Chevron                                                                                     Exhibit 10.20
               WARREN PETROLEUM COMPANY                                                     PRODUCT SALES AGREEMENT
               A Division of Chevron U.S.A. Inc.

Prepare in original and four copies.
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 Purchaser                                                            Confirming Arrangements Made With
     Empire Gas Corporation                                             Paul Lindsay
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 Address                                                              Arrangements Made by          Date
     P.O. Box 303                                                       L.C. Shull                   6/1/93
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     Lebanon, MO  65536                                               Warren No.                    Purchaser No.

                                                                         No. S 58558
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 1.  Warren will sell the following during period of: 6/1/93 and thereafter (See Item No. 6 below)
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          Product                       Quantity                  Delivery Point             Product Sale Price
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        Description            Approx. Bbls.      Measurement.       Location             Methods     Cents/Gallon
                            (net @ 60 Degrees F)    (see 2)                               (see 3)
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 Commercial Propane         See                   AV1                       Millis, WY
- --------------------------------------------------------------             ----------------------------------------
                            Attachment                         Origin
- --------------------------------------------------------------             ----------------------------------------
                            A
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                                                                            Nampa, ID     AV1          See
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                                                               Destination                             Attachment
- --------------------------------------------------------------             ----------------------------------------
                                                                                                       A
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 2.  Measurement (See General Provisions, Item 2)      Basis:  V -- Volumetric per API Tables 23 and 24 or 23A and
     A. Trucks           D. Ship or Barge                           24A or 5A and 6A
     ---------           E. Inventory Transfer                 M -- Mass per GPA 8182
     B. Tank Cars        F. Other _________________            1 -- Origin   2 - Destination
     C. Pipeline
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 3.  Methods

     A. Trucks           D. To Ship or Barge      F.  Other ___________________
     ---------           E. Inventory Transfer
     B. To Tank Car
     C. To Pipeline
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 4.  Specifications

     Commercial Propane, as per GPA specifications
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 5.  Product:  /X/  Stenched       / /  Unstenched
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 6.  Terms
     / /  Expires on ________________   /X/  Until 5/31/94 and continuing year to year thereafter unless and until
                                             cancelled at the end of any year by either party giving the other at
                                             least 60 days written notice prior to the proposed termination date.
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 7.  Warren sends statements, invoices and shipping documentation to
     Same as above
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 8.  Terms of Payment
     Net 10 days from date of invoice.
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 9.  Special Provisions

     The terms and conditions set forth in Attachment A to this Agreement are incorporated herein by reference and
     made a part of this Agreement.
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 10. In addition to the above terms and conditions, the General Provisions of this Product Sales Agreement as set
     forth on the reverse side hereof are incorporated herein by reference and made a part of this Agreement.
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 If you are in agreement with the foregoing terms and conditions, please so indicate by signing below and returning
 one copy of the Agreement to Warren.
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 Accepted and Agreed to                                        Warren Petroleum Company
                                                               A Division of Chevron U.S.A. Inc.
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 By  /s/ Earl Noe                                              By  /s/  J.L. Gawronski
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 Title                                       Date              Title
                                                               J.L. Gawronski, Manager, Western District
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                             PRODUCT SALES AGREEMENT
                               GENERAL PROVISIONS

