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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    Form 10-K

[X]   ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
         SECURITIES EXCHANGE ACT OF 1934
                  For the fiscal year ended December 31, 1997,

                                       OR

[  ]  TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
         SECURITIES EXCHANGE ACT OF 1934
             for the transition period from __________ to __________
                                    

                         Commission file number 0-13546

                     Apache Offshore Investment Partnership

        A Delaware                                     IRS Employer
        General Partnership                            No. 41-1464066

                              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: NONE


           SECURITIES REGISTERED PURSUANT TO SECTION 12(g) OF THE ACT:
                                PARTNERSHIP UNITS

       Indicate by check mark whether the Partnership (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
Partnership 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 Partnership'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. _X_


                      DOCUMENTS INCORPORATED BY REFERENCE:

        Portions of Apache Corporation's proxy statement relating to its 1998
annual meeting of shareholders have been incorporated by reference into Part III
hereof.

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                                TABLE OF CONTENTS

                                   DESCRIPTION

Item                                                                      Page
- ----                                                                      ----

                                     PART I

1.  BUSINESS............................................................     1
2.  PROPERTIES..........................................................     4
3.  LEGAL PROCEEDINGS...................................................     4
4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.................     4

                                     PART II

5.  MARKET FOR THE PARTNERSHIP'S SECURITIES AND RELATED
        SECURITY HOLDER MATTERS.........................................     5
6.  SELECTED FINANCIAL DATA.............................................     5
7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND
        RESULTS OF OPERATIONS ..........................................     6
8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.........................    11
9.  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING
        AND FINANCIAL DISCLOSURE........................................    25

                                    PART III

10. DIRECTORS AND EXECUTIVE OFFICERS OF THE PARTNERSHIP.................    25
11. EXECUTIVE COMPENSATION..............................................    25
12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT......    25
13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS......................    25

                                     PART IV

14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K....    26


        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 Partnership's working
interest in wells or acreage, "net" oil and gas wells or acreage is determined
by multiplying gross wells or acreage by the Partnership's working interest
therein. Unless otherwise specified, all references to wells and acres are
gross.

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                                     PART I

ITEM 1.  BUSINESS

General

    Apache Offshore Investment Partnership is a Delaware general partnership
organized in October 1983, with Apache Corporation (Apache), a Delaware
corporation, as Managing Partner and public investors as Investing Partners. The
Investing Partners purchased Units of Partnership Interests (Units) at $150,000
per Unit with five percent down and the balance in payments as called by the
Partnership. As of December 31, 1997, a total of $85,000 had been called for
each Unit. In 1989, the Partnership determined that the full $150,000 per Unit
was not needed, fixed the total calls at $85,000 per Unit, and released the
Investing Partners from liability for future calls. The Partnership invested,
and will continue to invest, its entire capital as the sole limited partner in
Apache Offshore Petroleum Limited Partnership, a Delaware limited partnership of
which Apache is the sole general partner. The limited partnership conducts
operations on behalf of the Partnership. The term "Partnership", as used
hereafter, refers to either the general partnership or limited partnership, as
the case may be.

    The Partnership's business is participation in oil and gas exploration,
development and production activities on federal lease tracts in the Gulf of
Mexico, offshore Louisiana and Texas. Except for the Matagorda Island Block 681
and 682 interests, as described below, the Partnership acquired its oil and gas
interests through the purchase of 85 percent of the working interests held by
Apache as a participant in a venture (the Venture) with Shell Oil Company
(Shell) and certain other companies. The Partnership owns working interests
ranging from 1.61 percent to 7.08 percent in the Venture's properties.

    The Venture acquired substantially all of its oil and gas properties through
bidding for leases offered by the federal government. The Venture members relied
on Shell's knowledge and expertise in determining bidding strategies for the
acquisitions. When Shell was successful in obtaining the properties, it
generally billed participating members on a promoted basis (one-third for
one-quarter) for the acquisition of exploratory leases and on a straight-up
basis for the acquisition of leases defined as drainage tracts. All such
billings were proportionately reduced to each members' working interest.

    In November 1992, Apache and the Partnership formed a joint venture to
acquire Shell's 92.6 percent working interest in Matagorda Island Blocks 681 and
682 pursuant to a jointly-held contractual preferential right to purchase.
Apache and the Partnership previously owned working interests in the blocks
equal to 1.109 percent and 6.287 percent, respectively, and net revenue
interests of .924 percent and 5.239 percent, respectively. To facilitate the
acquisition, Apache and the Partnership contributed all of their interests in
Matagorda Island Blocks 681 and 682 to a newly formed joint venture, and Apache
contributed $64.6 million ($55.6 million net of purchase price adjustments) to
the joint venture to finance the acquisition. The Partnership had neither the
cash nor access to additional financing to fund its proportionate share of the
acquisition and participated only to the extent of an increased net revenue
interest in the joint venture.

    Under the terms of the joint venture agreement, the Partnership's effective
net revenue interest in the Matagorda Island Block 681 and 682 properties
increased to 13.284 percent as a result of the acquisition, while its working
interest was unchanged. The acquisition added approximately 7.5 Bcf of natural
gas and 16 Mbbls of oil to the Partnership's reserve base without any
incremental expenditures by the Partnership.

    Since the Venture is not expected to acquire any additional exploratory
acreage, future acquisitions, if any, will be confined to those leases defined
as drainage tracts. The current Venture members would pay their proportionate
share of acquiring any drainage tracts on a non-promoted basis.

    Offshore exploration differs from onshore exploration in that production
from a prospect generally will not commence until a sufficient number of
productive wells have been drilled to justify the significant costs associated
with construction of a production platform. Exploratory wells usually are
drilled from mobile platforms until there are sufficient indications of
commercial production to justify construction of a permanent production
platform.

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    Apache, as Managing Partner, manages the Partnership's operations. Apache
uses a portion of its staff and facilities for this purpose and is reimbursed
for actual costs paid on behalf of the Partnership, as well as for general,
administrative and overhead costs properly allocable to the Partnership.

1997 Business Development

    The Partnership spud eight new wells in 1997. Three developmental wells were
drilled in 1997 at South Timbalier Block 295. One of these wells was completed
and began producing in 1997. The second well was sidetracked and abandoned while
the third was in progress at year-end. Additionally, a water-injection well spud
in 1996 at South Timbalier Block 295 was drilled to total depth in 1997 and is
awaiting completion in 1998.

    One exploratory well was drilled, completed and began production in 1997 at
Ship Shoal Block 258/259. A developmental well was also drilled and is planned
to be completed in 1998.

    The Partnership commenced drilling a sidetrack developmental well at South
Pass Block 83 in 1997. Two additional developmental wells are approved for
drilling in 1998. The Partnership expects all three wells to commence production
during 1998.

    In 1997, one developmental well was drilled, completed, and began production
at the Roberto Prospect. An exploratory well was drilled at Matagorda Island
Block 705 in 1997 and is expected to be completed in 1998.

    Since inception, the Partnership has acquired an interest in 49 Prospects.
As of December 31, 1997, 40 prospects have been surrendered or sold.

    The status of the Partnership's 49 original prospects is shown in the
following table:

                                               As of December 31,
                                             ----------------------
                Prospect Status                1997          1996
       --------------------------------      --------      --------
      Producing-Fully Developed                    6             10
      Producing-Partially Developed                3              1
                                               -----          -----
      Total Discoveries                            9             11
      Surrendered/Sold                            40             38
                                               -----          -----
      Total                                       49             49
                                               =====          =====

    As of December 31, 1997, 109 wells have been drilled on the nine remaining
prospects. Of the 109 wells, 85 were indicated productive and of those, 84 are
currently producing. Sixteen of the Partnership's producing wells are dual
completions. The Partnership had, at December 31, 1997, estimated proved oil and
gas reserves of 18.0 Bcfe, of which 69 percent was natural gas.

