APACHE CORP
10-K, 1994-03-21
CRUDE PETROLEUM & NATURAL GAS
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                                   FORM 10-K
 
[MARK ONE]
[X]          ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE
                 SECURITIES EXCHANGE ACT OF 1934 [FEE REQUIRED]
                  FOR THE FISCAL YEAR ENDED DECEMBER 31, 1993,
 
                                       OR
 
[  ]       TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE
               SECURITIES EXCHANGE ACT OF 1934 [NO FEE REQUIRED]
           FOR THE TRANSITION PERIOD FROM __________ TO ___________
 
                         COMMISSION FILE NUMBER 1-4300
 
                               APACHE CORPORATION
 
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<S>                                           <C>
                  A DELAWARE                                   IRS EMPLOYER
                 CORPORATION                                  NO. 41-0747868
</TABLE>
 
                              ONE POST OAK CENTRAL
                       2000 POST OAK BOULEVARD, SUITE 100
                           HOUSTON, TEXAS 77056-4400
 
                        Telephone Number (713) 296-6000
 
          SECURITIES REGISTERED PURSUANT TO SECTION 12(B) OF THE ACT:
 
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<CAPTION>
                                                         NAME OF EACH EXCHANGE
    TITLE OF EACH CLASS                                   ON WHICH REGISTERED
    -------------------                                  ---------------------
<S>                                                     <C>
Common Stock, $1.25 Par Value                           New York Stock Exchange
                                                        Chicago Stock Exchange
Common Stock Purchase Rights                            New York Stock Exchange
                                                        Chicago Stock Exchange
9.25% Notes due 2002                                    New York Stock Exchange
</TABLE>
 
        SECURITIES REGISTERED PURSUANT TO SECTION 12(G) OF THE ACT: NONE
 
     Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.                  Yes  X    No
 
     Indicate by check mark if disclosure of delinquent filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K.  / /
 
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<S>                                                                            <C>
Aggregate market value of the voting stock held by non-affiliates
  of registrant as of March 17, 1994                                            $1,599,465,322
Number of shares of registrant's common stock outstanding
  as of March 17, 1994                                                              61,223,553
</TABLE>
 
                      DOCUMENTS INCORPORATED BY REFERENCE:
 
     Portions of registrant's proxy statement relating to registrant's 1994
annual meeting of shareholders have been incorporated by reference into Part III
hereof.
 
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<PAGE>   2
 
                               TABLE OF CONTENTS
 
                                  DESCRIPTION
 
 
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ITEM                                                                                       PAGE
<S>   <C>                                                                                  <C>
                                            PART I
  1.  BUSINESS..........................................................................      1
  2.  PROPERTIES........................................................................      8
  3.  LEGAL PROCEEDINGS.................................................................     12
  4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS...............................     12
                                            PART II
  5.  MARKET FOR THE REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS.........     12
  6.  SELECTED FINANCIAL DATA...........................................................     13
  7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF
      OPERATIONS........................................................................     14
  8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.......................................     20
  9.  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL
      DISCLOSURE........................................................................     20
                                           PART III
 10.  DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT................................     20
 11.  EXECUTIVE COMPENSATION............................................................     20
 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT....................     20
 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS....................................     20
                                            PART IV
 14.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON
      FORM 8-K..........................................................................     21
</TABLE>
 
     ALL DEFINED TERMS UNDER RULE 4-10(A) OF REGULATION S-X SHALL HAVE THEIR
STATUTORILY-PRESCRIBED MEANINGS WHEN USED IN THIS REPORT. QUANTITIES OF NATURAL
GAS ARE EXPRESSED IN THIS REPORT IN TERMS OF THOUSAND CUBIC FEET (MCF), MILLION
CUBIC FEET (MMCF) OR BILLION CUBIC FEET (BCF). OIL IS QUANTIFIED IN TERMS OF
BARRELS (BBLS), THOUSANDS OF BARRELS (MBBLS) AND MILLIONS OF BARRELS (MMBBLS).
NATURAL GAS IS COMPARED TO OIL IN TERMS OF BARRELS OF OIL EQUIVALENT (BOE) OR
MILLION BARRELS OF OIL EQUIVALENT (MMBOE). OIL AND NATURAL GAS LIQUIDS ARE
COMPARED WITH NATURAL GAS IN TERMS OF MILLION CUBIC FEET EQUIVALENT (MMCFE) AND
BILLION CUBIC FEET EQUIVALENT (BCFE). ONE BARREL OF OIL IS THE ENERGY EQUIVALENT
OF SIX MCF OF NATURAL GAS. DAILY OIL AND GAS PRODUCTION IS EXPRESSED IN TERMS OF
BARRELS OF OIL PER DAY (BOPD) AND THOUSANDS OF CUBIC FEET OF GAS PER DAY (MCFD),
RESPECTIVELY. WITH RESPECT TO INFORMATION RELATING TO THE COMPANY'S WORKING
INTEREST IN WELLS OR ACREAGE, "NET" OIL AND GAS WELLS OR ACREAGE IS DETERMINED
BY MULTIPLYING GROSS WELLS OR ACREAGE BY THE COMPANY'S WORKING INTEREST THEREIN.
UNLESS OTHERWISE SPECIFIED, ALL REFERENCES TO WELLS AND ACRES ARE GROSS.
<PAGE>   3
 
                                     PART I
 
ITEM 1. BUSINESS
 
GENERAL
 
     Apache Corporation (Apache or the Company), a Delaware corporation formed
in 1954, is an independent energy company that explores for, develops, produces,
gathers, processes and markets natural gas and crude oil. Domestically, Apache's
exploration and production interests are spread over 18 states, focusing on the
Gulf of Mexico, the Anadarko Basin of Oklahoma, the Permian Basin of West Texas
and New Mexico, the Gulf Coast and the Rocky Mountain region. Internationally,
Apache has production interests in Australia and is currently focusing its
international exploration efforts offshore Western Australia and along the
Pacific Rim. Apache's common stock has been listed on the New York Stock
Exchange since 1969.
 
     Apache holds interests in many of its domestic and international properties
through operating subsidiaries, such as MW Petroleum Corporation, Hadson Energy
Resources Corporation, Hadson Energy Limited and Apache International, Inc.
Properties referred to in this document may be held by those subsidiaries.
Apache treats all operations as one segment of business.
 
1993 RESULTS
 
     In 1993, Apache had net income of $37.3 million, or $.70 per share, on
total revenues of $466.6 million. Net cash provided by operating activities
during 1993 was $225.1 million.
 
     The year represents Apache's sixteenth consecutive year of production
growth and sixth consecutive year of oil and gas reserves growth. Apache's
average daily production was approximately 34 Mbbls of oil and 303 MMcf of
natural gas for the year. The Company's estimated proved reserves at December
31, 1993, were 231 MMboe, of which 61 percent was natural gas. Apache's growth
in reserves during the year reflects the replacement of 238 percent of the
Company's 1993 production. Over half of the newly added reserves were acquired
through Apache's ongoing acquisition efforts. The remainder was attributable to
Apache's active drilling and workover program, which yielded 210 new producing
domestic wells out of 266 attempts, and involved 368 workover and recompletion
projects during the year.
 
     At December 31, 1993, Apache had interests in approximately 3,184 net oil
and gas wells and 680,893 net developed acres of oil and gas properties. In
addition, the Company had interests in 549,833 net undeveloped acres under
domestic leases and 7,532,102 net undeveloped acres under international
exploration and production rights.
 
APACHE'S GROWTH STRATEGY
 
     Apache grows production, reserves and cash flow through a combination of
acquisitions, moderate-risk drilling and development of its inventory of
existing projects. The Company also emphasizes reducing operating costs per unit
produced and selling marginal and non-strategic properties in order to increase
its profit margins.
 
     For Apache, property acquisition is only one phase in a continuing cycle of
business growth. Apache's aim is to follow each acquisition cycle with a cycle
of reserve enhancement, property consolidation and cash flow acceleration,
facilitating asset growth and debt reduction. This approach requires
well-planned and carefully executed property development and a commitment to a
selective program of ongoing property dispositions. It motivates Apache to
target acquisitions that have ascertainable additional reserve potential and to
apply an active drilling, workover and recompletion program to realize the
potential of the acquired undeveloped and partially developed properties. Apache
prefers to operate its properties so that it can best influence their
development, and the Company therefore operates properties constituting over 75
percent of its production.
 
     Pursuing its acquire-and-develop strategy, Apache increased its total
reserves more than four-fold and production almost three-fold during the six
years ended 1993. In addition to its acquisition strategy, Apache continues to
develop and exploit its existing inventory of workover, recompletion and other
development
 
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projects to increase reserves and production. During 1993, Apache acquired
$324.6 million of additional properties and replaced over 100 percent of its
domestic production through its drilling, workover and recompletion program.
 
     Apache's international investments supplement its long-term growth
strategy. Although international exploration is recognized as higher-risk than
most of Apache's domestic activities, it offers potential for higher rewards and
significant reserve additions. Apache refocused its international efforts in
1993 on the acquisition and development of properties in Western Australia and
the Pacific Rim, where it believes that reserve additions may be made through
higher-risk exploration and through improved production practices and recovery
techniques.
 
RECENT ACQUISITIONS AND DISPOSITIONS
 
     In late 1992, Apache purchased a 93-percent working interest in
Matagorda Island Blocks 681 and 682, located off the Texas Gulf Coast, for
$57.4 million, including $1.8 million for a 14-mile gathering line. This
transaction approximately doubled Apache's offshore gas production, adding six
producing wells, and reserves of an estimated 73.5 Bcf of gas and 158 Mbbls of
condensate. Apache and an affiliate now own all of the working interest in the
blocks.
 
     In 1993, Apache entered into two agreements to purchase a combined 103.7
Bcfe of proved reserves in the Gulf of Mexico from Hall-Houston Oil Company
(Hall-Houston) for an aggregate consideration of $113.7 million. In June 1993,
Apache closed the first of the two transactions, paying $29.3 million for Hall-
Houston's interest in Mustang Island Blocks 787 and 805. Apache acquired
substantially all of Hall-Houston's other producing properties in the Gulf of
Mexico for an additional $84.4 million in the second transaction which closed on
August 31, 1993. With the Hall-Houston acquisitions, Apache again more than
doubled its interest in offshore gas production, acquiring interests in 63
producing fields and 12 fields under development or awaiting pipeline
connections.
 
     Apache acquired Hadson Energy Resources Corporation (HERC) through a series
of private transactions and subsequent merger, effective November 12, 1993. The
aggregate consideration paid for the acquisition was $98.0 million, including
the issuance of 307,977 shares of Apache common stock. Apache acquired HERC and
its subsidiaries subject to approximately $67.6 million of net liabilities at
the time of the merger. Through the acquisition of HERC, Apache added proved
reserves of 66 Bcfe domestically and 64 Bcfe in Australia.
 
     The HERC and Hall-Houston acquisitions complement Apache's existing
operations, and represent the Company's emphasis on the acquisition of natural
gas properties and an increased commitment to the Gulf of Mexico and Australian
regions. The addition of the Hall-Houston properties makes the Gulf of Mexico
the Company's largest producing region. HERC's reserves fit well with Apache's
existing interests in Oklahoma and the Carnarvon Basin offshore Western
Australia. Domestically, nearly two-thirds of the value of HERC's properties are
concentrated in Oklahoma, where Apache is already the largest independent gas
producer. HERC's operations in Western Australia, including the Harriet complex
of oil and natural gas fields, provide Apache with the reserves and
infrastructure required for the commercial development of its other Australian
interests.
 
     During 1993, Apache also acquired 11 MMboe of proved reserves through 71
smaller, non-strategic acquisitions for an aggregate consideration of $76.5
million. Apache also sold $3.3 million of its non-strategic properties during
1993.
 
EXPLORATION AND PRODUCTION
 
     The Company's domestic exploration and production activities are divided
into five operating regions, the Gulf of Mexico, Midcontinent, Permian Basin,
Gulf Coast and Rocky Mountain regions. Approximately 95 percent of the Company's
proved reserves are located in its five domestic operating regions.
Internationally, the Company conducts its Australian exploration and production
and its Indonesian exploration through its
 
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Australian region. Apache's other international interests are directed by the
Company and its subsidiaries through the Company's principal offices located in
Houston, Texas.
 
     GULF OF MEXICO. As a result of Apache's acquisitions of Matagorda Island
Blocks 681 and 682 in late 1992 and the Hall-Houston acquisition in 1993, the
Gulf of Mexico has become Apache's largest producing region. Because of the
growth resulting from these acquisitions, Apache divided its former Gulf Coast
region into two regions: Gulf of Mexico and Gulf Coast. The Gulf of Mexico
region encompasses all of Apache's interests in properties offshore Texas,
Louisiana and Alabama. As a result of acquisitions, Apache's reserves in the
region increased 77 percent during 1993. Apache increased its production in the
Gulf of Mexico to 150 MMcf of gas per day by year end, double that of a year
earlier.
 
     The Gulf of Mexico region encompasses 219,009 net acres, located in both
state and federal waters, and accounts for 47.9 MMboe, or 21 percent, of the
Company's year-end 1993 reserves. Apache participated in 23 wells which were
drilled in the region during the year, 15 of which were completed as producers.
The Company performed 11 workover and recompletion operations in the region
during 1993.
 
     MIDCONTINENT. Apache's Midcontinent region is known for its sizeable
position in the Anadarko Basin. Apache has drilled and operated in the 
Anadarko Basin for over three decades, developing an extensive database of 
geologic information and a substantial acreage position. In 1993, Apache 
enhanced its position through the acquisition of HERC, a company with 
significant acreage and producing interests in the Anadarko Basin.
 
     At December 31, 1993, Apache held an interest in 236,063 net acres in the
region, which accounted for approximately 62 MMboe, or 27 percent, of Apache's
total proved reserves. Apache participated in 101 wells which were drilled in
the Midcontinent region during the year, 91 of which were completed as producing
wells. The Company performed 26 workover and recompletion operations in the
region during 1993.
 
     PERMIAN BASIN. The Permian Basin of West Texas and New Mexico remained an
important region to Apache in 1993, generating 19 percent of the Company's
production revenues for the year. As of December 31, 1993, Apache held an
interest in 167,529 net acres in the region, which accounted for 49.1 MMboe, or
21 percent, of the Company's total proved reserves. Apache operations in the
Permian Basin focused primarily on workovers and recompletions, which totaled 76
for the year. Compared with 1992, Apache nearly doubled its drilling activity in
the region during 1993, with 14 of the 19 wells drilled in the region completed
as producers.
 
     GULF COAST. The Gulf Coast region encompasses the Texas and Louisiana
coasts and central Texas. In 1993, the region was one of the most prominent in
the Company in the number of workover and recompletion projects completed and
the number of wells drilled. Apache participated in 77 wells drilled in the Gulf
Coast region during the year, 64 of which were completed as producers, including
40 Austin Chalk wells in central Texas, 38 of which were productive. The Company
performed 140 workover and recompletion operations during 1993 in the Gulf Coast
region. The region encompasses approximately 126,485 net acres, and accounts for
33.5 MMboe, or 14 percent, of the Company's year-end 1993 total proved reserves.
 
     ROCKY MOUNTAIN. In the Rocky Mountain region, Apache currently emphasizes
oil enhancement opportunities, having conducted 115 development projects in
1993. At year-end 1993, Apache held an interest in 429,090 net acres in the
region, which accounted for approximately 26.9 MMboe, or 12 percent, of the
Company's total proved reserves. Apache participated in 46 wells in the region
during the year, 26 of which were productive.
 
     AUSTRALIA. The state of Western Australia has become an important region to
Apache following the successful completion of the HERC acquisition. For
additional operating efficiencies, Apache consolidated its Australian
properties, acquired in 1991, with HERC's operations, which are headquartered in
Perth, Western Australia, during the fourth quarter of 1993.
 
     As of December 31, 1993, Apache held 3,297,310 net developed and
undeveloped acres in Western Australia. Australian reserves accounted for 11.6
MMboe, or five percent, of the Company's total proved reserves at year end.
Through HERC and its subsidiaries, Apache also owns a 22.5-percent interest in
and
 
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operates the Harriet Gas Gathering Project, a gas processing and compression
facility with a throughput capacity of 80 MMcfd, and a 60-mile, 12-inch offshore
pipeline with a throughput capacity of 175 MMcfd. The facilities are located in
close proximity to HERC's producing properties offshore in the Carnarvon Basin.
HERC acts as operator for most of its properties in Western Australia through
its Australian subsidiary, Hadson Energy Limited.
 
     During 1993, Apache's international subsidiary, Apache International, Inc.,
focused primarily on exploratory drilling in Western Australia, participating in
three wells for the year, two of which were productive. Although the wells
indicated the presence of a new natural gas and gas condensate field, the
economic potential of the field cannot be determined until completion of a
feasibility study currently in progress.
 
     OTHER INTERNATIONAL OPERATIONS. Outside of Australia, Apache's
international interests currently consist only of exploration interests. In
1993, Apache continued to emphasize activities in Indonesia, expanded into
Egypt, and continued to reduce its focus on France, Angola, and The Congo, while
retaining an interest in the Foxtrot project offshore the Ivory Coast.
 
     In early 1993, Apache took over as operator and increased its interest in
the Java Sea IV block offshore Indonesia and the Padang Panjang block on the
island of Sumatra, Indonesia. Following the HERC merger, operations for both 
blocks were consolidated with those for the Bentu block on Sumatra which are 
conducted by a subsidiary of HERC. Three exploratory wells are expected to be 
drilled in Indonesia in 1994.
 
     In May 1993, Apache acquired a 50-percent interest in the two-million acre
Qarun block in the western desert of Egypt which is operated by Phoenix
Resources Company of Qarun. The acquisition of seismic data has concluded and an
exploratory well is scheduled to be drilled in 1994.
 
     In January 1994, Apache entered into an agreement with XCL-China, Ltd., a
subsidiary of The Exploration Company of Louisiana, to acquire a one-third
interest in the Zhao Dong block located in the Bohai Bay shallow water area
offshore the People's Republic of China. The contract area contains
approximately 48,670 undeveloped acres (16,200 acres net to Apache) and involves
a work commitment to acquire new seismic data and drill three exploratory wells
during the exploratory phase which began in May 1993. Under the contract, the
first exploratory well must be spudded within 15 months of May 1993 and is
planned for the second quarter of 1994.
 
OIL AND NATURAL GAS MARKETING
 
     Apache markets approximately 85 percent of its domestic natural gas on the
spot market through Natural Gas Clearinghouse (NGC) or through market responsive
contracts with other parties; the remaining 15 percent is sold into long-term,
premium-priced contracts. Sales to NGC accounted for 36 percent of the Company's
oil and gas revenues in 1993. Effective April 1, 1993, Apache and NGC agreed to
extend the term of their existing natural gas marketing agreement under which
NGC will continue to market substantially all of Apache's domestic spot market
gas production. The Company believes that if the NGC contract were terminated,
it would not have a material adverse effect on the Company due to the existence
of alternative purchasers.
 
     In 1992, Apache assumed its own domestic crude oil marketing operations.
Most of Apache's crude oil production is sold through lease-level marketing to
refiners, traders and transporters, generally under 30-day contracts that renew
automatically until canceled. Although effective January 1, 1993, Apache ended
its prior arrangement to sell to Amoco Production Company (Amoco) substantially
all of the oil produced from the MW Petroleum Corporation (MW) properties, sales
to Amoco constituted 11-percent of the Company's oil and gas revenues during the
year. Oil production from the MW properties is now marketed through Apache's
internal crude oil marketing group.
 
     In Australia, HERC's existing proved gas reserves are dedicated to the
State Energy Commission of Western Australia (SECWA) under a long-term contract
that provides for the sale of 123 Bcf (approximately 28 Bcf net to HERC) over an
initial period of up to 10 years. The agreement contains take-or-pay provisions
that require SECWA to purchase a minimum of 26 MMcfd (approximately 6 MMcfd net
to HERC) through
 
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July 1994, and 35 MMcfd through the remainder of the contract term at a stated
minimum price that escalates with the Western Australia consumer price index. If
for any reason the SECWA contract were canceled, HERC might not be able to find
other markets for its Carnarvon Basin gas.
 
     HERC markets all oil and natural gas liquids produced from its interests in
the Harriet field through a contract with Marubeni International Petroleum
(Singapore) Pte Limited (Marubeni), which was extended in 1993. Pricing under
the contract represents a fixed premium to the average of the quoted spot market
prices of Tapis and Dubai crude oil, with payment made in U.S. dollars.
Production sold under this contract in 1993 realized an average price of $18.53
per barrel (exclusive of the impact of hedging activities). The Company believes
that if this contract were terminated, it would not have a material adverse
effect on the Company due to the demand for Australian crude oil and the
existence of alternative purchasers.
 
OIL AND NATURAL GAS PRICES
 
     Natural gas prices remained volatile and continued to behave independently
of historical seasonal patterns in 1993. Until recently, demand for natural gas
has tended to be seasonal in nature, with peak demand and higher prices
occurring in the colder winter months. In 1992, this linkage was lost: after
plummeting to a 13-year low near the peak of the winter heating season, prices
defied normal summer and fall seasonal patterns, climbing to a seven-year high.
Although natural gas prices remained volatile in 1993, Apache's average realized
gas price of $2.03 per Mcf for the year was 15 percent above the prior-year
average of $1.76 per Mcf.
 
     Due to the escalating price contract with SECWA, HERC's natural gas
production in Western Australia is not subject to the same degree of price
volatility as is its domestic gas production, however, natural gas sales under
the SECWA contract represented only about two percent of the Company's total
natural gas sales at year end. In 1993, the price received for production under
the contract averaged $1.79 per Mcf.
 
     Oil prices, especially vulnerable to unpredictable political and economic
forces, remained volatile in 1993 and declined steeply in the fourth quarter of
1993. Management believes that, absent a comprehensive U.S. energy policy, oil
prices will continue to fluctuate in response to changes in the policies of the
Organization of Petroleum Exporting Countries (OPEC) and events in the Middle
East. Although levels of production maintained by OPEC member countries and
other major oil producing countries continue to impede crude oil price
improvements in the near term, management is unable to determine whether the
sharply lower oil prices prevailing in the fourth quarter of 1993 will be a
relatively short-term experience or if such prices represent a longer-term shift
in the crude oil market.
 
     Apache's worldwide crude oil price averaged $16.78 per barrel in 1993,
eight percent lower than the average price of $18.16 per bbl in 1992. Apache's
average crude oil price for its Australian production, including production sold
under the Marubeni contract, was $19.24 per barrel in 1993.
 
     Terms of the acquisition of MW from Amoco included a crude oil price
support mechanism that expired in mid-1993 and that buffered the Company from
price volatility during the peak debt exposure from the acquisition financing.
The transaction also created an oil and gas price sharing provision under which
certain price sharing payments are due to Amoco. Pursuant to this provision, to
the extent that oil prices exceed specified reference prices that rise to $33.13
per barrel over the eight-year period ending June 30, 1999, and to the extent
that gas prices exceed specified reference prices that rise to $2.68 per Mcf
over the five-year period ending June 30, 1996, Apache will share the excess
price realization with Amoco on a portion of the MW production.
 
     From time to time, Apache buys or sells contracts for the future delivery
of oil or gas to hedge a limited portion of its production against exposure to
spot market price changes. See Note 8 to the Company's financial statements
under Item 8 below.
 
     The Company's business will be affected by future worldwide changes in oil
and gas prices and the relationship between the prices of oil and gas. No
assurance can be given as to the trend in, or level of, future oil and gas
prices.
 
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RESERVE VALUE CEILING TEST
 
     Under the Securities and Exchange Commission's full cost accounting rules,
the Company reviews the carrying value of its oil and gas properties each
quarter on a country-by-country basis. Under full cost accounting rules,
capitalized costs of oil and gas properties may not exceed the present value of
estimated future net revenues from proved reserves, discounted at 10 percent,
plus the lower of cost or fair market value of unproved properties, as adjusted
for related tax effects and deferred tax reserves. Application of this rule
generally requires pricing future production at the unescalated oil and gas
prices in effect at the end of each fiscal quarter and requires a write-down if
the "ceiling" is exceeded, even if prices declined for only a short period of
time. If a write-down is required, the one-time charge to earnings would not
impact cash flow from operating activities. The Company had no write-downs
because of ceiling test limitations during 1993.
 
GOVERNMENT REGULATION OF THE OIL AND GAS INDUSTRY
 
     The Company's exploration, production and marketing operations are
regulated extensively at the federal, state and local levels, as well as by
other countries in which the Company does business. Oil and gas exploration,
development and production activities are subject to various laws and
regulations governing a wide variety of matters. For example,
hydrocarbon-producing states have statutes or regulations addressing
conservation practices and the protection of correlative rights, and such
regulations may affect Apache's operations and limit the quantity of
hydrocarbons Apache may produce and sell. Other regulated matters include
marketing, pricing, transportation, and valuation of royalty payments.
 
     Among other regulated matters on the federal level, the Federal Energy
Regulatory Commission (FERC) regulates interstate transportation of natural gas
under the Natural Gas Act and regulates the maximum selling prices of certain
categories of gas sold in "first sales" in interstate and intrastate commerce
under the Natural Gas Policy Act (NGPA). Apache, as a producer and seller of
gas, remains subject to FERC's jurisdiction only to a limited extent as a result
of a few remaining regulated gas sales. Apache's other gas sales are deregulated
under the NGPA or Natural Gas Wellhead Decontrol Act.
 
     Apache's gas sales are affected by regulation of intrastate and interstate
gas transportation. In an attempt to promote competition, the FERC has issued a
series of orders which have altered significantly the marketing and
transportation of natural gas. The effect of these orders has been to enable the
Company to market its natural gas production to purchasers other than the
interstate pipelines located in the vicinity of its producing properties. The
Company is not able to fully determine what impact the new regulations will have
on its operations, but it generally believes that the changes will improve the
Company's access to transportation and enhance the marketability of its natural
gas production. To date, Apache has not experienced any material adverse effect
on gas marketing as a result of these FERC orders; however, the Company cannot
predict what new regulations may be adopted by the FERC and other regulatory
authorities, or what effect subsequent regulations may have on its future gas
marketing.
 
ENVIRONMENTAL MATTERS
 
     Apache, as an owner or lessee and operator of oil and gas properties, is
subject to various federal, state, local and foreign country laws and
regulations relating to discharge of materials into, and protection of, the
environment. These laws and regulations may, among other things, impose
liability on the lessee under an oil and gas lease for the cost of pollution
clean-up resulting from operations, subject the lessee to liability for
pollution damages, require suspension or cessation of operations in affected
areas and impose restrictions on the injection of liquids into subsurface
aquifers that may contaminate groundwater.
 
     Apache maintains insurance coverages which it believes are customary in the
industry, although it is not fully insured against all environmental risks. The
Company is not aware of any environmental claims existing as of December 31,
1993, which would have a material impact upon the Company's financial position
or results of operations.
 
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<PAGE>   9
 
     Apache has made and will continue to make expenditures in its efforts to
comply with these requirements, which it believes are necessary business costs
in the oil and gas industry. Apache has established policies for continuing
compliance with environmental laws and regulations, including regulations
applicable to its operations in Australia and other countries. Apache has also
established operational procedures designed to limit the environmental impact of
its field facilities. The costs incurred by these policies and procedures are
inextricably connected to normal operating expenses such that the Company is
unable to separate the expenses related to environmental matters; however, the
Company does not believe any such additional expenses are material to its
financial position or results of operations.
 
     Although environmental requirements do have a substantial impact upon the
energy industry, generally these requirements do not appear to affect Apache any
differently, or to any greater or lesser extent, than other companies in the
industry. Apache does not believe that compliance with federal, state, local or
foreign country provisions regulating the discharge of materials into the
environment, or otherwise relating to the protection of the environment, will
have a material adverse effect upon the capital expenditures, earnings or
competitive position of the Company or its subsidiaries, but there is no
assurance that changes in or additions to laws or regulations regarding the
protection of the environment will not have such an impact.
 
COMPETITION
 
     The oil and gas industry is highly competitive. Because oil and gas are
fungible commodities, the principal form of competition with respect to product
sales is price competition. Apache strives to maintain the lowest finding and
production costs possible to maximize profits.
 
     As an independent oil and gas company, Apache frequently competes for
reserve acquisitions, exploration leases, licenses, concessions and marketing
agreements against companies with substantially larger financial and other
resources than Apache possesses. Moreover, many competitors have established
strategic long-term positions and maintain strong governmental relationships in
countries in which the Company may seek new entry. Apache expects this high
degree of competition to continue.
 
EMPLOYEES
 
     On December 31, 1993, Apache had 984 full-time employees.
 
OFFICES
 
     Apache's principal executive office is located at One Post Oak Central,
2000 Post Oak Boulevard, Suite 100, Houston, Texas 77056-4400. The Company
maintains regional exploration and production offices in Tulsa, Oklahoma;
Houston, Texas; Denver, Colorado; and Perth, Western Australia.
 
                                        7
<PAGE>   10
 
ITEM 2. PROPERTIES
 
OIL AND GAS EXPLORATION AND PRODUCTION PROPERTIES AND RESERVES
 
ACREAGE
 
     The developed and undeveloped acreage, including both domestic leases and
international production and exploration rights that Apache held as of December
31, 1993, are as follows:
 
<TABLE>
<CAPTION>
                                                 UNDEVELOPED ACREAGE          DEVELOPED ACREAGE
                                               ------------------------     ---------------------
                                                 GROSS           NET          GROSS         NET
                                                 ACRES          ACRES         ACRES        ACRES
                                               ----------     ---------     ---------     -------
<S>                                            <C>            <C>           <C>           <C>
GULF OF MEXICO
  Alabama....................................          --            --        37,469       7,704
  Louisiana..................................      45,095        26,739       278,678      81,263
  Texas......................................      86,463        41,808       233,934      61,495
                                               ----------     ---------     ---------     -------
  Total......................................     131,558        68,547       550,081     150,462
                                               ----------     ---------     ---------     -------
MIDCONTINENT
  Arkansas...................................          40            10         2,549           9
  Louisiana..................................       1,711         1,126        14,648      10,681
  Oklahoma...................................      56,376        20,182       424,260     158,389
  Texas......................................      24,808        13,401        54,031      32,265
                                               ----------     ---------     ---------     -------
  Total......................................      82,935        34,719       495,488     201,344
                                               ----------     ---------     ---------     -------
PERMIAN BASIN
  New Mexico.................................      14,830         7,188        78,175      25,278
  Texas......................................     103,584        53,601       104,039      81,462
                                               ----------     ---------     ---------     -------
  Total......................................     118,414        60,789       182,214     106,740
                                               ----------     ---------     ---------     -------
GULF COAST
  Alabama....................................         780           167           483         204
  Florida....................................       1,810           240            --          --
  Louisiana..................................      10,759         6,656        49,658      21,059
  Mississippi................................       7,470         1,324         9,945       1,992
  New Mexico.................................         640           640         3,632       1,510
  Texas......................................      47,925        21,229       189,441      71,464
                                               ----------     ---------     ---------     -------
  Total......................................      69,384        30,256       253,159      96,229
                                               ----------     ---------     ---------     -------
ROCKY MOUNTAIN
  California.................................         968           575           480         178
  Colorado...................................      48,619        22,127         1,040         920
  Kansas.....................................      14,515         5,351           750         713
  Michigan...................................         160            22            40           6
  Montana....................................      46,539        19,286         6,064       2,350
  Nebraska...................................      11,699         4,787            80          10
  Nevada.....................................     145,099        64,979         1,720         913
  New Mexico.................................      72,391        47,527        34,671      27,037
  North Dakota...............................     155,443        62,613        53,890      21,784
  South Dakota...............................       4,639         1,196         3,480       2,330
  Utah.......................................       6,997         1,763         1,680       1,018
  Wyoming....................................     276,990       125,296        31,101      16,309
                                               ----------     ---------     ---------     -------
  Total......................................     784,059       355,522       134,996      73,568
                                               ----------     ---------     ---------     -------
TOTAL DOMESTIC...............................   1,186,350       549,833     1,615,938     628,343
                                               ----------     ---------     ---------     -------
INTERNATIONAL
  Australia..................................   6,613,500     3,244,760       280,460      52,550
  The Congo..................................     236,228        47,245            --          --
  Indonesia..................................   5,250,258     3,276,407            --          --
  Egypt......................................   1,927,380       963,690            --          --
                                               ----------     ---------     ---------     -------
TOTAL INTERNATIONAL..........................  14,027,366     7,532,102       280,460      52,550
                                               ----------     ---------     ---------     -------
TOTAL COMPANY................................  15,213,716     8,081,935     1,896,398     680,893
                                               ----------     ---------     ---------     -------
                                               ----------     ---------     ---------     -------
</TABLE>
 
                                        8
<PAGE>   11
 
PRODUCTIVE OIL AND GAS WELLS
 
     The number of productive oil and gas wells, operated and non-operated, in
which Apache had an interest as of December 31, 1993, is set forth below.
 
<TABLE>
<CAPTION>
                                                             GAS                       OIL
                                                      -----------------         -----------------
                                                      GROSS        NET          GROSS        NET
                                                      -----       -----         -----       -----
<S>                                                   <C>         <C>           <C>         <C>
Gulf of Mexico......................................    430          85            40          14
Midcontinent........................................  1,511         447           275          82
Permian Basin.......................................    455         131         2,240         782
Gulf Coast..........................................    626         289         1,088         832
Rocky Mountain......................................    113          83           782         434
International.......................................      5           1            25           4
                                                      -----       -----         -----       -----
Total...............................................  3,140       1,036         4,450       2,148
                                                      =====       =====         =====       =====
</TABLE>
 
GROSS WELLS DRILLED
 
     The following table sets forth the number of gross exploratory and gross
development wells drilled in the last three fiscal years in which the Company
participated. The number of wells drilled refers to the number of wells
commenced at any time during the respective fiscal year. "Productive" wells are
either producing wells or wells capable of commercial production. At December
31, 1993, the Company was participating in 26 wells in the process of drilling.
 
<TABLE>
<CAPTION>
                                                   EXPLORATORY                      DEVELOPMENTAL
                                          -----------------------------     -----------------------------
1993                                      PRODUCTIVE     DRY      TOTAL     PRODUCTIVE     DRY      TOTAL
- ----------------------------------------  ----------     ----     -----     ----------     ----     -----
<S>                                            <C>         <C>     <C>          <C>          <C>      <C>
Domestic................................       12          19       31          198          37       235
International...........................        3           5        8           --          --        --
                                              ---        ----     -----       -----        ----     -----
Total...................................       15          24       39          198          37       235
                                              ===        ===       ===        =====        ====     =====
1992
- ----------------------------------------
Domestic................................       10          32       42          145          16       161
International...........................       --           6        6           --          --        --
                                              ---        ----     -----       -----        ----     -----
Total...................................       10          38       48          145          16       161
                                              ===        ===       ===        =====        ====     =====
1991
- ----------------------------------------
Domestic................................       18          11       29           73          18        91
International...........................        1           1        2            2          --         2
                                              ---        ----     -----       -----        ----     -----
Total...................................       19          12       31           75          18        93
                                              ===        ===       ===        =====        ====     =====
</TABLE>
 
NET WELLS DRILLED
 
     The following table sets forth, for each of the last three fiscal years,
the number of net exploratory and net developmental wells drilled by Apache.
 
<TABLE>
<CAPTION>
                                                   EXPLORATORY                      DEVELOPMENTAL
                                          -----------------------------     -----------------------------
1993                                      PRODUCTIVE     DRY      TOTAL     PRODUCTIVE     DRY      TOTAL
- ----------------------------------------  ----------     ----     -----     ----------     ----     -----
<S>                                           <C>        <C>      <C>          <C>         <C>      <C>
Domestic................................      4.2        10.4     14.6         90.4        22.2     112.6
International...........................      0.6         1.3      1.9           --          --        --
                                              ---        ----     -----       -----        ----     -----
Total...................................      4.8        11.7     16.5         90.4        22.2     112.6
                                              ===        ===       ===        =====        ====     =====   
1992
- ----------------------------------------
Domestic................................      3.2        16.6     19.8         60.1         8.0      68.1
International...........................       --         1.1      1.1           --          --        --
                                              ---        ----     -----       -----        ----     -----
Total...................................      3.2        17.7     20.9         60.1         8.0      68.1
                                              ===        ===       ===        =====        ====     =====   
</TABLE>
                                         9
<PAGE>   12
 
<TABLE>
<CAPTION>
                                                   EXPLORATORY                      DEVELOPMENTAL
                                          -----------------------------     -----------------------------
1991                                      PRODUCTIVE     DRY      TOTAL     PRODUCTIVE     DRY      TOTAL
- ----------------------------------------  ----------     ----     -----     ----------     ----     -----
<S>                                           <C>         <C>     <C>          <C>         <C>       <C>
Domestic................................      9.3         7.5     16.8         32.0        10.1      42.1
International...........................      0.1         0.2      0.3          0.2          --       0.2
                                              ---        ----    -----        -----        ----     -----
Total...................................      9.4         7.7     17.1         32.2        10.1      42.3
                                             ====        ====    =====        =====        ====     =====
</TABLE>
 
PRODUCTION AND PRICING DATA
 
     The following table describes, for each of the last three fiscal years,
oil, natural gas liquids (NGLs) and gas production for the Company, average
production costs and average sales prices.
 
<TABLE>
<CAPTION>
                                         PRODUCTION                                        AVERAGE SALES PRICE
                                ----------------------------        AVG.        -----------------------------------------
 YEAR ENDED                      OIL       NGLS        GAS       PRODUCTION          OIL            NGLS          GAS
DECEMBER 31,                    (MBBLS)   (MBBLS)    (MMCF)     COST PER BOE      (PER BBL)       (PER BBL)     (PER MCF)
- ------------                    ------    -------    -------    ------------    ------------    ------------    ---------
   <S>                          <C>         <C>      <C>           <C>             <C>             <C>            <C>
   1993........................ 12,294      486      110,622       $ 4.10          $   16.78       $   12.35      $2.03
   1992........................ 12,056      533       95,982         4.38              18.16           12.34       1.76
   1991........................  7,764      630      104,621         3.54              18.40           11.23       1.58
</TABLE>
 
ESTIMATED RESERVES AND RESERVE VALUE INFORMATION
 
     The following information relating to estimated reserve quantities, reserve
values and discounted future net revenues is derived from, and qualified in its
entirety by reference to, the more complete reserve and revenue information and
assumptions included in the Company's financial statements under Item 8 below.
The Company's estimates of proved reserve quantities of its domestic properties
and certain international properties have been subject to review by Ryder Scott
Company Petroleum Engineers. The Company's estimates of proved reserve
quantities of its Western Australia properties held through Hadson Energy
Limited have been subject to review by Intera Information Technologies Inc.
There are numerous uncertainties inherent in estimating quantities of proved
reserves and projecting future rates of production and timing of development
expenditures. The following reserve information represents estimates only and
should not be construed as being exact. See Supplemental Oil and Gas Disclosures
under Item 8 below.
 
     The following table sets forth the Company's estimated proved developed and
undeveloped reserves as of December 31, 1993, 1992 and 1991.
 
<TABLE>
<CAPTION>
                                                                             OIL, NGLS AND
                                                           NATURAL GAS        CONDENSATE
         1993                                                 (BCF)            (MMBBLS)
        -------------------------------------------------  -----------       -------------
        <S>                                                   <C>                 <C>
        Developed........................................     720.7               79.4
        Undeveloped......................................     127.5               10.3
                                                              -----               ----
        Total............................................     848.2               89.7
                                                              =====               ====
        1992
        -------------------------------------------------
        Developed........................................     585.4               73.1
        Undeveloped......................................      57.9                7.6
                                                              -----               ---- 
        Total............................................     643.3               80.7
                                                              =====               ==== 
        1991
        -------------------------------------------------
        Developed........................................     549.7               69.2
        Undeveloped......................................      52.3               10.6
                                                              -----               ---- 
        Total............................................     602.0               79.8
                                                              =====               ==== 
</TABLE>
 
                                       10
<PAGE>   13
 
     The following table sets forth the estimated future value of all proved
reserves of the Company, and proved developed reserves of the Company, as of
December 31, 1993, 1992 and 1991. Future reserve values are based on year-end
prices except in those instances where the sale of gas and oil is covered by
contract terms providing for determinable escalations. Operating costs,
production and ad valorem taxes, and future development costs are based on
current costs with no escalations.
 
<TABLE>
<CAPTION>
                                                                         PRESENT VALUE OF
                                                                             ESTIMATED
                                                                        FUTURE NET REVENUES
                                                                        BEFORE INCOME TAXES
                                           ESTIMATED FUTURE              (DISCOUNTED AT 10
                                             NET REVENUES                    PERCENT)
                                       -------------------------     -------------------------
                                                        PROVED                        PROVED
DECEMBER 31,                             PROVED       DEVELOPED        PROVED       DEVELOPED
- ------------                           ----------     ----------     ----------     ----------
                                                           (IN THOUSANDS)       
   <S>                                 <C>            <C>            <C>            <C>    
                                                           
   1993..............................  $2,074,505     $1,783,187     $1,359,117     $1,189,268
   1992..............................   1,747,113      1,581,853      1,062,558        987,497
   1991..............................   1,611,044      1,447,025        997,973        930,038
</TABLE>
 
     At December 31, 1993, estimated future net revenues expected to be received
from all proved reserves of the Company, and from proved developed reserves of
the Company, were as follows:
 
<TABLE>
<CAPTION>
                                                                                  PROVED
DECEMBER 31,                                                       PROVED        DEVELOPED
- ------------                                                     -----------    -----------
                                                                       (IN THOUSANDS)      
   <S>                                                           <C>            <C>
                                                                       
   1994......................................................    $   321,507    $   332,722
   1995......................................................        312,749        258,091
   1996......................................................        258,554        206,130
   Thereafter................................................      1,181,695        986,244
                                                                 -----------    -----------
   Total.....................................................    $ 2,074,505    $ 1,783,187
                                                                 ===========    ===========
</TABLE>
 
     The Company believes that no major discovery or other favorable or adverse
event has occurred since December 31, 1993, which would cause a significant
change in the estimated proved reserves reported herein. The estimates above are
based on year-end pricing in accordance with the Securities and Exchange
Commission (Commission) guidelines and do not reflect current prices. Since
January 1, 1993, no oil or gas reserve information has been filed with, or
included in any report to, any U.S. authority or agency other than the
Commission and the Energy Information Administration (EIA). The basis of
reporting reserves to the EIA for the Company's reserves is identical to that
set forth in the foregoing table.
 
TITLE TO INTERESTS
 
     The Company believes that its title to the various interests set forth
above is satisfactory and consistent with the standards generally accepted in
the oil and gas industry, subject only to immaterial exceptions which do not
detract substantially from the value of the interests or materially interfere
with their use in the Company's operations. The interests owned by the Company
may be subject to one or more royalty, overriding royalty and other outstanding
interests customary in the industry. The interests may additionally be subject
to burdens such as net profits interests, liens incident to operating agreements
and current taxes, development obligations under oil and gas leases and other
encumbrances, easements and restrictions, none of which detract substantially
from the value of the interests or materially interfere with their use in the
Company's operations.
 
                                       11
<PAGE>   14
 
ITEM 3. LEGAL PROCEEDINGS
 
     The information set forth under the caption "Litigation" in Note 8 to the
Company's financial statements under Item 8 below is incorporated herein by
reference.
 
ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS
 
     No matters were submitted for a vote of security holders during the fourth
quarter of 1993.
 
                                    PART II
 
ITEM 5. MARKET FOR THE REGISTRANT'S COMMON EQUITY AND RELATED
        STOCKHOLDER MATTERS
 
     Apache common stock, par value $1.25 per share, is traded on the New York
Stock Exchange and the Chicago Stock Exchange under the symbol APA. The table
below provides certain information regarding Apache common stock for 1993 and
1992. Prices shown are from the New York Stock Exchange Composite Transactions
Reporting System.
 
<TABLE>
<CAPTION>
                                                        1993                          1992
                                               --------------------------       -------------------------
                                                PRICE RANGE                       PRICE RANGE
                                               --------------   DIVIDENDS         -----------         DIVIDENDS
                                               HIGH       LOW    PER SHARE       HIGH      LOW      PER SHARE
                                               ----       ----   ---------       ----      ----     ---------
<S>                                           <C>       <C>       <C>         <C>        <C>        <C>
First Quarter...............................  $26 1/4   $17 5/8   $0.07       $15 7/8    $ 12       $0.07
Second Quarter..............................   30 1/4    24 3/8    0.07        18 1/8      13 7/8    0.07
Third Quarter...............................   33 1/2    26 3/8    0.07        22 1/8      15 1/2    0.07
Fourth Quarter..............................   31 1/4    20 3/8    0.07        21 3/8      17 1/8    0.07
</TABLE>
 
     The closing price per share of Apache common stock as reported on the New
York Stock Exchange Composite Transactions Reporting System for March 17, 1994,
was $26 1/8. At December 31, 1993, there were 61,085,414 shares of Apache common
stock outstanding, held by 10,970 shareholders of record and approximately
30,000 beneficial owners.
 
     Each share of Apache common stock also represents one common stock purchase
right which, under certain circumstances, would entitle the holder to acquire
additional shares of common stock. See Note 5 to the Company's financial
statements under Item 8 below.
 
     The Company has paid cash dividends on its common stock for 108 consecutive
quarters and intends to continue the payment of dividends at current levels,
although future dividend payments will depend upon the Company's level of
earnings, financial requirements and other relevant factors.
 
                                       12
<PAGE>   15
 
ITEM 6. SELECTED FINANCIAL DATA
 
     The following table sets forth selected financial data of the Company and
its consolidated subsidiaries for each of the years in the five-year period
ended December 31, 1993, which information has been derived from the Company's
audited financial statements. This information should be read in connection with
and is qualified in its entirety by the more detailed information and financial
statements under Item 8 below.
 
<TABLE>
<CAPTION>
                                                  AT OR FOR THE YEAR ENDED DECEMBER 31,
                                      --------------------------------------------------------------
                                       1993(1)         1992        1991(2)        1990        1989
                                      ----------    ----------    ----------    --------    --------
                                                 (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
<S>                                   <C>           <C>           <C>           <C>         <C>
INCOME STATEMENT DATA
Total revenues....................... $  466,638    $  454,300    $  356,930    $273,410    $246,850
Net income...........................     37,334        47,776        34,615      40,297      22,122
Net income per common share..........        .70          1.02           .76         .90         .64
Cash dividends per common share......        .28           .28           .28         .28         .28
BALANCE SHEET DATA
Working capital (deficit)............ $  (62,450)   $  (43,775)   $  (55,023)   $ 15,678    $ 24,585
Total assets.........................  1,592,407     1,218,704     1,209,291     829,634     764,368
Long-term debt.......................    453,009       454,373       490,988     194,781     195,622
Shareholders' equity.................    785,854       475,209       439,941     386,780     350,263
Common shares outstanding at end of
  year...............................     61,085        46,936        46,855      44,694      43,949
</TABLE>
 
- ---------------
 
(1)  Includes financial data for HERC after June 30, 1993, and for Hall-Houston
     after July 31, 1993. See Note 1 to the Company's financial statements under
     Item 8 below.
 
(2)  Includes financial data for MW after June 30, 1991. See Note 1 to the
     Company's financial statements under Item 8 below.
 
     Reference is made to Item 7, "MANAGEMENT'S DISCUSSION AND ANALYSIS OF
FINANCIAL CONDITION AND RESULTS OF OPERATIONS," for a discussion of significant
acquisitions and to the Summary of Significant Accounting Policies and Notes 1
and 2 to the Company's financial statements under Item 8 below.
 
                                       13
<PAGE>   16
 
ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION
        AND RESULTS OF OPERATIONS
 
OVERVIEW
 
     Apache's financial performance during 1993 is best understood in light of
the following factors:
 
     GAIN FROM SALE IN PRIOR YEAR -- The Company's 1992 income reflects an $18.5
million after-tax gain on the sale of the Company's interest in NGC and $2.7
million attributable to the Company's equity in NGC's earnings.
 
     NON-CASH CHARGES -- With a reduced probability of establishing commercial
operations on certain West African concessions, Apache took a $6.7 million
third-quarter write-down that reduced net income by $4.3 million, or $.08 per
share. Due to the third quarter enactment of tax legislation increasing the
federal corporate income tax rate, Apache also took a $3.5 million third-quarter
charge to income in restating deferred taxes as required under Statement of
Financial Accounting Standards No. 109. The one-time charge reduced net income
by $.07 per share.
 
     COMMODITY PRICES -- As compared to 1992, the current year's performance
benefitted from generally higher natural gas prices but suffered from a steep
decline in oil prices during the fourth quarter. Although natural gas prices
remained volatile and continued to deviate from seasonal patterns, Apache's
average realized natural gas price for 1993 was up 15 percent over 1992.
Improved gas prices were significantly offset by a downturn in oil prices in the
fourth quarter, which caused Apache's 1993 average realized oil price to decline
to a five-year low of $16.78 per barrel.
 
     PUBLIC STOCK OFFERING; DEBT CONVERSION -- In March 1993, the Company
received net proceeds of $131.8 million from its public offering of
approximately 5.8 million shares of Apache common stock, and applied proceeds to
repay all outstanding debt under its revolving bank credit facility. In
September 1993, holders converted approximately $150 million of Apache's
7 1/2-percent convertible subordinated debentures due 2000 into approximately
7.8 million shares of Apache common stock. These transactions increased the
weighted average shares of Apache common stock outstanding during the year by
6.6 million shares and reduced outstanding debt by $281.8 million, with a
corresponding reduction in interest expense. This debt reduction was offset,
however, by bank debt incurred to fund acquisitions during 1993.
 
     ACQUISITIONS -- In 1993, Apache acquired HERC and substantially all of
Hall-Houston's producing properties in the Gulf of Mexico for an aggregate of
$211.7 million. Although the impact of these acquisitions on 1993 performance
was not as dramatic as the impact of the MW acquisition on 1992's performance,
the production, expenses and cash flow from the newly acquired properties
nonetheless contributed significantly to the year's outcome, combining to add
approximately $34 million to 1993 revenue. In addition, the Company's 1993
performance reflects a full 12 months of ownership of Apache's 93-percent
working interest in Matagorda Island Blocks 681 and 682 in the Gulf of Mexico
acquired from Shell Offshore Inc. during the fourth quarter of 1992.
 
RESULTS OF OPERATIONS
 
NET INCOME AND REVENUES
 
     The Company reported net income for the year of $37.3 million, or $.70 per
share, a 22-percent decrease from 1992 earnings of $47.8 million, or $1.02 per
share. Significant factors contributing to the lower earnings were after-tax
charges to earnings of $7.8 million, or $.15 per share, taken in the third
quarter related to international impairments and changes in tax laws, the
decline in the Company's realized oil prices during 1993, and the gain
recognized during 1992 on the sale of NGC. Excluding only the gain on the 1992
NGC sale, the Company's 1993 earnings increased 28 percent over 1992.
 
     Revenues for 1993 totaled $466.6 million, or three percent higher than a
year ago. Production revenues in 1993 totaled $437.3 million compared to $394.6
million in 1992. Oil and gas revenues were influenced by improved gas prices
over 1992, declining second-half oil prices, and the acquisition of HERC and the
Hall-
 
                                       14
<PAGE>   17
 
Houston properties in the second half of the year. Revenues from international
operations increased 93 percent to $15.5 million with six months of Australian
production from the HERC acquisition.
 
     Natural gas sales contributed $225 million to revenues, up 33 percent from
1992, the result of sustained higher prices and higher production during 1993.
During 1992, Apache's average realized gas price ranged from $1.17 per Mcf in
February, the lowest price in 13 years, to a high of $2.40 per Mcf in October.
Apache's average realized price for 1992 was $1.76 per Mcf. In 1993, prices
remained in the higher range established in the latter half of 1992. Apache's
average realized price for 1993 was $2.03 per Mcf, up 15 percent over the 1992
average, positively affecting 1993 gas sales by $30.4 million.
 
     The impact of higher gas prices was augmented by higher gas production in
1993 as compared with 1992. Gas production for the year averaged 303.1 MMcf per
day, up 16 percent from 1992, positively affecting gas sales by $25.8 million.
This increase is principally the result of production from newly acquired
properties, the most significant of which were the offshore properties acquired
from Hall-Houston, the additional 93-percent working interest in Matagorda
Island Blocks 681 and 682 acquired in 1992, and the properties acquired in the
merger with HERC. Combined, these three acquisitions comprised 332 Bcfe of
proved reserves at year end and contributed 68 MMcf of gas per day to Apache's
1993 average daily production.
 
     The impact of increased oil production was offset by lower oil prices in
1993. Oil production contributed $206.3 million to revenues during 1993, six
percent below Apache's record $218.9 million in oil sales in 1992. Average daily
oil production of approximately 33.7 Mbbls barrels of oil increased two percent
over the prior year, positively affecting oil sales by $4.3 million, as
acquisitions, continuing workover and recompletion operations, and new drilling
in the Permian Basin and along the Austin Chalk trend offset the effects of
natural depletion. The Company's average realized oil price of $16.78 per barrel
declined eight percent from 1992, negatively affecting oil sales by $16.9
million. Oil sales represented 47 percent of total oil and gas sales in 1993
compared to 55 percent of total oil and gas sales in 1992.
 
     Revenues from the sale of natural gas liquids and sulfur declined 12
percent from 1992 to $6.0 million, a result of lower prices for natural gas
liquids and the sale of the Whitney Canyon gas processing plant in 1992. The
sale of natural gas liquids declined from 1.5 Mbbls per day in 1992 to 1.3 Mbbls
per day in 1993.
 
     Revenues from gas gathering, processing and marketing were $25.9 million in
1993, down 10 percent from 1992. The decline primarily reflects the sale of
Apache's interest in a gas gathering system in Western Oklahoma in March 1993.
As a result, gross margins from gathering, processing and marketing were $4.9
million in 1993, a decline of 32 percent from 1992.
 
COSTS AND EXPENSES
 
     Operating costs were up two percent in 1993 to $128.1 million, as a decline
in operating costs per barrel of oil equivalent was offset by the impact of
increased production. Operating costs include lifting costs, workover expense,
and applicable domestic or foreign production taxes. On an equivalent unit of
production basis, operating costs declined six percent in 1993 to $4.10 per boe,
down from $4.38 per boe in 1992. Apache's declining costs per boe reflect
increasing natural gas production and lower production costs associated with the
operation of gas-bearing properties as compared with oil-bearing properties.
Apache's operating costs were also reduced by refunds of well-control insurance
totaling $.7 million and production tax refunds totaling $1.8 million during
1993.
 
     Depreciation, depletion and amortization (DD&A) expense rose 12 percent
year-over-year to $176.3 million due to increased sales of natural gas and
increased Australian production. Although Apache's domestic amortization rate of
38.7 percent of sales for 1993 was down slightly from 1992, declining oil prices
and the higher costs associated with newly acquired offshore properties, which
reflect shorter reserve lives and faster expected payouts, combined to increase
Apache's domestic amortization rate in the second half of 1993. Recurring
international DD&A increased as a result of substantially increased Australian
production.
 
     International impairments, which rose to $23.2 million in 1993 from $12
million in 1992, included $6.7 million of the Company's investments in West
Africa which the Company wrote off in the third quarter of 1993 when it
recognized a reduced probability of establishing commercial operations on two of
Apache's
 
                                       15
<PAGE>   18
 
concessions. The 1993 impairments also included provisions for Apache's
investment in the Java Sea (Indonesia) and Nanteau (France).
 
     Administrative, selling and other costs were down five percent from those
incurred in 1992, despite the Company's acquisitions during 1993. The reduction
reflects the Company's sustained efforts to contain costs, the incremental
administrative costs incurred in the 1992 corporate relocation to Houston, and
the integration of MW. In 1993, Apache successfully assimilated the HERC and
Hall-Houston properties with minimal additions to its administrative staff.
Administrative cost reductions were partially offset, however, by expenses
associated with an employee benefit plan based on Apache common stock, which
increased in price by approximately 25 percent from year-end 1992 to year-end
1993.
 
     Net financing costs declined 17 percent in 1993 despite the use of bank
debt to fund the HERC and Hall-Houston acquisitions. The decline is primarily
attributable to a decline of approximately 100 basis points in Apache's
effective interest rate in 1993 as compared with 1992, reflecting a general
decline in interest rates and the conversion of Apache's 7 1/2-percent
convertible subordinated debentures due 2000 into shares of Apache common stock
in September 1993. Interest expense also declined as a result of Apache's
repayment of bank debt from a portion of the $131.8 million in net proceeds of
its public offering of common stock in March 1993, the successful conversion of
approximately $150 million of its 7 1/2-percent convertible subordinated
debentures due 2000 and through the redemption of $7 million of 9-percent
convertible subordinated debentures due 2001. Debt reductions attributable to
the public offering and debt conversion in 1993 were offset by debt incurred in
connection with acquisitions. On December 31, 1993, Apache's outstanding debt
balance was $462 million, an increase of one percent from $455.5 million on
December 31, 1992.
 
PRIOR-YEAR COMPARATIVE INFORMATION
 
     The Company's net income for 1992 increased 38 percent over 1991 to $47.8
million, or $1.02 per share. Revenues for 1992 totaled $454.3 million, or 27 
percent higher than revenues for 1991. Production revenues for 1992 totaled 
$394.6 million compared to $316.1 million in 1991. Oil and gas revenues in 
1992 were influenced by strong second-half gas prices, a decrease in natural 
gas production resulting from the disposition of largely gas-bearing properties
in 1991 and from curtailments in 1992, and the effect of a full year of oil 
production from properties included in the MW acquisition.
 
     Natural gas sales contributed $168.8 million to revenues in 1992, up two
percent from 1991, primarily the result of the surge in prices in the second
half of the year. For 1992, Apache's average realized gas price was $1.76 per
Mcf, up 11 percent over 1991, positively affecting 1992 revenues by $16.9
million.
 
     Gas production for 1992 totaled 262.2 MMcf per day, down nine percent from
1991, negatively affecting 1992 revenues by $13.7 million. Production declined
for several reasons, the most significant of which was Apache's disposition of
approximately $187 million of largely gas-bearing properties during 1991 and
1992 following the MW acquisition. The net effect of Apache's compliance with
prorationing legislation enacted during 1992 accounted for an approximate
11-MMcf decrease in average daily gas production. Ordinary reserve depletion and
the voluntary curtailment of gas production in Oklahoma and the Gulf of Mexico
during the first quarter of 1992 due to low gas prices also reduced production.
 
     Increased oil production contributed to a record $218.9 million in oil
sales during 1992, a 53-percent increase over 1991. Total oil production of 12.1
MMbbls increased 55 percent over the prior year due to the inclusion of a full
year's production volumes from the MW properties. The Company's average realized
oil price of $18.16 declined one percent from 1991.
 
     Revenues from the sale of natural gas liquids and sulfur declined 11
percent from 1991 to $6.9 million in 1992, reflecting the sale of the Spindle
gas processing plant in late 1991 and the Whitney Canyon plant in 1992.
 
     Apache's gross margin from gathering, processing and marketing, excluding
NGC, was $7.1 million in 1992, which was unchanged from 1991.
 
     The major nonrecurring factor affecting 1992 revenues was Apache's mid-year
sale of its interest in NGC. The Company recognized a gain on the NGC sale of
$28.3 million, or $18.5 million after tax. Apache's
 
                                       16
<PAGE>   19
 
investment in NGC, which was accounted for using the equity method, contributed
$2.7 million to Apache's 1992 net income prior to the sale and $8.2 million to
Apache's net income in 1991.
 
     In July 1991, Apache completed its acquisition of MW for $511.4 million in
cash, the assumption of $4.1 million in net liabilities and the issuance of two
million shares of Apache common stock. At closing, MW had net proved reserves of
63 MMbbls of oil and 288 Bcf of gas. With the MW acquisition and subsequent
disposition of non-strategic properties, Apache effectively doubled its proved
reserves and increased the proportion of oil in its total reserves from 21
percent to 44 percent. Also in 1991, the Company accrued the cost of relocating
its corporate headquarters to Houston, Texas, resulting in a one-time charge
that reduced net income by $7.1 million. Included in other revenues in 1991 was
$5.6 million related to a favorable take-or-pay settlement.
 
     Operating costs, up 37 percent to $125.3 million, reflected 12 months of
ownership of the MW properties. On an equivalent unit of production basis,
production costs and production taxes rose to $4.38 per boe, up from $3.54 per
boe in 1991, reflecting the higher costs associated with MW's predominantly
oil-bearing properties.
 
     In 1992, DD&A expense rose 19 percent from the previous year to $157.5
million due to higher domestic oil and gas sales while the Company's
international impairments rose to $12 million. The increase in amortization
expense due to higher sales was mitigated, however, by the favorable impact of
the MW acquisition, the effect of which decreased the domestic amortization rate
on oil and gas production revenues from 40.8 percent in 1991 to 38.8 percent in
1992.
 
     Administrative, selling and general costs were down 15 percent in 1992 from
those incurred in 1991, which included an $11.1 million pre-tax provision for
the relocation of the Company's headquarters. Excluding the impact of the 1991
relocation provision, the Company's administrative, selling and other costs for
1992 increased 16 percent over 1991, reflecting the cost of administering MW's
properties for a full year, the continued cost of integrating the MW properties,
and the incurrence of $2.7 million in additional relocation expenses in 1992.
 
     Although Apache reduced its outstanding debt from $495.7 million at
year-end 1991 to $455.5 million at year-end 1992, interest expense rose 15
percent in 1992 as compared with 1991, which included only six months of
interest on the MW acquisition debt. Debt reduction during the year and lower
interest rates contributed to a 22-percent decrease in average monthly interest
expense in 1992 as compared to the second half of 1991. Amortization of loan
costs nearly doubled in 1992, reflecting costs of the MW debt and the issuance
of additional senior debt in 1992.
 
CASH FLOW, LIQUIDITY AND CAPITAL RESOURCES
 
CAPITAL COMMITMENTS
 
     Apache's primary needs for cash are for exploration, development and
acquisition of oil and gas properties, repayment of principal and interest on
outstanding debt, and payment of dividends. The Company generally funds its
exploration and development activities through internally generated cash flows
and budgets its capital expenditures based upon projected cash flows. Apache
routinely adjusts its capital expenditures in response to changes in oil and gas
prices and corresponding changes in cash flow.
 
     Expenditures for exploration and development increased to $218.9 million in
1993 from $136.7 million in 1992. Apache completed 213 producing wells out of
274 wells drilled during the year compared with 209 wells drilled in 1992, of
which 155 were completed as producers. Expenditures for exploration and
development in 1994, including workover and recompletion operations, are
anticipated to be $240 million, including $25 million relating to international
operations, and will be reviewed quarterly in light of oil and gas prices.
 
     Cash expenditures for acquisitions during 1993 were $260.9 million,
compared to $63 million in 1992, which included the $57.4-million acquisition of
an additional 93-percent working interest in Matagorda Island Blocks 681 and 682
from Shell Offshore Inc. in November 1992. The cost of acquisitions, including
the value of the shares issued and liabilities added through the merger of HERC,
totaled $324.6 million in 1993. Apache's most significant transactions during
1993 were its acquisitions of oil and gas properties from Hall-
 
                                       17
<PAGE>   20
 
Houston for $113.7 million in cash and the acquisition of HERC. Apache acquired
all of the outstanding stock of HERC for approximately $98 million, which
included the issuance of 307,977 shares of Apache common stock (305,003 shares
in 1993) and cash payments to HERC stockholders. Net cash outlays attributable
to the acquisition of HERC totaled $70.7 million in 1993. Apache also acquired
more than $76.5 million of other properties during 1993, primarily representing
purchases of additional working interests in existing Apache properties,
including the purchase of Key Production Company's interest in certain
properties held by Apache Operating Partnership L.P. prior to its dissolution
during the first quarter of 1993.
 
     Other capital expenditures for 1993 include the purchase of NGC's interest
in a gas gathering system in western Oklahoma which was sold in March 1993, in a
transaction described under "Capital Resources" below.
 
     Funds for the 1993 acquisitions were obtained principally from borrowings
under the Company's revolving bank credit agreement. The Company aggressively
pursues acquisition opportunities as part of its reserve growth strategy. The
amount and timing of future funding requirements for acquisitions are dependent
upon several factors, including the market for oil and gas properties, and
cannot be predicted for the upcoming year.
 
     At December 31, 1993, Apache had outstanding $240.0 million under its
revolving bank credit facility, $41.6 million in additional bank debt
consolidated through the HERC acquisition, and an aggregate of $180.4 million in
principal amount of other long-term debt, comprised principally of notes and
debentures maturing in the years 1997 through 2002. The Company's overall debt
increased $6.6 million from December 31, 1992, as borrowing for acquisitions
offset the impact of Apache's 1993 equity offering and debenture conversion. In
1993, Apache made cash payments on long-term debt totaling $162 million, of
which $1.1 million was scheduled under these debt obligations. Interest payments
on the Company's outstanding debt obligations during 1994 are projected (using
weighted average balances for floating rate obligations) to be approximately $27
million, while scheduled principal payments for 1994 currently total $9 million.
 
     Dividends paid during 1993 totaled $14.9 million, up 14 percent from 1992,
primarily due to the issuance of approximately 5.8 million shares of Apache
common stock in connection with the Company's March 1993 equity offering and the
issuance of approximately 7.8 million shares upon conversion of its outstanding
7 1/2-percent convertible subordinated debentures due 2000. The Company's
dividend policy currently provides for the payment of regular quarterly
dividends at the rate of $.28 per share annually. Although no change in the
dividend policy is contemplated for 1994, the declaration and amount of future
dividends is dependent upon the Company's cash requirements, applicable debt
covenants and other factors deemed relevant by the Board of Directors.
 
CAPITAL RESOURCES
 
     The Company's primary capital resources are net cash provided by operating
activities, proceeds from financing activities and proceeds from sales of
non-strategic assets.
 
     Net cash provided by operating activities during 1993 was $225.1 million,
up $30.7 million from 1992. The 16-percent improvement in cash flows primarily
reflects increased gas production, higher gas prices and reduced interest costs.
Future cash flows will be influenced by product prices and production volumes
and are not presently ascertainable.
 
     In March 1993, Apache and NGC completed the sale of their respective
interests in a gathering system in western Oklahoma. Apache received gross cash
proceeds of approximately $32.2 million in the transaction, of which $16.4
million was attributable to NGC's interest in the system.
 
     Also in March 1993, Apache completed the public offering of approximately
5.8 million shares of Apache common stock for net proceeds of $131.8 million. In
April 1993, Apache applied the proceeds to repay all outstanding debt under its
revolving bank credit facility. In October 1993, the borrowing base under
Apache's revolving bank credit facility was increased to $400 million. As of
December 31, 1993, the Company had reborrowed $240 million under the facility,
largely to fund the purchase of the Hall-Houston properties and the HERC
acquisition.
 
                                       18
<PAGE>   21
 
     The availability of funds under Apache's $400-million revolving bank credit
facility is subject to the maintenance of certain financial covenants by the
Company and to periodic redetermination by its bank group based upon the
Company's estimated oil and gas reserve values and forecast rates of production.
The Company has complied with its financial covenants at all times since the
inception of the revolving credit facility in July 1991. The facility matures on
April 30, 1996, and, with the lenders' consent, may be extended in one-year
increments or converted into a term loan.
 
     At December 31, 1993, HERC and its wholly-owned subsidiary, Hadson Energy
Limited (HEL), each had a credit facility with Bank of Montreal. At year end,
credit available under the HERC facility was $26 million, of which $19.6 million
was outstanding. The HEL facility had a total of $22 million outstanding at
year-end 1993 with repayment to be made in quarterly installments of $2 million
each plus interest until repaid in full in July 1996.
 
     In September 1993, Apache completed the conversion of its 7 1/2-percent
convertible subordinated debentures due 2000, resulting in the issuance of
approximately 7.8 million shares of Apache common stock. Primarily as a result
of the conversion and Apache's March 1993 equity offering, Apache's debt as a
percentage of capital declined to 37 percent at December 31, 1993, despite
increased bank debt incurred for 1993 acquisitions.
 
     In May 1992, Apache issued 9.25-percent notes due 2002 in the principal
amount of $100 million. Proceeds from the offering were used to reduce bank
debt, pay off the 9.5-percent convertible debentures due 1996 and for general
corporate purposes. In December 1992, the Company privately placed 3.93-percent
convertible notes due 1997 in the principal amount of $75 million. The
3.93-percent notes are not redeemable before maturity and are convertible into
Apache common stock at the option of the holders at any time prior to maturity
at a conversion price of $27.00 per share. Proceeds from the sale of the
3.93-percent notes were used to repay bank debt.
 
LIQUIDITY
 
     The Company had $17.1 million in cash and cash equivalents on hand at
December 31, 1993, down from $26.1 million at the end of 1992. The Company's
ratio of current assets to current liabilities at year end of .7:1 was unchanged
from year-end 1992.
 
     Management believes that cash on hand at year end, net cash generated from
operations and unused available borrowing capacity under the revolving credit
facility will be adequate to meet future liquidity needs for at least the next
two fiscal years, including satisfying the Company's financial obligations and
funding exploration and development operations and routine acquisitions.
 
FUTURE TRENDS
 
     Apache intends to continue increasing production and reserves through
drilling and property acquisitions. Apache is considering increasing its current
borrowing capacity to enhance its ability to pursue additional growth
opportunities. Although the Company's future performance is difficult to
predict, the following factors are likely to impact its operating results and
financial condition in the future.
 
CONTINUING VOLATILITY OF PRODUCT PRICES
 
     In 1993, spot market natural gas prices remained volatile and continued to
behave independently of historical seasonal patterns, although in a relatively
higher range of average monthly prices from approximately $1.79 per Mcf in
February to $2.26 per Mcf in December. Spot market oil prices, which are
especially vulnerable to complex and unpredictable political and economic
forces, also remained volatile in 1993, as Apache's average realized price
fluctuated from $18.97 per barrel in April to $12.88 per barrel in December. The
recent failure of OPEC to reduce production quotas and the addition of more than
one million barrels of oil per day of North Sea crude production suggest that
oil prices will not improve in the near term. Management believes that, absent a
comprehensive U.S. energy policy, oil prices will continue to fluctuate in
response to changes in the policies of OPEC, events in the Middle East and
events in certain non-OPEC
 
                                       19
<PAGE>   22
 
countries. Management also believes that gas prices will remain volatile and may
not necessarily conform to historical cycles based on heating seasons.
 
ENVIRONMENTAL REGULATION
 
     The Company operates under numerous state and federal laws regulating the
discharge of materials into, and the protection of, the environment. In the
ordinary course of business, Apache conducts an ongoing review of the effects of
these various environmental laws on its business and operations. The estimated
cost of continued compliance with current environmental laws, based upon the
information currently available, is not material to the Company's financial
position or results of operations. It is impossible to determine whether and to
what extent Apache's future performance may be affected by environmental laws;
however, management does not believe that such laws will have a material adverse
effect on the Company's financial position or results of operations.
 
ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA
 
     The financial statements and supplementary financial information required
to be filed under this item are presented on pages F-1 through F-30 of this Form
10-K, and are incorporated herein by reference.
 
ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
        FINANCIAL DISCLOSURE
 
     None.
 
                                    PART III
 
ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE REGISTRANT
 
     The information set forth under the captions "Information About Nominees
for Election as Directors," "Continuing Directors," "Executive Officers of the
Company," and "Voting Securities and Principal Holders" in the Company's proxy
statement relating to the Company's 1994 annual meeting of shareholders (the
"Proxy Statement") is incorporated herein by reference.
 
ITEM 11. EXECUTIVE COMPENSATION
 
     The information set forth under the captions "Summary Compensation Table,"
"Option/SAR Grants Table," "Options/SAR Exercises and Year-End Value Table,"
"Employment Contracts and Termination of Employment and Change-in-Control
Arrangements," and "Director Compensation" in the Proxy Statement is
incorporated herein by reference.
 
ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT
 
     The information set forth under the caption "Voting Securities and
Principal Holders" in the Proxy Statement is incorporated herein by reference.
 
ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
 
     The information set forth under the caption "Transactions with Officers and
Directors" in the Proxy Statement is incorporated herein by reference.
 
                                       20
<PAGE>   23
 
                                    PART IV
 
ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K
 
(A) DOCUMENTS INCLUDED IN THIS REPORT:
 
     1. FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
        <S>                                                                             <C>
        Report of independent public accountants....................................... F-1
        Report of management........................................................... F-2
        Statement of consolidated income for each of the three years in the period
         ended December 31, 1993....................................................... F-3
        Statement of consolidated cash flows for each of the three years in the period
         ended December 31, 1993....................................................... F-4
        Consolidated balance sheet as of December 31, 1993 and 1992.................... F-5
        Statement of consolidated shareholders' equity for each of the three years in
         the period ended December 31, 1993............................................ F-7
        Summary of significant accounting policies..................................... F-8
        Notes to consolidated financial statements..................................... F-10
        Supplemental oil and gas disclosures........................................... F-21
        Supplemental quarterly financial data.......................................... F-27
</TABLE>
 
     2. FINANCIAL STATEMENT SCHEDULES
 
        Schedules V, VI and X are included as pages F-28 through F-30 of this
        Form 10-K. Schedules I, II, III, IV, VII, VIII, IX, XI, XII and XIII
        have been omitted because they are either not required, not applicable
        or the information required to be presented is included in the Company's
        financial statements and related notes.
 
                                       21
<PAGE>   24
 
     3. EXHIBITS
 
<TABLE>
<CAPTION>
    EXHIBIT NO.                                    DESCRIPTION
    -----------                                    -----------
         <S>         <C>
          2.1        -- Stock Purchase Agreement, dated July 1, 1991, between the Registrant
                        and Amoco Production Company (incorporated by reference to Exhibit
                        10.1 to Registrant's Current Report on Form 8-K, dated July 1, 1991,
                        Commission File No. 1-4300, filed on July 19, 1991).
          2.2        -- Form of Acquisition Agreement between Apache Corporation, HERC
                        Acquisition Corporation and Hadson Energy Resources Corporation,
                        dated August 26, 1993, and amended September 28, 1993 (incorporated
                        by reference to Exhibit 2.1 to Registrant's Registration Statement on
                        Form S-4, Registration No. 33-67954, filed on September 29, 1993).
          2.3        -- Purchase and Sale Agreement between Hall-Houston Oil Company, as
                        seller, and Registrant, as buyer, dated as of June 2, 1993
                        (incorporated by reference to Exhibit 10.1 to Registrant's Current
                        Report on Form 8-K, dated August 31, 1993, Commission File No.
                        1-4300, filed on September 7, 1993).
          2.4        -- Purchase and Sale Agreement between Hall-Houston Oil Company, as
                        seller, and Registrant, as buyer, dated as of August 13, 1993
                        (incorporated by reference to Exhibit 10.2 to Registrant's Current
                        Report on Form 8-K, dated August 31, 1993, Commission File No.
                        1-4300, filed on September 7, 1993).
          2.5        -- Matagorda Island 681 Field Purchase and Sale Agreement with Option to
                        Exchange, dated November 24, 1992, between Shell Offshore Inc., SOI
                        Royalties Inc., and Registrant (incorporated by reference to Exhibit
                        10.7 to Apache Offshore Investment Partnership's Annual Report on
                        Form 10-K for the year ended December 31, 1992, Commission File No.
                        0-13546, filed March 31, 1993).
         *3.1        -- Restated Certificate of Incorporation of the Registrant, dated
                        December 1, 1993, as filed with the Secretary of State of Delaware on
                        December 16, 1993.
          3.2        -- Bylaws of the Registrant, dated as of December 9, 1992 (incorporated
                        by reference to Exhibit 3.3 of Registrant's Annual Report on Form
                        10-K for the year ended December 31, 1992, Commission file 1-4300,
                        filed on March 10, 1993).
          4.1        -- Form of common stock certificate (incorporated by reference to the
                        Registrant's Registration Statement on Form S-3, Registration No.
                        33-5097, filed on April 23, 1986).
          4.2        -- Rights Agreement, dated as of January 10, 1986, between the
                        Registrant and First Trust Company, Inc., rights agent, relating to
                        the declaration of Rights to the Registrant's common stockholders of
                        record on January 24, 1986 (incorporated by reference to Exhibit 4.9
                        to Registrant's Annual Report on Form 10-K for the year ended
                        December 31, 1985, Commission File No. 1-4300, filed on March 31,
                        1986).
         10.1        -- Amended and Restated Credit Agreement, dated April 15, 1992, among
                        Registrant, the lenders named therein and The First National Bank of
                        Chicago and Chemical Bank, as agents (incorporated by reference to
                        Exhibit 10.01 to Registrant's Registration Statement on Form S-3,
                        Registration No. 33-47363, filed on April 21, 1992).
         10.2        -- Third Amendment to Amended and Restated Credit Agreement, dated April
                        30, 1993, among Registrant, the lenders named therein and The First
                        National Bank of Chicago and Chemical Bank, as agents (incorporated
                        by reference to Exhibit 10.1 to Registrant's Quarterly Report on Form
                        10-Q for the quarter ended June 30, 1993, Commission File No. 1-4300,
                        filed August 16, 1993).
</TABLE>
 
                                       22
<PAGE>   25
 
<TABLE>
<CAPTION>
    EXHIBIT NO.                                    DESCRIPTION
    -----------                                    -----------
       <S>           <C>
        *10.3        -- Fourth Amendment to Amended and Restated Credit Agreement, dated July
                        13, 1993, among Registrant, the lenders named therein and The First
                        National Bank of Chicago and Chemical Bank, as agents.
         10.4        -- Credit Agreement, dated as of July 24, 1992, between Registrant, the
                        lenders named therein and The First National Bank of Chicago, as
                        agent (incorporated by reference to Exhibit 10.1 to Registrant's
                        Quarterly Report on Form 10-Q for the quarter ended June 30, 1992,
                        Commission File No. 1-4300, filed on August 14, 1992).
         10.5        -- Credit Agreement, dated as of December 18, 1990, by and between
                        Hadson Energy Resources Corporation, the lenders named therein and
                        Bank of Montreal, as agent (incorporated by reference to Exhibit 10.1
                        to Hadson Energy Resources Corporation's Annual Report on Form 10-K
                        for the year ended December 31, 1990, Commission File No. 0-18236,
                        filed March 11, 1991).
        *10.6        -- Second Amendment to Credit Agreement, dated as of December 22, 1993,
                        by and between Hadson Energy Resources Corporation, the lenders named
                        therein and Bank of Montreal, as agent.
         10.7        -- Acceptance Agreement, dated as of June 6, 1991, by and between Hadson
                        Energy Limited, the lenders named therein and Bank of Montreal, as
                        agent (incorporated by reference to Hadson Energy Resources
                        Corporation's Quarterly Report on Form 10-Q for the quarter ended
                        June 30, 1991, Commission File No. 0-18236, filed August 13, 1991).
        *10.8        -- Second Amendment to Acceptance Agreement, dated as of December 22,
                        1993, by and between Hadson Energy Limited, the lenders named therein
                        and Bank of Montreal, as agent.
         10.9        -- Stock Purchase Agreement, dated July 1, 1991, between the Registrant
                        and Amoco Production Company (incorporated by reference to Exhibit
                        10.1 to Registrant's Current Report on Form 8-K, dated July 1, 1991,
                        Commission File No. 1-4300, filed on July 19, 1991).
         10.10       -- Oil and Gas Hedging Agreement, dated as of July 1, 1991, between the
                        Registrant and Amoco Production Company (incorporated by reference to
                        Exhibit 10.4 to Registrant's Current Report on Form 8-K, dated July
                        1, 1991, Commission File No. 1-4300, filed on July 19, 1991).
         10.11       -- Geotechnical Data Agreement and License, dated July 1, 1991, between
                        the Registrant and Amoco Production Company (incorporated by
                        reference to Exhibit 10.5 to Registrant's Current Report on Form 8-K,
                        dated July 1, 1991, Commission File No. 1-4300, filed on July 19,
                        1991).
        +10.12       -- 1982 Employee Stock Option Plan, as updated in January 1987 to
                        conform to the Tax Reform Act of 1986 (incorporated by reference to
                        Exhibit 10.7 to Registrant's Annual Report on Form 10-K for the year
                        ended December 31, 1990, Commission File No. 1-4300, filed on March
                        27, 1991).
        +10.13       -- Apache Corporation Corporate Administrative Group Incentive Plan,
                        effective as of January 1, 1989 (incorporated by reference to Exhibit
                        10.8 to Registrant's Annual Report on Form 10-K for the year ended
                        December 31, 1990, Commission File No. 1-4300, filed on March 27,
                        1991).
       *+10.14       -- First Amendment, dated October 22, 1990, to the Apache Corporation
                        Corporate Administrative Group Incentive Plan.
</TABLE>
 
                                       23
<PAGE>   26
 
<TABLE>
<CAPTION>
    EXHIBIT NO.                                    DESCRIPTION
- -------------------- ------------------------------------------------------------------------
       <S>           <C>
        +10.15       -- Apache Corporation 401(k) Retirement/Savings Plan, dated November 16,
                        1989, amended July 9, 1992, effective January 1, 1989 (incorporated
                        by reference to Exhibit 10.16 to Registrant's Annual Report on Form
                        10-K for the year ended December 31, 1992, Commission File No.
                        1-4300, filed on March 10, 1993).
       *+10.16       -- Amendment to the Apache Corporation 401(k) Retirement/Savings Plan,
                        dated December 31, 1993.
        +10.17       -- Apache International, Inc. Common Stock Award Plan, dated February
                        12, 1990 (incorporated by reference to Exhibit 10.13 to Registrant's
                        Annual Report on Form 10-K for the year ended December 31, 1989,
                        Commission File No. 1-4300, filed on April 2, 1990).
        +10.18       -- Apache Corporation 1990 Phantom Stock Appreciation Plan, dated as of
                        September 28, 1990 (incorporated by reference to Exhibit 10.17 to
                        Registrant's Annual Report on Form 10-K for the year ended December
                        31, 1990, Commission File No. 1-4300, filed on March 27, 1991).
        +10.19       -- Apache Corporation 1990 Stock Incentive Plan, dated as of September
                        28, 1990 (incorporated by reference to Exhibit 10.18 to Registrant's
                        Annual Report on Form 10-K for the year ended December 31, 1990,
                        Commission File No. 1-4300, filed on March 27, 1991).
        +10.20       -- Amendment No. 1 to the Apache Corporation 1990 Stock Incentive Plan,
                        dated as of July 17, 1992 (incorporated by reference to Exhibit 4.4
                        to Registrant's Registration Statement on Form S-8, Registration No.
                        33-53442, filed on October 19, 1992).
        +10.21       -- Apache Corporation Income Continuance Plan, including Amendment Nos.
                        1 and 2, restated as of February 24, 1988 (incorporated by reference
                        to Exhibit 10.19 to Registrant's Annual Report on Form 10-K for the
                        year ended December 31, 1990, Commission File No. 1-4300, filed on
                        March 27, 1991).
        +10.22       -- Apache Corporation 1986 Phantom Stock Appreciation Plan (incorporated
                        by reference to Exhibit 10.20 to Registrant's Annual Report on Form
                        10-K for the year ended December 31, 1990, Commission File No.
                        1-4300, filed on March 27, 1991).
        +10.23       -- Apache Corporation Directors' Deferred Compensation Plan
                        (incorporated by reference to Exhibit 10.21 to Registrant's Annual
                        Report on Form 10-K for the year ended December 31, 1990, Commission
                        File No. 1-4300, filed on March 27, 1991).
        +10.24       -- Apache Corporation Phantom Stock Appreciation Plan for Directors,
                        effective as of May 4, 1989 (incorporated by reference to Exhibit
                        10.22 to Registrant's Annual Report on Form 10-K for the year ended
                        December 31, 1990, Commission File No. 1-4300, filed on March 27,
                        1991).
        +10.25       -- Apache Corporation Outside Directors' Retirement Plan, effective
                        December 15, 1992 (incorporated by reference to Exhibit 10.25 to
                        Registrant's Annual Report on Form 10-K for the year ended December
                        31, 1992, Commission File No. 1-4300, filed on March 10, 1993).
       *+10.26       -- Apache Corporation Equity Compensation Plan for Non-Employee
                        Directors, adopted February 9, 1994, and form of Restricted Stock
                        Award Agreement.
        +10.27       -- Amended and Restated Employment Agreement, dated December 5, 1990,
                        between the Registrant and Raymond Plank (incorporated by reference
                        to Exhibit 10.9 to Registrant's Annual Report on Form 10-K for the
                        year ended December 31, 1990, Commission File No. 1-4300, filed on
                        March 27, 1991).
</TABLE>
 
                                       24
<PAGE>   27
 
<TABLE>
<CAPTION>
    EXHIBIT NO.                                    DESCRIPTION
    -----------                                    -----------
       <S>           <C>
        +10.28       -- Amended and Restated Employment Agreement, dated December 20, 1990,
                        between the Registrant and John A. Kocur (incorporated by reference
                        to Exhibit 10.10 to Registrant's Annual Report on Form 10-K for the
                        year ended December 31, 1990, Commission File No. 1-4300, filed on
                        March 27, 1991).
        +10.29       -- Employment Agreement, dated March 20, 1991, between the Registrant
                        and William J. Johnson (incorporated by reference to Exhibit 10.15 to
                        Registrant's Annual Report on Form 10-K for the year ended December
                        31, 1992, Commission File No. 1-4300, filed on March 10, 1993).
       *+10.30       -- Consulting Agreement, dated November 1, 1993, between the Registrant
                        and John A. Kocur.
       *+10.31       -- Consulting Agreement, dated November 10, 1993, between the Registrant
                        and George J. Morgenthaler.
       *+10.32       -- Consulting Agreement, dated March 15, 1994, between the Registrant
                        and Bijan Mossavar-Rahmani.
         *11.1       -- Statement regarding computation of earnings per share of the
                        Registrant's common stock for the year ended December 31, 1993.
         *21.1       -- Subsidiaries of the Registrant.
         *23.1       -- Consent of Arthur Andersen & Co.
         *23.2       -- Consent of Ryder Scott Company Petroleum Engineers.
         *23.3       -- Consent of Intera Information Technologies Inc.
</TABLE>
 
- ---------------
* Filed herewith.
 
+ Management contracts or compensatory plans or arrangements required to be
  filed herewith pursuant to Item 14 hereof.
 
