PEASE OIL & GAS CO /CO/
8-K, 1997-01-17
CRUDE PETROLEUM & NATURAL GAS
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549



                                    FORM 8-K


                                 CURRENT REPORT


                     Pursuant to Section 13 or 15(d) of the
                         Securities Exchange Act of 1934


        Date of Report (Date of earliest event reported) January 10, 1997



                            PEASE OIL AND GAS COMPANY
              ----------------------------------------------------
             (Exact name of registrant as specified in its charter)




          Nevada                        0-6580                   84-0285520
 ---------------------------      -------------------        -------------------
(State or other jurisdiction     (Commission File No.)       (I.R.S. Employer
 of incorporation)                                           Identification No.)




751 Horizon Court, Suite 203, Grand Junction Colorado                 81506-8718
- -----------------------------------------------------                 ----------
     (Address of principal executive offices)                         (Zip Code)



Registrant's telephone number including area code:   (970) 243-8840


                                       1
<PAGE>


Item 2.  ACQUISITION OR DISPOSITION OF ASSETS.

     On January 10, 1997,  the  Registrant  completed the  acquisition,  under a
Purchase and Sale Agreement dated December 31, 1996, of a 7.8125% After Prospect
Payout  Working  Interest  ("APPO  WI") in a  producing  oil  and  gas  prospect
designated as the East Bayou Sorrel Prospect,  in Iberville  Parish,  Louisiana.
The oil and gas prospect is an approximately  4,500 acre prospect  operated by a
nonaffiliated  independent  oil and gas producer,  National  Energy Group,  Inc.
("NEGX"). An exploratory oil and gas well, drilled to approximately 13,550 feet,
was placed on production by the operator of the prospect in December  1996.  The
Registrant acquired the undivided APPO WI from three unrelated entities,  Atocha
Exploration,  Inc.,  Potosky Oil and Gas,  Inc. and Browning Oil Company,  Inc.,
following negotiations between the Registrant and the persons from whom the APPO
WI was acquired.  There is no material  relationship between any of such persons
and  the  Registrant  or any  of  its  affiliates,  directors,  officers  or any
associate  of  any  such  director  or  officer.  The  purchase  price  for  the
acquisition of the APPO WI was valued at $1.75 million  dollars and consisted of
$875,000 of  Registrant's  cash and 315,000  shares of the  Registrant's  common
stock. The number of shares issued for the purchase price may be adjusted in the
event that the reported market price for Registrant's  common stock is less than
$2.78 per share on the date that a registration statement registering the shares
issued in connection  with the  acquisition  to the sellers for resale under the
Securities  Act of 1933  becomes  effective.  The  source  of the  cash  used by
Registrant  to  complete  the  purchase  was  Registrant's  working  capital and
corporate funds.

     The  sellers  of  the  APPO  WI  held  the  interest  in the  prospect  for
exploration and development of the oil and gas resources. The Registrant intends
to continue to hold the assets acquired in connection with  Registrant's oil and
gas business and to participate in the  development of the asset  acquired.  The
prospect  contains a discovery well which was tested in June 1996 at a sustained
rate of 1,026  barrels of oil per day and 980 Mcf of natural  gas per day with a
flowing tubing pressure of 6,670 PSI on a 8/64" choke from a perforated interval
of 13,208 to 13,226 feet.  The well was put on  production  in December 1996 and
has maintained flow rates similar to those  experienced  during the test period.
The  interest  acquired  by the  Registrant  is  essentially  a carried  working
interest  in  the  prospect  until  all  costs  associated  with  acquiring  and
developing  the prospect are recovered  from  production.  Through  December 31,
1996,  approximately $6.1 million had been spent on the prospect  consisting of:
(a) $3.9 million for the drilling, completing and testing of the discovery well;
(b) $1.1 million on a  production  platform;  and (c) $1.1  million  incurred in
connection  with an  acquisition  of  existing  oil and gas  leases  within  the
prospect.  There will be at least one more well drilled within the prospect with
an estimated cost of $3.9 million.  All these costs,  as well as any other costs
that may be incurred in the future for the acquisition,  drilling or development
of oil and gas  interests  within the prospect,  must be recovered  prior to the
Registrant  sharing in any operating expenses and revenues incurred or generated
from the existing well or other wells that may be drilled and  developed  within
the prospect.


