERRED STOCK

  General

     We have 5,000,000 shares of no par preferred stock authorized, of which
25,000 shares have been designated as Series A Junior Participating Preferred
Stock, 100,000 shares have been designated as 5.68% Series B Cumulative
Preferred Stock and 140,000 shares have been designated as Automatically
Convertible Equity Securities, Conversion Preferred Stock, Series C. The
remaining shares of preferred stock are undesignated.

     Our charter authorizes our board of directors to issue preferred stock in
one or more series and to determine the voting rights and dividend rights,
dividend rates, liquidation preferences, conversion rights, redemption rights,
including sinking fund provisions and redemption prices, and other terms and
rights of each series of preferred stock.

  Series A

     The shares of Series A preferred stock are authorized for issuance pursuant
to rights that trade with outstanding Apache common stock and are reserved for
issuance upon the exercise of the rights discussed below under the caption
"-- Stockholder Rights Plan."

  Series B

     As of February 29, 2000, Apache had issued and outstanding 100,000 shares
of Series B preferred stock in the form of one million depositary shares, each
representing one-tenth (1/10) of a share of Series B preferred stock. The
Series B preferred stock has no stated maturity, is not subject to a sinking
fund and is not convertible into Apache common stock or any other securities.
Apache has the option to redeem the Series B preferred stock at $1,000 per share
on or after August 25, 2008. Holders of the depositary shares are entitled to
receive cumulative cash dividends at an annual rate of $5.68 per depositary
share (based on $56.80 for each share of Series B preferred stock) when, as and
if declared by Apache's board of directors.

     The Series B preferred stock has a liquidation preference of $1,000 per
share, which is equivalent to $100 per depositary share, plus accrued and unpaid
dividends.

     The Series B preferred stock ranks prior and superior to our common stock
and Series A preferred stock as to payment of dividends and distribution of
assets upon our dissolution, liquidation or winding up.

     The Series B preferred stock ranks equal to the Series C preferred stock as
to payment of dividends and distribution of assets upon dissolution, liquidation
or winding up.

                                        8
<PAGE>   12

     If dividends are not paid on the Series B preferred stock, cash payments on
our common stock and any other capital stock of Apache that ranks junior to the
Series B preferred stock as to dividends are prohibited and payments on any
other capital stock of Apache that ranks equal to the Series B preferred stock
as to dividends, including the Series C preferred stock, are restricted.

     Shares of Series B preferred stock generally do not have voting rights.
However, if we fail to pay the equivalent of six quarterly dividends payable on
the Series B preferred stock or another class or series of preferred stock that
ranks equally with the Series B preferred stock, including the Series C
preferred stock, then we will increase the size of our board of directors by two
members. The holders of the Series B preferred stock and any other class or
series of preferred stock ranking equally with the Series B preferred stock,
including the Series C preferred stock, voting as a single class together with
any other class of preferred stock ranking equally, will then have the right to
vote for the two additional directors. This voting right would continue until we
paid all past dividends on all preferred stock.

     Without the vote of at least 80% of the outstanding shares of Series B
preferred stock, we may not amend any provision in our charter so as to
adversely affect the powers, preferences, privileges or rights of the Series B
preferred stock.

     Without the approval of the holders, voting together as a single class, of
80% of all the shares of Series B preferred stock then outstanding and all
shares of any other series of the preferred stock of Apache ranking equally as
to dividends or upon liquidation, including the Series C preferred stock, we
will not:

     - issue, authorize or increase the authorized amount of, or issue or
       authorize any obligation or security convertible into or evidencing a
       right to purchase, any stock of any class ranking prior to the Series B
       preferred stock as to dividends or upon liquidation; or

     - reclassify any authorized Apache stock into any stock of any class, or
       any obligation or security convertible into or evidencing a right to
       purchase such stock, ranking prior to the Series B preferred stock,

provided that no such vote will be required for Apache to take any of these
actions to issue, authorize or increase the authorized amount of, or issue or
authorize any obligation or security convertible into or evidencing a right to
purchase, any stock ranking equally with or junior to the Series B preferred
stock.

     Without the approval of the holders of at least a majority of the shares of
Series B preferred stock then outstanding, we will not become a party to any
merger, conversion, consolidation or compulsory share exchange unless the terms
of that transaction do not provide for a change in the terms of the Series B
preferred stock and the Series B preferred stock ranks equally with or prior to
any capital stock of the surviving corporation as to dividends or upon
liquidation, dissolution or winding up other than prior-ranking Apache stock
previously authorized with the consent of holders of the Series B preferred
stock.

  Series C

     As of February 29, 2000, Apache had issued and outstanding 138,482 shares
of Series C preferred stock in the form of 6,924,100 depositary shares, each
representing one-fiftieth (1/50) of a share of Series C preferred stock.
Holders of the shares are entitled to receive cumulative cash dividends at an
annual rate of $2.015 per depositary share (based on $100.75 for each share of
Series C preferred stock) when, as and if declared by Apache's board of
directors.

     On May 15, 2002, each depositary share will automatically convert into
shares of Apache common stock at an exchange rate that will be not more than one
share and not less than

                                        9
<PAGE>   13

0.8197 shares of Apache common stock per depositary share. The exchange rate
will depend on the current market value of Apache common stock prior to the date
of conversion, and is subject to adjustments for stock dividends and other
events.

     At any time prior to May 15, 2002, holders may elect to convert each
depositary share into 0.8197 of a share of Apache common stock, subject to
adjustments for stock dividends and other events.

     The Series C preferred stock has a liquidation preference of $1,550 per
share, which is equivalent to $31 per depositary share, plus accrued and unpaid
dividends.

     The Series C preferred stock ranks prior and superior to our common stock
and Series A preferred stock as to payment of dividends and distribution of
assets upon our dissolution, liquidation or winding up.

     The Series C preferred stock ranks equal to the Series B preferred stock as
to payment of dividends and distribution of assets upon our dissolution,
liquidation or winding up.

     If dividends are not paid on the Series C preferred stock, cash payments on
our common stock and any other capital stock of Apache that ranks junior to the
Series C preferred stock as to dividends are prohibited and payments on any
other capital stock of Apache that ranks equal to the Series C preferred stock
as to dividends, including the Series B preferred stock, are restricted.

     Shares of Series C preferred stock generally do not have voting rights.
However, if we fail to pay the equivalent of six quarterly dividends payable on
the Series C preferred stock or another class or series of preferred stock that
ranks equally with the Series C preferred stock, including the Series B
preferred stock, then we will increase the size of our board of directors by two
members. The holders of the Series C preferred stock and any other class or
series of preferred stock ranking equally with the Series C preferred stock,
including the Series B preferred stock, voting as a single class together with
any other class of preferred stock ranking equally, will then have the right to
vote for the two additional directors. This voting right would continue until we
paid all past dividends on all preferred stock.

     Without the vote of at least 80% of the outstanding shares of Series C
preferred stock, we may not amend any provision in our charter so as to
adversely affect the powers, preferences, privileges or rights of the Series C
preferred stock.

     Without the approval of the holders, voting together as a single class, of
80% of all the shares of Series C preferred stock then outstanding and all
shares of any other series of the preferred stock of Apache ranking equally as
to dividends or upon liquidation, including the Series B preferred stock, we
will not:

     - issue, authorize or increase the authorized amount of, or issue or
       authorize any obligation or security convertible into or evidencing a
       right to purchase, any stock of any class ranking prior to the Series C
       preferred stock as to dividends or upon liquidation; or

     - reclassify any authorized Apache stock into any stock of any class, or
       any obligation or security convertible into or evidencing a right to
       purchase such stock, ranking prior to the Series C preferred stock,

provided that no such vote will be required for Apache to take any of these
actions to issue, authorize or increase the authorized amount of, or issue or
authorize any obligation or security convertible into or evidencing a right to
purchase, any stock ranking equally with or junior to the Series C preferred
stock.

     Without the approval of the holders of at least a majority of the shares of
Series C preferred stock then outstanding, we will not become a party to any
merger, conversion, consolidation or compulsory share exchange unless the terms
of that transaction do not provide for a change in
                                       10
<PAGE>   14

the terms of the Series C preferred stock and the Series C preferred stock ranks
equally with or prior to any capital stock of the surviving corporation as to
dividends or upon liquidation, dissolution or winding up, other than
prior-ranking Apache stock previously authorized with the consent of holders of
the Series C preferred stock.

     The depositary shares representing Series C preferred stock are listed on
the New York Stock Exchange under the symbol "APAPrC."

     UNDESIGNATED PREFERRED STOCK

     This summary of the undesignated preferred stock discusses terms and
conditions that we expect will apply to all series of the preferred stock
offered under this prospectus. The applicable prospectus supplement will
describe the particular terms of each series of preferred stock actually
offered. If indicated in the prospectus supplement, the terms of any series may
differ from the terms described below.

     The following description, together with the applicable prospectus
supplements, summarizes all the material terms and provisions of any preferred
stock being offered by this prospectus. It does not restate the terms and
provisions in their entirety. We urge you to read our charter and any applicable
certificate of designation that may be on file because they, and not this
description, define the rights of any holders of preferred stock. We have filed
our charter as an exhibit to the registration statement which includes this
prospectus. We will incorporate by reference as an exhibit to the registration
statement the form of any certificate of designation before the issuance of any
series of preferred stock.

     We expect the prospectus supplement for any preferred stock that we
actually offer pursuant to this prospectus to include some or all of the
following terms:

     - the designation of the series of preferred stock;

     - the number of shares of preferred stock offered, the liquidation
       preference per share and the offering price of the preferred stock;

     - the dividend rate or rates of the shares, the method or methods of
       calculating the dividend rate or rates, the dates on which dividends, if
       declared, will be payable, and whether or not the dividends are to be
       cumulative and, if cumulative, the date or dates from which dividends
       shall be cumulative;

     - the amounts payable on shares of the preferred stock in the event of our
       voluntary or involuntary liquidation, dissolution or winding up;

     - the redemption rights and price or prices, if any, for the shares of
       preferred stock;

     - any terms, and the amount, of any sinking fund or analogous fund
       providing for the purchase or redemption of the shares of preferred
       stock;

     - any restrictions on our ability to make payments on any of our capital
       stock if dividend or other payments are not made on the preferred stock;

     - any voting rights granted to the holders of the shares of preferred stock
       in addition to those required by Delaware law or our certificate of
       incorporation;

     - whether the shares of preferred stock will be convertible into shares of
       our common stock or any other class of our capital stock, and, if
       convertible, the conversion price or prices, and any adjustment or other
       terms and conditions upon which the conversion shall be made;

     - any other rights, preferences, restrictions, limitations or conditions
       relative to the shares of preferred stock permitted by Delaware law or
       our certificate of incorporation;

     - any listing of the preferred stock on any securities exchange; and

     - the federal income tax considerations applicable to the preferred stock.

                                       11
<PAGE>   15

     Subject to our charter and to any limitations imposed by any
then-outstanding preferred stock, we may issue additional series of preferred
stock, at any time or from time to time, with such powers, preferences, rights
and qualifications, limitations or restrictions as the board of directors
determines, and without further action of the stockholders, including holders of
our then outstanding preferred stock, if any.

STOCKHOLDER RIGHTS PLAN

     In 1995, our board of directors adopted a stockholder rights plan to
replace the former plan adopted in 1986. Under our stockholder rights plan, each
of our common stockholders received a dividend of one "preferred stock purchase
right" for each outstanding share of common stock that the stockholder owned. We
refer to these preferred stock purchase rights as the "rights." Unless the
rights have been previously redeemed, all shares of Apache common stock are
issued with rights. The rights trade automatically with our shares of common
stock and become exercisable only under certain circumstances described below.

     The purpose of the rights is to encourage potential acquirors to negotiate
with our board of directors before attempting a takeover bid and to provide our
board of directors with leverage in negotiating on behalf of our stockholders
the terms of any proposed takeover. The rights may have certain anti-takeover
effects. They should not, however, interfere with any merger or other business
combination approved by our board of directors.

     The following description is a summary of all the material terms of our
stockholder rights plan. It does not restate these terms in their entirety. We
urge you to read our stockholder rights plan because it, and not this
description, defines the terms and provisions of our plan. Our stockholder
rights plan is incorporated by reference as an exhibit to the registration
statement that includes this prospectus. You may obtain a copy at no charge by
writing to us at the address listed under the caption "Where You Can Find More
Information."

  Exercise of Rights

     Until a right is exercised, the holder of a right will not have any rights
as a stockholder. When the rights become exercisable, holders of the rights will
be able to purchase from us 1/10,000th of a share of our Series A preferred
stock, at a purchase price of $100, subject to adjustment, per 1/10,000th of a
share.

     In general, the rights will become exercisable upon the earlier of:

     - ten calendar days after a public announcement that a person or group has
       acquired beneficial ownership of 20% or more of the outstanding shares of
       our common stock; or

     - ten business days after the beginning of a tender offer or exchange offer
       that would result in a person or group beneficially owning 30% or more of
       our common stock.

  Flip in Event

     If a person or group becomes the beneficial owner of 20% or more of our
common stock, then each right will then entitle its holder to receive, upon
exercise, a number of shares of our common stock which is equal to the exercise
price of the right divided by one-half of the market price of our common stock
on the date of the occurrence of this event. We refer to this occurrence as a
"flip in event." A flip in event does not occur if there is an offer for all of
our outstanding shares of common stock that our board of directors determines is
fair to our stockholders and in Apache's best interests.

                                       12
<PAGE>   16

  Flip Over Event

     If, at any time after a person or group becomes the beneficial owner of 20%
or more of our common stock, Apache is acquired in a merger or other transaction
in which Apache does not survive or in which our common stock is changed or
exchanged or 50% or more of Apache's assets or earning power is sold or
transferred, then each holder of a right will be entitled to receive, upon
exercise, a number of shares of common stock of the acquiring company in the
transaction equal to the exercise price of the right divided by one-half of the
market price of the acquiring company's common stock on the date of the
occurrence of this event. This exercise right will not occur if the merger or
other transaction follows an offer for all of our outstanding shares of common
stock that our board of directors determines is fair to our stockholders and in
Apache's best interests.

  Exchange of Rights

     At any time after a flip in event, our board of directors may exchange the
rights by providing to the holder one share of our common stock or 1/10,000th of
a share of our Series A preferred stock for each of the holder's rights.

  Redemption of Rights

     At any time before a flip in event, we may redeem the rights at a price of
$.01 per right. The rights will expire on the close of business on January 31,
2006, subject to earlier expiration or termination as described in our
stockholder rights plan.

     Unless and until the rights become exercisable, they will be transferred
with and only with the shares of Apache common stock.

ANTI-TAKEOVER EFFECT OF PROVISIONS OF APACHE'S CHARTER AND BYLAWS AND DELAWARE
LAW

     Apache's charter and bylaws include provisions designed to prevent the use
of certain tactics in connection with a potential takeover of Apache. Please
refer to our charter and bylaws that are incorporated by reference into the
registration statement that includes this prospectus. You may obtain copies at
no charge by writing to us at the address listed under the caption "Where You
Can Find More Information."

     Certain provisions of Delaware law described below also have an
anti-takeover effect.

  Apache's Bylaws

     Apache's board of directors is divided into three classes, with directors
serving staggered three-year terms.

  Apache's Charter

     Article Nine provides that Apache's board of directors is divided into
three classes, with directors serving staggered three-year terms.

     Article Twelve generally stipulates that the affirmative vote of 80% of our
voting shares is required to adopt any agreement for the merger or consolidation
with or into any other corporation which is the beneficial owner of more than 5%
of our voting shares. Article Twelve further provides that such 80% approval is
necessary to authorize any sale or lease of assets between Apache and any
beneficial holder of 5% or more of our voting shares.

                                       13
<PAGE>   17

     Article Fourteen contains a "fair price" provision which requires that any
tender offer made by a beneficial owner of more than 5% of our outstanding
voting stock in connection with any:

     - plan of merger, consolidation or reorganization;

     - sale or lease of substantially all of our assets; or

     - issuance of our equity securities to the 5% stockholder

must provide at least as favorable terms to each holder of common stock other
than the stockholder making the tender offer.

     Article Fifteen contains an "anti-greenmail" mechanism which prohibits
Apache from acquiring any voting stock from the beneficial owner of more than 5%
of the outstanding voting stock, except for acquisitions pursuant to a tender
offer to all holders of voting stock on the same price, terms and conditions,
acquisitions in compliance with Rule 10b-18 of the Securities Exchange Act of
1934 and acquisitions at a price not exceeding the market value per share.

     Article Sixteen prohibits the stockholders from acting by written consent
in lieu of a meeting.

     The affirmative vote of 80% of the voting shares is required to amend or
adopt any provision inconsistent with Articles Nine, Twelve, Fourteen and
Sixteen.

  Business Combinations with Interested Stockholders Under Delaware Law

     Section 203 of the Delaware General Corporation Law prevents a publicly
held corporation from engaging in a "business combination" with an "interested
stockholder" for a period of three years after the date of the transaction in
which the person became an interested stockholder, unless:

     - before the date on which the person became an interested stockholder, the
       board of directors of the corporation approved either the business
       combination or the transaction in which the person became an interested
       stockholder;

     - the interested stockholder owned at least 85% of the outstanding voting
       stock of the corporation at the beginning of the transaction in which it
       became an interested stockholder, excluding stock held by directors who
       are also officers of the corporation and by employee stock plans that do
       not provide participants with the rights to determine confidentially
       whether shares held subject to the plan will be tendered in a tender or
       exchange offer; or

     - on or after the date on which the interested stockholder became an
       interested stockholder, the business combination is approved by the board
       of directors and the holders of two-thirds of the outstanding voting
       stock of the corporation voting at a meeting, excluding the voting stock
       owned by the interested stockholder.

     As defined in Section 203, an "interested stockholder" is generally a
person owning 15% or more of the outstanding voting stock of the corporation. As
defined in Section 203, a "business combination" includes mergers,
consolidations, stock and assets sales and other transactions with the
interested stockholder.

     The provisions of Section 203 may have the effect of delaying, deferring or
preventing a change of control of Apache.

                                       14
<PAGE>   18

                        DESCRIPTION OF DEPOSITARY SHARES

     The following description, together with the applicable prospectus
supplements, summarizes all the material terms and provisions of the depositary
shares that we may offer under this prospectus and the related deposit
agreements and depositary receipts. Specific deposit agreements and depositary
receipts will contain additional important terms and provisions and will be
incorporated by reference into the registration statement which includes this
prospectus before we issue any depositary shares.

     This summary of depositary agreements, depositary shares and depositary
receipts relates to terms and conditions applicable to these types of securities
generally. The particular terms of any series of depositary shares will be
summarized in the applicable prospectus supplement. If indicated in the
applicable prospectus supplement, the terms of any series may differ from the
terms summarized below.

GENERAL

     We may elect to offer fractional shares of preferred stock rather than full
shares of preferred stock. If so, we will issue "depositary receipts" for these
"depositary shares." Each depositary share will represent a fraction of a share
of a particular series of preferred stock. Each holder of a depositary share
will be entitled, in proportion to the fraction of preferred stock represented
by that depositary share, to all the rights, preferences and privileges of the
preferred stock, including dividend, voting, redemption, conversion and
liquidation rights, if any, and all the limitations of the preferred stock. We
will enter into a deposit agreement with a depositary, which will be named in
the applicable prospectus supplement.