    During 1997, the Partnership sold its interest in the Glenda Prospect (High
Island Block A-6) and sold its interest in a farmout, which was operated by
Forest Oil Corporation, on the Roberto Prospect (Matagorda Island Block
670/682). The Matagorda Island Block 681 and 682 portions of the Roberto
Prospect remain with the Partnership. In January 1998, the Partnership sold its
interest in the Krypton Prospect (West Cameron Block 368).

Full Cost Ceiling Test

    Under the full cost accounting rules of the Securities and Exchange
Commission (SEC), the Partnership reviews the carrying value of its oil and gas
properties each quarter. 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 included in the costs being
amortized, if any. Application of these rules 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. The Partnership had no
write-downs due to ceiling test limitations during 1997.

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Marketing

    Apache, on behalf of the Partnership, seeks and negotiates oil and gas
marketing arrangements with various marketers and purchasers. During 1997, the
Partnership's spot market gas was purchased primarily by Producers Energy
Marketing LLC (ProEnergy) and the Partnership's oil and condensate production
was purchased primarily by Plains Petroleum Operating Co. (Plains Petroleum).
Apache held a 48 percent interest in ProEnergy at December 31, 1997. The
Partnership expects to receive prevailing spot market prices at the relevant
delivery points on an ongoing basis.

    See Note (5) to the Partnership's financial statements "Major Customer
Information" under Item 8 below. Because the Partnership's oil and gas products
are commodities and the prices and terms of its sales reflect those of the
market, the Partnership does not believe that the loss of any customer would
have a material adverse affect on the Partnership's business or results of
operations. The Partnership is not in a position to predict future oil and gas
prices.

Environmental

    The Partnership, as an owner or lessee of interests in oil and gas
properties, is subject to various federal, state and local laws and regulations
relating to the 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 and
require suspension or cessation of operations in affected areas.

    The Partnership has made and will continue to make expenditures in its
efforts to comply with these requirements. These costs are inextricably
connected to normal operating expenses such that the Partnership is unable to
separate the expenses related to environmental matters; however, the Partnership
does not believe such expenditures are material to its financial position or
results of operations.

    The Partnership does not believe that compliance with federal, state or
local 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 and the competitive
position of the Partnership, 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 Partnership is a very minor factor in the oil and gas industry in the
Gulf of Mexico area and faces strong competition from much larger producers for
the marketing of its oil and gas. The Partnership's ability to compete for
purchasers and favorable marketing terms will depend on the general demand for
oil and gas from Gulf of Mexico producers. More particularly, it will depend
largely on the efforts of Apache and ProEnergy to find the best markets.


