FORELAND CORP
SC 13D/A, 1999-03-29
CRUDE PETROLEUM & NATURAL GAS
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<PAGE>   1
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13D

                   Under the Securities Exchange Act of 1934*
                               (Amendment No. 1)

                                 Foreland Corp.
- --------------------------------------------------------------------------------
                                (Name of Issuer)

                                  Common Stock
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    345458301
- --------------------------------------------------------------------------------
                                 (CUSIP Number)

                               Harvey H. Cody III
                            Petro Source Corporation
                           9801 Westheimer, Suite 900
                              Houston, Texas 77042
                                 (713) 972-2000
- --------------------------------------------------------------------------------
            (Name, Address and Telephone Number of Person Authorized
                     to Receive Notices and Communications)

                               August 11, 1998(1)
- --------------------------------------------------------------------------------
             (Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D, and is filing this
schedule because of Rule 13d-1(b)(3) or (4), check the following box [ ].

Note: Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-7 for other parties
to whom copies are to be sent.

*The remainder of this cover page should be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).


                                  Page 1 of 15
<PAGE>   2

CUSIP No. 345458301

- --------------------------------------------------------------------------------
     (1)  Names of Reporting Persons S.S. or I.R.S. Identification Nos. of Above
          Persons

          Petro Source Corporation
- --------------------------------------------------------------------------------
     (2)  Check the Appropriate Box if a Member of a Group 
                                                                 (a) [ ] 
                                                                 (b) [ ]
- --------------------------------------------------------------------------------
     (3)  SEC Use Only

- --------------------------------------------------------------------------------
     (4)  Source of Funds

          OO (2)
- --------------------------------------------------------------------------------
     (5)  Check if Disclosure of Legal Proceedings is Required Pursuant to Items
          2(d) or 2(e) 
                                                                     [ ]
- --------------------------------------------------------------------------------
     (6)  Citizenship or Place of Organization

          Utah
- --------------------------------------------------------------------------------
Number of         (7)  Sole Voting Power                  863,602(1)
Shares Bene-           ---------------------------------------------------------
ficially          (8)  Shared Voting Power                  -0-
Owned by               ---------------------------------------------------------
Each Report-      (9)  Sole Dispositive Power             863,602(1)
ing Person             ---------------------------------------------------------
With              (10) Shared Dispositive Power             -0-
- --------------------------------------------------------------------------------
     (11) Aggregate Amount Beneficially Owned by Each Reporting Person

                       863,602 (1)
- --------------------------------------------------------------------------------
     (12) Check if the Aggregate Amount in Row (11) Excludes Certain Shares 
                                                                     [ ]
- --------------------------------------------------------------------------------
     (13) Percent of Class Represented by Amount in Row (11) 
                       9.16%
- --------------------------------------------------------------------------------
     (14) Type of Reporting Person (See Instructions)  CO


                                  Page 2 of 15
<PAGE>   3

CUSIP No. 345458301

- --------------------------------------------------------------------------------
     (1)  Names of Reporting Persons S.S. or I.R.S. Identification Nos. of Above
          Persons

          Petro Source Investments, Inc.
- --------------------------------------------------------------------------------
     (2)  Check the Appropriate Box if a Member of a Group 
                                                                 (a) [ ] 
                                                                 (b) [ ]
- --------------------------------------------------------------------------------
     (3)  SEC Use Only

- --------------------------------------------------------------------------------
     (4)  Source of Funds

          OO(2)
- --------------------------------------------------------------------------------
     (5)  Check if Disclosure of Legal Proceedings is Required Pursuant to
          Items 2(d) or 2(e)
                                                                     [ ]
- --------------------------------------------------------------------------------
     (6)  Citizenship or Place of Organization

          Texas
- --------------------------------------------------------------------------------
Number of         (7)  Sole Voting Power                    -0-
Shares Bene-           ---------------------------------------------------------
ficially          (8)  Shared Voting Power                863,602(1)
Owned by               ---------------------------------------------------------
Each Report-      (9)  Sole Dispositive Power               -0-
ing Person             ---------------------------------------------------------
With              (10) Shared Dispositive Power           863,602(1)
- --------------------------------------------------------------------------------
     (11) Aggregate Amount Beneficially Owned by Each Reporting Person

                       863,602 (1)
- --------------------------------------------------------------------------------
     (12) Check if the Aggregate Amount in Row (11) Excludes Certain Shares 
                                                                     [ ]
- --------------------------------------------------------------------------------
     (13) Percent of Class Represented by Amount in Row (11) 
                       9.16%
- --------------------------------------------------------------------------------
     (14) Type of Reporting Person (See Instructions)  CO


                                  Page 3 of 15
<PAGE>   4

CUSIP No. 345458301

- --------------------------------------------------------------------------------
     (1)  Names of Reporting Persons S.S. or I.R.S. Identification Nos. of Above
          Persons

          A. Howard McCollum
- --------------------------------------------------------------------------------
     (2)  Check the Appropriate Box if a Member of a Group 
                                                                 (a) [ ]
                                                                 (b) [ ]
- --------------------------------------------------------------------------------
     (3)  SEC Use Only

- --------------------------------------------------------------------------------
     (4)  Source of Funds

          OO (2)
- --------------------------------------------------------------------------------
     (5)  Check if Disclosure of Legal Proceedings is Required Pursuant to 
          Items 2(d) or 2(e)
                                                                     [ ]
- --------------------------------------------------------------------------------
     (6)  Citizenship or Place of Organization

          Texas
- --------------------------------------------------------------------------------
Number of         (7)  Sole Voting Power                    -0-
Shares Bene-           ---------------------------------------------------------
ficially          (8)  Shared Voting Power                863,602(1)(3)
Owned by               ---------------------------------------------------------
Each Report-      (9)  Sole Dispositive Power               -0-
ing Person             ---------------------------------------------------------
With              (10) Shared Dispositive Power           863,602(1)(3)
- --------------------------------------------------------------------------------
     (11) Aggregate Amount Beneficially Owned by Each Reporting Person

                       863,602 (1) (3)
- --------------------------------------------------------------------------------
     (12) Check if the Aggregate Amount in Row (11) Excludes Certain Shares
                                                                     [ ]
- --------------------------------------------------------------------------------
     (13) Percent of Class Represented by Amount in Row (11)
                       9.16%
- --------------------------------------------------------------------------------
     (14) Type of Reporting Person (See Instructions)  IN


                                  Page 4 of 15
<PAGE>   5

CUSIP No. 345458301

- --------------------------------------------------------------------------------
     (1)  Names of Reporting Persons S.S. or I.R.S. Identification Nos. of Above
          Persons

          Harvey H. Cody III
- --------------------------------------------------------------------------------
     (2)  Check the Appropriate Box if a Member of a Group
                                                                 (a) [ ]
                                                                 (b) [ ]
- --------------------------------------------------------------------------------
     (3)  SEC Use Only

- --------------------------------------------------------------------------------
     (4)  Source of Funds

          OO (2)
- --------------------------------------------------------------------------------
     (5)  Check if Disclosure of Legal Proceedings is Required Pursuant to 
          Items 2(d) or 2(e)
                                                                     [ ]
- --------------------------------------------------------------------------------
     (6)  Citizenship or Place of Organization

          Texas
- --------------------------------------------------------------------------------
Number of         (7)      Sole Voting Power                -0-
Shares Bene-      --------------------------------------------------------------
ficially          (8)      Shared Voting Power            863,602(1)(3)
Owned by          --------------------------------------------------------------
Each Report-      (9)      Sole Dispositive Power           -0-
ing Person        --------------------------------------------------------------
With              (10)     Shared Dispositive Power       863,602(1)(3)
- --------------------------------------------------------------------------------
         (11) Aggregate Amount Beneficially Owned by Each Reporting Person

                           863,602(1)(3)
- --------------------------------------------------------------------------------
         (12) Check if the Aggregate Amount in Row (11) Excludes Certain Shares
                                                                     [ ]
- --------------------------------------------------------------------------------
         (13) Percent of Class Represented by Amount in Row (11) 
              9.16%
- --------------------------------------------------------------------------------
         (14) Type of Reporting Person (See Instructions)  IN


                                  Page 5 of 15
<PAGE>   6
        This Amendment No. 1 to Schedule 13D amends the initial statement on 
Schedule 13D filed on March 9, 1999 (the "Initial Statement"). This Amendment 
No. 1 contains the entire text of the Initial Statement. The only change 
reflected in this Amendment No. 1 is the addition of signatures to page 11 and 
Exhibit A, the Joint Filing Agreement.  

ITEM 1. SECURITY AND ISSUER

        The class of securities to which this statement relates is common stock,
par value $.01 per share ("Common Stock"), of Foreland Corporation, a Nevada
corporation (the "Company"). The address of the principal executive offices of
the Company is 12596 West Bayund, Suite 300, Lakewood, Colorado 80228-2019.

ITEM 2. IDENTITY AND BACKGROUND

        This statement on Schedule 13D is a joint filing made by Petro Source
Corporation, a Utah corporation ("PSC"), Petro Source Investments, Inc., a Texas
corporation ("PSI"), A. Howard McCollum and Harvey H. Cody III pursuant to a
Joint Filing Agreement, a copy of which is attached hereto as Exhibit A. PSC is
a wholly owned subsidiary of PSI. The principal business of PSC is hydrocarbon
and CO2 transportation and marketing and project development. The principal
business of PSI os owning stock of PSC. Information with respect to the
executive officers, directors and controlling persons of PSC and PSI, including
name, business address, present principal occupation or employment and the
organization in which such employment is conducted, and their citizenship is
listed on the schedule attached hereto as Schedule I, which is incorporated in
this Schedule 13D by reference. The address of the principal business and office
for both PSC and PSI is 9801 Westheimer, Suite 900, Houston, Texas 77042. A.
Howard McCollum and Harvey H. Cody III are each a director, officer, and
shareholder of PSI. The name, business address, present principal occupation or
employment and the organization in which such employment is conducted, and
citizenship for Messrs. McCollum and Cody is also included on Schedule I
attached hereto.

        During the last five years, none of PSC, PSI, Mr. McCollum or Mr. Cody
(collectively, the "Reporting Persons"), nor, to the best of PSC's and PSI's
knowledge, any other executive officer, director or controlling person of PSC or
PSI, has been convicted in any criminal proceeding (excluding traffic violations
or similar misdemeanors) or has been a party to a civil proceeding of a judicial
or administrative body of competent jurisdiction and as a result of such
proceeding was or is subject to a judgment, decree or final order enjoining
future violations of, or prohibiting or mandating activities subject to, federal
or state securities laws or finding any violation with respect to such laws.

ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION

        The Reporting Persons did not use any of their own funds in the
acquisition of the Company common stock. The shares were transferred to PSC by
the Company as partial consideration for the sale of substantially all of the
assets of a wholly owned subsidiary of PSC to the Company. PSI, Mr. McCollum and
Mr. Cody are filing this statement as a result of their indirect beneficial
ownership in the Company common stock through PSI's ownership of PSC, and Mr.
McCollum's and Mr. Cody's respective ownership interests in PSI.


                                  Page 6 of 15
<PAGE>   7

ITEM 4. PURPOSE OF TRANSACTION

        PSC acquired all of the shares it owns of Company common stock as
partial consideration from the Company for the sale of certain PSC assets. PSC's
intent with respect to the common stock is to sell such shares and realize the
cash value of the assets sold in such transaction.

        On December 31, 1997, PSC and the Company entered into an Option and
Purchase Agreement , a copy of which is attached hereto as Exhibit B (the
"Agreement"), respecting (a) the Company's option to purchase and (b) the
Company's purchase from PSC, of the following assets: (i) the Eagle Springs
Refinery located in Tonopah, Nevada; (ii) substantially all of PSC's assets
related to the operations of the Eagle Springs Refinery; (iii) PSC's common
carrier trucking operation conducted under the name Petrosource Transportation;
and (iv) a roofing asphalt blower and associated equipment located at Fredonia,
Arizona (collectively, the "PSC Assets"). Pursuant to the Agreement, the Company
granted to PSC 130,000 unregistered shares of Company common stock as
consideration for the option to purchase the PSC Assets (the "Purchase Option
Shares"). As of December 31, 1997, PSC held 130,000 shares of Company common
stock--approximately 1.53% of the total outstanding shares of Company common
stock as of that date.

        In accordance with the provisions of the Agreement, the Company filed a
registration statement on Form S-3 (SEC file no. 333-49471) on April 6, 1998, to
register the sale of the Purchase Option Shares by PSC under the Securities Act
of 1933. During April-July, PSC sold 54,650 of the Purchase Option Shares in
open market transactions. Thereupon, PSC owned 75,350 shares Company common
stock--approximately 0.88% of the total outstanding shares of Company common
stock.

        On August 11, 1998, PSC and the Company entered into an Amendment to the
Agreement, a copy of which is attached hereto as Exhibit C (the "Agreement
Amendment"). Pursuant to the Agreement Amendment, the Company exercised its
option to purchase the PSC Assets and granted to PSC an additional 863,602
unregistered shares of Company common stock as part of the purchase price for
the PSC Assets (the "Closing Shares"). As of August 11, 1998, PSC held a total
of 938,952 shares of Company common stock--approximately 9.98% of the total
outstanding shares of Company common stock. This transaction was duly reported
by the Company in a Current Report on Form 8-K filed on August 12, 1998.

        On January 29, 1999, PSC sold the 75,350 remaining Purchase Option
Shares in an open market transaction. PSC owns 863,602 shares of Company common
stock, consisting solely of the Closing Shares--approximately 9.16% of the total
currently outstanding shares of Company common stock as of March 1, 1999. In
accordance with the provisions of the Agreement Amendment, the Company filed a
registration statement on Form S-3 (SEC file no. 333-69373) on December 21,
1998, to register the offer and sale of the Closing Shares by PSC under the
Securities Act of 1933. PSC expects to sell the Closing Shares in open market
transactions once the registration statement becomes effective.


                                  Page 7 of 15
<PAGE>   8

        Upon the sale of all of the Closing Shares, PSC could be entitled to
acquire additional shares of Company common stock. Pursuant to the Agreement
Amendment, if the net proceeds from the sale of all of the Closing Shares is
less than $2,676,332 plus interest at 10% per annum through December 31, 1998
and 15% per annum thereafter (the number of shares issued to PSC was based on
the approximate trading price of the Company common stock of $3.50 per share)
(the "Realizable Amount"), then, upon demand by PSC, the Company must either (i)
pay the Deficiency (as defined below) in cash or (ii) deliver to PSC such
additional shares of Company common stock as the Company estimates will yield
net proceeds equal to meet the Deficiency (the "Additional Shares"). If the
Additional Shares prove to be insufficient for PSC to realize in cash the
Realizable Amount, PSC may demand that the Company pay the remaining
uncompensated Deficiency in cash. For purposes of this Schedule 13D, the term
"Deficiency" means the difference between the Realizable Amount and the
aggregate amount received by PSC for the sale of all of the Closing Shares.

        The closing price per share of the Company common stock as of March 1,
1999 was $0.8438. If PSC were to sell all the Closing Shares at that price, it
would receive gross proceeds of approximately $728,712. Upon demand, PSC would
then be entitled, at the option of the Company, to receive either (i) a cash
payment in the amount of at least approximately $1,947,620 or (ii) a grant of at
least approximately 2,308,150 Additional Shares of Company common stock--which
would equal approximately 19.68% of the total outstanding shares of Company
common stock after the grant. There can be no assurance that PSC can sell the
Closing Shares at the March 1, 1999 price. Indeed, given the high volatility of
the Company common stock price on the Nasdaq SmallCap market, the low trading
volume of the stock and recent developments affecting the Company's industry, it
is likely that any sale by PSC of a significant amount of the Closing Shares
would produce downward price pressure and thus reduce the amount received, which
could entitle PSC to receive even a greater number of Additional Shares.

        The principal objective of PSC with respect to its holding of Company
common stock is to receive cash in the Realizable Amount. The Board of Directors
and management of PSC do not desire to hold any significant equity stake in the
Company and do not currently intend to effect any kind of takeover or change in
control of the Company.

ITEM 5. INTEREST IN SECURITIES OF THE ISSUER

        As of March 1, 1999, none of the directors or officers of PSC
individually or as a group held any shares of Company common stock. All of the
transactions in the Company common stock effected by PSC in the past 60 days are
set forth on Schedule II hereto.

ITEM 6. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO
        SECURITIES OF THE ISSUER

        There are no arrangements among PSC, PSI, or any of their directors and
officers respecting the shares of Company common stock owned by PSC.


                                  Page 8 of 15
<PAGE>   9

ITEM 7. MATERIAL TO BE FILED AS EXHIBITS.

        Exhibit A -- Joint Filing Agreement, dated as of March 5, 1999, by and
                     among PSC, PSI, Mr. McCollum and Mr. Harvey.

        Exhibit B -- Option and Purchase Agreement dated December 31, 1997
                     between Petro Source Corporation and Foreland Corporation.

        Exhibit C -- Amendment to Option and Purchase Agreement dated August 11,
                     1998 between Petro Source Corporation and Foreland 
                     Corporation.


                                  Page 9 of 15
<PAGE>   10

                                EXPLANATORY NOTES

(1) As of August 11, 1998, the Reporting Persons (defined herein) owned 938,952
shares of Foreland Corporation (the "Company") common stock. As of March 1,
1999, PSC owned 863,602 shares of Company common stock. The ownership history of
the Reporting Persons (defined herein) with respect to Company common stock is
more fully described under Item 4 "Purpose of Transaction."

(2) The Company common stock was obtained by PSC as partial consideration for an
asset sale. See Item 4, "Purpose of Transaction."

(3) Mr. McCollum and Mr. Cody disclaim beneficial ownership of the shares
reported in this statement.


                                 Page 10 of 15
<PAGE>   11

     After reasonable inquiry and to the best of its or his current knowledge
and belief, each of the undersigned certifies that the information set forth in
this statement is true, complete and correct.

Date:  March 5, 1999

                                          PETRO SOURCE CORPORATION


                                          By: /s/ A. HOWARD MCCOLLUM
                                             -----------------------------------
                                             A. Howard McCollum
                                             President


                                          PETRO SOURCE INVESTMENTS, INC.


                                          By: /s/ A. HOWARD MCCOLLUM
                                             -----------------------------------
                                             A. Howard McCollum
                                             President

                                             /s/ A. HOWARD MCCOLLUM
                                             -----------------------------------
                                             A. Howard McCollum

                                             /s/ HARVEY H. CODY III
                                             -----------------------------------
                                             Harvey H. Cody III


                                 Page 11 of 15
<PAGE>   12

                                                                      SCHEDULE I

                  DIRECTORS, EXECUTIVE OFFICERS AND CONTROLLING
         SHAREHOLDERS OF PETRO SOURCE CORPORATION AND PETRO SOURCE, INC.

     The following table sets forth the name and principal occupation or
employment and the organization in which such employment is conducted for each
director, executive officer and controlling shareholder of Petro Source
Corporation ("PSC") and Petro Source Investments, Inc. ("PSI"). Each such person
is a citizen of the United States of America and the business address of each
such person is c/o Petro Source Corporation, 9801 Westheimer, Suite 900,
Houston, Texas 77042.


<TABLE>
<CAPTION>
           Name                               Position with PSC                      Position with PSI
           ----                               -----------------                      -----------------

<S>                                      <C>                                   <C>
Petro Source Investments, Inc.           Sole Shareholder                                    --

A. Howard McCollum                       Director and President                Director, President, and 28%
                                                                               Shareholder

Harvey H. Cody III                       Director, Vice President and          Director, Vice President,
                                         Secretary                             Secretary, and 24% Shareholder

William L. Townsend                      Vice President                        Vice President and 5% Shareholder

James J. Burke III                       Director and Vice President           Director, Vice President and 8%
                                                                               Shareholder
</TABLE>


                                 Page 12 of 15
<PAGE>   13

                                                                     SCHEDULE II


                   TRANSACTIONS IN THE COMPANY'S COMMON STOCK
                           DURING THE PAST SIXTY DAYS


January 25, 1999 -- Pursuant to an effective registration statement (SEC file
                    no. 333-49471), Petro Source Corporation sold 75,350 shares
                    at $0.8923 per share of Company common stock in an open
                    market transaction.