     In order to issue depositary shares, we will issue preferred stock and
immediately deposit these shares with the depositary. The depositary will then
issue and deliver depositary receipts to the persons who purchase depositary
shares. Each whole depositary share issued by the depositary may represent a
fraction of a share of preferred stock held by the depositary. The depositary
will issue depositary receipts in a form that reflects whole depositary shares,
and each depositary receipt may evidence any number of whole depositary shares.

     Pending the preparation of definitive engraved depositary receipts, if any,
a depositary may, upon our written order, issue temporary depositary receipts,
which will temporarily entitle the holders to all the rights pertaining to the
definitive depositary receipts. We will bear the costs and expenses of promptly
preparing definitive depositary receipts and of exchanging the temporary
depositary receipts for such definitive depositary receipts.

DIVIDENDS AND OTHER DISTRIBUTIONS

     The depositary will distribute all cash and non-cash distributions it
receives with respect to the underlying preferred stock to the record holders of
depositary shares in proportion to the number of depositary shares they hold,
subject to any obligations of the record holders to file proofs, certificates
and other information and to pay any taxes or other governmental charges. In the
case of any non-cash distribution, Apache may determine that the distribution
cannot be made proportionately or the depositary may determine that it may not
be feasible to make the distribution. If so, the depositary may, with our
approval, adopt a method it deems equitable and practicable to effect the
distribution, including the sale, public or private, of the securities or other
non-cash property it receives in the distribution at a place and on terms it
deems proper. The amounts distributed by the depositary will be reduced by any
amount required to be withheld by Apache or the depositary on account of taxes.

                                       15
<PAGE>   19

REDEMPTION OF DEPOSITARY SHARES

     If the shares of preferred stock that underlie the depositary shares are
redeemable and we redeem the preferred stock, the depositary will redeem the
depositary shares from the proceeds it receives from the redemption of the
preferred stock it holds. The depositary will redeem the number of depositary
shares that represent the amount of underlying preferred stock that we have
redeemed. The redemption price for depositary shares will be in proportion to
the redemption price per share that we paid for the underlying preferred stock.
If we redeem less than all of the depositary shares, the depositary will select
which depositary shares to redeem by lot, or some substantially equivalent
method.

     After a redemption date is fixed, the depositary shares to be redeemed no
longer will be considered outstanding. The rights of the holders of the
depositary shares will cease, except for the rights to receive money or other
property upon redemption. In order to redeem their depositary shares, holders
must surrender their depositary receipts to the depositary.

VOTING THE PREFERRED STOCK

     When the depositary receives notice about any meeting at which the holders
of preferred stock are entitled to vote, the depositary will mail the
information contained in the notice to the record holders of depositary shares
related to that preferred stock. Each record holder of depositary shares on the
record date, which will be the same date as the record date for the preferred
stock, will be entitled to instruct the depositary on how to vote the shares of
preferred stock represented by that holder's depositary shares. The depositary
will endeavor, to the extent practicable, to vote the preferred stock
represented by the depositary shares in accordance with these instructions. If
the depositary does not receive instructions from the holders of the depositary
shares, the depositary will abstain from voting the preferred stock that
underlies those depositary shares.

WITHDRAWAL OF PREFERRED STOCK

     If a holder of depositary receipts surrenders those depositary receipts at
the corporate office (as defined in the deposit agreement) of the depositary, or
any other office as the depositary may designate, and pays any taxes, charges or
fees, that holder is entitled to delivery at the corporate office of
certificates evidencing the number of shares of preferred stock, but only in
whole shares, and any money and other property represented by those depositary
receipts. If the depositary receipts we deliver evidence a number of depositary
shares in excess of the number of whole shares of preferred stock to be
withdrawn, the depositary will deliver to us at the same time a new depositary
receipt evidencing that excess number of depositary shares. We do not expect
that there will be any public trading market for the shares of preferred stock
except those represented by the depositary shares.

AMENDMENT AND TERMINATION OF THE DEPOSIT AGREEMENT

     Apache and the depositary can agree, at any time, to amend the form of
depositary receipt and any provisions of the deposit agreement. However, if an
amendment has a material adverse effect on the rights of the holders of related
depositary shares, the holders of at least a majority of the depositary shares
then outstanding must first approve the amendment. Every holder of a depositary
receipt at the time an amendment becomes effective will be bound by the amended
deposit agreement. However, subject to any conditions in the deposit agreement
or applicable law, no amendment can impair the right of any holder of a
depositary share to receive shares of the related preferred stock, or any money
or other property represented by the depositary shares, when they surrender
their depositary receipts.

     Unless otherwise specified in the applicable prospectus supplement, the
deposit agreement may be terminated by us or by the depositary if there has been
a final distribution in respect of
                                       16
<PAGE>   20

the preferred stock in connection with any liquidation, dissolution or winding
up of Apache and that distribution has been distributed to the holders of
depositary receipts.

CHARGES OF DEPOSITARY

     We will pay all transfer and other taxes and the government charges that
relate solely to the depositary arrangements. We will also pay the charges of
each depositary, including charges in connection with the initial deposit of the
related series of preferred stock, the initial issuance of the depositary
shares, and all withdrawals of shares of the related series of preferred stock.
However, holders of depositary shares will be required to pay transfer and other
taxes and government charges, as provided in the deposit agreement.

RESIGNATION AND REMOVAL OF DEPOSITARY

     The depositary may resign at any time. We may remove the depositary at any
time. Any resignation or removal will take effect when we appoint a successor
depositary. We must appoint the successor depositary within 60 days after
delivery of the notice of resignation or removal. The successor depositary must
be a bank or trust company that has its principal office in the United States
and has a combined capital and surplus of at least $50,000,000.

MISCELLANEOUS

     We will be required to furnish certain information to the holders of the
preferred stock underlying any depositary shares. The depositary, as the holder
of the underlying preferred stock, will forward any report or information it
receives from us to the holders of depositary shares.

     Neither the depositary nor Apache will be liable if its ability to perform
its obligations under the deposit agreement is prevented or delayed by law or
any circumstance beyond its control. Both Apache and the depositary will be
obligated to use their best judgment and to act in good faith in performing its
duties under the deposit agreement. Each of Apache and the depositary will be
liable only for gross negligence and willful misconduct in performing their
duties under the deposit agreement. They will not be obligated to appear in,
prosecute or defend any legal proceeding with respect to any depositary
receipts, depositary shares or preferred stock unless they receive what they, in
their sole discretion, determine to be a satisfactory indemnity from one or more
holders of the depositary shares. Apache and the depositary will evaluate any
proposed indemnity in order to determine whether the financial protection
afforded by the indemnity is sufficient to reduce each party's risk to a
satisfactory and customary level. Apache and the depositary may rely on the
advice of legal counsel or accountants of their choice. They may also rely on
information provided by persons they believe, in good faith, to be competent,
and on documents they believe, in good faith, to be genuine.

     The applicable prospectus supplement will identify the depositary's
corporate trust office. Unless the prospectus supplement indicates otherwise,
the depositary will act as transfer agent and registrar for depositary receipts,
and if we redeem shares of preferred stock, the depositary will act as
redemption agent for the corresponding depositary receipts.

TITLE

     Apache, each depositary and any agent of Apache or the applicable
depositary may treat the registered owner of any depositary share as the
absolute owner of the depositary shares for all purposes, including making
payment, regardless of whether any payment in respect of the depositary share is
overdue and regardless of any notice to the contrary. See "Book-Entry
Securities" below.

                                       17
<PAGE>   21

                         DESCRIPTION OF DEBT SECURITIES

     The following description, together with any applicable prospectus
supplement, summarizes all the material terms and provisions of the debt
securities that we may offer under this prospectus and the related trust
indentures. We will issue the senior debt securities under a senior indenture,
dated as of November 2, 1995, as supplemented on October 31, 1996, between us
and The Chase Manhattan Bank, as trustee. We will issue the subordinated debt
securities under a subordinated indenture to be executed in the future by us and
The Chase Manhattan Bank, as trustee. The senior indenture and the subordinated
indenture are together referred to in this prospectus as the "indentures." The
senior debt securities and the subordinated debt securities are collectively
referred to in this prospectus as the "debt securities." The Chase Manhattan
Bank, in its capacity as trustee under either or both of the indentures, is
referred to as the "trustee" for purposes of this section. The indentures
contain additional important terms and provisions and are filed as exhibits to
the registration statement that includes this prospectus.

     This summary of the indentures and the debt securities relates to terms and
conditions applicable to the debt securities generally. The particular terms of
any series of debt securities will be summarized in the applicable prospectus
supplement. If indicated in the prospectus supplement, the terms of any series
may differ from the terms summarized below.

     Neither indenture limits the amount of debt securities we may issue under
it, and each provides that additional debt securities of any series may be
issued up to the aggregate principal amount that we authorize from time to time.
Debt securities may also be issued pursuant to the indentures in transactions
exempt from the registration requirements of the Securities Act of 1933. Those
debt securities will not be considered in determining the aggregate amount of
securities issued under this prospectus.

     Unless otherwise indicated in the applicable prospectus supplement, we will
issue the debt securities in denominations of $1,000 or integral multiples of
$1,000.

     Principal and any premium and interest in respect to the debt securities
will be payable, and the debt securities will be transferable, at the corporate
trust office of the trustee, unless we specify otherwise in the applicable
prospectus supplement. At our option, however, payment of interest may be made
by check mailed to the registered holders of the debt securities at their
registered addresses.

     We will describe special U.S. federal income tax and other considerations
relating to debt securities denominated in foreign currencies or units of two or
more foreign currencies in the applicable prospectus supplement.

     Unless we specify otherwise in the applicable prospectus supplement, the
covenants contained in the indentures and the debt securities will not provide
special protection to holders of debt securities if we enter into a highly
leveraged transaction, recapitalization or restructuring.

GENERAL

     The prospectus supplement relating to the particular series of debt
securities being offered will specify whether they are senior or subordinated
debt securities and the amounts, prices and terms of those debt securities.
These terms may include:

     - the designation, aggregate principal amount and authorized denominations
       of the debt securities;

     - the date or dates on which the debt securities will mature;

     - the percentage of the principal amount at which the debt securities will
       be issued;

     - the date on which the principal of the debt securities will be payable;

                                       18
<PAGE>   22

     - whether the debt securities will be issued as registered securities,
       bearer securities or a combination of the two;

     - whether the debt securities will be issued in the form of one or more
       global securities and whether such global securities will be issued in a
       temporary global form or permanent global form;

     - the currency or currencies or currency unit or units of two or more
       currencies in which debt securities are denominated, for which they may
       be purchased, and in which principal and any premium and interest is
       payable;

     - if the currency or currencies or currency unit or units for which debt
       securities may be purchased or in which principal and any premium
       interest may be paid is at our election or at the election of a
       purchaser, the manner in which an election may be made and its terms;

     - the annual rate or rates, which may be fixed or variable, or the method
       of determining the rate or rates at which the debt securities will bear
       any interest, whether by remarketing, auction, formula or otherwise;

     - the date or dates from which any interest will accrue and the date or
       dates on which such interest will be payable;

     - a description of any provisions providing for redemption, exchange or
       conversion of the debt securities at our option, a holder's option or
       otherwise, and the terms and provisions of such a redemption, exchange or
       conversion;

     - information with respect to book-entry procedures relating to global debt
       securities;

     - any sinking fund terms;

     - whether and under what circumstances we will pay "additional amounts," as
       defined in the indentures, on the debt securities to any holder who is a
       "United States alien," as defined in the indentures, in respect of any
       tax, assessment or governmental charge; the term "interest," as used in
       this prospectus, includes any additional amounts;

     - any events of default or covenants of Apache with respect to the debt
       securities of a certain series that are different from those described in
       this prospectus;

     - if either or both of the sections of the applicable indenture relating to
       defeasance and covenant defeasance are not applicable to the debt
       securities, or if any covenants in addition to or other than those
       specified in the applicable indenture shall be subject to covenant
       defeasance;

     - any deletions from, or modifications or additions to, the provisions of
       the indentures relating to satisfaction and discharge in respect of the
       debt securities;

     - any index or other method used to determine the amount of payments of
       principal of, and any premium and interest on, the debt securities; and

     - any other specific terms of the debt securities.

     We are not obligated to issue all debt securities of any one series at the
same time. The debt securities of any one series may not bear interest at the
same rate or mature on the same date.

     If any of the debt securities are sold for foreign currencies or foreign
currency units or if the principal of, or any premium or interest on, any series
of debt securities is payable in foreign currencies or foreign currency units,
we will describe the restrictions, elections, tax consequences, specific terms
and other information with respect to those debt securities and such foreign
currencies or foreign currency units in the applicable prospectus supplement.
                                       19
<PAGE>   23

     Other than as described below under "The Senior Indenture Limits Our
Ability to Incur Liens," "The Senior Indenture Limits Our Ability to Engage in
Sale/Leaseback Transactions" and "We Are Obligated to Purchase Debt Securities
upon a Change in Control," and as may be described in the applicable prospectus
supplement, the indentures do not limit our ability to incur indebtedness or
afford holders of debt securities protection in the event of a decline in our
credit quality or if we are involved in a takeover, recapitalization or highly
leveraged or similar transaction. The prospectus supplement relating to the
particular series of debt securities, to the extent not otherwise described in
this prospectus, will include any information with respect to any deletions
from, modifications of or additions to the covenants or events of default
described below and contained in the applicable indenture, including any
addition of a covenant or other provision providing event risk or similar
protection.

RANKING

  Senior Debt Securities

     Unless otherwise indicated in the applicable prospectus supplement, our
obligation to pay the principal of, and any premium and interest on, the senior
debt securities will be unsecured and will rank equally with all of our other
unsecured unsubordinated indebtedness.

  Subordinated Debt Securities

     Our obligation to pay the principal of, and any premium and interest on,
any subordinated debt securities will be unsecured and will rank subordinate and
junior in right of payment to all senior indebtedness to the extent provided in
the subordinated indenture and the terms of those subordinated debt securities,
as described below and in any applicable prospectus supplement, which may make
deletions from, modifications of or additions to the subordination terms
described below.

     Upon any payment or distribution of assets or securities of Apache to
creditors upon any liquidation, dissolution, winding-up, reorganization, or any
bankruptcy, insolvency, receivership or similar proceedings in connection with
any insolvency or bankruptcy proceeding of Apache, the holders of senior
indebtedness will first be entitled to receive payment in full of the senior
indebtedness before the holders of subordinated debt securities will be entitled
to receive any payment or distribution in respect of the subordinated debt
securities.

     In the event of the acceleration of the maturity of subordinated debt
securities, the holders of all senior indebtedness outstanding at the time of
the acceleration will first be entitled to receive payment in full of the senior
indebtedness before the holders of subordinated debt securities will be entitled
to receive or retain any payment in respect of the subordinated debt securities.

     No payments on account of principal or any premium or interest in respect
of the subordinated debt securities may be made if there has occurred and is
continuing a default in any payment with respect to senior indebtedness or an
event of default with respect to any senior indebtedness resulting in the
acceleration of its maturity, or if any judicial proceeding is pending with
respect to any default.

     "Indebtedness," for purposes of the subordinated indenture, means:

     - every obligation of Apache for money borrowed;

     - every obligation of Apache evidenced by bonds, debentures, notes or other
       similar instruments, including obligations incurred in connection with
       the acquisition of property, assets or businesses;

     - every reimbursement obligation of Apache with respect to letters of
       credit, banker's acceptances or similar facilities issued for the account
       of Apache;

                                       20
<PAGE>   24

     - every obligation of Apache issued or assumed as the deferred purchase
       price of property or services, excluding trade accounts payable or
       accrued liabilities arising in the ordinary course of business;

     - every capital lease obligation of Apache;

     - all indebtedness of Apache, whether incurred on or prior to the date of
       the subordinated indenture or thereafter incurred, for claims in respect
       of derivative products, including interest rate, foreign exchange rate
       and commodity forward contracts, options and swaps and similar
       arrangements;

     - every obligation of the type referred to in the bullet points above of
       another person and all dividends of another person the payment of which,
       in either case, Apache has guaranteed or is responsible or liable for,
       directly or indirectly, as obligor or otherwise;

     - obligations of the type referred to in the bullet points above of another
       person secured by any lien on any property or asset of Apache, whether or
       not the obligation is assumed by Apache; and

     - all deferrals, renewals, extensions and refundings of, and amendments,
       modifications and supplements to, any of the foregoing obligations.

     "Senior indebtedness," for purposes of the subordinated indenture, means
all indebtedness, whether outstanding on the date of execution of the
subordinated indenture or thereafter created, assumed or incurred, except
indebtedness ranking equally with the subordinated debentures or indebtedness
ranking junior to the subordinated debt securities.

     "Indebtedness ranking equally with the subordinated debt securities," for
purposes of the subordinated indenture, means:

     - indebtedness, whether outstanding on the date of execution of the
       subordinated indenture or thereafter created, assumed or incurred, to the
       extent the indebtedness specifically by its terms ranks equally with and
       not prior to the subordinated debt securities in the right of payment
       upon the happening of the dissolution, winding-up, liquidation or
       reorganization of Apache; and

     - all other subordinated debt securities issued under the subordinated
       indenture, and guarantees in respect of those subordinated debt
       securities, issued to any other Apache trust or its trustee, partnership
       or other entity affiliated with Apache that is a financing vehicle of
       Apache in connection with the issuance by such financing entity of equity
       securities or other subordinated debt securities guaranteed by Apache
       pursuant to an instrument that ranks equally with or junior in right of
       payment to the guarantees.

The securing of any indebtedness otherwise constituting indebtedness ranking
equally with the subordinated debt securities will not prevent the indebtedness
from constituting indebtedness ranking equally with the subordinated debt
securities.

     "Indebtedness ranking junior to the subordinated debt securities," for
purposes of the subordinated indenture, means any indebtedness, whether
outstanding on the date of execution of the subordinated indenture or thereafter
created, assumed or incurred, to the extent the indebtedness by its terms ranks
junior to and not equally with or prior to

     - the subordinated debt securities, and

     - any other indebtedness ranking equally with the subordinated debt
       securities,

in right of payment upon the happening of the dissolution, winding-up,
liquidation or reorganization of Apache. The securing of any indebtedness
otherwise constituting indebtedness

                                       21
<PAGE>   25

ranking junior to the subordinated debt securities will not prevent the
indebtedness from constituting indebtedness ranking junior to the subordinated
debt securities.

INTEREST RATES AND DISCOUNTS

     The debt securities will earn interest at a fixed or floating rate or rates
for the period or periods of time specified in the applicable prospectus
supplement. Unless otherwise specified in the applicable prospectus supplement,
the debt securities will bear interest on the basis of a 360-day year consisting
of twelve 30-day months.

     We may sell debt securities at a substantial discount below their stated
principal amount, bearing no interest or interest at a rate that at the time of
issuance is below market rates. Federal income tax consequences and special
considerations that apply to any series will be described in the applicable
prospectus supplement.