1.   DELIVERIES
     A.   When delivery is point of origin, delivery shall be deemed to have
          been completed:
          1.   To ships or barges when the product has passed the vessel's
               loading flange;
          2.   To tank trucks when the product has actually been delivered into
               the truck;
          3.   To tank cars when the carrier accepts the same for shipment;
          4.   To pipelines upon metering of the product.
     B.   When delivery is point of destination, delivery shall be deemed to
          have been completed;
          1.   From ships or barges when the product has passed the vessel's
               discharge flange;
          2.   From tank trucks when truck has been placed at buyer's facilities
               for unloading;
          3.   From tank cars when carrier delivers same at the destination;
          4.   From pipeline upon metering of the product.
     C.   When by an in-line product transfer, delivery shall be deemed to have
          been completed upon execution of the order by the pipeline carrier.
     D.   If any common or contract carrier trucks are used, Warren shall not be
          liable to Buyer for quantity or quality of product. After completion
          of loading at the point of origin, Buyer agrees that the handling,
          care or use of product delivered as herein provided shall thereafter
          be at Buyer's sole risk and expense.
2.   MEASUREMENT -- Measurement shall be done in the manner customarily utilized
     at the point of delivery so long as it is in accordance with one of the
     following alternatives.
     A.   On all deliveries into/out of tank cars, the quantity shall be
          determined by official tank car capacity tables, meters with no vapor
          return, or by weighing, in accordance with GPA Publication 8162 and
          all revisions thereof.
     B.   On all deliveries into/out of transport and tank truck equipment,
          quantities shall be determined by meter with no vapor return, slip
          tube, rotary gauging device or weighing, in accordance with GPA
          Publication 8162 and all revisions thereof.
     C.   On all deliveries into/out of pipeline, quantity shall be determined
          by turbine or positive displacement pipeline meter in accordance with
          API Manual of Petroleum Measurement Standards and all revisions
          thereof.
     D.   On all deliveries to/from ships or barges, shore tank or turbine or
          positive displacement meter measurements shall determine quantity,
          unless otherwise agreed upon. Use of meters shall not allow vapor
          return.
     E.   All quantities shall be corrected to 60 degrees Fahrenheit and
          equilibrium vapor pressure at 60 degrees Fahrenheit.
     F.   Volume and compressibility correction factors shall be determined from
          referenced API tables or computer programs used to generate these
          tables.
3.   PASSAGE OF TITLE AND WARRANTY OF TITLE -- Title to the product and risk of
     loss shall pass to Buyer upon delivery. Warren warrants to Buyer that it
     has title to the product(s) delivered by it hereunder and the right to
     deliver same, and agrees to indemnify, defend and hold the Buyer harmless
     from and against any loss, claim or demand by reason of any failure of such
     title or breach of this warranty. Except as set forth in this paragraph 3
     and elsewhere herein, WARREN MAKES NO OTHER WARRANTY WITH RESPECT TO THE
     PRODUCT OR OTHERWISE, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF
     MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE.
4.   TAXES -- Any tax, duty, toll, fee, impost, charge or other exaction, or the
     amount equivalent thereto, nor or hereafter imposed, levied or assessed by
     any governmental authority upon, measured by, incident to or as a result of
     the transaction herein provided for, or the transportation, importation,
     production, manufacture, use or ownership of the goods or source materials
     thereof which are the subject matter of this Agreement, shall, if
     collectible or payable by Warren, be paid by Buyer on demand by Warren.
     Notwithstanding the foregoing, it is understood and agreed that any
     personal property taxes levied or assessed by any governmental authority
     upon the value of the products covered by this Agreement shall be paid by
     the party having title thereto at the time of such assessment. Buyer shall
     furnish Warren proper exemption certificate where tax exemption is claimed
     on any or all product(s) delivered hereunder, or shall pay such taxes.
5.   FUTURE OBLIGATIONS -- Supplier/Purchaser Relationship -- This Agreement is
     freely entered into between the parties hereto. It does not reflect or grow
     out of any previously existing legal obligation which either party may have
     to the other to supply any petroleum product. Part of the consideration for
     this Agreement is each party's express agreement that neither party expects
     or desires that this Agreement form the basis of any additional future
     obligation of either party to supply any petroleum product to the other. To
     the extent that under present or future laws or regulations this Agreement
     may give rise to such obligations, each party hereby waives in advance its
     right to enforce any such obligation and upon submittal of written notice
     of termination by one party to the other under this Agreement, it is agreed
     that both parties intend to terminate any such additional future
     supplier/buyer relationship which may be created by this Agreement under
     such laws or regulations. Additionally, at any time hereafter, the parties
     agree to submit and/or execute documentation in compliance with the then
     applicable laws and regulations as may be necessary to evidence said
     termination insofar as the parties are concerned. The parties further agree
     to obtain any other consents or authorization required under the then
     applicable laws and regulations insofar as reasonably possible to give
     effect to the intent hereof.
6.   GOVERNMENT REGULATIONS & LAW -- Warren warrants that the product it
     delivers hereunder will be produced and delivered in full compliance with
     all applicable federal and state laws and regulations and all Presidential
     Proclamations which may be applicable. This agreement shall be construed in
     accordance with the laws of the State of Oklahoma including the Uniform
     Commercial Code. Buyer agrees to comply with the provisions contained in
     Exhibit "A" attached hereto, to the extent that such provisions are legally
     applicable to Buyer.
7.   FORCE MAJEURE -- If either party is rendered unable, wholly or in part, to
     perform its obligations under this Agreement (other than to make payments