                                       2
<PAGE>



Item 7.   FINANCIAL STATEMENTS AND EXHIBITS.

     (a)  Financial statements of businesses acquired.

          Registrant is a Small  Business  Issuer.  Under Item  310(c)(3)(i)  of
     Regulation S-B,  financial  statements  relating to the assets acquired are
     not required.

     (b)  Pro forma financial information.

          Registrant is a Small Business Issuer. Under Item 310(d) of Regulation
     S-B, pro forma information relating to the acquisition of the assets is not
     required.

     (c)  Exhibits.

          Exhibit 10.27 Purchase and Sale Agreement dated December 31, 1996.







                                       3
<PAGE>



                                   SIGNATURES

     Pursuant to the  requirements  of the Securities  Exchange Act of 1934, the
Registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.

Date:    January 16, 1997

                                             PEASE OIL AND GAS COMPANY



                                             By /s/ Willard H. Pease, Jr.
                                                --------------------------------
                                                Willard H. Pease, Jr., President









                                       4
<PAGE>


                                  EXHIBIT INDEX


Exhibit           Description                                           Page No.
- -------           -----------                                           -------
10.27             Purchase and Sale Agreement dated December 31, 1996.     6















                                       5

                           PURCHASE AND SALE AGREEMENT

     THIS  PURCHASE  AND SALE  AGREEMENT  (this  "Agreement")  is  entered  into
effective  as of the  "Agreement  Date,"  as that term is  hereinafter  defined,
between ATOCHA EXPLORATION, INC., a Louisiana corporation, 1201 Louisiana, Suite
1050, Houston,  Texas 77002,  BROWNING OIL COMPANY,  INC., a Nevada corporation,
8080 N. Central Expressway,  Suite 780, Dallas, Texas 75206, and POTOSKY OIL AND
GAS, INC., a Texas  corporation,  10410  Memorial  Drive,  Houston,  Texas 77024
(collectively  "Sellers") and PEASE OIL AND GAS COMPANY,  a Nevada  corporation,
751 Horizon Court,  Suite 203, Grand  Junction,  Colorado  81506-8718  ("Buyer")
(Sellers and Buyer, when referred to collectively,  are hereinafter  referred to
as the "Parties").
                                                     
                                   ARTICLE I
                                PURCHASE AND SALE

     Subject to the terms and conditions of, and for the consideration set forth
in,  this  Agreement,  Sellers  agree to sell and  convey  and  Buyer  agrees to
purchase and pay for, effective as of midnight,  Central Standard Time, December
31, 1996 (the  "Effective  Time"),  SUBJECT TO THE  EXCLUSION OF THE  OVERRIDING
ROYALTY   INTEREST  AS  PROVIDED  FOR  ON  EXHIBIT  "A,"  the   following   (the
"Properties"):

          1.1 Oil and Gas Properties.  All properties  described on Exhibit "A,"
whether  such  properties  are in  the  nature  of  servitudes,  fee  interests,
leasehold interests, licenses,  concessions,  working interests, farmout rights,
other contractual  rights,  royalty,  overriding  royalty,  other non-working or
carried interests, operating rights or other mineral rights of every nature, and
any rights that arise by operation of law or otherwise,  in all  properties  and
lands pooled,  unitized,  communitized or consolidated with such properties (the
"Oil and Gas Properties").

          1.2 Wells.  All oil,  condensate  or natural gas wells,  water  source
wells, and water and other types of injection  wells,  either located on the Oil
and Gas Properties or held for use in connection with the Oil and Gas Properties
under a Surface Contract (as hereinafter defined), whether producing, operating,
shut-in or temporarily abandoned,  but excluding all permanently abandoned wells
and all wells that,  prior to the Effective  Time, must be plugged and abandoned
in accordance  with the rules or regulations  of any  regulatory  authority (the
"Wells").


<PAGE>


          1.3 Severed Substances. All severed crude oil, natural gas, casinghead
gas,  drip  gasoline,   natural  gasoline,   petroleum,   natural  gas  liquids,
condensate,  products,  liquids  and other  hydrocarbons  and other  minerals or
materials of every kind and description produced from the Oil and Gas Properties
and either (a) in storage  tanks at the  Effective  Time or (b) sold at or after
the Effective  Time (the  "Hydrocarbons").