EXCHANGE, REGISTRATION AND TRANSFER

     Registered securities of any series that are not global securities will be
exchangeable for other registered securities of the same series and of like
aggregate principal amount and tenor in different authorized denominations. In
addition, if debt securities of any series are issuable as both registered
securities and bearer securities, the holder may choose, upon written request,
and subject to the terms of the applicable indenture, to exchange bearer
securities and the appropriate related coupons of that series into registered
securities of the same series of any authorized denominations and of like
aggregate principal amount and tenor. Bearer securities with attached coupons
surrendered in exchange for registered securities between a regular record date
or a special record date and the relevant date for interest payment shall be
surrendered without the coupon relating to the interest payment date. Interest
will not be payable with respect to the registered security issued in exchange
for that bearer security. That interest will be payable only to the holder of
the coupon when due in accordance with the terms of the indenture. Bearer
securities will not be issued in exchange for registered securities.

     You may present registered securities for registration of transfer,
together with a duly executed form of transfer, at the office of the security
registrar or at the office of any transfer agent designated by us for that
purpose with respect to any series of debt securities and referred to in the
applicable prospectus supplement. This may be done without service charge but
upon payment of any taxes and other governmental charges as described in the
applicable indenture. The security registrar or the transfer agent will effect
the transfer or exchange upon being satisfied with the documents of title and
identity of the person making the request. We have appointed the trustee as
security registrar for each indenture. If a prospectus supplement refers to any
transfer agents initially designated by us with respect to any series of debt
securities in addition to the security registrar, we may at any time rescind the
designation of any of those transfer agents or approve a change in the location
through which any of those transfer agents acts. However, if debt securities of
a series are issuable solely as registered securities, we will be required to
maintain a transfer agent in each place of payment for that series, and if debt
securities of a series are issuable as bearer securities, we will be required to
maintain a transfer agent in a place of payment for that series located in
Europe in addition to the security registrar. We may at any time designate
additional transfer agents with respect to any series of debt securities.

     In the event of any redemption, we will not be required to:

     - issue, register the transfer of or exchange debt securities of any series
       during a period beginning at the opening of business 15 days before any
       selection of debt securities of that series to be redeemed and ending at
       the close of business on the day of mailing of the relevant notice of
       redemption; or

                                       22
<PAGE>   26

     - register the transfer of or exchange any registered security, or portion
       thereof, called for redemption, except the unredeemed portion of any
       registered security being redeemed in part.

PAYMENT AND PAYING AGENTS

     Unless we specify otherwise in the applicable prospectus supplement,
payment of principal of, and any premium and interest on, bearer securities will
be payable in accordance with any applicable laws and regulations, at the
offices of those paying agents outside the United States that we may designate
at various times. We will make interest payments on bearer securities and the
attached coupons on any interest payment date only against surrender of the
coupon relating to that interest payment date. No payment with respect to any
bearer security will be made at any of our offices or agencies in the United
States by check mailed to any U.S. address or by transfer to an account
maintained with a bank located in the United States. If, however, but only if,
payment in U.S. dollars of the full amount of principal of, and any premium and
interest on, bearer securities denominated and payable in U.S. dollars at all
offices or agencies outside the United States is illegal or effectively
precluded by exchange controls or other similar restrictions, then those
payments will be made at the office of our paying agent in the Borough of
Manhattan, The City of New York.

     Unless we specify otherwise in the applicable prospectus supplement,
payment of principal of, and any premium and interest on, registered securities
will be made at the office of the paying agent or paying agents that we
designate at various times. However, at our option, we may make interest
payments by check mailed to the address, as it appears in the security register,
of the person entitled to the payments. Unless we specify otherwise in the
applicable prospectus supplement, we will make payment of any installment of
interest on registered securities to the person in whose name that registered
security is registered at the close of business on the regular record date for
such interest.

     Unless we specify otherwise in the applicable prospectus supplement, the
Corporate Trust Office of the trustee in the Borough of Manhattan, The City of
New York, will be designated:

     - as our sole paying agent for payments with respect to debt securities
       that are issuable solely as registered securities; and

     - as our paying agent in the Borough of Manhattan, The City of New York,
       for payments with respect to debt securities, subject to the limitation
       described above in the case of bearer securities, that are issuable
       solely as bearer securities or as both registered securities and bearer
       securities.

     We will name any paying agents outside the United States and any other
paying agents in the United States initially designated by us for the debt
securities in the applicable prospectus supplement. We may at any time designate
additional paying agents or rescind the designation of any paying agent or
approve a change in the office through which any paying agent acts. However, if
debt securities of a series are issuable solely as registered securities, we
will be required to maintain a paying agent in each place of payment for that
series. If debt securities of a series are issuable as bearer securities, we
will be required to maintain:

     - a paying agent in the Borough of Manhattan, The City of New York, for
       payments with respect to any registered securities of the series and for
       payments with respect to bearer securities of the series in the
       circumstance described above, but not otherwise; and

     - a paying agent in a place of payment located outside the United States
       where debt securities of that series and any attached coupons may be
       presented and surrendered for payment.

     However, if the debt securities of that series are listed on the London
Stock Exchange, the Luxembourg Stock Exchange or any other stock exchange
located outside the United States, and
                                       23
<PAGE>   27

if the stock exchange requires it, we will maintain a paying agent in London or
Luxembourg or any other required city located outside the United States for
those debt securities.

     All monies we pay to a paying agent for the payment of principal of, and
any premium or interest on, any debt security or coupon that remains unclaimed
at the end of two years after becoming due and payable will be repaid to us.
After that time, the holder of the debt security or coupon will look only to us
for payments out of those repaid amounts.

GLOBAL SECURITIES

     The debt securities of a series may be issued in whole or in part in the
form of one or more global certificates that we will deposit with a depositary
identified in the applicable prospectus supplement. Global securities may be
issued in either registered or bearer form and in either temporary or permanent
form. Unless and until it is exchanged in whole or in part for the individual
debt securities it represents, a global security may not be transferred except
as a whole:

     - by the applicable depositary to a nominee of the depositary;

     - by any nominee to the depositary itself or another nominee; or

     - by the depositary or any nominee to a successor depositary or any nominee
       of the successor.

     We will describe the specific terms of the depositary arrangement with
respect to a series of debt securities in the applicable prospectus supplement.
We anticipate that the following provisions will generally apply to depositary
arrangements.

     When we issue a global security in registered form, the depositary for the
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 that global security to the accounts of participants
that have accounts with the depositary. Those accounts will be designated by the
dealers, underwriters or agents with respect to the underlying debt securities
or by us if those debt securities are offered and sold directly by us. Ownership
of beneficial interests in a global security will be limited to participants or
persons that may hold interests through participants. For interests of
participants, ownership of beneficial interests in the global security will be
shown on records maintained by the applicable depositary or its nominee. For
interests of persons other than participants, that ownership information will be
shown on the records of participants. Transfer of that ownership will be
effected only through those records. The laws of some states require that
certain purchasers of securities take physical delivery of securities in
definitive form. These limits and laws may impair our ability to transfer
beneficial interests in a global security.

     As long as the depositary for a global security, or its nominee, is the
registered owner of that global security, the depositary or nominee will be
considered the sole owner or holder of the debt securities represented by the
global security for all purposes under the applicable indenture. Except as
provided below, owners of beneficial interests in a global security:

     - will not be entitled to have any of the underlying debt securities
       registered in their names;

     - will not receive or be entitled to receive physical delivery of any of
       the underlying debt securities in definitive form; and

     - will not be considered the owners or holders under the indenture relating
       to those debt securities.

     Payments of principal of, and any premium and interest 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
registered owner of the global security representing such debt securities.
Neither we, the trustee, any paying agent nor the registrar for the debt

                                       24
<PAGE>   28

securities will be responsible for any aspect of the records relating to or
payments made by the depositary or any participants on account of beneficial
interests of the global security.

     We expect that the depositary or its nominee, upon receipt of any payment
of principal, premium or interest relating to a permanent global security
representing any series of debt securities, immediately will credit
participants' accounts with the payments. Those payments will be credited in
amounts proportional to the respective beneficial interests of the participants
in the principal amount of the global security as shown on the records of the
depositary or its nominee. We also expect that payments by participants to
owners of beneficial interests in the global security held through those
participants will be governed by standing instructions and customary practices.
This is now the case with securities held for the accounts of customers in
bearer form or registered in "street name." Those payments will be the sole
responsibility of those participants.

     If the depositary for a series of debt securities is at any time unwilling,
unable or ineligible to continue as depositary and we do not appoint a successor
depositary within 90 days, we will issue individual debt securities of that
series in exchange for the global security or securities representing that
series. In addition, we may at any time in our sole discretion determine not to
have any debt securities of a series represented by one or more global
securities. In that event, we will issue individual debt securities of that
series in exchange for the global security or securities. Further, if we
specify, an owner of a beneficial interest in a global security may, on terms
acceptable to us, the trustee and the applicable depositary, receive individual
debt securities of that series in exchange for those beneficial interests. The
foregoing is subject to any limitations described in the applicable prospectus
supplement. In that instance, the owner of the beneficial interest will be
entitled to physical delivery of individual debt securities equal in principal
amount to the beneficial interest and to have the debt securities registered in
its name. Those individual debt securities will be issued in denominations,
unless we specify otherwise, of $1,000 or integral multiples of $1,000.

     For a description of the depositary arrangements for global securities held
by The Depository Trust Company, see "Book-Entry Securities."

THE SENIOR INDENTURE LIMITS OUR ABILITY TO INCUR LIENS

     Nothing in the indentures or the debt securities will in any way limit the
amount of indebtedness or securities that we or our subsidiaries, as defined in
each indenture, may incur or issue. Unless we specify otherwise in the
applicable prospectus supplement, the senior indenture provides that neither we
nor any of our subsidiaries may issue, assume or guarantee any notes, bonds,
debentures or other similar evidences of indebtedness for money borrowed that
are secured by a mortgage, lien, pledge, security interest or other
encumbrance -- defined in the indenture as "liens" -- upon any of our property
unless we provide that any and all senior debt securities then outstanding shall
be secured by a lien equally and ratably with any and all other obligations by
the lien. The restrictions on liens will not, however, apply to:

     - liens existing on the date of the senior indenture or provided for under
       the terms of agreements existing on the date thereof;

     - liens securing all or part of the cost of exploring, producing,
       gathering, processing, marketing, drilling or developing any of our or
       our subsidiaries' properties, or securing indebtedness incurred to
       provide funds therefor or indebtedness incurred to finance all or part of
       the cost of acquiring, constructing, altering, improving or repairing any
       such property or assets, or securing indebtedness incurred to provide
       funds therefor;

     - liens securing only indebtedness owed by one of our subsidiaries to us
       and/or to one or more of our other subsidiaries;

                                       25
<PAGE>   29

     - liens on the property of any corporation or other entity existing at the
       time it becomes our subsidiary;

     - liens on any property to secure indebtedness incurred in connection with
       the construction, installation or financing of pollution control or
       abatement facilities or other forms of industrial revenue bond financing
       or indebtedness issued or guaranteed by the United States, any state or
       any department, agency or instrumentality of either or indebtedness
       issued to or guaranteed for the benefit of a foreign government, any
       state or any department, agency or instrumentality of either or an
       international finance agency or any division or department thereof,
       including the World Bank, the International Finance Corp. and the
       Multilateral Investment Guarantee Agency;

     - any extension, renewal or replacement or successive extensions, renewals
       or replacements of any lien referred to in the foregoing clauses that
       existed on the date of the senior indenture;

     - certain other liens incurred in the ordinary course of business; or

     - liens which secure "limited recourse indebtedness," as defined in the
       senior indenture.

     In addition, the following types of transactions, among others, shall not
be deemed to create indebtedness secured by liens:

     - the sale or other transfer of crude oil, natural gas or other petroleum
       hydrocarbons in place for a period of time until, or in an amount such
       that, the transferee will receive as a result of the transfer a specified
       amount of money or of such crude oil, natural gas or other petroleum
       hydrocarbons;

     - the sale or other transfer of any other interest in property of the
       character commonly referred to as a production payment, overriding
       royalty, forward sale or similar interest; and

     - liens required by any contract or statute in order to permit us or one of
       our subsidiaries to perform any contract or subcontract made by it with
       or at the request of the U.S. government or any foreign government or
       international finance agency, any state or any department thereof, or any
       agency or instrumentality of either, or to secure partial, progress,
       advance or other payments to us or one of our subsidiaries by any of
       these entities pursuant to the provisions of any contract or statute.

THE SENIOR INDENTURE LIMITS OUR ABILITY TO ENGAGE IN SALE/LEASEBACK TRANSACTIONS

     Unless we specify otherwise in the applicable prospectus supplement, the
senior debt indenture provides that neither we nor any of our subsidiaries will
enter into any arrangement with any person, other than us or one of our
subsidiaries, to lease any property to ourselves or a subsidiary of ours for
more than three years. For the restriction to apply, we or one of our
subsidiaries must sell or plan to sell the property to the person leasing it to
us or our subsidiary or to another person to which funds have been or are to be
advanced on the security of the leased property. The limitation does not apply
where:

     - either we or our subsidiary would be entitled to create debt secured by a
       lien on the property to be leased in a principal amount equal to or
       exceeding the value of that sale/leaseback transaction;

     - since the date of the senior indenture and within a period commencing six
       months prior to the consummation of that arrangement and ending six
       months after the consummation of the arrangement, we have or our
       subsidiary has expended for any property an amount up to the net proceeds
       of that arrangement, including amounts expended for the acquisition,
       exploration, drilling or development thereof, and for additions,
       alterations, improvements and repairs to the property, and we designate
       such amount as a credit against that
                                       26
<PAGE>   30

       arrangement, with any of that amount not being so designated to be
       applied as set forth in the next item; or

     - during or immediately after the expiration of the 12 months after the
       effective date of that transaction, we apply to the voluntary redemption,
       defeasance or retirement of the senior debt securities and/or other
       senior indebtedness, as defined in the senior indenture, an amount equal
       to the greater of the net proceeds of the sale or transfer of the
       property leased in that transaction or the fair value of such property at
       the time of entering into such transaction, in either case adjusted to
       reflect the remaining term of the lease and any amount we utilize as set
       forth in the prior item; the amount will be reduced by the principal
       amount of senior indebtedness we voluntarily retire within that 12-month
       period.

EACH INDENTURE INCLUDES EVENTS OF DEFAULT

     Unless otherwise specified in the applicable prospectus supplement, any one
of the following events will constitute an "event of default" under each
indenture with respect to the debt securities of any series issued under that
indenture:

     - if we fail to pay any interest on any debt security of that series when
       due, and the failure continues for 30 days;

     - if we fail to pay principal of or any premium on the debt securities of
       that series when due and payable, either at maturity or otherwise;

     - if we fail to perform or we breach any of our other covenants or
       warranties in the applicable indenture or in the debt securities of that
       series -- other than a covenant or warranty included in the applicable
       indenture solely for the benefit of a series of securities other than the
       debt securities of that series -- and that breach of failure continues
       for 60 days after written notice as provided in the applicable indenture;

     - certain events of bankruptcy, insolvency or reorganization involving us
       or any of our subsidiaries; and

     - any other event of default provided with respect to the debt securities
       of that series.

     Unless otherwise specified in the applicable prospectus supplement, either
of the following two events will constitute an "event of default" under the
senior indenture with respect to any senior debt securities:

     - if any of our or any of our subsidiaries' indebtedness, as defined in the
       senior indenture, in excess of an aggregate of $25,000,000 in principal
       amount is accelerated under any event of default as defined in any
       mortgage, indenture or instrument and the acceleration has not been
       rescinded or annulled within 30 days after written notice as provided in
       the senior indenture has been given specifying such event of default and
       requiring us to cause that acceleration to be rescinded or annulled; or

     - if we or any of our subsidiaries fail to pay, bond or otherwise discharge
       within 60 days of entry, a judgment, court order or uninsured monetary
       damage award against us in excess of an aggregate of $25,000,000 which is
       not stayed on appeal or otherwise being appropriately contested in good
       faith.

     If an event of default with respect to the debt securities of any series,
other than an event of default described in the item above pertaining to certain
events of bankruptcy, insolvency or reorganization, occurs and is continuing,
either the trustee or the holders of at least 25% in aggregate principal amount
of the outstanding debt securities of that series may declare the principal
amount of the debt securities of that series to be due and payable immediately.
At any time after a declaration of acceleration has been made, but before a
judgment or decree for payment of money has been obtained by the trustee, and
subject to applicable law and certain

                                       27
<PAGE>   31

other provisions of the applicable indenture, the holders of a majority in
aggregate principal amount of the debt securities of that series may, under
certain circumstances, rescind and annul such acceleration. If an event of
default occurs pertaining to certain events of bankruptcy, insolvency or
reorganization, the principal amount and accrued interest -- or a lesser amount
as provided for in the debt securities of that series -- shall be immediately
due and payable without any declaration or other act by the trustee or any
holder.

     Within 90 days after the occurrence of any event of default under either
indenture with respect to the debt securities of any series issued under that
indenture, the trustee must transmit notice of the event of default to the
holders of the debt securities of that series unless the event of default has
been cured or waived. The trustee may withhold the notice, however, except in
the case of a payment default, if and so long as the board of directors, the
executive committee or a trust committee of directors or responsible officers of
the trustee has in good faith determined that the withholding of the notice is
in the interest of the holders of debt securities of that series.

     If an event of default occurs and is continuing with respect to the debt
securities of any series, the trustee may in its discretion proceed to protect
and enforce its rights and the rights of the holders of debt securities of that
series by all appropriate judicial proceedings.

     Subject to the duty of the trustee during any default to act with the
required standard of care, the trustee is under no obligation to exercise any of
its rights or powers under either indenture at the request or direction of any
of the holders of debt securities issued under that indenture, unless the
holders offer the trustee reasonable indemnity. Subject to indemnifying the
trustee, and subject to applicable law and certain other provisions of each
indenture, the holders of a majority in aggregate principal amount of the
outstanding debt securities of a series issued under that indenture 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, with
respect to the debt securities of that series.

WE ARE OBLIGATED TO PURCHASE DEBT SECURITIES UPON A CHANGE IN CONTROL

     If a change in control, as defined in each indenture, occurs, we must mail
within 15 days a written notice regarding the change in control to the trustee
and to every holder of the debt securities of each series issued under that
indenture. The notice must also be published at least once in an authorized
newspaper, as defined in each indenture, and must state:

     - the event causing the change in control and the date of the event;

     - the date by which notice of the change in control is required by the
       applicable indenture to be given;

     - the date, 35 business days after the occurrence of the change in control,
       by which we must purchase debt securities we are obligated to purchase
       pursuant to the selling holder's exercise of rights on change in control;

     - the price we must pay for the debt securities we are obligated to
       purchase;

     - the name and address of the trustee;

     - the procedure for surrendering debt securities to the trustee or other
       designated office or agent for payment;

     - a statement of our obligation to make prompt payment on proper surrender
       of the debt securities;

     - the procedure for holders' exercise of rights of sale of the debt
       securities; and

     - the procedures by which a holder may withdraw such a notice after it is
       given.