                                 Page 13 of 15
<PAGE>   14

                                  EXHIBIT INDEX

<TABLE>
        <S>          <C>
        Exhibit A -- Joint Filing Agreement, dated as of March 5, 1999, by and
                     among PSC, PSI, Mr. McCollum and Mr. Harvey.

        Exhibit B -- Option and Purchase Agreement dated December 31, 1997
                     between Petro Source Corporation and Foreland Corporation.

        Exhibit C -- Amendment to Option and Purchase Agreement dated August 11,
                     1998 between Petro Source Corporation and Foreland 
                     Corporation.
</TABLE>

                                 Page 14 of 15

<PAGE>   1

                                                                       EXHIBIT A


                             JOINT FILING AGREEMENT


     In accordance with Rule 13d-1(k)(1) of the Securities Exchange Act of 1934,
as amended, the undersigned agree to the joint filing on behalf of each of them
a Statement on Schedule 13D (including any and all amendments thereto) with
respect to the Common Stock of Foreland Corp. and further agree that this
Agreement shall be included as an Exhibit to such joint filings.

     The undersigned further agree that each party hereto is responsible for
timely filing of such Statement on Schedule 13D and any amendments thereto, and
for the completeness and accuracy of the information concerning such party
contained therein; provided that no party is responsible for the completeness or
accuracy of the information concerning the other party, unless such party knows
or has reason to believe that such information is inaccurate.

     This Agreement may be executed in one or more counterparts, each of which
shall be deemed to be an original instrument, but all of such counterparts
together shall constitute but one agreement.

     In evidence thereof the undersigned, being duly authorized, hereby execute
this Agreement this 5th day of March, 1999.

                                            PETRO SOURCE CORPORATION


                                            By: /s/ A. HOWARD McCOLLUM
                                               ---------------------------------
                                               A. Howard McCollum
                                               President

                                            PETRO SOURCE INVESTMENTS, INC.


                                            By: /s/ A. HOWARD McCOLLUM
                                               ---------------------------------
                                               A. Howard McCollum
                                               President

                                               /s/ A. HOWARD McCOLLUM
                                               ---------------------------------
                                               A. Howard McCollum

                                               /s/ HARVEY H. CODY III
                                               ---------------------------------
                                               Harvey H. Cody III

                                 Page 15 of 15

<PAGE>   1


                                                                       EXHIBIT B

                               OPTION AND PURCHASE
                                    AGREEMENT


         THIS OPTION AND PURCHASE AGREEMENT (hereinafter referred to as this
"Agreement") is entered into effective as of the 31st day of December, 1997, by
and between FORELAND CORPORATION, a Nevada corporation (hereinafter "Foreland")
on the one hand, and PETRO SOURCE CORPORATION, a Utah corporation, and PETRO
SOURCE REFINING CORPORATION, a Utah corporation, and PETROSOURCE TRANSPORTATION,
a Utah corporation, on the other (collectively, "PSC"), based on the following:

                                    PREMISES

         A. Among other things, PSC is engaged in the business of refining,
processing, and transporting crude and refined hydrocarbons and associated
products and desires to grant an option for the sale of and, if exercised, to
sell, as a going concern, substantially all of its assets and operations
associated with a crude oil refinery/asphalt manufacturing plant located in
Nevada, known as the Eagle Springs Refinery; a crude oil and/or transmix
refinery facility producing primarily diesel fuel, residual fuel oil, and/or
gasoline located in Tonopah, Nevada; a common carrier trucking operation
conducted under the name "Petrosource Transportation," consisting of truck
tractors and specialized combination trailers for hauling crude oil and refinery
products; and a roofing asphalt blower and associated equipment currently
located at Fredonia, Arizona, all as more particularly described in this
Agreement.

         B. Foreland desires to obtain an option to purchase and, if it elects
to exercise such option, to acquire through a wholly owned subsidiary to be
organized for such purpose, Foreland Refining Corporation, the assets of PSC
described above for the agreed consideration and on the terms and conditions set
forth in this Agreement, and to continue to operate the businesses acquired.

                                    AGREEMENT

         NOW, THEREFORE, based on the stated premises, which are incorporated
herein by reference, and for and in consideration of the mutual covenants and
agreements hereinafter set forth and the mutual benefit to the parties to be
derived herefrom, it is hereby agreed as follows:

                                    ARTICLE I
                                   DEFINITIONS

         In this Agreement, the following terms have the meanings specified or
referred to in this Article I. Such definitions shall be equally applicable to
both the singular and plural forms. Any agreement referred to below shall mean
such agreement as amended, supplemented and modified from time to time to the
extent permitted by the applicable provisions thereof and by this Agreement.

         "Assumed Obligations" means the obligations under the contracts,
         leases, and agreements which are assumed by Foreland, all as more
         particularly described in Section 3.03.

         "Business" means the business, operations, and the Business Assets and
         Assumed Obligations, including the tangible and intangible real and
         personal property owned or leased by PSC and used in connection with
         the Business Assets, excluding, however, the Excluded Assets, all as
         more particularly described in Section 3.01.



<PAGE>   2

         "Business Assets" means the tangible and intangible real and personal
         assets of the Business as more particularly described in Section 3.01.

         "Business Executive" means management and executive level salaried
         employees of PSC engaged for all or substantially all of their working
         time in the management and operation of the Business.

         "Closing" has the meaning set forth in Section 3.07.

         "Closing Date" has the meaning set forth in Section 3.07.

         "Closing Exhibits" means the updated PSC Exhibits delivered by PSC at
         or prior to the Closing.

         "Closing Schedules" means the updated PSC Schedules delivered by PSC at
         or prior to the Closing.

         "Due Diligence Period" means the 30 days after the date of delivery of
         the PSC Exhibits and PSC Schedules during which Foreland may inspect
         such PSC Exhibits and PSC Schedules.

         "EBITDA" means earnings before interest, taxes, depreciation, and
         amortization, as determined in accordance with GAAP, applied
         consistently with the financial statements of the Business included in
         the PSC Schedules, all as determined in accordance with the calculation
         methodology contained in Appendix "A," initialed by the parties for
         identification, attached hereto, and incorporated herein by reference.

         "Effective Time" has the meaning set forth in Section 3.08.

         "Environmental Laws" means the federal, state, and local laws and
         regulations governing the generation, marketing, refining, recycling,
         treatment, handling, use, storage, transportation, disposal, and
         cleanup of hazardous, radioactive, reactive, flammable, infectious,
         toxic, or dangerous materials or the protection of public health or the
         environment including, without limitation, the Comprehensive
         Environmental Response, Compensation, and Liability Act of 1980; the
         Resource Conservation and Recovery Act of 1976; the Toxic Substances
         Control Act; the Clean Air Act, the Federal Water Pollution Control
         Act; the Safe Drinking Water Act; the Hazardous Material Transportation
         Act; the Federal Insecticide, Fungicide, Rodentcide Act; the
         Occupational Safety and Health Act; and any similar state or local law,
         regulation, or ordinance and all permits and regulatory approvals
         issued thereunder.

         "ES Production" means Eagle Springs Production Limited Liability
         Company, a Nevada limited liability company and a wholly owned
         subsidiary of Foreland.

         "Exchange Act" means the Securities Exchange Act of 1934, as amended,
         and the regulations promulgated thereunder.

         "Exercise Date" means the date of exercise of the Option granted
         pursuant to this Agreement as set forth in Section 2.04.

         "Exercise Period" has the meaning set forth in Section 2.03.

                                      -2-

<PAGE>   3

         "Exercise Period Quarter" means the successive calendar quarters ending
         on March 15, June 15, September 15, and December 15, 1998.

         "Foreland Stock" means shares of common stock of Foreland, par value
         $0.001 per share.

         "GAAP" means generally accepted accounting principles, consistently
         applied.

         "Option Consideration" has the meaning set forth in Section 2.02.

         "Option Period" means the period starting with the date of this
         Agreement and ending at 11:59 p.m., Mountain Time, December 31, 1998,
         or at the end of any Exercise Period Quarter with respect to which
         Foreland has not fulfilled its obligations as set forth in Article II.

         "Option Shares" has the meaning set forth in Section 2.02.

         "PSC Exhibits" means the documents describing in detail the items more
         particularly described in Article III.

         "PSC Schedules" means the disclosures as set forth in Section 2.07.

         "Purchase Price" has the meaning set forth in Section 3.05.

         "Refining" means Foreland Refining Corporation, a corporation to be
         organized by, and as a subsidiary of, Foreland for the purpose of
         purchasing the Business and Business Assets.

         "Registration Statement" means a registration statement filed under the
         provisions of the Securities Act as provided in Section 2.02.

         "SEC" means the Securities and Exchange Commission.

         "Securities Act" means the Securities Act of 1933, as amended, and the
         regulations promulgated thereunder.

         "Shares" means either or both the Option Shares or Purchase Shares, as
         the case may be.

                                   ARTICLE II
                               OPTION TO PURCHASE

         Section 2.01   Grant of Option. For and in consideration of the Crude
Oil Purchase Agreement entered into this date by and between PSC and Foreland,
the Option Consideration as set forth in Section 2.02, and the benefits to the
parties arising under this Agreement, PSC hereby grants to Foreland the
irrevocable right and option (the "Option"), exercisable at any time during the
Exercise Period set forth in Section 2.03 to purchase the Business and Business
Assets for the Purchase Price set forth in Section 3.05.

         Section 2.02   Option Consideration. In consideration of this Option
granted by PSC pursuant to this Agreement, Foreland agrees to pay to PSC an
aggregate of $520,000 (the "Option Consideration") as follows:

                                      -3-

<PAGE>   4

                  (a) On or before January 15, 1998, Foreland shall deliver to
         Petro Source Refining Corporation ("PSRC"), an aggregate of 130,000
         shares (the "Option Shares") of Foreland Stock, which shall be
         registered in the name of PSRC, but held and disposed of in accordance
         with the terms and conditions hereof.

                  (b) At the earliest practicable date, Foreland shall file, 

         at its sole cost, and utilize its best efforts to obtain the
         effectiveness of, by acceleration, a registration on such form as
         Foreland may select under the Securities Act covering the resale of the
         Option Shares by and for the account of PSRC, which shall be named as a
         selling shareholder in such registration statement, all as more
         particularly set forth in Article IX hereof. Foreland shall utilize its
         best efforts to obtain the effectiveness of such Registration Statement
         at the earliest practicable date and to maintain its effectiveness
         throughout the Exercise Period.

                   (c) On or before the expiration of each Exercise Period
         Quarter, Foreland may pay the $130,000 Option Consideration installment
         for such quarter in immediately available funds by wire transfer to PSC
         at the following account:

                          Bank of America NT&SA, Concord, CA
                          ABA no. 121000358
                          Petro Source Refining Corporation Account
                          Account no. 12331-15325  Reference Co. 80

                  (d) If Foreland elects not to pay the $130,000 in cash in
         accordance with the requirements of paragraph (c) above on or before
         the end of any Exercise Period Quarter, and the Registration Statement
         is then effective, PSC may cause to be sold, at any time and from
         time-to-time and in accordance with the Registration Statement, that
         number of Option Shares that yields proceeds, net of brokerage and
         other usual and customary transaction costs, the amount of $130,000 as
         payment in full of the Option Consideration installment for such
         Exercise Period Quarter.

                  (e) If (i) the Registration Statement is not effective on or
         before the date on which PSC would be able to cause Option Shares to be
         sold thereunder but for its lack of effectiveness, or (ii) insufficient
         Option Shares are held by PSRC such that the net proceeds therefrom
         would not equal $130,000, PSRC may demand that Foreland pay in cash the
         $130,000 Option Consideration installment for that quarter, in which
         case Foreland shall pay such amount in cash in immediately available
         funds within five days after such demand, and the Option Shares
         attributable to such quarter shall be returned to Foreland.

                  (f) If at the end of the Option Period any Option Shares 
         remain unsold, such shares shall be returned to Foreland for
         cancellation. If Option Shares have been sold for net proceeds in
         excess of the Option Consideration due to PSC under the terms of this
         Agreement, such excess proceeds shall also be delivered to Foreland.

         Section 2.03   Exercise Period. The Option may be exercised at any time
on or before December 31, 1998, provided that as of the date of exercise all
Option Consideration required to have been paid as of such date in accordance
with the requirements of Section 2.02 have been paid in full.

         Section 2.04   Manner of Exercise. The Option shall be exercised by
notice thereof from Foreland to PSC in the manner for giving notices as
hereinafter provided. The Exercise Date shall be the date such notice shall be
deemed to be given in accordance with Section 13.02.

         Section 2.05   Effect of Exercise. On the timely exercise of the Option
by Foreland, this Agreement shall become a binding, bilateral agreement between
PSC and Foreland or, at Foreland's election, Refining, for the sale and 
purchase of the Business and Business Assets on the terms and conditions 
hereinafter set forth.

                                      -4-

<PAGE>   5


         Section 2.06.  Access and Information; Noncompetition.  During the
Option Period:

                  (a) PSC shall (i) afford Foreland and its respective officers,
         directors, partners, managers, members, employees, accountants,
         consultants, legal counsel, agents, and other representatives
         (collectively, the "Foreland Representatives") reasonable access at
         reasonable times, upon reasonable prior notice, to the Business and
         Business Assets and the officers, directors, employees, agents, offices
         and facilities of PSC and to the books and records relating to such
         Business and Business Assets; and (ii) furnish promptly to Foreland and
         the Foreland Representatives such information concerning the business,
         properties, contracts, records, and personnel of the Business and
         Business Assets and PSC insofar as related to the Business and Business
         Assets (including financial, operating and other data and information)
         as may be reasonably requested, from time to time, by any Foreland or
         such Foreland Representatives.

                  (b) PSC grants to Foreland and the Foreland Representatives a
         non-exclusive license to enter into and upon the Real Property (as
         defined below) for the purpose of completing an environmental site
         assessment, all as more particularly set forth in Section 4.07(d).

                  (c) Notwithstanding the foregoing provisions of this Section
         2.06, PSC shall not be required to grant access or furnish information
         to Foreland or the Foreland Representatives to the extent that such
         access to or the furnishing of such information is prohibited by law or
         a valid order by a court of competent jurisdiction. No investigation by
         Foreland hereto made heretofore or hereafter shall affect the
         representations and warranties of PSC which are herein contained, and
         each such representation and warranty shall survive such investigation.

                  (d) The information received pursuant to this section shall be
         deemed to be "Confidential Information." Foreland agrees that it will
         treat in confidence all documents, materials and other Confidential
         Information which it shall have obtained regarding the Business,
         Business Assets, or PSC during the course of the negotiations leading
         to the consummation of the transactions contemplated hereby (whether
         obtained before or after the date of this Agreement), the investigation
         provided for herein, and the preparation of this Agreement and other
         related documents. Such documents, materials and other Confidential
         Information shall not be communicated to any third person (other than
         to counsel, accountants, financial advisors or lenders who have agreed
         to treat the information as Confidential Information) and shall not be
         used for any purpose to the detriment of PSC. Foreland shall not use
         any Confidential Information in any manner whatsoever except solely for
         the purpose of evaluating the possible business relationship with PSC.
         Neither Foreland nor any Foreland Representative will, during the term
         of this Agreement or at any time during the two years thereafter,
         irrespective of the time, manner, or cause of termination of this
         Agreement, use, disclose, copy, or assist any other person or firm in
         the use, disclosure, or copying of any documents, materials or other
         Confidential Information of PSC. This provision is not intended to
         supercede the Confidentiality Agreement between PSC and Foreland dated
         August 25, 1997, and, in addition to the convenants hereof, information
         received pursuant to this section shall be deemed to be "Confidential
         Information" under that agreement.

                                      -5-

<PAGE>   6


         Section 2.07   PSC Schedules and Exhibits.

                  (a) On or before January 15, 1998, PSC shall prepare and
         deliver to Foreland a revised set of exhibits and schedules updating
         the exhibits provided under the terms of Article III (the "PSC
         Exhibits") and the schedules limiting the representations of PSC set
         forth in Article IV or otherwise required by the terms of this
         Agreement (the "PSC Schedules").

                  (b) Foreland shall have until 30 days after the date of
         delivery of the revised PSC Exhibits and PSC Schedules (the "Due
         Diligence Period") in which to inspect such PSC Exhibits and PSC
         Schedules. If, within the Due Diligence Period, Foreland reasonably
         determines and advises PSC in writing of respects in which the revised
         PSC Exhibits or PSC Schedules are materially and adversely different
         from the PSC Exhibits and Schedules attached hereto ("Objections"), PSC
         shall have the right to attempt to cure all valid Objections within 30
         days after the expiration of such Due Diligence Period; Foreland shall
         have no obligation to cure such Objections. If PSC does undertake to
         cure such Objections, such curative measures shall be set forth in
         writing and shall be specifically enforceable by Foreland. If valid
         Objections are not reasonably resolved within such 30 day cure period,
         Foreland may void this Agreement by written notice thereof to PSC
         within seven days after expiration of such cure period. If this
         Agreement is voided, (i) all amounts previously paid or delivered by
         the parties under the terms of this Agreement shall be returned within
         ten days; and (ii) the Purchase Contract Confirmation of even date
         herewith shall be null and void and the existing crude oil purchase
         agreement shall be reinstated effective as of December 15, 1997, and
         any overpayments shall be paid within ten days. If Foreland does not so
         void this Agreement, it shall be deemed to have accepted such revised
         PSC Exhibits and PSC Schedules. If, at the end of the Due Diligence
         Period, Foreland has not delivered written objection to the revised PSC
         Exhibits or PSC Schedules pursuant to this subsection, Foreland will be
         deemed to have accepted the revised PSC Exhibits and PSC Schedules as
         submitted by PSC. The revised PSC Exhibits and PSC Schedules accepted
         or deemed to have been accepted by Foreland shall be attached to and
         become part of this Agreement and shall be the effective PSC Exhibits
         and Schedules under the provisions of Article IV and other relevant
         sections of this Agreement.

         Section 2.08   Affirmative Covenants of PSC. PSC hereby covenants and
agrees that during the Option Period and, if this Option is timely exercised,
then until the Effective Time, unless otherwise expressly contemplated by this
Agreement or consented to in writing by Foreland, PSC will, insofar as it
relates to the Business or Business Assets:

                  (a) continue to operate the Business in the ordinary course
         consistent with past practices, subject to such changes in operations
         as are necessary or advisable, and consistent with prudent business
         practices;

                  (b) use all reasonable efforts to preserve substantially
         intact its business organization, maintain its material rights,
         permits, and franchises, retain the services of its executives, senior
         managers, and employees, and maintain its relationships with its
         material customers and suppliers to the extent that a prudent business 
         person would do so;

                  (c) maintain and keep its material properties and the Business
         Assets in as good repair and working condition as at present, ordinary
         wear and tear excepted, and maintain supplies and inventories of
         products based on its customary business practice;

                                      -6-

<PAGE>   7


                  (d) continue to operate the Business and Business Assets in
         compliance with all laws and regulations applicable thereto, including
         all Environmental Laws;

                  (e) pay all obligations, taxes, and liens with respect to the
         Business and Business Assets as they come due;

                  (f) keep adequate records and books of account with complete
         entries sufficient for the preparation and auditing of financial
         statements in accordance with the requirements of GAAP;

                  (g) timely pay its accounts payable associated with the
         Business and Business Assets in the ordinary course, consistent with
         prior practices;

                  (h) use reasonable efforts to timely collect its accounts
         receivable in the ordinary course, consistent with past practices; and

                  (i) use all reasonable efforts to keep in full force and
         effect insurance and bonds comparable in amount and scope of coverage
         to that currently maintained.