          1.4 Surface Contracts. All leases, easements, privileges, right-of-way
agreements,  licenses or other  agreements  relating to the use or  ownership of
surface and subsurface  properties and structures  that are used or held for use
in connection with the exploration and production of Substances from the Oil and
Gas Properties (the "Surface Contracts").

          1.5 Equipment. All physical facilities or interests therein, including
but not limited to platforms,  tanks and tank  batteries,  gas plants,  disposal
facilities,  storage  facilities,  buildings,  structures,  field separators and
liquid  extractors,   compressors,   pumps,  pumping  units,  valves,  fittings,
machinery and parts, engines,  boilers, meters,  apparatus,  implements,  tools,
appliances,  cables, wires, towers,  casing, tubing and rods, gathering lines or
other pipelines,  field gathering  systems,  field offices and the furniture and
fixtures and equipment of every type and description to the extent that the same
are used or held for use in  connection  with the  ownership or operation of the
properties described in Sections 1.1 through 1.4, inclusive,  whether located on
or off such properties (the "Equipment").

          1.6  Information and Data. All (a) abstracts,  title  opinions,  title
reports, title policies, lease and land files, surveys, analyses,  compilations,
correspondence,   filings  with  regulatory  agencies,  tax  returns,  financial
compilations,  and other documents and instruments  that in any manner relate to
the properties  described in Sections 1.1 through 1.5,  inclusive;  (b) magnetic
tapes or reproducible  copies of computer  software and computer  databases that
are owned by or licensed to Sellers that in any manner relate to the  properties
described in Sections 1.1 through 1.5, inclusive;  (c) geological,  engineering,
exploration,  production and other  technical data,  magnetic field  recordings,
digital   processing   tapes,   field   prints,   summaries,    reports,   maps,
interpretations,   studies   and  other   analyses,   whether   written   or  in
electronically  reproducible  form, that are in the possession of Sellers and in
any manner relate to the properties  described in Section 1.1; and (d) all other
books, records,  files and magnetic tapes containing  financial,  title or other
information  that are in the  possession  of Sellers and in any manner relate to
the properties described in Sections 1.1 through 1.5, inclusive (the "Data").

                                       2

<PAGE>



          1.7 Contracts. All contracts,  commitments,  agreements,  arrangements
that in any way relate to the properties  described in Sections 1.1 through 1.6,
inclusive,  including  the  production,   storage,  treatment,   transportation,
processing,  purchase,  sale or other disposal of  Hydrocarbons  therefrom or in
connection therewith, and any and all amendments, ratifications or extensions of
the foregoing, together with (i) all rights, privileges, and benefits of Sellers
thereunder  arising  on or after  the  Effective  Time and (ii) all  claims  for
take-or-pay or other similar payments arising before or after the Effective Time
that have not been disclosed in any Exhibit (the "Contracts").

          1.8  Payment  Rights.  All  (a)  accounts,   instruments  and  general
intangibles  (as such  terms  are  defined  in the  Uniform  Commercial  Code of
Louisiana)  and (b) liens and security  interests in favor of Sellers  under any
law, rule or  regulation  or under the Contracts  arising from the sale or other
disposition at or after the Effective Time of any of the properties described in
Sections 1.1 through 1.7, inclusive (the "Payments Rights").

                                   ARTICLE II
                                 PURCHASE PRICE

     2.1  Purchase  Price;  Base  Purchase  Price.  The  purchase  price for the
Properties  shall  be One  Million  Seven  Hundred  Fifty  Thousand  and  No/100
($1,750,000.00)  Dollars (the "Base Purchase Price"), which shall be adjusted as
provided in Article 2.2 hereof to arrive at the "Final Purchase Price."