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<PAGE>   32

     After we give this notice we will be obligated, at the election of each
holder, to purchase the applicable debt securities. Under each indenture, a
change in control is deemed to have occurred when:

     - any event requiring the filing of any report under or in response to
       Schedule 13D or 14D-1 pursuant to the Securities Exchange Act of 1934
       disclosing beneficial ownership of either 50% or more of our common stock
       then outstanding or 50% or more of the voting power of our voting stock
       then outstanding;

     - the completion of any sale, transfer, lease, or conveyance of our
       properties and assets substantially as an entirety to any person or
       persons that is not our subsidiary, as those terms are defined in each
       indenture; or

     - the completion of a consolidation or merger of Apache with or into any
       other person or entity in a transaction in which either we are not the
       sole surviving corporation or our common stock existing before the
       transaction is converted into cash, securities or other property and in
       which those exchanging our common stock do not, as a result of the
       transaction, receive either 75% or more of the survivor's common stock or
       75% or more of the voting power of the survivor's voting stock.

     We will not purchase any debt securities if there has occurred and is
continuing an event of default under either indenture, other than default in
payment of the purchase price payable for the debt securities upon change in
control. In connection with any purchase of debt securities after a change in
control, we will comply with all federal and state securities laws, including,
specifically, Rule 13e-4, if applicable, of the Securities Exchange Act, and any
related Schedule 13E-4 required to be submitted under that rule.

DISCHARGE, DEFEASANCE AND COVENANT DEFEASANCE

     We may discharge certain obligations to holders of any series of debt
securities that have not already been delivered to the trustee for cancellation
and that:

     - have become due and payable;

     - will become due and payable within one year; or

     - are scheduled for redemption within one year.

To discharge the obligations with respect to a series of debt securities, we
must deposit with the trustee, in trust, an amount of funds in U.S. dollars or
in the foreign currency in which those debt securities are payable sufficient to
pay the entire amount of principal of, and any premium or interest on, those
debt securities to the date of the deposit if those debt securities have become
due and payable or to the maturity of the debt securities, as the case may be.

     Unless we specify otherwise in the applicable prospectus supplement, we may
elect

     - to defease and be discharged from any and all obligations with respect to
       those debt securities, which we refer to as "legal defeasance"; or

     - with respect to any debt securities, to be released from our covenant
       obligations, as may be provided for under Section 301 of either
       indenture, which we refer to as "covenant defeasance"; or,

     - to be released from our obligations under the covenants described above
       in "The Senior Indenture Limits Our Ability to Incur Liens" and "The
       Senior Indenture Limits Our Ability to Engage in Sale/Leaseback
       Transactions," if any, which we also refer to as "covenant defeasance."

                                       29
<PAGE>   33

     In the case of legal defeasance we will still retain some obligations in
respect of the debt securities, including our obligations:

     - to pay additional amounts, if any, upon the occurrence of certain events
       of taxation, assessment or governmental charge with respect to payments
       on the debt securities;

     - to register the transfer or exchange of the debt securities;

     - to replace temporary or mutilated, destroyed, lost or stolen debt
       securities; and

     - to maintain an office or agency with respect to the debt securities and
       to hold monies for payment in trust.

     After a covenant defeasance, any omission to comply with the obligations or
covenants that have been defeased shall not constitute a default or an event of
default with respect to the debt securities.

     To elect either legal defeasance or covenant defeasance we must deposit
with the trustee, in trust, an amount, in U.S. dollars or in the foreign
currency in which the relevant debt securities are payable at stated maturity,
or in government obligations, as defined below, or both, applicable to such debt
securities which through the scheduled payment of principal and interest in
accordance with their terms will provide money in an amount sufficient to pay
the principal of and any premium and interest on those debt securities on their
scheduled due dates.

     In addition, we can only elect legal defeasance or covenant defeasance if,
among other things:

     - the applicable defeasance does not result in a breach or violation of, or
       constitute a default under, the applicable indenture or any other
       material agreement or instrument to which we are a party or by which we
       are bound;

     - no default or event of default with respect to the debt securities to be
       defeased shall have occurred and be continuing on the date of the
       establishment of the trust and, with respect to legal defeasance only, at
       any time during the period ending on the 91st day after the date of the
       establishment of the trust; and

     - we have delivered to the trustee an opinion of counsel to the effect that
       the holders of the debt securities will not recognize income, gain or
       loss for U.S. federal income tax purposes as a result of the defeasance
       and will be subject to U.S. federal income tax on the same amounts, in
       the same manner and at the same times as would have been the case if the
       defeasance had not occurred, and the opinion of counsel, in the case of
       legal defeasance, must refer to and be based upon a letter ruling of the
       Internal Revenue Service received by us, a Revenue Ruling published by
       the Internal Revenue Service or a change in applicable U.S. federal
       income tax law occurring after the date of the applicable indenture.

     Each indenture deems a foreign currency to be any currency, currency unit
or composite currency, including, without limitation, the ECU and euro, issued
by the government of one or more countries other than the United States or by
any recognized confederation or association of governments.

     Each indenture defines government obligations as securities which are not
callable or redeemable at the option of the issuer or issuers and are:

     - direct obligations of the United States or the government or the
       governments in the confederation which issued the foreign currency in
       which the debt securities of a particular series are payable, for the
       payment of which its full faith and credit is pledged; or

                                       30
<PAGE>   34

     - obligations of a person or entity controlled or supervised by and acting
       as an agency or instrumentality of the United States or the government or
       governments which issued the foreign currency in which the debt
       securities of a particular series are payable, the timely payment of
       which is unconditionally guaranteed as a full faith and credit obligation
       by the United States or that other government or governments.

Government obligations also include a depositary receipt issued by a bank or
trust company as custodian with respect to any government obligation described
above or a specific payment of interest on or principal of or any other amount
with respect to any government obligation held by that custodian for the account
of the holder of such depositary receipt, as long as, except as required by law,
that custodian is not authorized to make any deduction from the amount payable
to the holder of the depositary receipt from any amount received by the
custodian with respect to the government obligation or the specific payment of
interest on or principal of or any other amount with respect to the government
obligation evidenced by the depositary receipt.

     Unless otherwise specified in the applicable prospectus supplement, if
after we have deposited funds and/or government obligations to effect legal
defeasance or covenant defeasance with respect to debt securities of any series,
either:

     - the holder of a debt security of that series is entitled to, and does,
       elect to receive payment in a currency other than that in which such
       deposit has been made in respect of that debt security; or

     - a conversion event, as defined below, occurs in respect of the foreign
       currency in which the deposit has been made,

the indebtedness represented by that debt security shall be deemed to have been,
and will be, fully discharged and satisfied through the payment of the principal
of, and any premium and interest on, that debt security as that debt security
becomes due out of the proceeds yielded by converting the amount or other
properties so deposited in respect of that debt security into the currency in
which that debt security becomes payable as a result of the election or
conversion event based on:

     - in the case of payments made pursuant to the first of the two items in
       the list above, the applicable market exchange rate for the currency in
       effect on the second business day prior to the date of the payment; or

     - with respect to a conversion event, the applicable market exchange rate
       for such foreign currency in effect, as nearly as feasible, at the time
       of the conversion event.

     Each indenture defines a "conversion event" as the cessation of use of:

     - a foreign currency other than the ECU and euro both by the government of
       the country or the confederation which issued such foreign currency and
       for the settlement of transactions by a central bank or other public
       institutions of or within the international banking community;

     - the ECU and euro both within the European Monetary System and for the
       settlement of transactions by public institutions of or within the
       European Community; or

     - any currency unit or composite currency other than the ECU and euro for
       the purposes for which it was established.

Unless otherwise provided in the applicable prospectus supplement, all payments
of principal of, and any premium and interest on, any debt security that are
payable in a foreign currency that ceases to be used by the government or
confederation of issuance shall be made in U.S. dollars.

                                       31
<PAGE>   35

     If we effect a covenant defeasance with respect to any debt securities and
the debt securities are declared due and payable because of the occurrence of
any event of default other than an event of default with respect to which there
has been covenant defeasance, the amount in the foreign currency in which the
debt securities are payable, and government obligations on deposit with the
trustee, will be sufficient to pay amounts due on the debt securities at the
time of the stated maturity but may not be sufficient to pay amounts due on the
debt securities at the time of the acceleration resulting from the event of
default. However, we would remain liable for payment of the amounts due at the
time of acceleration.

     The applicable prospectus supplement may further describe the provisions,
if any, permitting defeasance or covenant defeasance, including any
modifications to the provisions described above, with respect to the debt
securities of or within a particular series.

     Under each indenture, we are required to furnish to the trustee annually a
statement as to our performance of certain of our obligations under the
indenture and as to any default in such performance. We are also required to
deliver to the trustee, within five days after occurrence thereof, written
notice of any event which after notice or lapse of time or both would constitute
an event of default.

MODIFICATION AND WAIVER

     We and the trustee may, without the consent of holders, modify or waive
provisions of each indenture for certain purposes, including, among other
things, curing ambiguities and maintaining the qualification of the applicable
indenture under the Trust Indenture Act. We and the trustee may modify or waive
certain provisions of each indenture with the consent of the holders of not less
than a majority in aggregate principal amount of the debt securities of each
series issued under that indenture affected by the modification or waiver.
However, the provisions of either indenture may not be waived or modified
without the consent of the holder of each debt security affected thereby if the
modification or waiver would:

     - change the stated maturity of the principal of, or premium, if any, on,
       or any installment of principal, if any, of or interest on, or any
       additional amounts with respect to, any debt security issued under that
       indenture;

     - reduce the principal amount of, or premium or interest on, or any
       additional amounts with respect to, any debt security issued under that
       indenture;

     - change the coin or currency in which any debt security issued under that
       indenture or any premium or any interest on that debt security or any
       additional amounts with respect to that debt security is payable;

     - if the debt securities are convertible or exchangeable, modify the
       conversion or exchange provision in a manner adverse to holders of that
       debt security;

     - in the case of a subordinated debt security, modify any of the
       subordination provisions in a manner adverse to holders of that debt
       security; or

     - impair the right to institute suit for the enforcement of any payment on
       or after the stated maturity of any debt securities issued under that
       indenture or, in the case of redemption, exchange or conversion, if
       applicable, on or after the redemption, exchange or conversion date or,
       in the case of repayment at the option of any holder, if applicable, on
       or after the date for repayment or in the case of a change in control,
       after the change in control purchase date;

     - reduce the percentage and principal amount of the outstanding debt
       securities, the consent of whose holders is required under that indenture
       in order to take certain actions;

                                       32
<PAGE>   36

     - change any of our obligations to maintain an office or agency in the
       places and for the purposes required by that indenture; or

     - modify any of the above provisions.

     The holders of at least a majority in aggregate principal amount of debt
securities of any series issued under one of the indentures may, on behalf of
the holders of all debt securities of that series, waive our compliance with
certain restrictive provisions of that indenture. The holders of not less than a
majority in aggregate principal amount of debt securities of any series issued
under one of the indentures may, on behalf of all holders of debt securities of
that series, waive any past default and its consequences under that indenture
with respect to the debt securities of that series, except:

     - a payment default with respect to debt securities of that series; or

     - a default of a covenant or provision of that indenture that cannot be
       modified or amended without the consent of the holder of the debt
       securities of that series.

CONSOLIDATION, MERGER AND SALE OF ASSETS

     We may, without the consent of the holders of the debt securities,
consolidate or merge with or into, or convey, transfer or lease our properties
and assets substantially as an entirety to, any person that is a corporation,
limited liability company, partnership or trust organized and validly existing
under the laws of any domestic jurisdiction. We may also permit any of those
persons to consolidate with or merge into us or convey, transfer or lease its
properties and assets substantially as an entirety to us, as long as:

     - any successor person assumes our obligations on the debt securities;

     - no event of default under the applicable indenture will have occurred and
       be continuing after giving effect to the transaction;

     - no event which, after notice or lapse of time or both, would become an
       event of default under the applicable indenture will have occurred and be
       continuing after giving effect to the transaction; and

     - certain other conditions are met.

ENFORCEMENT OF CERTAIN RIGHTS BY HOLDERS OF TRUST PREFERRED SECURITIES

     The following applies only in the event that debt securities are held by an
Apache Trust.

     To the extent that any action under any debt securities held by an Apache
Trust is entitled to be taken by the holders of at least a specified percentage
of those debt securities, and unless otherwise specified in the applicable
prospectus supplement, holders of the trust preferred securities issued by that
Apache Trust may take action if the action is not taken by the property trustee
of that Apache Trust. Notwithstanding the foregoing, if an event of default
under those debt securities has occurred and is continuing and is attributable
either to:

     - the failure of Apache to pay the principal of, or any premium or interest
       on, those debt securities on the due date; or

     - the failure by Apache to deliver the required securities or other rights
       upon an appropriate conversion or exchange right election, if any,

and an event of default has occurred and is continuing under the applicable
trust agreement, a holder of the related trust preferred securities may
institute a direct action.

     A "direct action" is a legal proceeding directly against Apache for
enforcement of payment to the holder of trust preferred securities issued by an
Apache Trust of the principal of or any premium or interest on the debt
securities held by that trust having a principal amount equal to

                                       33
<PAGE>   37

the liquidation amount of those trust preferred securities held by that holder
or for enforcement of any conversion or exchange rights, as the case may be.
Apache may not amend an indenture to remove the foregoing right to bring a
direct action without the prior written consent of the holders of all of the
trust preferred securities outstanding that have an interest in the related debt
securities. If the right to bring a direct action is removed, the Apache Trusts
may become subject to the reporting obligations under the Securities Exchange
Act. Notwithstanding any payments made to a holder of trust preferred securities
by Apache in connection with a direct action, Apache will remain obligated to
pay the principal of, and any premium and interest on, the related debt
securities, and Apache will be subrogated to the rights of the holders of those
trust preferred securities with respect to payments on the trust preferred
securities to the extent of any payments made by Apache to the holder in any
direct action.

     The holders of the trust preferred securities will not be able to exercise
directly any remedies, other than those set forth in the preceding paragraph,
available to the holders of the related debt securities unless an event of
default has occurred and is continuing under the applicable trust agreement. See
"Description of Trust Preferred Securities -- Events of Default; Notice" below.

                   DESCRIPTION OF TRUST PREFERRED SECURITIES

     Each Apache Trust will issue under its trust agreement only one series of
trust preferred securities, which will represent beneficial interests in that
Apache Trust. Each Apache Trust will qualify its trust agreement under the Trust
Indenture Act. Each trust agreement is subject to, and governed by, the Trust
Indenture Act. This summary of certain terms and provisions of the trust
preferred securities and the trust agreement does not purport to be complete and
is subject to, and is qualified in its entirety by reference to, all of the
provisions of the trust preferred securities and the trust agreement, including
the definitions of certain terms, and those made a part of the trust agreement
by the Trust Indenture Act.

     Each Apache Trust will describe the specific terms of the trust preferred
securities it is offering in the applicable prospectus supplement, including:

     - the specific designation, number and purchase price of the trust
       preferred securities;

     - the annual distribution rate, or method of calculation of the
       distribution rate, for the trust preferred securities and, if applicable,
       any interest deferral provisions;

     - whether the distributions on the trust preferred securities will be
       cumulative and, if so, the dates from which and upon which distributions
       will accumulate and be payable and the record dates;

     - the liquidation amount per trust preferred security which will be paid
       out of the assets of that Apache Trust to the holders upon voluntary or
       involuntary dissolution, winding-up and liquidation;

     - the obligation or right, if any, of that Apache Trust to purchase or
       redeem its trust preferred securities and the price or prices at which,
       the date or dates on which or period or periods within which and the
       terms and conditions upon which, it will or may purchase or redeem, in
       whole or in part, the trust preferred securities pursuant to its
       obligation or right to purchase or redeem;

     - the terms and conditions, if any, upon which the trust preferred
       securities may be converted or exchanged, in addition to the
       circumstances described herein, into other securities or rights, or a
       combination of the foregoing, including the name of the issuer of the
       securities or rights, the initial conversion or exchange price or rate
       per trust preferred security and the date or dates on which or period or
       periods within which the conversion or exchange may be effected;
                                       34
<PAGE>   38

     - the obligation or right, if any, of Apache, that Apache Trust or any
       other party to liquidate that Apache Trust and any terms and conditions
       of such liquidation;

     - the voting rights, if any, of the holders;

     - if applicable, any securities exchange upon which the trust preferred
       securities will be listed;

     - if applicable, a description of any remarketing, auction or other similar
       arrangements;

     - whether the trust preferred securities are issuable in book-entry only
       form and, if so, the identity of the depositary and disclosure relating
       to the depositary arrangements; and

     - any other rights, preferences, privileges, limitations or restrictions of
       the trust preferred securities consistent with the trust agreement or
       with applicable law, which may differ from those described herein.

     Each Apache Trust will also describe certain material United States federal
income tax considerations applicable to any offering of trust preferred
securities in the applicable prospectus supplement.

     If indicated in the applicable prospectus supplement, the terms of an
Apache Trust may differ from the terms summarized below.

GENERAL

     The trust preferred securities of each Apache Trust will rank equally, and
payments will be made on the trust preferred securities proportionately, with
the trust common securities of each Apache Trust except as described under
"-- Subordination of Trust Common Securities." Apache Trust will use the
proceeds from the sale of trust preferred securities and trust common securities
to purchase an aggregate principal amount of debt securities of Apache equal to
the aggregate liquidation amount of such trust preferred securities and trust
common securities. The property trustee of each Apache Trust will hold legal
title to the debt securities for the benefit of the holders of the related trust
securities. In addition, Apache will execute a guarantee for the benefit of the
holders of the related trust preferred securities. The guarantees will not
guarantee payment of distributions or amounts payable on redemption of the trust
preferred securities or liquidation of an Apache Trust when the trust does not
have funds legally available for payment. See "Description of Trust Preferred
Securities Guarantees."

     The revenue of an Apache Trust available for distribution to holders of its
trust preferred securities will be limited to payments under the related debt
securities which the Apache Trust purchased with the proceeds from the sale of
its trust securities. If Apache fails to make a required payment in respect of
those debt securities, that Apache Trust will not have sufficient funds to make
the related payments, including distributions, in respect of its trust preferred
securities.

SUBORDINATION OF TRUST COMMON SECURITIES

     Each Apache Trust will pay distributions on, and the applicable redemption
price of, the trust securities it issues equally among its trust preferred
securities and its trust common securities based on their respective liquidation
amounts; provided, however, that if on any distribution date or redemption date
an event of default under the debt securities held by that Apache Trust has
occurred and is continuing, that Apache Trust will not pay any distribution on,
or applicable redemption price of, any of its trust common securities, and will
not make any other payment on account of the redemption, liquidation or other
acquisition of the trust common securities, unless payment in full in cash of
all accumulated distributions on all of the outstanding trust preferred
securities of that Apache Trust for all distribution periods terminating on or
before the redemption, liquidation or other acquisition, or in the case of
payment of the applicable
                                       35
<PAGE>   39

redemption price, the full amount of the redemption price, will have been made
or provided for. The property trustee will apply all available funds first to
the payment in full in cash of all distributions on, or the applicable
redemption price of, the trust preferred securities issued by that Apache Trust
then due and payable.

     Until any event of default under the trust agreement for an Apache Trust
has been cured, waived or otherwise eliminated, the property trustee will act
solely on behalf of the holders of the trust preferred securities of that Apache
Trust and not on behalf of Apache as the direct or indirect trust common
securities owner, and only the holders of the trust preferred securities issued
by that Apache Trust will have the right to direct the property trustee to act
on their behalf.