Note: Debt instruments of the Registrant defining the rights of long-term debt
      holders in principal amounts not exceeding 10 percent of the Registrant's
      consolidated assets have been omitted and will be provided to the
      Commission upon request.
 
(B) REPORTS ON FORM 8-K
 
     No reports on Form 8-K were filed during the fiscal quarter ended December
31, 1993.
 
                                       25
<PAGE>   28
 
                                   SIGNATURES
 
     Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.
<TABLE>
<S>                                         <C>
                                                    APACHE CORPORATION

                                            By:      /s/  RAYMOND PLANK
                                                  -------------------------------
                                                       Raymond Plank,
Date: March 21, 1994                        Chairman and Chief Executive Officer
</TABLE>
 
                               POWER OF ATTORNEY
 
     The officers and directors of Apache Corporation, whose signatures appear
below, hereby constitute and appoint William J. Johnson, Mark A. Jackson and
Clyde E. McKenzie, and each of them (with full power to each of them to act
alone), the true and lawful attorney-in-fact to sign and execute, on behalf of
the undersigned, any amendment(s) to this report and each of the undersigned
does hereby ratify and confirm that all said attorneys shall do or cause to be
done by virtue thereof.
 
     Pursuant to the requirements of the Securities Exchange Act of 1934, this
report has been signed below by the following persons on behalf of the
registrant and in the capacities and on the dates indicated.*
 
<TABLE>
<CAPTION>
                  SIGNATURE                                TITLE                     DATE
- ---------------------------------------------   ----------------------------   -----------------
<S>                                             <C>                            <C>
             /s/  RAYMOND PLANK                 Chairman and Chief Executive   March 21, 1994
- ---------------------------------------------    Officer (Principal Executive
                  Raymond Plank                  Officer)

            /s/  MARK A. JACKSON                Vice President and Chief       March 21, 1994
- ---------------------------------------------    Accounting Officer
                 Mark A. Jackson                 (Principal Accounting
                                                 Officer)
                                         
        /s/  FREDERICK M. BOHEN                 Director                       March 21, 1994
- ---------------------------------------------                     
             Frederick M. Bohen

           /s/  VIRGIL B. DAY                   Director                       March 21, 1994
- ---------------------------------------------
                Virgil B. Day

         /s/  RANDOLPH M. FERLIC                Director                       March 21, 1994
- ---------------------------------------------                    
              Randolph M. Ferlic

        /s/  EUGENE C. FIEDOREK                 Director                       March 21, 1994
- ---------------------------------------------                   
             Eugene C. Fiedorek

         /s/  W. BROOKS FIELDS                  Director                       March 21, 1994
- ---------------------------------------------                    
              W. Brooks Fields

       /s/  ROBERT V. GISSELBECK                Director                       March 21, 1994
- ---------------------------------------------                  
            Robert V. Gisselbeck

        /s/  STANLEY K. HATHAWAY                Director                       March 21, 1994
- --------------------------------------------                   
             Stanley K. Hathaway

        /s/  WILLIAM J. JOHNSON                 Director                       March 21, 1994
- --------------------------------------------                    
             William J. Johnson

           /s/  JOHN A. KOCUR                   Director                        March 21, 1994
- --------------------------------------------                     
                John A. Kocur

          /s/  JAY A. PRECOURT                  Director                       March 21, 1994
- --------------------------------------------                   
               Jay A. Precourt

          /s/  JOSEPH A. RICE                   Director                        March 21, 1994
- --------------------------------------------                     
               Joseph A. Rice
</TABLE>
 
* Apache Corporation does not have a Principal Financial Officer.
<PAGE>   29
 
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
To The Shareholders of Apache Corporation:
 
     We have audited the accompanying consolidated balance sheet of Apache
Corporation (a Delaware corporation) and Subsidiaries as of December 31, 1993
and 1992, and the related statements of consolidated income, shareholders'
equity, and cash flows for each of the three years in the period ended December
31, 1993. These financial statements and schedules are the responsibility of the
Company's management. Our responsibility is to express an opinion on these
financial statements and schedules based on our audits.
 
     We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
     In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the financial position of Apache
Corporation and Subsidiaries as of December 31, 1993 and 1992, and the results
of their operations and their cash flows for each of the three years in the
period ended December 31, 1993, in conformity with generally accepted accounting
principles.
 
     Our audits were made for the purpose of forming an opinion on the basic
consolidated financial statements taken as a whole. The schedules listed in Item
14(a)2 are presented for purposes of complying with the Securities and Exchange
Commission's rules and are not part of the basic consolidated financial
statements. These schedules have been subjected to the auditing procedures
applied in our audits of the basic consolidated financial statements and, in our
opinion, fairly state in all material respects the financial data required to be
set forth therein in relation to the basic consolidated financial statements
taken as a whole.
 
                                            ARTHUR ANDERSEN & CO.
 
Houston, Texas
February 8, 1994
 
                                       F-1
<PAGE>   30
 
                              REPORT OF MANAGEMENT
 
     The financial statements and related financial information of Apache
Corporation and Subsidiaries were prepared by and are the responsibility of
management. The statements have been prepared in conformity with generally
accepted accounting principles and include amounts that are based on
management's best estimates and judgments.
 
     Management maintains and places reliance on systems of internal control
designed to provide reasonable assurance, weighing the costs with the benefits
sought, that all transactions are properly recorded in the Company's books and
records, that policies and procedures are adhered to and that assets are
safeguarded. The systems of internal controls are supported by written policies
and guidelines, internal audits and the selection and training of qualified
personnel.
 
     The consolidated financial statements have been audited by Arthur Andersen
& Co., independent public accountants. Their audits included developing an
overall understanding of the Company's accounting systems, procedures and
internal controls and conducting tests and other auditing procedures sufficient
to support their opinion on the fairness of the consolidated financial
statements.
 
     The Board of Directors exercises its oversight responsibility for the
financial statements through its Audit Committee, composed solely of directors
who are not employed by Apache. The Audit Committee meets periodically with
management, internal auditors and the independent public accountants to ensure
that they are successfully completing designated responsibilities. The internal
auditors and independent public accountants have open access to the Audit
Committee to discuss auditing and financial reporting issues.
 
Raymond Plank
Chairman of the Board
and Chief Executive Officer
 
Mark A. Jackson
Vice President and Chief Accounting Officer
 
                                       F-2
<PAGE>   31
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
                        STATEMENT OF CONSOLIDATED INCOME
 
<TABLE>
<CAPTION>
                                                              FOR THE YEAR ENDED DECEMBER 31,
                                                             ----------------------------------
                                                               1993         1992         1991
                                                             --------     --------     --------
                                                                       (IN THOUSANDS,
                                                                  EXCEPT PER SHARE AMOUNTS) 
<S>                                                          <C>          <C>          <C>
REVENUES:
  Oil and gas production revenues........................... $437,342     $394,552     $316,062
  Gathering, processing and marketing revenues..............   25,862       28,594       25,970
  Equity in income of affiliates............................      624        2,695        8,642
  Gain on sale of investment in affiliate...................       --       28,345           --
  Other revenues............................................    2,810          114        6,256
                                                             --------     --------     --------
                                                              466,638      454,300      356,930
                                                             --------     --------     --------
OPERATING EXPENSES:
  Depreciation, depletion and amortization..................  176,335      157,508      132,230
  International impairments.................................   23,200       12,000        3,600
  Operating costs...........................................  128,113      125,337       91,514
  Gathering, processing and marketing costs.................   21,010       21,452       18,909
  Administrative, selling and other.........................   33,193       35,010       41,207
  Financing costs:
     Interest expense.......................................   28,102       35,314       30,737
     Amortization of deferred loan costs....................    3,896        3,888        1,988
     Capitalized interest...................................   (4,764)      (6,035)      (4,967)
     Interest income........................................     (352)        (652)      (2,449)
                                                             --------     --------     --------
                                                              408,733      383,822      312,769
                                                             --------     --------     --------
INCOME BEFORE INCOME TAXES..................................   57,905       70,478       44,161
  Provision for income taxes................................   20,571       22,702        9,546
                                                             --------     --------     --------
NET INCOME.................................................. $ 37,334     $ 47,776     $ 34,615
                                                             --------     --------     --------
                                                             --------     --------     --------
NET INCOME PER COMMON SHARE................................. $    .70     $   1.02     $    .76
                                                             --------     --------     --------
                                                             --------     --------     --------
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING..................   53,534       46,904       45,777
                                                             --------     --------     --------
                                                             --------     --------     --------
</TABLE>
 
     The accompanying summary of significant accounting policies and notes
   to consolidated financial statements are integral parts of this statement.
 
                                       F-3
<PAGE>   32
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
                      STATEMENT OF CONSOLIDATED CASH FLOWS
 
<TABLE>
<CAPTION>
                                                             FOR THE YEAR ENDED DECEMBER 31,
                                                          -------------------------------------
                                                            1993          1992          1991
                                                          ---------     ---------     ---------
                                                                     (IN THOUSANDS)
<S>                                                       <C>           <C>           <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net income............................................. $  37,334     $  47,776     $  34,615
  Adjustments to reconcile net income to net cash
     provided by operating activities:
     Depreciation, depletion and amortization............   176,335       157,508       132,230
     International impairments...........................    23,200        12,000         3,600
     Amortization of deferred loan costs.................     3,896         3,888         1,988
     Provision for deferred income taxes.................    20,571        14,034         4,234
                                                          ---------     ---------     ---------
                                                            261,336       235,206       176,667
  Gain on sale of investment in affiliate................        --       (28,345)           --
  Cash distributions in excess of (less than) earnings of
     affiliates..........................................      (662)        2,650        (2,435)
  Changes in operating assets and liabilities, net of
     effects of acquisitions:
     (Increase) decrease in receivables..................    (9,590)          356       (12,596)
     (Increase) decrease in advances to oil and
       gas ventures and other............................       137        (3,598)        2,881
     (Increase) decrease in deferred charges and other...    (3,904)       (1,415)         (710)
     Increase (decrease) in payables.....................    (4,152)        2,187       (32,328)
     Increase (decrease) in accrued operating costs......    (8,177)       (8,660)       13,370
     Increase (decrease) in deferred credits and
       noncurrent liabilities............................    (9,915)       (3,983)       11,735
                                                          ---------     ---------     ---------
          Net cash provided by operating activities......   225,073       194,398       156,584
                                                          ---------     ---------     ---------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Exploration and development expenditures...............  (218,930)     (136,691)     (111,566)
  Acquisition of oil and gas properties..................  (190,181)      (62,955)     (568,345)
  Noncash portion of net oil and gas property
     additions...........................................     7,104         2,434        28,240
  MW working capital and accrued acquisition costs.......        --            74         9,068
  Purchase of HERC stock, net of cash acquired...........   (70,692)           --            --
  Proceeds from sale of oil and gas properties...........     3,255        37,167       157,018
  Future operating costs for royalty interest sold.......        --            --       (17,000)
  Proceeds from sale of gas gathering system.............    32,201            --            --
  Other capital expenditures, net........................   (30,471)       (7,495)       (3,747)
  Proceeds from sale of investment in affiliate..........        --        50,700            --
  Other, net.............................................     1,145        (1,247)        2,675
                                                          ---------     ---------     ---------
          Net cash used by investing activities..........  (466,569)     (118,013)     (503,657)
                                                          ---------     ---------     ---------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Long-term borrowings...................................   275,424       266,378       468,005
  Payments on long-term debt.............................  (162,000)     (306,565)     (172,275)
  Dividends paid.........................................   (14,919)      (13,130)      (12,671)
  Proceeds from issuance of common stock.................   134,223           630         1,383
  Payments to acquire treasury stock.....................       (25)           (3)          (15)
  Costs of debt and equity transactions..................      (270)       (3,971)      (16,136)
                                                          ---------     ---------     ---------
          Net cash provided (used) by financing
            activities...................................   232,433       (56,661)      268,291
                                                          ---------     ---------     ---------
  NET INCREASE (DECREASE) IN CASH AND
     CASH EQUIVALENTS....................................    (9,063)       19,724       (78,782)
  CASH AND CASH EQUIVALENTS AT
     BEGINNING OF YEAR...................................    26,127         6,403        85,185
                                                          ---------     ---------     ---------
  CASH AND CASH EQUIVALENTS AT END OF YEAR............... $  17,064     $  26,127     $   6,403
                                                          ---------     ---------     ---------
                                                          ---------     ---------     ---------
</TABLE>
 
     The accompanying summary of significant accounting policies and notes
   to consolidated financial statements are integral parts of this statement.
 
                                       F-4
<PAGE>   33
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
                           CONSOLIDATED BALANCE SHEET
 
<TABLE>
<CAPTION>
                                                                           DECEMBER 31,
                                                                     -------------------------
                                                                        1993           1992
                                                                     ----------     ----------
                                                                          (IN THOUSANDS)
<S>                                                                  <C>            <C>
                                    ASSETS
CURRENT ASSETS:
  Cash and cash equivalents........................................  $   17,064     $   26,127
  Receivables......................................................      91,840         75,777
  Inventories......................................................       7,152          6,202
  Advances to oil and gas ventures and other.......................       6,884          5,749
                                                                     ----------     ----------
                                                                        122,940        113,855
                                                                     ----------     ----------
PROPERTY AND EQUIPMENT:
  Oil and gas, on the basis of full cost accounting:
     Proved properties.............................................   2,516,801      1,996,590
     Unproved properties and properties under development,
       not being amortized.........................................     105,597         85,532
  Gas gathering, transmission and processing facilities............      25,809         23,357
  Other............................................................      36,938         24,045
                                                                     ----------     ----------
                                                                      2,685,145      2,129,524
  Less: Accumulated depreciation, depletion and amortization.......  (1,248,685)    (1,057,651)
                                                                     ----------     ----------
                                                                      1,436,460      1,071,873
OTHER ASSETS:
  Investments in affiliates........................................       5,677          5,053
  Deferred charges and other.......................................      27,330         27,923
                                                                     ----------     ----------
                                                                         33,007         32,976
                                                                     ----------     ----------
                                                                     $1,592,407     $1,218,704
                                                                     ----------     ----------
                                                                     ----------     ----------
</TABLE>
 
     The accompanying summary of significant accounting policies and notes
   to consolidated financial statements are integral parts of this statement.
 
                                       F-5
<PAGE>   34
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
                           CONSOLIDATED BALANCE SHEET
 
<TABLE>
<CAPTION>
                                                                           DECEMBER 31,
                                                                     -------------------------
                                                                        1993           1992
                                                                     ----------     ----------
                                                                          (IN THOUSANDS)
<S>                                                                  <C>            <C>
                     LIABILITIES AND SHAREHOLDERS' EQUITY
CURRENT LIABILITIES:
  Current maturities of long-term debt.............................  $    9,017     $    1,103
  Current portion of advances on gas contracts.....................          --         20,142
  Accounts payable.................................................     118,447         82,064
  Accrued operating expense........................................      17,371         16,446
  Accrued income taxes.............................................       6,048          5,158
  Accrued interest.................................................       2,010          9,011
  Accrued exploration and development..............................      15,083          7,979
  Accrued compensation and benefits................................       9,170          7,405
  Other accrued expenses...........................................       8,244          8,322
                                                                     ----------     ----------
                                                                        185,390        157,630
                                                                     ----------     ----------
LONG-TERM DEBT.....................................................     453,009        454,373
                                                                     ----------     ----------
DEFERRED CREDITS AND OTHER NONCURRENT LIABILITIES:
  Income taxes.....................................................     128,554         83,220
  Advances on gas contracts........................................       3,914          3,039
  Future operating costs for royalty interest sold.................      10,389         13,222
  Other............................................................      25,297         32,011
                                                                     ----------     ----------
                                                                        168,154        131,492
                                                                     ----------     ----------
COMMITMENTS AND CONTINGENCIES (Note 8)

SHAREHOLDERS' EQUITY:
  Common stock, $1.25 par, 215,000,000 shares authorized,
     62,334,241 and 48,304,154 shares issued, respectively.........      77,918         60,380
  Paid-in capital..................................................     540,155        269,296
  Retained earnings................................................     182,195        160,763
  Treasury stock, at cost, 1,248,827 and 1,367,914 shares,
     respectively..................................................     (14,414)       (15,230)
                                                                     ----------     ----------
                                                                        785,854        475,209
                                                                     ----------     ----------
                                                                     $1,592,407     $1,218,704
                                                                     ----------     ----------
                                                                     ----------     ----------
</TABLE>
 
     The accompanying summary of significant accounting policies and notes
   to consolidated financial statements are integral parts of this statement.
 
                                       F-6
<PAGE>   35
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
                 STATEMENT OF CONSOLIDATED SHAREHOLDERS' EQUITY
 
<TABLE>
<CAPTION>
                                                                                            TOTAL
                                     COMMON      PAID-IN      RETAINED     TREASURY     SHAREHOLDERS'
                                      STOCK      CAPITAL      EARNINGS      STOCK          EQUITY
                                     -------     --------     --------     --------     -------------
                                                              (IN THOUSANDS)
<S>                                  <C>         <C>          <C>          <C>          <C>
BALANCE, DECEMBER 31, 1990.........  $57,727     $241,272     $104,329     $(16,548)      $ 386,780
  Net income.......................       --           --       34,615           --          34,615
  Dividends ($.28 per common
     share)........................       --           --      (12,822)          --         (12,822)
  Common shares issued.............    2,576       27,945           --           --          30,521
  Treasury shares issued...........       --         (251)          --        1,113             862
  Treasury shares purchased........       --           --           --          (15)            (15)
                                     -------     --------     --------     --------     -------------
BALANCE, DECEMBER 31, 1991.........   60,303      268,966      126,122      (15,450)        439,941
  Net income.......................       --           --       47,776           --          47,776
  Dividends ($.28 per common
     share)........................       --           --      (13,135)          --         (13,135)
  Common shares issued.............       77          382           --           --             459
  Treasury shares issued...........       --          (52)          --          223             171
  Treasury shares purchased........       --           --           --           (3)             (3)
                                     -------     --------     --------     --------     -------------
BALANCE, DECEMBER 31, 1992.........   60,380      269,296      160,763      (15,230)        475,209
  Net income.......................       --           --       37,334           --          37,334
  Dividends ($.28 per common
     share)........................       --           --      (15,902)          --         (15,902)
  Common shares issued.............   17,538      270,859           --           --         288,397
  Treasury shares issued...........       --           --           --          841             841
  Treasury shares purchased........       --           --           --          (25)            (25)
                                     -------     --------     --------     --------     -------------
BALANCE, DECEMBER 31, 1993.........  $77,918     $540,155     $182,195     $(14,414)      $ 785,854
                                     -------     --------     --------     --------     -------------
                                     -------     --------     --------     --------     -------------
</TABLE>
 
     The accompanying summary of significant accounting policies and notes
   to consolidated financial statements are integral parts of this statement.
 
                                       F-7
<PAGE>   36
 
                   SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
PRINCIPLES OF CONSOLIDATION
 
     The accompanying consolidated financial statements include the accounts of
Apache Corporation (Apache or the Company) and its subsidiaries after
elimination of intercompany balances and transactions. The Company's interests
in oil and gas ventures and partnerships are proportionately consolidated.
Investments in incorporated affiliates in which Apache owns less than a
50-percent interest are accounted for using the equity method.
 
INVENTORIES
 
     Inventories consist principally of tubular goods and production equipment
stated at the lower of weighted average cost or market.
 
PROPERTY AND EQUIPMENT
 
     The Company uses the full cost method of accounting for its investment in
oil and gas properties. Under this method, the Company capitalizes all
acquisition, exploration and development costs incurred for the purpose of
finding oil and gas reserves, including salaries, benefits and other internal
costs directly attributable to these activities. Apache capitalized $25.4
million, $24 million and $24.9 million of internal costs in 1993, 1992 and 1991,
respectively. Interest costs related to development projects in progress for an
extended period are also capitalized to oil and gas properties. Costs associated
with production and general corporate activities are expensed in the period
incurred. Unless significant reserves are involved, proceeds from the sale of
oil and gas properties are accounted for as reductions to capitalized costs and
gains or losses are not recognized.
 
     Apache computes the provision for depreciation, depletion and amortization
(DD&A) of oil and gas properties on a quarterly basis using the future gross
revenue method. The quarterly provision is calculated on a country-by-country
basis by multiplying the quarter's oil and gas revenues by an overall rate which
is determined by dividing the unamortized cost of proved oil and gas properties
by the total estimated future oil and gas revenues from proved reserves. The
amortizable base includes estimated dismantlement, restoration and abandonment
costs, net of estimated salvage values. These costs are generally estimated by
engineers employed by Apache.
 
     Apache limits, on a country-by-country basis, the capitalized costs of
proved oil and gas properties, net of accumulated DD&A, to the estimated future
net cash flows from proved oil and gas reserves, net of related tax effects,
discounted at 10 percent. If capitalized costs exceed this limit, the excess is
charged to DD&A expense. The Company has not recorded any write downs of
capitalized costs in any of the periods presented.
 
     The costs of certain unevaluated domestic and foreign leasehold acreage and
wells in the process of being drilled are not being amortized. Costs not being
amortized are periodically assessed for possible impairments or reductions in
value. If a reduction in value has occurred, costs being amortized are increased
or a charge is made against earnings for those international operations where a
reserve base is not yet established.
 
     Buildings, equipment, gas gathering, transmission and processing facilities
are depreciated on a straight-line basis over the estimated useful lives of the
assets which range from three to 20 years. Accumulated depreciation for these
assets totaled $17.2 million and $19.9 million at December 31, 1993 and 1992,
respectively.
 
ACCOUNTS PAYABLE
 
     Included in accounts payable at December 31, 1993 and 1992, are liabilities
of approximately $38.6 million and $27.5 million, respectively, representing the
amount by which checks issued but not presented to the Company's banks for
collection exceeded balances in bank accounts.
 
                                       F-8
<PAGE>   37
 
           SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES -- (CONTINUED)
 
ADVANCES ON GAS CONTRACTS
 
     Advances represent payments received from purchasers of natural gas under
provisions of take-or-pay contracts. Such advances will be recognized as income
if gas production, under the terms of the contracts, is applied against the
advances. In the event advances are not reduced by gas production, the advances
will be repaid under the terms of the contracts.
 
REVENUE RECOGNITION
 
     Apache uses the sales method of accounting for natural gas revenues. Under
this method, revenues are recognized based on actual volumes of gas sold to
purchasers. The volumes of gas sold may differ from the volumes to which Apache
is entitled based on its interests in the properties. Differences between
volumes sold and volumes based on entitlements create gas imbalances which are
generally reflected as adjustments to reported gas reserves and future cash
flows. Adjustments for gas imbalances totaled less than three percent of
Apache's proved gas reserves at December 31, 1993. Revenue is deferred and a
liability is recorded for those properties where the estimated remaining
reserves will not be sufficient to enable the underproduced owner to recoup
their entitled share through production.
 
HEDGING ACTIVITIES
 
     The Company periodically may buy and sell commodity derivative contracts in
order to either fix or support oil and gas prices at targeted levels and to
minimize the impact of price fluctuations. Gains or losses on these hedging
activities are recognized in revenues for the periods production was hedged.
Estimates of future liabilities and receivables applicable to oil and gas
commodity hedges are reflected in future cash flows from proved reserves with
such estimates based on prices in effect as of the date of the reserve report.
 
     The Company also purchases interest rate caps and enters into interest rate
swap transactions. Gains or losses on these activities are recognized in
interest expense in the period hedged by the agreements.
 
INCOME TAXES
 
     The Company provides deferred income taxes for all temporary differences
between financial and income tax reporting. Effective January 1, 1993, the
Company implemented the provisions of Statement of Financial Accounting
Standards (SFAS) No. 109, "Accounting for Income Taxes." Under the liability
method specified by SFAS No. 109, deferred taxes are determined based on the
estimated future tax effect of differences between the financial statement and
tax bases of assets and liabilities given the provisions of enacted tax laws.
The adoption of SFAS No. 109 did not have a material effect on the accompanying
financial statements.
 
FOREIGN CURRENCY TRANSLATION
 
     The U.S. dollar is considered the functional currency for each of the
Company's international operations. Translation gains or losses are recognized
in current net income and were not material in any of the periods presented.
 
INCOME PER COMMON SHARE
 
     Income per common share amounts are based on the weighted average number of
common shares outstanding. The effects of common equivalent shares, which would
include shares from the assumed conversion of the 3.93-percent notes, were
immaterial or were not dilutive for all of the periods presented. Furthermore,
fully diluted earnings per share, assuming conversion of certain of the
convertible debentures, was not significantly different than primary earnings
per share for all periods presented.
 
STATEMENT OF CONSOLIDATED CASH FLOWS
 
     The Company considers all highly liquid debt instruments purchased with an
original maturity of three months or less to be cash equivalents. These
investments are carried at cost which approximates market.
 
                                       F-9
<PAGE>   38
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
1. ACQUISITIONS AND DIVESTITURES
 
     In 1993, Apache purchased the stock of Hadson Energy Resources Corporation
(HERC) for approximately $98 million through a series of privately negotiated
transactions and a merger offer approved by a majority of HERC stockholders. In
July 1993, Apache completed the purchase of 4.2 million shares of HERC's
outstanding common stock, or approximately 68 percent of the HERC common stock
then outstanding, for $59.2 million. The Company agreed to pay an additional
$1.00 per share ($4.2 million) to the selling stockholders if the Company
increased its ownership in HERC to 80 percent or more. Pursuant to a merger
agreement approved by HERC stockholders on November 12, 1993, HERC stockholders
other than Apache could elect to receive, for each share of HERC common stock,
either $15 in cash or .574 share of Apache common stock. Through the end of
1993, Apache issued 305,003 shares of Apache common stock valued at $7.8 million
and paid a total of $76.1 million to former stockholders of HERC as
consideration for the merger. At December 31, 1993, Apache reflected a liability
of $13.9 million accrued for HERC shares which had not yet been surrendered to
Apache.
 
     Also in 1993, Apache entered into two agreements to purchase 104 Bcfe of
proved reserves from Hall-Houston Oil Company (Hall-Houston) for an aggregate
consideration of $113.7 million. In June 1993, Apache closed the first of the
two transactions, paying $29.3 million for Hall-Houston's interest in Mustang
Island Blocks 787 and 805. The second transaction, encompassing substantially
all of Hall-Houston's producing properties in the Gulf of Mexico for an
additional $84.4 million, was completed in August 1993. The acquisitions
included interests in 63 producing fields and 12 fields under development or
awaiting pipeline connections.
 
     Effective November 1, 1992, Apache completed the acquisition of Shell
Offshore Inc.'s 93-percent working interest in Matagorda Island Blocks 681 and
682 in the Gulf of Mexico. Apache paid $57.4 million for properties, which
included 14 miles of gathering lines and approximately 11,500 net acres of
leases.
 
     Effective May 1, 1992, Apache sold its 31.67-percent general partnership
interest in Natural Gas Clearinghouse (NGC) for $50.7 million. The Company
recognized a gain on the sale of approximately $28.3 million or $18.5 million
after tax.
 
     On July 1, 1991, Apache completed its acquisition of MW Petroleum
Corporation (MW), a wholly owned subsidiary of Amoco Production Company (Amoco).
Apache paid $511.4 million in cash, assumed net liabilities of approximately
$4.1 million and issued two million shares of Apache common stock valued at $30
million. At the time of closing, MW had estimated net proved reserves of
approximately 63 million barrels of oil and 288 Bcf of natural gas.
 
     As part of a plan to reduce debt from the MW acquisition, Apache sold
approximately 1,700 oil and gas properties in 1991 for $157 million. Apache
recorded $17 million of these proceeds as a deferred credit on its balance sheet
for future operating costs associated with gas production relating to the sale
of an overriding royalty interest.
 
     All of the above acquisitions have been accounted for using the purchase
method of accounting and have been included in the financial statements of
Apache since the dates of acquisition. The following unaudited pro forma summary
of the Company's consolidated results of operations for 1993 was prepared as if
the Hall-Houston and HERC acquisitions occurred as of January 1, 1993. The pro
forma data for 1992 assumes that
 
                                      F-10
<PAGE>   39
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
the Hall-Houston and HERC acquisitions and the NGC sale occurred as of or prior
to January 1, 1992. The pro forma data is based on numerous assumptions and is
not necessarily indicative of future operations.
 
<TABLE>
<CAPTION>
                                                                     FOR THE YEAR ENDED
                                                                        DECEMBER 31,
                                                                   -----------------------
    (UNAUDITED)                                                      1993           1992
    -----------                                                    --------       --------
                                                                    (IN THOUSANDS, EXCEPT
                                                                       PER SHARE DATA)
    <S>                                                            <C>            <C>
    Oil and gas production revenues..............................  $481,754       $472,914
    Total revenues...............................................   515,071        507,502
    Net income...................................................    36,970         27,016
    Income per share.............................................  $    .69       $    .57
    Weighted average shares outstanding..........................    53,812         47,212
</TABLE>
 
2. INVESTMENTS IN AFFILIATES
 
     At December 31, 1993, Apache owned approximately 20 percent of the
outstanding common stock of Key Production Company (Key). Until May 1, 1992,
Apache also owned 31.67 percent of NGC. (See Note 1.) Apache's investments in
affiliates at December 31, 1993 and 1992 are presented below.
 
<TABLE>
<CAPTION>
                                                                             DECEMBER 31,
                                                                         ---------------------
                                                                          1993           1992
                                                                         ------         ------
                                                                            (IN THOUSANDS)
<S>                                                                      <C>            <C>
Investments:
  Key Production Company...............................................  $5,677         $5,053
</TABLE>
 
     The Company recorded dividends and distributions totaling $3.8 million and
$5 million from affiliates in 1992 and 1991, respectively. No dividends were
received in 1993. Earnings from affiliates for each of the last three years is
presented below.
 
<TABLE>
<CAPTION>
                                                                FOR THE YEAR ENDED DECEMBER 31,
                                                                -------------------------------
                                                                 1993        1992         1991
                                                                 ----       ------       ------
                                                                         (IN THOUSANDS)
<S>                                                              <C>        <C>          <C>
Income from affiliates:
  Key Production Company.......................................  $624       $    4       $  486
  Natural Gas Clearinghouse....................................    --        2,691        8,156
                                                                 ----       ------       ------
                                                                 $624       $2,695       $8,642
                                                                 ----       ------       ------
                                                                 ----       ------       ------
</TABLE>
 
                                      F-11
<PAGE>   40
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
3. DEBT
 
LONG-TERM DEBT
 
<TABLE>
<CAPTION>
                                                                            DECEMBER 31,
                                                                       -----------------------
                                                                         1993           1992
                                                                       --------       --------
<S>                                                                    <C>            <C>
                                                                           (IN THOUSANDS)
Senior debt:
  Apache bank facility...............................................  $240,000       $115,000
  9.25-percent notes due 2002, net of discount.......................    99,688         99,665
  3.93-percent convertible notes due 1997............................    75,000         75,000
                                                                       --------       --------
                                                                        414,688        289,665
                                                                       --------       --------
Subordinated debt:
  7 1/2-percent convertible debentures due 2000......................        --        150,000
  9-percent convertible debentures due 2001, net of discount.........        --          6,431
                                                                       --------       --------
                                                                             --        156,431
                                                                       --------       --------
Other obligations:
  HERC bank facility.................................................    19,550             --
  HEL acceptance facility............................................    22,000             --
  Share of offshore partnership financing............................     4,636          7,195
  1986 limited recourse notes........................................     1,115          1,650
  Other notes payable................................................        37            535
                                                                       --------       --------
                                                                         47,338          9,380
                                                                       --------       --------
Total debt...........................................................   462,026        455,476
Less: Current maturities.............................................    (9,017)        (1,103)
                                                                       --------       --------
Long-term debt.......................................................  $453,009       $454,373
                                                                       --------       --------
                                                                       --------       --------
</TABLE>
 
     The Company's debt at December 31, 1993, was structured in two parts:
 
          (1) Senior financing consisting of the Apache bank facility, the
              9.25-percent notes and the 3.93-percent convertible notes;
 
          (2) Credit facilities assumed in the HERC acquisition and other
              amortizing obligations primarily related to partnership
              activities.
 
     Apache's senior arrangements are subject to an intercreditor agreement
under which each obligation is secured by the MW common stock held by the
Company. If the administrative agent under the bank facility elects to access
this collateral, lenders under these three obligations would participate prorata
in the proceeds of any liquidation. There is no other collateral.
 
     The Apache Bank Facility is a $400-million revolving agreement funded by a
group of banks. The maximum amount available is subject to periodic
redetermination of a borrowing base, determined solely at the discretion of the
banks, predicated upon the Company's oil and gas reserve values and forecast
rate of production. As of December 31, 1993, the borrowing base was $400 million
and the principal amount outstanding was $240 million. The next redetermination
of the borrowing base is scheduled for April 1994. This bank facility matures on
April 30, 1996, and the agreement provides for perpetual one-year extensions as
requested year-by-year by the Company and subject to the approval of the banks.
Interest on amounts borrowed is charged at the First National Bank of Chicago's
base rate or at London Interbank Offered Rates (LIBOR) plus .75 percent, at the
Company's option. The Company pays a .25-percent fee on the average unused
portion of the borrowing base in return for the banks' obligation to maintain
the availability of those funds.
 
                                      F-12
<PAGE>   41
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
     The 9.25-percent Notes were issued in May 1992 and will mature in June
2002. The notes are not redeemable prior to maturity.
 
     The 3.93-percent Convertible Notes were issued in December 1992. They
mature in November 1997 and are not redeemable prior to maturity. They are
convertible into Apache common stock at $27 per share, subject to adjustment
under certain circumstances.
 
     The indentures for the two note issues impose substantially similar
obligations on the Company including limits on the Company's ability to incur
debt secured by certain liens and on its ability to enter into certain sale and
leaseback transactions. Upon certain changes in control of the Company, both
issues are subject to mandatory repurchase (or conversion at the option of the
noteholders in the case of the 3.93-percent notes).
 
     In addition, financial covenants of the bank facility and the 3.93-percent
notes require the Company to maintain minimum consolidated tangible net worth of
$555 million, as of December 31, 1993, which will be adjusted quarterly for
subsequent earnings and securities transactions and to maintain a ratio of (i)
earnings before interest expense, state and federal taxes and depreciation to
(ii) consolidated interest expense of not less than 3.7:1 for the banks and
3.5:1 for the lenders under the 3.93-percent notes. The banks also require the
Company to maintain a ratio of (i) consolidated current assets, plus the unused
portion of the facility to (ii) consolidated current liabilities, excluding
current maturities of the facility, of not less than 1:1.
 
     In conjunction with the HERC acquisition, Apache assumed two bank credit
agreements outstanding at the time it acquired a majority interest in HERC.
Recourse under these credit facilities is limited to assets acquired from HERC.
 
     The HERC Bank Facility is a $60 million revolving credit agreement with
Bank of Montreal (BMO). The agreement established a credit facility comprised of
a three-year revolving credit loan which matures October 31, 1995, and a term
loan equal to the balance outstanding on the revolving credit loan at maturity.
The term loan is repayable in five equal quarterly installments commencing
January 31, 1996, with any remaining balance due at maturity on January 31,
1997. Amounts available for borrowing are limited based on certain formulas
related to oil and gas reserves. Interest is payable at prime or certain other
fixed rate options (LIBOR plus one percent or certificate of deposit rate plus
1.25 percent). The interest rate in effect at December 31, 1993, was 4.875
percent. The Company pays a commitment fee of .375 percent per annum on the
unused portion of the borrowing base. At December 31, 1993, the amount available
for borrowing under the agreement was $26 million, of which $19.6 million was
outstanding.
 
     The HEL Acceptance Facility is a separate credit facility with BMO which
provided funding for the construction of an offshore gas gathering project by
Hadson Energy Limited (HEL), a wholly-owned subsidiary of HERC, and the
refinancing of an existing HEL credit facility. A total of $32 million was
advanced under the agreement, of which $22 million was outstanding at December
31, 1993. The loan is repayable in 16 equal quarterly installments which
commenced October 12, 1992, and bears interest at the discount rate for U.S.
dollar bankers' acceptances plus a 1.3-percent stamping fee. The stamping fee
changes to 1.125 percent effective January 1, 1994.
 
     The HERC agreements contain certain covenants which restrict, with respect
to HERC, the amount of additional borrowings, the payment of dividends, and the
purchase and disposition of assets. The facility is secured by the stock of
certain wholly-owned subsidiaries of HERC.
 
     The 7 1/2 percent Convertible Subordinated Debentures, issued in 1990 and
scheduled to mature in 2000, were converted to equity in September 1993 with the
issuance of approximately 7.8 million shares of Apache common stock at $19.18
per share.
 
     The 9-percent Convertible Subordinated Debentures, scheduled to mature in
2001, were redeemed by Apache July 15, 1993, for $7 million.
 
                                      F-13
<PAGE>   42
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
     In July 1992, the Company arranged a $35 million banking facility on behalf
of the Apache Offshore Investment Partnership. At December 31, 1993, $17.4
million was outstanding on the facility, of which Apache's share was $4.6
million. Availability under this facility is reduced quarterly by $1.5 million.
 
     To finance property acquisitions made during 1986, Apache (through a former
partnership) placed certain Limited Recourse Notes due 2031. These notes are
secured by interests in the acquired properties and bear interest at eight
percent.
 
     The Company has entered into various Interest Rate Swap Agreements. On
December 31, 1993, the Company's weighted average interest rate on its total
long-term debt was 5.2 percent. When all existing interest rate swaps are
factored in, the effective rate at December 31, 1993, was five percent. An open
interest rate swap agreement against the $100 million 9.25-percent notes was
terminated in February 1994.
 
     As of December 31, 1993, the Company had approximately $14 million of
unamortized costs associated with its various debt obligations. These costs are
reflected as deferred charges and other in the accompanying balance sheet and
are being amortized over the life of the related debt.
 
AGGREGATE MATURITIES OF DEBT
 
<TABLE>
<CAPTION>
                                                                 (IN THOUSANDS)
                <S>                                              <C>
                1994.............................................    $  9,017
                1995.............................................      27,653
                1996.............................................     246,243
                1997.............................................      76,602
                1998.............................................       1,602
                Thereafter.......................................     100,909
                                                                 --------------
                                                                    $462,026
                                                                 --------------
                                                                 --------------
</TABLE>
 
4. INCOME TAXES
 
     As discussed in the Summary of Significant Accounting Policies, effective
January 1, 1993, the Company adopted SFAS No. 109 "Accounting for Income Taxes."
The cumulative effect of adopting this statement was not material to the
accompanying financial statements.
 
     The total provision for income taxes consists of the following:
 
<TABLE>
<CAPTION>
                                                      FOR THE YEAR ENDED DECEMBER 31,
                                                    -----------------------------------
                                                     1993          1992          1991
                                                    -------       -------       -------
        <S>                                         <C>           <C>           <C>
                                                              (IN THOUSANDS)
        Current taxes:
          Federal.................................  $    --       $ 8,949       $ 9,438
          State...................................       --           856            85
          Foreign.................................       --           110           377
        Deferred taxes............................   20,571        14,034         4,234
                                                    -------       -------       -------
                                                    $20,571       $23,949       $14,134
                                                    -------       -------       -------
                                                    -------       -------       -------
</TABLE>
 
     The 1993 provision for income taxes includes a $3.5 million charge for the
change in federal statutory rates from 34 percent to 35 percent enacted under
the Omnibus Budget Reconciliation Act of 1993 (OBRA).
 
     The 1992 and 1991 provision for income taxes included approximately $1.2
million and $4.6 million, respectively, for Apache's tax provision related to
its share of NGC's partnership income. This provision was reflected as a
reduction of equity in income of affiliates in the Statement of Consolidated
Income.
 
                                      F-14
<PAGE>   43
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
     A reconciliation of the federal statutory income tax rates to the effective
rate is as follows:
 
<TABLE>
<CAPTION>
                                                                         FOR THE YEAR ENDED
                                                                            DECEMBER 31,
                                                                     --------------------------
                                                                     1993       1992       1991
                                                                     ----       ----       ----
<S>                                                                  <C>        <C>        <C>
Statutory income tax rate..........................................  35.0%      34.0%      34.0%
State income tax, less federal benefit.............................   1.9        2.0        1.9
Tax benefit of state net operating loss carryforwards not
  previously recognized............................................    --         --       (2.1)
Reversal of prior period timing differences at rates in excess of
  current statutory rates..........................................    --       (1.8)      (3.4)
Utilization of federal income tax credits..........................  (3.7)        --         --
Increase in corporate income tax rate provided for in OBRA.........   6.0         --         --
All other, net.....................................................  (3.3)       (.8)      (1.4)
                                                                     ----       ----       ----
                                                                     35.9%      33.4%      29.0%
                                                                     ----       ----       ----
                                                                     ----       ----       ----
</TABLE>
 
     Deferred taxes are determined based on the estimated future tax effects of
differences between the financial statement and tax bases of assets and
liabilities using the provisions of enacted tax laws. The net deferred tax
liability as of December 31, 1993, is comprised of the following:
 
<TABLE>
<CAPTION>
                                                                              DECEMBER 31,
                                                                                  1993
                                                                              -------------
                                                                                   (IN
                                                                               THOUSANDS)
    <S>                                                                       <C>
    Deferred tax assets:
      Accrued expenses......................................................    $  (8,696)
      Deferred income.......................................................       (3,287)
      Deferred compensation.................................................       (2,380)
      Net operating loss carryforwards......................................      (18,392)
      Alternative minimum tax credits.......................................      (20,734)
      Other.................................................................       (4,238)
                                                                              -------------
         Total deferred tax assets..........................................    $ (57,727)
                                                                              -------------
    Deferred tax liabilities:
      Depreciation, depletion and amortization..............................    $ 181,981
      Other.................................................................        4,300
                                                                              -------------
         Total deferred tax liabilities.....................................    $ 186,281
                                                                              -------------
    Deferred income tax (asset) liability...................................    $ 128,554
                                                                              -------------
                                                                              -------------
</TABLE>
 
     No valuation allowance has been recorded against deferred tax assets at
December 31, 1993.
 
     U.S. deferred taxes have not been provided on foreign earnings totaling $29
million which are permanently reinvested abroad.
 
     At December 31, 1993, the Company has U.S. federal net operating loss
carryforwards of $30 million and statutory depletion carryforwards of $6.6
million available to reduce future U.S. federal taxable income. The net
operating loss carryforwards will expire unless otherwise utilized, beginning in
1995. The statutory depletion may be carried forward indefinitely. The Company
has alternative minimum tax (AMT) credit carryforwards of $20.7 million. AMT
credits can be carried forward indefinitely and may only be used to reduce
regular tax liabilities in excess of AMT liabilities. The Company also has
foreign net operating loss carryforwards of $10.7 million and foreign capital
loss carryforwards of $2.4 million which may be carried forward indefinitely.
These may be utilized to reduce future foreign taxable income.
 