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ITEM 2.  PROPERTIES

    Acreage is held by the Partnership pursuant to the terms of various leases.
The Partnership does not anticipate any difficulty in retaining any of its
desirable leases. A summary of the Partnership's producing wells and gross
acreage as of December 31, 1997, is set forth below:
Producing Oil/Gas Acres Wells Average ----------------- ------------- Working Dev. Undev. Lease Block Prospect State Gross Net Interest Gross Gross - ----------------------- -------- ----- ----- ----- -------- ------ ------ Ship Shoal 258, 259 Genesis LA 13 .8 .0628698 10,141 -- South Timbalier 276, 295 Grover LA 28 2.0 .0708333 10,000 -- North Padre Island 969, 976 Rosita TX 11 .8 .0708333 11,520 -- Matagorda Island 681, 682 Roberto TX 16 1.0 .0628698 11,520 -- Matagorda Island 588 Cortez TX 2 -- ORRI 5,760 -- Matagorda Island 705 Matagorda Island TX -- -- .0160999 -- 360 West Cameron 368 Krypton LA 1 .1 .0708333 5,000 -- South Pass 83, 74 Manx LA 7 .5 .0678914 7,500 -- East Cameron 60 East Aragonite LA 1 .1 .0944444 5,000 -- Vermillion 95 Topaz LA 1 -- ORRI 5,000 -- Ship Shoal 201, 202 Bromeliad LA 4 -- ORRI 10,000 -- --- --- ------ ------ 84 5.3 81,441 360 === === ====== ======
During 1997, the Partnership's interest in High Island Block A-6 was sold and a non-producing lease on East Cameron Block 51 (a portion of the East Aragonite Prospect) expired. In January 1998, the Partnership sold its interest in the Krypton Prospect (West Cameron Block 368). See Note (4), "Oil and Gas Properties", and the Partnership's Supplemental Oil and Gas Disclosures under Item 8 below for costs incurred in oil and gas development and production activities and related reserve information. On a net revenue basis, the Partnership owns 5.3 wells. Production and Pricing Data The following table describes, for each of the last three fiscal years, oil and gas production for the Partnership, average production costs (excluding severance taxes) and average sales prices. Production Average Sales Prices -------------- Average -------------------- Year Ended Oil Gas Production Oil Gas December 31, (Mbbls) (MMcf) Cost per Mcfe (per Bbl) (per Mcf) - ----------- ------ ------ ------------- -------- -------- 1997 125 3,878 $ .10 $ 19.30 $ 2.49 1996 164 5,651 .18 20.73 2.50 1995 210 6,052 .19 16.97 1.58 As it is not anticipated that the Partnership will acquire any additional exploratory leases, or that significant exploratory drilling will take place on leases in which the Partnership currently holds interests, continued declines in production can be expected due to natural depletion. See the Supplemental Oil and Gas Disclosures under Item 8 below for estimated oil and gas reserves quantities. ITEM 3. LEGAL PROCEEDINGS There are no material legal proceedings pending to which the Partnership is a party or to which the Partnership's interests are subject. ITEM 4. SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS There were no matters submitted to a vote of security holders during the fourth quarter of 1997. 4 7 PART II ITEM 5. MARKET FOR THE PARTNERSHIP'S SECURITIES AND RELATED SECURITY HOLDER MATTERS As of December 31, 1997, there were 1,184.2 of the Partnership's Units outstanding held by approximately 964 investors of record. There is no other class of security outstanding or authorized. The Units are not traded on any security market. Cash distributions totaled approximately $5.4 million, or $4,500 per Unit, during each of 1997 and 1996. As discussed in Item 7 below, an amendment to the Partnership Agreement in February 1994 created a right of presentment under which all Investing Partners have a limited and voluntary right to offer their Units to the Partnership twice each year to be purchased in cash. ITEM 6. SELECTED FINANCIAL DATA The following selected financial data for the five years ended December 31, 1997, should be read in conjunction with the Partnership's financial statements and related notes included under Item 8 below.
At or For the Years Ended December 31, ---------------------------------------------------- 1997 1996 1995 1994 1993 -------- -------- -------- -------- -------- (In thousands, except per Unit amounts) Total assets $ 10,524 $ 12,252 $ 13,486 $ 14,291 $ 19,521 ========= ========= ========= ========= ========= Long-term debt $ -- $ 1,998 $ 7,310 $ 9,435 $ 14,790 ========= ========= ========= ========= ========= Partners' capital $ 8,647 $ 8,498 $ 5,472 $ 4,175 $ 3,334 ========= ========= ========= ========= ========= Oil and gas sales $ 12,067 $ 17,511 $ 13,138 $ 16,926 $ 18,730 ========= ========= ========= ========= ========= Net income $ 8,244 $ 11,127 $ 6,214 $ 10,116 $ 10,185 ========= ========= ========= ========= ========= Net income allocated to: Managing Partner $ 1,967 $ 2,652 $ 1,800 $ 2,519 $ 2,635 Investing Partners 6,277 8,475 4,414 7,597 7,550 --------- --------- --------- --------- --------- $ 8,244 $ 11,127 $ 6,214 $ 10,116 $ 10,185 ========= ========= ========= ========= ========= Net income per Investing Partner Unit $ 5,260 $ 7,032 $ 3,584 $ 5,974 $ 5,838 ========= ========= ========= ========= ========= Cash distributions per Investing Partner Unit $ 4,500 $ 4,500 $ 2,250 $ 4,500 $ 2,000 ========= ========= ========= ========= =========
5 8 ITEM 7. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS In 1997, the Partnership realized lower net income per Investing Partner Unit than in 1996. Reduced production volumes for both natural gas and crude oil was the most significant cause of lower net income. The average natural gas price was slightly lower than the record high average price in 1996, while the average crude oil price declined seven percent from 1996. Lease operating expense (LOE) and depreciation, depletion and amortization (DD&A) expense were lower in 1997, which resulted in a significant reduction in total operating expenses. On January 31, 1997, the Partnership repaid the outstanding debt balance and terminated its revolving credit facility. Thus, only one month of interest expense was recorded in 1997. Overall, 1997 distributions per Investing Partner Unit were consistent with distributions made in 1996. RESULTS OF OPERATIONS Net Income and Revenue The Partnership reported net income of $8.2 million for 1997 versus $11.1 million in 1996. Net income per Investing Partner Unit decreased 25 percent, to $5,260 from $7,032. The impact of lower production volumes and lower crude oil prices on net income during 1997 was partially offset by lower LOE and DD&A expense. Revenues decreased 30 percent, from $17.5 million in 1996, to $12.2 million in 1997. Natural gas and crude oil sales contributed 79 percent and 20 percent, respectively, to the Partnership's total revenue in 1997, with the remainder attributable to interest and other income. The Partnership is not in a position to predict future oil and gas prices. The Partnership's oil and gas production volume and price information is summarized in the following table:
For the Year Ended December 31, --------------------- Increase 1997 1996 (Decrease) ------- ------- --------- Gas volumes - Mcf per day 10,625 15,441 (31) % Average gas price - per Mcf $ 2.49 $ 2.50 -- Oil volume - Barrels per day 341 447 (24) % Average oil price - per barrel $ 19.30 $ 20.73 (7) %
As it is not anticipated that the Partnership will acquire any additional exploratory leases, or that significant exploratory drilling will take place on leases in which the Partnership currently holds interests, continued declines in production can be expected due to natural depletion. 1997 Compared to 1996 - ---------------------- Natural gas sales for 1997 totaled $9.7 million, 31 percent lower than in 1996. The decrease was driven by lower production volumes due to normal declines in production, which decreased revenues by $4.4 million, downtime for drilling at South Timbalier Block 295, and downtime for drilling and compressor installation work at Ship Shoal Block 259. Also contributing to the decline was the Partnership taking less than its entitlement at South Pass Block 83 and North Padre Island Block 969, where make-up volumes were taken by under-produced working interest owners. The Partnership's crude oil sales for the year totaled $2.4 million, a 29 percent decrease from 1996. The average realized price for 1997 decreased seven percent when compared to 1996, reducing revenues by $.2 million. In addition to the decrease in crude oil prices was a 106 bopd decline in production versus 1996, which reduced sales by $.8 million. The decrease in oil production resulted primarily from natural decline at East Cameron Block 60 and downtime for drilling operations at South Timbalier Block 295. 6 9 Given the small number of producing wells owned by the Partnership, and the fact that offshore wells tend to decline at a faster rate than onshore wells, the Partnership's future production will be subject to more volatility than those entities with greater reserves and longer-lived properties. In 1997, approximately $70,000 of interest income was earned on the Partnership's investment account resulting from cash accumulated to fund cash distributions to Investing Partners and for the purchase of Units offered by Investing Partners under the right of presentment. In 1997, the Partnership received approximately $89,000 of other income from a settlement related to High Island Block A-6. Operating Expenses Primarily as a result of lower oil and gas production, DD&A expense for 1997 decreased 31 percent from last year, while the Partnership's DD&A rate, expressed as a percentage of sales, was 25 percent during each of 1997 and 1996. LOE of $.4 million decreased by $.8 million, or 63 percent, during 1997 when compared to 1996. The reduction in LOE in 1997 was the result of lower workover activity and credits received from an internal review by Shell and a joint venture audit. Interest expense for 1997 includes only one month of interest as the Partnership repaid the outstanding debt balance and terminated its revolving credit facility on January 31, 1997. 