EVENTS OF DEFAULT; NOTICE

     The occurrence of an event of default under the debt securities held by an
Apache Trust will constitute an event of default under the trust agreement for
that Apache Trust. Within 90 business days after the occurrence of an event of
default actually known to the property trustee, the property trustee will
transmit notice of that event of default to the holders of the trust preferred
securities of that Apache Trust, the administrative trustees and Apache, as
sponsor, unless the event of default shall have been cured or waived.

     For a discussion of the limited circumstances in which holders of trust
preferred securities may bring a direct action against Apache, see "Description
Of Debt Securities -- Enforcement of Certain Rights by Holders of Trust
Preferred Securities."

REMOVAL OF TRUSTEES

     Unless an event of default under the debt securities held by an Apache
Trust has occurred and is continuing, Apache, as the direct or indirect owner of
trust common securities of that Apache Trust, may remove the property trustee,
the Delaware trustee and the administrative trustees at any time. If an event of
default under the debt securities held by an Apache Trust has occurred and is
continuing, only the holders of a majority in liquidation amount of the
outstanding trust preferred securities of that Apache Trust may remove and
replace the property trustee and the Delaware trustee for that Apache Trust at
such time. In no event will the holders of the trust preferred securities have
the right to vote to appoint, remove or replace the administrative trustees,
which voting rights are vested exclusively in Apache as the direct or indirect
trust common securities owner. No resignation or removal of a trustee, and no
appointment of a successor trustee, will be effective until the acceptance of
appointment by the successor trustee in accordance with the provisions of the
applicable trust agreement.

MERGER OR CONSOLIDATION OF PROPERTY OR DELAWARE TRUSTEES

     Any corporation or other person into which the property trustee or the
Delaware trustee may be merged or converted or with which it may be
consolidated, or any corporation or other person resulting from any merger,
conversion or consolidation to which the property trustee or the Delaware
trustee will be a party, or any corporation succeeding to all or substantially
all the corporate trust business of the property trustee or the Delaware
trustee, will be the successor of the property trustee or the Delaware trustee
under the trust agreement, provided that the corporation or other person will be
otherwise qualified and eligible.

MERGERS, CONVERSIONS, CONSOLIDATIONS, AMALGAMATIONS OR REPLACEMENTS OF AN APACHE
TRUST

     An Apache Trust may not merge with or into, convert into, consolidate,
amalgamate, or be replaced by, or convey, transfer or lease its properties and
assets as an entirety or substantially as an entirety to any corporation or
other person, except as described below or as otherwise described in the
applicable prospectus supplement. An Apache Trust may, at the request of
                                       36
<PAGE>   40

Apache, as sponsor, with the consent of the administrative trustees but without
the consent of the holders of its trust preferred securities, merge with or
into, convert into, consolidate, amalgamate, or be replaced by or convey,
transfer or lease its properties and assets as an entirety or substantially as
an entirety to a trust organized as such under the laws of any state of the
United States; provided, that:

     - the successor entity either:

        - expressly assumes all of the obligations of that Apache Trust with
          respect to the trust securities of that Apache Trust, or

        - substitutes for the trust securities of that Apache Trust other
          securities having substantially the same terms as those trust
          securities, so long as the successor securities rank the same as the
          trust securities rank with respect to distributions and payments upon
          liquidation, redemption and otherwise;

     - Apache expressly appoints a trustee of the successor entity possessing
       substantially the same powers and duties as the property trustee with
       respect to the debt securities held by that Apache Trust;

     - the successor securities are listed, or any successor securities will be
       listed upon notification of issuance, on each national securities
       exchange or other organization on which the trust securities of that
       Apache Trust are then listed, if any;

     - the merger, conversion, consolidation, amalgamation, replacement,
       conveyance, transfer or lease does not cause the trust securities,
       including any successor securities, of that Apache Trust or the debt
       securities held by that Apache Trust to be downgraded or placed under
       surveillance or review by any nationally recognized statistical rating
       organization;

     - the merger, conversion, consolidation, amalgamation, replacement,
       conveyance, transfer or lease does not adversely affect the rights,
       preferences and privileges of the holders of the trust securities,
       including any successor securities, of that Apache Trust in any material
       respect, other than any dilution of the holders' interests in the new
       entity;

     - the successor entity has a purpose substantially identical to that of
       that Apache Trust;

     - prior to the merger, conversion, consolidation, amalgamation,
       replacement, conveyance, transfer or lease, Apache has received an
       opinion from nationally recognized independent counsel to that Apache
       Trust experienced in these matters to the effect that

        - the merger, conversion, consolidation, amalgamation, replacement,
          conveyance, transfer or lease does not adversely affect the rights,
          preferences and privileges of the holders of the trust securities,
          including any successor securities, of that Apache Trust in any
          material respect, other than any dilution of the holders' interests in
          the new entity,

        - following the merger, conversion, consolidation, amalgamation,
          replacement, conveyance, transfer or lease, neither that Apache Trust
          nor the successor entity, if any, will be required to register as an
          investment company under the Investment Company Act of 1940, as
          amended, and

        - following the merger, conversion, consolidation, amalgamation,
          replacement, conveyance, transfer or lease, that Apache Trust or the
          successor entity, as the case may be, will continue to be classified a
          grantor trust for United States federal income tax purposes;

     - Apache or any permitted successor or assignee directly or indirectly owns
       all of the common securities of the successor entity and guarantees the
       obligations of the successor

                                       37
<PAGE>   41

       entity under the successor securities at least to the extent provided by
       the applicable guarantee; and

     - the property trustee has received our officer's certificate and an
       opinion of counsel, each to the effect that all conditions precedent to
       the transaction as set forth in the trust agreement have been satisfied.

VOTING RIGHTS; AMENDMENT OF TRUST AGREEMENT

     Except as provided below and under "-- Mergers, Conversions,
Consolidations, Amalgamations or Replacements of an Apache Trust" and
"Description of Trust Preferred Securities Guarantees -- Amendments and
Assignment" and as otherwise required by law and the trust agreement or
specified in the applicable prospectus supplement, the holders of trust
preferred securities will have no voting rights.

     Apache, the property trustee, the Delaware trustee and the administrative
trustees may amend from time to time the trust agreement for an Apache Trust,
without the consent of the holders of the trust securities of that Apache Trust,

     - to cure any ambiguity, correct or supplement any provisions in the trust
       agreement that may be inconsistent with any other provision,

     - to add to the covenants, restrictions or obligations of the sponsor, or

     - to modify, eliminate or add to any provisions of the trust agreement if
       necessary to ensure that Apache Trust will be classified for United
       States federal income tax purposes as a grantor trust at all times that
       any of its trust securities are outstanding or to ensure that Apache
       Trust will not be required to register as an investment company under the
       Investment Company Act;

provided, however, that in each case above, the modification will not adversely
affect in any material respect the interests of the holders of the trust
securities issued by that Apache Trust.

Without the consent of each holder of trust securities issued by an Apache
Trust, the trust agreement for that Apache Trust may not be amended to:

     - change the distribution rate, or manner of calculation of the
       distribution rate, amount, timing or currency or otherwise adversely
       affect the method of any required payment;

     - change its purpose;

     - authorize the issuance of any additional beneficial interests;

     - change the conversion, exchange or redemption provisions, if any;

     - change the conditions precedent for Apache to elect to dissolve that
       Apache Trust and distribute the debt securities held by that Apache Trust
       to the holders of the trust securities, if applicable;

     - change the liquidation, distribution or other provisions relating to the
       distribution of amounts payable upon the dissolution and liquidation of
       that Apache Trust;

     - affect the limited liability of any holder of its trust securities; or

     - restrict the right of a holder of its trust securities to institute suit
       for the enforcement of any required payment on or, if applicable, after
       the due date therefor or for the conversion or exchange of the trust
       securities in accordance with their terms.

     So long as the property trustee holds any debt securities for an Apache
Trust, the property trustee, the Delaware trustee and the administrative
trustees for that Apache Trust will not:

     - direct the time, method and place of conducting any proceeding for any
       remedy available to the debenture trustee, or execute any trust or power
       conferred on the property trustee, with respect to those debt securities;

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<PAGE>   42

     - waive certain past defaults under the applicable indenture;

     - exercise any right to rescind or annul a declaration of acceleration of
       the maturity of the principal of those debt securities; or

     - consent to any amendment, modification or termination of the applicable
       indenture or those debt securities, where consent is required.

without, in each case, obtaining the prior approval of the holders of a majority
in liquidation amount of all outstanding trust preferred securities of that
Apache Trust; provided, however, that where a consent under the applicable
indenture would require the consent of each holder of those debt securities
affected thereby, the property trustee will not consent without the prior
approval of each holder of the trust preferred securities issued by that Apache
Trust. The property trustee, the Delaware trustee and the administrative
trustees may not revoke any action previously authorized or approved by a vote
of the holders of trust preferred securities except by subsequent vote of the
holders. The property trustee will notify each holder of trust preferred
securities of any notice of default with respect to the applicable debt
securities. In addition to obtaining approvals of holders of trust preferred
securities referred to above, prior to taking any of the foregoing actions, the
property trustee, the Delaware trustee and the administrative trustees will
obtain an opinion of counsel experienced in these matters to the effect that the
applicable Apache Trust will not be classified as other than a grantor trust for
United States federal income tax purposes on account of such action.

     Any required approval of holders of trust preferred securities may be given
at a meeting of the holders convened for this purpose or by written consent
without prior notice. The property trustee will cause a notice of any meeting at
which holders of trust preferred securities are entitled to vote to be given to
each holder of record of trust preferred securities in the manner set forth in
the trust agreement.

     Notwithstanding that holders of trust preferred securities are entitled to
vote or consent under any of the circumstances referred to above, any trust
preferred securities that are owned by Apache or any affiliate of Apache will,
for purposes of this vote or consent, be treated as if they were not
outstanding.

GLOBAL TRUST PREFERRED SECURITIES

     If specified in the applicable prospectus supplement, trust preferred
securities may be represented by one or more global certificates deposited with,
or on behalf of, DTC, or other depositary identified in the prospectus
supplement, or a nominee of DTC or other depositary, in each case for credit to
an account of a participant in DTC or other depositary. The identity of the
depositary and the specific terms of the depositary arrangements with respect to
the trust preferred securities to be represented by one or more global
certificates will be described in the applicable prospectus supplement. However,
unless otherwise specified in the applicable prospectus supplement, DTC will be
the depositary and the depositary arrangements described with respect to the
debt securities will apply to such trust preferred securities as well, except
all references to Apache shall include Apache Trust I and Apache Trust II and
all references to the indentures will refer to the applicable trust agreement.
See "Description of Debt Securities -- Global Securities" above.

PAYMENT AND PAYING AGENT

     Payments in respect of any global certificate representing trust preferred
securities will be made to Cede & Co. as nominee of DTC or other applicable
depositary or its nominee, which will credit the relevant accounts at DTC or
other depositary on the applicable payment dates, while payments in respect of
trust preferred securities in certificated form will be made by check mailed to
the address of the holder entitled thereto as the address will appear on the
register.

                                       39
<PAGE>   43

The paying agent will initially be the property trustee and any co-paying agent
chosen by the property trustee and acceptable to the administrative trustees and
Apache. The paying agent will be permitted to resign as paying agent upon 30
days prior written notice to the property trustee, the administrative trustees
and Apache. In the event that the property trustee will no longer be the paying
agent, the administrative trustees will appoint a successor, which will be a
bank or trust company acceptable to the administrative trustees and Apache, to
act as paying agent.

REGISTRAR AND TRANSFER AGENT

     The property trustee will act as registrar and transfer agent for the trust
preferred securities.

     Registration of transfers of trust preferred securities will be effected
without charge by or on behalf of an Apache Trust, but upon payment of any tax
or other governmental charges that may be imposed in connection with any
transfer or exchange. An Apache Trust will not be required to register or cause
to be registered the transfer of its trust preferred securities after they have
been converted, exchanged, redeemed or called for redemption.

INFORMATION CONCERNING THE PROPERTY TRUSTEE

     The property trustee, other than during the occurrence and continuance of
an event of default under the trust agreement, will undertake to perform only
the duties that are specifically set forth in the trust agreement and, during
the continuance of that event of default, must exercise the same degree of care
and skill as a prudent person would exercise or use in the conduct of his or her
own affairs. Subject to the foregoing, the property trustee will not be under
any obligation to exercise any of the powers vested in it by the trust agreement
at the request of any holder of the related trust securities unless it is
offered reasonable indemnity against the costs, expenses and liabilities that
might be incurred thereby. If no event of default has occurred and is continuing
and the property trustee is required to decide between alternative causes of
action, construe ambiguous provisions in the trust agreement or is unsure of the
application of any provision of the trust agreement, and the matter is not one
on which holders of trust preferred securities or trust common securities are
entitled under the trust agreement to vote, then the property trustee will take
the action as is directed by Apache and if not so directed, will take the action
as it deems advisable and in the best interests of the holders of the related
trust securities and will have no liability except for its own bad faith,
negligence or willful misconduct.

MISCELLANEOUS

     The administrative trustees are authorized and directed to conduct the
affairs of and to operate each Apache Trust in such a way that

     - that Apache Trust will not be deemed to be an investment company required
       to be registered under the Investment Company Act,

     - that Apache Trust will be classified as a grantor trust for United States
       federal income tax purposes, and

     - the debt securities held by that Apache Trust will be treated as
       indebtedness of Apache for United States federal income tax purposes.

Apache and the administrative trustees are authorized to take any action, not
inconsistent with applicable law, the certificate of trust of each Apache Trust
or each trust agreement, that the administrative trustees determine in their
discretion to be necessary or desirable for those purposes, as long as that
action does not materially adversely affect the interests of the holders of the
related trust securities.

     Holders of trust preferred securities will not have any preemptive or
similar rights.

                                       40
<PAGE>   44

     The Apache Trusts may not borrow money, issue debt, execute mortgages or
pledge any of their assets.

              DESCRIPTION OF TRUST PREFERRED SECURITIES GUARANTEES

     Apache will execute and deliver a guarantee concurrently with the issuance
by an Apache Trust of its trust preferred securities for the benefit of the
holders from time to time of those trust preferred securities. That guarantee
will be held for those holders by a guarantee trustee. Apache will qualify each
of the guarantees as an indenture under the Trust Indenture Act. The guarantees
will be subject to, and governed by, the Trust Indenture Act. This summary of
certain terms and provisions of a guarantee does not purport to be complete and
is subject to, and qualified in its entirety by reference to, all of the
provisions of each guarantee, including the definitions of terms, and those made
a part of each guarantee by the Trust Indenture Act. If indicated in the
applicable prospectus supplement, the terms of a particular guarantee may differ
from the terms discussed below.

GENERAL

     Apache will irrevocably agree to pay in full, to the extent set forth
herein, the guarantee payments to the holders of the related trust preferred
securities, as and when due, regardless of any defense, right of set-off or
counterclaim that an Apache Trust may have or assert. The following payments
constitute guarantee payments with respect to trust preferred securities and, to
the extent not paid by or on behalf of an Apache Trust, will be subject to the
applicable guarantee:

     - any accrued and unpaid distributions required to be paid on the
       applicable trust preferred securities, to the extent that an Apache Trust
       has funds legally available therefor at such time;

     - the applicable redemption price and all accrued and unpaid distributions
       to the date of redemption with respect to the applicable trust preferred
       securities called for redemption, to the extent that an Apache Trust has
       funds legally available therefor at such time; or

     - upon a voluntary or involuntary dissolution and liquidation of the
       applicable Apache Trust, other than in connection with the distribution
       of the debt securities to holders of its trust preferred securities or
       the redemption, conversion or exchange of its trust preferred securities,
       if applicable, the lesser of

          - the amounts due upon the dissolution and liquidation of that Apache
            Trust, to the extent that it has funds legally available therefor at
            the time, and

          - the amount of assets of that Apache Trust remaining available for
            distribution to holders of its trust preferred securities after
            satisfaction of liabilities to its creditors as required by
            applicable law.

     Apache's obligation to make a guarantee payment may be satisfied by direct
payment of the required amounts by Apache to the holders of the applicable trust
preferred securities entitled to those payments or by causing the applicable
Apache Trust to pay those amounts to the holders.

     If the trust preferred securities are exchangeable or convertible into
other securities, Apache will also irrevocably agree to cause the applicable
Apache Trust to deliver to holders of those trust preferred securities those
other securities in accordance with the applicable exchange or conversion
provisions.

     Apache will, through the guarantee, the applicable trust agreement, the
related debt securities and the applicable indenture, taken together, fully,
irrevocably and unconditionally guarantee all of each Apache Trust's obligations
under its trust preferred securities. No single

                                       41
<PAGE>   45

document standing alone or operating in conjunction with fewer than all of the
other documents constitutes a guarantee. It is only the combined operation of
these documents that has the effect of providing a full, irrevocable and
unconditional guarantee of each Apache Trust's obligations under its trust
preferred securities.

RANKING

     Unless otherwise specified in the applicable prospectus supplement, each
guarantee will constitute an unsecured obligation of Apache and will rank equal
to the debt securities held by the Apache Trust that issued the preferred trust
securities covered by the guarantee. Each trust agreement provides that each
holder of trust preferred securities by acceptance of the applicable trust
preferred securities agrees to the terms of the related guarantee, including any
subordination provisions.

     The guarantees will not limit the amount of secured or unsecured debt,
including indebtedness under the indentures, that may be incurred by Apache or
any of its subsidiaries.

GUARANTEE OF PAYMENT

     Each guarantee will constitute a guarantee of payment and not of
collection. This means that the guaranteed party may institute a legal
proceeding directly against Apache to enforce its rights under a guarantee
without first instituting a legal proceeding against any other person or entity.
A guarantee will not be discharged except by payment of the related guarantee
payments in full to the extent not paid by the applicable Apache Trust or upon
distribution of the debt securities held by the Apache Trust to the holders of
the its trust preferred securities.

AMENDMENTS AND ASSIGNMENT

     Except with respect to any changes that do not materially adversely affect
the rights of holders of the related trust preferred securities, in which case
no approval will be required, a guarantee may not be amended without the prior
approval of the holders of a majority of the liquidation amount of the
outstanding trust preferred securities covered by that guarantee. The manner of
obtaining any approval will be as set forth under "Description Of Trust
Preferred Securities -- Voting Rights; Amendment of a Trust Agreement." All
guarantees and agreements contained in a guarantee will bind the successors,
assigns, receivers, trustees and representatives of Apache and will inure to the
benefit of the holders of the related trust preferred securities then
outstanding.

EVENTS OF DEFAULT

     An event of default under a guarantee will occur upon the failure of Apache
to perform any of its payment or other obligations under that guarantee,
provided that, except with respect to a default in respect of any guarantee
payment, Apache has received notice of the default and has not cured the default
within 90 days of receipt of a notice of default. The holders of a majority in
liquidation amount of the trust preferred securities covered by a guarantee will
have the right to direct the time, method and place of conducting any proceeding
for any remedy available to the guarantee trustee in respect of that guarantee
or to direct the exercise of any trust or power conferred upon the guarantee
trustee under that guarantee.

     If the guarantee trustee fails to enforce a guarantee, any holder of the
related trust preferred securities may institute a legal proceeding directly
against Apache to enforce its rights under that guarantee without first
instituting a legal proceeding against the applicable Apache Trust, the
guarantee trustee or any other person or entity.