                                      F-15
<PAGE>   44
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
5. CAPITAL STOCK
 
COMMON STOCK OUTSTANDING
 
<TABLE>
<CAPTION>
                                                   1993            1992            1991
                                                 ---------       ---------       ---------
    <S>                                          <C>             <C>             <C>
    Balance, beginning of year.................  46,936,240      46,854,794      44,694,410
    Treasury shares issued (acquired), net.....    119,087          19,791          99,084
    Shares issued:
      Acquisition of MW........................         --              --       2,000,000
      Public offering..........................  5,795,000              --              --
      Acquisition of HERC......................    305,003              --              --
      Conversion of 7 1/2-percent debentures...  7,816,453              --              --
      Stock options............................    113,631          61,655          61,300
                                                 ---------       ---------       ---------
    Balance, end of year.......................  61,085,414      46,936,240      46,854,794
                                                 ---------       ---------       ---------
                                                 ---------       ---------       ---------
</TABLE>
 
     Public Offering -- In March 1993, Apache completed the public offering of
approximately 5.8 million shares of Apache common stock for net proceeds of
$131.8 million.
 
     Stock Option Plans -- At December 31, 1993, common shares totaling
2,031,650 were reserved for issuance under stock option plans for officers and
key employees. The outstanding options expire at various dates through 2003 and
are exercisable at prices ranging from $7.31 to $26.62 with an aggregate
exercise price of $17 million. The following table summarizes the changes in
stock options for the year and the number of common shares available for grant
at year end.
 
<TABLE>
<CAPTION>
                                                      1993           1992           1991
                                                    --------       --------       --------
    <S>                                             <C>            <C>            <C>
    Outstanding, beginning of year................   846,550        666,650        507,250
    Exercised ($7.313 to $19.625).................  (115,200)       (94,050)      (161,300)
    Granted ($13.375 to $26.625)..................   264,600        326,700        361,000
    Cancelled or expired ($13.75 to $26.625)......   (86,075)       (52,750)       (40,300)
                                                    --------       --------       --------
    Outstanding, end of year......................   909,875        846,550        666,650
                                                    --------       --------       --------
                                                    --------       --------       --------
    Available for grant, end of year..............  1,121,775      1,300,300        84,050
                                                    --------       --------       --------
                                                    --------       --------       --------
</TABLE>
 
     Rights to Purchase Common Stock -- In 1986, the Company declared a dividend
of one right to purchase one share of common stock at $50 per share (subject to
adjustment) on each outstanding share of common stock (the Rights). The Rights
are exercisable only if certain persons or groups acquire 20 percent or more of
the common stock or commence a tender offer for 30 percent or more of the common
stock. If the Company engages in certain business combinations or a 20-percent
stockholder engages in certain transactions with the Company, the Rights become
exercisable for Apache common stock or common stock of the corporation acquiring
the Company (as the case may be) at 50 percent of the then-market price. Any
Rights that are or were beneficially owned by a person who has acquired 20
percent or more of the common stock and who engages in certain transactions or
realizes the benefits of certain transactions with the Company will become void.
The Company may redeem the Rights at a specified price at any time until 10
business days after public announcement that a person has acquired 20 percent or
more of the outstanding shares of common stock. The Rights will expire on
January 31, 1996, unless earlier redeemed by the Company. Unless the Rights have
been previously redeemed, all shares of common stock issued by the Company will
include Rights.
 
     Preferred Stock -- The Company has authorized five million shares of no par
preferred stock. None are outstanding.
 
                                      F-16
<PAGE>   45
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
6. NONCASH INVESTING AND FINANCING ACTIVITIES
 
     A summary of noncash investing and financing activities is presented below.
 
     In 1993, Apache purchased HERC for approximately $98 million in cash and
Apache common stock. The accompanying financial statements included the
following attributable to the HERC acquisition:
 
<TABLE>
<CAPTION>
                                                                             (IN THOUSANDS)
    <S>                                                                         <C>
    Value of properties acquired, including gathering facilities.......         $159,996
    Common stock issued (305,003 shares)...............................           (7,777)
    Liability for HERC shares not surrendered as of December 31,
      1993.............................................................          (13,906)
    Cash paid, net of cash acquired....................................          (70,692)
                                                                                --------
      Net HERC liabilities added through consolidation.................         $ 67,621
                                                                                ========
</TABLE>
 
     In September 1993, Apache called for the redemption of its 7 1/2-percent
convertible subordinated debentures due 2000. Following receipt of the notice of
redemption, nearly all holders of the debentures elected to convert the
principal amount of their debentures into shares of Apache common stock. Holders
of less than one-tenth of one percent of the debentures elected to receive cash
($.1 million).
 
<TABLE>
<CAPTION>
                                                                             (IN THOUSANDS)
    <S>                                                                         <C>
    Long-term debt converted into common stock.........................         $149,900
    Unamortized debt issue costs charged to equity.....................           (2,686)
                                                                                --------
    Increase to shareholders' equity (common stock issued, 7.8 million
      shares)..........................................................         $147,214
                                                                                ========
</TABLE>
 
     On July 1, 1991, Apache completed the acquisition of MW for cash and Apache
common stock. Net liabilities assumed and the value of properties acquired are
subject to adjustments as specified in the stock purchase agreement.
 
<TABLE>
<CAPTION>
                                                                             (IN THOUSANDS)
    <S>                                                                         <C>
    Value of properties acquired.......................................         $545,515
    Common stock issued (two million shares)...........................          (30,000)
    Cash paid..........................................................         (511,373)
                                                                                --------
    Net liabilities assumed............................................         $  4,142
                                                                                ========
</TABLE>
 
     Cost incurred to complete the MW transaction and capitalized as part of the
acquisition totaled $13.1 million, of which $8.2 million had been paid in cash
and $4.9 million was accrued at December 31, 1991.
 
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
 
<TABLE>
<CAPTION>
                                                                FOR THE YEAR ENDED DECEMBER 31,
                                                                -------------------------------
                                                                 1993        1992        1991
                                                                -------     -------     -------
                                                                        (IN THOUSANDS)
<S>                                                             <C>         <C>         <C>
Cash paid (received) during the year for:
  Interest, net of amounts capitalized........................  $30,379     $27,373     $22,933
  Income taxes, net of refunds................................     (780)     19,642       4,216
</TABLE>
 
                                      F-17
<PAGE>   46
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
7. FINANCIAL INSTRUMENTS
 
     In accordance with SFAS No. 107, the table below sets forth the estimated
fair value of the Company's significant financial instruments.
 
<TABLE>
<CAPTION>
                                                                        DECEMBER 31, 1993
                                                                     -----------------------
                                                                     CARRYING     ESTIMATED
                                                                      AMOUNT      FAIR VALUE
                                                                     --------     ----------
                                                                         (IN THOUSANDS)
    <S>                                                              <C>           <C>
    Long-term debt:
      Bank debt....................................................  $281,550      $281,550
      9.25-percent notes due 2002..................................    99,688       100,311
      3.93-percent convertible notes due 1997......................    75,000        87,323
</TABLE>
 
     The fair value of the 9.25-percent notes was based on the quoted market
price for that issue. The fair value of the 3.93-percent notes was estimated
based on quotes obtained from private investment firms. The difference between
the carrying amount and the fair value of the Company's other debt obligations
was not significant.
 
     The fair value of the Amoco agreement discussed in Note 8 was not readily
determinable.
 
8. COMMITMENTS AND CONTINGENCIES
 
     Investment in Program Operations -- Prior to 1989, the Company organized
numerous oil and gas limited partnerships. At December 31, 1993, Apache was
contingently liable for $12.8 million of bank financing arranged by the Company
on behalf of the Apache Offshore Investment Partnership (See Note 3).
 
     As compensation for its services as general partner and operator, the
Company shares in oil and gas revenues, receives a management fee in accordance
with formulas described in each limited partnership agreement, and is reimbursed
for administrative, exploration and production expenses incurred on behalf of
the partnerships. These reimbursements ($.6 million, $4.8 million and $6 million
in the years 1993, 1992 and 1991, respectively) have been netted against
operating expenses in the accompanying financial statements.
 
     Litigation -- The Company is involved in litigation and is subject to
governmental and regulatory controls arising in the ordinary course of business.
It is the opinion of the Company's management that all claims and litigation
involving the Company are not likely to have a material adverse effect on its
financial position or results of operations.
 
     Environmental -- Apache, as an owner and operator of oil and gas
properties, is subject to various federal, state, local and foreign country laws
and regulations relating to discharge of materials into the environment. These
laws and regulations may, among other things, impose liability on the lessee
under an oil and gas lease for the cost of pollution clean-up resulting from
operations, subject the lessee to liability for pollution damages, require
suspension or cessation of operations in affected areas and impose restrictions
on the injection of liquids into subsurface aquifers that may contaminate ground
water. Apache maintains insurance coverages which it believes are customary in
the industry, although it is not fully insured against all environmental risks.
The Company is not aware of any environmental claims existing as of December 31,
1993, which would have a material impact on its financial position or results of
operations.
 
     Hedging -- In connection with the MW purchase in mid-1991, the Company and
Amoco entered into a hedging agreement. Under the terms of this agreement,
Apache would receive support payments in the event oil prices fell below
specified reference prices for any year during the two-year period ended June
30, 1993, and Amoco will receive payments in the event oil prices rose above
specified reference prices for any year during the eight-year period ending June
30, 1999, or in the event gas prices exceeded specified reference prices for any
year during the five-year period ending June 30, 1996.
 
                                      F-18
<PAGE>   47
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
     Oil price sharing payments due Amoco for the contract years ending June 30,
1994 through June 30, 1999, would be based on per barrel oil prices starting at
$24.75 and increasing to $33.13, while annual oil volumes would decline from
approximately 3.3 million barrels to 1.4 million barrels over the remaining
term. Gas price sharing payments would be based on gas volumes starting from
approximately 13.4 Bcf for the contract year ended June 30, 1994, and declining
to 10.5 Bcf in 1996, while the referenced gas price would increase from $2.18
per Mcf in 1994 to $2.68 per Mcf in the final year of the gas agreement. In the
event price sharing payments are due to Amoco, the volumes listed above would be
doubled until Amoco recovers its net payments to Apache ($5.8 million through
the contract year ended June 30, 1993) plus interest.
 
     International Commitments -- The Company, through its subsidiaries, has
acquired or has been conditionally or unconditionally granted exploration rights
in Australia, The Congo, Egypt and Indonesia. In order to comply with the
contracts and agreements granting these rights, the Company, through Apache
International, Inc., expects to expend approximately $15.8 million through 1997.
 
     Concentration of Credit Risk -- The proved gas reserves in the Carnarvon
Basin of Western Australia acquired in the HERC acquisition are dedicated for
sale to the State Energy Commission of Western Australia (SECWA) pursuant to a
long-term, take-or-pay contract. If for some reason the SECWA contract were
terminated, the Company might not be able to find other markets for the gas
produced from these fields. Although the Company considers such an occurrence
highly unlikely, the loss of the SECWA contract might force the Company to
write-down the value of these fields.
 
     Retirement and Deferred Compensation Plans -- The Company provides a 401(k)
retirement/savings plan and a non-qualified retirement/savings plan for
employees. These plans allow participating employees to elect to contribute up
to 10 percent of their salaries, with Apache making matching contributions up to
a maximum of six percent of each employee's salary. In addition, the Company
annually contributes a percentage of each participating employee's compensation,
as defined, to the plan. Vesting in the Company's contributions occurs at the
rate of 20 percent per year. Total expenses under these plans were $5 million,
$4.2 million and $3.8 million for 1993, 1992 and 1991, respectively.
 
     Gas Settlement Contracts -- In March 1991, Apache agreed to modify the
terms of certain contracts for the sale of natural gas and repay interest-free
advances earlier than contractually obligated in exchange for a non-refundable
cash payment, of which Apache's share was $5.6 million. Under the terms of the
contract settlement, the Company repaid $20.1 million of advances in January
1993. Advances received from purchasers under provisions of take-or-pay
contracts, if not recouped from production, are scheduled to be repaid in 1995.
Apache's share of outstanding take-or-pay advances totaled $3.9 million at
December 31, 1993.
 
     Lease Commitments -- The Company has leases for office space with varying
expiration dates through 2007. Net rental expense was $4.6 million, $5.7 million
and $4.1 million for 1993, 1992 and 1991, respectively.
 
     As of December 31, 1993, minimum rental commitments under long-term
operating leases are as follows:
 
<TABLE>
<CAPTION>
                                                                                       NET
                                                                                     MINIMUM
                                                          RENTAL       SUBLEASE      RENTAL
                                                        COMMITMENTS    RENTALS     COMMITMENTS
                                                        -----------    --------    -----------
                                                                   (IN THOUSANDS)
    <S>                                                 <C>            <C>         <C>
    1994................................................   $ 8,024     $ (2,090)     $ 5,934
    1995................................................     6,138       (1,311)       4,827
    1996................................................     5,907       (1,156)       4,751
    1997................................................     4,009         (482)       3,527
    1998................................................     3,705           --        3,705
    Thereafter..........................................    37,635           --       37,635
                                                        -----------    --------    -----------
                                                          $65,418      $ (5,039)     $60,379
                                                        -----------    --------    -----------
                                                        -----------    --------    -----------
</TABLE>
 
                                      F-19
<PAGE>   48
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
9. CUSTOMER INFORMATION
 
     NGC has been the sole purchaser of Apache's spot market gas production
since April 1990. Sales to NGC accounted for 36 percent, 27 percent and 36
percent of the Company's oil and gas revenues in 1993, 1992 and 1991,
respectively. Sales to Amoco represented 11 percent, 27 percent and 17 percent
of the Company's 1993, 1992 and 1991 oil and gas revenues, respectively.
 
     The Company's revenues are derived principally from uncollateralized sales
to customers in the oil and gas industry; therefore, customers may be similarly
affected by changes in economic and other conditions within the industry. Apache
has not experienced significant credit losses on such sales.
 
                                      F-20
<PAGE>   49
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
                      SUPPLEMENTAL OIL AND GAS DISCLOSURES
                                  (UNAUDITED)
     Oil and Gas Operations -- The following table sets forth revenue and direct
cost information relating to the Company's oil and gas exploration and
production activities. Apache has no long-term supply or purchase agreements
with governments or authorities under which it acts as producer.
 
<TABLE>
<CAPTION>
                                                              FOR THE YEAR ENDED DECEMBER 31,
                                                             ----------------------------------
                                                               1993         1992         1991
                                                             --------     --------     --------
                                                                       (IN THOUSANDS)
<S>                                                          <C>          <C>          <C>
UNITED STATES
Oil and gas revenues.......................................  $421,845     $386,533     $311,487
                                                             --------     --------     --------
Operating costs:
  Depreciation, depletion and amortization.................   163,285      149,909      127,156
  Lease operating..........................................   102,830       99,934       73,163
  Production taxes.........................................    21,218       23,803       17,652
  Income tax...............................................    50,035       39,045       30,312
                                                             --------     --------     --------
                                                              337,368      312,691      248,283
                                                             --------     --------     --------
Results of operations......................................  $ 84,477     $ 73,842     $ 63,204
                                                             --------     --------     --------
                                                             --------     --------     --------
Amortization rate..........................................      38.7%        38.8%        40.8%
                                                             --------     --------     --------
                                                             --------     --------     --------
FOREIGN
Oil and gas revenues.......................................  $ 15,497     $  8,019     $  4,575
                                                             --------     --------     --------
Operating costs:
  Depreciation, depletion and amortization.................     7,214        3,883        1,992
  Impairments..............................................    23,200       12,000        3,600
  Lease operating..........................................     3,456        1,600          699
  Production taxes.........................................       609           --           --
  Income tax (benefit).....................................    (6,264)      (3,181)        (446)
                                                             --------     --------     --------
                                                               28,215       14,302        5,845
                                                             --------     --------     --------
Results of operations......................................  $(12,718)    $ (6,283)    $ (1,270)
                                                             --------     --------     --------
                                                             --------     --------     --------
Amortization rate-recurring................................      46.6%        48.7%        43.1%
                                                             --------     --------     --------
                                                             --------     --------     --------
TOTAL
Oil and gas revenues.......................................  $437,342     $394,552     $316,062
                                                             --------     --------     --------
Operating costs:
  Depreciation, depletion and amortization.................   170,499      153,792      129,148
  Impairments..............................................    23,200       12,000        3,600
  Lease operating..........................................   106,286      101,534       73,862
  Production taxes.........................................    21,827       23,803       17,652
  Income tax...............................................    43,771       35,864       29,866
                                                             --------     --------     --------
                                                              365,583      326,993      254,128
                                                             --------     --------     --------
Results of operations......................................  $ 71,759     $ 67,559     $ 61,934
                                                             --------     --------     --------
                                                             --------     --------     --------
</TABLE>
 
                                      F-21
<PAGE>   50
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
              SUPPLEMENTAL OIL AND GAS DISCLOSURES -- (CONTINUED)
                                  (UNAUDITED)
 
     Costs Not Being Amortized -- The following table sets forth a summary of
oil and gas property costs not being amortized at December 31, 1993, by the year
in which such costs were incurred.
 
<TABLE>
<CAPTION>
                                                                                           1990 AND
                                            TOTAL        1993        1992       1991        PRIOR
                                           --------     -------     ------     -------     --------
                                                                (IN THOUSANDS)
<S>                                        <C>          <C>         <C>        <C>         <C>
Leasehold and seismic....................  $ 82,358     $34,472     $3,739     $37,935      $6,212
Exploration and development..............     4,634       4,634         --          --          --
International............................    18,605      18,593         12          --          --
                                           --------     -------     ------     -------     --------
          Total..........................  $105,597     $57,699     $3,751     $37,935      $6,212
                                           --------     -------     ------     -------     --------
                                           --------     -------     ------     -------     --------
</TABLE>
 
     Capitalized Costs Incurred -- The following table sets forth the
capitalized costs incurred in oil and gas producing activities.
 
<TABLE>
<CAPTION>
                                                              FOR THE YEAR ENDED DECEMBER 31,
                                                            -----------------------------------
                                                              1993         1992         1991
                                                            --------     --------     ---------
<S>                                                         <C>          <C>          <C>
                                                                      (IN THOUSANDS)
UNITED STATES
Acquisition of proved properties..........................  $242,659     $ 62,955     $ 561,780
Acquisition of unproved properties........................    14,342        8,226         6,294
Exploration...............................................    16,979       17,074        17,523
Development...............................................   164,839       93,277        74,469
Capitalized interest......................................     4,764        6,035         4,967
Property sales............................................    (3,255)     (37,167)     (157,018)
Future operating costs for royalty interest sold..........        --           --        17,000
                                                            --------     --------     ---------
                                                            $440,328     $150,400     $ 525,015
                                                            --------     --------     ---------
FOREIGN
Acquisition of proved properties..........................  $ 81,942     $     --     $   6,565
Acquisition of unproved properties........................        --           --            --
Exploration...............................................    18,006       10,091         6,907
Development...............................................        --        1,988         1,406
                                                            --------     --------     ---------
                                                            $ 99,948     $ 12,079     $  14,878
                                                            --------     --------     ---------
TOTAL
Acquisition of proved properties..........................  $324,601     $ 62,955     $ 568,345
Acquisition of unproved properties........................    14,342        8,226         6,294
Exploration...............................................    34,985       27,165        24,430
Development...............................................   164,839       95,265        75,875
Capitalized interest......................................     4,764        6,035         4,967
Property sales............................................    (3,255)     (37,167)     (157,018)
Future operating costs for royalty interest sold..........        --           --        17,000
                                                            --------     --------     ---------
                                                            $540,276     $162,479     $ 539,893
                                                            --------     --------     ---------
                                                            --------     --------     ---------
</TABLE>
 
- ---------------
 
Foreign acquisitions in 1993 included $16.8 million of unevaluated costs added
through the merger of HERC.
 
                                      F-22
<PAGE>   51
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
              SUPPLEMENTAL OIL AND GAS DISCLOSURES -- (CONTINUED)
                                  (UNAUDITED)
 
     Capitalized Costs -- The following table sets forth the capitalized costs
and related accumulated depreciation, depletion and amortization, including
impairments, relating to the Company's oil and gas production, exploration and
development activities.
 
<TABLE>
<CAPTION>
                                                                            DECEMBER 31,
                                                                     --------------------------
                                                                        1993           1992
                                                                     -----------    -----------
                                                                           (IN THOUSANDS)
<S>                                                                  <C>            <C>
UNITED STATES
Proved properties..................................................  $ 2,390,644    $ 1,962,896
Unproved properties................................................       86,992         74,413
                                                                     -----------    -----------
                                                                       2,477,636      2,037,309
Accumulated depreciation, depletion and amortization...............   (1,171,227)    (1,007,942)
                                                                     -----------    -----------
                                                                     $ 1,306,409    $ 1,029,367
                                                                     -----------    -----------
FOREIGN
Proved properties..................................................  $   126,157    $    33,694
Unproved properties................................................       18,605         11,119
                                                                     -----------    -----------
                                                                         144,762         44,813
Accumulated depreciation, depletion and amortization...............      (60,216)       (29,802)
                                                                     -----------    -----------
                                                                     $    84,546    $    15,011
                                                                     -----------    -----------
TOTAL
Proved properties..................................................  $ 2,516,801    $ 1,996,590
Unproved properties................................................      105,597         85,532
                                                                     -----------    -----------
                                                                       2,622,398      2,082,122
Accumulated depreciation, depletion and amortization...............   (1,231,443)    (1,037,744)
                                                                     -----------    -----------
                                                                     $ 1,390,955    $ 1,044,378
                                                                     -----------    -----------
                                                                     -----------    -----------
</TABLE>
 
                                      F-23
<PAGE>   52
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
              SUPPLEMENTAL OIL AND GAS DISCLOSURES -- (CONTINUED)
                                  (UNAUDITED)
 
     Oil and Gas Reserve Information -- Proved oil and gas reserve quantities
are based on estimates prepared by the Company's engineers in accordance with
guidelines established by the Securities and Exchange Commission (SEC). The
Company's estimates of proved reserve quantities of its domestic properties and
certain international properties are subject to review by Ryder Scott Company
Petroleum Engineers, independent petroleum engineers. The Company's estimates of
proved reserve quantities of its Western Australia properties held through
Hadson Energy Limited are subject to review by Intera Information Technologies
Inc., independent petroleum engineers.
 
     There are numerous uncertainties inherent in estimating quantities of
proved reserves and projecting future rates of production and timing of
development expenditures. The following reserve data represents estimates only
and should not be construed as being exact.
 
<TABLE>
<CAPTION>
                                              1993                                  1992                            1991
                                  -----------------------------   -----------------------------   -----------------------------
    OIL, CONDENSATE AND           UNITED                          UNITED                          UNITED
    NATURAL GAS LIQUIDS           STATES     FOREIGN     TOTAL    STATES     FOREIGN     TOTAL    STATES     FOREIGN     TOTAL
    -------------------           ------     -------    -------   ------     -------    -------   -------    -------    -------
                                                                     (THOUSANDS OF BARRELS)
<S>                               <C>        <C>        <C>       <C>          <C>      <C>       <C>        <C>        <C>
Total proved reserves:
  Beginning of year..............  80,195       464      80,659    79,166       648      79,814    22,740        --      22,740
  Extensions, discoveries and
    other additions..............  10,885        --      10,885     7,112        --       7,112     3,463        --       3,463
  Purchases of minerals
    in-place.....................   9,871     5,095      14,966       226        --         226    62,722       858      63,580
  Revisions of previous
    estimates....................  (3,215)    1,125      (2,090)    7,796       206       8,002     9,032        --       9,032
  Production..................... (12,096)     (684)    (12,780)  (12,199)     (390)    (12,589)   (8,184)     (210)     (8,394)
  Sales of properties............  (1,917)       --      (1,917)   (1,906)       --      (1,906)  (10,607)       --     (10,607)
                                  -------    -------    -------   -------    -------    -------   -------    -------    -------
  End of year....................  83,723     6,000      89,723    80,195       464      80,659    79,166       648      79,814
                                  -------    -------    -------   -------    -------    -------   -------    -------    -------
                                  -------    -------    -------   -------    -------    -------   -------    -------    -------
Proved developed reserves:
  Beginning of year..............  72,596       464      73,060    68,573       648      69,221    19,387        --      19,387
  End of year....................  74,288     5,113      79,401    72,596       464      73,060    68,573       648      69,221
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                1993                   1992        1991
                                                                -----------------------------------    -------    -------
            NATURAL GAS                                         UNITED STATES   FOREIGN     TOTAL       TOTAL      TOTAL
            -----------                                         -------------   -------    --------    -------    -------
                                                                                    (MILLION CUBIC FEET)
<S>                                                                <C>          <C>        <C>         <C>        <C>
Total proved reserves:
  Beginning of year...............................................  643,299         --      643,299    602,048     500,336
  Extensions, discoveries and other additions.....................  119,210         --      119,210     68,650      47,878
  Purchases of minerals-in-place..................................  174,115     33,343      207,458     68,685     289,760
  Revisions of previous estimates.................................   (7,335)     1,327       (6,008)    34,042     (20,163)
  Production...................................................... (109,312)    (1,310)    (110,622)   (95,982)   (104,621)
  Sales of properties.............................................   (5,118)        --       (5,118)   (34,144)   (111,142)
                                                                   --------    -------     --------    ------     --------
  End of year.....................................................  814,859     33,360      848,219    643,299     602,048
                                                                   --------    -------     --------    ------     --------
                                                                   --------    -------     --------    ------     --------
Proved developed reserves:
  Beginning of year...............................................  585,424         --      585,424    549,742     472,777
  End of year.....................................................  696,421     24,251      720,672    585,424     549,742
</TABLE>
 
- ---------------
 
Prior to 1993, all of Apache's natural gas reserves were located in the United
States.
 
                                      F-24
<PAGE>   53
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
              SUPPLEMENTAL OIL AND GAS DISCLOSURES -- (CONTINUED)
                                  (UNAUDITED)
 
     Future Net Cash Flows -- Future revenues are based on year-end prices
except in those instances where the sale of natural gas is covered by contract
terms providing for determinable escalations. Operating costs, production and ad
valorem taxes and future development costs are based on current costs with no
escalation.
 
     The following table sets forth unaudited information concerning future net
cash flows for oil and gas reserves, net of income tax expense. Income tax
expense has been computed using expected future tax rates and giving effect to
permanent differences and credits which, under current laws, relate to oil and
gas producing activities. This information does not purport to present the fair
market value of the Company's oil and gas assets, but does present a
standardized disclosure concerning possible future net cash flows that would
result under the assumptions used.
 
<TABLE>
<CAPTION>
                                                                  DECEMBER 31,
                                                   -------------------------------------------
                                                      1993             1992            1991
                                                   ----------       ----------       ---------
                                                                  (IN THOUSANDS)
<S>                                                <C>              <C>              <C>
UNITED STATES
Cash inflows.....................................  $3,062,525       $2,789,334       $2,573,631
Production and development costs.................  (1,085,205)      (1,045,549)       (969,928)
Income tax expense...............................    (362,353)        (338,177)       (302,331)
                                                   ----------       ----------       ---------
Net cash flows...................................   1,614,967        1,405,608       1,301,372
10-percent annual discount rate..................    (550,887)        (542,118)       (488,495)
                                                   ----------       ----------       ---------
Discounted future net cash flows.................   1,064,080          863,490         812,877
                                                   ----------       ----------       ---------
FOREIGN
Cash inflows.....................................     154,466            9,231          13,656
Production and development costs.................     (57,281)          (5,903)         (6,315)
Income tax expense...............................     (24,680)            (588)           (754)
                                                   ----------       ----------       ---------
Net cash flows...................................      72,505            2,740           6,587
10-percent annual discount rate..................     (21,209)             (26)           (261)
                                                   ----------       ----------       ---------
Discounted future net cash flows.................      51,296            2,714           6,326
                                                   ----------       ----------       ---------
TOTAL
Cash inflows.....................................   3,216,991        2,798,565       2,587,287
Production and development costs.................  (1,142,486)      (1,051,452)       (976,243)
Income tax expense...............................    (387,033)        (338,765)       (303,085)
                                                   ----------       ----------       ---------
Net cash flows...................................   1,687,472        1,408,348       1,307,959
10-percent annual discount rate..................    (572,096)        (542,144)       (488,756)
                                                   ----------       ----------       ---------
Discounted future net cash flows*................  $1,115,376       $  866,204       $ 819,203
                                                   ----------       ----------       ---------
                                                   ----------       ----------       ---------
</TABLE>
 
- ---------------
 
* Estimated future net cash flows before income tax expense, discounted 10
  percent, totaled approximately $1.36 billion, $1.06 billion and $1.0 billion
  as of December 31, 1993, 1992 and 1991, respectively.
 
                                      F-25
<PAGE>   54
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
              SUPPLEMENTAL OIL AND GAS DISCLOSURES -- (CONTINUED)
                                  (UNAUDITED)
 
     The following table sets forth the principal sources of change in the
discounted future net cash flows:
 
<TABLE>
<CAPTION>
                                                           FOR THE YEAR ENDED DECEMBER 31,
                                                      -----------------------------------------
                                                        1993            1992            1991
                                                      ---------       ---------       ---------
                                                                   (IN THOUSANDS)
<S>                                                   <C>             <C>             <C>
Sales, net of production costs......................  $(309,229)      $(269,215)      $(224,548)
Net change in prices and production costs...........    (78,162)        (23,318)       (189,346)
Discoveries and improved recovery, net of related
  costs.............................................    205,255         113,467          73,107
Change in future development costs..................        450          16,913           6,329
Revision of quantities..............................    (29,360)         78,020          43,183
Purchases...........................................    347,860          99,228         528,204
Accretion of discount...............................    106,256          99,797          83,245
Change in income taxes..............................    (47,387)        (17,609)         15,825
Sales of properties.................................     (3,500)        (40,413)       (132,123)
Change in production rates and other................     56,989          (9,869)        (22,526)
                                                      ---------       ---------       ---------
                                                      $ 249,172       $  47,001       $ 181,350
                                                      ---------       ---------       ---------
                                                      ---------       ---------       ---------
</TABLE>
 
     Impact of Pricing -- The estimates of cash flows and reserve quantities
shown above are based on year-end oil and gas prices, except in those cases
where future gas sales are covered by contracts at specified prices. Estimates
of future liabilities and receivables applicable to oil and gas commodity hedges
are reflected in future cash flows from proved reserves with such estimates
based on prices in effect as of the date of the reserve report. Fluctuations are
largely due to the seasonal pricing nature of natural gas, supply perceptions
for natural gas and significant worldwide volatility in oil prices.
 
     Under SEC rules, companies that follow full cost accounting methods are
required to make quarterly "ceiling test" calculations. Under this test,
capitalized costs of oil and gas properties may not exceed the present value of
estimated future net revenues from proved reserves, discounted at 10 percent,
plus the lower of cost or fair market value of unproved properties, as adjusted
for related tax effects and deferred tax reserves. Application of these rules
during periods of relatively low oil and gas prices, even if of short-term
duration, may result in write-downs.
 
                                      F-26
<PAGE>   55
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
                     SUPPLEMENTAL QUARTERLY FINANCIAL DATA
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                       FIRST        SECOND       THIRD        FOURTH       TOTAL
                                      --------     --------     --------     --------     --------
                                                (IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
<S>                                   <C>          <C>          <C>          <C>          <C>
 1993
Revenues............................  $108,592     $111,270     $122,013     $124,763     $466,638
Expenses, net.......................    97,000       99,775      120,932      111,597      429,304
                                      --------     --------     --------     --------     --------
Net income..........................  $ 11,592     $ 11,495     $  1,081     $ 13,166     $ 37,334
                                      --------     --------     --------     --------     --------
                                      --------     --------     --------     --------     --------
Net income per common share.........  $    .24     $    .22     $    .02     $    .22     $    .70
                                      --------     --------     --------     --------     --------
                                      --------     --------     --------     --------     --------
1992
Revenues............................  $ 92,195     $131,230     $111,305     $119,570     $454,300
Expenses, net.......................    88,146      107,203      102,829      108,346      406,524
                                      --------     --------     --------     --------     --------
Net income..........................  $  4,049     $ 24,027     $  8,476     $  8,476     $ 47,776
                                      --------     --------     --------     --------     --------
                                      --------     --------     --------     --------     --------
Net income per common share.........  $    .09     $    .51     $    .18     $    .24     $   1.02
                                      --------     --------     --------     --------     --------
                                      --------     --------     --------     --------     --------
</TABLE>
 
                                      F-27
<PAGE>   56
 
                                                                      SCHEDULE V
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
                             PROPERTY AND EQUIPMENT
              FOR THE YEARS ENDED DECEMBER 31, 1993, 1992 AND 1991
 
<TABLE>
<CAPTION>
                                                           OIL AND
                                                             GAS          OTHER         TOTAL
                                                          PROPERTIES     PROPERTY     PROPERTY
                                                          ---------      -------      ---------
                                                                     (IN THOUSANDS)
<S>                                                       <C>            <C>          <C>
BALANCE, DECEMBER 31, 1990.............................   $1,379,750     $36,408      $1,416,158
Additions, at cost.....................................     679,911        6,190        686,101
Deduct sales or retirements, at cost...................    (140,018)      (2,558)      (142,576)
                                                          ---------      -------      ---------
BALANCE, DECEMBER 31, 1991.............................   1,919,643       40,040      1,959,683
Additions, at cost.....................................     199,646        7,386        207,032
Deduct sales or retirements, at cost...................     (37,167)         (24)       (37,191)
                                                          ---------      -------      ---------
BALANCE, DECEMBER 31, 1992.............................   2,082,122       47,402      2,129,524
Additions, at cost.....................................     543,531       39,171        582,702
Deduct sales or retirements, at cost...................      (3,255)     (23,826)       (27,081)
                                                          ---------      -------      ---------
BALANCE, DECEMBER 31, 1993.............................   $2,622,398     $62,747      $2,685,145
                                                          ---------      -------      ---------
                                                          ---------      -------      ---------
</TABLE>
 
                                      F-28
<PAGE>   57
 
                                                                     SCHEDULE VI
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
              ACCUMULATED DEPRECIATION, DEPLETION AND AMORTIZATION
                             PROPERTY AND EQUIPMENT
              FOR THE YEARS ENDED DECEMBER 31, 1993, 1992 AND 1991
 
<TABLE>
<CAPTION>
                                                                                             TOTAL
                                                          OIL AND GAS       OTHER         ACCUMULATED
                                                         PROPERTIES --   PROPERTY --     DEPRECIATION
                                                           DEPLETION     DEPRECIATION    AND DEPLETION
                                                          -----------    ------------    -------------
                                                                         (IN THOUSANDS)
<S>                                                        <C>            <C>             <C>
BALANCE, DECEMBER 31, 1990..............................   $  739,204      $ 13,598        $ 752,802
Additions charged to income as depreciation and
  depletion.............................................      132,748         2,830          135,578
Deduct retirements, renewals and replacements...........           --           (73)             (73)
                                                          -----------    ------------    -------------
BALANCE, DECEMBER 31, 1991..............................      871,952        16,355          888,307
Additions charged to income as depreciation and
  depletion.............................................      165,792         3,576          169,368
Deduct retirements, renewals and replacements...........           --           (24)             (24)
                                                          -----------    ------------    -------------
BALANCE, DECEMBER 31, 1992..............................    1,037,744        19,907        1,057,651
Additions charged to income as depreciation and
  depletion.............................................      193,699         5,596          199,295
Deduct retirements, renewals and replacements...........           --        (8,261)          (8,261)
                                                          -----------    ------------    -------------
BALANCE, DECEMBER 31, 1993..............................   $1,231,443      $ 17,242        $1,248,685
                                                          -----------    ------------    -------------
                                                          -----------    ------------    -------------
</TABLE>
 
                                      F-29
<PAGE>   58
 
                                                                      SCHEDULE X
 
                      APACHE CORPORATION AND SUBSIDIARIES
 
                   SUPPLEMENTARY INCOME STATEMENT INFORMATION
              FOR THE YEARS ENDED DECEMBER 31, 1993, 1992 AND 1991
 
<TABLE>
<CAPTION>
                                                             1993          1992          1991
                                                            -------       -------       -------
<S>                                                         <C>           <C>           <C>
                                                                      (IN THOUSANDS)
Repairs and maintenance...................................  $ 3,937       $ 2,890       $ 3,525
Taxes other than payroll and income taxes:
  Production taxes........................................   21,827        23,803        17,652
  Ad valorem taxes........................................    7,716        10,042         3,631
</TABLE>
 
     The amounts of repairs and maintenance to oil and gas operations are
included in operating expenses and are not readily available nor are they
considered material in amount. Other repairs and maintenance are summarized
above. Advertising and royalty expenses and personal property taxes are each
less than one percent of total revenues as reported in the related income
statement.
 
                                      F-30

<PAGE>   1
                                                                     Exhibit 3.1


                                    RESTATED
                          CERTIFICATE OF INCORPORATION
                                       OF
                               APACHE CORPORATION


         APACHE CORPORATION, a corporation organized and existing under the
laws of the State of Delaware, hereby certifies as follows:

         1.  The name of the corporation is Apache Corporation and the name
under which the corporation was originally incorporated was Apache Oil
Corporation.  The date of filing of its original Certificate of Incorporation
with the Secretary of State was the 6th day of December, 1954.

         2.  This Restated Certificate of Incorporation only restates and
integrates and does not further amend the provisions of the Certificate of
Incorporation of this corporation as heretofore amended or supplemented, and
there is no discrepancy between those provisions and the provisions of this
Restated Certificate of Incorporation.

         3.  The text of the Certificate of Incorporation, as amended or
supplemented heretofore, is hereby restated without further amendments or
changes to read as herein set forth in full:

         FIRST.  The name of the corporation is APACHE CORPORATION.

         SECOND.  The Registered Office in the state of Delaware is located at
the Corporation Trust Center, 1209 Orange Street, in the county of New Castle,
Wilmington, Delaware 19801.  The Registered Agent at that address is The
Corporation Trust Company.

         THIRD.  The nature of the business, or objects or purposes to be
transacted, promoted or carried on are:  To engage in the leasing as principal,
trustee, agent and/or nominee of lands believed to contain petroleum, oils, and
gas; the improving, mortgaging, leasing, assigning, and otherwise disposing of
the same; the prospecting, drilling, pumping, piping, storing, refining, and
selling, both at wholesale and retail, of oils and gas; the buying, otherwise
acquiring, selling, and otherwise disposing of any and all real estate and
personal property for use in the business of the company; the construction of
any and all buildings, pipe lines, pumping stations, and storage tanks, and any
and all other buildings required in carrying on the business of the company;
the acting as trustee or agent for holders of oil lands in the receiving and
disbursement of funds to be used in drilling for the common benefit of the land
holders.

         To buy, acquire, sell, retain, deal in, or otherwise dispose of
absolutely or contingently, petroleum and/or gas properties and interests
(whether like or different), and any right, title, or interest therein.
<PAGE>   2
         To purchase, sell and own royalties in oil and gas lands and leases;
to pay mortgages, notes, taxes, assessments, and other charges that are or may
become a lien or charge against any lands or leases in which this company may
have a royalty interest.

         To engage in the purchasing, leasing or otherwise acquiring, owning,
holding, operating, developing, mortgaging, pledging, exchanging, selling,
transferring, or otherwise disposing of, and investing, trading or dealing in
real and personal property of every kind and description or any interest
therein; the acting as trustee or agent for holders of interests in such real
and personal property in the receiving and disbursement of funds to be used in
connection therewith.

         To act as agent for others in purchasing, selling, renting and
managing real estate and leasehold or other interests therein; in negotiating
loans on real estate and leasehold or other interests therein, in lending money
secured by bonds or notes secured by mortgages or trust deeds on such real
estate or leasehold or other interest therein, or on the mortgage bonds of
industrial or railroad companies or of any public service corporation, or on
any state, municipal or quasi-municipal bonds, or in the buying, selling,
pledging, mortgaging or otherwise dealing in any such securities, and to act as
trustee in connection with any of the foregoing securities.

         To carry on the business of a telephone, telegraph, radio, television,
electrical light, heat and power, natural gas heat and power, and/or water
supply company, and in establishing, working, managing, controlling and
regulating exchanges and works for the supply and transmission of telephone,
telegraph, radio and television impulses, and for the supply of electric light,
heat and power, natural gas heat and power, and/or water for public or private
purposes, use and consumption.

         To engage in the underwriting, buying, selling and rediscounting of
notes, drafts, bills of exchange, stocks, bonds, securities and chooses in
action as a broker and dealer in securities.

         To acquire, and pay for in cash, stock or bonds of this Corporation or
otherwise, the good will, rights, assets and property, and to undertake or
assume the whole or any part of the obligations or liabilities of any person,
firm, association or corporation.

         To acquire, hold, use, sell, assign, lease, grant licenses in respect
of, mortgage or otherwise dispose of letters patent of the United States or any
foreign country, patent rights, licenses, franchises and privileges,
inventions, improvements and processes, copyrights, trademarks and trade names,
relating to or useful in connection with any business of this corporation.

         To acquire by purchase subscription, participation, or otherwise, and
to receive, hold, own, guarantee, sell, assign, exchange, transfer, mortgage,
pledge or otherwise dispose of or deal in and with any of the shares of the
capital stock, or any voting trust certificates in respect of the shares of
capital stock, script, warrants, rights, bonds, debentures, notes, trust
receipts, and other securities, obligations, chooses in action and evidences of
indebtedness or interest issued or created by any corporations, joint stock
companies, partnerships, limited partnerships, syndicates, associations, firms,
trusts or persons, public or private, or by the government of the United States
of America, or by any foreign government, or by any state, territory, province,
municipality or other political subdivision or by any governmental agency, and
as owner thereof





                                       2
<PAGE>   3
to possess and exercise all the rights, powers and privileges of ownership,
including the right to execute consents and vote thereon and to do any and all
acts and things necessary or advisable for the preservation, protection,
improvement and enhancement in value thereof.

         To enter into, make and perform contracts of every kind and
description with any person, firm, association, corporation, municipality,
county, state, body politic or government or colony or dependency thereof.

         To borrow or raise monies for any of the purposes of the Corporation
and, from time to time to draw, make, accept, endorse, execute and issue
promissory notes, drafts, bills of exchange, warrants, bonds, debentures and
other negotiable or non-negotiable instruments and evidences of indebtedness,
and to secure the payment of any thereof and of the interest thereon by
mortgage upon or pledge, conveyance or assignment in trust of the whole or any
part of the property of the Corporation, whether at the time owned or
thereafter acquired, and to sell, pledge or otherwise dispose of such bonds or
other obligations of the Corporation for its corporate purposes.

         To purchase, hold, sell and transfer the shares of its own capital
stock; provided it shall not use its funds or property for the purchase of its
own shares of capital stock when such use would cause any impairment of its
capital except as otherwise permitted by law, and provided further that shares
of its own capital stock belonging to it shall not be voted upon directly or
indirectly.

         To have one or more offices, to carry on all or any of its operations
and business and to purchase or otherwise acquire, hold, own, mortgage, sell,
convey or otherwise dispose of, real and personal property of every class and
description in any of the states, districts, territories or colonies of the
United States, and in any and all foreign countries, subject to the laws of
such state, district, territory, colony or country.

         In general, to carry on any other business in connection with the
foregoing, and to have and exercise all the powers conferred by the laws of
Delaware upon corporations formed under the General Corporation Law of the
State of Delaware, and to do any or all things hereinbefore set forth to the
same extent as natural persons might or could do.

         The objects and purposes specified in the foregoing clauses shall,
except where otherwise expressed, be in no wise limited or restricted by
reference from, the terms of any other clause in this Certificate of
Incorporation, but the objects and purposes specified in each of the foregoing
clauses of this article shall be regarded as independent objects and purposes.