         Section 2.09   Negative Covenants of PSC. Except as expressly
contemplated by this Agreement or as otherwise consented to in writing by
Foreland (which consent will not be unreasonably withheld), during the Option
Period and, if the Option is timely exercised, then until the Effective Time,
PSC will not:

                  (a) sell, lease, exchange, mortgage, pledge, transfer or
         otherwise dispose of, or encumber, or agree to do any of the foregoing
         with respect to the Business or Business Assets, except for the sale of
         inventory or similar dispositions in the ordinary course, consistent
         with prior practice;

                  (b) knowingly take, or agree to commit to take, any action
         that would make any representation or warranty of PSC contained herein
         or in the PSC Disclosure Schedules inaccurate in any material respect
         at the Closing Date, or as of any time during the Option Period and, if
         the Option is timely exercised, then until the Effective Time;

                  (c) except in the ordinary course of business, enter into any
         agreement or arrangement to extend the time covered by an agreement to
         purchase crude oil, hydrocarbons, or other feedstock or supplies for
         the Business and Business Assets, which agreement has a term in excess
         of one year, or to increase the price paid to a supplier of such items;

                  (d) enter into any agreement or arrangement that is not
         cancelable on 30 days' notice with respect to Petrosource
         Transportation, except for the replacement of obsolete or worn
         equipment and the purchase of equipment on the termination of leases,
         all in accordance with past practice and prudent business;

                  (e) permit the presence, use, disposal, storage, or release of
         hazardous materials on, in, or under the Business Assets except in the
         ordinary course and in accordance with conditions that are generally
         recognized as safe and appropriate and that are in strict compliance
         with all Environmental Laws;

                                      -7-

<PAGE>   8


                  (f) except as provided above, make any capital expenditures to
         increase or improve the Business Assets in excess of $100,000;

                  (g) increase the wages or salary of any employee associated
         with the Business other than in the ordinary course, consistent with
         past practice or enter into any collective or individual employment
         bargaining process or employee agreements; or

                  (h) agree in writing or otherwise to do any of the foregoing
         items 2.09 (a) - (g).

         Section 2.10   PSC Employees.

                  (a) During the Option Period and with prior notice to PSC,
         Foreland may discuss with management and executive level salaried
         employees of PSC engaged for all or substantially all of their working
         time in the management and operation of the Business (the "Business
         Executives") the possible terms under which such Business Executives
         may be offered employment by Foreland or Refining after the Effective
         Time. If this Option is not exercised and the purchase of the Business
         is not Closed as contemplated hereby, for a period of two years
         subsequent to the termination of the Option Period neither Foreland nor
         any affiliated entity will offer any employment or consulting position
         to any Business Executive or induce or attempt to induce or persuade
         any such Business Executive to terminate his or her employment
         relationship with PSC or assist any other person or entity in doing the
         foregoing, except that Foreland shall not be precluded from considering
         and accepting unsolicited applications from such Business Executives or
         applications from such Business Executives in response to a general
         solicitation of employment not specifically directed to employees of
         PSC. Prior to the exercise of the Option, Foreland will not offer
         employment or discuss the existence of the Option with employees who
         are not Business Executives without PSC's prior written consent, which
         shall not be unreasonable withheld.

                  (b) If Foreland does exercise its Option to purchase the 
         Business, Foreland will offer employment to (i) each of the
         Business Executives employed by PSC at the Effective Time, and (ii)
         each PSC employee who devotes substantially all of his or her working
         time to the Business. Such offers will provide for (iii) a salary or
         hourly rate equivalent to the salary or hourly rate in effect as of the
         date hereof or such higher rate approved by Foreland, (iv) employee
         benefits equal to the standard employee benefit package provided by
         Foreland to its other employees, and (v) past service credit under the
         Foreland employee benefit plans for the time that such employee was
         employed by PSC. Foreland shall not be responsible for any accrued and
         unused vacation or sick leave or for any pension, retirement, or
         employee benefit obligation of PSC arising prior to the Effective
         Time.

         Section 2.11   Non-Circumvention of Option. During the Option Period
and, if the Option is timely exercised, then until the Effective Time, PSC shall
not, directly or indirectly:

                                      -8-

<PAGE>   9


                  (a) Enter into any transaction or enter into or continue
         negotiations with any party other than Foreland relative to any
         disposition by PSC of the Business or Business Assets;

                  (b) Solicit or encourage submission of inquiries, proposals,
         or offers from any other party relative to any disposition by PSC of
         the Business or Business Assets;

                  (c) Provide further information to any party other than
         Foreland relating to any possible disposition by PSC of its interest in
         the Business or Business Assets;

                  (d) Disclose to any third party, other than its attorney or
         other professional advisors, or bankers or other lenders on a
         confidential basis, PSC's willingness to sell the Business or Business
         Assets or discuss the existence or substance of this Agreement with any
         such third party; or

                  (e) Take any action, the reasonable and foreseeable
         consequence of which would be to materially frustrate the purpose,
         intent, or financial benefit to Foreland of this Agreement and the
         transactions contemplated hereby.

If, during the Option Period, PSC receives an offer or proposal relating to the
possible acquisition of the Business or Business Assets or any part thereof, it
will immediately notify Foreland of said offer or proposal, the identity of the
party making the offer or proposal, and the specific terms of such offer or
proposal.


                                   ARTICLE III
                               PURCHASE OF ASSETS

         Section 3.01   The Purchase. Foreland shall have the right to exercise
the Option at any time during the Option Period as set forth in Article II of
this Agreement. On such timely exercise, PSC shall be obligated to sell, and
Foreland shall be obligated to purchase the Business and Business Assets as set
forth in this Article III. Except as set forth in section 3.02 of this
Agreement, and on the terms and conditions contained in this Agreement, PSC
shall sell, assign, transfer, convey, set over, and deliver to Foreland, and
Foreland shall purchase from PSC, the Business and the Business Assets,
consisting of the following:

                  (a) (i) all tangible personal property owned by PSC and
         located at, or used in connection with, the operation of the Eagle
         Springs Refinery, the Tonopah Refinery (including the emulsifier),
         or Petrosource Transportation, (ii) the asphalt blower equipment
         located at the Fredonia Terminal (provided Foreland, at its own
         expense, removes such equipment from PSC's property within 24 months
         after the Closing Date, otherwise the ownership of such equipment shall
         revert to PSC), and (iii) the rights of PSC as lessee of all tangible
         personal property leased, including the equipment, tools, vehicles,
         furniture and fixtures, and supplies described in Exhibit "A" (the
         "Tangible Personal Property");

                  (b) all of PSC's rights as lessee to the real property and all
         buildings and improvements thereon on which the Eagle Springs Refinery
         and the Tonopah Refinery are located, as more particularly described in
         Exhibit "B" (the "Real Property");

                                      -9-

<PAGE>   10


                  (c) all inventory of PSC existing as of the Effective Time
         which was purchased in furtherance of the Business, as described in
         Exhibit "C" (the "Inventory");

                  (d) all of the notes and trade and other accounts receivable
         associated with the Eagle Springs Refinery, the Tonopah Refinery, or
         Petrosource Transportation existing as of the Effective Time, and all
         cash and cash equivalents in payment thereof received after the
         Effective Time, as described in Exhibit "D" (the "Accounts
         Receivable");

                  (e) all of PSC's rights under (i) those crude oil and transmix
         purchase contracts and agreements described in Exhibit "E" which were
         entered into by PSC in the ordinary course of business and are
         executory, and (ii) all contracts and agreements intended to facilitate
         the sale of asphalt or other refinery products manufactured at the
         Eagle Springs or Tonopah refineries, together (the "Contract Rights");

                  (f) lists of current and past (within the preceding two years)
         customers and lists of prospective customers (i.e., persons with whom
         PSC has discussed potential sales and from whom PSC has received what
         PSC believes to be serious expressions of interest) of the Business
         compiled by PSC including, to the extent the same is in the possession
         of PSC, the name, address, contact person, and telephone number of each
         such customer or prospective customer (the "Customer Lists"), set forth
         on Exhibit "F";

                  (g) all lists of current and past (within the preceding two
         years) suppliers and all files, records, and data used in connection
         with the Business;

                  (h) those prepaid expenses, fees, deposits, letters of credit,
         or bonds with respect to the Business or Business Assets, including
         those set forth on Exhibit "G," (the "Prepaid Expenses");

                  (i) all federal, state, or local licenses, permits, or
         approvals granted or used in connection with the operation of the
         Business or the Business Assets;

                  (j) all of PSC's rights under warranties covering the Tangible
         Personal Property being transferred hereunder to the fullest extent
         permitted by such warranties;

                  (k) all intellectual property of PSC necessary to the
         operation of the Business, including the proprietary scheduling
         software used in connection with Petrosource Transportation and the
         right to use any trade secrets, confidential or proprietary
         information, or general processes used by PSC in the conduct of the
         Business, together with a non-exclusive right to use the process and
         name "Melt Pac(TM)," to sell asphalt manufactured at either the Eagle
         Springs Refinery or the Tonopah Refinery in the states of Arizona,
         California, Colorado, Nevada, New Mexico and Utah only, provided
         Foreland pays PSC a royalty equal to $2.00 per ton of roofing asphalt
         sold in Melt Pac(TM) bags., all as described in Exhibit "H" (the
         "Intellectual Property");

                  (l) the current telephone number(s) used in connection with
         the Business at its locations in Eagle Springs and Tonopah, Nevada, and
         telephone and other directory listings used by PSC in the operation of
         the Business other than the Salt Lake City numbers;

                                      -10-

<PAGE>   11


                  (m) to the extent permitted by the carrier, all contracts of
         insurance relating to the Business or Business Assets and all claims,
         casualties, or other occurrences prior to the Closing Date and prepaid
         premiums or deposits related thereto, which policies are specific to
         and separately maintained for the Business Assets, as described in
         Exhibit "I" (the "Insurance Policies");

                  (n) originals or copies of all accounting, operating,
         management, and other business records in documentary or electronic
         form relating to the Business (provided, however, PSC may maintain a
         record copy of any such items);

                  (o) the rights of PSC under all confidentiality,
         non-competition, or similar agreements with present or former
         employees, consultants, and others associated with PSC insofar as
         related to the Business;

                  (p) the goodwill of PSC associated with the business; and

                  (q) all other assets of PSC used to carry out the Business or
         Business Assets not included in any specific provision of the foregoing
         subsections existing as of the Effective Time which are not excluded in
         section 3.02.

         Section 3.02   Excluded Assets.  Notwithstanding the provisions of
Section 3.01, the assets conveyed hereunder shall not include the following:

                  (a) the two asphalt spreader trucks currently in the name of
         Petrosource Transportation or Petro Source Refining Partners.

                  (b) the bank accounts maintained by PSC on behalf of the
         Business;

                  (c) all corporate books and records not relating to the
         Business or the Business Assets purchased hereunder, including the
         minute books and stock transfer books and the corporate seal of PSC;

                  (d) PSC's employee benefit agreements, plans, or similar
         arrangements.

                  (e) The office furniture and equipment used by any PSC
         employee who works on Business matters, but is not hired by Foreland;

                  (f) Software which is not used by PSC exclusively for the
         Business such as PSC's general ledger and accounting, and revenue
         distribution systems; and

                  (g) The items listed in Exhibit J.

         Section 3.03   Assumed Obligations. On the Closing Date, Foreland shall
assume and agree to discharge the following obligations and liabilities of PSC
with respect to the Business Assets, in accordance with their respective terms
and subject to the respective conditions thereof:

                   (a) all obligations of PSC under the leases set forth on
         Exhibit K-1 relating to the Tangible Personal Property or the Real
         Property;

                                      -11-

<PAGE>   12


                  (b) all current trade accounts payable and other current
         liabilities as of the Effective Time, that arose in the ordinary course
         of the Business, all to be set forth in Exhibit K-2 of the Closing
         Exhibits;

                  (c) all liabilities and obligations of PSC to be paid or
         performed after the Effective Time under the contracts and other
         agreements set forth on Exhibit K-3 relating to the Business and
         Business Assets being conveyed hereunder:

                  (d) all liabilities in respect of any taxes for the period
         beginning on the Effective Time, and any other accrued, but unpaid, as
         of the Effective Time and set forth in the Closing Schedule. Real and
         personal property taxes shall be prorated between the parties as of the
         Effective Time; and

                  (e) other obligations listed on Exhibit K-4.

         Section 3.04   Excluded Liabilities. Except to the extent that such
liabilities operate to reduce the purchase price pursuant to Section 3.05,
neither Foreland nor Refining shall assume or be obligated to pay, perform or
otherwise discharge the following:

                  (a) any liability or obligation of PSC, direct or indirect,
         known or unknown, absolute or contingent, not expressly assumed by
         Foreland pursuant to section 3.03 or otherwise pursuant to this
         Agreement;

                  (b) any liability for accrued bonuses, vacation, personal
         leave, or other amounts for the benefit of employees of the Business
         (the "Employee Benefits");

                  (c) taxes for any period prior to the Effective Time; and

                  (d) The accounts payable listed on Schedule 3.04.

         Section 3.05   Amount of Purchase Price. The consideration payable by
Foreland for the purchase (the "Purchase Price") of the Business and Business
Assets shall be the greater of either:

                  (a) Five million dollars ($5,000,000); or

                  (b) Four times the annualized Adjusted EBIDTA of the Business,
         as set forth below, based on the six months preceding the month in
         which the Option is exercised, as calculated in accordance with the
         following formula:

      (Adjusted EBIDTA for preceding six months) x 2 x 4 = Purchase Price

                  For purposes of the foregoing formula:

                                      -12-

<PAGE>   13


                  "Adjusted YTD EBIDTA" means the earnings of the Business
                         before interest, taxes, depreciation, and amortization,
                         as determined in accordance with GAAP, based on the six
                         months prior to the Exercise Date, adjusted (1) to
                         credit the Business with an amount equal to the
                         difference between Amoco's Southwest Wyoming Sweet
                         Crude Oil posted price less $6.15 per barrel and the
                         amount paid per barrel for oil purchased from Foreland
                         that is produced from the Ghost Ranch number 48-35
                         currently producing well during such period by PSC
                         under the Crude Oil Purchase Agreement entered
                         contemporaneous with the execution of this Agreement as
                         compared to the amount that would have been paid per
                         barrel of oil purchased under the immediately preceding
                         agreement, and (2) to substitute for actual general and
                         administrative expenses incurred in the operation of
                         the Business an amount equal to $800,000 per month.

plus, in the case of either (a) or (b) above, the total of

                  (u) the sum of capital expenditures incurred by PSC to improve
         or add to the Business Assets between the date hereof and the Effective
         Time;

                  (v) a negative amount equal to the sum of proceeds from the
         sale of any property, plant and/or equipment which is a component of
         the Business Assets to a third party by PSC between the date hereof and
         the Effective Time;

                  (w) the sum of the current assets, as determined in accordance
         with GAAP (except that finished goods inventory will be valued at 
         market), assigned to Foreland hereunder;

                  (x) a negative amount equal to the sum of the current
         liabilities, as determined in accordance with GAAP, assumed by Foreland
         hereunder, excluding, however, the current portion of long term
         liabilities or liabilities under operating leases assumed by Foreland
         hereunder that is not properly attributable to the period prior to 
         the Effective Date in accordance with GAAP;

                  (y) any unpaid portion of the Option Consideration; and

                  (z) 100,000 shares of Foreland Stock, the resale of which by
         PSC shall be covered by an effective Registration Statement in
         accordance with Article IX.

         Section 3.06   Payment of Purchase Price.  In consideration of the
purchase of the Business Assets, at the Closing Foreland shall or shall cause
Refining to:

                  (a) pay to PSC the cash portion of the Purchase Price in
         immediately available funds by wire transfer in accordance with Section
         2.02(c); and

                  (b) deliver to PSC one or more stock certificate(s) registered
         in the name of PSC or its designee for the 100,000 shares of Foreland
         Stock constituting a portion of the Purchase Price.

                                      -13-

<PAGE>   14


That amount of the Purchase Price consisting of the unpaid portion of the Option
consideration shall be paid in accordance with Section 2.02.

         Section 3.07   Closing; Closing Date. Subject to timely exercise by
Foreland of the Option, the consummation of the sale and purchase of the
Business and Business Assets as contemplated hereby (the "Closing") shall take
place at the offices of Kruse, Landa & Mayor, L.L.C., at 50 West Broadway,
Eighth Floor, Bank One Tower, Salt Lake City, Utah 84101, or such other place as
is mutually acceptable to the parties hereto as soon as practicable within 20
days after the Effective Time, but in any event on or before December 31, 1998.
The date on which the Closing takes place shall be the "Closing Date."

         Section 3.08   Effective Time. The Closing shall be effective (the
"Effective Time") as of midnight, Nevada time, on the last day of the month
during which Petro Source receives Foreland's notice of Option Exercise.

         Section 3.09   Closing Events. At the Closing, each of the respective
parties hereto shall execute, acknowledge, and deliver (or shall cause to be
executed, acknowledged, and delivered) (i) the deeds, bills of sale,
assignments, and other documents and instruments of conveyance and transfer, all
in form and substance reasonably satisfactory to Foreland and its counsel,
necessary to vest, subject to any scheduled condition subsequent, marketable
title in Foreland to all the rights, interests, assets, and properties to be
acquired by Foreland pursuant to this Agreement; (ii) originals or copies of all
of PSC's agreements, contracts, and commitments assumed by Foreland hereunder;
(iii) a list of all of the customers and suppliers of PSC relevant to the
Business, including addresses and telephone numbers; (iv) all certificates,
opinions, schedules, agreements, resolutions, or other instruments required by
this Agreement to be so delivered at or prior to the Closing; and (v) such other
items as may be reasonably requested by the parties hereto and their respective
legal counsel in order to effectuate or evidence the transactions contemplated
hereby. In addition, at the Closing, Foreland shall deliver to PSC the Purchase
Price in accordance with Section 3.06.

         Section 3.10   Allocation of Purchase Price. The Purchase Price shall
be allocated among the Business Assets according to the Schedule 3.11. PSC and
Foreland agree to prepare all financial reports of the transactions contemplated
herein, including all federal and state tax returns, in accordance with the
allocation of the Purchase Price set forth in such Schedule and hereby indemnify
each other against any loss which such other party may incur by reason of the
Indemnifying Party's failure to comply with this section. Upon request, each
party agrees to provide to the other photocopies of any forms filed with any
taxing authority in which the results of this transaction are reported.

         Section 3.11   Further Assurances.  At the Closing or at any time
thereafter, each party shall execute and deliver to the other such opinions,
certificates, consents, and other documents required herein and execute and
deliver such other documents, and take such other actions, as may be reasonably
requested to carry out the terms of this Agreement, all as the other party
hereto may reasonably require.

         Section 3.12   Registration of Purchase Price Shares. Foreland will, at
its sole cost, in any registration statement filed with the SEC for the sale of
Foreland Shares after the Closing, include the Shares issued to PSC as part of
the purchase price ("Purchase Shares") and cover the resale of such Shares by
and for the account of PSRC, which shall be named as a selling shareholder in
such

                                      -14-

<PAGE>   15


registration statement, all as more particularly set forth in Article IX hereof,
and shall use its best efforts to maintain its effectiveness throughout for at
least three months. If Foreland has not filed such a registration statement
within one year of the date of Closing, Foreland shall file, at its sole cost,
and utilize its best efforts to obtain the effectiveness of, by acceleration, a
registration on such form as Foreland may select under the Securities Act
covering the resale of the Purchase Shares by and for the account of PSRC, which
shall be named as a selling shareholder in such registration statement, all as
more particularly set forth in Article IX hereof. Foreland shall utilize its
best efforts to obtain the effectiveness of such Registration Statement at the
earliest practicable date and to maintain its effectiveness for a period of at
least three months.