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<PAGE>   46

TERMINATION

     A guarantee will terminate and be of no further force and effect upon full
payment of the applicable redemption price of the related trust preferred
securities, upon full payment of all amounts due upon the dissolution and
liquidation of the applicable Apache Trust or upon the conversion or exchange of
all of the related trust preferred securities, in each case, if applicable,
whether upon distribution of the applicable debt securities to the holders of
the trust preferred securities or otherwise. A guarantee will continue to be
effective or will be reinstated, as the case may be, if at any time any holder
of the related trust preferred securities must restore payment of any sums paid
under those trust preferred securities or the related guarantee.

GOVERNING LAW

     The guarantees will be governed by and construed in accordance with the
laws of the State of New York.

INFORMATION CONCERNING THE GUARANTEE TRUSTEE

     The guarantee trustee, other than during the occurrence and continuance of
a default by Apache in performance of a guarantee, will undertake to perform
only the duties that are specifically set forth in that guarantee and, during
the continuance of that default, must exercise the same degree of care and skill
as a prudent person would exercise or use in the conduct of his or her own
affairs. Subject to the foregoing, the guarantee trustee will not be under any
obligation to exercise any of the powers vested in it by a guarantee at the
request of any holder of the related trust preferred securities unless it is
offered reasonable indemnity against the costs, expenses and liabilities that it
might incur.

RIGHTS UPON DISSOLUTION

     Unless the debt securities held by an Apache Trust are distributed to
holders of the related trust preferred securities, upon any voluntary or
involuntary dissolution and liquidation of that Apache Trust, after satisfaction
of the liabilities of its creditors as required by applicable law, the holders
of those trust securities will be entitled to receive, out of assets held by
that Apache Trust, the liquidation distribution in cash. Upon any voluntary or
involuntary liquidation or bankruptcy of Apache, the property trustee, as holder
of the debt securities, would be a creditor of Apache.

            DESCRIPTION OF COMMON STOCK PURCHASE CONTRACTS AND UNITS

     We may issue stock purchase contracts, representing contracts entitling or
obligating holders to purchase from Apache, and Apache to sell to the holders, a
specified number of shares of common stock at a future date or dates. The price
per share of common stock may be fixed at the time the contracts are issued or
may be determined by reference to a specific formula set forth in the contracts.
The common stock purchase contracts may be issued separately or as a part of
units, which are referred to in this prospectus as "common stock purchase
units," consisting of a common stock purchase contract and, as security for the
holder's obligations to purchase the common stock under the contracts, the
following:

     - senior debt securities or subordinated debt securities of Apache;

     - debt obligations of third parties, including U.S. Treasury securities;

     - trust preferred securities of an Apache Trust; or

     - any combination of the foregoing.

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<PAGE>   47

     The common stock purchase contracts may require Apache to make periodic
payments to the holders of the common stock purchase units or vice versa, and
such payments may be unsecured or prefunded on some basis. The common stock
purchase contracts may require holders to secure their obligations thereunder in
a specified manner, and in certain circumstances Apache may deliver newly issued
prepaid common stock purchase contracts, which are referred to as "prepaid
securities," upon release to a holder of any collateral securing such holder's
obligations under the original contract.

     The applicable prospectus supplement will describe the terms of any common
stock purchase contracts or units and, if applicable, prepaid securities. The
description in the prospectus supplement will not purport to be complete and
will be qualified in its entirety by reference to the contracts, the collateral
arrangements and depositary arrangements, if applicable, relating to such
contracts or units and, if applicable, the prepaid securities and the document
pursuant to which such prepaid securities will be issued.

                             BOOK-ENTRY SECURITIES

     Unless otherwise specified in the applicable prospectus supplement, we will
issue to investors securities, other than our common stock, in the form of one
or more book-entry certificates registered in the name of a depository or a
nominee of a depository. Unless otherwise specified in the applicable prospectus
supplement, the depository will be The Depository Trust Company, also referred
to as DTC. We have been informed by DTC that its nominee will be Cede & Co.
Accordingly, Cede is expected to be the initial registered holder of all
securities that are issued in book-entry form.

     No person that acquires a beneficial interest in securities issued in
book-entry form will be entitled to receive a certificate representing those
securities, except as set forth in this prospectus or in the applicable
prospectus supplement. Unless and until definitive securities are issued under
the limited circumstances described below, all references to actions by holders
or beneficial owners of securities issued in book-entry form will refer to
actions taken by DTC upon instructions from its participants, and all references
to payments and notices to holders or beneficial owners will refer to payments
and notices to DTC or Cede, as the registered holder of such securities.

     DTC has informed us that it is:

     - a limited-purpose trust company organized under New York banking laws;

     - a "banking organization" within the meaning of the New York banking laws;

     - a member of the Federal Reserve System;

     - a "clearing corporation" within the meaning of the New York Uniform
       Commercial Code; and

     - a "clearing agency" registered under the Securities Exchange Act.

     DTC has also informed us that it was created to:

     - hold securities for "participants"; and

     - facilitate the computerized settlement of securities transactions among
       participants through computerized electronic book-entry changes in
       participants' accounts, thereby eliminating the need for the physical
       movement of securities certificates.

     Participants have accounts with DTC and include securities brokers and
dealers, banks, trust companies and clearing corporations. Indirect access to
the DTC system also is available to

                                       44
<PAGE>   48

indirect participants such as banks, brokers, dealers and trust companies that
clear through or maintain a custodial relationship with a participant, either
directly or indirectly.

     Persons that are not participants or indirect participants but desire to
buy, sell or otherwise transfer ownership of or interests in securities may do
so only through participants and indirect participants. Under the book-entry
system, beneficial owners may experience some delay in receiving payments, as
payments will be forwarded by our agent to Cede, as nominee for DTC. DTC will
forward these payments to its participants, which thereafter will forward them
to indirect participants or beneficial owners. Beneficial owners will not be
recognized by the applicable registrar, transfer agent, trustee or depositary as
registered holders of the securities entitled to the benefits of the
certificate, the indenture or any deposit agreement. Beneficial owners that are
not participants will be permitted to exercise their rights as an owner only
indirectly through participants and, if applicable, indirect participants.

     Under the current rules and regulations affecting DTC, DTC will be required
to make book-entry transfers of securities among participants and to receive and
transmit payments to participants. Participants and indirect participants with
which beneficial owners of securities have accounts are also required by these
rules to make book-entry transfers and receive and transmit such payments on
behalf of their respective account holders.

     Because DTC can act only on behalf of participants, who in turn act only on
behalf of other participants or indirect participants, and on behalf of certain
banks, trust companies and other persons approved by it, the ability of a
beneficial owner of securities issued in book-entry form to pledge those
securities to persons or entities that do not participate in the DTC system may
be limited due to the unavailability of physical certificates for the
securities.

     DTC has advised us that it will take any action permitted to be taken by a
registered holder of any securities under the certificate, the indenture or any
deposit agreement only at the direction of one or more participants to whose
accounts with DTC the securities are credited.

     According to DTC, the information with respect to DTC has been provided to
its participants and other members of the financial community for informational
purposes only and is not intended to serve as a representation, warranty, or
contract modification of any kind.

     Unless otherwise specified in the applicable prospectus supplement, a
book-entry security will be exchangeable for definitive securities registered in
the names of persons other than DTC or its nominee only if:

     - DTC notifies us that it is unwilling or unable to continue as depositary
       for the book-entry security or DTC ceases to be a clearing agency
       registered under the Securities Exchange Act at a time when DTC is
       required to be so registered; or

     - we execute and deliver to the applicable registrar, transfer agent,
       trustee and/or depositary an order complying with the requirements of the
       certificate, the indenture or any deposit agreement that the book-entry
       security will be so exchangeable.

     Any book-entry security that is exchangeable in accordance with the
preceding sentence will be exchangeable for securities registered in such names
as DTC directs.

     If one of the events described in the immediately preceding paragraph
occurs, DTC is generally required to notify all participants of the availability
through DTC of definitive securities. Upon surrender by DTC of the book-entry
security representing the securities and delivery of instructions for
re-registration, the registrar, transfer agent, trustee or depositary, as the
case may be, will reissue the securities as definitive securities. After
reissuance of the securities, such persons will recognize the beneficial owners
of such definitive securities as registered holders of securities.

                                       45
<PAGE>   49

     Except as described above:

     - a book-entry security may not be transferred except as a whole book-entry
       security by or among DTC, a nominee of DTC and/or a successor depository
       appointed by us; and

     - DTC may not sell, assign or otherwise transfer any beneficial interest in
       a book-entry security unless the beneficial interest is in an amount
       equal to an authorized denomination for the securities evidenced by the
       book-entry security.

     None of Apache, the Apache Trusts, the trustees, any registrar and transfer
agent or any depositary, or any agent of any of them, will have any
responsibility or liability for any aspect of DTC's or any participant's records
relating to, or for payments made on account of, beneficial interests in a
book-entry security.

                              PLAN OF DISTRIBUTION

     We may sell the securities through agents, underwriters or dealers, or
directly to one or more purchasers without using underwriters or agents.

     We may designate agents who agree to use their reasonable efforts to
solicit purchases for the period of their appointment or to sell securities on a
continuing basis.

     If we use underwriters for a sale of securities, the underwriters will
acquire the securities for their own account. The underwriters may resell the
securities in one or more transactions, including negotiated transactions, at a
fixed public offering price or at varying prices determined at the time of sale.
The obligations of the underwriters to purchase the securities will be subject
to the conditions set forth in the applicable underwriting agreement. The
underwriters will be obligated to purchase all the securities offered if any of
those securities are purchased. Any initial public offering price and any
discounts or concessions allowed or re-allowed or paid to dealers will be
described in the applicable prospectus supplement and may be changed from time
to time.

     Underwriters, dealers and agents that participate in the distribution of
the securities may be underwriters as defined in the Securities Act and any
discounts or commissions they receive from us and any profit on their resale of
the securities may be treated as underwriting discounts and commissions under
the Securities Act. The applicable prospectus supplement will identify any
underwriters, dealers or agents and will describe their compensation. We may
have agreements with the underwriters, dealers and agents to indemnify them
against certain civil liabilities, including liabilities under the Securities
Act. Underwriters, dealers and agents may engage in transactions with or perform
services for us or our subsidiaries in the ordinary course of their businesses.

TRADING MARKETS AND LISTING OF SECURITIES

     Unless otherwise specified in the applicable prospectus supplement, each
class or series of securities will be a new issue with no established trading
market, other than the common stock, which is listed on the New York Stock
Exchange and the Chicago Stock Exchange. We may elect to list any other class or
series of securities on any exchange, but we are not obligated to do so. It is
possible that one or more underwriters may make a market in a class or series of
securities, but the underwriters will not be obligated to do so and may
discontinue any market making at any time without notice. We cannot give any
assurance as to the liquidity of the trading market for any of the securities.

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<PAGE>   50

STABILIZATION ACTIVITIES

     Any underwriter may engage in over-allotment, stabilizing transactions,
short-covering transactions and penalty bids in accordance with Regulation M
under the Securities Exchange Act. Over-allotment involves sales in excess of
the offering size, which create a short position. Stabilizing transactions
permit bids to purchase the underlying security so long as the stabilizing bids
do not exceed a specified maximum. Short-covering transactions involve purchases
of the securities in the open market after the distribution is completed to
cover short positions. Penalty bids permit the underwriters to reclaim a selling
concession from a dealer when the securities originally sold by the dealer are
purchased in a covering transaction to cover short positions. Those activities
may cause the price of the securities to be higher than it would otherwise be.
If commenced, the underwriters may discontinue any of the activities at any
time.

                                 LEGAL MATTERS

     The legality of the securities issued by Apache will be passed upon for
Apache by its Vice President and General Counsel, Z. S. Kobiashvili. As of the
date of this prospectus, Mr. Kobiashvili holds employee stock options to
purchase 56,550 shares of Apache common stock, of which options to purchase
30,125 shares are currently exercisable, and he holds 1,522 units in Apache's
Deferred Delivery Plan, each equivalent to one share of Apache common stock. In
addition, other customary legal matters relating to the offering of the
securities issued by Apache, including matters relating to our due
incorporation, legal existence and authorized capitalization, will be passed
upon for Apache by Mr. Kobiashvili or Mayor, Day, Caldwell & Keeton, L.L.P.,
Houston, Texas. The legality of the securities issued by the Apache Trusts and
certain matters of Delaware law will be passed upon for the Apache Trusts by
Richards, Layton & Finger, P.A., special Delaware counsel to the Apache Trusts.
Unless otherwise specified in the accompanying prospectus supplement, certain
legal matters will be passed upon for any underwriters or agents by Brown & Wood
LLP, New York, New York.

                                    EXPERTS

     The audited consolidated financial statements of Apache incorporated by
reference into this prospectus, have been audited by Arthur Andersen LLP,
independent public accountants, as indicated in their report with respect
thereto, and are incorporated by reference herein in reliance upon the authority
of said firm as experts in accounting and auditing in giving said report.

     The information incorporated by reference into this prospectus regarding
the total proved reserves of Apache was prepared by Apache and reviewed by Ryder
Scott Company Petroleum Engineers, as stated in their letter reports, and is
incorporated by reference in reliance upon the authority of said firm as experts
in such matters. The information incorporated by reference into this prospectus
regarding the total estimated proved reserves acquired from Texaco Exploration
and Production Inc. was prepared by Apache and reviewed by Ryder Scott, as
stated in their letter reports, and is incorporated by reference in reliance
upon the authority of that firm as experts in these matters. The information
incorporated by reference into this prospectus regarding the total proved
reserves of DEKALB was prepared by DEKALB and for the four years ended December
31, 1994 was reviewed by Ryder Scott, as stated in their letter reports with
respect thereto, and is incorporated by reference in reliance upon the authority
of that firm as experts in these matters.

     A portion of the information incorporated by reference in this prospectus
regarding the total proved reserves of Aquila Energy Resources Corporation
acquired by Apache was prepared by Netherland, Sewell & Associates, Inc. as of
December 31, 1994, as stated in their letter report, and is incorporated by
reference in reliance upon the authority of that firm as experts in those
matters. Netherland, Sewell did not review any of the reserves of Aquila
acquired during 1995.

                                       47
<PAGE>   51

                                    PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

     Estimated expenses, other than underwriting discounts and commissions, in
connection with the issuance and distribution of the securities are as follows:

<TABLE>
<S>                                                            <C>
Securities and Exchange Commission filing fee...............   $264,000
Rating agency fees..........................................     50,000
Legal fees and expenses.....................................    200,000
Accounting fees and expenses................................     75,000
Trustees' fees and expenses.................................     40,000
Printing and engraving......................................    100,000
Miscellaneous...............................................     30,000
                                                               --------
          Total.............................................   $759,000
                                                               ========
</TABLE>

ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS

     Apache's Certificate of Incorporation and bylaws provide that, to the full
extent permitted under the Delaware General Corporation Law, Apache's directors
shall not be personally liable for monetary damages and Apache shall indemnify
its officers, directors, employees and agents.

     Section 145 of the Delaware General Corporation Law, inter alia, authorizes
a corporation to indemnify any person who was or is a party or is threatened to
be made a party to any threatened, pending or completed action, suit or
proceeding, other than an action by or in the right of the corporation, because
such person is or was a director, officer, employee or agent of the corporation
or was serving at the request of the corporation as a director, officer,
employee or agent of another corporation or other enterprise, against expenses,
including attorneys' fees, judgments, fines and amounts paid in settlement
actually and reasonably incurred by him in connection with such suit or
proceeding if he acted in good faith and in a manner he reasonably believed to
be in or not opposed to the best interests of the corporation, and, with respect
to any criminal action or proceeding, had no reason to believe his conduct was
unlawful. Similar indemnity is authorized for such persons against expenses,
including attorneys' fees, actually and reasonably incurred in defense or
settlement of any such pending, completed or threatened action or suit by or in
the right of the corporation if such person acted in good faith and in a manner
he reasonably believed to be in or not opposed to the best interests of the
corporation, and provided further that, unless a court of competent jurisdiction
otherwise provides, such person shall not have been adjudged liable to the
corporation. Any such indemnification may be made only as authorized in each
specific case upon a determination by the stockholders or disinterested
directors that indemnification is proper because the indemnitee has met the
applicable standard of conduct.

     Section 145 further authorizes a corporation to purchase and maintain
insurance on behalf of any person who is or was a director, officer, employee or
agent of the corporation, or is or was serving at the request of the corporation
as a director, officer, employee or agent of another corporation or enterprise,
against any liability asserted against him and incurred by him in any such
capacity, or arising out of his status as such, whether or not the corporation
would otherwise have the power to indemnify him. Apache maintains policies
insuring its and its subsidiaries' officers and directors against certain
liabilities for actions taken in such capacities, including liabilities under
the Securities Act of 1933.

     Article VII of Apache's bylaws provides, in substance, that directors,
officers, employees and agents of Apache shall be indemnified to the extent
permitted by Section 145 of the Delaware

                                      II-1
<PAGE>   52

General Corporation Law. Additionally, Article Seventeen of Apache's restated
certificate of incorporation eliminates in certain circumstances the monetary
liability of directors of Apache for a breach of their fiduciary duty as
directors. These provisions do not eliminate the liability of a director:

     - for a breach of the director's duty of loyalty to Apache or its
       stockholders;

     - for acts or omissions by the director not in good faith;

     - for acts or omissions by a director involving intentional misconduct or a
       knowing violation of the law;

     - under Section 174 of the Delaware General Corporation Law, which relates
       to the declaration of dividends and purchase or redemption of shares in
       violation of the Delaware General Corporation Law; and

     - for transactions from which the director derived an improper personal
       benefit.

     Reference is made to the form of underwriting agreements to be incorporated
by reference in this registration statement for a description of the
indemnification arrangements Apache and the Apache Trusts agree to in connection
with offerings of the securities registered by this registration statement.

     The Apache Trusts' trust agreements provide that no trustee, affiliate of
any trustee or any officers, directors, stockholders, members, partners,
employees, representatives or agents of any trustee or any employee or agent of
the Apache Trust or its affiliates, each referred to as an "indemnified person,"
shall be liable, responsible or accountable in damages or otherwise to any
employee or agent of the Apache Trust or its affiliates, or any officers,
directors, stockholders, employees, representatives or agents of Apache or its
affiliates or to any holders of trust preferred securities of the Apache Trust
for any loss, damage or claim incurred by reason of any act or omission
performed or omitted by the indemnified person in good faith on behalf of such
Apache Trust and in a manner the indemnified person reasonably believed to be
within the scope of the authority conferred on it by the trust agreement or by
law, except that the indemnified person shall be liable for any loss, damage or
claim incurred by reason of that indemnified person's gross negligence (or, in
the case of the property trustee of the Apache Trust, negligence) or willful
misconduct with respect to such acts or omissions. The trust agreement also
provides that, to the fullest extent permitted by applicable law, the Apache
Trusts shall indemnify and hold harmless each indemnified person from and
against any loss, damage or claim incurred by an indemnified person by reason of
any act or omission performed or omitted by the indemnified person in good faith
on behalf of an Apache Trust and in a manner the indemnified person reasonably
believed to be within the scope of authority conferred on it by the trust
agreement, except that no indemnified person shall be entitled to be indemnified
in respect of any loss, damage or claim incurred by the indemnified person by
reason of gross negligence (or, in the case of the property trustee of the
Apache Trust, negligence) or willful misconduct with respect to such acts or
omissions. The trust agreement further provides that to the fullest extent
permitted by applicable law, expenses (including legal fees) incurred by an
indemnified person in defending any claim, demand, action, suit or the final
disposition of such claim, demand, action, suit or proceeding shall, from time
to time, be advanced by Apache prior to the final disposition of such claim,
demand, action, suit or proceeding upon receipt by Apache of an undertaking by
or on behalf of the indemnified person to repay such amount if it shall be
determined that the indemnified person is not entitled to be indemnified
pursuant to the trust agreement.