         FOURTH.  The total number of shares of all classes of stock which this
corporation shall have authority to issue is 220,000,000 which shall be divided
into (a) 215,000,000 shares of common stock having a par value of $1.25 per
share and (b) 5,000,000 shares of no par value preferred stock.

         A description of the different classes of stock of the Corporation, a
statement of the relative rights of the holders of stock of such classes, and a
statement of the voting powers and the designations, preferences and relative,
participating, optional or other special rights, and qualifications,
limitations or restrictions thereof, of the various classes of stock are as
follows:





                                       3
<PAGE>   4
         A.  Shares of the Preferred Stock may be issued by the Board of
Directors of the Corporation with such voting powers, full or limited or
without voting powers and in such classes and series and with such
designations, preferences and relative, participating, optional or other
special rights, and qualifications, limitations or restrictions thereof, as
shall be stated and expressed in the resolution or resolutions providing for
the issue of such stock adopted by the Board of Directors of the Corporation.

         B.  A holder of the Common Stock of the Corporation shall be entitled
to one vote for each and every share of Common Stock standing in his name at
any and all meetings of stockholders of the Corporation.

         C.  Shares of the voting stock of the Corporation shall not be voted
cumulatively.

         D.  Except as provided in Paragraph A of this Article FOURTH, shares
of stock of the Corporation do no carry pre-emptive rights.

         E.  There shall be set forth on the face or back of each certificate
for shares of stock of the Corporation a statement that the Corporation will
furnish without charge to each stockholder who so requests, the designations,
preferences and relative, participating, optional or other special rights of
each class of stock or series thereof and the qualifications, limitations or
restrictions of such preferences and/or rights, provided, however, that there
shall be no lien in favor of the Corporation upon the shares represented by any
such certificate and there shall be no restriction upon the transfer of shares
so represented by virtue of any by-law of the Corporation unless such lien or
restriction is stated upon the certificate.

         FIFTH.  The minimum amount of capital with which the Corporation will
commence business is One thousand Dollars ($1,000.00).

         SIXTH.  The names and places of residence of the original
incorporators were as follows:

                   NAMES                     RESIDENCES

                   H. K. Webb                Wilmington, Delaware

                   H. C. Broadt              Wilmington, Delaware

                   A. D. Atwell              Townsend, Delaware

         SEVENTH.  The Corporation is to have perpetual existence.

         EIGHTH.  The private property of the stockholders shall not be subject
to the payment of corporate debts to any extent whatever.

         NINTH.  The number of directors shall be fixed from time to time
exclusively by the Board of Directors pursuant to a resolution adopted by a
majority of the directors then in office.





                                       4
<PAGE>   5
         At each annual meeting of shareholders commencing in 1986, the terms
of office for which candidates are nominated and elected shall be divided so
that as nearly as numerically possible the terms of office of one-third of the
total number of directors elected and serving upon completion of such election
will expire at the annual meeting of shareholders next following the date of
such election, and one-third each at each of the two next ensuing annual
meetings of shareholders.

         A majority of the directors then in office, in their sole discretion
and whether or not constituting less than a quorum, may elect a replacement
director to serve during the unexpired term of any director previously elected
whose office is vacant as a result of death, resignation, retirement,
disqualification, removal or otherwise, and may elect directors to fill any
newly created directorships created by the Board.  At any election of directors
by the Board of Directors to fill any vacancy caused by an increase in the
number of directors, the terms of office for which candidates are nominated and
elected shall be divided as set forth in the immediately preceding paragraph.

         Each director shall be elected and serve until his successor shall
have been duly elected and qualified unless he shall have resigned, become
disqualified, deceased or disabled, or shall otherwise have been removed from
office.

         In furtherance and not in limitations of the powers conferred by
statute, the Board of Directors is expressly authorized:

         To make, alter or repeal the by-laws of the Corporation.

         To authorize and cause to be executed mortgages and liens upon the
real and personal property of the Corporation.

         To set apart out of any of the funds of the Corporation available for
dividends, a reserve or reserves for any proper purpose and to abolish any such
reserve in the manner in which it was created.

         By resolution passed by a majority of the whole Board, to designate
one or more committees, each committee to consist of two or more of the
directors of the Corporation, which, to the extent provided in the resolution
or in the by-laws of the Corporation, shall have and may exercise the powers of
the Board of Directors in the management of the business and affairs of the
Corporation, and may authorize the seal of the Corporation to be affixed to all
papers which may require it.  Such committee or committees shall have such name
or names as may be stated in the by-laws of the Corporation or as may be
determined from time to time by resolution adopted by the Board of Directors.

         When and as authorized by the affirmative vote of the holders of a
majority of the stock issued and outstanding having voting power given at a
stockholders' meeting duly called for that purpose, to sell, lease or exchange
all of the property and assets of the Corporation, including its good will and
its corporate franchises, upon such terms and conditions and for such
consideration which may be in whole or in part shares of stock in, and/or other
securities of, any other corporation or corporations, as its Board of Directors
shall deem expedient and for the best interest of the Corporation.





                                       5
<PAGE>   6
         Notwithstanding anything contained in this Certificate of
Incorporation to the contrary, the affirmative vote of the holders of four-
fifths of all classes of stock of the Corporation entitled to vote in the
election of directors, considered as one class, shall be required to alter,
amend, or adopt any provision inconsistent with or repeal this Article NINTH.

         In the absence of fraud no contract or other transaction between this
Corporation and any other corporation shall be affected by the fact that any
director of this Corporation is interested in, or is a director or officer of,
such other corporation, and any director, individually or jointly, may be a
party to, or may be interested in, any contract or transaction of this
Corporation or in which this Corporation is interested; and no contract, or
other transaction of this Corporation with any person, firm, or corporation,
shall be affected by the fact that any director of this Corporation is a party
to, or is interested in, such contract, act, or transaction, or in any way
connected with such person, firm, or corporation, and every person who may
become a director of this Corporation is hereby relieved from any liability
that might otherwise exist from contracting with the Corporation for the
benefit of himself or any firm, association, or corporation in which he may be
in any way interested.

         TENTH.  Whenever a compromise or arrangement is proposed between this
Corporation and its creditors or any class of them and/or between this
Corporation and its stockholders or any class of them, any court of equitable
jurisdiction within the State of Delaware may, on the application in a summary
way of this Corporation or of any creditor or stockholder thereof, or on the
application of any receiver or receivers appointed for this Corporation under
the provisions of Section 291 of Title 8 of the Delaware Code, or on the
application of trustees in dissolution or of any receiver or receivers
appointed for this Corporation under the provisions of Section 279 of Title 8
of the Delaware Code, order a meeting of the creditors or class of creditors,
and/or of the stockholders or class of stockholders of this Corporation, as the
case may be, to be summoned in such manner as the said court directs.  If a
majority in number representing three-fourths in value of the creditors or
class of creditors, and/or of the stockholders or class of stockholders of this
Corporation, as the case may be, agree to any compromise or arrangement and to
any reorganization of this Corporation as consequence of such compromise or
arrangement, the said compromise or arrangement and the said reorganization
shall, if sanctioned by the court to which the said application has been made,
be binding on all the creditors or class of creditors, and/or on all the
stockholders or class of stockholders, of this Corporation, as the case may be,
and also on this Corporation.

         ELEVENTH.  Meetings of stockholders may be held outside the state of
Delaware, if the by-laws so provide.  The books of the Corporation may be kept
(subject to any provision contained in the statutes) outside of the state of
Delaware at such place or places as may be designated from time to time by the
Board of Directors or in the by-laws of the Corporation.  Election of directors
need not be by ballot unless the by- laws of the Corporation shall so provide.

         TWELFTH.  A.  Except as set forth in this article, the affirmative
vote or consent of the holders of four-fifths of all classes of stock of the
Corporation entitled to vote in elections of directors, considered for the
purposes of this article as one class, shall be required (a) for the adoption
of any agreement for the merger or consolidation of the Corporation with or
into any other corporation, or (b) to authorize any sale or lease of all or any
substantial part of the assets





                                       6
<PAGE>   7
of the Corporation to, or any sale or lease to the Corporation or any
subsidiary thereof in exchange for securities of the Corporation of any assets
(except assets having an aggregate fair market value of less than $5,000,000)
of, any other corporation, person or other entity if, in either case, as of the
record date for the determination of stockholders entitled to vote thereon or
consent thereto, such other corporation, person or entity is the beneficial
owner, directly or indirectly, of more than 5% of the outstanding shares of
stock of the Corporation entitled to vote in elections of directors considered
for the purposes of this article as one class.  Such affirmative vote or
consent shall be in addition to the vote or consent of the holders of the stock
of the Corporation otherwise required by law or any agreement between the
Corporation and any national securities exchange.

         B.  For the purpose of this article, (a) any corporation, person or
other entity shall be deemed to be the beneficial owner of any shares of stock
of the Corporation (i) which it has the right to acquire pursuant to any
agreement or upon exercise of conversion rights, warrants or options or
otherwise, or (ii) which are beneficially owned directly or indirectly
(including shares deemed owned through application of clause (i) above), by any
other corporation, person or entity with which it or its "affiliate" or
"associate" (as defined below) has any agreement, arrangement or understanding
for the purpose of acquiring, holding, voting or disposing of stock of the
Corporation or which is its "affiliate" or "associate" as those terms are
defined in Rule 12b-2 of the General Rules and Regulations under the Securities
Exchange Act of 1934 as in effect at the date of adoption of this article by
the shareholders of the Corporation, and (b) the outstanding shares of any
class of stock of the Corporation shall include shares deemed owned through
application of clauses (i) and (ii) above but shall not include any other
shares which may be issuable pursuant to any agreement, or upon exercise of
conversion rights, warrants or options or otherwise.

         C.  The Board of Directors shall have the power and duty to determine
for the purposes of this article, on the basis of information known to the
Corporation, whether (a) such other corporation, person or entity beneficially
owns more than 5% of the outstanding shares of stock of the Corporation
entitled to vote in elections of directors, (b) a corporation, person or entity
is an "affiliate" or "associate" (as defined above) of another, (c) the assets
being acquired by the Corporation or any subsidiary thereof have the aggregate
fair market value of less than $5,000,000, and (d) the memorandum of
understanding referred to below is substantially consistent with the
transaction covered thereby.  Any such determination shall be conclusive and
binding for all purposes of this article.

         D.  The provisions of this article shall not be applicable to (a) any
merger or consolidation of the Corporation with or into any other corporation,
or any sale or lease of all or any substantial part of the assets of the
Corporation or any subsidiary thereof in exchange for securities of the
Corporation or of any assets of, any corporation, if the Board of Directors of
the Corporation shall by resolution have approved a memorandum of understanding
with such other corporation with respect to and substantially consistent with
such transaction prior to the time that such other corporation shall have
become a holder of more than 5% of the outstanding shares of stock of the
Corporation entitled to vote in elections of directors; (b) any merger or
consolidation of the Corporation with, or any sale or lease to the Corporation
or any subsidiary thereof of any of the assets of, any corporation of which a
majority of the outstanding shares of all classes of stock entitled to vote in
elections of the directors is owned of record or beneficially by the
Corporation and its subsidiaries.





                                       7
<PAGE>   8
         E.  No amendment to the Certificate of Incorporation of the
Corporation shall amend, alter, change or repeal any of the provisions of this
article, unless the amendment effecting such amendment, alteration, change or
repeal shall receive the affirmative vote or consent of the holders of
four-fifths of all classes of stock of the Corporation entitled to vote in
elections of directors, considered for the purposes of this article as one
class.

         THIRTEENTH.  The Corporation reserves the right, except as herein
provided, to amend, alter, change or repeal any provision contained in this
Certificate of Incorporation, in the manner now or hereafter prescribed by
statute, and all rights conferred upon stockholders herein are granted subject
to this reservation.

         FOURTEENTH:  A.  Any resolution adopted by the Board of Directors in
connection with a Second Tier Transaction shall include provisions assuring
that each holder of Common Stock (other than a Related Person) shall have the
right (which right may be an alternative to other options offered to such
holder) to receive not less than the highest price paid by, and to receive
terms not less favorable than the most favorable terms granted by, any Related
Person in connection with the acquisition of Common Stock pursuant to a Tender
Offer.

         B.  The term "Related Person" means any corporation, person or other
entity that has Beneficial Ownership, directly or indirectly, of more than 5%
of the outstanding Voting Stock.  In determining the outstanding Voting Stock,
there shall be included Voting Stock as to which a Related Person has
Beneficial Ownership, but there shall not be included any other Voting Stock
which may be issuable pursuant to any agreement, or upon exercise of conversion
rights, warrants or options or otherwise.  The Board of Directors shall have
the power and duty to determine for the purposes of this article, on the basis
of information known to the Corporation, whether (a) such other corporation,
person or entity has Beneficial Ownership of more than 5% of the outstanding
Voting Stock, or (b) a corporation, person or entity is an "affiliate" or
"associate" (as defined below) of another for purposes of determining
Beneficial Ownership.  Any such determination shall be conclusive and binding
for all purposes of this article.

         The term "Beneficial Ownership" shall include without limitation:  (i)
all Voting Stock directly or indirectly owned by a person or entity, by an
"affiliate" or "associate" of a person or entity, (as those terms are defined
in Rule 12b-2 of the General Rules and Regulations under the Securities
Exchange Act of 1934, as amended, as in effect at the date of adoption of this
article); (ii) all Voting Stock which such person or entity, affiliate or
associate has the right to acquire (a) through the exercise of any option,
warrant or right (whether or not currently exercisable), (b) through the
conversion of a security, (c) pursuant to the power to revoke a trust,
discretionary account, or similar arrangement; and (iii) all Voting Stock as to
which such person or entity, affiliate or associate, directly or indirectly,
through any contract, arrangement, understanding, relationship, or otherwise
(including without limitation any written or unwritten agreement to act in
concert) has or shares voting power (which includes the power to vote or to
direct the voting of such Voting Stock) or investment power (which includes the
power to dispose or to direct the disposition of such Voting Stock) or both.

         The term "Second Tier Transaction" means, at such time that there is a
Related Person which has acquired Voting Stock by means of a Tender Offer, (a)
the adoption, or submission to the shareholders of the Corporation for
approval, or any agreement or plan for the merger,





                                       8
<PAGE>   9
consolidation or reorganization of the Corporation with or into any other
corporation or entity, or (b) the authorization of any sale or lease of all or
substantially all of the assets of the Corporation or (c) the issuance or sale
by the Corporation of any equity security (as that term is defined in the
Securities Exchange Act of 1934, as amended) to a Related Person or any
affiliate or associate of a Related Person under circumstances that holders of
Voting Stock do not have the opportunity to purchase such equity on a pro rata
basis.

         The term "Tender Offer" means any tender offer for, or request or
invitation for tenders of, Voting Stock, within the meaning of Section 14(d)(1)
of the Securities Exchange Act of 1934, as amended, and any purchase or series
of purchases of Voting Stock at or above then prevailing market prices for such
Voting Stock pursuant to which more than 5% of the outstanding Voting Stock is
acquired in any two-year period.

         The term "Voting Stock" means securities of the Corporation entitled
under ordinary circumstances to vote in elections of directors, considered for
the purposes of this article as one class.

         C.  No amendment to the Certificate of Incorporation shall amend,
alter, change or repeal any of the provisions of this article, unless the
amendment effecting such amendment, alteration, change or repeal shall receive
the affirmative vote or consent of the holders of four- fifths of the Voting
Stock and shall receive the affirmative vote or consent of a majority of all
Voting Stock other than Voting Stock of which a Related Person has Beneficial
Ownership.

         FIFTEENTH.  A.  Subject to Paragraph B below, the Corporation shall
not acquire, directly or indirectly, any Voting Stock, by purchase, exchange or
otherwise from any Related Person.

         B.  This article shall not be applicable to any acquisition of Voting
Stock (1) pursuant to a Tender Offer made to all holders of any class of Voting
Stock on the same price, terms and conditions and, if for less than all of the
Voting Stock, subject to pro rata acceptance (except as to holders of fewer
than 100 shares), (2) in compliance with Rule 10b-18 of the General Rules and
Regulations under the Securities Exchange Act of 1934, as amended, as in effect
at the date of adoption of this article, or (3) for a total consideration per
share, including payment for legal fees, investment banking fees, brokerage
fees and related costs and expenses of the holder in acquiring such Voting
Stock, not in excess of the Market Value Per Share.

         C.  The term "Related Person" means any corporation, person or entity
that has Beneficial Ownership, directly or indirectly, of more than 5% of the
outstanding Voting Stock.  In determining the outstanding Voting Stock of the
Corporation, there shall be included Voting Stock as to which a Related Person
has Beneficial Ownership, but there shall not be included any other Voting
Stock which may be issuable pursuant to any agreement, or upon exercise of
conversion rights, warrants or options or otherwise.  The Board of Directors
shall have the power and duty to determine for the purposes of this article, on
the basis of information known to the Corporation, whether (a) such other
corporation, person or entity has Beneficial Ownership of more than 5% of the
outstanding Voting Stock, or (b) a corporation, person or entity is an
"affiliate" or "associate" (as defined below) of another for purposes of
determining Beneficial Ownership.  Any such determination shall be conclusive
and binding for all purposes of this article.





                                       9
<PAGE>   10
         The term "Beneficial Ownership" shall include without limitation:  (i)
all Voting Stock directly or indirectly owned by a person or entity, by an
"affiliate" or "associate" of a person or entity, (as those terms are defined
in Rule 12b-2 of the General Rules and Regulations under the Securities
Exchange Act, as amended, as in effect at the date of adoption of this
article); (ii) all Voting Stock which such person or entity, affiliate or
associate has the right to acquire (a) through the exercise of any option,
warrant or right (whether or not currently exercisable), (b) through the
conversion of a security, (c) pursuant to the power to revoke a trust,
discretionary account, or similar arrangement; and (iii) all Voting Stock as to
which such person or entity, affiliate or associate, directly or indirectly,
through any contract, arrangement, understanding, relationship, or otherwise
(including without limitation any written or unwritten agreement to act in
concert) has or shares voting power (which includes the power to vote or to
direct the voting of such Voting Stock) or investment power (which includes the
power to dispose or to direct the disposition of such Voting Stock) or both.

         The term "Market Value Per Share" means for the 30-day period
immediately preceding the date on which Voting Stock is acquired (i) the
average closing price on the Composite Tape for New York Stock Exchange Issues,
(ii) if the Voting Stock is not quoted on the Composite Tape or is not listed
on such Exchange, the average closing price on the principal United States
securities exchange registered under the Securities Exchange Act of 1934, on
which such stock is listed, (iii) if such stock is not listed on any such
exchange, the average closing bid quotation on the National Association of
Securities Dealers, Inc., Automated Quotations System or any comparable system
then in use, or (iv) if no such quotations are available, the fair market value
as determined by the Board of Directors in its discretion.

         The term "Voting Stock" means securities of the Corporation entitled
under ordinary circumstances to vote in elections of directors, considered for
the purposes of this article as one class.

         SIXTEENTH.  Except as otherwise expressly provided in this Certificate
of Incorporation, any action required or permitted to be taken by the
shareholders of the Corporation must be effected at a duly called annual or
special meeting of the shareholders and may not be effected by any consent in
writing by shareholders, and the affirmative vote of the holders of four-fifths
of all classes of stock of the Corporation entitled to vote in elections of
directors, considered as one class, shall be required to alter, amend, or adopt
any provision inconsistent with, or to repeal, this Article SIXTEENTH.

         SEVENTEENTH.  No director shall be personally liable to the
Corporation or any stockholder for monetary damages for breach of fiduciary
duty as a director, except for any matter in respect to which such director
shall be liable under Section 174 of Title 8 of the Delaware Code (relating to
the Delaware General Corporation Law) or any amendment thereto or successor
provision thereto or shall be liable by reason that, in addition to any and all
other requirements for such liability, he (i) shall have breached his duty of
loyalty to the Corporation or its stockholders, (ii) shall not have acted in
good faith, or in failing to act, shall not have acted in good faith, (iii)
shall have acted in a manner involving intentional misconduct or a knowing
violation of law or, in failing to act, shall have acted in a manner involving
intentional misconduct or a knowing violation of law or (iv) shall have derived
an improper personal benefit.  Neither the amendment nor repeal of this Article
SEVENTEENTH, nor the adoption





                                       10
<PAGE>   11
of any provision of the Certificate of Incorporation inconsistent with this
Article SEVENTEENTH, shall eliminate or reduce the effect of this Article
SEVENTEENTH, in respect to any matter occurring, or any cause of action, suit
or claim that, but for this Article SEVENTEENTH would accrue or arise, prior to
such amendment, repeal or adoption of an inconsistent provision.

         4.      This Restated Certificate of Incorporation was duly adopted by
the Board of Directors in accordance with Section 245 of the General
Corporation Law of the State of Delaware.

         IN WITNESS WHEREOF, said Apache Corporation has caused this Restated
Certificate of Incorporation to be signed by William J. Johnson, its President,
and attested by Cheri L. Peper, its Assistant Secretary, this 1st day of
December, 1993.




                                                APACHE CORPORATION


                                        By:     /s/ WILLIAM J. JOHNSON     
                                                William J. Johnson, President

ATTEST:


By:      /s/ CHERI L. PEPER                      
         Cheri L. Peper
         Assistant Secretary





                                       11

<PAGE>   1
                                                                    Exhibit 10.3


________________________________________________________________________________





                          FOURTH AMENDMENT TO AMENDED
                         AND RESTATED CREDIT AGREEMENT


                           dated as of July 13, 1993


                                     among


                               APACHE CORPORATION

                                      and

                    VARIOUS COMMERCIAL LENDING INSTITUTIONS,

                                      and

                      THE FIRST NATIONAL BANK OF CHICAGO,
                  as Administrative Agent and Collateral Agent


                                      and

                                 CHEMICAL BANK,
                                  as Co-Agent





________________________________________________________________________________
<PAGE>   2
                          FOURTH AMENDMENT TO AMENDED
                         AND RESTATED CREDIT AGREEMENT


         THIS FOURTH AMENDMENT TO AMENDED AND RESTATED CREDIT AGREEMENT, dated
as of July 13, 1993, (the Fourth Amendment"), is among APACHE CORPORATION, a
Delaware corporation (the "Company"), the various commercial lending
institutions as are or may become parties hereto (the "Lenders"), THE FIRST
NATIONAL BANK OF CHICAGO, as Administrative Agent (in such capacity, the
"Administrative Agent") and Collateral Agent (in such capacity, the"Collateral
Agent"), and CHEMICAL BANK, as Co-Agent (the "Co-Agent").

                              W I T N E S S E T H:

         1.      The Company, the Lenders, the Administrative Agent, the
Collateral Agent and the Co-Agent are parties to that certain Amended and
Restated Credit Agreement, dated as of April 15, 1992 (the "Original Amended
and Restated Credit Agreement").

         2.      The Original Amended and Restated Credit Agreement has been
amended prior to the date hereof (the Original Amended and Restated Credit
Agreement, as so amended, herein called the "Amended and Restated Credit
Agreement").

         3.      The Company has acquired capital stock in HERC (as hereinafter
defined).

         4.      As a result of the acquisition by the Company of stock in
HERC, the Company, the Lenders, the Administrative Agent, the Collateral Agent
and the Co-Agent wish to amend the Amended and Restated Credit Agreement as
follows:

         I.      AMENDMENTS TO AMENDED AND RESTATED CREDIT AGREEMENT.

         A.      Section 1.1 of the Amended and Restated Credit Agreement is
hereby amended by inserting the following definitions in proper alphabetical
order:

                 "HEL" means Hadson Energy Limited, a Western Australia
         corporation.

                 "HERC" means Hadson Energy Resources Corporation, a Delaware
         corporation.

         B.      The first sentence of the definition of "Affiliate" appearing
in Section 1.1 of the Amended and Restated Credit Agreement is hereby amended
in its entirety as follows:
<PAGE>   3
                 "Affiliate" of any Person means any Person directly or
         indirectly controlling, controlled by, or under direct or indirect
         common control of such Person and in the case of the Company or any
         Subsidiary shall include Key, APCOP, and NGC, but shall not include
         (except for the purposes of Sections 11.9 and 15.9) HERC or HEL.

         C.      The definition of "Subsidiary" appearing in Section 1.1 of the
Amended and Restated Credit Agreement is hereby amended in its entirety as
follows:

                 "Subsidiary" means MW Petroleum, MWJR, each Drilling
         Partnership and any other person more than 50% of the outstanding
         voting securities of which shall at the time be owned or controlled,
         directly or indirectly, by the Company or by one or more subsidiaries
         or by the Company and one or more Subsidiaries; provided, that not
         withstanding the foregoing, the term Subsidiary shall not include
         APCOP or, for the purposes of Article VIII (except for Sections 8.10,
         8.15, and 8.16), Article IX, Article XI (except for Sections 11.2 and
         11.9) and Article XII (except for Section 12.1 insofar as the
         representation or warranty which is breached or shall be false was
         made pursuant to Section 8.10, Section 8.15 or Section 8.16), HERC or
         HEL.

         D.      Clause (b) of Section 9.1 of the Amended and Restated Credit
Agreement is hereby amended in its entirety as follows:

         "(b) as soon as available and in any event within 45 days after the
         close of the first three quarterly periods of each fiscal year, for
         itself, consolidated unaudited balance sheets as of the close of each
         such period and consolidated profit and loss and reconciliation of
         surplus statements and a statement of cash flows for the period from
         the beginning of such fiscal year to the end of such quarter."

         II.     EFFECTIVENESS.  This Fourth Amendment shall become effective
as of the date hereof when the Administrative Agent shall have received (a)
counterparts hereof duly executed by the Company, the Lenders, the
Administrative Agent, the Collateral Agent and the Co-Agent (or, in the case of
any party as to which an executed counterpart shall not have been received,
telegraphic, telex, or other written confirmation from such party of execution
of a counterpart hereof by such party) and (b) the consent and acknowledgement
(herein called the "Consent"), substantially in the form of Exhibit A hereto,
of MW Petroleum Corporation, a Colorado corporation ("MW Petroleum").

         III.    REAFFIRMATION OF REPRESENTATIONS AND WARRANTIES.  To induce
the Lenders, the Administrative Agent, the Collateral Agent and the Co-Agent to
enter into this Fourth Amendment, the Company hereby reaffirms, as of the date
hereof, its representations and warranties in their entirety contained in
Article VIII of the Amended and Restated Credit Agreement (except with respect
to HERC and HEL except for the representations and warranties contained in





                                       2
<PAGE>   4
Sections 8.10, 8.15, and 8.16) and in all other documents executed pursuant 
thereto (except to the extent such representations and warranties relate solely
to an earlier date) and additionally represents and warrants as follows:

                 (i)      The Company is a corporation, and MW Petroleum, MWJR
         Petroleum Corporation, a Delaware corporation ("MWJR"), and each other
         Subsidiary (except for HERC and HEL) is a corporation or other legal
         entity, in either case duly incorporated or otherwise properly
         organized, validly existing and in good standing under the laws of its
         jurisdiction of incorporation or organization and has all requisite
         authority, permits and approvals, and is in good standing to conduct
         its business in each jurisdiction in which its business is conducted.

                 (ii)     The Company has the corporate power and authority and
         legal right to execute and deliver this Fourth Amendment and to
         perform its obligations hereunder.  MW Petroleum has the corporate
         power and authority and legal right to execute and deliver its Consent
         and to perform its obligations thereunder.  The execution and delivery
         by the Company of this Fourth Amendment, and the execution and
         delivery by MW Petroleum of its Consent, and the performance of their
         obligations hereunder and thereunder have been duly authorized by
         proper corporate proceedings, and this Fourth Amendment and the
         Amended and Restated Credit Agreement as amended hereby, with respect
         to the Company, and its Consent, with respect to MW Petroleum,
         constitute legal, valid and binding obligations of the Company and MW
         Petroleum, enforceable against the Company and MW Petroleum in
         accordance with their terms, except as enforceability may be limited
         by bankruptcy, insolvency or similar laws affecting the enforcement of
         creditors' rights generally.

                 (iii)    No Default or Unmatured Default has occurred and is
         continuing as of the date hereof.

                 (iv)     There has been no material adverse change (a) in the
         businesses, assets, properties, operations, condition (financial or
         otherwise) or results of operations or prospects of the Company and
         its Subsidiaries (except for HERC and HEL) or MW Petroleum and its
         Subsidiaries from April 15, 1992, (b) affecting the rights and
         remedies of the Lenders under and in connection with this Fourth
         Amendment, the Amended and Restated Credit Agreement as amended by
         this Fourth Amendment, the Notes and the Collateral Documents or (c)
         in the ability of the Company to perform its obligations under this
         Fourth Amendment, the Amended and Restated Credit Agreement as amended
         by this Fourth Amendment, the Notes or the Collateral Documents to
         which it is a party, or the obligation of MW Petroleum to perform its
         obligations pursuant to its Guaranty and the Collateral Documents to
         which it is a party.





                                       3
<PAGE>   5
                 (v)      There is no litigation, arbitration, governmental
         investigation, proceeding or inquiry pending or, to the knowledge of
         any of their officers threatened against or affecting the Company or
         its Subsidiaries (except for HERC and HEL) or MW Petroleum or its
         Subsidiaries which is or could have a Material Adverse Effect.

         IV.     DEFINED TERMS.  Except as amended hereby, terms used herein
when defined in the Amended and Restated Credit Agreement shall have the same
meanings herein unless the context otherwise requires.

         V.      REAFFIRMATION OF CREDIT AGREEMENT.  This Fourth Amendment
shall be deemed to be an amendment to the Amended and Restated Credit
Agreement, and the Amended and Restated Credit Agreement, as amended hereby, is
hereby ratified, approved and confirmed in each and every respect.  All
references to the Amended and Restated Credit Agreement herein and in any other
document, instrument, agreement or writing shall hereafter be deemed to refer
to the Amended and Restated Credit Agreement as amended hereby.

         VI.     GOVERNING LAW.  THIS FOURTH AMENDMENT SHALL BE CONSTRUED IN
ACCORDANCE WITH THE INTERNAL LAWS (AND NOT THE LAW OF CONFLICTS) OF THE STATE
OF ILLINOIS, BUT GIVING EFFECT TO FEDERAL LAWS APPLICABLE TO NATIONAL LENDERS.
All obligations of the Company and rights of the Lenders, the Administrative
Agent, the Collateral Agent and the Co-Agent and any other holders of the Notes
expressed herein shall be in addition to and not in limitation of those
provided by applicable law.

         VII.    SEVERABILITY OF PROVISIONS.  Any provision in this Fourth
Amendment that is held to be inoperative, unenforceable, or invalid in any
jurisdiction shall, as to that jurisdiction, be inoperative, unenforceable, or
invalid without affecting the remaining provisions in that jurisdiction or the
operation, enforceability, or validity of that provision in any other
jurisdiction, and to this end the provisions of this Fourth Amendment are
declared to be severable.

         VIII.   COUNTERPARTS.  This Fourth Amendment may be executed in any
number of counterparts, all of which taken together shall constitute one
agreement, and any of the parties hereto may execute this Agreement by signing
any such counterpart.

         IX.     HEADINGS.  Article and section headings in this Fourth
Amendment are for convenience of reference only, and shall not govern the
interpretation of any of the provisions of this Fourth Amendment.

         X.      SUCCESSORS AND ASSIGNS.  This Fourth Amendment shall be
binding upon and inure to the benefit of the parties hereto and their
respective successors and assigns.





                                      4
<PAGE>   6
         XI.     NOTICE.  THIS WRITTEN FOURTH AMENDMENT TOGETHER WITH THE
AMENDED AND RESTATED CREDIT AGREEMENT AND THE OTHER LOAN DOCUMENTS REPRESENT
THE FINAL AGREEMENT BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE
OF PRIOR, CONTEMPORANEOUS OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES.  THERE
ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

         IN WITNESS WHEREOF, the Company, the Lenders, the Administrative
Agent, the Collateral Agent and the Co-Agent have executed this Fourth
Amendment as of the date first above written.

                                        APACHE CORPORATION


                                        By:/s/ CLYDE E. MCKENZIE 
                                        Name:  Clyde E. McKenzie            
                                        Title:  Vice President and Treasurer





                                       5
<PAGE>   7
                                THE FIRST NATIONAL BANK OF CHICAGO, 
                                Individually and as Administrative Agent
                                and Collateral Agent


                                By:/s/ T. THOMAS CHENG
                                Title: Vice President





                                CHEMICAL BANK, as Co-Agent


                                By:/s/ R. POTTER
                                Title: Managing Director                 





                                BANK OF MONTREAL, Individually and as 
                                Lead Manager


                                By:/s/ ROBERT ROBERTS
                                Title: Director





                                NATIONSBANK, Individually and as Lead Manager


                                By:/s/ JO A. TAMALIS                    
                                Title: Senior Vice President             





                                TEXAS COMMERCE BANK, N.A.


                                By:/s/ LORI VETTERS                     
                                Title: Vice President                   





                                       6
<PAGE>   8
                                CHRISTIANIA BANK OF KREDITKASSE


                                By:/s/ DEBRA DICKAHUTH                  
                                Title: Vice President                   

                                By:/s/ JAHN O. ROISING                  
                                Title: Vice President                   




                                THE BANK OF NOVA SCOTIA


                                By:/s/ M. VANOTTERLOO                   
                                Title: Vice President                   





                                THE CHASE MANHATTAN BANK, N.A.


                                By:/s/ BETTYLOU J. ROBERT
                                Title: Vice President





                                MIDLAND BANK PLC, NEW YORK BRANCH


                                By:/s/ PETER G. R. DODDS                
                                Title: Executive Director               




                                ROYAL BANK OF CANADA
                                GRAND CAYMAN (NORTH AMERICAN #2) BRANCH


                                By:/s/ MICHAEL A. COLE                  
                                Title: Manager                          





                                       7
<PAGE>   9
                                NBD BANK, N.A.


                                By:/s/ DOUGLAS R. LIFTMAN
                                Title: 2nd Vice President





                                BANQUE INDOSUEZ


                                By:/s/ N. M. GAETZ                      
                                Title: Senior Vice President            


                                By:/s/ EDWARD J. GILLIARD                
                                Title: Vice President                   





                                BANQUE PARIBAS


                                By:/s/ D. W. MALEY, JR.                 
                                Title: Senior Vice President            


                                By:/s/ KARIM RASHID                     
                                Title: Assistant Treasurer              




                                CIBC, INC.


                                By:/s/ JULIA COLLINS                   
                                Title: Vice President                  





                                CENTRAL BANK DENVER


                                By:/s/ MONTE E. DECKERD
                                Title: Vice President





                                       8
<PAGE>   10
                                THE FIRST NATIONAL BANK OF BOSTON


                                By:/s/ MICHAEL KANE                     
                                Title: Director                         





                                THE FUJI BANK, LIMITED - HOUSTON AGENCY


                                By:/s/ SOICHI YOSHIDA                   
                                Title: Vice President & Manager         





                                BANK OF AMERICA NATIONAL TRUST
                                AND SAVINGS ASSOCIATION
                                as successor by merger to Security
                                Pacific National Bank


                                By:/s/ JOHN ROBINSON                    
                                Title: Vice President                    




                                SOCIETE GENERALE, SOUTHWEST AGENCY

                                
                                By:/s/ RICHARD A. ERBERT                
                                Title: Vice President                   





                                UNION BANK


                                By:/s/ RICHARD P. DEGREY                
                                Title: Vice President                   





                                       9
<PAGE>   11
                                 UNITED BANK OF DENVER NATIONAL ASSOCIATION


                                 By:/s/ TOM FONCANNON                    
                                 Title: Vice President                   





                                 ABN-AMRO BANK N.V. - HOUSTON AGENCY


                                 By:/s/ MICHAEL N. OAKES
                                 Title: Vice President


                                 By:/s/ M. TRIBOLET                      
                                 Title: Vice President                   





                                 MORGAN GUARANTY TRUST COMPANY OF NEW YORK


                                 By:/s/ STEVEN A. TULIP                  
                                 Title: Vice President                   





                                 J.P. MORGAN DELAWARE


                                 By:/s/ PHILIP S. DETJENS
                                 Title: Vice President





                                 CITIBANK, N.A.

                                 
                                 By:/s/ CAROLYN R. BODMER                 
                                 Title: Vice President                   





                                       10
<PAGE>   12
                         EXHIBIT A TO FOURTH AMENDMENT
                    TO AMENDED AND RESTATED CREDIT AGREEMENT


                           CONSENT AND ACKNOWLEDGMENT


         The undersigned, by its signature hereto, acknowledges and agrees to
the terms and conditions of that certain Fourth Amendment to Amended and
Restated Credit Agreement dated as of July 13, 1993 (the "Amendment").  The
undersigned acknowledges and reaffirms its obligations owing to the Lenders,
the Administrative Agent, the Collateral Agent and the Co-Agent under its
Guaranty and agrees that such Guaranty shall remain in full force and effect.
Although the undersigned has been informed by the Company of the matters set
forth in the Amendment, and the undersigned has acknowledged and agreed to
same, the undersigned understands that the Lenders have no duty to notify the
undersigned or to seek the undersigned's acknowledgment or agreement, and
nothing contained herein shall create such a duty as to any transactions
hereafter.

         Capitalized terms not otherwise defined herein shall have the meanings
assigned to such terms in the Amended and Restated Credit Agreement, dated as
of April 15, 1992, by and among Apache Corporation, the various commercial
lending institutions parties thereto, The First National Bank of Chicago, as
Administrative Agent and Collateral Agent, and Chemical Bank, as Co-Agent, as
amended.


                                        MW PETROLEUM CORPORATION



                                        By:/s/ CLYDE E. MCKENZIE 
                                        Name:  Clyde E. McKenzie            
                                        Title: Vice President and Treasurer





                                       11

<PAGE>   1
                                                                 Exhibit 10.6



                      HADSON ENERGY RESOURCES CORPORATION

                      SECOND AGREEMENT TO CREDIT AGREEMENT

Bank of Montreal
Chicago, Illinois

Gentlemen:

        We refer to the Credit Agreement dated as of December 18, 1990 as
amended and currently in effect between us (the "Credit Agreement"),
capitalized terms used without definition below to have the same meanings
herein as they have in the Credit Agreement.  Upon your acceptance hereof in
the space provided for that purpose below and as of the dates provided for
below, the Credit Agreement and the Revolving Credit Note shall be amended as
follows:

        1. Section 1.2 (the Term Credit).  The third sentence of Section 1.2 of
the Credit Agreement shall be amended by striking the word "nine" appearing
therein and by substituting the word "five" therefor.

        2. Section 3.1 (Commitment Fee).  Section 3.1 of the Credit Agreement
shall be amended by striking the fraction "1/2" appearing therein and
substituting the fraction "3/8" therefor.

        3. Section 8.5(a) (Financial Reports).  Section 8.5(a) of the Credit
Agreement shall be amended and as so amended shall be restated in its entirety
to read as follows:

        "(a)  as soon as available, and in any event within 60 days after the 
        close of each quarterly fiscal period of the Company, a copy of the 
        balance sheet, statement of earnings and statement of changes in cash 
        flow of the Company and its Subsidiaries as of the last day of such 
        period (in the case of the balance sheet) and for the fiscal year to 
        date ending as of the last day of such period (in the case of the other
        statements) prepared on a consolidated basis and certified to by the 
        president, chief financial officer, chief accounting officer or vice
        president and treasurer thereof with such certificate to also (i) 
        state that the signer thereof has reexamined the provisions of this 
        Agreement and that no Default or Event of Default has occurred or is 
        continuing or if any of such has occurred or is continuing stating the
        nature thereof and the action, if any, which the Company proposes to 
        take with respect thereto, (ii) set forth a computation in reasonable
        detail of compliance with the proviso to Section 8.8 hereto, Section 
        8.10(h) hereof and Sections 8.9, 8.13 and 8.14 hereof, (iii) include a
        statement of the current adjusted valuation of the principal balance of
        the Petroleum Notes and (iv) include a statement of all sales of 
        Borrowing Base Assets during the fiscal year to date ending as of the 
        last day of such period;"

                                      1

<PAGE>   2
        4.  Section 8.5(c) (Financial Reports).  Section 8.5(c) of the Credit
Agreement shall be amended by deleting the phrase "on a month by month basis"
appearing in line 2 thereof and by deleting the phrase "by month and" in the
parenthetical clause at the end thereof.

        5. Section 10 (Definition of the term "Applicable Base Rate Margin"). 
The definition of the term "Applicable Base Rate Margin" appearing in Section
10 of the Credit Agreement shall be amended and as so amended shall be restated
in its entirety to read as follows:

         "The term "Applicable Base Rate Margin" shall mean 0% per annum
         when applied to the indebtedness evidenced by the Revolving Credit
         Notes and 1/4 of 1% per annum when applied to the indebtedness
         evidenced by the Term Credit Notes, provided however that from and 
         after the occurrence of an Event of Default, the term "Applicable 
         Base Rate Margin" shall mean 2% per annum when applied to the 
         indebtedness evidenced by the Revolving Credit Notes and 2-1/4% per 
         annum when applied to the indebtedness evidenced by the Term Credit 
         Notes."

        6. Section 10 (Definition of the term "Applicable CD Rate Margin"). 
The definition of the term "Applicable CD Rate Margin" appearing in Section 10
of the Credit Agreement shall be amended and as so amended shall be restated in
its entirety to read as follows:

         "The term "Applicable Base Rate Margin" shall mean for each Interest 
         Period applicable to an Adjusted CD Rate Portion (i) 1-1/8% per annum
         if as of the first day of such Interest Period the Outstandings are 
         equal to or less than 50% of the Borrowing Base as most recently 
         determined by the Banks, (ii) 1-1/4% per annum if as of the first day 
         of such Interest Period the Outstandings exceed 50% but are less than
         75% of the Borrowing Base as most recently determined by the Banks 
         and (iii) 1-3/8% per annum if as of the first day of such Interest 
         Period the Outstandings equal or exceed 75% of the Borrowing Base as 
         most recently determined by the Banks; provided, however, that 
         (aa) the Applicable CD Rate Margin for any CD Rate Portion evidenced 
         by the Term Credit Notes shall be the rate per annum determined 
         pursuant to the foregoing plus 1/4 of 1% per annum, (ab) from and 
         after the occurrence of an Event of Default the Applicable CD Rate 
         Margin shall be the rate per annum determined pursuant to all of the 
         foregoing (including the foregoing proviso) plus the rate of 2% per 
         annum and (ac) through December 31, 1994 (but not thereafter) the 
         Applicable CD Rate Margin shall be reduced by 1/8 of 1% per annum 
         from such margin as computed pursuant to the applicable foregoing 
         provisions of this definition."