1996 Compared to 1995 - --------------------- Natural gas sales for 1996 totaled $14.1 million, 47 percent higher than those recorded in 1995. The increase was driven by higher average realized natural gas prices, which favorably impacted revenue by $5.2 million. Partially offsetting this increase was a 1,140 Mcfd decline in natural gas production for 1996 when compared to 1995, which reduced revenues by $.6 million. The decline in production from 1995 was primarily driven by natural declines at Roberto (-665 Mcfd) and High Island Block A-6 (-387 Mcfd). Also contributing to the gas production decline was the make-up of previously over-produced gas and natural decline at South Pass Block 83 (-423 Mcfd). The Partnership's crude oil sales for the year totaled $3.4 million, a five percent decrease from 1995. The average realized price for 1996 increased 22 percent when compared to 1995, which favorably impacted revenues by $.6 million. Offsetting the benefit of higher crude oil prices was a 128 bopd decline in production versus 1995, which reduced sales by $.8 million. The decrease in oil production resulted primarily from natural decline at South Timbalier Block 295. In 1996, approximately $25,000 of interest income was earned on the Partnership's investment account resulting from cash accumulated to fund cash distributions to Investing Partners and for the purchase of Units offered by Investing Partners under the right of presentment. Operating Expenses DD&A expense for 1996 decreased two percent from 1995, while the Partnership's DD&A rate, expressed as a percentage of sales, was 25 percent during 1996, compared to 34 percent in 1995. The rate decrease reflected higher price realizations and upward reserve revisions. LOE of $1.2 million decreased by $.2 million, or 11 percent, during 1996 when compared to 1995. The reduction in LOE in 1996 was the result of lower workover activity. 7 10 Interest expense decreased 43 percent in 1996. The decrease was primarily a result of a 73 percent reduction in debt from $7.3 million at December 31, 1995, to $2.0 million at December 31, 1996. Also contributing to the decrease was a slight decline in interest rates from 6.5 percent at December 31, 1995, to 6.4 percent at December 31, 1996. CASH FLOW, LIQUIDITY AND CAPITAL RESOURCES Capital Commitments The Partnership's primary needs for cash are for operating expenses, drilling and recompletion expenditures, distributions to Investing Partners, and the purchase of Units offered by Investing Partners under the right of presentment. The Partnership's interest expense decreased to $13,000 for 1997 from $339,000 for 1996 as a result of the debt extinguishment. The Partnership used cash from operating activities in 1997, 1996 and 1995 to reduce debt by $2.0 million, $5.3 million and $2.1 million, respectively. During 1997, the Partnership's oil and gas property additions totaled $4.0 million. The 1997 additions include drilling activity on a water-injection well and three developmental wells at South Timbalier Block 295. In addition, one developmental well and one exploratory well (farmout) were drilled at Ship Shoal Block 258/259, and one sidetrack developmental well was drilled at South Pass Block 83. At Matagorda Island Block 681/682, one sidetrack developmental well was drilled and one exploratory well was also drilled on the Matagorda Island Block 705. Additions to oil and gas properties totaled $1.1 million and $3.2 million in 1996 and 1995, respectively. The Partnership anticipates capital expenditures will total approximately $2.8 million in 1998, based on preliminary information provided by the operators of the properties in which the Partnership has interests. The anticipated capital expenditures relate primarily to completions at South Timbalier Block 295, Ship Shoal Block 258/259, Matagorda Island Block 705 and South Pass Block 83. In addition, two sidetrack wells are planned to be spud on South Pass Block 83 and a recompletion is planned to be performed at Ship Shoal Block 258/259. Additional capital expenditures may be proposed by the operators in the future. During 1997, the Partnership paid distributions to Investing Partners totaling approximately 5.4 million or $4,500 per Unit, which is consistent with the per unit distribution in 1996. The Partnership does not expect to make a distribution in March 1998. Apache, as the Managing Partner, will review the possibility of a distribution in October 1998. Future distributions will be dependent on actual and expected production levels, realized and expected oil and gas prices and actual and anticipated capital expenditures. In February 1994, an amendment to the Partnership Agreement created a right of presentment under which all Investing Partners have a limited and voluntary right to offer their Units to the Partnership twice each year to be purchased for cash. In 1996 and 1995, Investing Partners were paid $162,000 and $279,000, respectively, for a total of 40.48 Units. In 1997, the first right of presentment offer of $13,621 per Unit, plus interest to the date of payment, was made to Investing Partners based on a December 31, 1996 valuation date. The second right of presentment offer of $10,946 per Unit, plus interest to the date of payment, was made to the Investing Partners based on a valuation date of June 30, 1997. As a result, the Partnership acquired 13.67 Units for a total of $180,000 in cash. There will be two rights of presentment in 1998, but the Partnership is not in a position to predict how many Units will be presented for repurchase and cannot, at this time, determine if the Partnership will have sufficient funds available to repurchase Units. The Amended Partnership Agreement contains limitations on the number of Units that the Partnership can repurchase, including an annual limit on repurchases of 10 percent of outstanding Units. The Partnership has no obligation to repurchase any Units presented to the extent that it determines that it has insufficient funds for such repurchases. 8 11 Capital Resources and Liquidity The Partnership's primary capital resource is net cash provided by operating activities, which was $11.4 million for 1997, a decrease of 29 percent from 1996, reflecting oil and gas production declines and lower crude oil prices. Future cash flows will be influenced by oil and gas prices and production and are not presently ascertainable. The Partnership's future financial condition and results of operations will largely depend upon prices received for its oil and natural gas production and the costs of acquiring, finding, developing and producing reserves. A substantial portion of the Partnership's production is sold under market-sensitive contracts. Prices for oil and natural gas are subject to fluctuations in response to changes in supply, market uncertainty and a variety of factors beyond the Partnership's control. These factors include worldwide political instability (especially in the Middle East), the foreign supply of oil and natural gas, the price of foreign imports, the level of consumer demand and the price and availability of alternative fuels. With natural gas accounting for 84 percent of the Partnership's 1997 production and 69 percent of total proved reserves, on an energy equivalent basis, the Partnership is affected more by fluctuations in natural gas prices than in oil prices. It is expected that the net cash provided by operating activities will be sufficient to meet the Partnership's liquidity needs for routine operations over the next two years. However, in the event that future short-term operating cash requirements are greater than the Partnership's financial resources, the Partnership will seek short-term, interest-bearing advances from the Managing Partner as needed. In accordance with the Partnership's continuing objectives to maximize unit holder value and cash distributions, the Managing Partner plans to re-evaluate the future of the Partnership following this year's capital investments. Private Securities Litigation Reform Act Disclosure Certain forward-looking information contained in this report is being provided in reliance upon the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995, as set forth in Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. Such information includes, without limitation, discussions as to estimates, expectations, beliefs, plans and objectives concerning the Partnership's future financial and operating performance. Such forward-looking information is subject to assumptions and beliefs based on current information known to the Partnership and factors that could yield actual results differing materially from those anticipated. Such factors include, without limitation, the prices received for the Partnership's oil and natural gas production, the costs of acquiring, finding, developing and producing reserves, the rates of production of the Partnership's hydrocarbon reserves, the Partnership's success in acquiring or finding additional reserves, unforeseen operational hazards, significant changes in tax or regulatory environments, and the political and economic uncertainties of foreign oil and gas supplies. Impact of the Year 2000 Issue The "Year 2000 Issue" is the result of computer software being written using two digits rather than four to define the applicable year. Apache, as Managing Partner, manages the Partnership's operations. Apache uses a portion of its staff for this purpose and is reimbursed for actual costs paid on behalf of the Partnership, as well as for general, administrative, and overhead costs properly allocable to the Partnership. Any of the Managing Partner's computer programs that have date-sensitive software may recognize a date using "00" as the year 1900 rather than the year 2000. If left unremedied, this could result in a system failure or miscalculations causing disruptions of operations including, among other things, a temporary inability to process transactions or engage in similar normal business activities. 