     2.2 Final Purchase  Price.  In arriving at the "Final  Purchase  Price" the
Base Purchase Price shall be adjusted  downward by the cost incurred by Buyer in
bringing  title to the Oil and Gas  Properties  forward by updating title to the
working  interest  covered by the Title  Opinions  furnished to Buyer by Sellers
covering the lands of Schwing,  Inc.,  Wilbert Funeral Home, Inc., and Wilbert's
Sons Ltd.  Partnership,  and the State Leases  covering  portions of Tract 29181
containing  10 acres and 141 acres,  respectively,  awarded to National  Energy,
Inc., and W & T Offshore,  Inc.,  respectively,  and by providing  copies of the
assignments  consummating  the acquisition of the Bayou Sorrel Field by National
Energy Group, Inc., from PANACO, Inc. and W & T Offshore, Inc. The Base Purchase
Price as adjusted  pursuant to this  Article  shall be referred to as the "Final
Purchase Price."

                                       3

<PAGE>


                                                    ARTICLE III
                                          REPRESENTATIONS AND WARRANTIES

     3.1  Representations  and  Warranties  of Sellers.  Sellers  represent  and
warrant to Buyer the following:

          3.1.1 Organization.  Atocha  Exploration,  Inc., is a corporation duly
organized,  validly existing and in good standing under the laws of the State of
Louisiana  and is duly  qualified  to  carry  on its  business  in the  State of
Louisiana.  Browning Oil Company, Inc., is a corporation duly organized, validly
existing and in good standing  under the laws of the State of Nevada and is duly
qualified  to carry on its business in the State of  Louisiana.  Potosky Oil and
Gas,  Inc.,  is a  corporation  duly  organized,  validly  existing  and in good
standing under the laws of the State of Texas.

          3.1.2 Corporate Power. Sellers have full corporate power and authority
under the laws of their respective states to conduct their business as presently
conducted,  to perform their obligations under this Agreement,  and are entitled
to own the Properties.

          3.1.3 Conflicts. The consummation of the transactions  contemplated by
this  Agreement  will not violate,  be in conflict with, or constitute a default
under any  provision  of the  articles  of  incorporation,  bylaws or  governing
documents of any Seller,  any  provision of any agreement or instrument to which
or by which  any  Seller is a party or by which it is  bound,  or any  judgment,
decree, judicial or administrative order, award, writ, injunction, statute, rule
or regulation applicable to any Seller or the Properties.

          3.1.4 Authorization.  The execution,  delivery and performance of this
Agreement and the  transactions  contemplated  hereby have been duly and validly
authorized by all necessary  corporate action,  including any necessary board or
shareholder  approval,  by Sellers or any third parties  owning any equitable or
beneficial interest in the Properties.

          3.1.5  Enforceability.  This  Agreement  has been  duly  executed  and
delivered  on  behalf  of  Sellers,  and at  the  "Closing,"  as  that  term  is
hereinafter  defined,  all documents and instruments required to be executed and
delivered by Sellers in order to  consummate  the purchase and sale provided for
in to this Agreement  shall be executed and delivered.  This Agreement does, and
such  documents  and  instruments  shall,  constitute  legal,  valid and binding
obligations of Sellers enforceable in accordance with their terms.

                                       4

<PAGE>



          3.1.6 Broker's Fees. Sellers have incurred no liability, contingent or
otherwise,   for  broker's  or  finder's  fees  relating  to  the   transactions
contemplated  by this  Agreement  for which Buyer shall have any  responsibility
whatsoever.

          3.1.7  Litigation  and Claims.  To the best of  Sellers'  information,
knowledge  and belief,  no lawsuit,  action,  claim,  demand,  filing,  cause of
action,  administrative  proceeding or other litigation or proceeding is pending
or  threatened  before any court or  governmental  agency as of the date of this
Agreement that might result in impairment,  loss or diminution of Sellers' title
to the Properties or hinder or impede their  ownership or operation.  No written
or oral notice from any governmental  body or any other entity has been received
by any Seller (i) claiming any violation or repudiation of the Properties or any
violation  of any law or any  environmental,  conservation  or other  ordinance,
code,  rule or regulation or (ii)  requiring,  or calling  attention to the need
for, any work,  repairs,  construction,  alterations or  installations  on or in
connection with the Properties with which such Seller has not complied.

          3.1.8 Evaluation  Data. To the best of Sellers'  knowledge and belief,
each of the maps, and all of the geological and production  data,  pricing data,
reserve data or other data or documentation  heretofore  furnished by Sellers to
Buyer ("Evaluation  Data"), was complete,  and the information  reported therein
was correct, in all material respects as of the date of such delivery.