        7. Section 10 (Definition of the term "Applicable LIBOR Rate Margin"). 
The definition of the term "Applicable LIBOR Rate Margin" appearing in Section
10 of the Credit Agreement shall be amended and as so amended shall be restated
in its entirety to read as follows:





                                       2
<PAGE>   3
         "The term "Applicable LIBOR Rate Margin" shall mean for each
         Interest Period applicable to a LIBOR Portion (i) 7/8 of 1% per annum
         if as of the first day of such Interest Period the Outstandings are
         equal to or less than 50% of the Borrowing Base as most recently
         computed by the Banks, (ii) 1% per annum if as of the first day of
         such Interest Period the Outstandings exceed 50% but are less than 75%
         of the Borrowing Base as most recently determined by the Banks and
         (iii) 1-1/8% per annum if as of the first day of such Interest Period
         the Outstandings equal or exceed 75% of the Borrowing Base as most
         recently determined by the Banks; provided, however that (aa) the
         Applicable LIBOR Rate Margin for any LIBOR Portion evidenced by the
         Term Credit Notes shall be the rate per annum determined pursuant to
         the foregoing plus 1/4 of 1% per annum, (ab) from and after the
         occurrence of an Event of Default, the Applicable LIBOR Rate Margin
         shall be the rate per annum determined pursuant to all of the
         foregoing (including the foregoing proviso) plus the rate of 2% per
         annum and (ac) through December 31, 1994 (but not thereafter) the
         Applicable LIBOR Rate Margin shall be reduced by 1/8 of 1% per annum
         from such margin as computed pursuant to the applicable foregoing
         provisions of this definition."

        8. Section 10 (Definition of the term "Termination Date").  The
definition of the term "Termination Date" appearing in Section 10 of the Credit
Agreement shall be amended by striking the date "October 31, 1994" appearing
therein and by substituting the date "October 31, 1995" therefor.

        9. Section 10 (new definition).  Section 10 of the Credit Agreement
shall be amended by adding the following additional definition thereto:

         "The term "Outstandings" shall mean as of any time the same is
         to be determined the sum of the then outstanding principal balance of
         the Notes and the amount of all outstanding Letters of Credit."

        10.  The Revolving Credit Note.  The first paragraph of the Revolving
Credit Note heretofore issued to Bank of Montreal shall be amended by striking
the date "October 31, 1994" appearing therein and by substituting the date
"October 31, 1995" therefor.  If at any time Bank of Montreal requests the
issuance of a new revolving credit note to it in substitution for the Revolving
Credit Note currently outstanding, the Company agrees to issue such revolving
credit note to Bank of Montreal in the same form as the Revolving Credit Note
presently outstanding but with the foregoing amendment embodied therein upon
surrender of the presently outstanding Revolving Credit Note marked
"Superseded".

        11.  Exhibit B.  The first paragraph of Exhibit B to the Credit
Agreement is hereby amended by striking the word "nine" appearing therein and
by substituting the word "five" therefor.

        12.  Section 12.7 (Notices).  Section 12.7 of the Credit Agreement
shall be amended by striking the phrase "101 Park Avenue, Suite 1400, Oklahoma
City, Oklahoma 73126,





                                       3
<PAGE>   4
Attention:  William C. Rankin" and by substituting the following therefor
"2000 Post Oak Boulevard, Suite 100, Houston, Texas 77056-4400, Attention:
Daniel D. Hawk".

        Except as specifically amended hereby all of the terms, conditions and
provisions of the Credit Agreement and Revolving Credit Note shall stand and
remain unchanged and in full force and effect.  No reference to this Second
Amendment to Credit Amendment need be made in any instrument or document at any
time referring to the Credit Agreement or Revolving Credit Note, a reference to
the Credit Agreement or Revolving Credit Note in any of such to be deemed to be
a reference to the Credit Agreement or Revolving Credit Note as amended hereby.
This amendment shall be effective as of the date appearing immediately above
the signature of the Company hereon except that the amendment to Section 3.1
hereof shall be effective for all computations of the commitment fee accruing
from and after December 1, 1993, the amendment to the definition of the term
"Applicable Base Rate Margin" shall be effective  from and after December 1,
1993 and the amendments to definition of the terms "Applicable CD Rate Margin"
and "Applicable LIBOR Rate Margin" shall become effective for all LIBOR
Portions  and Adjusted CD Rate Portions created or continued through a new
Interest Period subsequent to the date hereof.  This Second Amendment to Credit
Agreement shall be construed in accordance with and governed by the laws of the
State of Illinois.

        Dated as of this 22nd day of December, 1993.


                        HADSON ENERGY RESOURCES CORPORATION

                        By:  /s/  Clyde E. McKenzie
                            __________________________________________________
                             Its Vice President

        Accepted and agreed to as of the date last above written.


                        BANK OF MONTREAL

                        By:  /s/  Robert Roberts
                            __________________________________________________
                            Its Director

        The undersigned confirms that it is aware of the terms and conditions
of this Second Amendment to Credit Amendment while it acknowledges that its
consent thereto is not required, it further acknowledges that it has no
objection to the terms and conditions thereof and that its Guaranty dated as of
December 18, 1990 of the indebtedness, obligations and liabilities of the
Company continues in full force and effect.

                        HADSON ENERGY LIMITED

                        By:  /s/ David Nevis Hayes
                            __________________________________________________
                            Its Managing Director





                                       4

<PAGE>   1
                                                                Exhibit 10.8



                             HADSON ENERGY LIMITED

                    SECOND AMENDMENT TO ACCEPTANCE AGREEMENT


Bank of Montreal
Chicago, Illinois

Gentlemen:

        We refer to the Acceptance Agreement dated as of June 6, 1991 as 
amended and currently in effect between us (the "Acceptance Agreement"), 
capitalized terms used without definition below to have the same meanings 
herein as they have in the Acceptance Agreement.  Upon  your acceptance 
hereof in the space provided for that purpose below, the Acceptance 
Agreement shall be amended as follows:

        1. Section 7.5(a) (Financial Reports).  Section 7.5(a) of the
Acceptance Agreement shall be amended and as so amended shall be restated 
in its entirety to read as follows:

         "(a)  as soon as available, and in any event within 60 days
         after the close of each quarterly fiscal period of the Company, a copy
         of the balance sheet, statement of earnings and statement of changes
         in cash flow of the Company and its Subsidiaries as of the last day of
         such period (in the case of the balance sheet) and for the fiscal year
         to date ending on the last day of such period (in the case of the
         other statements) prepared on a consolidated basis and certified to by
         the president, chief financial officer, chief accounting officer or
         vice president and treasurer thereof with such certificate to also (i)
         state that the signer thereof has reexamined the provisions of this
         Agreement and that no Default or Event of Default has occurred or is
         continuing or if any of such has occurred or is continuing stating the
         nature thereto and the action, if any, which the Company proposes to
         take with respect thereto and (ii) include a statement of all sales 
         of Borrowing Base Assets during the preceding twelve months;"

        2. Section 7.5(d) (Financial Reports).  Section 7.5(d) of the
Acceptance Agreement shall be amended and as so amended shall be restated in
its entirety to read as follows:

         "(d)  On or before the 15th day of each September and March a
         report showing the gross proceeds received by the Company and the
         Pledged Subsidiaries during the six-month period ending on the last
         day of the preceding June (in the case of reports due on or before
         September 15) or December (in the case of reports due on or before
         March 15) from the sale of oil and gas from the wells included in the
         Borrowing Base Assets and the quantities thereof sold (broken down (in
         the case of quantities only) by well and computed as to the aggregate
         interest of the  Company and the Pledged Subsidiaries) from each well,
         together with the gross amount of royalties and taxes paid or payable
         on all of such and a statement of operating expenses for all of such
         for the applicable six-month period."

                                        1
<PAGE>   2

        3. Section 9 (Definitions).

         "The term "Stamping Fee" shall mean 1.30% per annum computed on
         the face amount of each Acceptance for the period from the date of
         Acceptance to its maturity date; provided, however, that for Drafts 
         with an Acceptance Date falling after December 31, 1993, the Stamping 
         Fee shall be computed at the rate  of (i) 7/8 of 1% per annum if on 
         the Acceptance Date for the Draft in question  the outstanding face 
         amount of the Acceptances is 50% or less of the Borrowing Base as 
         most recently determined by the Banks, (ii) 1% per annum if on the
         Acceptance Date for the Draft in question the outstanding face amount
         of the Acceptances is greater than 50% but less than 75% of the
         Borrowing Base as most recently determined by the Banks and (iii)
         1-1/8% per annum if on the Acceptance Date for the Draft in question
         the outstanding face amount of the Acceptances is equal to or greater
         than 75% of the Borrowing Base as then most recently determined by the
         Banks."

        4. Section 11.7 (Notices).  Section 11.7 of the Acceptance Agreement
shall be amended by striking the phrase "at 101 Park Avenue, Suite 1400,
Oklahoma City, Oklahoma 73126, Attention:  William C. Rankin" and by
substituting the following therefor:  "2000 Post Oak Boulevard, Suite 100,
Houston, Texas 77056-4400, Attention:  Daniel D. Hawk".

        Except as specifically amended hereby all of the terms, conditions and
provisions of the Acceptance Agreement shall stand and remain unchanged and in
full force and effect.  No reference to this Second Amendment to Acceptance
Agreement need be made in any instrument or document at any time referring to
the Acceptance Agreement, a reference to the Acceptance Agreement in any of
such to be deemed to be a reference to the Acceptance Agreement as amended
hereby.  This Second Amendment to Acceptance Agreement shall be construed in
accordance with and governed by the laws of the State of Illinois.

        Dated and to become effective as of this 22nd day of December, 1993.


                             HADSON ENERGY LIMITED

                             By:  /s/ David Nevis Hayes
                                 ___________________________________________
                                 Its Managing Director

        Accepted and agreed to as of the date last above written.


                             BANK OF MONTREAL

                             By:  /s/  Robert Roberts
                                 ___________________________________________
                                 Its Director





                                       2
<PAGE>   3
        The undersigned confirms that it is aware of the terms and conditions
of the Second Amendment to Acceptance Agreement and while it acknowledges that
its consent thereto is not required, it further acknowledges that it has no
objection to the terms and conditions thereof and that their Guaranty is each
dated as of June 6, 1991 of the indebtedness, obligations and liabilities of
the Company continue in full force and effect.


                             HADSON ENERGY RESOURCES CORPORATION

                             By:  /s/  Clyde E. McKenzie
                                 ______________________________________________
                                 Its Vice President


                             HADSON AUSTRALIA DEVELOPMENT PTY., LIMITED

                             By:  /s/  David Nevis Hayes
                                 ______________________________________________
                                 Its Director


                             PETRO ENERGY LIMITED

                             By:  /s/  David Nevis Hayes
                                 ______________________________________________
                                 Its Director





                                       3

<PAGE>   1
                                                                Exhibit 10.14


                     FIRST AMENDMENT TO APACHE CORPORATION
                 CORPORATE ADMINISTRATIVE GROUP INCENTIVE PLAN


         On January 1, 1990, Apache Corporation (the "Company") enacted the
Corporate Administrative Group Incentive Plan (the "Plan").  Pursuant to
Section 8 of the Plan, the Company reserved the right and power to amend the
Plan at any time.  Pursuant to that right and power, the Plan is hereby
amended, effective as of April 10, 1990, as set forth below.

                                   AMENDMENTS

         1.      Paragraph number one is hereby amended in its entirety to 
provide as follows:

         Apache Corporation (the "Company") adopts this Corporate
         Administrative Group Incentive Plan (the "Plan") to provide incentives
         to administrative officers, directors and managers of the Company and
         its Affiliates to increase shareholder equity and maximize return on
         investment while increasing after-tax profits.  "Affiliate" is defined
         as any and all entities in which the Company has at least a 75%
         ownership interest of the shares having voting power for the election
         of directors.

         IN WITNESS WHEREOF, this first amendment has been executed this 22nd
day of October, 1990.

                                               APACHE CORPORATION
ATTEST:


/s/ ROBERT A. SEAVY                       By:  /s/ C. EUGENE DANIELS 
Assistant Secretary                            C. Eugene Daniels, Vice President


<PAGE>   1
                                                                Exhibit 10.16


                                   AMENDMENTS
                                     TO THE
               APACHE CORPORATION 401(K) RETIREMENT/SAVINGS PLAN

         THIS AMENDMENT is made this 31st day of December 1993 by Apache
Corporation, a Delaware corporation, to be effective as set forth below.

                                    RECITALS

1.       Apache Corporation maintains the Apache Corporation 401(k)
Retirement/Savings Plan (the "Plan").

2.       Section 10.4 of the Plan provides that Apache Corporation may modify
or amend the Plan at any time in any respect.  Pursuant to that right and power
the Plan is hereby amended as set forth below, effective as of the dates set
forth below.

                                   AMENDMENT

I.       AMENDMENTS RELATING TO ERISA Section  404(C) COMPLIANCE

A.       Effective January 1, 1994, the following definition shall be added to
Article I.

         "Account Owner" means a Participant who has an Account balance, an
         Alternate Payee who has an Account balance, or a beneficiary who has
         obtained an interest in the Account(s) of the previous Account Owner
         because of the previous Account Owner's death.

B.       Effective February 1, 1994, Section 2.3 shall be replaced in its
entirety by the following.

         2.3  Enrollment Procedure.

              Notwithstanding Sections 2.1 and 2.2, a Covered Employee shall
         not be eligible to participate in the Plan until after completing the
         enrollment procedures specified by the Committee.  Such enrollment
         procedures may, for example, require the Covered Employee to complete
         and sign an enrollment form or to complete a voice-response telephone
         enrollment.  The Covered Employee shall provide the initial investment
         direction, the address and date of birth of the Employee, and the
         name, address, and date of birth of each beneficiary of the Employee,
         the initial rate of the Participant Before-Tax Contributions, and any
         other information requested by the Committee.  An election to make
         Participant Before Tax Contributions shall not be effective until
         after the Covered Employee has properly completed the enrollment
         procedures.  The Committee may require that the enrollment procedure
         be completed a certain number of
<PAGE>   2
         days prior to the date that a Covered Employee actually begins to
         participate.

C.       Effective February 1, 1994, Article IX shall be replaced in its
entirety by the following.

                                   ARTICLE IX

                         Trust Agreement - Investments.

         9.1  Trust Agreement.

              Apache has entered into a Trust agreement to provide for the
         holding, investment and administration of the funds of the Plan.  The
         Trust agreement shall be part of the Plan, and the rights and duties
         of any individual under the Plan shall be subject to all terms and
         provisions of the Trust agreement.

         9.2  Expenses of Trust.

                          (a)     Except as provided in Subsection (b) below,
         all taxes upon or in respect of the Trust shall be paid by the Trustee
         out of the Trust assets, and all expenses of administering the Trust
         shall be paid by the Trustee out of the Trust assets, to the extent
         such taxes and expenses are not paid by the Company or the Account
         Owner.  No fiduciary shall receive any compensation for services
         rendered to the Plan if the fiduciary is being compensated on a full
         time basis by the Company.

                          (b)     All expenses of individually directed
         transactions in Trust assets, including without limitation the
         Trustee's transaction fee, brokerage commissions, transfer taxes,
         interest on insurance policy loans, and any taxes and penalties that
         may be imposed as a result of an individual's investment direction
         shall be assessed against the Account(s) of the Account Owner
         directing such transactions.

         9.3  Investments.

                          (a)     Section 404(c) Plan.  The Plan is intended to
         be a plan described in ERISA section 404(c).  To the extent that an
         Account Owner exercises control over the investment of his or her
         Accounts, no person who is a fiduciary shall be liable for any loss,
         or by reason of any breach, that is the direct and necessary result of
         the Account Owner's exercise of control.

                          (b)     Directed Investments.  Accounts shall be 
         invested, upon the written or telephone voice-response





                                     - 2 -
<PAGE>   3
         direction of each Account Owner, in any one or more of a series of
         investment funds designated by the Committee from time to time.  One
         or more such funds may, at the sole discretion of the Committee,
         consist of shares of Company Stock.  If so directed by Account Owners,
         up to 100% of the Accounts under the Plan may be invested in Company
         Stock.  The funds available for investment and the principal features
         thereof, including a general description of the investment objectives,
         the risk and return characteristics, and the type and diversification
         of the investment portfolio of each fund, shall be communicated to the
         Account Owners in the Plan from time to time.  Any changes in such
         funds shall be immediately communicated to all Account Owners.

                          (c)     Absence of Directions.  To the extent that an
         Account Owner fails to affirmatively direct the investment of his or
         her Accounts, the Committee shall direct the Trustee in writing
         concerning the investment of such Accounts.  The Committee shall act
         by majority vote.  Any dissenting member of the Committee shall,
         having registered his or her dissent in writing, thereafter cooperate
         to the extent necessary to implement the decision of the Committee.

                          (d)     Change in Investment Directions.  Account
         Owners may change their investment directions, with respect to
         investment of new contributions and with respect to the investment of
         existing amounts allocated to Accounts, every three months unless the
         Committee determines that more frequent changes in investment
         directions shall be made available with respect to one or more of the
         investment funds.  Such changes shall be effective, prospectively, as
         of the time established by the Committee.  The Committee shall
         establish procedures for giving investment directions, which shall be
         in writing and communicated to Account Owners.  For example, the
         procedures could permit an Account Owner to change the investment
         direction of new contributions as of the first day of every calendar
         quarter, provided that the Committee receives at least two weeks prior
         written notice; the procedures could also permit an Account Owner to
         change the investment direction of existing Account balances once in a
         calendar quarter, on any business day, by giving telephone
         voice-response instructions to the Trustee.

D.       Effective February 1, 1994, Article XIV shall be added to the end of
the Plan.





                                     - 3 -
<PAGE>   4
                                  ARTICLE XIV

                        Matters Affecting Company Stock

         14.1  Voting, Etc.

               The shares of Company Stock in Accounts, whether or not
         vested, may be voted by the Account Owner to the same extent as if
         duly registered in the Account Owner's name.  The Trustee or its
         nominee in which the shares are registered shall vote the shares
         solely as agent of the Account Owner and in accordance with the
         instructions of the Account Owner.  If no instructions are received,
         the Trustee shall vote the shares of Company Stock for which it has
         received no voting instructions in the same proportions as the Account
         Owners affirmatively directed their shares of Company Stock to be
         voted unless the Trustee determines that a pro rata vote would be
         inconsistent with its fiduciary duties under ERISA.  If the Trustee
         makes such a determination, the Trustee shall vote the Company Stock
         as it determines to be consistent with its fiduciary duties under
         ERISA.  Each Account Owner who has Company Stock allocated to his or
         her Accounts shall direct the Trustee concerning the tender (as
         provided below) and the exercise of any other rights appurtenant to
         the Company Stock.  The Trustee shall follow the directions of the
         Account Owner with respect to the tender.

         14.2  Notices.

               Apache shall cause to be mailed or delivered to each Account
         Owner copies of all notices and other communications sent to the
         Apache shareholders at the same times so mailed or delivered by Apache
         to its other shareholders.

         14.3  Retention/Sale of Company Stock and Other Securities.

               The Trustee is authorized and directed to retain the Company
         Stock and any other Apache securities acquired by the Trust except as
         follows:

                          (a)     In the normal course of Plan administration,
         the Trustee shall sell Company Stock to satisfy Plan administration
         and distribution requirements as directed by the Committee or in
         accordance with provisions of the Plan specifically authorizing such
         sales.





                                     - 4 -
<PAGE>   5
                          (b)     In the event of a transaction involving the
         Company Stock evidenced by the filing of Schedule 14D-1 with the
         Securities and Exchange Commission ("SEC") or any other similar
         transaction by which any person or entity seeks to acquire beneficial
         ownership of 50% or more of the shares of Company Stock outstanding
         and authorized to be issued from time to time under Apache's articles
         of incorporation ("tender offer"), the Trustee shall sell, convey, or
         transfer Company Stock pursuant to written instructions of Account
         Owners delivered to the Trustee in accordance with the following
         Sections 14.4 through 14.15.  For purposes of such provisions, the
         term "filing date" means the date relevant documents concerning a
         tender offer are filed with the SEC or, if such filing is not
         required, the date the Trustee receives actual notice that a tender
         offer has commenced.

                          (c)     If Apache makes any distribution of Apache
         securities with respect to the shares of Company Stock held in the
         Plan, other than additional shares of Company Stock (any such
         securities are hereafter referred to as "stock rights"), the Trustee
         shall sell, convey, transfer, or exercise such stock rights pursuant
         to written instructions of Account Owners delivered to the Trustee in
         accordance with the following Sections of this Article.

         14.4  Tender Offers.

                          (a)     Allocated Stock.  In the event of any tender
         offer, each Account Owner shall have the right to instruct the Trustee
         to tender any or all shares of Company Stock, whether or not vested,
         that are allocated to his or her Accounts under the Plan on or before
         the filing date.  The Trustee shall follow the instructions of the
         Account Owner.  The Trustee shall not tender any Company Stock for
         which no instructions are received.

                          (b)     Unallocated Stock.  The Trustee shall tender
         all shares of Company Stock that are not allocated to Accounts in the
         same proportion as the Account Owners directed the tender of Company
         Stock allocated to their Accounts unless the Trustee determines that a
         pro rata tender would be inconsistent with its fiduciary duties under
         ERISA.  If the Trustee makes such a determination, the Trustee shall
         tender or not tender the unallocated Company Stock as it determines to
         be consistent with its fiduciary duties under ERISA.





                                     - 5 -
<PAGE>   6
                          (c)     Suspension of Share Purchases.  In the event
         of a tender offer, the Trustee shall suspend all purchases of Company
         Stock pursuant to the Plan unless the Committee otherwise directs.
         Until the termination of such tender offer and pending such Committee
         direction, the Trustee shall invest available cash pursuant to the
         applicable provisions of the Plan and the Trust Agreement.

                          (d)     Temporary Suspension of Certain Cash
         Distributions.  Notwithstanding anything in the Plan to the contrary,
         no option to receive cash in lieu of Company Stock shall be honored
         during the pendency of a tender offer unless the Committee otherwise
         directs.

         14.5  Stock Rights.

                          (a)     General.  If Apache makes a distribution of
         stock rights with respect to the Company Stock held in the Plan and if
         the stock rights become exercisable or transferable (the date on which
         the stock rights become exercisable or transferable shall be referred
         to as the "exercise date"), each Account Owner shall determine whether
         to exercise the stock rights, sell the stock rights, or hold the stock
         rights allocated to his or her Accounts.  The provisions of this
         Section shall apply to all stock rights received with respect to
         Company Stock held in Accounts, whether or not the Company Stock with
         respect to which the stock rights were issued are vested.

                          (b)     Independent Fiduciary.  The Independent
         Fiduciary provided for in Section 14.15 below shall act with respect
         to the stock rights.  All Account Owner directions concerning the
         exercise or disposition of the stock rights shall be given to the
         Independent Fiduciary, who shall have the sole responsibility of
         assuring that the Account Owners' directions are followed.

                          (c)     Exercise of Stock Rights.  If, on or after
         the exercise date, an Account Owner wishes to exercise all or a
         portion of the stock rights allocated to his or her Accounts, the
         Independent Fiduciary shall follow the Account Owner's direction to
         the extent that there is cash or other liquid assets available in his
         or her Accounts to exercise the stock rights.  Notwithstanding any
         other provision of the Plan, each Account Owner who has stock rights
         allocated to his or her Accounts shall have a period of five business
         days following the exercise date in which he or she may give
         instructions to the Committee to liquidate any of the assets held in
         his or her Accounts (except shares of Company Stock or assets





                                     - 6 -
<PAGE>   7
         such as guaranteed investment contracts or similar investments), but
         only if he or she does not have sufficient cash or other liquid assets
         in his or her Accounts to exercise the stock rights.  The liquidation
         of any necessary investments pursuant to an Account Owner's direction
         shall be accomplished as soon as reasonably practicable, taking into
         account any timing restrictions with respect to the investment funds
         involved.  The cash obtained shall be used to exercise the stock
         rights, as the Account Owner directs.  Any cash that is not so used
         shall be invested in a cash equivalent until the next date on which
         the Account Owner may change his or her investment directions under
         the Plan.

                          (d)     Sale of Stock Rights.  On and after the
         exercise date, the Independent Fiduciary shall sell all or a portion
         of the stock rights allocated to Accounts, as the Account Owner shall
         direct.

         14.6  Other Rights Appurtenant to the Company Stock.

               If there are any rights appurtenant to the Company Stock,
         other than voting, tender, or stock rights, each Account Owner shall
         exercise or take other appropriate action concerning such rights with
         respect to the Company Stock, whether or not vested, that is allocated
         to their Accounts in the same manner as the other holders of the
         Company Stock, by giving written instructions to the Trustee.  The
         Trustee shall follow all such instructions, but shall take no action
         with respect to allocated Company Stock for which no instructions are
         received.  The Trustee shall exercise or take other appropriate action
         concerning any such rights appurtenant to unallocated Company Stock.

         14.7  Information to Truste.

               Promptly after the filing date, the exercise date, or any
         other event that requires action with respect to the Company Stock,
         the Committee shall deliver or cause to be delivered to the Trustee or
         the Independent Fiduciary, as appropriate, a list of the names and
         addresses of Account Owners showing (i) the number of shares of
         Company Stock allocated to each Account Owner's Accounts under the
         Plan, (ii) each Account Owner's pro rata portion of any unallocated
         Company Stock, and (iii) each Account Owner's share of any stock
         rights distributed by Apache.  The Committee shall date and certify
         the accuracy of such information, and such information shall be
         updated periodically by the





                                     - 7 -
<PAGE>   8
         Committee to reflect changes in the shares of Company Stock and other
         assets allocated to Accounts.

         14.8  Information to Account Owners.

               The Trustee or the Independent Fiduciary, as appropriate,
         shall distribute and/or make available to each affected Account Owner
         the following materials:

                          (a)     A copy of the description of the terms and
         conditions of any tender offer filed with the SEC on Schedule 14D-1,
         or any similar materials if such filing is not required, any material
         distributed to shareholders generally with respect to the stock
         rights, and any proxy statements and any other material distributed to
         shareholders generally with respect to any action to be taken with
         respect to the Company Stock.

                          (b)     If requested by Apache, a statement from
         Apache's management setting forth its position with respect to a
         tender offer that is filed with the SEC on Schedule 14D-9 and/or a
         communication from Apache given pursuant to 17 C.F.R.  240.14d-9(e),
         as amended.

                          (c)     An instruction form prepared by Apache and
         approved by the Trustee or the Independent Fiduciary, to be used by
         any Account Owner who wishes to instruct the Trustee to tender Company
         Stock in response to the tender offer, to instruct the Independent
         Fiduciary to sell or exercise stock rights, or to instruct the Trustee
         or Independent Fiduciary with respect to any other action to be taken
         with respect to the Company Stock.  The instruction form shall state
         that (i) if the Account Owner fails to return an instruction form to
         the Trustee by the indicated deadline, the Trustee will not tender any
         shares of Company Stock the Account Owner is otherwise entitled to
         tender, (ii) the Independent Fiduciary will not sell or exercise any
         right allocated to the Account except upon the written direction of
         the Account Owner, (iii) the Trustee or Independent Fiduciary will not
         take any other action that the Account Owner could have directed, and
         (iv) Apache acknowledges and agrees to honor the confidentiality of
         the Account Owner's directions to the Trustee.

                          (d)     Such additional material or information as
         the Trustee or the Independent Fiduciary may consider necessary to
         assist the Account Owner in making an informed decision and in
         completing or delivering the instruction form (and any amendments
         thereto) to the Trustee or the Fiduciary on a timely basis.





                                     - 8 -
<PAGE>   9
         14.9   Expenses.

                The Trustee and the Independent Fiduciary shall have the right
         to require payment in advance by Apache and the party making the
         tender offer of all reasonably anticipated expenses of the Trustee and
         the Independent Fiduciary, respectively, in connection with the
         distribution of information to and the processing of instructions
         received from Account Owners.

         14.10  Former Account Owners.

                Apache shall furnish former Account Owners who have received
         distributions of Company Stock so recently as to not be shareholders
         of record with the information furnished pursuant to Section 14.8.
         The Trustee and the Independent Fiduciary are hereby authorized to
         take action with respect to the Company Stock distributed to such
         former Account Owners in accordance with appropriate instructions from
         them.  If the Trustee does not receive appropriate instructions, it
         shall take no action with respect to the distributed Company Stock.

         14.11  No Recommendations.

                Neither the Committee, the Committee Fiduciary, the Trustee,
         nor the Independent Fiduciary shall express any opinion or give any
         advice or recommendation to any Account Owner concerning voting the
         Company Stock, any tender offer, stock rights, or the exercise of any
         other rights appurtenant to the Company Stock, nor shall they have any
         authority or responsibility to do so.  Neither the Trustee nor the
         Independent Fiduciary has any duty to monitor or police the party
         making a tender offer or Apache in promoting or resisting a tender
         offer; provided, however, that if the Trustee or the Independent
         Fiduciary becomes aware of activity that on its face reasonably
         appears to the Trustee or Independent Fiduciary to be materially
         false, misleading, or coercive, the Trustee or the Independent
         Fiduciary, as the case may be, shall promptly demand that the
         offending party take appropriate corrective action.  If the offending
         party fails or refuses to take appropriate corrective action, the
         Trustee or the Independent Fiduciary, as the case may be, shall
         communicate with affected Account Owners in such manner as it deems
         advisable.





                                     - 9 -
<PAGE>   10
         14.12  Trustee to Follow Instructions.

                          (a)     So long as the Trustee and the Independent
         Fiduciary, as the case may be, have determined that the Plan is in
         compliance with ERISA section 404(c), the Trustee or the Independent
         Fiduciary shall tender, deal with stock rights, and act with respect
         to any other rights appurtenant to the Company Stock, pursuant to the
         terms and conditions of the particular transaction or event, and in
         accordance with instructions received from Account Owners.  Except for
         voting, the Trustee or the Independent Fiduciary shall take no action
         with respect to Company Stock, stock rights, or other appurtenant
         rights for which no instructions are received, and such Company Stock,
         stock rights, or other appurtenant rights shall be treated like all
         other Company Stock, stock rights, or other appurtenant rights for
         which no instructions are received.  The Trustee, or if an Independent
         Fiduciary has been appointed, the Independent Fiduciary, shall vote
         the allocated Company Stock that an Account Owner does not vote as
         specified in Section 14.1.

                          (b)     If the Trustee or Independent Fiduciary
         determines that the Plan does not satisfy the requirements of ERISA
         section 404(c), the Trustee or Independent Fiduciary shall follow the
         instructions of the Account Owner with respect to voting, tender,
         stock rights, or other rights appurtenant to the Company Stock unless
         the Trustee or Independent Fiduciary determines that to do so would be
         inconsistent with its fiduciary duties under ERISA.  In such case, the
         Trustee or the Independent Fiduciary shall take such action as it
         determines to be consistent with its fiduciary duties under ERISA.

         14.13  Confidentiality.

                          (a)     The Committee shall designate one of its
         members (the "Committee Fiduciary") to receive investment directions
         and to transmit such directions to the Trustee or Independent
         Fiduciary, as the case may be.  The Committee Fiduciary shall also
         receive all Account Owner instructions concerning voting, tender,
         stock rights, and other rights appurtenant to the Company Stock.  The
         Committee Fiduciary shall communicate the instructions to the Trustee
         or the Fiduciary, as appropriate.

                          (b)     Neither the Committee Fiduciary, the Trustee,
         nor the Independent Fiduciary shall reveal or release any instructions
         received from Account Owners concerning the Company Stock to Apache,
         an Affiliated





                                     - 10 -
<PAGE>   11
         Entity, or the officers, directors, employees, agents, or
         representatives of Apache and Affiliated Entities, except to the
         extent necessary to comply with Federal or state law not preempted by
         ERISA.  If disclosure is required by Federal or state law, the
         information shall be disclosed to the extent possible in the aggregate
         rather than on an individual basis.

                          (c)     The Committee Fiduciary shall be responsible
         for reviewing the confidentiality procedures from time to time to
         determine their adequacy.  The Committee Fiduciary shall ensure that
         the confidentiality procedures are followed.  The Committee Fiduciary
         shall also ensure that the Independent Fiduciary provided for in
         Section 14.15 is appointed.

                          (d)     Apache, with the Trustee's cooperation, shall
         take such action as is necessary to maintain the confidentiality of
         Account records including, without limitation, establishment of
         security systems and procedures which restrict access to Account
         records and retention of an independent agent to maintain such
         records.  If an independent recordkeeping agent is retained, such
         agent must agree, as a condition of its retention by Apache, not to
         disclose the composition of any Accounts to Apache, an Affiliated
         Entity or an officer, director, employee, or representative of Apache
         or an Affiliated Entity.

                          (e)     Apache acknowledges and agrees to honor the
         confidentiality of the Account Owners' instructions to the Committee
         Fiduciary, the Trustee, and the Independent Fiduciary.  If Apache, by
         its own act or omission, breaches the confidentiality of Account Owner
         instructions, Apache agrees to indemnify and hold harmless the
         Committee Fiduciary, the Trustee, or the Independent Fiduciary, as the
         case may be, against and from all liabilities, claims and demands,
         damages, costs, and expenses, including reasonable attorneys' fees,
         that the Committee Fiduciary, the Trustee, or the Independent
         Fiduciary may incur as a result thereof.

         14.14  Investment of Proceeds.

                If Company Stock or the rights are sold pursuant to the tender
         offer or the provisions of the rights, the proceeds of such sale shall
         be invested in accordance with the provisions of the Plan and the
         Trust Agreement.





                                     - 11 -
<PAGE>   12
         14.15  Independent Fiduciary.

                Apache shall appoint a fiduciary (the "Independent Fiduciary")
         to act solely with respect to the Company Stock in situations which
         the Committee Fiduciary determines involve a potential for undue
         influence by Apache in connection with the Company Stock and the
         exercise of any rights appurtenant to the Company Stock.  If the
         Committee Fiduciary so determines, it shall give written notice to the
         Independent Fiduciary, which shall have sole responsibility for
         assuring that Account Owners receive the information necessary to make
         informed decisions concerning the Company Stock, are free from undue
         influence or coercion, and that their instructions are followed to the
         extent proper under ERISA.  The Independent Fiduciary shall act until
         it receives written notice to the contrary from the Committee
         Fiduciary.

II.      AMENDMENT TO CHANGE THE MATCHING FORMULA

A.       The first four sentences of Section 3.1(b) shall remain unchanged.
Effective February 1, 1994, the remainder of Section 3.1(b) shall be replaced
by the following.

         As of the last day of each pay period, the Committee shall allocate
         Company Matching Contributions (including such forfeitures occurring
         during the pay period that are treated as Company Matching
         Contributions pursuant to Section 5.5) to each Participant who made
         Participant Before-Tax Contributions during the pay period as follows.
         The Company Matching Contribution allocated to a Participant shall
         equal a "matching percentage" multiplied by that portion of the
         Participant Before-Tax Contributions for the pay period that do not
         exceed 6% of the Participant's Compensation for the pay period.  The
         matching percentage equals 100% unless one or more of the following
         conditions applies, in which case the matching percentage equals 50%.

                                  (i)      The Participant is younger than age
         59-1/2 on the first day of the pay period and the Participant has, in
         the six months preceding the pay period, sold Company Stock from any
         of his or her Accounts.  Sales prior to January 1, 1994 shall be
         ignored.

                                 (ii)      The Participant has elected to
         invest any portion of the pay period's Company Matching Contribution
         in an investment option other than Company Stock.  The matching
         percentage is 50% only to the extent that this condition applies.





                                     - 12 -
<PAGE>   13
                                (iii)      The Participant has elected to
         invest any portion of the pay period's Participant Before-Tax
         Contribution in an investment other than Company Stock.  The matching
         percentage is 50% only to the extent that this condition applies.  The
         matching percentage shall be applied first to the Participant
         Before-Tax Contributions that are invested in Company Stock.  For
         example, if Paragraphs (i) and (ii) do not apply, and if a Participant
         contributes 10% of Compensation as a Participant Before-Tax
         Contribution in the pay period and he or she elects to invest half the
         contribution in Company Stock and half in another investment option,
         then the Participant's allocation of Company Matching Contributions
         for the pay period will equal 100% of 5% of the pay period's
         Compensation plus 50% of 1% of the pay period's Compensation, for a
         total match of 5-1/2% of Compensation; the remaining Participant
         Before-Tax Contribution (of 4% of the Participant's Compensation) will
         not be matched.

III.     AMENDMENT TO ACCOMMODATE THE CAFETERIA PLAN.

A.       Effective January 1, 1994, the first sentence of Section 3.4(b) shall
replaced by the following.

                 If, as a result of a reasonable error in estimating
         Compensation, or as a result of the allocation of forfeitures, or as a
         result of other facts and circumstances as provided in the regulations
         under Code section 415, the Annual Additions to a Participant's
         Account(s) would, but for this Subsection, exceed the foregoing
         limits, the Annual Additions shall be reduced, to the extent
         necessary, in the following order:  unmatched Participant Before-Tax
         Contributions, then matched Participant Before-Tax Contributions and
         the corresponding Company Matching Contributions, and then Company
         Mandatory Contributions.

IV.      AMENDMENTS DEALING WITH CHANGES IN THE LAW.

A.       Effective January 1, 1993, the references to Code section 402(a)(8)
(in Sections 1.12(d) and 1.36 of the Plan) shall be changed to Code section
402(e)(3).

B.       Effective January 1, 1993, the following new section shall be added to
the Plan.

         6.6  Direct Rollover Election.

              This Section is effective January 1, 1993.  A Participant, an
         Alternate Payee who is the Spouse or former Spouse of the Participant,
         or a surviving Spouse of a deceased Participant (collectively, the





                                     - 13 -
<PAGE>   14
         "distributee") may direct the Trustee to pay all or any portion of his
         or her "eligible rollover distribution" to an "eligible retirement
         plan" in a "direct rollover."  Within a reasonable period of time
         before an eligible rollover distribution, the Committee shall inform
         the distributee of this direct rollover option, the appropriate
         withholding rules, other rollover options, the options regarding
         income taxation, and any other information required by Code section
         402(f).

                 An "eligible rollover distribution" is any distribution or
         in-service withdrawal other than (a) distributions required under Code
         section 401(a)(9), (b) distributions of amounts that have already been
         subject to federal income tax (such as defaulted loans or after-tax
         voluntary contributions), (c) installment payments in a series of
         substantially equal payments made at least annually and (i) made over
         a specified period of ten or more years, (ii) made for the life or
         life expectancy of the distributee, or (iii) made for the joint life
         or joint life expectancy of the distributee and his or her designated
         beneficiary, (d) a distribution to satisfy the limits of Code section
         415 or 402(g), (e) a distribution to satisfy the ADP, ACP, or multiple
         use tests, or (f) any other actual or deemed distribution specified in
         the regulations issued under Code section 402(c).

                 For a Participant or an Alternate Payee who is the Spouse or
         former Spouse of the Participant, an "eligible retirement plan" is an
         individual retirement account or annuity described in Code section
         408(a) or 408(b), an annuity plan described in Code section 403(a), or
         the qualified trust of a defined contribution plan that accepts
         eligible rollover distributions.  For a surviving Spouse of a deceased
         Participant, an "eligible retirement plan" is an individual retirement
         account or annuity.

                 A "direct rollover" is a payment by the Trustee to the
         eligible retirement plan specified by the distributee.

C.       Effective January 1, 1989, the following paragraph shall be added to
the end of Subsection 3.6(c).

                                 (iv)      Those vested Company Matching
         Contributions and those Participant Before-Tax Contributions that are
         taken into account for this ACP test for any Highly Compensated
         Employee may be returned to such Highly Compensated Employee, without
         the consent of either the Highly Compensated Employee or his or her





                                     - 14 -
<PAGE>   15
         Spouse, subject to the rules of Subsection (d).  Any such return of
         Participant Before-Tax Contributions or vested Company Matching
         Contributions shall be made within two and one-half months after the
         close of the Plan Year if possible, and in no event later than 12
         months after the close of the Plan Year.

D.       Effective January 1, 1989, the phrase "Section 3.5 or 3.7" in the
fourth sentence of Subsection 3.2(b) shall be replaced by the phrase "Section
3.4, 3.5, or 3.7."

E.       Effective January 1, 1989, subsection 3.8(d) shall be deleted.

F.       Effective January 1, 1989, the following sentence shall be added to
the end of Paragraph 6.5(a)(iv).

         However, distribution from a Participant Before-Tax Contribution
         Account shall not occur pursuant to this Paragraph until either the
         Participant has separated from service within the meaning of Code
         section 401(k)(2)(B)(i)(I) or the Participant has been affected by a
         corporate transaction described in Code section 401(k)(10)(A)(ii) or
         Code section 401(k)(10)(A)(iii).

V.       AMENDMENTS FOR QDROS.

A.       Effective January 1, 1993, Sections 6.1 and 6.2 shall be replaced in
their entirety by the following.

         6.1  Beneficiaries.

                          (a)     Each Account Owner shall file with the
         Committee a designation of the beneficiaries and contingent
         beneficiaries to whom the distributable amount (determined pursuant to
         Section 6.3) shall be paid in the event of his or her death.  In the
         absence of an effective beneficiary designation as to any portion of
         the distributable amount after a Participant dies, such amount shall
         be paid to the Participant's surviving Spouse, or, if none, to his or
         her estate.  In the absence of an effective beneficiary designation as
         to any portion of the distributable amount after any non-Participant
         Account Owner dies, such amount shall be paid to the Account Owner's
         estate.

                          (b)     A beneficiary designation may be changed by
         the Account Owner at any time and without the consent of any
         previously designated beneficiary.  However, if the Account Owner is a
         married Participant, his or her Spouse shall be his or her beneficiary
         unless his or her Spouse has consented to the designation of a
         different





                                     - 15 -
<PAGE>   16
         beneficiary.  To be effective, the Spouse's consent must be in
         writing, witnessed by a notary public, and filed with the Committee.
         Any such election shall be effective only as to the Spouse who signed
         the election.  Effective as of July 23, 1992, if a Participant has
         designated his or her Spouse as his or her beneficiary, and the
         Participant and that Spouse subsequently divorce, then the beneficiary
         designation shall be void and of no effect on the day such divorce is
         final.

         6.2  Consent.

                          (a)     Except for distributions identified in
         Subsection (b), distributions may be made only after the appropriate
         consent has been obtained under this Subsection.  Distributions to a
         Participant shall be made only with the Participant's consent to the
         manner of distribution and the time of distribution.  Distributions to
         a beneficiary of a deceased Participant shall be made only with the
         beneficiary's consent to the manner of distribution and the time of
         distribution.  Distributions to an Alternate Payee or his or her
         beneficiary shall be made as specified in the QDRO.  To be effective,
         the consent must be in writing, signed by the distributee, and filed
         with the Committee within 90 days before the distribution is to
         commence.  A consent once given shall be irrevocable after
         distribution has begun.  Nevertheless, if a distributee has elected to
         receive his or her distribution in the form of installments, he or she
         may elect to accelerate any or all remaining installments.

                          (b)     Consent is not required for the following
         distributions:

                                  (i)      Corrective distributions under
         Article III that are returned to the Participant because the
         contribution is not deductible by the Company or because the
         contribution would exceed the limits of Code sections 415(c)(1),
         415(e), 402(g), 401(k)(3), 401(m)(2), or 401(m)(9);

                                 (ii)      Distributions that are required to 
         comply with Code section 401(a)(9);

                                (iii)      Immediate cashouts of less than
         $3,500, if the aggregate value of the nonforfeitable portion of a
         Participant's Accounts is $3,500 or less (calculated in accordance
         with the applicable Treasury regulations) on the earliest date the
         Participant (or his or her beneficiary if the Participant has not
         received





                                     - 16 -
<PAGE>   17
         any distributions) may elect to receive a distribution under Section
         6.5 after the Participant has terminated employment;

                                 (iv)      Distributions pursuant to Code 
         section 401(a)(14); and

                                  (v)      Distributions after the later of the
         Participant's Normal Retirement Age or age 62, provided that the
         Participant has terminated employment before the distribution is made.