                                      II-2
<PAGE>   53

ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(a) Exhibits

<TABLE>
<CAPTION>
        EXHIBIT
          NO.                                    DESCRIPTION
        -------                                  -----------
<C>                      <S>
           1.1           -- Each form of underwriting agreement will be filed as an
                            exhibit to a current report of Apache and incorporated in
                            this registration statement by reference.
           3.1           -- Restated Certificate of Incorporation of Apache
                            (incorporated by reference to Exhibit 99.1 to Apache's
                            Current Report on Form 8-K, dated December 17, 1999, SEC
                            File No. 1-4300).
           3.2           -- Bylaws of Apache, as amended through July 14, 1999
                            (incorporated by reference to Exhibit 3.1 to Amendment
                            No. 1 to Apache's Current Report on Form 8-K/A, dated May
                            18, 1999 and filed July 30, 1999, SEC File No. 1-4300).
           4.1           -- Form of Apache's common stock certificate (incorporated
                            by reference to Exhibit 4.1 to the Apache's Annual Report
                            on Form 10-K for year ended December 31, 1995, SEC File
                            No. 1-4300).
           4.2           -- Rights Agreement dated January 31, 1996, between Apache
                            and Norwest Bank Minnesota, N.A., rights agent, relating
                            to the declaration of a rights dividend to Apache's
                            common shareholders of record on January 31, 1996
                            (incorporated by reference to Exhibit (a) to Apache's
                            Registration Statement on Form 8-A, dated January 24,
                            1996, SEC File No. 1-4300).
           4.3           -- Form of Apache's Right Certificate (incorporated by
                            reference to Exhibit (b) to Apache's Registration
                            Statement on Form 8-A, dated January 24, 1996, SEC File
                            No. 1-4300).
           4.4           -- Form of Indenture between Apache and The Chase Manhattan
                            Bank, as Trustee and successor to Chemical Bank,
                            governing the senior debt securities (incorporated by
                            reference to Exhibit 4.1 to Apache's Registration
                            Statement on Form S-3, Registration No. 33-63923, filed
                            November 2, 1995).
           4.5           -- Form of First Supplemental Indenture between Apache and
                            The Chase Manhattan Bank, as Trustee governing the senior
                            debt securities (incorporated by reference to Exhibit 4.1
                            to Apache's Current Report on Form 8-K, dated November 4,
                            1996, SEC File No. 1-4300).
         **4.6           -- Form of Subordinated Indenture.
           4.7           -- Each form of deposit agreement will be filed as an
                            exhibit to a current report of Apache and incorporated in
                            this registration statement by reference.
           4.8           -- Each form of preferred securities certificate designation
                            will be filed as an exhibit to a current report of Apache
                            and incorporated in this registration statement by
                            reference.
         **4.9           -- Form of Trust Preferred Securities Guarantee Agreement
                            for Apache Trust I and Apache Trust II.
          *4.10          -- Certificate of Trust of Apache Trust I.
          *4.11          -- Certificate of Trust of Apache Trust II.
          *4.12          -- Trust Agreement of Apache Trust I.
          *4.13          -- Trust Agreement of Apache Trust II.
</TABLE>

                                      II-3
<PAGE>   54

<TABLE>
<CAPTION>
        EXHIBIT
          NO.                                    DESCRIPTION
        -------                                  -----------
<C>                      <S>
         **4.14          -- Form of Amended and Restated Trust Agreement for Apache
                            Trust I and Apache Trust II.
         **4.15          -- Form of Trust Preferred Securities Certificate
                            (incorporated by reference to Exhibit A-1 of Exhibit
                            4.11).
         **5.1           -- Opinion of general counsel regarding legality of
                            securities being registered by Apache.
         **5.2           -- Opinion of Richards, Layton & Finger, P.A. regarding
                            legality of securities being registered by Apache Trust
                            I.
         **5.3           -- Opinion of Richards, Layton & Finger, P.A. regarding
                            legality of securities being registered by Apache Trust
                            II.
          12.1           -- Statements of computation of ratios of earnings to fixed
                            charges and ratios of earnings to combined fixed charges
                            and preferred stock dividends (incorporated by reference
                            to Exhibit 12.1 to Apache's Quarterly Report on Form 10-Q
                            for the quarter ended September 30, 1999, SEC File No.
                            1-4300).
         *23.1           -- Consent of Arthur Andersen LLP, Houston, Texas.
         *23.2           -- Consent of Ryder Scott Company L.P.
         *23.3           -- Consent of Netherland, Sewell & Associates, Inc.
        **23.4           -- Consent of general counsel (included in Exhibit 5.1).
        **23.5           -- Consent of Mayor, Day, Caldwell & Keeton, L.L.P.
        **23.6           -- Consent of Richards, Layton & Finger, P.A. (included in
                            Exhibits 5.2 and 5.3).
         *24.1           -- Power of Attorney (included in Part II as a part of the
                            signature pages of the Registration Statement).
         *24.2           -- Power of Attorney for Apache, as sponsor, to sign the
                            Registration Statement on behalf Apache Trust I (included
                            in Exhibit 4.12).
         *24.3           -- Power of Attorney for Apache, as sponsor, to sign the
                            Registration Statement on behalf of Apache Trust II
                            (included in Exhibit 4.13).
        **25.1           -- Form T-1 Statement of Eligibility and Qualification under
                            Trust Indenture Act of 1939 of The Chase Manhattan Bank
                            as trustee under the Senior Indenture.
        **25.2           -- Form T-1 Statement of Eligibility and Qualification under
                            Trust Indenture Act of 1939 of The Chase Manhattan Bank
                            as trustee under the Subordinated Indenture.
        **25.3           -- Form T-1 Statement of Eligibility and Qualification under
                            Trust Indenture Act of 1939 of The Chase Manhattan Bank
                            as property trustee and Chase Manhattan Bank Delaware as
                            Delaware trustee under the Amended and Restated Trust
                            Agreement for Apache Trust I.
        **25.4           -- Form T-1 Statement of Eligibility and Qualification under
                            Trust Indenture Act of 1939 of The Chase Manhattan Bank
                            as property trustee and Chase Manhattan Bank Delaware as
                            Delaware trustee under the Amended and Restated Trust
                            Agreement for Apache Trust II.
        **25.5           -- Form T-1 Statement of Eligibility and Qualification under
                            Trust Indenture Act of 1939 of The Chase Manhattan Bank
                            as guarantee trustee under the Trust Preferred Securities
                            Guarantee Agreement for Apache Trust I.
</TABLE>

                                      II-4
<PAGE>   55

<TABLE>
<CAPTION>
        EXHIBIT
          NO.                                    DESCRIPTION
        -------                                  -----------
<C>                      <S>
        **25.6           -- Form T-1 Statement of Eligibility and Qualification under
                            Trust Indenture Act of 1939 of The Chase Manhattan Bank
                            as guarantee trustee under the Trust Preferred Securities
                            Guarantee Agreement for Apache Trust II.
</TABLE>

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

 * Filed herewith.

** To be filed by pre-effective amendment.

ITEM 17. UNDERTAKINGS

     1. The undersigned Registrants hereby undertake:

          (a) To file, during any period in which offers or sales are being
     made, a post-effective amendment to this Registration Statement.

             (i) To include any prospectus required by Section 10(a)(3) of the
        Securities Act of 1933;

             (ii) To reflect in the prospectus any facts or events arising after
        the effective date of the Registration Statement (or the most recent
        post-effective amendment thereof) which, individually or in the
        aggregate, represent a fundamental change in the information set forth
        in the Registration Statement. Notwithstanding the foregoing, any
        increase or decrease in the volume of securities offered (if the total
        dollar value of securities offered would not exceed that which was
        registered) and any deviation from the low or high and of the estimated
        maximum offering range may be reflected in the form of prospectus filed
        with the Commission pursuant to Rule 424(b) if, in the aggregate, the
        changes in volume and price represent no more than 20 percent change in
        the maximum aggregate offering price set forth in the "Calculations of
        Registration Fee" table in the effective Registration Statement; and

             (iii) To include any material information with respect to the plan
        of distribution not previously disclosed in the Registration Statement
        or any material change to such information in the Registration
        Statement;

           Provided, however, that paragraphs (a)(i) and (a)(ii) do not apply if
           the information required to be included in a post-effective amendment
           by those paragraphs is contained in periodic reports filed by the
           Registrant pursuant to Section 13 or 15(d) of the Securities Exchange
           Act of 1934, that are incorporated by reference in the Registration
           Statement;

          (b) That, for the purpose of determining any liability under the
     Securities Act of 1933, each such post-effective amendment shall be deemed
     to be a new Registration Statement relating to the securities offered
     therein, and the offering of such securities at that time shall be deemed
     to be the initial bona fide offering thereof; and

          (c) To remove from registration by means of a post-effective amendment
     any of the securities being registered which remain unsold at the
     termination of the offering.

     2. The undersigned Registrants hereby undertake that, for purposes of
determining any liability under the Securities Act of 1933, each filing of
Apache's annual report pursuant to Section 13(a) or 15(d) of the Securities
Exchange Act of 1934 (and, where applicable, each filing of an employee benefit
plan's annual report pursuant to Section 15(d) of the Securities Exchange Act of
1934 that is incorporated by reference in the Registration Statement) shall be
deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.

                                      II-5
<PAGE>   56

     3. Insofar as indemnification for liabilities arising under the Securities
Act of 1933, may be permitted to directors, officers and controlling persons of
the Registrants pursuant to the provisions described under Item 15 above, or
otherwise, the Registrants have been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public policy
as expressed in the Act and is, therefore, unenforceable. In the event that a
claim for indemnification against such liabilities (other than the payment by
any Registrant of expenses incurred or paid by a director, officer or
controlling person of that Registrant in the successful defense of any action,
suit or proceeding) is asserted against any Registrant by such director, officer
or controlling person in connection with the securities being registered, that
Registrant will, unless in the opinion of its counsel the matter has been
settled by controlling precedent, submit to a court of appropriate jurisdiction
the question whether such indemnification by it is against public policy as
expressed in the Act and will be governed by the final adjudication of such
issue.

     4. The undersigned Registrants hereby undertake that:

          (a) For the purpose of determining any liability under the Securities
     Act of 1933, the information omitted from the form of prospectus filed as
     part of this Registration Statement in reliance upon Rule 430A and
     contained in a form of prospectus filed by the Registrants pursuant to Rule
     424(b)(1) or (4) or 497(h) under the Securities Act, as amended, shall be
     deemed to be part of this Registration Statement as of the time it was
     declared effective; and

          (b) For the purpose of determining any liability under the Securities
     Act of 1933, each post-effective amendment that contains a form of
     prospectus shall be deemed to be a new registration statement relating to
     the securities offered therein, and the offering of such securities at that
     time shall be deemed to be the initial bona fide offering thereof.

     5. The undersigned Registrants hereby undertake to file an application for
the purpose of determining the eligibility of the trustee to act under
subsection (a) of Section 310 of the Trust Indenture Act in accordance with the
rules and regulations prescribed by the Commission under Section 305(b)(2) of
the Act.

                                      II-6
<PAGE>   57

                                   SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, each Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-3 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized in the City of Houston, State of Texas on March 15, 2000.

                                            APACHE CORPORATION

                                            By:     /s/ RAYMOND PLANK
                                              ----------------------------------
                                                        Raymond Plank,
                                                 Chairman and Chief Executive
                                                            Officer

                                            APACHE TRUST I

                                            By: Apache Corporation, as sponsor

                                            By:     /s/ RAYMOND PLANK
                                              ----------------------------------
                                                        Raymond Plank,
                                                 Chairman and Chief Executive
                                                            Officer

                                            APACHE TRUST II

                                            By: Apache Corporation, as sponsor

                                            By:     /s/ RAYMOND PLANK
                                              ----------------------------------
                                                        Raymond Plank,
                                                 Chairman and Chief Executive
                                                            Officer

     The undersigned directors and officers of Apache Corporation do hereby
constitute and appoint Raymond Plank, G. Steven Farris, Z. S. Kobiashvili and
Roger B. Plank, and each of them, with full power of substitution, our true and
lawful attorneys-in-fact to sign and execute, on behalf of the undersigned, any
and all amendments (including post-effective amendments) to this Registration
Statement; and each of the undersigned does hereby ratify and confirm all that
said attorneys-in-fact shall do or cause to be done by virtue hereof.

     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons, in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
                     SIGNATURE                                     TITLE                      DATE
                     ---------                                     -----                      ----
<C>                                                    <S>                              <C>

                 /s/ RAYMOND PLANK                     Chairman and Chief Executive        March 15, 2000
- ---------------------------------------------------      Officer (Principal
                   Raymond Plank                         Executive Officer)

                /s/ ROGER B. PLANK                     Vice President and Chief            March 15, 2000
- ---------------------------------------------------      Financial Officer
                  Roger B. Plank                         (Principal Financial
                                                         Officer)

              /s/ THOMAS L. MITCHELL                   Vice President and Controller       March 15, 2000
- ---------------------------------------------------      (Principal Accounting
                Thomas L. Mitchell                       Officer)
</TABLE>
<PAGE>   58

<TABLE>
<CAPTION>
                     SIGNATURE                                      TITLE                       DATE
                     ---------                                      -----                       ----
<C>                                                    <S>                                 <C>

              /s/ FREDERICK M. BOHEN                   Director                            March 15, 2000
- ---------------------------------------------------
                Frederick M. Bohen

               /s/ G. STEVEN FARRIS                    Director                            March 15, 2000
- ---------------------------------------------------
                 G. Steven Farris

              /s/ RANDOLPH M. FERLIC                   Director                            March 15, 2000
- ---------------------------------------------------
                Randolph M. Ferlic

              /s/ EUGENE C. FIEDOREK                   Director                            March 15, 2000
- ---------------------------------------------------
                Eugene C. Fiedorek

               /s/ A.D. FRAZIER, JR.                   Director                            March 15, 2000
- ---------------------------------------------------
                 A.D. Frazier, Jr.

              /s/ STANLEY K. HATHAWAY                  Director                            March 15, 2000
- ---------------------------------------------------
                Stanley K. Hathaway

                 /s/ JOHN A. KOCUR                     Director                            March 15, 2000
- ---------------------------------------------------
                   John A. Kocur

            /s/ GEORGE D. LAWRENCE JR.                 Director                            March 15, 2000
- ---------------------------------------------------
              George D. Lawrence Jr.

                /s/ MARY RALPH LOWE                    Director                            March 15, 2000
- ---------------------------------------------------
                  Mary Ralph Lowe

                 /s/ F. H. MERELLI                     Director                            March 15, 2000
- ---------------------------------------------------
                   F. H. Merelli

                                                       Director                            March   , 2000
- ---------------------------------------------------
                 Rodman D. Patton

                /s/ JOSEPH A. RICE                     Director                            March 15, 2000
- ---------------------------------------------------
                  Joseph A. Rice
</TABLE>
<PAGE>   59

                               INDEX TO EXHIBITS

<TABLE>
<CAPTION>
        EXHIBIT
          NO.                                    DESCRIPTION
        -------                                  -----------
<C>                      <S>
           4.10          -- Certificate of Trust of Apache Trust I.
           4.11          -- Certificate of Trust of Apache Trust II.
           4.12          -- Trust Agreement of Apache Trust I.
           4.13          -- Trust Agreement of Apache Trust II.
          23.1           -- Consent of Arthur Andersen LLP, Houston, Texas.
          23.2           -- Consent of Ryder Scott Company L.P.
          23.3           -- Consent of Netherland, Sewell & Associates, Inc.
          24.1           -- Power of Attorney (included in Part II as a part of the
                            signature pages of the Registration Statement).
          24.2           -- Power of Attorney for Apache, as sponsor, to sign the
                            Registration Statement on behalf Apache Trust I (included
                            in Exhibit 4.12).
          24.3           -- Power of Attorney for Apache, as sponsor, to sign the
                            Registration Statement on behalf of Apache Trust II
                            (included in Exhibit 4.13).
</TABLE>

<PAGE>   1
                                                                    EXHIBIT 4.10

                              CERTIFICATE OF TRUST

                                       OF

                                 APACHE TRUST I


     This Certificate of Trust of Apache Trust I (the "Trust"), dated March 13,
2000, is being duly executed and filed by the undersigned, as trustees, to form
a business trust under the Delaware Business Trust Act (12 Del. C. Section
3801, et seq.)(the "Act").

     1.   Name. The name of the business trust formed by this Certificate of
Trust is Apache Trust I.

     2.   Delaware Trustee. The name and business address of the trustee of the
Trust with its principal place of business in the State of Delaware are Chase
Manhattan Bank Delaware, 1201 Market Street, Wilmington, Delaware 19801,
Attention: Corporate Trust Adminstration.

     3.   Effective Date. This Certificate of Trust shall be effective upon
filing with the Secretary of State of the State of Delaware.

     4.   Counterparts. This Certificate of Trust may be executed in one or
more counterparts.



                            [SIGNATURE PAGE FOLLOWS]

<PAGE>   2

     IN WITNESS WHEREOF, the undersigned, being the trustees of the Trust, have
executed this Certificate of Trust in accordance with Section 3811(a)(1) of the
Act.

                                    CHASE MANHATTAN BANK DELAWARE, not
                                    in its individual capacity but solely
                                    as trustee



                                    By: /s/ DENIS KELLY
                                        ------------------------------------
                                        Name: Denis Kelly
                                        Title: Assistant Vice President


                                    THE CHASE MANHATTAN BANK, not in its
                                    individual capacity but solely as trustee

                                    By: /s/ WALTER I. JOHNSON, III
                                        ------------------------------------
                                        Name: Walter I. Johnson, III
                                        Title: Assistant Treasurer


                                    THOMAS L. MITCHELL, not in his individual
                                    capacity but solely as trustee of the Trust

                                     /s/ THOMAS L. MITCHELL
                                    --------------------------------------------


                                    MATTHEW W. DUNDREA, not in his individual
                                    capacity but solely as trustee of the Trust


                                     /s/ MATTHEW W. DUNDREA
                                    --------------------------------------------


<PAGE>   1
                                                                    EXHIBIT 4.11

                              CERTIFICATE OF TRUST

                                       OF

                                APACHE TRUST II



               This Certificate of Trust of Apache Trust II (the "Trust"), dated
March 13, 2000, is being duly executed and filed by the undersigned, as
trustees, to form a business trust under the Delaware Business Trust Act (12
Del. C. Section 3801, et seq.) (the "Act").