         Section 3.13 Covenants Not to Compete. At the time of Closing, the
parties shall enter into one or more agreements providing that: (i) PSC and its
affiliates will not compete with Foreland for (x) the refining of Nevada crude
hydrocarbons or (y) the processing of transmix in the states of California,
Utah, Arizona, or Nevada for a period of three years after the Closing Date; and
(ii) Foreland and its affiliates will not manufacture or sell emulsions in the
state of Nevada for a period of two years after the Closing Date. 


                                   ARTICLE IV
                REPRESENTATIONS, COVENANTS, AND WARRANTIES OF PSC

         PSC hereby represents, covenants, and warrants to Foreland, such
representations, covenants, and warranties to be made as of the date hereof and
at and as of the Closing Date and to survive the Closing and continue in
accordance with the terms hereof (except as otherwise expressly set forth in
Article VII hereof), as follows:

         Section 4.01   Organization. Petro Source Corporation, Petro Source
Refining Corporation and Petrosource Transportation are each corporations duly
organized, validly existing, and in good standing under the laws of the state of
Utah and have the corporate power and are duly authorized, qualified,
franchised, and licensed under all applicable laws, regulations, ordinances, and
orders of public authorities to own all of their properties and assets and to
carry on their business in all material respects as it is now being conducted.
There is no jurisdiction in which any of such companies is not so qualified in
which the character and location of the assets owned by it or the nature of the
business transacted by it requires qualification, except where failure to do so
would not have a material adverse effect on the business or properties of such
company. The execution and delivery of this Agreement does not, and the
consummation of the transactions contemplated by this Agreement in accordance
with the terms hereof will not, violate any provision of such companies'
articles of incorporation or bylaws. Each of such companies has taken all action
required by law, its articles of incorporation, its bylaws, or otherwise to
authorize the execution and delivery of this Agreement and the consummation of
the transactions herein contemplated.

         Section 4.02   Approval of Agreement. The board of directors and
shareholders of each of Petro Source Corporation, Petro Source Refining
Corporation and Petrosource Transportation have authorized the execution and
delivery of this Agreement and have approved the consummation of the
transactions contemplated hereby. This Agreement is the legal, valid, and
binding agreement of PSC enforceable between the parties in accordance with its
terms, except as such enforcement may be limited by bankruptcy, insolvency, or
other laws affecting the enforcement of creditors' rights generally and by
general principles of equity.

         Section 4.03   Financial Statements.

                                      -15-

<PAGE>   16


                  (a) Included in Schedule 2.03 to this Agreement are the
         audited balance sheets of Petro Source Refining Partners ("PSRP") as of
         December 31, 1995 and 1996, and the related statements of operations,
         stockholders' equity, and cash flows for the years ended December 31,
         1995 and 1996, respectively, including the notes thereto and the
         reports of Deloitte & Touche. Such schedule also includes the unaudited
         balance sheet of PSRP as of October 31, 1997 ("PSRP's Current Balance
         Sheet"), and the related statements of operations, cash flows, and
         partners' equity for the ten months ended October 31, 1997, which
         present fairly the results of operations and financial position of PSC
         for the periods and as of the dates indicated in all material respects.
         All such financial statements have been prepared in accordance with
         GAAP consistently applied throughout the periods involved as explained
         in the notes to such financial statements, except that PSRP's Current
         Balance Sheet does not contain all of the footnote disclosures required
         by GAAP.

                  (b) Such financial statements, as of their respective dates,
         fairly reflect in all material respects the financial position of the
         Business as of such date and the results of operations for the periods
         presented. Except as reflected on the most recent balance sheet, the
         Business did not have any liability or obligation (absolute or
         contingent) which should be reflected in a balance sheet or the notes
         thereto prepared in accordance with GAAP. All assets reflected on
         PSRP's Current Balance Sheet are properly reported and present fairly
         in all material respects the assets of the Business in accordance with
         GAAP, except that PSRP's Current Balance Sheet does not contain all of
         the footnote disclosures required by GAAP.

                  (c) The books and records, financial and otherwise, with
         respect to the Business are in all material respects complete and
         correct and have been maintained in such a fashion as to permit the
         preparation and audit of financial statements (at Foreland's expense)
         for at least two full years in accordance with GAAP.

                  (d) Except as set forth on the most recent Balance Sheet or in
         the Notes thereto, or Schedule 4.03, PSC has:

                           (i) good and marketable title to its receivables,
                  free of any security interests or liens and free of any
                  material defenses, counterclaims, and set-offs, and all of
                  such receivables are actual and bona fide receivables
                  representing obligations for the total dollar amount thereof
                  shown on its books; and

                           (ii) has no material contingent liability, direct or
                  indirect, matured or unmatured.

                  The receivables set forth on the most recent Balance Sheet
         arose in the ordinary course of business and are collectable in all
         material respects upon the continuation of reasonable collection
         efforts by employees of the Business, without resorting to litigation.

                  (e) PSC represents that the financial statements of PSRP are
         of limited applicablility because they pertain to a partnership that
         was terminated as of the end of October 1997 when PSRC acquired all of
         the partnership interest of the only other partner in PSRP, and PSRP
         owned assets in addition to the Business Assets, including, but not
         limited to, the Fredonia terminal and the Melt Pac(TM) patents and
         licenses.

                                      -16-

<PAGE>   17


         Section 4.04   Absence of Certain Changes or Events. Except as set
forth in Schedule 4.04 to this Agreement, since the date of PSRP's Current
Balance Sheet described in Section 4.03, there has not been (i) any material
adverse change in the business, operations, properties, level of inventory,
assets, or condition of the Business or (ii) any damage, destruction, or loss to
Business Assets (whether or not covered by insurance) materially and adversely
affecting the business, operations, properties, assets, or conditions of the
Business, including any:

                  (a) material adverse change in the liabilities or assets of
         PSC relating to the Business or Business Assets;

                  (b) change in the manner in which PSC carries on its business
         or preserves its business organization and existing business relations,
         which might affect the Business or the Business Assets in any material
         way;

                  (c) transaction by PSC relating to the Business or Business
         Assets, except in the ordinary course of business as conducted on the
         date of PSRP's Current Balance Sheet;

                  (d) failure to maintain in full force and effect substantially
         the same level and types of insurance coverage as in effect on the date
         of PSRP's Current Balance Sheet or any destruction, damage to, or loss
         of any of the Business Assets (whether or not covered by insurance)
         materially and adversely affecting the business or prospects of PSC
         relating to the Business or the Business Assets;

                  (e) sale, assignment, transfer of any tangible or intangible
         assets of PSC associated with the Business, including any rights to
         intellectual property, except in the ordinary course of business;

                  (f) mortgage, pledge, or other encumbrance of any tangible or
         intangible assets of PSC relating to the Business; or

                  (g) written or oral agreement by PSC to take any of the
         actions described above.

         Section 4.05   Governmental Authorizations. PSC has all licenses,
franchises, permits, and other governmental authorizations that are legally
required to enable it to conduct its businesses in all material respects as
conducted on the date of this Agreement. No authorization, approval, consent, or
order of, or registration, declaration, or filing with, any court or other
governmental body is required in connection with the execution and delivery by
PSC of this Agreement and the consummation by PSC of the transactions
contemplated hereby. Schedule 4.05 sets forth a list of all franchises, grants,
authorizations, licenses, permits, easements, variances, exemptions, consents,
certificates, approvals and orders necessary or convenient to own, lease and
operate its properties and to carry on the Business (collectively, the "Business
Permits"), and there is no action, proceeding or investigation pending or
threatened of which PSC has received actual notice regarding suspension or
cancellation of any of the Business Permits, except where the failure to
possess, or the suspension or cancellation of, such Business Permits would not
have a material adverse effect on the Business or Business Assets. PSC is not in
conflict with, or in default or violation of any law applicable to the Business
or Business Assets. PSC is not in conflict with, or in default or violation of 
any law applicable to the Business or Business Assets. During

                                      -17-

<PAGE>   18


the three-year period prior to the date of this Agreement, PSC has not received
from any governmental entity any written notification with respect to possible
conflicts, defaults or violations of Laws, except as set forth in Schedule 4.05
of the PSC Disclosure Schedule and except for written notices relating to
possible conflicts, defaults or violations that would not have a material
adverse effect on the Business or Business Assets.

         Section 4.06   Accounts Receivable; Inventories. All of the Accounts
Receivable of PSC included in the Business Assets have arisen from bona fide
transactions by PSC in the ordinary course of its business and are good and
collectible in the ordinary course of business at the aggregate recorded amounts
thereof. The Inventory of PSC (including raw materials, supplies,
work-in-process, finished goods and other materials), a description of which is
included in an exhibit to this Agreement as provided above, is in good,
merchantable, resalable, and usable condition.

         Section 4.07   Real Property.

                  (a) PSC will obtain, pay for, and deliver to Foreland, within
         30 days after execution of this Agreement, a commitment for a policy of
         title insurance respecting the leasehold interests in the Real Property
         issued by a title insurance company reasonably acceptable to Foreland,
         accompanied by a copy of all documents listed as exceptions to good and
         clear marketable title in such commitment (the "Title Report"). PSC
         shall pay any title commitment cancellation charge incurred in
         connection with the Title Report. PSC shall also deliver to Foreland
         (i) a copy of all leases affecting such Real Property not expiring
         before the Closing Date, (ii) a copy of a survey of the Real Property,
         if PSC has one, and (iii) a copy of each environmental assessment or
         survey of any of the Real Property in the care, custody, or control of
         PSC. The Title Report and the other documents and information described
         above, which shall be included in Schedule 2.07 to this Agreement, are
         hereinafter referred to as the "Real Property Disclosures."

                  (b) PSC warrants marketable title to the Real Property, save
         and except for only the exceptions to title set forth in the Title
         Report that are acceptable to Foreland as not impairing good and clear
         marketable title together with the printed exceptions and exclusions
         referred to in such Title Report; private, public, and utility
         easements; roads and highways, if any; the special taxes or assessments
         for improvements not yet completed; installments not yet due at the
         date hereof or any special tax or assessment for improvements
         heretofore completed; rights-of-way for drainage ditches, feeders and
         laterals; zoning laws and ordinances; all matters, including but not
         limited to encroachments which would be disclosed by an accurate survey
         and/or inspection of the Real Property; and all acts or omissions of
         Foreland and all governmental authorities and those acting by, through,
         or under such parties.

                  (c) Foreland shall have until 30 calendar days after the date
         of delivery of the Real Property Disclosures (the "Real Property Due
         Diligence Period") in which to inspect the Real Property and the Real
         Property Disclosures. If, within the Real Property Due Diligence
         Period, Foreland advises PSC in writing of reasonable objections to the
         status of title to or that the condition of the Real Property is in
         violation of laws, ordinances, rules or regulations, PSC shall have the
         right to attempt to cure such objections within 30 calendar days after
         the expiration of such Real Property Due Diligence Period; Foreland
         shall have no obligation to cure such objections. If PSC does undertake
         to cure such objections of Foreland, such curative measures shall be
         set forth in writing and shall be

                                      -18-

<PAGE>   19


         specifically enforceable by Foreland. If Foreland's objections are not
         resolved to its reasonable satisfaction within such 30 calendar day
         cure period, Foreland may void this Agreement by written notice thereof
         to PSC within seven calendar days after expiration of such 30 day cure
         period, provided, however, to the extent that the objection is in
         respect to (i) title defects, or (ii) the Business Assets' conformity
         to environmental laws or regulations, but such objectional condition is
         of a nature that an ordinary purchaser of refining facilities would
         accept such condition in light of an indemnity from a seller similar to
         PSC, PSC may cure the objection by indemnifying Foreland against any
         loss, cost or expense incurred by Foreland with respect to such
         condition in excess of $100,000. During the Real Property Due Diligence
         Period, Foreland shall have the right to terminate this Agreement if
         Foreland reasonably determines PSC's representations and warranties are
         false in any respect material to the transaction, taken as a whole. If,
         at the end of the Due Diligence Period, this Agreement is not
         terminated by Foreland in the manner provided above, or Foreland has
         not delivered written objection to the PSC pursuant to this subsection,
         at the Closing, if any, Foreland will be deemed to have accepted the
         Real Property in "as is, where is" condition in accordance with the
         provisions set forth herein.

                  (d) For the purposes set forth in this section, PSC hereby
         grants Foreland a limited license to inspect the Real Property at
         reasonable times agreeable to PSC, so long as such inspection does not
         damage the improvements and other property located on the Real Property
         or interfere with the ordinary conduct of PSC's business. Foreland
         agrees to indemnify, defend, and hold PSC harmless from any cost,
         expense, damage, liability, or claim arising out of or in connection
         with the exercise by the Foreland of the rights conferred under the
         provisions of this section. Notwithstanding the above or anything else
         herein, if Foreland desires to have the Real Property inspected for the
         presence of hazardous materials beyond a standard Phase I Environmental
         Assessment or have the surface penetrated in any manner for any purpose
         (such as soils tests), it shall first inform PSC in writing of such
         desires. Thereafter, PSC and Foreland shall meet to discuss how and
         when such inspection(s) shall be undertaken, it being understood and
         agreed that PSC is concerned about the confidentiality of any such
         inspection and resulting reports, if any, and potential damage to or
         interference with the Real Property.

                  (e) The Real Property, a description of which is included in
         an exhibit to this Agreement as provided above, constitutes all
         interests in any real property, options to acquire any such interest,
         or easements, rights of way, or similar rights with respect to real
         property owned by PSC and used in or relating to the operation of the
         Business. There are no leases, subleases, tenancies or other rights of
         occupancy affecting such Real Property. The Real Property and
         improvements owned by PSC and used in or relating to the Business are
         in good operating condition and repair, are suitable for the purposes
         for which they are being used, and no such improvement, or any
         appurtenance thereto or equipment therein, violates any restrictive
         covenant or any provisions of any federal, state or local law,
         ordinance or zoning regulation, or encroaches on any property owned by
         others. PSC has the right, power, and authority to transfer good and
         clear marketable title in its leasehold interests in the real property
         comprising the Real Property to Foreland, without the consent of any
         other person or entity, as contemplated by this Agreement.

                  (f) At the Closing, PSC shall deliver possession of the Real
         Property broom clean and free of debris and personal property not to be
         conveyed pursuant hereto.

                                      -19-

<PAGE>   20


         Section 4.08   Tangible Personal Property. The list of Tangible
Personal Property, a description of which is included in an exhibit to this
Agreement as provided above, is a complete and accurate list of all machinery,
equipment, vehicles, furniture and other tangible property owned or leased by
PSC and used in or relating to the Business. Except as disclosed in Schedule
4.08, the Tangible Personal Property is in good operating condition and repair 
and is suitable for the purposes for which it is being used. The Tangle Personal
Property includes all of the assets and property necessary and convenient to
operate the Business in the ordinary course in the fashion in which it has been
operated by PSC. Unless otherwise stated in such exhibit, all of such Tangible
Personal Property is located on the Real Property. All leases for tangible
property are in full force and effect, have an unexpired term as set forth in
the lease agreements, and there is no outstanding default or event that with the
passage of time or notice would constitute a default, on behalf of PSC or any
other party to the lease agreements. The remaining obligations of PSC under the
terms of each lease for Tangible Personal Property do not exceed the current
fair market value of the personal property subject to such lease. PSC has the
right, power, and authority to transfer all of the tangible and intangible
property comprising the Business Assets to Foreland, without the consent of any
other person or entity, as contemplated by this Agreement. At the Closing, PSC
will deliver possession of the Tangible Personal Property to Foreland with all
equipment and vehicles in working order.

         Section 4.09   Intellectual Property. The list of Intellectual
Property, a description of which is included in an exhibit to this Agreement as
provided above, is a complete and accurate list of all of the trade secrets,
technology, know-how, tradenames, trademarks, servicemarks, and other
proprietary information owned by or used in connection with the business of PSC,
including all copyrights, patents, patent applications, registrations, and
applications with respect. Except as set forth in the above referenced exhibit,
PSC owns the entire right, title, and interest in and to such Intellectual
Property, and such Intellectual Property is not subject to the payment of
royalties or any other obligation to any other person or entity. Except as set
forth in the above referenced exhibit, none of the employees of PSC owns,
directly or indirectly, any right, title, or interest in or to the Intellectual
Property. To the best knowledge of PSC, none of the Intellectual Property is
subject to any order, decree, judgment, stipulation, settlement, encumbrance, or
attachment. There are no pending or threatened proceedings, litigation, or other
adverse claims of which PSC is aware affecting or with respect to the
Intellectual Property. The Intellectual Property does not infringe on the
copyright, patent, trade secret, know-how, or other proprietary right of any
other person or entity and comprises all such rights necessary to permit the
operation of the business of PSC as now being conducted.

         Section 4.10   Employees and Related Agreements; ERISA.

                  (a) Schedule 4.10 contains a description of each "employee
         pension benefit plan" (as such term is defined in Section 3(2) of
         Employee Retirement Income Security Act of 1974, as amended ("ERISA"))
         or "welfare benefit plan" (as such term is defined in Section 3(1) of
         ERISA), maintained by PSC, or with respect to which PSC is required to
         contribute, on behalf of any employees of PSC. Each of the plans
         described in such schedule which is intended to qualify under Section
         401(a) of the Internal Revenue Code (the "Code"), other than any
         "multiemployer plan" (as such term is defined in Section 3(37) of
         ERISA) has received a favorable determination letter from the IRS, and
         no event has occurred which would cause any such plan to cease being so
         qualified. Each of the plans described on such schedule (other than any
         multiemployer plans) complies in form in all material respects in
         accordance with the requirements of ERISA and, where applicable, the
         Code. To the best knowledge of PSC, each

                                      -20-

<PAGE>   21


         multiemployer plan is qualified under Section 401(a) of the Code and
         complies in form in all material respects and has been administered in
         all material respects in accordance with the requirements of ERISA and,
         where applicable, the Code.

                  (b) None of PSC's employee plans subject to Title IV of ERISA
         has terminated; no proceeding has been initiated to terminate any such
         plan; and there has been no "reportable event" (within the meaning of
         Section 4043(b) of ERISA). PSC has not incurred any liability on
         account of a "partial withdrawal" or a "complete withdrawal" (within
         the meaning of Sections 4203 and 4205, respectively, of ERISA) from any
         multiemployer plan, and PSC is not aware of any events which could
         result in any such partial or complete withdrawal. None of PSC's
         employee plans which is a defined benefit plan has incurred any
         "accumulated funding deficiency" (within the meaning of Section 412 of
         the Code), whether or not waived. Assuming that each of PSC's employee
         plans which is subject to Title IV of ERISA (other than multiemployer
         plans) were terminated as of the Closing Date, PSC would not have any
         liability under Title IV of ERISA as a result of such termination. The
         PSC has no obligations under any of PSC's employee plans or otherwise
         to provide health benefits to former employees of PSC, except as
         specifically required by law.

                  (c) Except as to multiemployer plans (as to which this
         representation and warranty is made to the best knowledge of PSC),
         neither PSC nor, to the best knowledge of PSC, any other "disqualified
         person" (within the meaning of Section 4975 of the Code) or "party in
         interest" (within the meaning of Section 3(14) of ERISA) has engaged in
         any "prohibited transaction" (within the meaning of Section 4975 of the
         Code or Section 406 of ERISA) with respect to any of PSC's employee
         plans which could subject any such plan (or its related trust) or PSC,
         or any officer, director or employee of PSC to the penalty or tax under
         Section 402(i) of ERISA or Section 4975 of the Code.