B.       Effective January 1, 1993, the phrase "Paragraphs (f)(ii) and
(f)(iii)" in Subsection 13.9(c) shall be replaced with the phrase "Subsection
(f)."

C.       Effective January 1, 1993, Subsection 13.9(d) shall be replaced in its
entirety with the following.

                          (d)     In the case of any payment before an Employee
         has separated from service, a Domestic Relations Order shall not be
         treated as failing to meet the requirements of Subsection (c) solely
         because such order requires that payment of benefits be made to an
         Alternate Payee (i) on or after the dates specified in Subsection (f),
         (ii) as if the Employee had retired on the date on which such payment
         is to begin under such order (but taking into account only the Account
         balance on such date), and (iii) in any form in which such benefits
         may be paid under the Plan to the Employee.  For purposes of this
         Subsection, the Account balance as of the date specified in the QDRO
         shall be the vested portion of the Employee's Account(s) on such date.

D.       Effective January 1, 1993, Subsection 13.9(f) shall be replaced in its
entirety with the following.

                          (f)     The Alternate Payee shall have the following
         rights under the Plan:

                                  (i)      An Alternate Payee shall receive a
         lump sum distribution of his or her Plan assets as soon as
         administratively practicable after the Committee determines that the
         Domestic Relations Order is a QDRO.

                                 (ii)      If the Alternate Payee cannot
         receive an immediate distribution of his or her entire interest in the
         Plan (which could occur if the Alternate Payee is awarded more than
         the distributable amount in Section 6.3), then the Alternate Payee
         shall receive an immediate lump sum distribution of the distributable
         amount.  The





                                     - 17 -
<PAGE>   18
         Alternate Payee's remaining interest in the Plan shall be distributed
         as soon as administratively practicable, in annual lump sums of the
         distributable amount on the first day of the year.  Upon the Alternate
         Payee's death, his or her interest in the Plan shall be distributed in
         a lump sum as soon as practicable.

                                (iii)      Distribution to an Alternate Payee
         must occur on or before the Participant's Required Beginning Date.

                                 (iv)      The Alternate Payee may bring claims
         against the Plan in the same manner as a Participant pursuant to
         Section 13.2.

VI.      AMENDMENTS DEALING WITH HERC.

A.       Effective January 1, 1994, the following paragraph shall be added to
the end of the Preamble to the Plan.

                 Each Appendix to this Plan is a part of the Plan document.  It
         is intended that an Appendix will be used to (1) describe which
         business entities are actively participating in the Plan, (2) describe
         any special participation, eligibility, vesting, or other provisions
         that apply to the employees of a business entity, (3) describe any
         special provisions that apply to Participants affected by a designated
         corporate transaction, and (4) describe any special distribution rules
         that apply to directly transferred benefits from other plans.

B.       Effective January 1, 1994, the following Appendix A shall be added to
the end of the Plan.





                                     - 18 -
<PAGE>   19
                                   APPENDIX A

                            PARTICIPATING COMPANIES

         The following Affiliated Entities were actively participating in the
         Plan as of the following dates:

                                         Participation             Participation
         Business                        Began As Of               Ended As Of
         --------                        -------------             -------------

         Apache International,           September 22, 1987            N/A
          Inc.

         Hadson Energy Resources         January 1, 1994               N/A
          Corporation

         Hadson Energy Limited           January 1, 1994               N/A

                           -- END OF APPENDIX A --
C.       Effective January 1, 1994, the following Appendix B shall be added to
the end of the Plan.

                                   APPENDIX B

                      HADSON ENERGY RESOURCES CORPORATION

                                  Introduction

                 Through a merger effective November 12, 1993, Apache now holds
         100% of the capital stock of Hadson Energy Resources Corporation
         ("HERC").  HERC and its wholly owned subsidiary, Hadson Energy Limited
         ("HEL"), maintained the Hadson Energy Resources Corporation Employee
         401(k) Plan (the "HERC Plan"), a profit sharing plan containing a cash
         or deferred arrangement.  The HERC Plan was terminated as of December
         31, 1993.  Amounts will be transferred from the HERC Plan to this Plan
         as soon as administratively feasible after the Internal Revenue
         Service issues a favorable ruling with respect to the termination of
         the HERC Plan.  The transferred amounts will be accounted for
         separately, and different distributional options will apply to them,
         as described below.  In addition, HERC and HEL have adopted this Plan,
         and Apache has approved their adoption, as of January 1, 1994 for
         HERC's and HEL's eligible employees.  The employees will be given
         credit in this Plan, for vesting and eligibility purposes, for their
         prior service with HERC and HEL.

                 This Appendix is intended to encompass all the protected
         benefits and optional forms of benefit, as





                                     - 19 -
<PAGE>   20
         required by Code section 411(d)(6), with respect to amounts
         transferred from the HERC Plan and shall be interpreted consistently
         with that intent.

                 Capitalized terms in this Appendix have the same meanings as
         those given to them in the Plan.

                                    Service

                 This Appendix applies to all individuals who are common-law
         employees of HERC or HEL ("Current HERC Employees") as of January 1,
         1994.  A Period of Service for a Current HERC Employee shall include
         any periods of employment with HERC, HEL, and any of HERC's
         subsidiaries.

                                 Participation

                 Notwithstanding Sections 2.1 and 3.1, a Current HERC Employee
         who is a Covered Employee shall be eligible to begin to make
         Participant Before-Tax Contributions, and shall be eligible to
         participate in the Plan with respect to the 6% Company Mandatory
         Contribution, on January 1, 1994.

                              Transfer of Accounts

                 The Trustee is authorized to accept the direct transfer of all
         assets from the trustee of the HERC Plan.  The assets may be
         transferred in kind or in cash, as determined by the Committee.  The
         Trustee shall accept a direct transfer of any participant loan from
         the HERC Plan; such loan shall continue to be administered according
         to the terms of its promissory note.  The Committee shall establish
         such procedures, rules, and regulations as it deems necessary or
         appropriate to accommodate the transfer of assets.  The Trustee shall
         separately account for all assets directly transferred to this Plan.
         The Trustee shall establish the following accounts for each individual
         whose account(s) are transferred to this Plan:  a Voluntary
         Contribution Account (containing participant after-tax contributions
         and the investment earnings thereon); a Salary Deferral Account
         (containing participant before-tax contributions and the investment
         earnings thereon); a QNEC/QMAC Account (containing qualified
         non-elective contributions, qualified matching contributions, and the
         investment earnings thereon); and a HERC Contributions Account
         (containing the employer's matching contributions, the employer's
         discretionary contributions, and the





                                     - 20 -
<PAGE>   21
         investment earnings thereon) (collectively, the "HERC Accounts").

                                 Distributions

                 Unless waived in writing by the Participant or other
         beneficiary after such person becomes entitled to a distribution from
         the Plan by reason of a Participant's death, Disability, retirement,
         or other termination of employment with the Company, or a termination
         or partial termination of the Plan, then in addition to and
         notwithstanding any other provisions of the Plan, the Participant or
         other beneficiary shall have the right to receive his or her vested
         interest in the balance of his or her HERC Accounts in the following
         optional forms and at the following times.  The annuity requirements,
         below, however, are automatic with respect to the HERC Account
         balances unless waived as provided for therein.

                 To the extent that this Appendix does not provide for an
         alternative or contrary requirement or procedure for distribution of a
         Participant's HERC Account, the provisions of the Plan shall control.
         For example, all of the consent and beneficiary designation provisions
         of the Plan govern the distribution of HERC Accounts to the extent not
         inconsistent with the annuity requirements below, and all
         distributions are subject to the direct rollover rules of Section 6.6.

                 Whether or not specifically stated hereinafter, the following
         provisions apply only to the HERC Account balances.

         1.      Death or Disability.

                 Distributions pursuant to the Plan provisions control in the
         case of distributions as a result of death or Disability, except to
         the extent that the annuity requirements below are applicable, and
         except that installment payments are not available.

         2.      Other than Death or Disability.

                 Distributions for reasons other than the Participant's death
         or Disability shall be made in accordance with the following:

                 A Participant who has attained age 59-1/2 may withdraw any
         vested amount from his or her HERC Accounts at any time, regardless of
         whether the Participant has terminated employment with HERC.





                                     - 21 -
<PAGE>   22
                  A Participant may elect to withdraw any vested amount from his
         or her HERC Accounts at any time after separating from service (within
         the meaning of Code section 401(k)(2)(B)(i)(I)) with Apache, HERC, and
         all Affiliated Entities.

                  A Participant may elect to withdraw any amount from his or her
         Voluntary Contributions Account at any time, regardless of whether the
         Participant has terminated employment with HERC.

                  A Participant younger than 59-1/2 who has not separated from
         service with Apache, HERC, and Affiliated Entities, may make a
         hardship withdrawal from his or her Salary Deferral Account under the
         same terms and conditions described in Section 7.1(b) of the Plan.

                  Notwithstanding any of the foregoing early distribution
         options, a Participant whose vested interest in his or her HERC
         Account balances are distributed pursuant to one of the options
         contained in this Paragraph 2 shall forfeit his or her nonvested
         interest in his or her HERC Account balances only as of the last day
         of the Plan Year in which the Participant incurs a one-year Lapse in
         Apache Employment.

                  All distributions made pursuant to this Paragraph 2 shall be
         made in a manner that is consistent with, and satisfies the provisions
         of, Paragraph 4 below, including, but not limited to, all notice and
         consent requirements of Code sections 417 and 411(a)(11) and the
         Treasury Regulations thereunder.

         3.       Qualified Single Life or Joint and Survivor Annuity.

                  (a)      Eligibility and Conditions.  Unless the Participant
         elects, as provided in 3(c), not to receive benefits in the form of a
         qualified joint and survivor annuity, benefits attributable to HERC
         Account balances will be paid in a form having the effect of a
         qualified joint and survivor annuity (as defined in 3(b)(2)) with
         respect to any Participant who (1) is entitled to a distribution, and
         (2) satisfies the marriage requirements provided in 3(d)(2).  In a
         similar fashion, if a Participant does not meet the marriage
         requirements, such benefits will be paid in a form having the effect
         of a single life annuity unless the Participant elects, similar to the
         election pursuant to 3(c) but without the spousal consent requirement,
         to waive the life annuity.





                                     - 22 -
<PAGE>   23
                  (b)     Definitions.  As used in this Paragraph

                          (1)     Life Annuity.  The term "life annuity" means
         an annuity that provides retirement payments and requires the survival
         of the Participant or the Participant's spouse as one of the
         conditions for any payment or possible payment under the annuity.

                          (2)     Qualified Joint and Survivor Annuity.  The
         term "qualified joint and survivor annuity" means an annuity for the
         life of the Participant with a survivor annuity for the life of the
         Participant's spouse which is one-half of the amount of the annuity
         payable during the joint lives of the Participant and his or her
         spouse.  A qualified joint and survivor annuity shall be the actuarial
         equivalent of a life annuity for the life of the Participant.  The
         Committee shall direct the Trustee to apply the entire vested amount
         in all of the Participant's HERC Accounts (whether vested before or
         upon death, including the proceeds of insurance contracts) to the
         purchase of an annuity contract that satisfies all of the requirements
         of this Paragraph 3 and to distribute the contract to the Participant.
         Payments to the spouse of a deceased Participant shall not be
         terminated or reduced because of such spouse's remarriage.

                          (3)     Normal Retirement Age.  The term "normal 
         retirement age" means the Participant's 65th birthday.

                          (4)     Annuity Starting Date.  The term "annuity
         starting date" means (i) the first day of the first period for which
         an amount is payable as an annuity, whether by reason of retirement or
         by reason of Disability, or (ii) in the case of a benefit not payable
         in the form of an annuity, the first day on which all events have
         occurred which entitled the Participant to such benefit.

                          (5)     Day.  The term "day" means a calendar day.

                 (c)      Election Not to Take Joint and Survivor Annuity.

                          (1)     In General.  Each Participant may elect, at
         any time during the election period described in 3(c)(3), not to
         receive a qualified joint and survivor annuity.  The election shall be
         in writing and clearly indicate that the Participant is electing to
         receive all of his or her benefits under the Plan in a form other than
         that of a qualified joint and survivor annuity.





                                     - 23 -
<PAGE>   24
                          (2)     Consent of Spouse.  An election under 3(c)(1)
         above shall not be effective unless (i) the Participant's spouse
         consents in writing to the election, (ii) the election designates a
         beneficiary (or a form of benefits) which may not be changed without
         spousal consent (or the consent of the spouse expressly permits
         designations by the Participant without any requirement of further
         consent by the spouse) and (iii) the spouse's consent acknowledges the
         effect of the election and the consent is witnessed by a Committee
         member or a notary public.  The spouse's consent shall be filed with
         the Committee at the same time that the Participant's election under
         3(c)(1) is filed with the Committee.  If a spousal consent is not
         filed together with the Participant's election, the election shall
         take effect nevertheless if it is established to the satisfaction of
         the Committee that the Participant is not married, the Participant's
         spouse cannot be located, or that other circumstances prescribed in
         the Treasury Regulations exist.  Any spousal consent or establishment
         that spousal consent cannot be obtained shall be effective only with
         respect to such spouse.

                          (3)     Election period.  The Participant shall have
         an election period which shall be a 90-day period ending on the
         annuity starting date.  If a Participant makes a request for
         additional information as provided in 3(c)(4) below on or before the
         last day of the election period, the election period shall be extended
         to the extent necessary to include the 90 calendar days immediately
         following the day the requested additional information is personally
         delivered or mailed to the Participant.

                          (4)     Information to be Provided by Plan 
         Administrator.

                                  (i)      The Plan Administrator shall provide
                 to the Participants, at the time and in the manner specified
                 in 3(c)(4)(ii), the following information, as applicable to
                 the HERC Account balances under the Plan, written in
                 nontechnical language:

                                           (A)     A general explanation of the
                 terms and conditions of the qualified joint and survivor
                 annuity; the Participant's right to make, and the effect of,
                 an election to waive the joint and survivor annuity form of
                 benefit; the right of the Participant's spouse to consent to
                 any election to waive the joint and survivor annuity; the
                 right





                                     - 24 -
<PAGE>   25
                 to revoke an election to waive; and the effect of such a 
                 revocation; and

                                           (B)     A general explanation of the
                 relative financial effect on a Participant's annuity of the
                 election.  Various methods may be used to explain such
                 relative financial effect, including information as to the
                 benefits the Participant would receive under the qualified
                 joint and survivor annuity stated as an arithmetic or
                 percentage reduction from a single life annuity; a table
                 showing the difference between a straight life annuity and a
                 qualified joint and survivor annuity in terms of a reduction
                 in dollar amounts or a table showing a percentage reduction
                 from the straight life annuity.  The notice and explanation
                 required by this 3(c)(4)(i) must also inform the Participant
                 of the availability of the additional information specified in
                 3(c)(4)(iii) and how such information may be obtained.

                                 (ii)      The method or methods used to
                 provide the information may vary.  If mail or personal
                 delivery is used, then, whether or not the information has
                 been previously provided, there must be a mailing or personal
                 delivery of the information by such time as to reasonably
                 assure that it will be received on a date that is no less than
                 30 days and no more than 90 days before the annuity starting
                 date.  If a method other than mail or personal delivery is
                 used to provide Participants with some or all of such
                 information, it must be a method that is reasonably calculated
                 to reach the attention of a Participant on or about the date
                 prescribed in the immediately preceding sentence and to
                 continue to reach the attention of such Participant during the
                 election period applicable to the Participant for which the
                 information is being provided (as, for example, by permanent
                 posting, repeated publication, etc.).

                                (iii)      The Plan Administrator must furnish
                 to a particular Participant, upon a timely written request, a
                 written explanation in nontechnical language of the terms and
                 conditions of the qualified joint and survivor annuity and the
                 financial effect upon the particular Participant's annuity of
                 making any election under this Paragraph.  Such financial
                 effect shall be given in terms of dollars per annuity payment.
                 The Plan Administrator need not comply with more than one





                                     - 25 -
<PAGE>   26
                 such request made by a particular Participant.  This
                 explanation must be personally delivered or mailed (first
                 class mail, postage prepaid) to the Participant within 30 days
                 from the date of the Participant's written request.

                          (5)     Election is Revocable.  Any election made
         under this 3(c) may be revoked in writing at any time during the
         specified election period, and after such election has been revoked,
         another election under this Paragraph may be made at any time during
         the specified election period.

                          (6)     Election by Surviving Spouse.  The spouse of
         a deceased Participant may elect to have the benefits attributable to
         HERC Account balances paid in a form other than a survivor annuity.
         The Plan Administrator must furnish to the spouse, within a reasonable
         amount of time after a written request has been made by the spouse, a
         written explanation in nontechnical language of the survivor annuity
         and any other form of payment which may be selected.  This explanation
         must state the financial effect (in terms of dollars) of each form of
         payment.  The Plan Administrator need not respond to more than one
         such request.

         (d)     Additional Plan Provisions.

                          (1)     Claim for Benefits.  As a condition precedent
         to the payment of benefits, a Participant must express in writing to
         the Plan Administrator the form in which he or she prefers benefits to
         be paid and provide all the information reasonably necessary for the
         payment of such benefits.  However, if a Participant files a claim for
         benefits with the Plan Administrator and provides the Plan
         Administrator with all the information necessary for the payment of
         benefits but does not indicate a preference as to the form for the
         payment of benefits, benefits attributable to HERC Account balances
         must be paid in the form of a qualified joint and survivor annuity if
         the Participant has attained normal retirement age unless such
         Participant has made an effective election not to receive benefits in
         such form.

                          (2)     Marriage Requirements.

                                  (i)      In General.  A joint and survivor 
                 annuity will be paid only if

                                           (A)     the Participant and his or 
                 her spouse have been married to each other throughout a





                                     - 26 -
<PAGE>   27
                 period of one year ending on the annuity starting date; and

                                           (B)     the Participant shall notify
                 the Plan Administrator of his or her marital status within 30
                 days after request is made for such information.

                                 (ii)      Special Rule.  If a Participant
                 marries within one year before his or her annuity starting
                 date and if the Participant and such spouse have been married
                 for at least a one year period that ends on or before the
                 Participant's date of death, the Participant and such spouse
                 shall be treated as having been married throughout the
                 one-year period ending on the Participant's annuity starting
                 date.

                          (3)        Effect of Participant's Death on an
         Election or Revocation of Election.  The effect of an election or a
         revocation of an election timely made under 3(c) shall not be altered
         by the death of the Participant within any particular time period
         after such election or revocation shall be made effective.

                 (e)      Amount of Benefits.  The amount of benefits shall be
         as provided in 3(b).

                 (f)      Commencement and Duration.  The monthly surviving
         spouse's benefit shall be payable to the spouse for life, beginning as
         of the first day of the calendar month coincident with or next
         following the Participant's death.

4.       Qualified Preretirement Survivor Annuity.

         (a)     Eligibility and Conditions.  Unless the Participant elects, as
provided in 4(c), to waive death benefits in the form of a qualified
preretirement survivor annuity, death benefits attributable to HERC Account
balances will be paid in a form having the effect of a qualified preretirement
survivor annuity (as defined in Paragraph 4(b)(2)) with respect to any
Participant who (1) dies prior to the annuity starting date, and (2) satisfies
the marriage requirement of 4(d).

         (b)     Definitions.  As used in this Paragraph

                 (1)      Life Annuity.  The term "life annuity" means an
annuity that provides retirement payments and requires the survival of the
Participant or the Participant's spouse as one of the conditions for any
payment or possible payment under the annuity.





                                     - 27 -
<PAGE>   28
                 (2)      Qualified Preretirement Survivor Annuity.  The term
"qualified preretirement survivor annuity" means an annuity for the life of the
surviving spouse of the Participant, which is the actuarial equivalent of 100%
of the Participant's HERC Account balance as of his or her date of death.  The
Committee shall direct the Trustee to purchase an annuity contract that
satisfies all of the requirements of this Paragraph 4 (provided that the
present value of the annuity contract is not less than 50% of the Participant's
vested amount in all of his or her HERC Accounts at his or her date of death,
whether vested before or upon death, including the proceeds of insurance
contracts) and to distribute the annuity contract to the surviving spouse.

                 (3)      Normal Retirement Age.  The term "normal retirement
age" means the Participant's 65th birthday.

                 (4)      Annuity Starting Date.  The term "annuity starting
date" means (i) the first day of the first period for which an amount is
payable as an annuity, whether by reason of retirement or by reason of
Disability or (ii) in the case of a benefit not payable in the form of an
annuity, the first day on which all events have occurred which entitled the
Participant to such benefit.

                 (5)      Day.  The term "day" means a calendar day.

         (c)     Election to Waive Qualified Preretirement Survivor  Annuity.

                 (1)      In General.

                          (i)     Each Participant may elect, during the
         election period described in 4(c)(3), to waive the payment of death
         benefits in the form of a qualified preretirement survivor annuity.

                         (ii)     The election shall be in writing and clearly
         indicate that the Participant is electing to waive the payment of
         death benefits in the form of a qualified preretirement survivor
         annuity.

                 (2)      Consent of Spouse.  An election under 4(c)(1) shall
         not be effective unless (i) the Participant's spouse consents in
         writing to the election, (ii) the election designates a beneficiary
         (or a form of benefits) which may not be changed without spousal
         consent (or the consent of the spouse expressly permits the
         designations by the Participant without any requirement of further
         consent by the spouse) and (iii) the spouse's consent acknowledges the
         effect of the election and the consent is witnessed by a Committee
         member or a notary public.





                                     - 28 -
<PAGE>   29
         The spouse's consent shall be filed with the Committee at the same
         time that the Participant's election under 4(c)(1) is filed with the
         Committee.  If a spousal consent is not filed together with the
         Participant'selection, the election shall take effect nevertheless if
         it is established to the satisfaction of the Committee that the
         Participant is not married, the Participant's spouse cannot be
         located, or that other circumstances prescribed in the Treasury
         Regulations exist.  Any spousal consent or establishment that spousal
         consent cannot be obtained shall be effective only with respect to
         such spouse.

                 (3)      Election period.  The Participant shall have an
         election period which shall be a period that ends the later of (i) the
         period beginning with the first day of the Plan Year in which the
         Participant attains age 32 and ending with the close of the Plan Year
         preceding the Plan Year in which the Participant attains age 35, (ii)
         a reasonable time after the individual becomes a Participant, (iii) a
         reasonable time after the preretirement survivor annuity ceases to be
         a fully subsidized benefit, (iv) a reasonable time after the joint and
         survivor rules become effective to the Participant or (v) a reasonable
         time after the Participant separates from service before attaining age
         35.

                 (4)      Information to be Provided by Plan Administrator.

                          (i)     The Plan Administrator shall provide to the
         Participants, at the time and in the manner specified in 4(c)(4), the
         following information, as applicable to the Plan, written in
         nontechnical language:

                                  (A)      A general explanation of the
         qualified preretirement survivor annuity; the Participant's right to
         make, and the effect of, an election to waive the preretirement
         survivor annuity form of death benefit; the right of the Participant's
         spouse to consent to the election to waive the preretirement survivor
         annuity; the right to revoke an election to waive; and the effect of
         such a revocation.

                                  (B)      A general explanation of the
         relative financial effect on a Participant's death benefits of the
         election.  Various methods may be used to explain such relative
         financial effect.





                                     - 29 -
<PAGE>   30
                         (ii)     The method or methods used to provide the
         information may vary.  If mail or personal delivery is used, then,
         whether or not the information has been previously provided, there
         must be a mailing or personal delivery of the information by such time
         as to reasonably assure that it will be received within the period
         commencing with the first day of the Plan Year in which the
         Participant attains age 32 and ending with the last day of the Plan
         Year preceding the Plan Year in which the Participant attains age 35.
         If a method other than mail or personal delivery is used to provide
         Participants with some or all of such information, it must be a method
         that is reasonably calculated to reach the attention of a Participant
         on or about the date prescribed in the immediately preceding sentence
         and to continue to reach the attention of such Participant during the
         election period applicable to the Participant for which the
         information is being provided (as, for example, by permanent posting,
         repeated publication, etc.).

                 (4)         Election is Revocable.  Any election made under
this Paragraph 4 may be revoked in writing at any time during the specified
election period, and after such election has been revoked, another election
under this Paragraph may be made at any time during the specified election
period.

                 (5)         Election by Surviving Spouse.  The surviving
spouse may elect to have benefits paid in a form other than a preretirement
survivor annuity.  The Plan Administrator must furnish to the spouse, within a
reasonable amount of time after a written request has been made by the spouse,
a written explanation in nontechnical language of the preretirement survivor
annuity and any other form of payment that may be selected.  The explanation
must state the financial effect (in terms of dollars) of each form of payment.
The Plan Administrator need not respond to more than one such request.

         (d)     Marriage Requirement.  A preretirement survivor annuity will
be paid only if the Participant and his or her spouse have been married to each
other throughout a period of one year ending on the date of the Participant's
death.

         (e)     Amount of Benefits.  The amount shall be as provided in 4(b).

         (f)     Commencement and Duration.  The monthly surviving spouse's
benefit shall be payable to the spouse for life, beginning as of the first day
of the calendar month coincident with or next following the Participant's
death.

                            -- END OF APPENDIX B --





                                     - 30 -
<PAGE>   31
         IN WITNESS WHEREOF, this Amendment has been executed the date and year
first set forth above.


                                              APACHE CORPORATION
Attest:



/s/ JAMES E. SLOAN                   By:      /s/ WILLIAM J. JOHNSON       
Assistant Secretary                           President





                                     - 31 -

<PAGE>   1
                                                                Exhibit 10.26


                               APACHE CORPORATION
                          EQUITY COMPENSATION PLAN FOR
                             NON-EMPLOYEE DIRECTORS


         Apache Corporation, a Delaware corporation (the "Company"), hereby
establishes the Apache Corporation Equity Compensation Plan for Non- Employee
Directors (the "Plan") for those directors of the Company who are neither
officers nor employees of the Company (the "Directors") and hereby authorizes a
maximum of  50,000 shares of the Company's common stock, par value $1.25 per
share (the "Common Stock") for issuance thereunder during the term of the Plan,
which shares shall consist entirely of treasury stock.  Each Director shall
receive automatic and non- discretionary grants of restricted stock
("Restricted Stock Awards") on the terms and conditions set forth under the
Plan.  Each Director receiving a Restricted Stock Award shall enter into an
agreement (a "Restricted Stock Agreement") in such form as the Board of
Directors of the Company (the "Board") or a duly authorized committee of the
Board (the "Committee") shall determine to be consistent with the provisions of
the Plan and which may contain additional terms and conditions relating to the
Restricted Stock Awards.  In the event of any inconsistency between the
provisions of the Plan and any Restricted Stock Agreement, the provisions of
the Plan shall govern.

         The Committee shall be responsible for the administration of the Plan.
However, the Committee shall have no authority, discretion or power to (i)
select the Directors who will receive Restricted Stock Awards, (ii) determine
the terms of the Restricted Stock Awards to be granted pursuant to the Plan,
the number of shares of Common Stock to be issued thereunder or the time at
which such Restricted Stock Awards are to be granted, (iii) establish the
duration and nature of Restricted Stock Awards, or (iv) alter any other terms
or conditions specified in the Plan, except to administer the Plan in
accordance with its terms.  Subject to the foregoing limitations, the Committee
is authorized to (A) interpret the Plan, (B) prescribe, amend and rescind rules
and regulations relating to the Plan, (C) provide for conditions and assurances
deemed necessary or advisable to protect the interests of the Company, and (D)
make all other determinations necessary or advisable for the administration of
the Plan, but only to the extent not contrary to the express provisions of the
Plan.  The Committee's authority shall include, but not be limited to, the
right to make equitable adjustments in the number or kind of shares subject to
outstanding Restricted Stock Awards, or which have been reserved for issuance
pursuant to the Plan but are not then subject to Restricted Stock Awards, to
reflect changes in the number or kind of outstanding shares of Common Stock due
to any stock dividend, stock split, merger, recapitalization or other
extraordinary or unusual event.

         Beginning on July 1, 1994, and on July 1 of each fifth year thereafter
through and including July 1, 2009 (each, an "Award Date"), each Director shall
receive a Restricted Stock Award of 1,000 shares of Common Stock.  Any Director
elected to the Board of Directors subsequent to an Award Date shall receive a
Restricted Stock Award of 1,000 shares of Common Stock on the next July 1
following the date of such election (a "Special Award Date"); provided,
however, that if such July 1 is an Award Date, such Award Date will constitute
such Director's Special Award Date.  No Restricted Stock Awards shall be
granted to any Director subsequent to July 1, 2009.
<PAGE>   2
         Restricted Stock Awards shall vest at the rate of 20 percent per year
on each of the first through the fifth anniversaries of each Award Date or
Special Award Date, as the case may be.  Restricted Stock Awards, whether
vested or unvested, may not be sold, assigned, pledged, hypothecated,
transferred or otherwise disposed of as long as a Director is serving as a
member of the Board.  All restrictions on Restricted Stock Awards shall lapse
on the first business day following the date on which a Director ceases to be a
member of the Board; provided, however, that the unvested portion of any
Restricted Stock Award shall be automatically forfeited at such time.

         Certificates issued pursuant to Restricted Stock Awards shall be
registered in the name of the recipient Director and shall bear an appropriate
restrictive legend referring to the terms, conditions and restrictions
applicable to such award.  Certificates issued pursuant to Restricted Stock
Awards shall be held by the Corporate Secretary of the Company until the award,
or portion thereof, has vested and all applicable restrictions thereon shall
have lapsed.  As a condition of any Restricted Stock Award, each Director shall
have delivered to the Corporate Secretary of the Company a stock power,
endorsed in blank, relating to the Common Stock issued pursuant to a Restricted
Stock Award.  A Director shall have all voting, dividend, liquidation and other
rights of a stockholder of the Company with respect to the shares of Common
Stock issued pursuant to any Restricted Stock Award, notwithstanding that all
or a portion of such award shall be unvested, subject to the restrictions
described in the preceding paragraph.

         The Board may at any time terminate, and from time to time may amend
or modify the Plan; provided, however, that no amendment or modification may
become effective without approval of such amendment or modification by the
stockholders of the Company, if stockholder approval is required to enable the
Plan to satisfy any applicable statutory or regulatory requirements, or if the
Company, on the advice of counsel, determines that stockholder approval is
otherwise necessary or desirable.  Notwithstanding the foregoing, the Plan
shall not be amended or modified more than once every six months, other than to
comport with changes in the Internal Revenue Code, the Employment Retirement
Income Security Act, or the rules and regulations promulgated thereunder.  The
Plan is expressly intended to comport with Rule 16b-3(c)(2)(ii) (or any
successor provision) as promulgated under the Securities Exchange Act of 1934,
as amended, and any ambiguities in the construction of the Plan or any
Restricted Stock Agreement shall be resolved so as to effectuate such intent.








                                       2
<PAGE>   3
                               APACHE CORPORATION
                          EQUITY COMPENSATION PLAN FOR
                             NON-EMPLOYEE DIRECTORS

                        RESTRICTED STOCK AWARD AGREEMENT


         This Agreement is made as of the 1st day of July, 1994, between Apache
Corporation, a Delaware corporation (the "Company"), and _______________
("Director").

         1.      Grant of Restricted Stock.  Pursuant to the Apache Corporation
Equity Compensation Plan for Non-Employee Directors (the "Plan"), the Company
hereby grants to Director, as of the grant date specified above, a restricted
stock award (a "Restricted Stock Award") of 1,000 shares of the Company's
common stock, par value $1.25 per share (the "Common Stock"), which number of
shares may be adjusted pursuant to Paragraph 6 below, subject to the terms and
conditions set forth in this Agreement and in the Plan.

         2.      Director Bound by Plan.  Attached is a copy of the Plan which
is incorporated herein by reference and made a part hereof.  Director
acknowledges receipt of a copy of the Plan and agrees to be bound by all the
terms and provisions thereof.  Capitalized terms used but not defined herein
shall have the meanings ascribed to them in the Plan.

         3.      Restrictions.  This Restricted Stock Award shall be subject to
the following restrictions:

                 (a)      Shares of Common Stock issued pursuant to this
Restricted Stock Award may not be sold, assigned, transferred, pledged,
hypothecated or otherwise disposed of by Director until the first business day
following the date on which Director ceases to be a member of the Board.  The
Common Stock will only be transferable to the extent such shares are vested and
not forfeited in accordance with Paragraphs 3(b) and 3(c) below.

                 (b)      This Restricted Stock Award shall vest in accordance
with the following schedule as long as Director shall continue to serve as a
member of the Board:

<TABLE>
<CAPTION>
                                                                        Cumulative
                          Date                                         Shares Vested
                          ----                                         -------------
      <S>                                                                   <C>
                 Prior to July 1, 1995                                          0
      After July 1, 1995 and prior to July 1, 1996                            200
      After July 1, 1996 and prior to July 1, 1997                            400
      After July 1, 1997 and prior to July 1, 1998                            600
      After July 1, 1998 and prior to July 1, 1999                            800
                   After July 1, 1999                                       1,000
</TABLE>

                 (c)      Any unvested portion of this Restricted Stock Award
shall be forfeited automatically when Director ceases to be a member of the
Board.
<PAGE>   4
         4.      Enforcement of Restrictions.

                 (a)      Each stock certificate issued in the name of Director
pursuant to this Restricted Stock Award shall bear the following restrictive
legend:

                 THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO THE
                 RESTRICTIONS CONTAINED IN A RESTRICTED STOCK AGREEMENT DATED
                 AS OF JULY 1, 1994 BY AND BETWEEN APACHE CORPORATION AND
                 _______________________, A COPY OF WHICH IS ON FILE AT THE
                 OFFICE OF THE CORPORATE SECRETARY OF THE COMPANY.

                 (b)      Director shall not be entitled to delivery of the
stock certificate which shall be held by the Corporate Secretary of the Company
until all restrictions thereon have lapsed.

                 (c)      Director hereby agrees to execute a blank stock power
with respect to the stock certificate representing the shares of Common Stock
issued pursuant to this Restricted Stock Award, and to deliver such stock power
to the Corporate Secretary of the Company.

         5.      Privileges of a Stockholder.  Director shall have all voting,
dividend, liquidation and other rights of a stockholder of the Company with
respect to the Common Stock issued pursuant to this Restricted Stock Award,
notwithstanding that all or a portion of such award shall be unvested, subject
to the restrictions set forth in Paragraph 3(a) above.

         6.      Adjustments.  If the Company shall at any time increase or
decrease the number of outstanding shares of Common Stock or change in any way
the rights and privileges of such shares by means of the payment of a stock
dividend or any other distribution upon such shares payable in Common Stock, or
through a stock split, subdivision, consolidation, combination,
reclassification or recapitalization involving the Common Stock, then in
relation to the Common Stock that is affected by one or more of the above
events, the numbers, rights and privileges of the shares of the Common Stock
issued pursuant to this Restricted Stock Award shall be increased, decreased or
changed in like manner as if they had been issued and outstanding, fully paid
and nonassessable at the time of such occurrence.  In the event there shall be
any other change in the number or kind of outstanding shares of Common Stock,
or of any stock or other securities into which the Common Stock shall be
changed or for which it shall have been exchanged, and if the Committee shall
in its discretion determine that such change equitably requires an adjustment
in the number or kind of shares issued pursuant to this Restricted Stock Award,
then such adjustments shall be made by the Committee and shall be effective for
all purposes of the Plan and this Restricted Stock Award.  Adjustments under
this Section 6 shall be made by the Committee, whose determinations with regard
thereto shall be final and binding upon Director.





                                       2
<PAGE>   5
         7.      Withholding of Tax.  To the extent required by applicable law
and regulation, each Director must arrange with the Company for the payment of
any federal, state or local income or other tax applicable to the shares of
Common Stock issued pursuant to this Restricted Stock Award before the Company
shall be required to deliver to Director a certificate for such Common Stock
free and clear of all restrictions under the Plan.

         8.      Plan Amendment, Modification and Termination.  The Board may
at any time terminate, and from time to time may amend or modify the Plan;
provided however, that no amendment or modification may become effective
without approval of the amendment or modification by the stockholders of the
Company, if stockholder approval is required to enable the Plan to satisfy any
applicable statutory or regulatory requirements, or if the Company, on the
advice of counsel, determines that stockholder approval is otherwise necessary
or desirable.  Notwithstanding the foregoing, the Plan shall not be amended or
modified more than once every six months, other than to comport with changes in
the Internal Revenue Code, the Employment Retirement Income Security Act, or
the rules and regulations promulgated thereunder.  No amendment, modification
or termination of the Plan shall in any manner materially adversely affect the
Restricted Stock Award granted pursuant to this Agreement without the consent
of Director.

         9.      Administration.  Any action taken or decision made by the
Company, the Board, or the Committee or its delegates arising out of or in
connection with the construction, interpretation or effect of the Plan or this
Agreement shall lie within its sole and absolute discretion, as the case may
be, and shall be final, conclusive and binding on Director and all persons
claiming under or through Director.  By accepting this Restricted Stock Award,
Director and all persons claiming under or through Director shall be
conclusively deemed to have indicated acceptance and ratification of, and
consent to, any action taken under the Plan by the Company, the Board, or the
Committee or its delegates.

         10.     Investment Representation.  Director hereby acknowledges that
the shares of Common Stock issued pursuant to this Restricted Stock Award shall
be acquired for investment without a view to distribution, within the meaning
of the Securities Act of 1933, as amended (the "Act"), and shall not be sold,
transferred, assigned, pledged or hypothecated in the absence of an effective
registration statement under the Act or an applicable exemption from the
registration requirements of the Act and any applicable state securities laws.

         11.     Listing and Registration of Common Stock.  This Restricted
Stock Award shall be subject to the requirement that, if at any time counsel to
the Company shall determine that the listing, registration or qualification of
the shares of Common Stock issued pursuant to this Restricted Stock Award upon
any securities exchange or under any state or federal law, or the consent or
approval of any governmental or regulatory body, is necessary as a condition
of, or in connection with, the issuance of shares of Common Stock thereunder,
this Restricted Stock Award may not be accepted in whole or in part unless such
listing, registration, qualification, consent or approval shall have been
effected or obtained on conditions acceptable to the Committee.  Nothing herein
shall be deemed to require the Company to apply for or to obtain such listing,
registration or qualification.





                                       3
<PAGE>   6
         12.     No Right to Continue as Director.  Nothing contained in the
Plan or in this Agreement shall interfere with or limit in any way the right of
the stockholders of the Company to remove Director from the Board pursuant to
the Bylaws or the Certificate of Incorporation of the Company, nor confers upon
Director any right to continue in the service of the Company.

         13.     Designation of Beneficiary.  Director may name a beneficiary
or beneficiaries to receive any vested portion of this Restricted Stock Award,
which he would be otherwise entitled to receive pursuant to this Agreement in
the event of his death while serving as a member of the Board, on a written
form to be provided by and filed with the Corporate Secretary of the Company,
and in a manner determined by the Committee in its discretion.  The Committee
reserves the right to review and approve beneficiary designations.  Director
may change his beneficiary or beneficiaries from time to time in the same
manner, unless he has made an irrevocable designation.  Any designation of
beneficiary under the Plan and this Agreement (to the extent it is valid and
enforceable under applicable law) shall be controlling over any other
disposition, testamentary or otherwise, as determined by the Committee in its
discretion.  If no designated beneficiary survives Director and is living on
the date on which any vested part of this Restricted Stock Award becomes
payable to Director's beneficiary, such award will be made to the legal
representatives of the Director's estate, and the term "beneficiary" shall be
deemed to include such person or persons.

         14.     Notices.  Any notice hereunder to the Company shall be
addressed to:  Apache Corporation, One Post Oak Central, 2000 Post Oak
Boulevard, Suite 100, Houston, Texas 77056-4400, Attention:  Corporate
Secretary, and any notice to Director shall be addressed to Director at
Director's last address on the records of the Company, subject to the right of
either party to designate at any time hereafter in writing some other address.
Any notice shall be deemed to have been duly given when delivered personally or
enclosed in a properly sealed envelope, addressed as set forth above, and
deposited (with first class postage prepaid) with the United States Postal
Service.

         15.     Counterparts.  This Agreement may be executed in one or
several counterparts, each of which shall constitute one and the same
instrument.

         16.     Binding Effect.  This Agreement shall be binding upon and
inure to the benefit of any successors to the Company and all persons lawfully
claiming under or through Director.

         17.     Governing Law.  The validity, construction, interpretation,
administration and effect of the Plan, and of its rules and regulations, and
rights relating to the Plan and to this Agreement, shall be governed by the
substantive laws, but not the choice of law rules, of the State of Texas.





                                       4
<PAGE>   7
         IN WITNESS WHEREOF, the Company and Director have executed this
Agreement as of the 1st day of July, 1994.

                                  APACHE CORPORATION                  
                                                                      
                                                                      
                                                                      
                                  By:      ________________________________
                                                                      
                                                                      
                                  Its:     ________________________________
                                                                      
                                                                      
                                                                      
                                                                      
                                  DIRECTOR                            


                                  _________________________________________
                                                 Signature

                                  _________________________________________
                                                Printed Name

                                  _________________________________________
                                            Social Security Number







                                       5

<PAGE>   1
                                                                Exhibit 10.30


                              CONSULTING AGREEMENT


         THIS AGREEMENT is between APACHE CORPORATION ("Apache") and JOHN A.
KOCUR ("Consultant").  The Effective Date of this Agreement is November 1,
1993.

                                    RECITALS

         1.      Consultant is engaged in an independent occupation,
profession, and/or business related to services to be performed for Apache; and

         2.      The parties wish to enter into a service relationship to be
governed by the terms and conditions set forth herein;

                              TERMS AND CONDITIONS

         THEREFORE, in consideration of the mutual promises set forth herein,
the sufficiency of which is hereby acknowledged, the parties agree as follows:

         1.      Term.  The term of this Agreement shall last from the
Effective Date until terminated by either party upon written notice.

         2.      Services to be Provided.  Consultant shall provide Apache with
professional legal services, as requested by Apache.

         3.      Termination.  Consultant's inability or failure to perform, or
its gross negligence in the performance of services under this Agreement shall
constitute a breach of this Agreement and allow for immediate termination
without notice.

         4.      Payment.  Apache shall pay Consultant at the rate of $25,000
per month or partial month worked.

         5.      Expenses.  Apache shall reimburse Consultant for all the
approved actual and reasonable expenses (such as travel, lodging and meals when
out-of-town) incurred in the course of performing services hereunder.

         6.      Contractual Relationship.  Consultant shall be considered at
all times an independent contractor.

         7.      CONSULTANT IS AND SHALL BE SOLELY LIABLE FOR ANY FEDERAL AND
STATE INCOME AND WITHHOLDING TAXES, FICA TAXES APPLICABLE TO THIS AGREEMENT OR
ANY SERVICES PROVIDED HEREUNDER.

         8.      Applicable Law.  This Agreement shall be interpreted in
accordance with the laws of the State of Texas.
<PAGE>   2
         9.      Severability of Terms.  If any provision of this Agreement
shall be deemed void or unenforceable, the remainder of this Agreement shall
remain in full force and effect.