          3.1.9 Default. To the best of Sellers' knowledge and belief, no Seller
is in default or violation of (a) any law, order, writ,  injunction,  ordinance,
code, rule, regulation or decree of any governmental body, agency or court or of
any commission or other administrative agency or (b) any agreement or obligation
to which it is a party or by which it is bound or to which it or the  Properties
may be subject. With respect to the ownership, operation, production and sale of
hydrocarbons and carrying on the business of Sellers, Sellers have complied with
all laws, rules and regulations applicable thereto.

          3.1.10 Tax Compliance.  To the best of Sellers'  knowledge and belief,
Sellers have timely filed or caused to be filed all  federal,  state,  local and
foreign tax and  information  returns  required under all  applicable  statutes,
rules and regulations,  and all taxes with respect to the Properties (other than
those being contested in good faith for which adequate  provisions will be made)
shown on said  returns to be due and  additional  assessments  which are due and
payable have been paid.

                                       5
<PAGE>


          3.1.11  Marketable  Title.  Sellers have or will have at the Effective
Time,  Marketable  Title to the Properties.  "Marketable  Title" shall mean such
title as is free and clear of all Encumbrances other than Permitted Encumbrances
and which entitles  Sellers to (i) a Net Revenue Interest in each well, lease or
unit no less than,  and (ii) a Working  Interest in each well,  lease or unit no
greater than, the relevant  percentages set forth in Exhibit "A," throughout the
productive life of such well, lease or unit, free of Permitted Encumbrances. The
foregoing  provisions of this  paragraph  notwithstanding,  the  Assignment,  as
attached  hereto,  shall warrant title by, through,  and under Sellers,  but not
otherwise.  "Encumbrance"  shall mean any  mortgage,  lien,  security  interest,
pledge, charge, encumbrance, claim, limitation,  irregularity, burden or defect.
"Permitted Encumbrances" shall mean any or all of the following:

          (a)  Encumbrances  that arise  under  operating  agreements  to secure
payment of amounts not yet delinquent and are of a type and nature  customary in
the oil and gas industry;

          (b)  Encumbrances  that arise as a result of pooling  and  unitization
agreements,  declarations,  orders or laws to secure  payment of amounts not yet
delinquent;

          (c)  Encumbrances  securing  payments to mechanics and materialmen and
Encumbrances  securing payment of taxes or assessments that are, in either case,
not yet delinquent or, if delinquent,  are being  contested in good faith in the
normal course of business;

          (d)  lessor's  royalties,   overriding  royalties,   division  orders,
reversionary  interests and other similar  burdens that do not operate to reduce
the Net Revenue  Interest of Sellers in and to the  Properties  to less than the
amount set forth in Exhibit "A";

          (e)  consents  to  assignment  by  governmental  authorities  that are
obtained on or prior to the Closing Date;

          (f) conventional rights of reassignment obligating Sellers to reassign
their  interests in any portion of the  Properties to a third party in the event
it intends to release or abandon such  interest  prior to the  expiration of the
primary term or other termination of such interest;


                                       6

<PAGE>


          (g) easements,  rights-of-way,  servitudes,  permits,  surface leases,
surface use  restrictions  and other surface uses and impediments on, over or in
respect of any of the  Properties  that,  as of the  Effective  Time,  appear of
record in the public  records of the parish  wherein the Properties are located,
provided that they do not interfere  materially  with the ownership,  operation,
value or use of the Properties, taken as a whole; and
 
          (h) rights reserved to or vested in any  municipality or governmental,
tribal,  statutory  or  public  authority  to  control  or  regulate  any of the
Properties  in any  manner,  and all  applicable  laws,  rules  and order of any
municipality or governmental or tribal authority.

          3.1.12  Sellers'  Interest.  The  interests  described  in Exhibit "A"
constitute all of Sellers'  interest in the Oil and Gas Properties and Wells, it
being Sellers' intent to sell to Buyer all of Sellers' right, title and interest
in the Oil and Gas Properties and Wells,  except as otherwise  specifically  set
forth in Exhibit "A".