     due hereunder) due to force majeure, defined herein as acts of God, flood,
     fire, explosion or storm; transportation difficulty, strike, lockout or
     other industrial disturbance; war or any law, rule, order or action of any
     court or instrumentality of the federal or any state government;
     exhaustion, reduction or unavailability of products from one or more of the
     sources of supply from which deliveries are normally made hereunder, or
     exhaustion or unavailability or delay in delivery of any material or
     product necessary in the manufacture of the product(s) deliverable
     hereunder; or any other cause or causes beyond its control whether similar
     or dissimilar to those stated above, then in any such event, it is agreed
     that the affected party shall give promptly after the occurrence of force
     majeure notice and full particulars of such force majeure to the other
     party, the obligations of the affected party shall be suspended for the
     duration of such inability to perform but for no longer period, and such
     cause shall, so far as possible, be remedied with all reasonable dispatch.
     Force majeure shall also include the failure of any third party pipeline,
     through no fault of the parties hereto, to accept the referenced products
     for transportation to or from Warren's facilities.
8.   ASSIGNMENT -- This Agreement shall extend to and be binding upon the
     parties hereto, their heirs, executors, administrators, successors and
     assigns; but it is expressly agreed that neither party shall voluntarily
     assign this Agreement without the prior written consent of the other.
9.   NOTICE -- Any notice hereunder shall be in writing and shall be delivered
     personally, by mail, by telex, or by telegram to the address first
     hereinabove set forth, unless changed by notice. Such notice shall be
     deemed to have been given on the date of the delivery thereof.
10.  WAIVER -- The waiver by either party of the breach of any provisions hereof
     by the other party shall not be deemed to be a waiver of the breach of any
     other provision or provisions hereof or of any subsequent or continuing
     breach of such provisions or provisions.
11.  ALTERATIONS -- No oral promises, agreements or warranties shall be deemed a
     part hereof, nor shall any alteration or amendment of this Agreement, or
     waiver of any of its provisions, be binding upon either party hereto unless
     the same be in writing, signed by the party charged.
12.  INSPECTION -- Unless otherwise specified, Buyer will provide gauging,
     sampling, and testing at no charge to Warren. Either party may secure
     outside inspectors to perform this work and if this is done, the payments
     for these services will be shared equally among the parties unless some
     other arrangement for payment is mutually agreed upon.
13.  MARINE PROVISIONS -- If delivery of any products hereunder is to be
     accomplished by waterborne transportation, the provisions set out in the
     "Marine Provisions" attached hereto and made a part hereof shall apply to
     such deliveries.
14.  INVOICES AND TERMS OF PAYMENT -- Invoices will be prepared by Warren and
     transmitted to the Buyer from time to time during the month.  Unless
     otherwise specified, payment is due within ten (10) days after receipt of
     invoice.
15.  FINANCIAL RESPONSIBILITY -- If in the judgment of Warren the financial
     responsibility of Buyer becomes impaired or unsatisfactory, advance cash
     payments or acceptable security (including, but not limited to a letter of
     credit from a financial institution acceptable to Warren) shall be given by
     Buyer upon demand of Warren, and Buyer's failure to abide by the provisions
     of this Paragraph shall be considered a breach hereof and in such event
     payment for all products delivered hereunder shall be due and owing and
     shall be paid immediately, and Warren may without waiving any rights or
     remedies it may have, without further deliveries until such payment or
     security is received. Buyer's duty to provide the hereinabove credit
     assurance shall be a condition precedent to Warren's obligation to perform
     under this agreement.
16.  CONFLICTS OF INTEREST -- No director, employee or agent of either party
     shall give or receive any commission, fee, rebate, gift or entertainment of
     significant cost or value in connection with this Agreement. Any
     representative(s) authorized by either party may audit the applicable
     records of the other party solely for the purpose of determining whether
     there has been compliance with this paragraph.
17.  AUDIT -- Each party and its duly authorized representatives shall have
     access to the accounting records and other documents maintained by the
     other party which related to the product being delivered to the other party
     under this Agreement and shall have the right to audit such records once a
     year at any reasonable time or times during the term of this Agreement and
     for two years after the year in which this Agreement terminates. Neither
     party shall make claim on the other for any adjustment after said two-year
     period.
18.  QUALITY -- Any requirements of customer pertaining to potential
     contaminants and/or specific hydrocarbon composition not listed in Warren's
     product specification must be identified by customer and allowable
     concentrations agreed to in writing by both parties prior to delivery of
     product to be effective under this Agreement.
19.  WARREN'S TANK CARS -- Unless Warren's tank care are unloaded and returned
     to railroad, Buyer shall be liable to Warren for rental at the rate of
     _______________ for each day or fraction thereof in excess of _________
     days (LPG cars). Tank cars shall not be diverted without Warren's written
     consent.
20.  PRICES -- Prices at destination include allowance for transportation
     charges at lowest applicable common carrier rate between shipping point and
     actual destination. Warren reserves the right to add other shipping points
     and to change the shipping points on which destination prices are based.
     Notice of any such additions or changes in shipping points shall be given
     to Buyer in writing and unless objected to within ten days after receipt,
     said shipping points shall be deemed accepted by Buyer. Deletions of
     shipping points shall be made in like manner with like effect. Destination
     prices are subject to adjustment with changes in common carrier freight
     rates and any changes in applicable freight rates shall be for Buyer's
     account. Unless otherwise provided, if common carrier is employed,
     transportation charges shall be paid by consignee directly to carrier.