9 12 The Managing Partner is in the process of replacing significant portions of its software to more effectively and efficiently meet its business needs. Replacement computer systems selected by the Managing Partner will properly recognize dates beyond December 31, 1999. The Managing Partner presently believes that with conversions to new software, the Year 2000 Issue will be eliminated. However, if such conversions are not made, or are not completed timely, the Year 2000 Issue could have a material impact on the operations of the Partnership. The Managing Partner plans to replace substantially all of its existing systems within 15 months or not later than March 31, 1999. The date on which the Managing Partner plans to complete installation of its new system is based on management's best estimates, which were derived using numerous assumptions of future events including the continued availability of certain resources. However, there can be no guarantee that these estimates will be achieved and actual results could differ materially from those plans. Specific factors that might cause such material differences include, but are not limited to, the availability and cost of personnel trained in this area and similar uncertainties. 10 13 ITEM 8. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA APACHE OFFSHORE INVESTMENT PARTNERSHIP INDEX TO FINANCIAL STATEMENTS AND SUPPORTING SCHEDULES Page Number ------ Report of Independent Public Accountants ...................... 12 Balance Sheet as of December 31, 1997 and 1996................. 13 Statement of Income for each of the three years in the period ended December 31, 1997................................ 14 Statement of Cash Flows for each of the three years in the period ended December 31, 1997 ............................... 15 Statement of Changes in Partners' Capital for each of the three years in the period ended December 31, 1997............. 16 Notes to Financial Statements.................................. 17 Supplemental Oil and Gas Disclosures........................... 23 Schedules - All financial statement schedules have been omitted because they are either not required, not applicable or the information required to be presented is included in the financial statements or related notes thereto. 11 14 REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS To the Partners of Apache Offshore Investment Partnership: We have audited the accompanying balance sheet of Apache Offshore Investment Partnership (a Delaware partnership) as of December 31, 1997 and 1996, and the related statements of income, cash flows and changes in partners' capital for each of the three years in the period ended December 31, 1997. These financial statements are the responsibility of the Partnership's management. Our responsibility is to express an opinion on these financial statements 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 financial statements referred to above present fairly, in all material respects, the financial position of Apache Offshore Investment Partnership as of December 31, 1997 and 1996, and the results of its operations and its cash flows for each of the three years in the period ended December 31, 1997, in conformity with generally accepted accounting principles. ARTHUR ANDERSEN LLP Houston, Texas March 18, 1998 12 15 APACHE OFFSHORE INVESTMENT PARTNERSHIP BALANCE SHEET
December 31, ------------------------------- 1997 1996 ------------ ------------ ASSETS CURRENT ASSETS: Cash and cash equivalents $ 691,797 $ 1,737,470 Accrued revenues receivable 1,537,451 3,046,185 Receivable from Apache Corporation 218,729 -- Drilling advances 72,020 -- ------------ ------------ 2,519,997 4,783,655 ------------ ------------ OIL AND GAS PROPERTIES, on the basis of full cost accounting: Proved properties 166,397,087 162,877,903 Less-Accumulated depreciation, depletion and amortization (158,392,914) (155,409,894) ------------ ------------ 8,004,173 7,468,009 ------------ ------------ $ 10,524,170 $ 12,251,664 ============ ============ LIABILITIES AND PARTNERS' CAPITAL CURRENT LIABILITIES: Accrued exploration and development $ 1,764,917 $ 513,948 Accrued operating expenses payable and other 112,263 398,898 Payable to Apache Corporation -- 843,084 ------------ ------------ 1,877,180 1,755,930 ------------ ------------ LONG-TERM DEBT -- 1,997,500 ------------ ------------ PARTNERS' CAPITAL: Managing Partner 505,035 1,091,189 Investing Partners (1,184.2 and 1,197.9 Units outstanding, respectively) 8,141,955 7,407,045 ------------ ------------ 8,646,990 8,498,234 ------------ ------------ $ 10,524,170 $ 12,251,664 ============ ============
The accompanying notes to financial statements are an integral part of this statement. 13 16 APACHE OFFSHORE INVESTMENT PARTNERSHIP STATEMENT OF INCOME
For the Year Ended December 31, ------------------------------------------------ 1997 1996 1995 ------------ ------------ ------------ REVENUES: Oil and gas sales $ 12,066,643 $ 17,510,612 $ 13,138,358 Interest income 69,755 24,699 -- Other income 89,249 -- -- ------------ ------------ ------------ 12,225,647 17,535,311 13,138,358 ------------ ------------ ------------ OPERATING EXPENSES: Depreciation, depletion and amortization 2,983,020 4,320,182 4,410,453 Lease operating 445,651 1,216,844 1,372,517 Administrative 540,000 532,325 529,832 Financing costs: Interest expense 12,818 339,045 596,572 Amortization of deferred financing costs -- -- 14,583 ------------ ------------ ------------ 3,981,489 6,408,396 6,923,957 ------------ ------------ ------------ NET INCOME $ 8,244,158 $ 11,126,915 $ 6,214,401 ============ ============ ============ Net income allocated to: Managing Partner $ 1,967,386 $ 2,651,779 $ 1,799,940 Investing Partners 6,276,772 8,475,136 4,414,461 ------------ ------------ ------------ $ 8,244,158 $ 11,126,915 $ 6,214,401 ============ ============ ============ NET INCOME PER INVESTING PARTNER UNIT $ 5,260 $ 7,032 $ 3,584 ============ ============ ============ WEIGHTED AVERAGE INVESTING PARTNER UNITS OUTSTANDING 1,193.3 1,205.3 1,231.6 ============ ============ ============
The accompanying notes to financial statements are an integral part of this statement. 14 17 APACHE OFFSHORE INVESTMENT PARTNERSHIP STATEMENT OF CASH FLOWS
For the Year Ended December 31, ---------------------------------------- 1997 1996 1995 ----------- ------------ ------------ CASH FLOWS FROM OPERATING ACTIVITIES: Net income $ 8,244,158 $ 11,126,915 $ 6,214,401 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation, depletion and amortization 2,983,020 4,320,182 4,410,453 Amortization of deferred financing costs -- -- 14,583 Changes in operating assets and liabilities: (Increase) decrease in accrued revenues receivable 1,508,734 (301,197) (715,704) Increase (decrease) in accrued operating expenses payable (286,635) 191,476 2,340 Increase (decrease) in receivable from/payable to Apache (1,061,813) 773,260 (248,397) ----------- ------------ ------------ Net cash provided by operating activities 11,387,464 16,110,636 9,677,676 ----------- ------------ ------------ CASH FLOWS FROM INVESTING ACTIVITIES: Additions to oil and gas properties (4,007,934) (1,073,490) (3,159,530) Proceeds from sales of oil and gas properties 488,750 17,425 264,072 Non-cash portion of oil and gas property additions 1,250,969 87,018 268,803 (Increase) decrease in drilling advances (72,020) 8,570 (8,570) ----------- ------------ ------------ Net cash used in investing activities (2,340,235) (960,477) (2,635,225) ----------- ------------ ------------ CASH FLOWS FROM FINANCING ACTIVITIES: Repurchase of Partnership Units (179,523) (161,899) (279,064) Distributions to Investing Partners (5,362,339) (5,411,224) (2,778,868) Distributions to Managing Partner, net (2,553,540) (2,527,170) (1,859,519) Payments of long-term debt (1,997,500) (5,312,500) (2,125,000) ----------- ------------ ------------ Net cash used in financing activities (10,092,902) (13,412,793) (7,042,451) ----------- ------------ ------------ NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS (1,045,673) 1,737,366 -- CASH AND CASH EQUIVALENTS, BEGINNING OF YEAR 1,737,470 104 104 ----------- ------------ ------------ CASH AND CASH EQUIVALENTS, END OF YEAR $ 691,797 $ 1,737,470 $ 104 =========== ============ ============ SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION: Cash paid during the year for interest $ 11,073 $ 285,000 $ 597,000 =========== ============ ============
The accompanying notes to financial statements are an integral part of this statement. 15 18 APACHE OFFSHORE INVESTMENT PARTNERSHIP STATEMENT OF CHANGES IN PARTNERS' CAPITAL
Managing Investing Partner Partners Total ------------ ------------- ------------- BALANCE, DECEMBER 31, 1994 $ 1,026,159 $ 3,148,503 $ 4,174,662 Distributions, net (1,859,519) (2,778,868) (4,638,387) Repurchase of Partnership Units -- (279,064) (279,064) Net income 1,799,940 4,414,461 6,214,401 ------------ ------------- ------------- BALANCE, DECEMBER 31, 1995 966,580 4,505,032 5,471,612 Distributions, net (2,527,170) (5,411,224) (7,938,394) Repurchase of Partnership Units -- (161,899) (161,899) Net income 2,651,779 8,475,136 11,126,915 ------------ ------------- ------------- BALANCE, DECEMBER 31, 1996 1,091,189 7,407,045 8,498,234 Distributions, net (2,553,540) (5,362,339) (7,915,879) Repurchase of Partnership Units -- (179,523) (179,523) Net income 1,967,386 6,276,772 8,244,158 ------------ ------------- ------------- BALANCE, DECEMBER 31, 1997 $ 505,035 $ 8,141,955 $ 8,646,990 ============ ============= =============