                  (d) There is no pending or, to the best knowledge of PSC,
         threatened claim which alleges any violation of ERISA or any other law
         (i) by or on behalf of any of PSC's plans or (ii) by any employee of
         PSC or any plan participant or beneficiary against any such plan.

         Section 4.11.  Employee Relations. The PSC has complied in respect of
the Business in all material respects with all applicable laws, rules and
regulations that relate to prices, wages, hours, harassment, disabled access,
and discrimination in employment and collective bargaining and to the operation
of its business and is not liable for any arrears of wages or any taxes or
penalties for failure to comply with any of the foregoing. PSC believes that its
relations with the employees of PSC are satisfactory.

         Section 4.12   Litigation and Proceedings. Except as set forth on
Schedule 4.12, there are no actions, suits, or proceedings pending or, to the
knowledge of PSC, threatened by or against, or affecting the Business or
Business Assets, at law or in equity, before any court or other governmental
agency or instrumentality, domestic or foreign, or before any arbitrator of any
kind; PSC does not have any knowledge of any default on its part with respect to
any judgment, order, writ, injunction, decree, award, rule, or regulation of any
court, arbitrator, or governmental agency or instrumentality.

         Section 4.13   Material Contract Defaults. PSC is not in default in any
respect under the terms of any outstanding contract, agreement, lease, or other
commitment which is material to the business,

                                      -21-

<PAGE>   22


operations, properties, assets, or condition of PSC, and there is no event of
default or other event which, with notice or lapse of time or both, would
constitute a default in any material respect under any such contract, agreement,
lease, or other commitment in respect of which PSC has not taken adequate steps
to prevent such a default from occurring.

         Section 4.14   Taxes. All federal, state, local, and foreign tax
returns and tax reports required to be filed by or on behalf of PSC have been
filed with the appropriate governmental agency and all jurisdictions in which
such reports are required to be filed and all taxes which have become due
pursuant to such tax returns or to any assessment which has become payable have
been paid. Proper and accurate amounts of taxes have been withheld by or on
behalf of PSC with respect to all compensation paid to employees of PSC for all
periods ending on or before the date hereof, and all deposits required with
respect to compensation paid to such employees have been made, in complete
compliance with the provisions of all applicable federal, state, and local tax
and other laws.

         Section 4.15   Third-Party Consents.  Except as set forth in Schedule
Section 4.15, no contract, agreement, lease, or other commitment, written or
oral, to which PSC is a party or to which any of its properties or assets are
subject require the consent of the other party in order to consummate the
transactions herein contemplated, except where the failure to obtain such
consent would not have a material adverse effect on the Business Assets. In the
event a supply or sales contracts may not be assigned without the consent of the
other party to the agreement, which consent cannot be obtained before Closing,
PSC will remain the party to the contract, and purchase products from Foreland
with respect to sales contracts, and sell products to Foreland with respect to
purchase contracts, in either case at PSC's cost so as to maintain the economic
value of the contract. PSC will remain a party to such contracts as nominee for
the account of Foreland, and Foreland will otherwise fulfill all obligations
with respect to such contracts and will hold PSC harmless from any loss, cost or
expense with respect thereto. The failure to obtain a consent in such a case
will not be considered a material adverse event, or otherwise give Foreland the
right to terminate this Agreement.

         Section 4.16   No Conflict With Other Instruments. The execution of
this Agreement and the consummation of the transactions contemplated by this
Agreement will not result in the breach of any term or provision of, or
constitute an event of default under, any material indenture, mortgage, deed of
trust, or other material contract, agreement, or instrument to which PSC is a
party or to which any of its properties or operations are subject, except where
such breach or default would not have a material adverse effect on the assets
transferred pursuant hereto.

         Section 4.17   Compliance With Laws and Regulations. PSC has complied
with all applicable statutes and regulations of any federal, state, or other
governmental entity or agency thereof, except to the extent that noncompliance
would not materially and adversely affect the business, operations, properties,
assets, or condition of PSC or except to the extent that noncompliance would not
result in the incurrence of any material liability for PSC.

         Section 4.18   Hazardous Substances.

                  (a) The following words and phrases shall have the meanings
         indicated:

                           (i) "Current Actual Knowledge" shall mean that no
                  information that would give PSC current actual knowledge of
                  the inaccuracy of any statements has come to the

                                      -22-

<PAGE>   23


                  attention of PSC's officers and directors; however, no special
                  or independent investigation has been undertaken to determine
                  the accuracy of such statements.

                           (ii) "Environment" shall mean soil, surface waters,
                  groundwaters, land, stream sediments, surface or subsurface
                  strata, ambient air, and any environmental medium.

                           (iii) "Environmental Law" shall mean any
                  environmental related law, regulation, rule, ordinance, or
                  bylaw at the federal, state, or local level, existing as of
                  the date hereof.

                           (iv) "Hazardous Material" shall mean any pollutant,
                  toxic substance, hazardous waste, hazardous material,
                  hazardous substance, or oil as currently defined in the
                  Resource Conservation and Recovery Act, as amended; the
                  Comprehensive Environmental Response, Compensation, and
                  Liability Act, as amended; the Federal Clean Water Act, as
                  amended; or any other federal, state, or local environmental
                  law, regulation, ordinance, rule, or bylaw, existing as of the
                  date hereof.

                           (v) "Permit" shall mean environmental permit,
                  license, approval, consent, or authorization issued by a
                  federal, state, or local governmental entity.

                           (vi) "Premises" shall mean the real property owned or
                  leased by PSC on which it currently conducts the business of
                  PSC.

                           (vii) "Release" shall mean any releasing, spilling,
                  leaking, pumping, pouring, emitting, emptying, discharging,
                  injecting, escaping, leaching, disposing, or dumping into the
                  Environment.

                           (viii) "Threat of Release" shall mean a substantial
                  likelihood of a Release which requires action to prevent or
                  mitigate damage to the Environment which may result from such
                  Release.

                  (b) Except as set forth on Schedule 4.18, to PSC's Current
         Actual Knowledge, (i)PSC has no liability under any Environmental Law
         applicable to the Premises and the facilities and operations thereon,
         and (ii) there are not currently any violations of Environmental Laws
         existing on the Premises or with respect to any facilities or
         operations thereon.

                  (c) Except as set forth on Schedule 4.18, to PSC's Current
         Actual Knowledge, PSC has not violated and is in compliance with all
         Environmental Laws applicable to the Premises and the facilities and
         operations thereon and has not generated, manufactured, refined,
         transported, treated, stored, handled, disposed, transferred, produced,
         processed, or Released any Hazardous Material on the Premises, except
         in compliance with such Environmental Laws, and has no Current Actual
         Knowledge of the Release or Threat of Release of any Hazardous Material
         on the Premises in violations of such Environmental Laws.

                  (d) Except as set forth on Schedule 4.18, within the last
         three years, PSC has not:

                                      -23-

<PAGE>   24


                           (i) Entered into or been subject to any consent
                  decree, compliance, order, or administrative order with
                  respect to the Premises or any facilities or operations
                  thereon;

                           (ii) Received notice under the citizen suit provision
                  of any violation of any Environmental Law in connection with
                  the Premises or any facilities or operations thereon;

                           (iii) Received any request for information, notice,
                  demand letter, administrative inquiry, or claim with respect
                  to a violation of any Environmental Law relating to the
                  Premises or any facilities or operations thereon;

                           (iv) Been subject to or threatened with any
                  governmental or citizen enforcement action with respect to a
                  violation of any Environmental Law on the Premises or at any
                  facilities or operations thereon; or

                           (v) Received notice of any civil action with respect
                  to any damages claimed to result from a Release of any
                  Hazardous Material on the Premises.

         Section 4.19   Insurance. The list of Insurance Policies, a description
of which is included as an exhibit to this Agreement as provided above, is a
complete and accurate description (including nature of coverage, limits,
deductibles, premiums and the loss experience for the most recent five years
with respect to each type of coverage) of all policies of insurance maintained,
owned or held by PSC on the date hereof with respect to the Business Assets or
the business of PSC. All of the insurable properties of PSC are insured for the
benefit of PSC in the amount of their full replacement value (subject to
reasonable deductibles) against losses due to fire and other casualty, with
extended coverage, and other risks customarily insured against by persons
operating similar properties in the localities where such properties are located
and under valid and enforceable policies issued by insurers of recognized
responsibility. Such policy or policies containing substantially equivalent
coverage will be outstanding and in full force at the Closing Date, as
hereinafter defined. PSC makes no representation, warranty, or covenant as to
whether any of the Insurance Policies or the benefits thereof may be conveyed to
Foreland. In the event any such insurance policy cannot be assigned, either by
the express terms of such policy or the governing practices or policies of the
issuer thereof, PSC shall convey to Foreland any premium or deposit refund
received as a result of the termination or cancellation of such policy.

         Section 4.20   Customers and Suppliers. There exists no actual or
threatened termination, cancellation or limitation of, or any modification or
change in, the business relationship of PSC with any customer or group of
customers of PSC, or whose purchases individually or in the aggregate are
material to the operations of the business of PSC, or with any supplier or group
of suppliers of PSC, or whose sales individually or in the aggregate are
material to the operations of the business of PSC, and there exists no present
or future condition or state of facts or circumstances involving customers,
suppliers or sales representatives which PSC can now reasonably foresee would
materially adversely affect the business of PSC or prevent the conduct of such
business after the consummation of the transactions contemplated by this
Agreement in essentially the same manner in which it has heretofore been
conducted.

         Section 4.21   Broker's Fees. The PSC has not engaged or entered into
any agreement with any broker or finder in connection with any of the
transactions contemplated by this Agreement requiring the payment of any fee or
compensation.

                                      -24-

<PAGE>   25


         Section 4.22   PSC Schedules. PSC has delivered to Foreland the
following disclosure schedules, which are collectively referred to as the "PSC
Schedules":

                  (a) A schedule required by Section 4.03 with respect to
         balance sheet;

                  (b) A schedule required by Section 4.04 with respect to
         material changes;

                  (c) A schedule required by Section 4.05 with respect to
         governmental authorizations;

                  (d) A schedule required by Section 4.10 with respect to
         employee plans;

                  (e) A schedule required by Section 4.12 with respect to
         litigation; and

                  (f) A schedule required by Section 4.15 with respect to real
         property.

PSC shall cause the exhibits to this Agreement, the PSC's Schedules, and the
other documents, instruments, and data delivered to Foreland hereunder to be
updated after the date hereof and prior to the Closing Date.

                                    ARTICLE V
             REPRESENTATIONS, COVENANTS, AND WARRANTIES OF FORELAND

         Foreland hereby represents, warrants, and covenants to PSC, as follows:

         Section 5.01   Organization, Standing and Power of Foreland. Foreland
is a corporation duly organized, validly existing, and in good standing under
the laws of the state of Utah and has the power and is duly authorized,
qualified, franchised, and licensed under all applicable laws, regulations,
ordinances, and orders of public authorities to own all of its properties and
assets and to carry on its business in all material respects as it is now being
conducted and is proposed to be conducted immediately following the Closing.

         Section 5.02   Reports; Financial Statements.

                  (a) Since March 31, 1991, Foreland and its subsidiaries have
         filed all forms, reports, statements and other documents required to be
         filed with (A) the Securities and Exchange Commission (the "SEC")
         including (1) all Annual Reports on Form 10-K, (2) all Quarterly
         Reports on Form 10-Q, (3) all proxy statements relating to meetings of
         stockholders (whether annual or special), (4) all Current Reports on
         Form 8-K and (5) all other reports, schedules, registration statements
         or other documents and (B) any applicable state securities authorities
         and all forms, reports, statements and other documents required to be
         filed with any other applicable federal or state regulatory
         authorities, except where the failure to file any such forms, reports,
         statements or other documents would not have a material adverse effect
         (all such forms, reports, statements and other documents in clauses (i)
         and (ii) of this Section 5.02(a)

                                      -25-

<PAGE>   26


         being referred to herein, collectively, as the "Foreland Reports"). The
         Foreland Reports, including all Surgical Reports filed after the date
         of this Agreement and prior to the Effective Time, (x) were or will be
         prepared in accordance with the requirements of applicable Law
         (including the Securities Act and the Exchange Act, as the case may be,
         and the rules and regulations of the SEC thereunder applicable to such
         Foreland Reports) and (y) did not at the time they were filed, or will
         not at the time they are filed, contain any untrue statement of a
         material fact or omit to state a material fact required to be stated
         therein or necessary in order to make the statements therein, in the
         light of the circumstances under which they are made, not misleading.

                  (b) Each of the consolidated financial statements (including,
         in each case, any related notes thereto) contained in Foreland Reports
         filed prior to the Effective Time, have been or will be prepared in
         accordance with the published rules and regulations of the SEC and
         generally accepted accounting principles applied on a consistent basis
         throughout the periods involved (except (a) to the extent required by
         changes in generally accepted accounting principles; (b) with respect
         to Foreland Reports filed prior to the date of this Agreement, as may
         be indicated in the notes thereto; and (c) with respect to interim
         financial statements as may be permitted by Article 10 of Regulation
         S-X) and fairly present or will fairly present the consolidated
         financial position of Surgical and its subsidiaries as of the
         respective dates thereof and the consolidated results of operations and
         cash flows for the periods indicated (including reasonable estimates of
         normal and recurring year-end adjustments), except that (x) any
         unaudited interim financial statements were or will be subject to
         normal and recurring year-end adjustments and (y) any pro forma
         financial statements contained in such consolidated financial
         statements are not necessarily indicative of the consolidated financial
         position of Surgical and its subsidiaries as of the respective dates
         thereof and the consolidated results of operations and cash flows for
         the periods indicated. [The foregoing are intended as factual
         disclosures in connection with the issuance of securities. The
         obligations under this Agreement are Foreland's, with the assets
         conveyed to Refining for operating purposes.]

         Section 5.03   Authority. The execution, delivery, and performance of
this Agreement has been duly and validly authorized and approved by Foreland's
board of directors and shareholder(s). The execution of and delivery of this
Agreement do not, and the consummation of the transactions described herein will
not, result in or constitute a default, breach or violation of Foreland's
articles of incorporation or bylaws or any other agreement to which Foreland is
a party.

         Section 5.04   Broker's Fees. Foreland has not engaged or entered into
any agreement with any broker or finder in connection with any of the
transactions contemplated by this Agreement requiring the payment of any fee or
compensation.

         Section 5.05   Material Misstatements or Omissions. To the best of
Foreland's knowledge and belief, no representation, warranty, or statement of
Foreland in this Agreement or in any document, certificate, or exhibit furnished
under this Agreement or in connection with the transactions contemplated hereby,
contains any untrue statement of a material fact, or omits to state a material
fact necessary to make the statements or facts contained therein not misleading.

                                      -26-

<PAGE>   27


                                   ARTICLE VI
               CONDITIONS PRECEDENT TO THE OBLIGATIONS OF FORELAND

         The obligation of Foreland to purchase the Business Assets and assume
the Obligations is subject to the satisfaction, at or before Closing, of each of
the conditions set out below except for any condition which has been waived in a
writing signed by Foreland at or prior to the Closing.

         Section 6.01   Performance by PSC. PSC shall have substantially
performed all conditions of this Agreement unless the requirement has been
waived in writing by Foreland.

         Section 6.02   Corporate Approval. The board of directors and
shareholders of PSC shall have approved the transactions described in this
Agreement and resolutions setting forth those approvals shall have been
certified to Foreland by an officer of PSC.

         Section 6.03   Satisfaction of Condition of Title to Real Property.
Foreland shall not have timely terminated this Agreement pursuant to the
provisions of Section 4.07.

         Section 6.04   No Material Adverse Change Through the Closing Date.
There shall not have been any material adverse change in the financial condition
or in the results of operations of the Business, and there shall not have been
any material loss or damage to the Business Assets or Business, whether or not
insured, materially affecting PSC's ability to conduct a material part of the
Business.

         Section 6.05   Absence of Litigation. No action, suit, or proceeding
before any court or any governmental body or authority pertaining to the
acquisition of the Business Assets or Business by Foreland or materially
affecting the Business Assets or Business shall have been instituted or
threatened on or before the Closing.

         Section 6.06   Closing Date Review and Deliveries. On and as of the
Closing Date, PSC shall, together with one or more representatives of Foreland,
undertake a Closing Date review of PSC's books, records, and physical inventory.
The PSC shall have provided Foreland with a true, correct, and complete list and
amount, as of Closing Date, of:

                  (a) the Inventory;

                  (b) the Tangible Personal Property;

                  (c) PSC's Accounts Receivable with respect to the Business and
         a list of all shipped but unbilled shipments as of the Closing Date,
         including an aging thereof;

                  (d) PSC's trade accounts payable, accrued current liabilities,
         and the Assumed Obligations with respect to the Business;

                  (e) all unfilled customer orders with respect to the Business;
         and

                  (f) all shipments made with respect to the Business during the
         period from the date of this Agreement to the Closing Date;

none of which information shall, in Foreland's sole reasonable discretion, be
materially different from the information supplied by PSC in the Exhibits and
Schedules delivered to Foreland on or before January 15, 1998.

                                      -27-

<PAGE>   28


         Section 6.07   Closing Date Prorations. Foreland and PSC shall prorate,
as of the Closing Date, all charges and items of expense (including those
charges and items of expense that were prepaid and are unamortized) with respect
to the Business Assets that Foreland has either expressly assumed or is
otherwise obligated to pay in accordance with the terms of this Agreement, with
PSC bearing the proportionate expense attributable to the period prior to the
Closing Date in accordance with the terms of this Agreement. Within 30 days
after the Closing Date, Foreland and PSC shall jointly prepare or cause to be
prepared a schedule of prorations in accordance with this Agreement showing the
net amount due to Foreland or PSC, as the case may be. The net amount shown on
such schedule shall be paid to the party entitled thereto within 60 days after
the Closing Date. Any amounts subject to proration determined more than 30 days
after the Closing Date shall be prorated, as set forth above, by the end of each
calendar month and paid within 15 days thereafter.

         Section 6.08   Third Party Consents. Subject to the provisions of
Section 4.15, PSC shall have obtained consents of all third parties whose
consent is required to the transfer of any Business Assets or Business described
herein, including any consents reasonably requested by Foreland.

                                   ARTICLE VII
                 CONDITIONS PRECEDENT TO THE OBLIGATIONS OF PSC

         The obligation of PSC to sell the Business Assets is subject to
Foreland's satisfaction, at the time of Closing, of the conditions set out
below, except for any condition which has been waived in writing by PSC at or
prior to the Closing.

         Section 7.01   Performance by Foreland. Foreland shall have
substantially performed all the conditions of this Agreement, unless the
requirement has been waived in writing by PSC.

         Section 7.02   Corporate Approval. The board of directors and
shareholder(s) of Foreland shall have approved the transactions described in
this Agreement and resolutions setting forth those approvals shall have been
certified to PSC by an officer of Foreland.


                                  ARTICLE VIII
                   SURVIVAL OF REPRESENTATIONS AND WARRANTIES

         All representations and warranties made in Articles IV and V shall be
continuing and shall survive the Closing, but shall expire 24 months after the
Closing Date; provided, however, that if a claim for indemnification has been
asserted pursuant to Article VII prior to or as of the expiration date of such
24- month period, such representations and warranties shall remain in full force
and effect until full and complete resolution of such claim. Notwithstanding the
foregoing, however, the time for making a claim based upon such representation
or warranty shall expire 24 months after the Closing Date.


                                   ARTICLE IX
                             REGISTRATION OF SHARES

         Section 9.01   Obligations of Foreland. Whenever, in accordance with
the terms of this Agreement, Foreland is required to file a Registrable
Statement, it shall proceed diligently and in good faith to:

                                      -28-

<PAGE>   29


                  (a) Prepare and file with the SEC a Registration Statement
         with respect to such securities and use commercially reasonable best
         efforts to cause such Registration Statement to become effective, and
         keep such Registration Statement effective until all Option
         Consideration has been received by PSC from the sale of Shares or until
         the sale of such securities is no longer required to be registered by
         reason of rule 144(k) adopted under the Securities Act.