         10.     Entire Agreement.  This Agreement represents the entire
agreement between the parties related to the services of Consultant, and no
representation, warranties, or other statements or promises have been made by
any party in connection with this Agreement.

         11.     Amendment.  This Agreement can be modified or amended only by
written agreement signed by both parties.


         APACHE CORPORATION                       CONSULTANT



By:  /s/ ROGER B. RICE                        /s/ JOHN A. KOCUR 
     Roger B. Rice                            John A. Kocur
     Vice President-Human Resources






<PAGE>   1
                                                               Exhibit 10.31

                             CONSULTING AGREEMENT


        This agreement is entered into between Apache Corporation ("Apache"), a
Delaware corporation, and George J. Morgenthaler ("Morgenthaler") effective as
of 6:00 p.m. CST on November 10, 1993.

                                   RECITALS

        Since February 23, 1987, Morgenthaler has served Apache with diligence
and integrity as an officer and employee.

        Apache and Morgenthaler wish to provide for the termination of
Morgenthaler's tenure as an officer and employee of Apache.

        Apache wishes to provide for continued service by Morgenthaler as a
consultant to Apache.

        Apache and Morgenthaler wish to establish standards of confidentiality
and conduct between them.

        Apache and Morgenthaler wish to fully and finally settle all other
rights, matters and claims that may existing between them.

                                  AGREEMENT

        For good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, Apache and Morgenthaler agree as follows:

        (1)     Resignation.  Effective 6:00 p.m. CST, November 10, 1993, 
                Morgenthaler's employment with Apache terminated and, as a 
                result, Morgenthaler resigns all positions as a director, 
                officer and committee member of Apache, its subsidiaries and 
                affiliated entities.            

        (2)     Temporary Employment.  From 7:00 a.m. CST, November 11, 1993, 
                through   6:00 p.m. CST, December 15, 1993 (the "Temporary 
                Employment Period"), Apache employs Morgenthaler as a 
                temporary employee at the pay rate of $17,083.33 per month 
                (pro-rated by the day).                           

        (3)     Consulting.  Apache engages Morgenthaler to render consulting 
                services  to Apache and its subsidiaries for a period 
                commencing December 16, 1993, and continuing through 
                December 15, 1995 (subject to early terminated as stated in 
                the next sentence, the "Consulting Period"). If Apache does 
                not pay 1993 incentive compensation bonuses to its executives 
                or provide for other additional compensation recognizing 1993 
                executive performance, then the Consulting Period shall 
                terminate  on August 15, 1995.
<PAGE>   2
(4)     Services.  During the Temporary Employment Period and the Consulting
        Period, Morgenthaler shall perform such consulting services as are
        reasonably requested by the Chief Executive Officer of Apache (the
        "CEO") and as are not inconsistent with Morgenthaler's prior duties and
        responsibilities as an officer of Apache.  Morgenthaler shall not be
        required to maintain any office hours, nor shall Morgenthaler be
        present at the offices of Apache except upon request of the CEO.

(5)     Other Activities.  Morgenthaler's obligation to render consulting
        services shall be subordinate to, and shall be rendered only to the
        extent there is no interference with, his other business, employment
        and personal activities.  Morgenthaler shall be free to accept
        full-time or part-time employment with any organization, and to engage
        in any business enterprise on his own behalf during the Consulting
        Period or thereafter, whether or not the organization or enterprise
        competes with Apache, so long as Morgenthaler complies with paragraphs
        (6) and (7) of this agreement.  If Morgenthaler desires to accept
        employment with another organization, and if that employment creates a
        professional conflict of interest for Morgenthaler, then Morgenthaler
        shall promptly inform Apache's CEO of that employment and Morgenthaler
        shall be automatically released from all obligations under paragraphs
        (3) and (4) of this agreement, but all other terms of this agreement,
        including those relating to payments and benefits to Morgenthaler,
        shall remain in effect.

(6)     Goodwill.  Morgenthaler shall generally foster, maintain and promote
        the goodwill of Apache, its subsidiaries, affiliates, and their
        respective directors, officers, employees and/or representatives, past
        and present.  Apache shall generally foster, maintain and promote the
        reputation and image of Morgenthaler.  Apache shall not hinder or
        discourage the future employment of Morgenthaler.

(7)     Confidentiality.  In addition to his fiduciary responsibilities and his
        responsibilities as an Officer and General Counsel of Apache and his
        responsibilities under the Texas Disciplinary rules of Professional
        Conduct not to disclose certain information of or relating to Apache,
        Morgenthaler shall maintain the confidentiality of, and shall not
        disclose, Apache's business dealings, trade secrets, supplier lists,
        customer lists, properties, geographic or financial areas of interest,
        exploration plans or techniques or any other confidential information
        of or relating to Apache, its subsidiaries, affiliates and their
        directors, officers, employees and/or representatives, past and
        present, and Morgenthaler shall not use such information in any manner,
        whether for his own benefit or for the benefit of any other person or
        entity, or to the detriment of Apache, its subsidiaries, affiliates and
        their directors, officers, employees and/or representatives, past and
        present or otherwise.




                                      2
<PAGE>   3
(8)     Monthly Payments.  On or before the 16th day of each calendar          
        month during the Consulting Period (commencing with December           
        16, 1993), Morgenthaler shall invoice Apache for services in           
        the amount of $17,083.33, and Apache shall pay Morgenthaler            
        the invoiced amount on or before the first day of the next             
        calendar month.  The invoiced amounts shall continue to be             
        paid without regard to Morgenthaler's employment by another            
        organization, his participation in a partnership, or his               
        engagement in business for his own account.  The invoiced              
        amounts shall continue to be paid if Morgenthaler is disabled,         
        and shall continue to be paid to Morgenthaler's estate, heirs,         
        and successors in the event of his death.  The invoiced                
        amounts shall continue to be paid if Morgenthaler is released          
        from his obligations under paragraphs (3) and (4) of this              
        agreement. Failure or tardiness by Morgenthaler in invoicing           
        Apache shall not waive or release Morgenthaler's right to              
        payment, but amounts invoiced more than five business days             
        late by Morgenthaler shall not be due until ten business days          
        after invoice.  Morgenthaler may invoice Apache for the                
        initial monthly payment prior to inception of the Consulting           
        Period.                                                                
         
(9)     Expense Reimbursement.  Subject to Apache's travel policies governing
        its executives, Apache shall reimburse Morgenthaler for all travel,
        airline, room, entertainment, meal, beverage, car rental and other
        out-of-pocket expenses incurred by Morgenthaler in the course of
        performing his consulting obligations under this agreement, provided
        that such consulting expenses are approved in advance by Apache.

(10)    Benefits.  During the Temporary Employment Period, Morgenthaler shall
        receive the same benefits as Apache provides its executive officers.
        During the Consulting Period, Apache shall:

        (a)      provide medical, dental and vision benefits to Morgenthaler
                 and his dependents to the same extent, and subject to the same
                 premium co-payments, as are extended to Apache executives; and

        (b)      provide life insurance and disability benefits (including
                 supplemental group life insurance) to Morgenthaler to the same
                 extent as extended to Apache executives;

        but the foregoing benefits shall terminate to the extent that
        replacement benefits are offered by an employer with which Morgenthaler
        accepts employment.  Apache shall not impair the cash value of any life
        insurance currently maintained by Apache for Morgenthaler, and that
        cash value shall remain the property of Morgenthaler.  Apache shall
        cause its employees, insurance carriers and agents to cooperate fully
        with Morgenthaler in managing and maintaining Morgenthaler's insurance
        coverage, in responding to Morgenthaler's insurance claims and in
        responding to Morgenthaler's inquiries concerning insurance coverages.





                                       3
<PAGE>   4
(11)    Plan Balances.  Apache shall cooperate in the prompt rollover of
        Morgenthaler's 401(k) account balances to an IRA account or other
        account designated by Morgenthaler.  On January 3, 1994, Apache shall
        disburse to Morgenthaler, or direct the disbursement to Morgenthaler
        of, the balance in Morgenthaler's non-qualified retirement plan
        account.

(12)    Options and Phantoms.  Except as provided in this paragraph,
        Morgenthaler's outstanding stock options and phantom stock units shall
        be governed by the terms of the Apache Corporation 1990 Stock Incentive
        Plan and the 1990 Phantom Stock Appreciation Plan (the "Phantom Plan")
        and the stock option agreements entered into between Morgenthaler and
        Apache.  On January 3, 1994, Apache shall pay Morgenthaler the sums due
        him under the Phantom Plan as a result of his November 10, 1993,
        Termination of Employment without Disqualification (as defined in the
        Phantom Plan).  Morgenthaler waives his right to payment on or before
        December 10, 1993, under the Phantom Plan.

(13)    Databases.  During the Consulting Period, Morgenthaler shall continue
        to have free access to and reasonable use of the business and legal
        databases now maintained by Apache and used by Morgenthaler as an
        executive of Apache.

(14)    Office Equipment.  Apache shall, on December 16, 1993, and in exchange
        for the payment of $2,000.00 to Apache by Morgenthaler, sell and convey
        to Morgenthaler the office equipment now in Morgenthaler's possession,
        being one cellular telephone, one telefax, one personal computer,
        software and one printer.

(15)    Consulting Payment.  On January 3, 1994, Apache shall pay Morgenthaler
        $352,000.00 as a non-refundable consulting payment.

(16)    Financing Planning.  Apache shall pay or reimburse Morgenthaler for
        personal tax and financial planning by Arthur Andersen & Co. during the
        Consulting Period as required to evaluate and plan the financial and
        tax impact of this agreement and termination of his employment and as
        required to prepare tax returns for 1993 and 1994.

(17)    Independent Contractor and Taxes.  Morgenthaler acknowledges that his
        engagement under this agreement is as an independent contractor and not
        as an employee of Apache or its subsidiaries or affiliates.
        Accordingly, Morgenthaler will be responsible for the payment of all
        income tax and other taxes on cash amounts payable to Morgenthaler, and
        Apache will not withhold any amounts from payments made under this
        agreement.  If the Internal Revenue Service asserts that Apache should
        have withheld federal income taxes and/or Morgenthaler's share of FICA
        taxes from such payments, Morgenthaler will reimburse Apache for any
        monies paid by Apache to the U.S. Government in compliance with such
        assertion, except for payments of interest or penalties.





                                       4
<PAGE>   5
(18)    Releases.  Morgenthaler releases Apache and each of its subsidiaries,
        affiliates and their respective directors, officers, employees and/or
        representatives, past and present (hereafter the "Company"), and the
        Company releases Morgenthaler, from any and all rights and claims
        arising in any way out of Morgenthaler's employment or the acts or
        omissions of the Company or Morgenthaler which occurred during the term
        of Morgenthaler's employment, or arose out of the termination of
        Morgenthaler's employment.  The Company and Morgenthaler further
        release and hold harmless each other from and against any and all
        claims against the other that they may have based on any negligent or
        intentional acts or omissions of any character whatsoever, whether
        related to Morgenthaler's employment or otherwise, including without
        limitation statements made by, to or about Morgenthaler or the Company,
        which occurred prior to the effective date of this agreement, whether
        known or unknown by the Company or Morgenthaler.  The foregoing release
        includes without limitation any rights and claims under state, federal,
        or local laws, including without limitation, the Age Discrimination in
        Employment Act, the Texas Commission on Human Rights Act and the common
        law of the states of Texas, Colorado and any other jurisdiction.
        Morgenthaler and the Company further agree that they will not institute
        any charge, complaint or litigation against the other based on such
        released rights and/or claims.  Apache indemnifies and holds harmless,
        and agrees to indemnify and hold harmless, Morgenthaler against any
        liability or expense, including attorneys' fees and costs, incurred by
        Morgenthaler in evaluating, defending, compromising, settling or
        satisfying any claim (excluding those actions determined to be
        violative of applicable criminal laws) brought by any person or
        organization that is included within the definition of Company but that
        is not a signatory to this agreement.  Notwithstanding the foregoing,
        the releases contained herein shall not apply to any rights that
        Morgenthaler may have under:

        (a)      Apache's 1990 Stock Incentive Plan and the Phantom Plan and
                 the option agreements issued under those plans to which
                 Morgenthaler is a party;

        (b)      Apache's 401(k) plan and non-qualified retirement plan;

        (c)      this agreement; or

        (d)      COBRA to receive continued medical insurance benefits.

(19)    Non-Assignability.  Neither this agreement nor any right or interest
        herein may be assigned or transferred by Apache or Morgenthaler without
        the other's written consent, except as to:

        (a)      the rights of Morgenthaler's estate, heirs and devisees to
                 certain benefits under this agreement; and





                                       5
<PAGE>   6
        (b)     the sale of all or substantially all of Apache's
                assets, or the merger or combination of Apache with
                another organization, if the asset purchaser or
                surviving organization assumes the full performance of
                Apache's obligations under this agreement, but Apache
                shall not be relieved of its obligations under this
                agreement by that assumption.

(20)    No Attachment.  Except as required by law, Morgenthaler's right to
        receive payments under this agreement shall not be subject to
        anticipation, commutation, alienation, sale, encumbrance, pledge,
        hypothecation, execution, attachment, levy, offset, deduction, setoff,
        condition, or assignment by operation of law, and any attempt,
        voluntary or involuntary, to effect such action shall be null and void.

(21)    Binding Effect.  This agreement shall bind and inure to the benefit of
        Morgenthaler, Apache and its subsidiaries and affiliates and their
        permitted successors and assigns.

(22)    Amendment, Modification, Waiver.  This agreement shall not be amended
        or modified except by an instrument in writing signed by the parties
        hereto.  No term of this agreement shall be deemed to have been waived,
        nor shall there be an estoppel against enforcement of any provision of
        this agreement, except by written instrument of the party charged with
        such waiver or estoppel.  No person or organization, including those
        within the definition of Company, not a party to this agreement or a
        permitted successor to a party to this agreement, shall be a
        third-party beneficiary of this agreement or entitled to enforce its
        terms.  Morgenthaler acknowledges that he has had at least 21 days to
        consider this agreement and has had legal advice with respect thereto.

(23)    Remedies.  Upon any material breach of this agreement by a party, the
        other party shall be entitled to seek damages for the breach, and/or
        shall be entitled to seek specific performance of this agreement.
        Morgenthaler and Apache acknowledge and confess that there is no
        adequate remedy at law for breach of obligations in this agreement
        other than obligations for the payment of money.  The prevailing party
        in any litigation shall be entitled to an award of attorneys' fees by
        the court.  Interest on sums due from one party to another shall bear
        interest at 18 percent per annum until paid.

(24)    No Other Benefits.  Except as provided in this agreement, Morgenthaler
        shall not be entitled to any pension, profit-sharing, bonus,
        disability, life insurance or similar plan or program of Apache,
        whether now existing or hereafter adopted for the benefit of Apache's
        employees or consultants.

(25)    Headings and Meanings.  The headings of paragraphs in this agreement
        are for convenience only, and should not be considered in construing or
        interpreting this agreement.





                                       6
<PAGE>   7
(26)    Governing Law.  This agreement has been executed and delivered in the
        State of Texas, and its validity, interpretation, performance and
        enforcement shall be governed by the laws of that State.

(27)    Notices.  Any notice contemplated or permitted by this agreement shall
        be delivered as follows:

                 To Apache or the Company
                 Raymond Plank
                 Chairman and Chief Executive Officer
                 Apache Corporation
                 2000 Post Oak Boulevard, Suite 100
                 Houston, Texas  77056

        The above addresses for notice may be changed by written notice from
        the changing party to the other party.

(28)    Revocation.  Morgenthaler may rescind this agreement by written notice
        to Apache delivered on or before 5:00 p.m. on the seventh day after is
        execution by Apache and Morgenthaler and delivery to Morgenthaler.  If
        no such notice of recision is timely received by Apache, the effective
        time of this agreement shall be as stated above.  Upon recision of this
        agreement, Morgenthaler shall repay to Apache all sums paid pursuant to
        this agreement except salary for services rendered by Morgenthaler
        prior to the effective time.


        /S/  GEORGE J. MORGENTHALER                        Dated: 12/15/93
        George J. Morgenthaler


        Apache Corporation

        By:     /S/  R. B. RICE                            Dated: 12/15/93

        Name:   Roger B. Rice                           

        Its:    Vice President                                   






                                       7

<PAGE>   1


                                                                   EXHIBIT 10.32

                              CONSULTING AGREEMENT


        THIS AGREEMENT is entered into between APACHE CORPORATION ("Apache"), a
Delaware corporation and Bijan Mossavar-Rahmani ("BM-R") effective March 15,
1994.

                                    RECITALS

        Since January 1, 1988, BM-R has served Apache with diligence and
integrity as an officer and employee.

        Apache and BM-R wish to provide for the termination of BM-R's tenure as
an officer and employee of Apache.

        Apache wishes to provide for continued service by BM-R as a consultant
to Apache.

        Apache and BM-R wish to establish standards of confidentiality and
conduct between them.

        Apache and BM-R wish to fully and finally settle all other rights,
matters and claims that may exist between them.


                                   AGREEMENT

        For good and valuable consideration, the receipt and sufficiency of
which are hereby acknowledged, Apache and BM-R agree as follows:

        1. Resignation.  Effective 6 P.M. Central Standard Time, March 15,
1994, BM-R's employment with Apache shall terminate and, as a result, BM-R
resigns all positions as director, officer and committee member of Apache, its
subsidiaries and affiliated companies except as set out in this agreement.  To
facilitate the intent of this agreement, BM-R shall be entitled to use the
title President of Apache International, Inc. but shall have no management
responsibilities or authority subsequent to the effective date of this
agreement.  BM-R shall also retain his position as a director of Compagnie des
Energies Nouvelles de Cote d'Ivoire and as president of Apache Cote d'Ivoire,
Inc.

        2. Consulting.  Apache engages BM-R to render consulting services to
Apache and its subsidiaries for the period commencing March 16, 1994 and
continuing through September 16, 1995 ("consulting period").  This period may
be extended by agreement of both parties in writing.

                                        1
<PAGE>   2
  
  
        3. Services.  During the consulting period, BM-R shall perform such
consulting  services as are reasonably requested by the Chief Operating Officer
of Apache ("the COO").  BM-R shall not be required to maintain any office
hours.  BM-R shall provide consulting services in an attempt to commercialize
Apache International, Inc.'s Australian gas via export and to continue to
represent Apache International, Inc. in negotiations towards realization of the
Foxtrot project in Cote d'Ivoire.  In carrying out his duties hereunder, BM-R
shall not enter into any new binding commitment on behalf of Apache
International, Inc. that is substantial or financially material without the
prior written consent of the COO.  The parties anticipate that BM-R's
performance of requested services hereunder will consume no more than half of
his available working time in any given month.  Apache will provide office
support services to BM-R in its Houston headquarters.

        4. Other Activities.   BM-R shall be free to accept employment with any
organization and to engage in any business enterprise on his own behalf during
the consulting period or thereafter, whether or not the organization or
enterprise competes with Apache, so long as BM-R complies with Section  2, 3,
5, and 6 of this agreement.  If BM-R desires to accept employment with or
provide services to another organization, and if that employment creates a
conflict of interest with the services to be provided by BM-R in Section  3 or
with any ongoing fiduciary obligations to Apache, then BM-R shall promptly
inform the COO of that opportunity and obtain consent of the COO before
accepting conflicting employment, which consent will not be unreasonably
withheld.  Nothing contained in this agreement shall be construed to prohibit
BM-R from practicing his profession in the future so long as BM-R honors the
continuing obligations of this agreement.

        5. Goodwill.  During the period of this agreement, BM-R shall generally
foster, maintain and promote the reputation and image of Apache, its
subsidiaries and affiliates.  Apache shall generally foster, maintain and
promote the reputation and image of BM-R.  Apache shall not hinder or
discourage the future employment of BM-R.

        6.  Confidentiality.  In addition to his fiduciary responsibilities and
his responsibilities as an officer not to disclose certain information of or
relating to Apache, BM-R shall not disclose information of a nonpublic nature
relating to Apache's business or the business of Apache's subsidiaries and
affiliates.  Notwithstanding the foregoing, BM-R shall be permitted to disclose
such nonpublic information relating to Apache as is in good faith necessary to
allow BM-R to effectively provide the services called for in Section  3 above.
In cases where it is reasonable and appropriate, BM-R shall first obtain
consent to a confidentiality agreement prepared by the General Counsel of
Apache from parties requesting nonpublic information from or relating to
Apache.  Nothing in this confidentiality provision shall be construed to
prohibit BM-R from investing or participating in his individual capacity in, or
from assisting or advising other clients interested in pursuing, such deals,
projects, prospects or business opportunities that Apache, its subsidiaries and
affiliates have abandoned, rejected, sold, or have no continuing commitment,
obligation, financial or property interest, whether currently vested or
contingent.





                                       2
<PAGE>   3
        7. Monthly Payment.  On or before the 16th day of each calendar month
during the consulting period commencing March 1994, BM-R shall invoice Apache
for services in the amount of $13,333.33 and Apache shall pay BM-R the invoiced
amount on or before the first day of the next calendar month.  The invoiced
amount shall continue to be paid without regard to BM-R's employment by another
organization in accordance with Section  4 above, his participation in a
partnership, or his engagement in business for his own account.  Failure or
tardiness by BM-R in invoicing Apache shall not waive or release BM-R's right
to payment, but amounts invoiced more than 5 business days late by BM-R shall
not be due until 10 business days after invoice.  BM-R may invoice Apache for
the initial monthly payment prior to inception of the consulting period.

        8. Expense Reimbursement.  Subject to Apache's travel policies
governing its executives, Apache shall promptly, but in no event more than 30
days after invoicing, reimburse BM-R for all travel, airline, room,
entertainment, meals, beverages, car rental, communications and other out-
of-pocket expenses incurred by BM-R in the course of performing his consulting
obligations under this agreement, provided that the general purpose for such
consulting expenses is approved in advance by Apache and when reasonable and
practical, airline ticketing and hotel accommodations are arranged for through
Apache's travel department.  In the event BM-R incurs travel expenses for
another client while traveling for Apache, Apache shall pay only its
proportionate share of the expenses incurred based on a formula agreed upon in
advance by BM-R and Apache.

        9. Benefits.  During the consulting period (including any period of
disability or following death), Apache shall:

        o   a)  provide medical, dental and vision benefits to BM-R and 
            his spouse and dependents to the same extent, and subject to the
            same premium co-payments, as are extended to Apache executives;

        o   b)  provide life insurance and disability benefits
            (including supplemental group life insurance) to BM-R to the same
            extent as extended to Apache executives;

        o   c)  provide SOS, Control Risk (including kidnapping and political 
            risk protection coverage) and supplemental travel insurance 
            normally provided to Apache executives; and

        o   d)  maintain coverage of BM-R under Apache's director and officer
            liability insurance for activities undertaken by BM-R pursuant
            to this agreement.

        In addition to terminating at the conclusion of the consulting period,
the foregoing benefits shall terminate to the extent that comparable
replacement benefits are offered by an employer with which BM-R accepts
employment.  Apache shall not impair the cash value of any life insurance
currently maintained by Apache for BM-R, and that cash value shall remain the





                                       3
<PAGE>   4
property of BM-R.  Apache shall cause its employees, insurance carriers and
agents to cooperate fully with BM-R in managing and maintaining BM-R's
insurance coverage, in responding to BM-R's insurance claims and in
responding to BM-R's inquiries concerning insurance coverages.  Eligibility
of BM-R for continuation of coverage under COBRA shall not commence until the
termination of this agreement.

        10.  Plan Balances.  Upon his request, Apache shall cooperate in the
prompt rollover of BM-R's 401(k) account balances to an IRA account or other
account designated by BM-R.  Apache shall disburse to BM-R, or direct the
disbursement to BM-R of, the balance in BM-R's Non-qualified Retirement Plan
account pursuant to the terms of the Non-qualified Retirement Plan.

        11.  Apache International, Inc. Participant Stock.  Apache and BM-R
acknowledge that BM-R has certain rights pursuant to the Apache International,
Inc. Common Stock Award Plan ("the Plan").  BM-R and Apache agree that the plan
is modified as set forth in this agreement.  If both parties agree on price and
other terms, appraisal and purchase of BM-R's rights pursuant to the plan shall
occur on September 16, 1995, or on such other date and on such other terms as
to which Apache and BM-R may hereafter agree.  If no appraisal and purchase can
be mutually agreed to at the end of the consulting period or such later date as
agreed to by Apache and BM-R, or if BM-R dies prior to appraisal and purchase
of BM-R's rights, BM-R's Apache International, Inc. Participant Stock will be
converted to an economic interest in all Apache International, Inc. properties
existing as of December 31, 1993, taking into account only such liabilities as
are incurred in connection with the exploration and exploitation of these
properties (a listing of which is attached hereto as "exhibit A" and
incorporated herein by reference), reflecting the same benefits, obligations,
and terms of the Plan as modified by this agreement, subject to the following:
If Apache directly or through its participation in a joint venture signs a
letter of intent to supply gas from any Apache International, Inc.  Australian
property to an existing or prospective LNG project, then the value of BM-R's
Apache International, Inc. Participant Stock (or converted economic interest)
shall be adjusted by reducing intercompany payables due to Apache by Apache
International, Inc. by $25,000,000 in a manner that is tax-neutral to BM-R.
Apache shall provide BM-R with semiannual balance sheets, operating reports and
income statements for Apache International, Inc. and its subsidiaries that
reflect the activities and value of Apache International, Inc. and its
subsidiaries.  Exhibit B provides a schedule of intercompany payables due to
Apache by Apache International, Inc. as of December 31, 1993.  Future
intercompany payables due to Apache by Apache International, Inc. will be
adjusted to reflect only direct overheads allocable to Apache International,
Inc. properties existing as of December 31, 1993, excluding any allocation of
general and administrative Apache corporate overhead charges.

        In the event that BM-R's Apache International, Inc. Participant Stock
is converted to an economic interest, the economic interest shall be freely
assignable except that BM-R or his heirs must first offer to sell the economic
interest to Apache, provided, however, that if Apache and BM-R or his heirs are
unable to agree upon the price and other terms of such sale, BM-R or his heirs
shall be free to sell such economic interest to a third party at any price and
other terms, notwithstanding this provision.





                                       4
<PAGE>   5
        12.  Consulting Payment.  On March 16, 1994, Apache shall pay BM-R
$565,833 as a nonrefundable consulting payment.  Apache shall pay BM-R
$5,842.40 for any accrued but unused vacation on March 16, 1994.

        13.  Relocation.  Apache agrees to provide interm storage and move, at
Apache's expense, BM-R's personal  goods to any reasonable destinations in the
48 contiguous United States.  To receive this benefit, BM-R must contact the
Apache purchasing department.

        14.  Office Furniture.  BM-R shall be permitted to keep his office
furniture.

        15.  Credit Cards.  While providing services pursuant to this agreement
BM-R shall be permitted to retain and use his corporate AT&T calling card. 
This card must be returned to the company immediately upon the termination of
this agreement.

        16.  Independent Contractor and Taxes.  BM-R acknowledges that his
engagement under this agreement is as an independent contractor and not as an
employee of Apache or its subsidiaries or affiliates.  Accordingly, BM-R will
be responsible for the payment of all income tax and other taxes on cash
amounts payable to BM-R, and Apache will not withhold any amounts from payments
made under this agreement.  If the Internal Revenue Service makes a final
determination that Apache should have withheld federal income taxes and/or
BM-R's share of FICA taxes from such payments, BM-R will reimburse Apache for
any monies paid by Apache to the U.S. Government in compliance with such
determination, except for payments of interest or penalties or Apache's share
of FICA taxes.

        17.  Releases.  (a) BM-R releases Apache and each of its subsidiaries
and affiliates ("the Company"), from any and all rights or claims, known or
unknown, arising in any way out of BM-R's employment or the termination
thereof, regardless of whether such right or claim is based on any alleged
negligent or intentional act or omission.  BM-R agrees that he will not
institute any charge, complaint, or litigation against the Company based on
such released rights and/or claims.  The foregoing release includes without
limitation any rights and claims under federal, state, or local laws, including
but not limited to the Age Discrimination in Employment Act, the Texas
Commission on Human Rights Act, and the common law of the states of Texas,
Colorado, and any other jurisdiction.

        (b)  The Company releases BM-R from any and all rights or claims, known
or unknown, arising in any way out of BM-R's employment or the acts or
omissions of BM-R that occurred during the term of BM-R's employment or the
termination thereof, regardless of whether such right or claim is based on any
alleged negligent or intentional act or omission.  The Company agrees that it
will not institute any charge, complaint, or litigation against BM-R based on
such released rights and/or claims.  The Company indemnifies and holds
harmless, and agrees to indemnify and hold harmless, BM-R against any liability
or expense, including attorneys' fees and costs, incurred by BM-R in
evaluating, defending, compromising, settling, or satisfying any claim, except
claims for breach of this agreement.





                                       5
<PAGE>   6
        (c)  Notwithstanding the releases and indemnities contained in Section
17(b), Apache shall not be obligated to release or indemnify BM-R for any
actions undertaken by BM-R during his employment without the knowledge of the
Company that a court of competent jurisdiction determines to have been
violative of applicable criminal laws, including the criminal provisions of the
U.S. Foreign Corrupt Practices Act of 1977.

        NOTWITHSTANDING the foregoing, the releases contained herein shall not
apply to any rights BM-R shall have under:

        o  a) Apache's 401(k) Plan and Non-qualified Retirement Plan;

        o  b) this agreement;

        o  c) COBRA to receive continued medical benefits; or

        o  d) the Apache International, Inc. Common Stock Award Plan as
           modified by this agreement.

        18.  Non-Assignability.  Neither this agreement nor any right or
interest herein may be assigned or transferred by Apache or BM-R without the
other's written consent, except as to: 

        o  a) the rights of BM-R's estate, heirs
           and devises to certain benefits under this agreement;

        o  b) the sale of all or substantially all of Apache's assets, or the
           merger or combination of Apache with another organization, if the 
           asset purchaser or surviving organization assumes the full 
           performance of Apache's obligations under this agreement, but Apache
           shall not be relieved of its obligations under this agreement by 
           that assumption.

        o  c) BM-R may assign this contract to a corporation controlled by BM-R
           so long as BM-R personally provides services required by this 
           agreement.

        19.  No Attachment Except as Required by Law.  Except for economic
interests in Apache International, Inc. properties described in Section 11 of
this agreement, BM-R's right to receive payment under this agreement shall not
be subject to anticipation, commutation, alienation, sale, encumbrance, pledge,
hypothecation, execution, attachment, levy, offset, deduction, set off,
condition, or assignment by operation of law, and any attempt, voluntary or
involuntary, to effect such action shall be null and void.

        20.  Binding Effect.  This agreement shall bind and inure to the
benefit of BM-R, Apache and its subsidiaries and affiliates and their
authorized successors and assigns.





                                       6
<PAGE>   7
        21.   Amendment, Modification, Waiver.  This agreement shall not be
amended or modified except by an instrument in writing signed by the parties
hereto. No term of this agreement shall be deemed to have been waived, nor
shall there be an estoppel against enforcement of any provision of this
agreement, except by written instrument of the party charged with such waiver
or estoppel.  No person or organization, including those within the definition
of company, not a party to this agreement or permitted successor to a party to
this agreement, shall be a third party beneficiary of this agreement or
entitled to enforce its terms.  BM-R acknowledges that he has had at least 21
days to consider this agreement and has had legal advice with respect thereto
or has conscientiously determined not to consult with an attorney.

        22.  Arbitration.  In the event of any dispute between Apache and BM-R
arising under or relating to this agreement, the aggrieved party's sole and
exclusive remedy shall be to demand the arbitration of such dispute pursuant to
the Commercial Arbitration Rules of the American Arbitration Association.  All
claims, disputes, or other matters arising out of or relating to this agreement
shall be decided by a single arbitrator selected in accordance with such
Commercial Arbitration rules of the American Arbitration Association.  The cost
of arbitration shall be borne equally by Apache and BM-R unless the arbitrator
determines that equity and fairness require that such costs be allocated in
some other way.  The opinion and award of the arbitrator shall be made in
writing and shall be final and binding upon all parties.  The arbitrator shall
have full authority to decide the issue(s) in dispute but shall have no
authority to amend, alter, modify, add to or subtract from the provisions of
this agreement.  As to matters of business judgment, the arbitrator shall not
have the power or right to substitute his judgment for that of Apache or BM-R
so long as the party whose action is in question has not violated the express
terms of this agreement.

        23.  No Other Benefits.   Except as provided in this agreement, BM-R
shall not be entitled to any pension, profit-sharing, bonus, disability, life
insurance or similar plan or program of Apache, whether now existing or
hereafter adopted for the benefit of Apache's employees or consultants.  This
section shall not impair the rights of BM-R described in Section  9 of this
agreement.

        24.  Headings and Meanings.  The headings of sections in this agreement
are for convenience only, and should not be considered in construing or
interpreting this agreement.

        25.  Governing Law.  This agreement has been executed and delivered in
the State of Texas, and its validity, interpretation, performance and
enforcement shall be governed by the laws of that state.  Any arbitrator shall
be bound to apply Texas law.

        26.  Notices.  Any notice contemplated or permitted by this agreement
shall be delivered as follows:  to Apache or the company:  William J.  Johnson,
Chief Operating Officer, Apache Corporation, 2000 Post Oak Blvd., Suite 100,
Houston, Texas 77056. The above addresses for notice may be changed by 
written notice from the changing party to the other party.





                                       7
<PAGE>   8
        27.   Revocation.  BM-R may rescind this agreement by written notice to
Apache delivered on or before 5 P.M. on the 7th day after its execution by
Apache and BM-R and delivery to BM-R.  If no such notice of recision is timely
received by Apache, the effective time of this agreement shall be as stated
above.  Upon recision of this agreement BM-R shall repay to Apache all sums
paid pursuant to this agreement except salary for services rendered by BM-R
prior to the effective time.




                                CONSULTANT



   March 11, 1994               /s/ B.  Mossavar-Rahmani
____________________             _________________________________
       Date                         Bijan Mossavar-Rahmani




                                APACHE CORPORATION



    3/11/94                     /s/ William J. Johnson
____________________            _________________________________
      Date                          William J. Johnson
                                    President and Chief Operating Officer





                                       8
<PAGE>   9





                                   EXHIBIT A


                           APACHE INTERNATIONAL, INC.

                         ASSETS AS OF DECEMBER 31, 1993


CONTRACT RIGHTS

<TABLE>
<CAPTION>
                PROPERTY                          INTEREST                        SUBSIDIARY            
                --------                          --------                        ----------
<S>                                             <C>                          <C>
Padang Panjang Block Onshore Sumatra,              90% *                     Apache Oil Sumatra, Inc.
Indonesia (2,219,946 gross acres)

Java Sea Block IV Offshore Indonesia            43.48%                       Apache Oil Java Sea, Inc.
(2,178,162 gross acres)

Qarun Block, Western Desert Egypt                  50%                       Apache Oil Egypt, Inc.
(1,927,380 gross acres)

Angola Offshore Block 6                           2.5% *                     Apache International, Inc.
(1,217,739 gross acres)

Congo Marine III Block                             20% **                    Apache Oil Congo, Inc.
(236,228 gross acres)

Australia:  Producing Area TL-2                11.834%                       Apache Oil Australia Pty Ltd.
(98,570 gross acres)

  Australia Exploration Permits
  -----------------------------

  WA-237 (3,580,000 gross acres)                   50%                       Apache Oil Australia Pty Ltd.

  WA-214 (330,000 gross acres)                  14.76%                       Apache Oil Australia Pty Ltd.

  TP-7 (308,220 gross acres)                    14.76%                       Apache Oil Australia Pty Ltd.

  EP-365 (19,650 gross acres)                   14.76%                       Apache Oil Australia Pty Ltd.

  WA-149-P (R-1) (198,670 gross acres)          14.76%                       Apache Oil Australia Pty Ltd.

Cote d'Ivoire - Stock Ownership in                 15%                       Apache Cote d'Ivoire, Inc.
Compagnie des Energies Nouvelles de Cote
d'Ivoire (CENCI) which holds certain
unperfected rights in Foxtrot Field, Offshore

Angola, Cameroon, Congo, Gabon, Namibia,                                     Apache International, Inc.
Trinidad-Tobago, Aruba, Ecuador, Vietnam.
Right to participate with Citizens Energy in
future ventures.
</TABLE>
- ------------------ 
*    Option to participate on commerciality
**   Paying interest, revenue interest will be less
<PAGE>   10
                                   EXHIBIT B

                           APACHE INTERNATIONAL, INC.

             ANALYSIS OF INTERCOMPANY BALANCE AT DECEMBER 31, 1993


<TABLE>
<S>                                                                                <C>
Balance in the intercompany account
at 12/31/93 (per audited financial statements)                                     $56,120,035

LESS:            Corporate overhead charged to
                 Apache International for the years ended:

                          1988                         $     738,883
                          1989                               574,602
                          1990                             1,102,579
                          1991                             2,127,666
                          1992                               851,947
                          1993                             2,033,487
                                                                                     7,429,164

LESS:            Direct Argentina costs                                              2,100,494
                                                                                     ---------

Net balance to recover at 12/31/93                                                 $46,590,377
</TABLE>

<PAGE>   1

                                                                    EXHIBIT 11.1





                      APACHE CORPORATION AND SUBSIDIARIES
                       COMPUTATION OF EARNINGS PER SHARE
                     (In thousands, except per share data)




                                      
<TABLE>                               
<CAPTION>                             
                                                     For the Year Ended
                                                     December 31, 1993
                                                     -----------------
                                                                      Fully
                                                  Primary            Diluted
                                                  -------            -------
<S>                                               <C>                <C>
Net income                                        $37,334            $37,334
                                                               
Assumed reduction of interest                                  
  expense upon conversion of                                   
  $75 million 3.93% convertible                                
  notes, net of tax                                     -              2,145
                                                  -------            ------- 
Net income, as adjusted                           $37,334            $39,479
                                                  =======            ======= 
Weighted average common shares                                       
  outstanding                                      53,534             53,534     
                                                               
Stock options; common stock                                   
  equivalents outstanding using                                
  the treasury stock method                             -                242
                                                               
Common shares issuable upon                                    
  assumed conversion of 3.93% notes                     -              2,778
                                                  -------            ------- 
Common shares used for calculation                             
  of earnings per share                            53,534             56,554
                                                  =======            =======
                                                               
Earnings per share                                $   .70            $   .70
                                                  =======            =======
</TABLE>                                                       
                                                               

<PAGE>   1
                                                                    Exhibit 21.1

                              APACHE CORPORATION
                                       
                            LISTING OF SUBSIDIARIES

<TABLE>
<CAPTION>
EXACT NAME OF SUBSIDIARY                                    JURISDICTION OF
AND NAME UNDER WHICH                                        INCORPORATION OR
SUBSIDIARY DOES BUSINESS                                    ORGANIZATION
- --------------------------------------------------------    ----------------
<S>                                                         <C>
Apache China Corporation LDC                                Cayman Islands
Apache Foundation                                           Minnesota
Apache Gathering Company                                    Delaware
Apache International Finance N.V.                           Netherland Antilles
Apache International, Inc.                                  Delaware
         Apache Cote d'Ivoire, Inc.                         Delaware
         Apache France Investment Management, Inc.          Delaware
         Apache Oil Angola, Inc.                            Delaware
         Apache Oil Australia PTY Limited                   New South Wales, Australia
         Apache Oil Azerbaijan, Inc.                        Delaware
         Apache Oil Congo, Inc.                             Delaware
         Apache Oil Egypt, Inc.                             Delaware
         Apache Oil France, Inc.                            Delaware
         Apache Oil Gabon, Inc.                             Delaware
         Apache Oil Java Sea, Inc.                          Delaware
         Apache Oil Myanmar, Inc.                           Delaware
         Apache Oil Sumatra, Inc.                           Delaware
         Societe Petroliere Apache France S.N.C.            France
MW Petroleum Corporation                                    Colorado
         MWJR Petroleum Corporation                         Delaware
Ucross Land Company                                         Delaware
Nagasco, Inc.                                               Delaware
         Apache NGC, Inc.                                   Delaware
         Apache Marketing, Inc.                             Delaware
         Apache Transmission Corporation - Texas            Texas
         Apache Crude Oil Marketing, Inc.                   Delaware
         Nagasco Marketing, Inc.                            Delaware
Apache Corporation (New Jersey)                             New Jersey
Apache-Beals Corporation                                    New York
Apache Oil Corporation                                      Texas
Burns Manufacturing Company                                 Minnesota
Hadson Energy Resources Corporation                         Delaware
         Hadson Bentu Limited                               Oklahoma
         Hadson Bunyu Limited                               Oklahoma
         Hadson Energy Limited                              Western Australia
         Hadson Australia Development Pty Ltd.              Western Australia
                Petro Energy Limited                        New South Wales, Australia
         Hadson Beagle Pty Ltd.                             Western Australia
         Hadson Carnarvon Pty Ltd.                          Western Australia
         Hadson Dampier Pty Ltd.                            Western Australia
         Hadson Pacific Pty Ltd.                            Western Australia
         Hadson Timor Sea Pty Ltd.                          Western Australia
         Hadson WA-225 Pty Ltd.                             Western Australia
Mid Equipment, Incorporated                                 Delaware
</TABLE>



<PAGE>   1


                                                                    EXHIBIT 23.1



                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


  As independent public accountants, we hereby consent to the incorporation of
our report included in this Form 10-K into Apache Corporation's previously
filed Registration Statements on Form S-3 (No. 33-51253) and Form S-8 (Nos.
33-53442, 33-37402 and 33-31407).





                                                     ARTHUR ANDERSEN & CO.


Houston, Texas
March 21, 1994






<PAGE>   1


                                                                    EXHIBIT 23.2


            {RYDER SCOTT COMPANY PETROLEUM ENGINEERS LETTERHEAD}






                         CONSENT OF PETROLEUM ENGINEERS


  As independent petroleum engineers, we hereby consent to the reference to our
Firm's review of Apache's proved oil and gas reserve quantities as of January
1, 1994 included in the Company's Annual Report on Form 10-K for the fiscal
year ending December 31, 1993, and incorporated by reference into the Company's
Registration Statements on Form S-3 (No. 33-51253) and Form S-8 (Nos. 33-53442,
33-37402 and 33-31407).





                                                 RYDER SCOTT COMPANY
                                                 PETROLEUM ENGINEERS


Houston, Texas
March 21, 1994






<PAGE>   1


                                                                    EXHIBIT 23.3


          {INTERA INFORMATION TECHNOLOGIES INC. LETTERHEAD}




                         CONSENT OF PETROLEUM ENGINEERS


  As independent petroleum engineers, we hereby consent to the reference to our
Firm's review of Apache's proved oil and gas reserve quantities as of January
1, 1994 included in the Company's Annual Report on Form 10-K for the fiscal
year ending December 31, 1993, and incorporated by reference into the Company's
Registration Statements on Form S-3 (No. 33-51253) and Form S-8 (Nos. 33-53442,
33-37402 and 33-31407).


                                           /s/ OMER GURPINAR

                                           Omer Gurpinar, Vice President
                                           Reservoir Sumulation
                                           INTERA Information Technologies Inc.
                                           Petroleum Services Division

Houston, Texas
March 17, 1994







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