               1.     Name. The name of the business trust formed by this
Certificate of Trust is Apache Trust II.

               2.     Delaware Trustee. The name and business address of the
trustee of the Trust with its principal place of business in the State of
Delaware are Chase Manhattan Bank Delaware, 1201 Market Street, Wilmington,
Delaware 19801, Attention: Corporate Trust Administration.

               3.     Effective Date. This Certificate of Trust shall be
effective upon filing with the Secretary of State of the State of Delaware.

               4.     Counterparts. This Certificate of Trust may be executed in
one or more counterparts.





                            [SIGNATURE PAGE FOLLOWS]

<PAGE>   2
          IN WITNESS WHEREOF, the undersigned, being the trustees of the Trust,
have executed this Certificate of Trust in accordance with Section 3811(a)(1) of
the Act.

                              CHASE MANHATTAN BANK DELAWARE, not in its
                              individual capacity but solely as trustee


                              By:  /s/ DENIS KELLY
                                  ----------------------------------------------
                                  Name: Denis Kelly
                                  Title: Assistant Vice President


                              THE CHASE MANHATTAN BANK, not in its individual
                              capacity but solely as trustee


                              By:  /s/ WALTER I. JOHNSON, III
                                  ----------------------------------------------
                                  Name: Walter I. Johnson, III
                                  Title: Assistant Treasurer


                              THOMAS L. MITCHELL, not in his individual capacity
                              but solely as trustee of the Trust


                              /s/ THOMAS L. MITCHELL
                              --------------------------------------------------



                              MATTHEW W. DUNDREA, not in his individual
                              capacity but solely as trustee of the Trust

                              /s/ MATTHEW W. DUNDREA
                              --------------------------------------------------


<PAGE>   1
                                                                   EXHIBIT 4.12



                                TRUST AGREEMENT
                                       OF
                                 APACHE TRUST I

         THIS TRUST AGREEMENT OF APACHE TRUST I is dated as of March 13, 2000
(this "Trust Agreement"), by and among Apache Corporation, a Delaware
corporation, as sponsor (the "Sponsor"), and The Chase Manhattan Bank, a New
York banking corporation, as trustee, Chase Manhattan Bank Delaware, a Delaware
banking corporation, as trustee, and Thomas L. Mitchell and Matthew W. Dundrea,
each an individual, as trustees (collectively, the "Trustees"). The Sponsor and
the Trustees hereby agree as follows:

         1. The trust created hereby shall be known as "Apache Trust I" (the
"Trust"), in which name the Trustees or the Sponsor, to the extent provided
herein, may conduct the business of the Trust, make and execute contracts, and
sue and be sued.

         2. The Sponsor hereby assigns, transfers, conveys and sets over to the
Trust the sum of $10. Such amount shall constitute the initial trust estate. It
is the intention of the parties hereto that the Trust created hereby constitute
a business trust under Chapter 38 of Title 12 of the Delaware Code, 12 Del. C.
Section 3801, et seq. (the "Business Trust Act"), and that this document
constitute the governing instrument of the Trust. The Trustees are hereby
authorized and directed to execute and file a certificate of trust with the
Secretary of State of the State of Delaware in such form as the Trustees may
approve.

         3. The Sponsor and the Trustees will enter into an amended and
restated Trust Agreement satisfactory to each such party to provide for the
contemplated operation of the Trust created hereby and the issuance of the
trust preferred securities and trust common securities referred to therein.
Prior to the execution and delivery of such amended and restated Trust
Agreement, the Trustees shall not have any duty or obligation hereunder or
with respect of the trust estate, except as otherwise contemplated by this Trust
Agreement, required by applicable law or as may be necessary to obtain prior to
such execution and delivery any licenses, consents or approvals required by
applicable law or otherwise. Notwithstanding the foregoing, the Trustees may
take all actions deemed proper as are necessary to effect the transactions
contemplated herein.

         4. The Sponsor, on behalf of the Trust, is hereby authorized (i) to
prepare and file with the Securities and Exchange Commission (the "Commission")
and to execute, in the case of the 1933 Act Registration Statement and 1934 Act
Registration Statement (as herein defined), on behalf of the Trust, (a) a
Registration Statement (the "1933 Act Registration Statement"), including all
pre-effective and post-effective amendments thereto, relating to the
registration under the Securities Act of 1933, as amended (the "1933 Act"), of
the trust preferred securities of the Trust, (b) any preliminary prospectus or
prospectus or supplement thereto relating to the trust preferred securities of
the Trust required to be filed pursuant to the 1933 Act, and (c) a Registration
Statement on Form 8-A or other appropriate form (the "1934 Act Registration
Statement"), including all pre-effective and post-effective amendments
thereto, relating to the registration of the trust preferred securities of the
Trust under the Securities Exchange Act of ]934, as amended; (ii) if and at
such time as determined by the Sponsor, to file with the New



<PAGE>   2




York Stock Exchange or other exchange, or the National Association of
Securities Dealers ("NASD"), and execute on behalf of the Trust a listing
application and all other applications, statements, certificates, agreements
and other instruments as shall be necessary or desirable to cause the trust
preferred securities of the Trust to be listed on the New York Stock Exchange
or such other exchange, or the NASD's Nasdaq National Market; (iii) to file and
execute on behalf of the Trust, such applications, reports, surety bonds,
irrevocable consents, appointments of attorney for service of process and other
papers and documents that shall be necessary or desirable to register the trust
preferred securities of the Trust under the securities or "blue sky" laws of
such jurisdictions as the Sponsor, on behalf of the Trust, may deem necessary
or desirable; (iv) to execute and deliver letters or documents to, or
instruments for filing with, a depository relating to the trust preferred
securities of the Trust; and (v) to execute, deliver and perform on behalf of
the Trust an underwriting agreement with one or more underwriters relating to
the offering of the trust preferred securities of the Trust.

         In the event that any filing referred to in this Section 4 is required
by the rules and regulations of the Commission, the New York Stock Exchange or
other exchange, NASD, or state securities or "blue sky" laws to be executed on
behalf of the Trust by the Trustees, the Trustees, in their capacity as
trustees of the Trust, are hereby authorized to join in any such filing and to
execute on behalf of the Trust any and all of the foregoing, it being
understood that each of the Trustees, in its capacity as a trustee of the
Trust, shall not be required to join in any such filing or execute on behalf of
the Trust any such document unless such Trustee is required to do so by the
rules and regulations of the Commission, the New York Stock Exchange or other
exchange, NASD, or state securities or "blue sky" laws.

         5.     This Trust Agreement may be executed in one or more
counterparts.

         6.     The number of trustees of the Trust initially shall be four and
thereafter the number of trustees of the Trust shall be such number as shall
be fixed from time to time by a written instrument signed by the Sponsor which
may increase or decrease the number of trustees of the Trust; provided,
however, that to the extent required by the Business Trust Act, one trustee of
the Trust shall either be a natural person who is a resident of the State of
Delaware or, if not a natural person, an entity which has its principal place
of business in the State of Delaware and otherwise meets the requirements of
applicable law. Subject to the foregoing, the Sponsor is entitled to appoint or
remove without cause any trustee of the Trust at any time. Any trustee of the
Trust may resign upon thirty days' prior notice to the Sponsor.

         7.     The Sponsor hereby agrees to (i) reimburse the Trustees for all
reasonable expenses (including reasonable fees and expenses of counsel and
other experts) and (ii) indemnify, defend and hold harmless the Trustees and
any of the officers, directors, employees and agents of the Trustees (the
"Indemnified Persons") from and against and all losses, damages, liabilities,
claims, actions, suits, costs, expenses, disbursements (including the
reasonable fees and expenses of counsel), taxes and penalties of any kind and
nature whatsoever (collectively, "Expenses"), to the extent that such Expenses
arise out of or are imposed upon or asserted at any time against such
Indemnified Persons with respect to the performance of this Trust Agreement,
the creation, operation or termination of the Trust or the transactions
contemplated hereby; provided, however, that the Sponsor shall not be required
to indemnify any Indemnified Person for any Expenses



                                   -2-


<PAGE>   3


which are a result of the willful misconduct, bad faith or gross negligence of
such Indemnified Person.

         8.     The Trust may be dissolved and terminated before the issuance
of the trust preferred securities of the Trust at the election of the Sponsor.

         9.     This Trust Agreement shall be governed by, and construed in
accordance with, the laws of the State of Delaware (without regard to conflict
of laws principles).



                            [SIGNATURE PAGE FOLLOWS]




                                      -3-

<PAGE>   4




         IN WITNESS WHEREOF, the parties hereto have caused this Trust
Agreement to be duly executed as of the day and year first above written.

                                          APACHE CORPORATION, as Sponsor

                                          By:     /s/ MATTHEW W. DUNDREA
                                               --------------------------------
                                               Name:  Matthew W. Dundrea
                                               Title: Vice President and
                                                      Treasurer


                                          THE CHASE MANHATTAN BANK, as
                                          trustee

                                          By:     /s/ WALTER I. JOHNSON, III
                                               --------------------------------
                                               Name:  Walter I. Johnson, III
                                               Title: Assistant Treasurer



                                          CHASE MANHATTAN BANK
                                          DELAWARE, as trustee

                                          By:     /s/ DENIS KELLY
                                               --------------------------------
                                               Name:  Denis Kelly
                                               Title: Assistant Vice President


                                          THOMAS L. MITCHELL, as trustee


                                          /s/ THOMAS L. MITCHELL
                                          -------------------------------------


                                          MATTHEW W. DUNDREA, as trustee


                                          /s/ MATTHEW  W. DUNDREA
                                          -------------------------------------





                                      -4-

<PAGE>   1
                                                                    EXHIBIT 4.13

                                 TRUST AGREEMENT
                                       OF
                                 APACHE TRUST II

     THIS TRUST AGREEMENT OF APACHE TRUST II is dated as of March 13, 2000 (this
"Trust Agreement"), by and among Apache Corporation, a Delaware corporation, as
sponsor (the "Sponsor"), and The Chase Manhattan Bank, a New York banking
corporation, as trustee, Chase Manhattan Bank Delaware, a Delaware banking
corporation, as trustee, and Thomas L. Mitchell and Matthew W. Dundrea, each an
individual, as trustees (collectively, the "Trustees"). The Sponsor and the
Trustees hereby agree as follows:

     1. The trust created hereby shall be known as "Apache Trust II" (the
"Trust"), in which name the Trustees or the Sponsor, to the extent provided
herein, may conduct the business of the Trust, make and execute contracts, and
sue and be sued.

     2. The Sponsor hereby assigns, transfers, conveys and sets over to the
Trust the sum of $10. Such amount shall constitute the initial trust estate. It
is the intention of the parties hereto that the Trust created hereby constitute
a business trust under Chapter 38 of Title 12 of the Delaware Code, 12 Del. C.
Section 3801, et seq. (the "Business Trust Act"), and that this document
constitute the governing instrument of the Trust. The Trustees are hereby
authorized and directed to execute and file a certificate of trust with the
Secretary of State of the State of Delaware in such form as the Trustees may
approve.

     3. The Sponsor and the Trustees will enter into an amended and restated
Trust Agreement satisfactory to each such party to provide for the contemplated
operation of the Trust created hereby and the issuance of the trust preferred
securities and trust common securities referred to therein. Prior to the
execution and delivery of such amended and restated Trust Agreement, the
Trustees shall not have any duty or obligation hereunder or with respect of the
trust estate, except as otherwise contemplated by this Trust Agreement, required
by applicable law or as may be necessary to obtain prior to such execution and
delivery any licenses, consents or approvals required by applicable law or
otherwise. Notwithstanding the foregoing, the Trustees may take all actions
deemed proper as are necessary to effect the transactions contemplated herein.

     4. The Sponsor, on behalf of the Trust, is hereby authorized (i) to prepare
and file with the Securities and Exchange Commission (the "Commission") and to
execute, in the case of the 1933 Act Registration Statement and 1934 Act
Registration Statement (as herein defined), on behalf of the Trust, (a) a
Registration Statement (the "1933 Act Registration Statement"), including all
pre-effective and post-effective amendments thereto, relating to the
registration under the Securities Act of 1933, as amended (the "1933 Act"), of
the trust preferred securities of the Trust, (b) any preliminary prospectus or
prospectus or supplement thereto relating to the trust preferred securities of
the Trust required to be filed pursuant to the 1933 Act, and (c) a Registration
Statement on Form 8-A or other appropriate form (the "1934 Act Registration
Statement"), including all pre-effective and post-effective amendments thereto,
relating to the registration of the trust preferred securities of the Trust
under the Securities Exchange Act of 1934, as amended; (ii) if and at such time
as determined by the Sponsor, to file with the New



<PAGE>   2

York Stock Exchange or other exchange, or the National Association of Securities
Dealers ("NASD"), and execute on behalf of the Trust a listing application and
all other applications, statements, certificates, agreements and other
instruments as shall be necessary or desirable to cause the trust preferred
securities of the Trust to be listed on the New York Stock Exchange or such
other exchange, or the NASD's Nasdaq National Market; (iii) to file and execute
on behalf of the Trust, such applications, reports, surety bonds, irrevocable
consents, appointments of attorney for service of process and other papers and
documents that shall be necessary or desirable to register the trust preferred
securities of the Trust under the securities or "blue sky" laws of such
jurisdictions as the Sponsor, on behalf of the Trust, may deem necessary or
desirable; (iv) to execute and deliver letters or documents to, or instruments
for filing with, a depository relating to the trust preferred securities of the
Trust; and (v) to execute, deliver and perform on behalf of the Trust an
underwriting agreement with one or more underwriters relating to the offering of
the trust preferred securities of the Trust.

     In the event that any filing referred to in this Section 4 is required by
the rules and regulations of the Commission, the New York Stock Exchange or
other exchange, NASD, or state securities or "blue sky" laws to be executed on
behalf of the Trust by the Trustees, the Trustees, in their capacity as trustees
of the Trust, are hereby authorized to join in any such filing and to execute on
behalf of the Trust any and all of the foregoing, it being understood that each
of the Trustees, in its capacity as a trustee of the Trust, shall not be
required to join in any such filing or execute on behalf of the Trust any such
document unless such Trustee is required to do so by the rules and regulations
of the Commission, the New York Stock Exchange or other exchange, NASD, or state
securities or "blue sky" laws.

     5. This Trust Agreement may be executed in one or more counterparts.

      6. The number of trustees of the Trust initially shall be four and
thereafter the number of trustees of the Trust shall be such number as shall be
fixed from time to time by a written instrument signed by the Sponsor which may
increase or decrease the number of trustees of the Trust; provided, however,
that to the extent required by the Business Trust Act, one trustee of the Trust
shall either be a natural person who is a resident of the State of Delaware or,
if not a natural person, an entity which has its principal place of business in
the State of Delaware and otherwise meets the requirements of applicable law.
Subject to the foregoing, the Sponsor is entitled to appoint or remove without
cause any trustee of the Trust at any time. Any trustee of the Trust may resign
upon thirty days' prior notice to the Sponsor.

     7. The Sponsor hereby agrees to (i) reimburse the Trustees for all
reasonable expenses (including reasonable fees and expenses of counsel and other
experts) and (ii) indemnify, defend and hold harmless the Trustees and any of
the officers, directors, employees and agents of the Trustees (the "Indemnified
Persons") from and against and all losses, damages, liabilities, claims,
actions, suits, costs, expenses, disbursements (including the reasonable fees
and expenses of counsel), taxes and penalties of any kind and nature whatsoever
(collectively, "Expenses"), to the extent that such Expenses arise out of or are
imposed upon or asserted at any time against such Indemnified Persons with
respect to the performance of this Trust Agreement, the creation, operation or
termination of the Trust or the transactions contemplated hereby; provided,
however, that the Sponsor shall not be required to indemnify any Indemnified
Person for any Expenses



<PAGE>   3

which are a result of the willful misconduct, bad faith or gross negligence of
such Indemnified Person.

     8. The Trust may be dissolved and terminated before the issuance of the
trust preferred securities of the Trust at the election of the Sponsor.

     9. This Trust Agreement shall be governed by, and construed in accordance
with, the laws of the State of Delaware (without regard to conflict of laws
principles).



                            [SIGNATURE PAGE FOLLOWS]




                                      -3-
<PAGE>   4

     IN WITNESS WHEREOF, the parties hereto have caused this Trust Agreement to
be duly executed as of the day and year first above written.

                                       APACHE CORPORATION, as Sponsor



                                       By: /s/ MATTHEW W. DUNDREA
                                          --------------------------------------
                                          Name: Matthew W. Dundrea
                                          Title: Vice President and Treasurer


                                       THE CHASE MANHATTAN BANK, as
                                       trustee



                                       By: /s/ WALTER I. JOHNSON, III
                                          --------------------------------------
                                          Name: Walter I. Johnson, III
                                          Title: Assistant Treasurer

                                       CHASE MANHATTAN BANK
                                       DELAWARE, as trustee


                                       By: /s/ DENIS KELLY
                                          --------------------------------------
                                          Name: Denis Kelly
                                          Title: Assistant Vice President


                                       THOMAS L. MITCHELL, as trustee


                                       /s/ THOMAS L. MITCHELL
                                       -----------------------------------------

                                       MATTHEW W. DUNDREA, as trustee


                                       /s/ MATTHEW W. DUNDREA
                                       -----------------------------------------




                                      -4-

<PAGE>   1
                                                                    EXHIBIT 23.1

                         CONSENT OF ARTHUR ANDERSEN LLP

As independent public accountants, we hereby consent to the incorporation by
reference in this registration statement of our report dated March 5, 1999 on
the audited consolidated financial statements of Apache Corporation and
subsidiaries included in the Apache Corporation Annual Report on Form 10-K for
the year ended December 31, 1998, and to all references to our Firm included
in this registration statement.


                                        /s/ ARTHUR ANDERSEN LLP
                                        ----------------------------
                                            ARTHUR ANDERSEN LLP

Houston, Texas
March 14, 2000


<PAGE>   1
                                                                    EXHIBIT 23.2

                        [RYDER SCOTT COMPANY LETTERHEAD]

                      CONSENT OF RYDER SCOTT COMPANY L.P.

     As independent petroleum engineers, we hereby consent to the incorporation
by reference in this registration statement of our Firm's review of the proved
oil and gas reserve quantities of Apache Corporation as of January 1, 1999, and
to all references to our Firm included in this registration statement.


                                               /s/ RYDER SCOTT COMPANY, L.P.
                                                   -------------------------
                                                   RYDER SCOTT COMPANY, L.P.

Houston, Texas
March 13, 2000



<PAGE>   1
                                                                    EXHIBIT 23.3


               [NETHERLAND, SEWELL & ASSOCIATES, INC. LETTERHEAD]



           CONSENT OF INDEPENDENT PETROLEUM ENGINEERS AND GEOLOGISTS


     As independent petroleum engineers and geologists, we hereby consent to the
incorporation by reference in this registration statement of our Firm's review
of the proved oil and gas reserve quantities as of January 1, 1997, for certain
of Apache Corporation's interests located in The Arab Republic of Egypt, and to
all references to our Firm included in this Registration Statement.


                                        NETHERLAND, SEWELL & ASSOCIATES, INC.



                                        By: /s/ CLARENCE M. NETHERLAND
                                           -------------------------------------
                                            Clarence M. Netherland
                                            Chairman


Dallas, Texas
March 15, 2000


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