The accompanying notes to financial statements are an integral part of this statement. 16 19 APACHE OFFSHORE INVESTMENT PARTNERSHIP NOTES TO FINANCIAL STATEMENTS (1) ORGANIZATION: Nature of Operations - Apache Offshore Investment Partnership was formed as a Delaware general partnership on October 31, 1983, consisting of Apache Corporation (Apache) as Managing Partner and public investors as Investing Partners. The Partnership invested its entire capital in Apache Offshore Petroleum Limited Partnership, a Delaware limited partnership formed to conduct oil and gas exploration, development and production operations. The accompanying financial statements include the accounts of both the limited and general partnerships. Apache is the general partner of both Partnerships and holds approximately four percent of the 1,184.2 Investing Partner Units (Units) outstanding at December 31, 1997. The term "Partnership", as used hereafter, refers to the limited or the general partnership, as the case may be. The Partnership purchased, at cost, an 85 percent interest in offshore leasehold interests acquired by Apache as a co-venturer in a series of oil and gas exploration, development and production activities on 87 federal lease tracts (14 remain as of December 31, 1997) in the Gulf of Mexico, offshore Louisiana and Texas. The remaining 15 percent interest was purchased by an affiliated partnership or retained by Apache. The Partnership acquired an increased net revenue interest in Matagorda Island Blocks 681 and 682 in November 1992, when the Partnership and Apache formed a joint venture to acquire a 92.6 percent working interest in the blocks. Since inception, the Partnership has participated in 14 federal offshore lease sales in which 49 prospects were acquired (through the same date 40 prospects have been surrendered/sold). The Partnership's working interests in the nine remaining Venture prospects range from 1.61 percent to 7.08 percent. The Partnership's future financial condition and results of operations will depend largely upon prices received for its oil and natural gas production and the costs of acquiring, finding, developing and producing reserves. A substantial portion of the Partnership's production is sold under market-sensitive contracts. Prices for oil and natural gas are subject to fluctuations in response to changes in supply, market uncertainty and a variety of factors beyond the Partnership's control. These factors include worldwide political instability (especially in the Middle East), the foreign supply of oil and natural gas, the price of foreign imports, the level of consumer demand, and the price and availability of alternative fuels. With natural gas accounting for 84 percent of the Partnership's 1997 production and 69 percent of total proved reserves, on an energy equivalent basis, the Partnership is affected more by fluctuations in natural gas prices than in oil prices. Under the terms of the Partnership Agreements, the Investing Partners receive 80 percent and Apache receives 20 percent of revenue. The Investing Partners generally pay for 90 percent and Apache generally pays for 10 percent of exploration and development costs and expenses incurred by the Partnership. However, intangible drilling costs, interest costs and fees or expenses related to the loans incurred by the Partnership are allocated 99 percent to the Investing Partners and one percent to Apache until such time as the amount so allocated to the Investing Partners equals 90 percent of the total amount of such costs, including such costs incurred by Apache prior to the formation of the Partnerships. Right of Presentment - An amendment to the Partnership Agreement adopted in February 1994, created a right of presentment under which all Investing Partners have a limited and voluntary right to offer their Units to the Partnership twice each year to be purchased for cash. During 1996 and 1995, the Partnership paid the Investing Partners $162,000 and $279,000, respectively, to acquire a total of 40.48 Units. 17 20 During 1997, the Investing Partners sold a total of 13.67 Units to the Partnership for a total of $180,000 in cash. The first right of presentment was based upon a valuation date of December 31, 1996 for a purchase price of $13,621 per Unit, plus interest to the date of payment. The second presentment offer was based on a valuation date of June 30, 1997 for a purchase price of $10,946 per Unit, plus interest to the payment date. The Partnership is not in a position to predict how many Units will be presented for repurchase during 1998, however, no more than 10 percent of the outstanding Units may be purchased under the right of presentment in any year. The Partnership has no obligation to purchase any Units presented to the extent that it determines that it has insufficient funds for such purchases. The table below sets forth the total repurchase price and the repurchase price per Unit for all outstanding Units at each presentment period, based on the Right of Presentment valuation formula defined in the Amendment to the Partnership Agreement. The right of presentment offers, made twice annually, are based on a discounted Unit value formula. The discounted Unit value will be not less than the Investing Partner's share of: (a) the sum of (i) 70 percent of the discounted estimated future net revenues from proved reserves, discounted at a rate of 1.5 percent over prime or First National Bank of Chicago's base rate in effect at the time the calculation is made, (ii) cash on hand, (iii) prepaid expenses, (iv) accounts receivable less a reasonable reserve for doubtful accounts, (v) oil and gas properties other than proved reserves at cost less any amounts attributable to drilling and completion costs incurred by the Partnership and included therein, and (vi) the book value of all other assets of the Partnership, less the debts, obligations and other liabilities of all kinds (including accrued expenses) then allocable to such interest in the Partnership, all determined as of the valuation date, divided by (b) the number of Units, and fractions thereof, outstanding as of the valuation date. The discounted Unit value does not purport to be, and may be substantially different from, the fair market value of a Unit. (Unaudited) Total Right of Presentment Repurchase Repurchase Price Valuation Date Price Per Unit -------------------- ------------ ---------------- December 31, 1993 $ 20,980,558 $ 13,226 June 30, 1994 17,540,491 12,562 December 31, 1994 14,725,170 10,391 June 30, 1995 13,345,913 10,114 December 31, 1995 14,181,413 10,698 June 30, 1996 16,881,655 10,572 December 31, 1996 17,514,216 13,621 June 30, 1997 17,188,997 10,946 Capital Contributions - A total of $85,000 per Unit, or approximately 57 percent of investor subscriptions, were called through December 31, 1997. The Partnership determined the full purchase price of $150,000 per Unit was not needed, and upon completion of the last subscription call in November 1989, released the Investing Partners from their remaining liability. As a result of investors defaulting on cash calls and repurchases under the presentment offer discussed above, the original 1,500 Units have been reduced to 1,184.2 Units at December 31, 1997. 18 21 (2) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: Statement Presentation - The accounts of the Partnership are maintained on a tax basis method of accounting in accordance with the Articles of Partnership and methods of reporting allowed for federal income tax purposes. Financial statements included in reports which the Partnership files with the Securities and Exchange Commission (SEC) are required to be prepared in conformity with generally accepted accounting principles. Accordingly, the accompanying financial statements were prepared to reflect memorandum entries to convert from tax basis to the accrual basis method in conformity with generally accepted accounting principles. Cash Equivalents - The Partnership 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. Oil and Gas Properties - The Partnership uses the full cost method of accounting for financial statement purposes. Under this method, the Partnership capitalizes all acquisition, exploration and development costs incurred for the purpose of finding oil and gas reserves. The amounts capitalized under this method include dry hole costs, leasehold costs, engineering, geological, exploration, development and other similar costs. Costs associated with production and administrative functions are expensed in the period incurred. Unless a significant portion of the Partnership's reserve volumes are sold (greater than 25 percent), proceeds from the sale of oil and gas properties are accounted for as reductions to capitalized costs, and gains or losses are not recognized. Capitalized costs of oil and gas properties are amortized on the future gross revenue method whereby depreciation, depletion and amortization (DD&A) expense is computed quarterly by dividing current period oil and gas sales by estimated future gross revenue from proved oil and gas reserves (including current period oil and gas sales) and applying the resulting rate to the net cost of evaluated oil and gas properties, including estimated future development costs. The amortizable base includes estimated dismantlement, restoration and abandonment costs, net of estimated salvage values. The Partnership limits the capitalized costs of oil and gas properties, net of accumulated DD&A, to the estimated future net cash flows from proved oil and gas reserves discounted at 10 percent, plus the lower of cost or fair value of unproved properties included in the costs being amortized, if any. If capitalized costs exceed this limit, the excess is charged to DD&A expense. The Partnership has not recorded any write-downs of capitalized costs for the three years presented. Revenue Recognition - The Partnership 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 the Partnership is entitled based on its interests in the properties. 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 its entitled share through production. Per Unit Calculation - The net income per Investing Partner Unit is calculated by dividing the aggregate Investing Partners' net income for the period by the number of weighted average Investing Partner Units outstanding for that period. 19 22 Income Taxes - The profit or loss of the Partnership for federal income tax reporting purposes is included in the income tax returns of the partners. Accordingly, no recognition has been given to income taxes in the accompanying financial statements. Use of Estimates - The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant estimates with regard to these financial statements include the estimate of proved oil and gas reserve quantities and the related present value of estimated future net cash flows therefrom. See "Supplemental Oil and Gas Disclosures" below. Receivable from/Payable to Apache - Receivable from/payable to Apache represents the net result of the Investing Partners' revenue and expenditure transactions in the current month. Generally, this amount will be funded by or transferred to Apache, as appropriate, in the month after the Partnership's transactions are processed and the net results from operations are determined. Maintenance and Repairs - Maintenance and repairs are charged to expense as incurred. Recompletions and replacements that improve or extend the life of existing properties are capitalized. (3) COMPENSATION TO APACHE Apache is entitled to the following types of compensation and reimbursement for costs and expenses.