          3.1.13  Status of the Leases.  To the best of Sellers'  knowledge  and
belief, with respect to the Leases described in Exhibit "A" (the "Leases"):

          (a) The Leases  have been  maintained  according  to their  terms,  in
compliance with the agreements to which the Leases are subject;

          (b) The Leases are  presently in full force and effect,  and all other
oil and gas leases  covering the lands  described in the Leases have expired and
are no longer of any force or effect;

          (c)  Sellers  and  their  predecessors-in-title,   or  the  respective
designees of any of them, have made or caused to be made all payments, including
royalties, delay rentals and shut-in royalties provided for in the Leases;

          (d) No other  Party with an  interest in any of the Leases at any time
is in breach or default with respect to any of its obligations thereunder;

          (e) There has not occurred any event, fact or circumstance  which with
the lapse of time or the giving of notice, or both, would constitute a breach or
default on behalf of any of the Sellers, any of their  predecessors-in-title  or
any other parties;

          (f) Neither Sellers nor any other party with an interest in any of the
Leases  nor any of the  Lessors  at any time have  given or  threatened  to give
notice  of any  action to  terminate,  cancel  rescind  or  procure  a  judicial
reformation of any of the Leases or any provisions thereof.


                                       7
<PAGE>

          3.1.14 Contracts and Agreements. To the best of Sellers' knowledge and
belief,  all of the  contracts or  agreements  which will burden or encumber the
Properties  or to which  the  Properties  will be  subject  after  Closing  (the
"Contracts") are set forth on Exhibit "A." To the best of Sellers' knowledge and
belief, all of the Contracts and other obligations of Sellers that relate to the
Properties are in full force and effect.  To the best of Sellers'  knowledge and
belief,  no Seller or any other  party to the  Contracts  (a) is in breach of or
default, or with the lapse of time or the giving of notice, or both, would be in
breach or default,  with  respect to any of its  obligations  thereunder  to the
extent  that such  breaches  or  defaults  have an adverse  impact on any of the
Properties or (b) has given or threatened to give notice of any default under or
inquiry into any possible default under, or action to alter, terminate,  rescind
or procure a judicial  reformation  of any Contract.  Sellers do not  anticipate
that any other  party to a  Contract  will be in breach of or  default  under or
repudiate  any of its  obligations  thereunder to the extent that such breach or
default will have an adverse impact on any of the Properties.  The Contracts are
consistent  with,  and do not give rise to breaches of the  representations  and
warranties of Sellers herein.

          3.1.15  Operations.  To the best of Sellers' knowledge and belief, all
of the Wells have been drilled and completed within the boundaries of the Leases
or within the limits otherwise permitted by contract, pooling or unit agreement,
and by law, and all drilling and completion,  and plugging and  abandonment,  of
the  Wells  and all  development  and  operations  on the  Properties  have been
conducted in compliance with all applicable laws, ordinances, rules, regulations
and permits,  judgments, orders and decrees of any court or governmental body or
agency.  No  Well  is  subject  to  any  penalty  or  liability  because  of any
overproduction or any other violation of applicable laws, rules,  regulations or
permits or  judgments,  orders or decrees  of any  court,  governmental  body or
agency  which  would  prevent  any of the Wells from being  entitled to its full
legal and regular allowable.

          3.1.16  Accuracy  of  Representations  and  Warranties.  None  of  the
statements,  representations  or warranties made by Sellers in this agreement or
in any exhibit or certificate  delivered pursuant to this Agreement contains any
untrue  statement  or any  material  fact or omits to state  any  material  fact
necessary  to be  stated  in order to make the  statements,  representations  or
warranties contained herein or therein not misleading. Sellers have no knowledge
or  belief  of any  matter  which  materially  and  adversely  affects  (or  may
materially and adversely affect) the operations,  prospects,  value or condition
of any of the Properties,  which has not been set forth in this Agreement or the
Exhibits hereto.

                                       8
<PAGE>


          3.1.17 AFE's and Commitments. Except as otherwise indicated on Exhibit
"A",  there are no  authorizations  for  expenditure  ("AFE's") or other oral or
written  commitments  ("Commitments")  to drill or rework  Wells or for  capital
expenditures pursuant to any of the Contracts, applicable to the Properties.