                  (b) Use commercially reasonable best efforts to prepare and
         file with the SEC such amendments and supplements to such Registration
         Statement and the prospectus used in connection with such Registration
         Statement as may be necessary to comply with the provisions of the
         Securities Act with respect to the disposition of all Shares during the
         period that Foreland is obligated to keep the Registration Statement
         effective.

                  (c) Furnish to the Holders such numbers of copies of a
         prospectus, including a preliminary prospectus, in conformity with the
         requirements of the Securities Act, and such other documents as they
         may reasonably request in order to facilitate the disposition of Shares
         on their behalf.

                  (d) Use commercially reasonable best efforts to register and
         qualify the securities covered by such Registration Statement under
         such other securities or blue sky laws of such jurisdictions as shall
         be reasonably requested by the Holders; provided that, Foreland is not
         required in connection therewith or as a condition thereto to qualify
         to do business or to file a general consent to service of process in
         any such states or jurisdictions.

                  (e) Notify PSC at any time when a prospectus relating to the
         resale of the Shares is required to be delivered under the Securities
         Act, of the happening of any event that limits PSC's ability to rely on
         such Registration Statement, including any event that results in the
         prospectus included in such Registration Statement, as then in effect,
         containing an untrue statement of a material fact or omitting to state
         a material fact required to be stated therein or necessary to make the
         statements therein not misleading in the light of the circumstances
         then existing; any stop order issued by the SEC or any state securities
         agency; or the suspension or limitation of any preemption or exemption
         from state registration or other qualification on which Foreland and
         PSC are relying. In any such event, Foreland shall use commercially
         reasonable best efforts to file an amendment to update the Registration
         Statement to the extent necessary or to take other remedial action.

                  (f) Cause all such Shares registered hereunder to be listed on
         each securities exchange on which similar securities issued by Foreland
         are then listed.

         Section 9.02.  Cooperation by PSC.

                  (a) PSC shall furnish to Foreland in writing such information
         and affidavits as Foreland may reasonably require from PSC in
         connection with any registration, qualification, or compliance with
         respect to such Shares. It shall be a condition precedent to the
         obligations of Foreland to take any action pursuant to this Agreement
         with respect to the Shares of any selling Holder that PSC shall furnish
         to Foreland such information regarding PSC, the Shares and other
         securities in Foreland held, and the intended method of disposition of
         such securities as shall be required to effect the registration of
         PSC's Shares.

                                      -29-

<PAGE>   30


                  (b) PSC, upon receipt of any notice from Foreland of the
         happening of any event of the kind described in paragraph (f) of
         section 3, will forthwith discontinue disposition of the Shares until
         PSC's receipt of the copies of the supplemented or amended prospectus
         contemplated by paragraph (f) of section 3 or until it is advised in
         writing by Foreland that the use of such prospectus may be resumed, and
         has received copies of any additional or supplemental filings that are
         incorporated by reference in such prospectus, and if so directed by
         Foreland, PSC will, or will request the managing underwriter or
         underwriters, if any, to, deliver to Foreland all copies, other than
         permanent file copies then in PSC's possession, of the prospectus
         covering such Shares current at the time of receipt of such notice.

                  (c) At the end of any periods during which Foreland is
         obligated to keep any Registration Statement current and effective as
         provided herein, PSC shall discontinue sales of securities pursuant to
         such Registration Statement upon receipt of notice from Foreland of its
         intention to remove from registration the securities covered by such
         Registration Statement which remain unsold, and PSC shall notify
         Foreland of the number of securities registered which remain unsold
         promptly after receipt of such notice from Foreland.

                  (d) PSC acknowledges that the registration of the sale of the
         Shares or the availability of an exemption from registration in certain
         states may impose certain limitations and conditions on the manner and
         nature of such sales. Foreland shall advise PSC in writing of such
         registration or exemption and the related limitations and conditions
         from time to time. PSC shall be solely responsible for PSC's own
         compliance with such limitations and conditions.

         Section 9.03   Expenses of Registration. All expenses, other than
underwriting discounts and commissions, incurred in connection with
registrations, filings or qualifications, including (without limitation) all
registration, filing and qualification fees, printer's and accounting fees, and
fees and disbursements of counsel for Foreland, shall be borne by Foreland.

         Section 9.04.  Delay of Registration. PSC shall not have any right to
obtain or seek an injunction restraining or otherwise delaying any such
registration as the result of any controversy that might arise with respect to
the interpretation or implementation of this Agreement.

         Section  9.05. Indemnification.  In the event any  Shares are included
in a Registration Statement in which PSC is included as a Selling Shareholder is
filed:

                  (a) To the extent permitted by law, Foreland will indemnify
         and hold harmless PSC, whose Shares are included in a Registration
         Statement, any underwriter (as defined in the Securities Act) for PSC,
         and each person, if any, who controls PSC or underwriter within the
         meaning of the Securities Act or the Exchange Act, against any losses,
         claims, damages, or liabilities to which they may become subject under
         the Securities Act, insofar as such losses, claims, damages, or
         liabilities arise out of or are based upon any of the following
         statements, omissions or violations (collectively, a "Violation"): (i)
         any untrue statement or alleged untrue statement of a material fact
         contained in such Registration Statement, including any preliminary
         prospectus or final prospectus contained therein or any amendments or
         supplements thereto,

                                      -30-

<PAGE>   31


         (ii) the omission or alleged omission to state therein a material fact
         required to be stated therein, or necessary to make the statements
         therein not misleading, or (iii) any Violation or alleged violation by
         Foreland of the Securities Act or any rule or regulation promulgated
         under the Securities Act; and Foreland will pay to each PSC,
         underwriter or controlling person, any legal or other expenses
         reasonably incurred by them in connection with investigating or
         defending any such loss, claim, damage, liability, or action; provided,
         however, that the indemnity agreement shall not apply to amounts paid
         in settlement of any such loss, claim, damage, liability, or action if
         such settlement is effected without the consent of Foreland (which
         consent shall not be unreasonably withheld), nor shall Foreland be
         liable in any such case for any such loss, claim, damage, liability, or
         action to the extent that it arises out of or is based upon a Violation
         which occurs in reliance upon and in conformity with written
         information furnished expressly for use in connection with such
         registration by any PSC, underwriter, or controlling person.

                  (b) To the extent permitted by law, PSC will indemnify and
         hold harmless Foreland, each of its directors, each of its officers who
         has signed the Registration Statement, each person, if any, who
         controls Foreland within the meaning of the Securities Act, any
         underwriter, any other Selling Shareholder selling securities in such
         Registration Statement and any controlling person of any such
         underwriter or other Selling Shareholder, against any losses, claims,
         damages, or liabilities to which any of the foregoing persons may
         become subject under the Securities Act or the Exchange Act, insofar as
         such losses, claims, damages, or liabilities (or actions in respect
         thereto) arise out of or are based upon any Violation, in each case to
         the extent (and only to the extent) that such Violation occurs in
         reliance upon and in conformity with written information furnished by
         PSC expressly for use in connection with such registration; and PSC
         will pay any legal or other expenses reasonably incurred by any person
         intended to be indemnified in connection with investigating or
         defending any such loss, claim, damage, liability, or action; provided,
         however, that the indemnity agreement shall not apply to amounts paid
         in settlement of any such loss, claim, damage, liability, or action if
         such settlement is effected without the consent of PSC, which consent
         shall not be unreasonably withheld. Notwithstanding the foregoing
         provision, PSC's indemnification obligation under this subparagraph
         shall not exceed the amount received by PSC on the sale of securities
         pursuant to the Registration Statement.

                  (c) Promptly after receipt by an indemnified party of notice
         of the commencement of any action (including any governmental action),
         such indemnified party will, if a claim in respect thereof is to be
         made against any indemnifying party under this paragraph, deliver to
         the indemnifying party a written notice of the commencement thereof,
         and the indemnifying party shall have the right to participate in, and
         to the extent the indemnifying party so desires, jointly with any other
         indemnifying party similarly noticed, to assume the defense thereof
         with counsel mutually satisfactory to the parties; provided, however,
         that an indemnified party (together with all other indemnified parties
         which may be represented without conflict by one counsel) shall have
         the right to retain one separate counsel, with the fees and expenses to
         be paid by the indemnifying party, if representation of such
         indemnified party by the counsel retained by the indemnifying party
         would be inappropriate due to actual or potential differing interest
         between such indemnified party and any other party represented by such
         counsel in such proceeding. The failure to deliver written notice to
         the indemnifying party within a reasonable time of the commencement of
         any such action, if prejudicial to its ability to defend such action,
         shall relieve

                                      -31-

<PAGE>   32


         such indemnifying party of any liability to the indemnified party under
         this paragraph, but the omission so to deliver written notice to the
         indemnifying party will not relieve it of any liability that it may
         have to any indemnified party otherwise than under this paragraph.

                  (d) If the indemnification provided for in this section is
         held by a court of competent jurisdiction to be unavailable to an
         indemnified party with respect to any loss, liability, claim, damage,
         or expense referred to therein, then the indemnifying party, in lieu of
         indemnifying such indemnified party hereunder, shall contribute to the
         amount paid or payable by such indemnified party as a result of such
         loss, liability, claim, damage, or expense in such proportion as is
         appropriate to reflect the relative fault of the indemnifying party on
         the one hand and of the indemnified party on the other in connection
         with the statements or omissions that resulted in such loss, liability,
         claim, damage, or expense as well as any other relevant equitable
         considerations. The relative fault of the indemnifying party and of the
         indemnified party shall be determined by reference to, among other
         things, whether the untrue or alleged untrue statement of a material
         fact or the omission to state a material fact relates to information
         supplied by the indemnifying party or by the indemnified party and the
         parties' relative intent, knowledge, access to information, and
         opportunity to correct or prevent such statement or omission.
         Notwithstanding the foregoing provision, the contribution obligation of
         PSC shall not exceed the amount received by PSC from the sale of
         securities pursuant to the Registration Statement.

                  (e) The obligations of Foreland and PSC under this paragraph
         shall survive the completion of any offering of Shares pursuant to a
         Registration Statement.

                                    ARTICLE X
                                 INDEMNIFICATION

         Section 10.01  By Foreland and PSC. Foreland, on the one hand, and PSC
on the other hand, each hereby agrees to indemnify and hold harmless the other
party against all claims, damages, losses, liabilities, costs, and expenses
(including settlement costs and any legal, accounting, or other expenses for
investigating or defending any actions or threatened actions) reasonably
incurred by the indemnified party in connection with each and all of the
following:

                  (a) any breach by the indemnifying party of any representation
         or warranty in this Agreement;

                  (b) any breach of any covenant, agreement, or obligation of
         the indemnifying party contained in this Agreement or any other
         agreement, instrument, or document contemplated by this Agreement; and

                  (c) any misrepresentation contained in any statement, exhibit,
         certificate, or schedule furnished by the indemnifying party pursuant
         to this Agreement or in connection with the transactions contemplated
         by this Agreement.

         Section 10.02  By PSC. The PSC agrees to indemnify and hold harmless
Foreland from any and all claims, damages, liabilities, costs, and expenses
(including settlement costs and any legal, accounting, or other expenses for
investigating or defending any actions or threatened actions) reasonably
incurred by the indemnified party in connection with each and all of the
following:

                                      -32-

<PAGE>   33


                  (a) any claims against, or liabilities or obligations of, PSC
         or against the Business or Business Assets not specifically assumed by
         Foreland pursuant to this Agreement which, in the aggregate, exceed
         $100,000; and

                  (b) any and all claims, damages, losses, liabilities, costs,
         and expenses including settlement costs and any legal, accounting, or
         other expenses for investigating or defending any actions or threatened
         actions) reasonably incurred by Foreland in connection with any
         warranty claim or product liability claim relating to (i) products
         manufactured or sold by PSC prior to the Closing Date, or (ii) PSC's
         business or operations prior to the Closing Date.

         Section 10.03  Claims for Indemnification. Whenever any claim shall
arise for indemnification hereunder, the party seeking indemnification (the
"Indemnified Party"), shall promptly notify, in writing, the party from whom
indemnification is sought (the "Indemnifying Party") of the claim and, when
known, the facts constituting the basis for such claim. In the event of any such
claim for indemnification hereunder resulting from or in connection with any
claim or legal proceedings by any party, the notice to the Indemnifying Party
shall specify, if known, the amount or an estimate of the amount of the
liability arising therefrom. The Indemnified Party shall not settle or
compromise any claim by a third party for which it is entitled to
indemnification hereunder without the prior written consent of the Indemnifying
Party, when shall not be unreasonably withheld, unless suit shall have been
instituted against it and the Indemnifying Party shall not have taken control of
such suit after notification thereof as provided in section 10.04 hereof.

         Section 10.04  Defense by Indemnifying Party. In connection with any
claim giving rise to indemnity hereunder resulting from or arising out any claim
or legal proceeding by a person who is not a party to this Agreement, the
Indemnifying Party, at its sole cost and expense may, upon written notice to the
Indemnified Party, assume the defense of any such claim or legal proceeding if
it acknowledges to the Indemnified Party in writing its obligations to indemnify
the Indemnified Party with respect to all elements of such claim. The
Indemnified Party shall be entitled to participate (but not control) the defense
of any such action, with its counsel and at its own expense. If the Indemnifying
Party does not assume the defense of any such claim or litigation resulting
therefrom within 30 days after the date such claim is made:

                  (a) the Indemnified Party may defend against such claim or
         litigation in such manner as it may deem appropriate, including, but
         not limited to, settling such claim or litigation, after giving notice
         of the same to the Indemnifying Party, on such terms as the Indemnified
         Party may deem appropriate; and

                  (b) the Indemnifying Party shall be entitled to participate in
         (but not control) the defense of such action, with its counsel and at
         its own expense. If the Indemnifying Party thereafter seeks to question
         the manner in which the Indemnified Party defended such third party
         claim or the amount or nature of any such settlement, the Indemnifying
         Party shall have the burden to prove by a preponderance of the evidence
         that the Indemnified Party did not defend or settle such third party
         claim in a reasonably prudent manner.

                                      -33-

<PAGE>   34


                                   ARTICLE XI
                                SPECIAL COVENANTS

         Section 11.01  Obligations After Closing. For a period of 18 months
following the Closing Date, Foreland shall have access to and the right to copy
all business records necessary to permit the preparation and audit of the
financial statements required by the Securities Act and/or the Exchange Act with
respect to the Business. The officers, directors, and employees will cooperate,
to the extent necessary, to assist in the preparation and audit of such
financial statements. In addition, PSC and Foreland shall have access to and the
right to copy all of the records of each other relative to the Business as maybe
necessary for preparation of employee or corporate tax returns, employee tax
reports, and customary accounting functions. Additionally, PSC and Foreland
shall agree to make available to the other, at reasonable times and upon
reasonable advance notice, relevant records and personnel in connection with the
preparation of a defense or the participation in a defense, participation in the
prosecution of claim or litigation, and negotiation of a settlement relating to
any pending, future, or threatened litigation, or government agency proceeding
(including a tax audit) involving the conduct of the Business before or after
the Closing, as the case may be, or in the perfection, registration, or
transferring of any copyright, trademark right, or other proprietary information
or right acquired by Foreland hereunder.

         Section 11.02  Waiver of Bulk Sale. Foreland hereby waives compliance
by PSC with the provisions of the Nevada Commercial Code applicable to bulk
transfers. 

         Section 11.03  Financial Statements Respecting the Business. PSC shall
utilize its best efforts to make available to Foreland PSC's financial 
statements, related information, and access to PSC's accountants and auditors, 
at Foreland's expense, to the extent reasonably required for Foreland to meet 
the requirements under applicable securities laws for providing financial 
statements on acquired businesses.


                                   ARTICLE XII
                              SPECIFIC PERFORMANCE

         The parties hereto agree the failure of any party to perform any
obligation or duty which each has agreed to perform shall cause irreparable harm
to the parties willing to perform the obligations and duties herein, which harm
cannot be adequately compensated for by money damages. It is further agreed by
the parties hereto an order of specific performance against a party in default
under the terms of this Agreement would be equitable and would not work a
hardship on the defaulting party. Accordingly, in the event of default by any
party hereto, the non-defaulting party, in addition to whatever other remedies
are available at law or in equity, shall have the right to compel specific
performance by the defaulting party of any obligation or duty herein.

                                  ARTICLE XIII
                            MISCELLANEOUS PROVISIONS

         Section 13.01  Costs. Foreland and PSC shall each pay all of their own
costs and expenses incurred or to be incurred by each in negotiating and
preparing this Agreement and in closing and carrying out the transactions
contemplated by this Agreement.

         Section 13.02  Notices. Any notice, demand, request, or other
communication under this Agreement shall be in writing and shall be deemed to
have been given on the date of service if personally served or by facsimile
transmission (if receipt is confirmed by the facsimile operator of the
recipient), or delivered by overnight courier service or on the third day after
mailing if mailed by certified mail, return receipt requested, addressed as
follows:

                                      -34-

<PAGE>   35


         If to PSC, to:            A. Howard McCollum
                                   President and CEO
                                   Petro Source Refining Corporation
                                   9801 Westheimer, Suite 900
                                   Houston, Texas 77042
                                   Telecopy: (713) 972-2035

         With copies to:           Harvey H. Cody, III
                                   Vice-President, General Counsel and Secretary
                                   Petro Source Refining Corporation
                                   9801 Westheimer, Suite 900
                                   Houston, Texas 77042
                                   Telecopy: (713) 972-2035

         If to Foreland, to:       Foreland Corporation
                                   Attn: N. Thomas Steele, President
                                   12596 West Bayaud, Suite 300
                                   Lakewood, Colorado  80226
                                   Telecopy:  (303) 988-3234

         With copies to:           James R. Kruse
                                   Kruse, Landa & Maycock, L.L.C.
                                   Eighth Floor, Bank One Tower
                                   50 West Broadway
                                   Salt Lake City, Utah 84101
                                   Telecopy:  (801) 531-7091

or such other addresses and facsimile numbers as shall be furnished in writing
by any party in the manner for giving notices hereunder, and any such notice,
demand, request, or other communication shall be deemed to have been given as of
the date so delivered or sent by facsimile transmission (if receipt is confirmed
by the facsimile operator of the recipient), three days after the date so
mailed, or one day after the date so sent by overnight delivery.

         Section 13.03  Governing Law. This Agreement shall be governed by,
enforced and construed under and in accordance with the laws of the United
States of America and, with respect to matters of state law, with the laws of
the state of Utah. Venue for all actions regarding this Agreement shall be in
Salt Lake County, Utah. The parties hereby submit to the personal jurisdiction
of such court for the purpose of resolving any dispute arising under this
Agreement.

         Section 13.04  Attorneys' Fees. In the event that any party institutes
any action or suit to enforce this Agreement or to secure relief from any
default hereunder or breach hereof, the breaching party or parties shall
reimburse the nonbreaching party or parties for all costs, including reasonable
attorneys' fees, incurred in connection therewith and in enforcing or collecting
any judgment rendered therein.

                                      -35-

<PAGE>   36


         Section 13.05  Schedules and Exhibits; Knowledge.  Whenever in any
section of this Agreement reference is made to information set forth in the
exhibits or the PSC Schedules, such reference is to information specifically set
forth in such exhibits or schedules and clearly marked to identify the section
of this Agreement to which the information relates. Whenever any representation
is made to the "knowledge" of any party, it shall be deemed to be a
representation that no officer or director of such party, after reasonable
investigation, has any knowledge of such matters.

         Section 13.06  Entire Agreement. This Agreement, together with the
documents to be delivered pursuant hereto, represent the entire agreement
between the parties relating to the subject matter hereof. There are no other
courses of dealing, understanding, agreements, representations, or warranties,
written or oral, except as set forth herein.