     If prices are based on quotations in industry publications, quotations
     published on dates of shipment shall apply. If no quotations of shipment
     are published in designated industry publication, the last previous
     quotations in such publication shall govern.



                                 ATTACHMENT A TO
                        PRODUCT SALES AGREEMENT No. 58558

1.   SHORTAGE OF PRODUCTS.  Due to uncertainties in the supply/demand situation,
Warren may not have sufficient supplies of product to be delivered hereunder to
meet the full requirements of all of its customers, contract or otherwise.
Whenever that situation exists, Warren shall have, in addition to any other
rights Warren may have under this Agreement, the right to reduce deliveries of
such product on any basis which in Warren's opinion is equitable, allowing for
such priorities to such classes of customers as Warren deems appropriate. If any
such reduction occurs, Buyer shall have the option to terminate this Agreement
as to any or all products by fifteen (15) day's notice, given within thirty (30)
days of the notice of reduction.

2.   PRODUCT HAZARDS.  Buyer acknowledges receipt of Warren's Safety Bulletin
for odorized propane and is knowledgeable of the hazards or risks in handling or
using the product. Buyer warrants that Buyer shall inform its employees,
contractors and customers of any hazards or risks associated with the product.

3.   CONDUCT OF BUYER'S BUSINESS.  Buyer in the performance of this Agreement is
engaged in an independent business and nothing herein contained shall be
construed as giving Warren any right to control Buyer in any way in its
performance of its business. Warren has no right to exercise control over any of
Buyer's employees. All employees of Buyer shall be entirely under the control
and direction of Buyer who shall be responsible for their actions and omissions.

4.   PAYMENT.  If payment is not made within the time allowed under this
Agreement, then Warren may charge interest on the unpaid balance at the lesser
of 1 1/2% per month or the highest rate permitted by Oklahoma law and Warren
shall be entitled to recover in any court in Oklahoma its reasonable costs of
collection, including attorney's fees.

5.   U.S. GOVERNMENT SUBCONTRACT REQUIREMENTS.  If this contract is a
subcontract under contract(s) with the United States Government, it incorporated
by this reference, and each party shall always comply with, all provisions
required by United States laws, regulations, and orders applicable to a covered
subcontract, including (without limitation) those relating to equal employment
opportunity, utilization of minority business enterprises, listing of employment
openings, employment of the handicapped and maintenance of nonsegregated
facilities.

6.   PRICES.  Product and freight prices hereunder may be changed at any time by
Warren upon written notice effective when deposited in the United States mail,
faxed or otherwise transmitted to customer. If any such notice shall increase
Warren's price to Buyer at any shipping point or destination above Warren's
highest price for such product or freight in effect during the elapsed portion
of the calendar year in which Warren's notice is effective, Buyer may be written
notice to Warren given and effective within fifteen (15) days from the date of
Warren's notice, terminate this contract with respect to such shipping point or
destination.

7.   ODORIZATION.  Unless otherwise specifically agreed in writing, Buyer hereby
requests that the propane sold hereunder be odorized with 1.5lbs. of ethyl
mercaptan per 10,000 gallons. Buyer warrants that compliance with its request
will satisfy all applicable legal requirements, and agrees to monitor and
maintain the stench at or above the legally required levels.

8.   SALE OF BUSINESS.  The Buyer agrees that in the event of a sale of its LP-
gas business or substantially all of the assets used in its LP-business, Buyer
will require the purchaser of such assets as a condition of the sale to assume
the obligation of Buyer under this agreement.

9.   TRADEMARK.  Buyer acknowledges that the CHEVRON and WARRENGAS Trademarks
are valuable property rights belonging to Chevron Corporation and its
subsidiaries, including Chevron U.S.A. Inc. and that any use thereof by Buyer in
connection with this agreement is solely for the purposes of advertising
products obtained from such subsidiaries. Upon termination of this agreement,
Buyer agrees that it will make no further use of such trademarks or any other
mark name or designs confusingly similar herewith.