Total incurred by the Investing Partners for the year ended ` December 31, ----------------------------------- 1997 1996 1995 ------- ------- ------- (In thousands) a. Apache is reimbursed for general, administrative and overhead expenses incurred in connection with the management and operation of the Partnership's business $ 432 $ 426 $ 424 ======= ======= ======= b. Apache is reimbursed for exploration and development overhead costs incurred in the Partnership's operations, which costs are based on exploration and development activities and are capitalized to oil and gas properties. $ 222 $ 77 $ 142 ======= ======= =======
Apache operates certain Partnership properties. Billings to the Partnership are made on the same basis as to unaffiliated third parties or at prevailing industry rates. 20 23 (4) OIL AND GAS PROPERTIES The following tables contain direct cost information and changes in the Partnership's oil and gas properties for each of the years ended December 31. All costs of oil and gas properties are currently being amortized.
Oil and Gas Properties 1997 1996 1995 ---------------------- -------- -------- -------- (In thousands) Balance, beginning of year $ 162,878 $ 161,822 $ 158,926 Costs incurred during the year: Leasehold additions (retirements) - Investing Partners 5 23 (3) Managing Partner 1 3 -- Development - Investing Partners 3,906 1,020 3,092 Managing Partner 96 27 71 Property sales proceeds(1) - Investing Partners (440) (13) (234) Managing Partner (49) (4) (30) --------- --------- --------- Balance, end of year $ 166,397 $ 162,878 $ 161,822 ========= ========= =========
(1) The 1997 property sales proceeds are a result of the sale of the Glenda Prospect (High Island Block A-6) and the sale of the Partnership's interest in a farmout on the Roberto Prospect (Matagorda Island Block 670/682). The 1996 property sales proceeds are a result of the sale of the No-See-Um Prospect (Vermillion Block 226/337). The Partnership's interests sold in 1995 related to non-producing, non-unitized leases.
Accumulated Depreciation, Managing Investing Depletion and Amortization Partner Partners Total -------------------------- -------- --------- --------- (In thousands) Balance, December 31, 1994 $ 18,732 $ 127,947 $ 146,679 Provisions 441 3,970 4,411 --------- --------- --------- Balance, December 31, 1995 19,173 131,917 151,090 Provisions 467 3,853 4,320 --------- --------- --------- Balance, December 31, 1996 19,640 135,770 155,410 Provisions 265 2,718 2,983 --------- --------- --------- Balance, December 31, 1997 $ 19,905 $ 138,488 $ 158,393 ========= ========= =========
The Partnership's aggregate DD&A expense was 25 percent, 25 percent and 34 percent of oil and gas sales for 1997, 1996 and 1995, respectively. (5) MAJOR CUSTOMER INFORMATION Revenues received from major third party customers that exceeded 10 percent of oil and gas sales are discussed below. No other third party customers individually accounted for more than ten percent of oil and gas sales. Beginning in April 1996, Producers Energy Marketing LLC (ProEnergy), a 48 percent owned affiliate of Apache, became the principal purchaser of the Partnership's natural gas production. Sales to ProEnergy accounted for 87 percent and 73 percent of the Partnership's oil and gas sales in 1997 and 1996, respectively. The prices the Partnership receives for its gas production are, in the opinion of Apache, comparable to the prices that would be received from a non-affiliated party. 21 24 Natural Gas Clearinghouse (NGC) was the principal purchaser of the Partnership's spot market gas production from April 1990 through September 30, 1995. Sales to NGC accounted for 49 percent of the Partnership's oil and gas sales in 1995. Sales of oil and condensate to Plains Petroleum Operating Co. accounted for nine percent, 10 percent, and 28 percent of the Partnership's oil and gas sales in 1997, 1996 and 1995, respectively. Effective November 1992, with Apache's and the Partnership's acquisition of an additional net revenue interest in Matagorda Island Blocks 681 and 682, a wholly-owned subsidiary of Apache purchased from Shell Oil Company (Shell) a 14.4 mile natural gas and condensate pipeline connecting Matagorda Island Block 681 to onshore markets. The Partnership paid an Apache subsidiary transportation fees totaling $.2 million in each of 1997, 1996 and 1995 for the Partnership's share of gas. The fees, which are netted against oil and gas sales on the income statement, were at the same rates and terms as previously paid to Shell. The Partnership'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. The Partnership has not experienced material credit losses on such sales. (6) DEBT In July 1992, through Apache, the Partnership obtained a line of credit. Proceeds from this revolving bank facility were used to repay a limited recourse note which had previously been issued to finance offshore leasehold in the Partnership. The $2.0 million of outstanding debt at December 31, 1996, was due in 1998; however, on January 31, 1997, the Partnership repaid the loan in its entirety and terminated the facility. It is expected that cash flows from operating activities will be sufficient to meet the Partnership's liquidity needs for routine operations over the next two years. However, in the event future short-term operating cash requirements are greater than the Partnership's financial resources, the Partnership will seek short-term, interest-bearing advances from the Managing Partner as needed. (7) FINANCIAL INSTRUMENTS The carrying amount of cash and cash equivalents, accrued revenue receivables and other financial instruments included in the accompanying balance sheet approximated their fair values at December 31, 1997 and 1996. The Partnership did not engage in hedging activities during the three-year period ended December 31, 1997. 22 25 SUPPLEMENTAL OIL AND GAS DISCLOSURES (UNAUDITED) Oil and Gas Reserve Information - Proved oil and gas reserve quantities are based on estimates prepared by Ryder Scott Company Petroleum Engineers, independent petroleum engineers, in accordance with guidelines established by the SEC. These reserves are subject to revision due to the inherent imprecision in estimating reserves, and are revised as additional information becomes available. All the Partnership's reserves are located offshore Texas and Louisiana. 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. (Oil in Mbbls and gas in MMcf)
1997 1996 1995 ----------------- ------------------ ------------------ Proved Reserves Oil Gas Oil Gas Oil Gas --------------- ------ ------ ------ ------ ------ ------ Beginning of year 1,065 16,396 1,169 20,848 1,237 25,122 Extensions, discoveries and other additions 92 289 -- 252 8 182 Revisions of previous estimates 281 (150) 60 957 134 1,596 Production (125) (3,878) (164) (5,651) (210) (6,052) Sales of reserves in-place (391) (146) -- (10) -- -- ------ -------- ------ -------- ------ ------- End of year 922 12,511 1,065 16,396 1,169 20,848 ====== ======= ====== ======= ====== ======= Proved Developed ---------------- Beginning of year 917 14,223 1,112 18,798 1,150 22,701 ====== ======= ====== ======= ====== ======= End of year 883 10,824 917 14,223 1,112 18,798 ====== ======= ====== ======= ====== =======
23 26 SUPPLEMENTAL OIL AND GAS DISCLOSURES - (CONTINUED) (UNAUDITED) Future Net Cash Flows - The following table sets forth unaudited information concerning future net cash flows from proved oil and gas reserves. Future cash inflows are based on year-end prices. Operating costs and future development costs are based on current costs with no escalation. As the Partnership pays no income taxes, estimated future income tax expenses are omitted. This information does not purport to present the fair value of the Partnership's oil and gas assets, but does present a standardized disclosure concerning possible future net cash flows that would result under the assumptions used.
Discounted Future Net Cash Flows Relating to Proved Reserves At December 31, ----------------------------------- 1997 1996 1995 --------- ---------- --------- (In thousands) Future cash inflows $ 46,733 $ 97,475 $ 75,770 Future production and development costs (10,739) (14,072) (10,615) --------- ---------- ---------- Net cash flows 35,994 83,403 65,155 10 percent annual discount rate (9,137) (21,325) (16,040) --------- ---------- ---------- Discounted future net cash flows $ 26,857 $ 62,078 $ 49,115 ========= ========== ==========
The following table sets forth the principal sources of change in the discounted future net cash flows:
For the Years Ended December 31, ------------------------------------- 1997 1996 1995 --------- ---------- --------- (In thousands) Sales, net of production costs $ (11,621) $ (16,294) $ (11,766) Net change in prices and production costs (31,310) 22,269 15,808 Extensions, discoveries and other additions 1,751 862 566 Revisions of quantities 2,616 3,920 4,447 Accretion of discount 6,208 4,912 3,523 Changes in future development costs 617 (607) 301 Sales of reserves in-place (468) (18) -- Changes in production rates and other (3,014) (2,081) 1,004 --------- ---------- ---------- $ (35,221) $ 12,963 $ 13,883 ========= ========== ==========