         Section 13.07  Survival; Termination.  The representations, warranties,
and covenants of the respective parties shall survive the Closing.

         Section 13.08  Form of Execution; Counterparts. A valid and binding
signature hereto or any notice or demand hereunder may be in the form of a
manual execution or a true copy made by photographic, xerographic, or other
electronic process that provides similar copy accuracy of a document that has
been executed. This Agreement may be executed in multiple counterparts, each of
which shall be deemed an original and all of which taken together shall be but a
single instrument.

         Section 13.09  Amendment or Waiver. Every right and remedy provided
herein shall be cumulative with every other right and remedy, whether conferred
herein, at law, or in equity, and may be enforced concurrently herewith, and no
waiver by any party of the performance of any obligation by the other shall be
construed as a waiver of the same or any other default then, theretofore, or
thereafter occurring or existing. At any time prior to the Closing Date, this
Agreement may be amended by a writing signed by all parties hereto, with respect
to any of the terms contained herein, and any term or condition of this
Agreement may be waived or the time for performance thereof may be extended by a
writing signed by the party or parties for whose benefit the provision is
intended.

         Section 13.10  Waiver of Jury Trial. Each party hereby (a) knowingly,
voluntarily, intentionally, and irrevocably waives, to the maximum extent not
prohibited by law, any right it may have to a trial by jury in respect of any
litigation based hereon, or directly or indirectly at any time arising out of,
under, or in connection with this Agreement or any transaction contemplated
hereby or associated herewith; and (b) acknowledges that it has been induced to
enter into this Agreement and the transactions contemplated hereby by, among
other things, the mutual waivers and certifications contained in this section.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed as of the date first above written.

                                       FORELAND CORPORATION


                                       By /s/ N. THOMAS STEELE
                                          ------------------------------
                                          N. Thomas Steele, President
 
                                      -36-

<PAGE>   37


                                       PETRO SOURCE CORPORATION


                                       By   /s/ HARVEY H. CODY III
                                          --------------------------------
                                                Harvey H. Cody III
                                                Vice President


                                       PETRO SOURCE REFINING CORPORATION


                                       By   /s/ HARVEY H. CODY III
                                          --------------------------------
                                                Harvey H. Cody III
                                                Vice President


                                       PETROSOURCE TRANSPORTATION



                                       By   /s/ HARVEY H. CODY III
                                          --------------------------------
                                                Harvey H. Cody III
                                                Vice President


                                      -37-

<PAGE>   38
                         EXHIBIT AND SCHEDULES OMITTED



<PAGE>   1


                                                                      EXHIBIT C


                                  AMENDMENT TO
                         OPTION AND PURCHASE AGREEMENT


         THIS AMENDMENT TO OPTION AND PURCHASE AGREEMENT (this "Amendment") is
entered into as of this 11th day of August, 1998, by and between Foreland
CORPORATION, a Nevada corporation ("Foreland") on the one hand, and PETRO
SOURCE CORPORATION, a Utah corporation ("Petro Source Corporation"), FORELAND
refining CORPORATION, a Texas corporation ("Foreland Refining"), and
PETROSOURCE TRANSPORTATION, a Utah corporation ("Petrosource Transportation"),
on the other (Petro Source Corporation, Foreland Refining, and Petrosource
Transportation are collectively referred to as "PSC"), based on the following:

                                    PREMISES

         A. Foreland, Petro Source Corporation, and Petrosource Transportation
are parties to that certain Option and Purchase Agreement dated December 31,
1997 (the "Option and Purchase Agreement"). Foreland Refining is a successor,
through merger, to Petro Source Refining Corporation, a Utah corporation
("Petro Source Refining"), which was also a party to the Option and Purchase
Agreement.

         B. In May 1998, Foreland exercised its option to purchase the Business
and Business Assets as defined in the Option and Purchase Agreement, and the
parties are obligated to close that transaction.

         C. The parties desire to amend the Option and Purchase Agreement in
order to modify certain provisions thereof to reflect changes and modifications
that have been agreed to since the execution of the Option and Purchase
Agreement, including the restructuring of the transaction as the acquisition of
certain assets of Foreland Refining, including the stock of Petrosource
Transportation, by a newly-formed, wholly-owned subsidiary of Foreland,
Foreland Asset Corporation ("Foreland Asset"), followed by the acquisition by
Foreland of Foreland Refining, rather than the sale of assets of Petro Source
Refining and Petrosource Transportation to Foreland as originally contemplated
by the Option and Purchase Agreement.

         D. The parties desire to ratify and reaffirm all of the terms and
conditions of the Option and Purchase Agreement, except those provisions
specifically modified by the terms of this Amendment.

                                   AGREEMENT

         NOW, THEREFORE, based on the foregoing premises, and in consideration
of the mutual covenants and agreements hereinafter set forth and the mutual
benefit to the parties to be derived herefrom, it is hereby agreed as follows:

         1. PSC Employees. The following provision will be added to the end of
Section 2.10 of the Option and Purchase Agreement:

                  (c) Foreland Refining or Petrosource Transportation will hire
         the PSC employees contemplated by Section 2.10(b) as of August 15,
         1998. Between the Closing Date and August 



<PAGE>   2


         14, 1998, such employees will remain in the employment of PSC and
         shall be made available to Foreland Refining or Petrosource
         Transportation pursuant to a Transition Services Agreement between the
         parties.

         2. The Purchase. Section 3.01 of the Option and Purchase Agreement is
amended to read in its entirety as follows:

                  Section 3.01 The Purchase. As a result of Foreland exercising
         its Option as set forth in Article II of the Option and Purchase
         Agreement, (i) Foreland Refining shall sell to Foreland Asset all of
         the issued and outstanding stock of Petrosource Transportation and the
         Business Assets set forth in subparagraphs (a), (b), (k), and (n)
         below that are owned by it; and (ii) after completion of the sale of
         assets contemplated by subparagraph (i) and the distribution of the
         proceeds from such sale to Petro Source Corporation, Petro Source
         Corporation shall sell, and Foreland shall purchase, all of the issued
         and outstanding stock of Foreland Refining. References in this
         Agreement to the acquisition of the Business and Business Assets shall
         be read to mean the acquisition of the Business and Business Assets
         through the purchase of the assets to be sold to Foreland Asset and
         the subsequent purchase of the issued and outstanding stock of
         Foreland Refining. The Business and Business Assets shall, subject to
         the Excluded Assets identified in Section 3.02, consist of the
         following:

                           (a) (i) all tangible personal property owned by PSC
                  and located at, or used in connection with, the operation of
                  the Eagle Springs Refinery, the Tonopah Refinery (excluding
                  the emulsifier and the two asphalt spreader trucks and
                  related equipment), (ii) the roofing asphalt equipment
                  located at the Fredonia Terminal (provided Foreland, at its
                  own expense, removes such equipment from PSC's property
                  within 24 months after the Closing Date, otherwise the
                  ownership of such equipment shall revert to Crown Asphalt
                  Distribution, L.L.C.), and (iii) the rights of PSC as lessee
                  of all tangible personal property leased, including the
                  equipment, tools, vehicles, furniture and fixtures, and
                  supplies described in Exhibit "A" (the "Tangible Personal
                  Property");

                           (b) all of PSC's rights as lessee or holder of
                  rights-of-way to the real property and all buildings and
                  improvements thereon on which the Eagle Springs Refinery and
                  the Tonopah Refinery are located, as more particularly
                  described in Exhibit "B" (the "Real Property");

                           (c) all inventory of PSC existing as of the
                  Effective Time which was purchased in furtherance of the
                  Business, as described in Exhibit "C" (the "Inventory");

                           (d) all of the notes and trade and other accounts
                  receivable associated with the Eagle Springs Refinery, the
                  Tonopah Refinery, or Petrosource Transportation existing as
                  of the Effective Time, as described in Exhibit "D" (the
                  "Accounts Receivable");

                           (e) all cash, cash equivalents, and prepaid expenses
                  held by Foreland Refining or Petrosource Transportation;

                           (f) all of PSC's rights under (i) those crude oil
                  and transmix purchase contracts and agreements described in
                  Exhibit "E" which were entered into by PSC in the ordinary
                  course of business and are executory, and (ii) all contracts
                  and agreements 




                                      -2-
<PAGE>   3


                  intended to facilitate the sale of asphalt or other refinery
                  products manufactured at the Eagle Springs or Tonopah
                  refineries (together, the "Contract Rights");

                           (g) lists of current and past (within the preceding
                  two years) customers and lists of prospective customers
                  (i.e., persons with whom PSC has discussed potential sales
                  and from whom PSC has received what PSC believes to be
                  serious expressions of interest) of the Business compiled by
                  PSC including, to the extent the same is in the possession of
                  PSC, the name, address, contact person, and telephone number
                  of each such customer or prospective customer (the "Customer
                  Lists"), set forth on Exhibit "F";

                           (h) all lists of current and past (within the
                  preceding two years) suppliers and all files, records, and
                  data used in connection with the Business;

                           (i) those prepaid expenses, fees, deposits, letters
                  of credit, or bonds with respect to the Business or Business
                  Assets, including those set forth on Exhibit "G," (the
                  "Prepaid Expenses");

                           (j) to the extent they are assignable, all federal,
                  state, or local licenses, permits, or approvals granted or
                  used in connection with the operation of the Business or the
                  Business Assets;

                           (k) all of PSC's rights under warranties covering
                  the Tangible Personal Property being transferred hereunder to
                  the fullest extent permitted by such warranties;

                           (l) all intellectual property of PSC necessary to the
                  operation of the Business, including the proprietary
                  scheduling software used in connection with Petrosource
                  Transportation and the right to use any trade secrets,
                  confidential or proprietary information, or general processes
                  used by PSC in the conduct of the Business, together with the
                  Melt Pac(TM) License from Petro Source Asphalt Company dated
                  as of May 31, 1998, all as described in Exhibit "H" (the
                  "Intellectual Property");

                           (m) the current telephone number(s) used in
                  connection with the Business at its locations in Eagle
                  Springs and Tonopah, Nevada, and telephone and other
                  directory listings used by PSC in the operation of the
                  Business other than the Salt Lake City numbers;

                           (n) to the extent permitted by the carrier without
                  financial assurances or continued obligation by Petro Source
                  Corporation, all contracts of insurance relating to the
                  Business or Business Assets and all claims, casualties, or
                  other occurrences prior to the Closing Date and prepaid
                  premiums or deposits related thereto, which policies are
                  specific to and separately maintained for the Business
                  Assets, as described in Exhibit "I" (the "Insurance
                  Policies");

                           (o) originals or copies of all accounting,
                  operating, management, and other business records in
                  documentary or electronic form relating to the Business or
                  Business Assets (provided, however, PSC may maintain a record
                  copy of any such items);

                           (p) the rights of PSC under all confidentiality,
                  non-competition, or similar agreements with present or former
                  employees, consultants, and others associated with PSC
                  insofar as related to the Business;



                                      -3-
<PAGE>   4



                           (q) the goodwill of PSC associated with the
                  Business, including the right to use the name "Petrosource
                  Transportation" but excluding the use of the name "Petro
                  Source Refining"; and

                           (r) all other assets of PSC used to carry out the
                  Business or part of the Business Assets not included in any
                  specific provision of the foregoing subsections existing as
                  of the Effective Time which are not excluded in section 3.02.

         3. Excluded Assets. Section 3.02 is amended by adding a new subsection
(h) to immediately follow subsection (g) thereof and to read as follows:

                           (h) the accounts receivable of Foreland Refining
                  that are not included in the amount set forth in paragraph
                  (c) of the Closing Statement, which accounts receivable shall
                  be, and are hereby, assigned to Petro Source Corporation.

         4. Assumed Obligations. Section 3.03 is amended to read in its
entirety as follows:

                  Section 3.03 Obligations. On the Closing Date, Foreland
         Refining and/or Petrosource Transportation shall be obligated on or
         Foreland Asset shall and does hereby assume, as the case may be, the
         following obligations and liabilities with respect to the Business and
         Business Assets for all periods subsequent to the Effective Time, in
         accordance with their respective terms and subject to the respective
         conditions thereof, such obligations and liabilities to be held or
         assumed by the entity identified by the parties at the Closing:

                           (a) all obligations of PSC under the leases or
                  rights-of-way set forth on Exhibit K-1 relating to the
                  Tangible Personal Property or the Real Property;

                           (b) all current trade accounts payable and other
                  current liabilities as of the Effective Time, that arose in
                  the ordinary course of the Business, all to be set forth in
                  Exhibit K-2 of the Closing Exhibits;

                           (c) all liabilities and obligations of PSC to be
                  paid or performed after the Effective Time under the
                  contracts and other agreements set forth on Exhibit K-3
                  relating to the Business and Business Assets being conveyed
                  hereunder;

                           (d) all liabilities in respect of any taxes for the
                  period beginning on the Effective Time; and any other
                  accrued, but unpaid liabilities for taxes, as of the
                  Effective Time and set forth in the Closing Schedule (real
                  and personal property taxes shall be prorated between
                  Foreland Refining and Petro Source Corporation as of the
                  Effective Time); and

                           (e) other obligations listed on Exhibit K-4.

         5. Excluded Liabilities. Section 3.04 of the Option and Purchase
Agreement is amended to read in its entirety as follows:




                                      -4-
<PAGE>   5


                  Section 3.04. Excluded Liabilities. Unless the liability is
         reflected on the Closing Statement or Adjustment Statement (as those
         terms are defined in Section 3.05A), neither Foreland, Foreland
         Refining, Foreland Asset, nor Petrosource Transportation shall assume
         or be obligated to pay, perform, or otherwise discharge the following:

                           (a) any liability or obligation of PSC direct or
                  indirect, known or unknown, absolute or contingent not
                  expressly assumed pursuant to section 3.03 or otherwise
                  pursuant to this Agreement;

                           (b) any liability arising out of the
                  employer/employee relationship between PSC and its employees
                  prior to the hiring of such employees by Foreland Refining or
                  Petrosource Transportation, including liabilities for accrued
                  bonuses, vacation, personal leave, or other amounts for the
                  benefit of employees of the Business (the "Employee
                  Benefits"); provided, however, Foreland Refining shall be
                  responsible for payments to Petro Source Corporation required
                  by the Transition Services Agreement;

                           (c) taxes for any period prior to the Effective Time
                  (real and personal property taxes shall be prorated between
                  Foreland Refining and Petro Source Corporation as of the
                  Effective Time);

                           (d) the accounts payable listed on Schedule 3.04;
                  and

                           (e) any liability as to which Petro Source
                  Corporation has indemnified Foreland, Foreland Refining,
                  Petrosource Transportation, and/or Foreland Asset pursuant to
                  the Environmental Indemnification Agreement.

         At the Closing, PSC shall deliver to Foreland, Foreland Asset,
Foreland Refining, and Petrosource Transportation full and complete releases
from any Excluded Liability for which they might be liable or to which the
Business or Business Assets may be subject, including releases of all financing
statements or other security documents, related to such Excluded Liability (the
"Releases").

         6. Amount of Purchase Price. Section 3.05 of the Option and Purchase
Agreement is amended to read in its entirety as follows:

                  Section 3.05 Amount of Purchase Price. The consideration
         payable by Foreland for the purchase (the "Purchase Price") of the
         Business and Business Assets shall be five million dollars
         ($5,000,000)(the "Base Price"), plus:

                           (a) the sum of the current assets (except to the
                  extent set forth in Section 3.02), as of May 31, 1998, as
                  determined in accordance with GAAP (except that finished
                  goods inventory will be valued at market), held by Foreland
                  Refining and/or Petrosource Transportation;

                           (b) a negative amount equal to the sum of the
                  current liabilities, as of May 31, 1998, as determined in
                  accordance with GAAP, for which Foreland Refining, Foreland
                  Asset, and/or Petrosource Transportation will continue to be
                  liable subsequent to the Closing, excluding, however, the
                  amount of $470,604 in intercorporate advances from Petro
                  Source Corporation to Petrosource Transportation (which
                  liability shall be paid prior to the Closing Date), and
                  further excluding the current portion of long term
                  liabilities or liabilities under operating leases that are
                  not properly attributable to the period prior to the
                  Effective Date in accordance with GAAP;




                                      -5-
<PAGE>   6



                           (c) the sum of all capital contributions made by
                  Petro Source Corporation to Foreland Refining and/or
                  Petrosource Transportation since December 31, 1997 (other
                  than the amount of $470,604 contributed to Petrosource
                  Transportation by Petro Source Corporation prior to the
                  Closing Date to enable Petrosource Transportation to repay
                  the same amount in a current account payable owing to Petro
                  Source Corporation);

                           (d) a negative amount equal to all distributions,
                  other than distributions of Excluded Assets or the cash
                  proceeds of the sale by Foreland Refining of certain of its
                  assets to Foreland Asset as contemplated by Section 3.01,
                  made by Foreland Refining and/or Petrosource Transportation
                  since May 31, 1998;

                           (e) a positive amount equal to capital expenditures
                  made by Foreland Refining's predecessor or Petrosource
                  Transportation between December 31, 1997, and May 31, 1998,
                  which added to the Business or Business Assets;

                           (f) a negative amount equal to the net proceeds from
                  the sale by Foreland Refining's predecessor or Petrosource
                  Transportation between December 31, 1997, and May 31, 1998,
                  of portions of the Business or Business Assets;

                           (g) any unpaid portion of the Option Consideration;
                  and

                           (h) 100,000 shares of Foreland Stock (the "Original
                  Shares"), the resale of which by PSC shall be covered by an
                  effective Registration Statement in accordance with Article
                  IX.

         7. Closing Amounts and Payments. A new Section 3.05A shall be added to
the Option and Purchase Agreement to read in its entirety as follows:

                  Section 3.05A Estimated Purchase Price. The calculation of
         the Purchase Price as contemplated by Section 3.05 of the Agreement
         shall be based on an estimate and adjusted to actual results as
         follows:

                           (a) Closing Statement. Petro Source Corporation has
                  prepared and delivered to Foreland a statement (the "Closing
                  Statement") setting forth estimates of the items specified in
                  subsections 3.05(a) through (f) (the "Estimated Adjustments
                  to Base Price"). The Closing Statement shall contain and
                  shall have attached thereto such supporting documentation and
                  other data as is reasonably necessary to provide a basis for
                  the Estimated Adjustments to Base Price shown therein. The
                  Estimated Adjustments to Base Price shall be based upon
                  actual information available to Petro Source Corporation at
                  the time of preparation of the Closing Statement and upon its
                  good faith estimates and assumptions. Foreland and its
                  representatives shall be provided access to all of PSC's
                  books, records, computer runs and other documents containing
                  information on which the Estimated Adjustments to Base Price
                  are based for the purpose of conducting a review as Foreland
                  may deem appropriate.

                           (b) Closing Purchase Price. The Purchase Price to be
                  used for the purposes of Closing (the "Closing Purchase
                  Price") shall be the Base Price, the items described in



                                      -6-
<PAGE>   7



                  subsections 3.05(g) and (h), and the Estimated Adjustments to
                  Base Price computed as follows:

                                    (i) If the Estimated Adjustments to Base
                           Price shown in the Closing Statement on the Closing
                           Date is negative, then the Purchase Price shall be
                           reduced by the amount of such Estimated Adjustments
                           to Base Price, or

                                    (ii) If the Estimated Adjustments to Base
                           Price shown in the Closing Statement is positive,
                           then the Purchase Price shall be increased by the
                           amount of such Estimated Adjustments to Base Price.