10.  QUANTITY.  During the term hereof, Buyer agrees to buy the product herein
specified in monthly quantities of not less than the minimum set forth below and
Warren agrees to sell said quantities to Buyer. Buyer shall purchase such
quantities as evenly as possible during each month. If during any period of this
agreement the quantity of product Warren is obligated to deliver to Buyer is
prescribed by government rules, regulations or orders, then the quantity of
product covered by this agreement shall be the quantity so prescribed for such
period and Buyer agrees to buy and Warren agrees to sell such quantity.

                        Volume (In Thousands of Gallons)

                 Minimum      Maximum                       Minimum      Maximum

     April         20           30           October          20           30
                 -------      -------                       -------      -------
     May           20           30           November         20           30
                 -------      -------                       -------      -------
     June          20           30           December         20           30
                 -------      -------                       -------      -------
     July          20           30           January          20           30
                 -------      -------                       -------      -------
     August        20           30           February         20           30
                 -------      -------                       -------      -------
     September     20           30           March            20           30
                 -------      -------                       -------      -------

     For the purpose of determining compliance with the above quantity schedule,
purchase of product shall be allocated to the month in which shipment is made.
Should either party fail to comply in any amount with the above schedule, the
other party may elect to terminate this agreement by mailing notice of such
termination on or before the 20th day of the succeeding month. If the Buyer
fails to purchase 100% of the above specified minimum monthly quantities during
any month or months and Warren does not elect to terminate this agreement,
Warren shall not be obligated hereunder to sell to Buyer in any of the
succeeding six months more than one and one half times the average monthly
quantity which Buyer actually purchased during the preceding six-month period.
     When delivery is into tank trucks furnished by Buyer, the delivery ticket
showing the quantity delivered shall be signed by the loader as the agent of
Warren and by the truck driver as the agent of the Buyer; such quantities shall
be conclusively presumed to have been delivered to Buyer.
     On or before the 1st day of each month Buyer shall inform Warren of
quantities required during such month, delivery dates, and when applicable,
destinations of each shipment, Warren shall not be obligated to ship less than a
tank car or tank truck load.

11.  METHOD OF DELIVERY:                   By tank trucks furnished by Buyer.
                              -----------
                                   X       By tank trucks furnished by Warren.
                              -----------
                                           By tank trucks furnished by _________
                              -----------  with a capacity of ____ gallons each.

                                PRICE INFORMATION

                      Prices in effect as of   6/1  , 1993
                                             -------

          Sale based on / / shipping point price or X destination price




     Shipping or                                               Price in
    Pricing Points       Destinations        Product        cents/ gallons      Freight Charges

                                                                    
     Millis, Wy          Nampa, ID        Comm. Propane      *31.00 CENTS        *10.65 CENTS
<FN>
*Price subject to change




Chevron                  Warren Petroleum Company
                         112 J. Street, Suite 300
                         Sacramento, CA 95814
                         916-557-1088
                         FAX 916-557-1093

Marketing Department

                                  July 22, 1993



Mr. Paul Lindsay
Empire Gas Corporation
P.O. Box 303
Lebanon, MO  65536


Dear Paul:

Enclosed please find four (4) copies of an Indemnity Agreement which should be
attached to our Product Sales Agreements 58558 and 58559. After executing the
agreements, please return the pink copies to our office.

Thank you for your prompt attention to this matter.

                         Sincerely,

                         /s/ Leslie C. Shull

                         L.C. Shull
                         Sales Representative
                         Western District D&I Sales

LCS:ec

Enclosures



                               INDEMNITY AGREEMENT


Warren Petroleum Company and Empire Gas Corporation shall each indemnify, and
hold harmless the other, its agents and employees, from and against each and
every claim, demand, or cause of action and any and all liability, costs,
expense (including, but not limited to, reasonable attorney's fees), damage, or
loss in connection therewith which may be made or asserted by that party or any
third parties on account of personal injury, death, or property damage caused
by, arising out of, or in any way incidental to or in connection with that
party's performance under the Contract (whether such performance was complete,
partial, or nonexistent), but only if such injury, death or property damage is
the result of that party's fault or negligence.

Any party hereto having a claim for indemnification against the other party
shall give written notice specifying the nature and amount of such claim as soon
as possible after the claim is asserted, and no such claim shall be waived or
forfeited by either party's failure to give such notice within a certain period
of time unless notice is not given prior to trial or settlement of the claim or
as required by law.



7-15-93


Sales Agreement 58558



/s/ J.L. Gawronski   /s/ Earl Noe
- ------------------  -------------
Warren              Empire Gas
Petroleum
Company