24 27 ITEM 9. CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND FINANCIAL DISCLOSURE None. PART III ITEM 10. DIRECTORS AND EXECUTIVE OFFICERS OF THE PARTNERSHIP All management functions are performed by Apache, the Managing Partner of the Partnership. The Partnership itself has no officers or directors. Information concerning the officers and directors of Apache set forth under the captions "Information About Nominees for Election as Directors", "Information About Continuing Directors", "Executive Officers of the Company", and "Voting Securities and Principal Holders" in the proxy statement relating to the 1998 annual meeting of shareholders of Apache (the Apache Proxy) is incorporated herein by reference. ITEM 11. EXECUTIVE COMPENSATION See Note (3), "Compensation to Apache" of the Partnership's financial statements, under Item 8 above, for information regarding compensation to Apache as Managing Partner. The information concerning the compensation paid by Apache to its officers and directors set forth under the captions "Summary Compensation Table", "Option/SAR Grants Table", "Option/SAR Exercises and Year-End Value Table", "Employment Contracts and Termination of Employment and Change-in-Control Arrangements", and "Director Compensation" in the Apache Proxy is incorporated herein by reference. ITEM 12. SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT Apache, as an Investing Partner and the General Partner, owns 53 Units, or approximately four percent of the outstanding Units of the Partnership, as of December 31, 1997. Directors and officers of Apache own 9.7 Units, approximately one percent of the Partnership's Units, as of December 31, 1997. Apache owns a one-percent General Partner interest (15 equivalent Units). To the knowledge of the Partnership, no Investing Partner owns, of record or beneficially, more than five percent of the Partnership's outstanding Units. ITEM 13. CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS Effective November 1992, with Apache's and the Partnership's acquisition of an additional net revenue interest in Matagorda Island Blocks 681 and 682, a wholly-owned subsidiary of Apache purchased from Shell a 14.4 mile-long natural gas and condensate pipeline connecting Matagorda Island Block 681 to onshore markets. The Partnership paid the Apache subsidiary transportation fees totaling $.2 million in each of 1997, 1996 and 1995 for Partnership's share of gas. The fees, which are netted against oil and gas sales on the income statement, were at the same rates and terms as previously paid to Shell. Apache markets the Partnership's natural gas production through ProEnergy, an affiliate of Apache. At December 31, 1997, Apache held a 48 percent interest in ProEnergy. The prices the Partnership receives for its gas production are, in the opinion of Apache, comparable to the prices that would be received from a non-affiliated party. 25 28 PART IV ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K a. (1) Financial Statements - See accompanying index to financial statements in Item 8 above. (2) Financial Statement Schedules - See accompanying index to financial statements in Item 8 above. (3) Exhibits 3.1 Partnership Agreement of Apache Offshore Investment Partnership (incorporated by reference to Exhibit (3)(i) to Form 10 filed by Partnership with the Commission on April 30, 1985, Commission File No. 0-13546). 3.2 Amendment No. 1, dated February 11, 1994, to the Partnership Agreement of Apache Offshore Investment Partnership (incorporated by reference to Exhibit 3.3 to Partnership's Annual Report on Form 10-K for the year ended December 31, 1993, Commission File No. 0-13546). 3.3 Limited Partnership Agreement of Apache Offshore Petroleum Limited Partnership (incorporated by reference to Exhibit (3)(ii) to Form 10 filed by Partnership with the Commission on April 30, 1985, Commission File No. 0-13546). 10.1 Credit Agreement dated July 24, 1992, between Apache, the Lenders named therein and the First National Bank of Chicago, as Agent (incorporated by reference to Exhibit 10.1 to Partnership's Quarterly Report on Form 10-Q for the quarter ended June 30, 1992, Commission File No. 0-13546). 10.2 Second Amendment, dated as of July 29, 1994, to Credit Agreement between Apache, the Lenders named therein and the First National Bank of Chicago, as Agent (incorporated by reference to Exhibit 10.1 to Partnership's Quarterly Report on Form 10-Q for the quarter ended September 30, 1994, Commission File No. 1-13546). 10.3 Third Amendment, dated as of March 31, 1995, to the Credit Agreement between Apache, the Lenders named therein and the First National Bank of Chicago, as Agent (incorporated by reference to Exhibit 10.6 to Partnership's Annual Report on Form 10-K for the year ended December 31, 1995, Commission File No. 0-13546). 10.4 Form of Assignment and Assumption Agreement between Apache Corporation and Apache Offshore Petroleum Limited Partnership (incorporated by reference to Exhibit 10.2 to Partnership's Quarterly Report on Form 10-Q for the quarter ended June 30, 1992, Commission File No. 0-13546). 10.5 Joint Venture Agreement, dated as of November 23, 1992, between Apache Corporation and Apache Offshore Petroleum Limited Partnership (incorporated by reference to Exhibit 10.6 to Partnership's Annual Report on Form 10-K for the year ended December 31, 1992, Commission File No. 0-13546). 10.6 Matagorda Island 681 Field Purchase and Sale Agreement with Option to Exchange, dated November 24, 1992, between Apache Corporation, Shell Offshore, Inc. and SOI Royalties, Inc. (incorporated by reference to Exhibit 10.7 to Partnership's Annual Report on Form 10-K for the year ended December 31, 1992, Commission File No. 0-13546). *23.1 Consent of Ryder Scott Company Petroleum Engineers. *27.1 Financial Data Schedule. 26 29 99.1 Consent statement of the Partnership, dated January 7, 1994 (incorporated by reference to Exhibit 99.1 to Partnership's Annual Report on Form 10-K for the year ended December 31, 1993, Commission File No. 0-13546). 99.2 Proxy statement dated March 30, 1998, relating to the 1998 annual meeting of shareholders of Apache Corporation (incorporated by reference to the document filed by Apache pursuant to Rule 14A, Commission File No. 1-4300). *Filed herewith. b. Reports filed on Form 8-K. No reports on Form 8-K were filed during the fiscal quarter ended December 31, 1997. 27 30 SIGNATURES Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Partnership has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. APACHE OFFSHORE INVESTMENT PARTNERSHIP By: Apache Corporation, General Partner Date: March 23, 1998 By: /s/ Raymond Plank ---------------------------------------- Raymond Plank, Chairman and Chief Executive Officer POWER OF ATTORNEY The officers and directors of Apache Corporation, General Partner of Apache Offshore Investment Partnership, whose signatures appear below, hereby constitute and appoint Raymond Plank, G. Steven Farris, Z.S. Kobiashvili and Roger B. Plank, 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 all that 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 Partnership and in the capacities and on the dates indicated.
Signature Title Date - --------- ----- ---- /s/ Raymond Plank Chairman and Chief Executive March 23, 1998 - ------------------------------ Officer (Principal Executive Raymond Plank Officer) /s/ Roger B. Plank Vice President and Chief March 23, 1998 - ------------------------------ Financial Officer (Principal Roger B. Plank Financial Officer) /s/ Thomas L. Mitchell Vice President and Controller March 23, 1998 - ----------------------------- (Principal Accounting Officer) Thomas L. Mitchell
31
Signature Title Date - --------- ----- ---- /s/ Frederick M. Bohen Director - ------------------------------ Frederick M. Bohen March 23, 1998 /s/ G. Steven Farris Director - ------------------------------ G. Steven Farris March 23, 1998 /s/ Randolph M. Ferlic Director - ------------------------------ Randolph M. Ferlic March 23, 1998 /s/ Eugene C. Fiedorek Director - ------------------------------ Eugene C. Fiedorek March 23, 1998 /s/ W. Brooks Fields Director - ------------------------------ W. Brooks Fields March 23, 1998 /s/ A.D. Frazier, Jr. Director - ------------------------------ A.D. Frazier, Jr. March 23,1998 /s/ Stanley K. Hathaway Director - ------------------------------ Stanley K. Hathaway March 23, 1998 /s/ John A. Kocur Director - ------------------------------ John A. Kocur March 23, 1998 /s/ George D. Lawrence Jr. Director - ------------------------------ George D. Lawrence Jr. March 23, 1998 /s/ Mary Ralph Lowe Director - ------------------------------ Mary Ralph Lowe March 23, 1998 /s/ F.H. Merelli Director - ------------------------------ F.H. Merelli March 23, 1998 /s/ Joseph A. Rice Director - ------------------------------ Joseph A. Rice March 23, 1998
   1
                                                                   EXHIBIT 23.1


                       [Letterhead of Ryder Scott Company]


As independent petroleum engineers, we hereby consent to the reference in this
Form 10-K of Apache Offshore Investment Partnership to our Firm's name and our
Firm's review of the proved oil and gas reserve quantities of Apache Offshore
Investment Partnership as of January 1, 1998.


                                                   /s/ Ryder Scott Company
                                                   /s/ Petroleum Engineers

                                                   Ryder Scott Company
                                                   Petroleum Engineers


Houston, Texas
March 18, 1998

 

5 12-MOS DEC-31-1997 DEC-31-1997 691,797 0 1,756,180 0 0 2,519,997 166,397,087 158,392,914 10,524,170 1,877,180 0 0 0 0 8,646,990 10,524,170 12,066,643 12,225,647 3,428,671 3,428,671 552,818 0 12,818 8,244,158 0 8,244,158 0 0 0 8,244,158 5,260 5,260