                           (c) Non-Cash Portion of Closing Purchase Price. The
                  Closing Purchase Price shall be paid in cash, except as
                  follows:

                                    (i) The unpaid portion of the Option
                           Consideration payable in accordance with
                           subparagraph 3.05(g) shall be paid through Petro
                           Source Corporation's continuing sale of Option
                           Shares in accordance with the provisions of
                           subparagraphs (d) through (f) of section 2.02,
                           except that Petro Source Corporation shall not be
                           limited as to the number of shares that can be sold
                           at any time or during any period as provided in
                           subparagraph (f) of such section, and any Option
                           Shares or the proceeds therefrom in excess of the
                           balance of the Option Consideration due shall be
                           returned to Foreland.

                                    (ii) The 100,000 Original Shares of
                           Foreland Stock identified in subparagraph 3.05(h),
                           which shall be registered in the name of Petro
                           Source Corporation and held and disposed of in
                           accordance with the terms and conditions of
                           subparagraph (e) of this section 3.05A..

                                    (iii) The net amount of the Estimated
                           Adjustments to Base Price shall be paid by the
                           delivery by Foreland to Petro Source Corporation at
                           the Closing of 763,602 shares of Foreland Stock (the
                           "Closing Shares"), which shall be registered in the
                           name of Petro Source Corporation and held and
                           disposed of in accordance with the terms and
                           conditions of subparagraph (e) of this section
                           3.05A.

                           (d) Payments and Deliveries. Prior to 11:00 a.m.
                  Houston time on the Closing Date, Foreland shall (i) pay an
                  amount equal to the Base Price for the account of Petro
                  Source Corporation by wire transfer of funds to Petro Source
                  Corporation's designated bank account, and (ii) deliver to
                  Petro Source Corporation one or more certificates for the
                  Original Shares and the Closing Shares. Petro Source
                  Corporation shall deliver or cause to be delivered the
                  Releases, as defined in Section 6.03A, together with all
                  conveyances, instruments, and documents to be delivered by or
                  on behalf of Petro Source Corporation at Closing.

                           (e) Delivery and Sale of Original Shares and Closing
                  Shares. The Original Shares and the Closing Shares shall be
                  issued, held, and disposed of as follows:

                                    (i) At the earliest practicable date, but
                           in any event by the earlier of the date that is (A)
                           10 days after the filing by Foreland of a report
                           containing




                                      -7-
<PAGE>   8



                           historical and pro forma combined financial
                           information respecting the purchased Business and
                           Business Assets pursuant to section 13 of the
                           Securities Exchange Act of 1934, or (B) 75 days
                           after the Closing Date, Foreland shall file, at its
                           sole cost, a Registration Statement on such form as
                           Foreland may select under the Securities Act
                           covering the resale of the Closing Shares and the
                           Original Shares, by and for the account of Petro
                           Source Corporation, which shall be named as a
                           selling shareholder in the Registration Statement,
                           all as more particularly set forth in Article IX
                           hereof. Foreland shall utilize its best efforts to
                           obtain the effectiveness of the Registration
                           Statement at the earliest practicable date and to
                           maintain its effectiveness until June 30, 1999. In
                           the event that all of the Closing Shares are not
                           sold by Petro Source Corporation under the
                           Registration Statement on or before December 31,
                           1998, Foreland shall pay interest to Petro Source
                           Corporation in cash equal to 5.0% per annum
                           multiplied by the difference between (i) the
                           Estimated Adjustments to Base Price less (ii) the
                           net proceeds realized by Petro Source Corporation
                           from the sale of such Closing Shares. Such amounts
                           shall be paid by Foreland to Petro Source
                           Corporation on the last day of each month beginning
                           with the last day of January 1999. The amount
                           described in the preceding sentence shall be paid in
                           addition to the interest Petro Source Corporation is
                           entitled to receive pursuant to the following
                           paragraph.

                                    (ii) Petro Source Corporation may cause to
                           be sold, at any time and from time-to-time and in
                           accordance with the Registration Statement, that
                           number of Closing Shares that yields proceeds, net
                           of brokerage and other usual and customary
                           transaction costs, the Estimated Adjustments to Base
                           Price, plus simple interest on the unpaid balance
                           from the Closing Date to the date such net proceeds
                           from such sale are available to the account of Petro
                           Source Corporation at the rate of 10% per annum (the
                           "Realizable Amount"), provided, however, that Petro
                           Source Corporation shall not sell or place an order
                           to sell in the Nasdaq SmallCap Market that number of
                           Closing Shares that would yield net proceeds of more
                           than $400,000 in any consecutive 30 day period
                           without Foreland's prior consent. There are no
                           restrictions on the sale of the Original Shares of
                           Foreland Stock delivered to Petro Source Corporation
                           at Closing, other than in accordance with the
                           Registration Statement.

                                    (iii) If the net proceeds from the sale of
                           Closing Shares are less than the Realizable Amount,
                           Petro Source Corporation may demand that Foreland
                           pay such deficiency, in which case Foreland shall,
                           within five days after such demand, at its option,
                           either pay such amount in cash in immediately
                           available funds or deliver to Petro Source
                           Corporation such additional shares of Common Stock
                           as Foreland estimates will yield net proceeds in the
                           amount sufficient for Petro Source Corporation to
                           realize in cash the Realizable Amount (the
                           "Additional Shares"). Should the proceeds from the
                           Additional Shares prove to be insufficient for Petro
                           Source Corporation to realize in cash the Realizable
                           Amount, Petro Source Corporation may demand that
                           Foreland pay such deficiency, in which case Foreland
                           shall, within five days after such demand, pay Petro
                           Source Corporation such deficiency in cash.






                                      -8-
<PAGE>   9



                                    (iv) If any Closing Shares or Additional
                           Shares remain unsold after the receipt by Petro
                           Source Corporation of the Realizable Amount, such
                           shares shall be returned to Foreland for
                           cancellation. If Closing Shares or Additional Shares
                           have been sold for net proceeds in excess of the
                           Realizable Amount, such excess proceeds shall also
                           be delivered to Foreland. Petro Source Corporation
                           agrees to provide Foreland with access to the
                           records concerning the sales of Closing Shares and
                           Additional Shares in order to permit Foreland to
                           verify the amount realized by Petro Source
                           Corporation on such sales.

         8.       Post Closing Adjustment. A new Section 3.06A shall be added to
the Option and Purchase Agreement to read in its entirety as follows:

                  Section 3.06A     Post Closing Adjustment.

                  (a) Adjustment Statement. As soon as practicable but in any
         event not later than 60 days following the Closing Date (the "Post
         Closing Date") Petro Source Corporation shall deliver to Foreland a
         statement (the "Adjustment Statement") setting forth the actual
         amounts of the items specified in subsection 3.05(a) through (f) based
         on the best information available to Petro Source Corporation as of
         the Post Closing Date. The Adjustment Statement shall be in such
         detail and shall contain or have attached thereto such supporting
         documentation as Foreland shall reasonably request. Foreland and its
         representatives shall be provided access to all of Petro Source
         Corporation's books, records, computer runs, and other documents
         containing information on which the Adjustment Statement is based for
         the purpose of conducting an audit thereof or such other review as
         Foreland may deem appropriate.

                  (b) Final Determination of Adjustments. The Adjustment
         Statement shall become final and binding on Petro Source Corporation
         and Foreland on the twentieth business day following the date the
         Adjustment Statement is received by Foreland, unless prior to such
         twentieth business day Foreland shall deliver to Petro Source
         Corporation notice of its disagreement with the contents of the
         Adjustment Statement, together with proposed changes thereto. If
         Foreland has delivered a notice of disagreement, then the Adjustment
         Statement will become final and binding upon written agreement between
         Foreland and Petro Source Corporation resolving all disagreements of
         Foreland. If the Adjustment Statement has not become final and binding
         by the thirtieth business day following its receipt by Foreland, then
         the Adjustment Statement shall be submitted to binding arbitration in
         accordance with the commercial rules of the American Arbitration
         Association, except that only one arbitrator shall be used. The fees
         and expenses of such arbitration shall be borne 50% by Petro Source
         Corporation and 50% by Foreland. The determination of the Adjustment
         Statement by such arbitration shall be final and binding upon Foreland
         and Petro Source Corporation.

                  (c) Adjustment Payments. On the day the Adjustment Statement
         becomes final and binding, Foreland and Petro Source Corporation shall
         make the following payments:

                           (i) If the mathematical sum of the actual amounts of
                  the items specified in subsections 3.05(a) through (h) as
                  shown in the final and binding Adjustment Statement, is less
                  than the mathematical sum of the items to specified in
                  subsections 3.05(a) through (h) in the Closing Statement,
                  then Petro Source Corporation shall pay Foreland an amount
                  equal to such deficiency.





                                      -9-
<PAGE>   10



                           (ii) If the mathematical sum of the actual amounts
                  of the items specified in subsections 3.05(a) through (h) as
                  shown in the final and binding Adjustment Statement, exceeds
                  the mathematical sum of the items to specified in subsections
                  3.05(a) through (h) in the Closing Statement, then Foreland
                  shall pay Petro Source Corporation an amount equal to such
                  excess.

         Any payments required by this Section 3.06A shall be by wire transfer
         to the account designated by the party to receive such payment.

         9. Representations, Covenants, and Warranties of Petro Source
Corporation. The lead-in paragraph to Article IV of the Option and Purchase
Agreement is amended by substituting "Petro Source Corporation" for "PSC."

         10. Organization. Section 4.01 of the Option and Purchase Agreement is
amended to read in its entirety as follows:

                  Section 4.01 Organization. Petro Source Corporation and
         Petrosource Transportation are each corporations duly organized,
         validly existing, and in good standing under the laws of the state of
         Utah. Foreland Refining Corporation is duly organized, validly
         existing, and in good standing under the laws of the state of Texas.
         Each of the corporations has the corporate power and are duly
         authorized, qualified, franchised, and licensed or shall have applied
         for licenses under all applicable laws, regulations, ordinances, and
         orders of public authorities to own all of their properties and assets
         and to carry on their business in all material respects as it is now
         being conducted. There is no jurisdiction in which any of such
         companies is not so qualified in which the character and location of
         the assets owned by it or the nature of the business transacted by it
         requires qualification, except where failure to do so would not have a
         material adverse effect on the business or properties of such company.
         The execution and delivery of this Agreement does not, and the
         consummation of the transactions contemplated by this Agreement in
         accordance with the terms hereof will not, violate any provision of
         such companies' articles of incorporation or bylaws. Each of such
         companies has taken all action required by law, its articles of
         incorporation, its bylaws, or otherwise to authorize the execution and
         delivery of this Agreement and the consummation of the transactions
         herein contemplated.

         11. Capitalization. A new Section 4.01A shall be added to the Option
and Purchase Agreement to read in its entirety as follows:

                  Section 4.01A Capitalization. The authorized capital of
         Foreland Refining consists of 100,000 shares of common stock, par
         value $0.01, of which 1,000 shares are issued and outstanding. All
         such issued and outstanding shares are legally issued, fully paid, and
         nonassessable, and not issued in violation of the pre-emptive or other
         right of any person. No shares of the authorized capital of Foreland
         Refining are subject to any right held by any other person or entity
         to require the issuance of additional shares on the exercise or
         conversion of options, warrants, convertible debentures, or any other
         such rights. The authorized capital of Petrosource Transportation
         consists of 50,000 shares of common stock, with no par value, of which
         1,000 shares are issued and outstanding. All such issued and
         outstanding shares are legally issued, fully paid, and nonassessable
         and are not issued in violation of the pre-emptive or other right of
         any person. Petrosource Transportation does not have any shares
         subject to issuance pursuant to the exercise or conversion of options,
         warrants, convertible debentures, or any other such rights held by any
         other person or entity.




                                     -10-
<PAGE>   11



         12. Financial Statements. A new subparagraph 4.03(a2) is added to read
as follows:

                  (a2) Included in Schedule 4.03 to this Agreement is also the
         unaudited balance sheet of Petrosource Transportation as of March 31,
         1998, and the related unaudited income statements for the three months
         ended March 31, 1998, and the years ended December 31, 1997, 1996,
         1995, and 1994, which present fairly the results of operations and the
         financial position of Petrosource Transportation for the periods and
         as of the dates indicated in all respects which would be material to
         an entity consisting of Petrosource Transportation and Foreland
         Refining, except, however, with respect to matters that are
         customarily presented in footnotes to financial statements. All such
         financial statements have been prepared in accordance with GAAP
         consistently applied throughout the periods involved, except that such
         financial statements have not been audited by independent outside
         accountants and do not contain the footnote disclosures required by
         GAAP.

         13. New Governmental Authorizations. A new Section 4.05A is added to
the Option and Purchase Agreement to read in its entirety as follows:

                  Section 4.05A New Governmental Authorizations. PSC has either
         transferred to Foreland Refining, or caused Foreland Refining to apply
         for and/or obtain, the licenses, franchises, permits, and other
         governmental authorizations that are legally required to enable it to
         conduct the Business in all material respects as it was conducted on
         the date of this Agreement. No governmental agency has declined to
         issue any such authorization or indicated that any such authorization
         may not be issued and Petro Source Corporation is not aware of any
         reason that Foreland Refining may not be able to obtain any such
         authorization. To the extent not obtained prior to Closing, Petro
         Source Corporation represents and warrants that Foreland Refining
         will, in the normal course of events, be able to obtain all of the
         required authorizations material to the operation of the Business.

         14. Ownership of Stock. A new Section 4.21A is added to the Option and
Purchase Agreement to read in its entirety as follows:

                  Section 4.21A Ownership of Stock. Petro Source Corporation
         hereby represents and warrants as follows: Petro Source Corporation is
         the sole beneficial and record owner of all of the issued and
         outstanding equity ownership of Foreland Refining which consists of
         1,000 shares of common stock, par value $0.01 per share (the "Foreland
         Refining Common Stock"). The Foreland Refining Common Stock is held
         solely by Petro Source Corporation, and, upon Closing, will be free
         and clear of any and all liens, encumbrances, or claims by any other
         person or entity. Foreland Refining is the sole record and beneficial
         owner of all of the equity interest in Petrosource Transportation,
         which consists of 1,000 shares of common stock, no par value (the
         "Petrosource Transportation Common Stock"). The Petrosource
         Transportation Common Stock is held solely by Foreland Refining and,
         upon Closing, will be free and clear of any and all liens,
         encumbrances, or claims by any other person or entity.

         15. Certain Liabilities or Contingencies. New Sections 4.21B and 4.21C
are hereby added to the Option and Purchase Agreement to read in its entirety
as follows:

                  Section 4.21B Undisclosed Liabilities or Contingencies. Petro
         Source Corporation represents and warrants that to Petro Source
         Corporation's Current Actual Knowledge, upon Closing, neither Foreland
         Refining nor Petrosource Transportation have, or are liable for, any



                                     -11-
<PAGE>   12
         liabilities or contingencies, whether known or unknown, other than the
         Assumed Obligations, and Petro Source Corporation will indemnify and
         hold Foreland Refining and Petrosource Transportation harmless from
         any such liabilities or contingencies if such are discovered in the
         future, whether or not known by Petro Source Corporation at the
         Closing Date.

                  Section 4.21C Certain Environmental Matters. Notwithstanding
         anything to the contrary in the Option and Purchase Agreement and this
         Agreement and without respect to the disclosures set forth in Schedule
         4.18 or elsewhere to the Option and Purchase Agreement, Petro Source
         Corporation shall indemnify Foreland, Foreland Refining Corporation,
         and Petrosource Transportation and hold them harmless from all
         environmental matters with respect to the Business or Business Assets
         prior to the Closing Date in accordance with the provisions of the
         Environmental Indemnity Agreement executed and delivered by the
         parties at Closing.

         16. Releases. A new Section 6.03A is hereby added to the Option and
Purchase Agreement to read in its entirety as follows:

                  Section 6.03A. Releases. Petro Source Corporation shall have
         delivered the Releases required by Section 3.04 to Foreland, such
         Releases to be in form suitable for filing and, if appropriate,
         recordation with the appropriate governmental offices.

         17. Closing Date Review and Deliveries. Section 6.06 of the Option and
Purchase Agreement is hereby amended to read in its entirety as follows:

                  Section 6.06 Closing Date Review and Deliveries. On and as of
         the Closing Date, PSC shall, together with one or more representatives
         of Foreland, undertake a Closing Date review of PSC's books, records,
         and physical inventory. Petro Source Corporation shall provide
         Foreland with a true, correct, and complete list and amount, as of the
         most recent practicable date of the following items and represents
         that there will be no material change in such items as of the Closing
         Date, except as may occur in the ordinary course of the Business:

                           (a)      the Inventory;

                           (b)      the Tangible Personal Property;

                           (c) PSC's Accounts Receivable with respect to the
                  Business and a list of all shipped but unbilled shipments as
                  of the Closing Date, including an aging thereof;

                           (d) PSC's trade accounts payable, accrued current
                  liabilities, and the Assumed Obligations with respect to the
                  Business;

                           (e) all unfilled customer orders with respect to the
                  Business;

                           (f) all shipments made with respect to the Business
                  during the period from the date of this Agreement to the
                  Closing Date;

                           (g) the Contract Rights;

                           (h) the Customer Lists;




                                     -12-
<PAGE>   13




                           (i) the Prepaid Expenses; and

                           (j) the federal, state, or local licenses held or
                  applied for by Foreland Refining or Petrosource
                  Transportation, including a summary of the status of all
                  pending applications.

         None of the above information shall, in Foreland's sole reasonable
         judgment, be different from the information supplied by PSC in the
         Exhibits and Schedules delivered to Foreland on or before January 15,
         1998, to an extent that, when all such differences are taken as a
         whole, result in the value of the Business and Business Assets being
         materially less than the value of such Business and Business Assets on
         January 15, 1998.

         18. Certain Other Matters. A new Section 6.09 is hereby added to the
Option and Purchase Agreement to read in its entirety as follows:

                  Section 6.09 Certain Other Matters. Foreland Refining and
         Petro Source Corporation have (i) entered into a transportation
         agreement for product shipped from Petro Source Corporation's
         Fredonia, Arizona facility, if Foreland Refining determines that it
         has equipment and personnel available; and (ii) executed and delivered
         the Environmental Indemnification Agreement.

         19. Indemnification. Article X of the Option and Purchase Agreement is
hereby amended by substituting "Petro Source Corporation" and "Petro Source
Refining Corporation" for "PSC" in the case of each and every occurrence of
"PSC" in Article X. Subsection 10.01(b) is further amended by adding the words
"or its affiliates" immediately following the words "or obligation of the
indemnifying party."

         20. Tax Election. Foreland shall timely and effectively file an
election pursuant to Internal Revenue Code Section 338(h)(10) to treat the
transaction as an asset purchase for tax purposes, and Foreland and Petro Source
Corporation shall record the transaction contemplated by this Agreement for tax
purposes consistent with such election. The parties also agree to mutually
cooperate in allocating the Purchase Price among the Business and Business
Assets acquired by Foreland and to treat the transaction consistent with such
allocation for tax purposes.

         21. Payment of Cost of Survey. On or before ten days following the
Closing, Foreland shall reimburse Petro Source Corporation for the cost incurred
by Petro Source Corporation in obtaining a survey of the properties pursuant to
the Option and purchase Agreement.

         22. Ratification of Option and Purchase Agreement. Except as
specifically provided by this Amendment, the parties hereby specifically ratify,
confirm, and adopt and binding and enforceable, all of the terms and conditions
of the Option and Purchase Agreement.




                                     -13-
<PAGE>   14



         IN WITNESS WHEREOF, the parties hereto have caused this Amendment to
be executed as of the date first above written.

                                         FORELAND CORPORATION


                                         By /s/ N. Thomas Steele, President

                                         PETRO SOURCE CORPORATION


                                         By /s/ A. Howard McCollum, President


                                         FORELAND REFINING CORPORATION


                                         By /s/ A Howard McCollum, President


                                         PETROSOURCE TRANSPORTATION


                                         By /s/ A. Howard McCollum, President





                                     -14-



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