          3.1.18  Approvals  and  Preferential  Rights.  There are no  approvals
required  to be  obtained  by  Sellers  as a  result  of this  Agreement  or the
transactions  provided for herein,  except those that are obtained by Sellers at
or prior to Closing,  and there are no preferential  purchase rights that affect
the  Properties,  except those for which Sellers  provide waivers at or prior to
Closing.

          3.1.19 Production Burdens,  Taxes,  Expenses and Revenues. To the best
of Sellers'  knowledge  and belief,  all  rentals,  royalties,  excess  royalty,
overriding royalty interests and other payments due under or with respect to the
Properties  have been properly and timely paid. All ad valorem  taxes,  property
taxes, production taxes, severance taxes and other taxes based on or measured by
the ownership of the Properties or the production of Hydrocarbons therefrom have
been  properly and timely  paid.  All  expenses  payable  under the terms of the
Contracts and  attributable to the Properties have been properly and timely paid
except for such expenses as are being currently paid prior to delinquency in the
ordinary  course of business.  All of the proceeds from the sale of Hydrocarbons
are being  properly and timely paid to Sellers by the  purchasers  of production
without suspense.

          3.1.20  Pricing.  To the best of Sellers'  knowledge  and belief,  the
prices being  received for the  production  of  Hydrocarbons  do not violate any
Contract, law or regulation.  Where applicable,  all of the Wells and production
of  Hydrocarbons  therefrom  have been  properly  classified  under  appropriate
governmental regulations.

          3.1.21 Gas  Regulatory  Matters.  All  necessary  rate and  collection
filings and all necessary applications for well determinations under the Natural
Gas Act of 1938, as amended, the Natural Gas Policy Act of 1978, as amended, and
the rules and  regulations  of the Federal  Energy  Regulatory  Commission  (the
"FERC")  thereunder  have been  filed  with the  appropriate  state and  federal
agencies,  and each such  application  has been approved by or is pending before
the appropriate  state or federal agency.  "Good Faith  Negotiations"  have been
neither initiated nor waived, nor has the right to initiate such re-negotiations
been compromised in any manner,  pursuant to FERC Order No. 451 or any revisions
thereof,  or any  orders  predicated  thereon,  under  any gas sale or  purchase
contract in effect on July 18, 1986 covering any of the Properties.  None of the
Properties is subject to any offer of  take-or-pay  credits for gas  transported
pursuant to FERC Order No. 500. None of the Properties have been abandoned under
FERC Order No. 490 or any revisions thereof.

                                       9
<PAGE>




          3.1.22  Production  Balances.  To the best of Sellers'  knowledge  and
belief,  none  of  the  purchasers  under  any  production  sales  contracts  or
prepayment  agreements are entitled to "make-up" or otherwise receive deliveries
of Hydrocarbons at any time after the Effective Time without paying at such time
the full contract price  therefor.  No one is entitled to receive any portion of
the  interest of any  Sellers in any  Hydrocarbons  or to receive  cash or other
payments to "balance" any disproportionate  allocation of Hydrocarbons under any
operating  agreement,  gas balancing and storage  agreement,  gas  processing or
dehydration agreement, or other similar agreements.

          3.1.23  Environmental  Matters.  To the best of Sellers' knowledge and
belief,  none of the  Properties  are subject to, or in a condition  which could
subject  them to, any claims or demands,  whether for injury or death to persons
or  damages to  property,  any  claim,  injury,  action,  loss,  cost,  expense,
liability,  penalty,  charge or damage,  including without limitation reasonable
attorney  fees, and all costs and expenses of all actions,  suits,  proceedings,
demands, assessments, claims and judgments, whether direct, pending, threatened,
contingent  or  otherwise,  related  to  the  generation,   treatment,  storage,
transportation, discharge, emission or disposal of hydrocarbons and of hazardous
materials, pollutants, contaminants or wastes on or from the Properties, as such
terms  are  defined  and used by,  and any other  substances  affected  by,  the
Comprehensive   Environmental  Response  Compensation  and  Liability  Act,  the
Resource  Conservation and Recovery Act, the Toxic  Substances  Control Act, the
Emergency Planning and Right-To-Know Act, the Hazardous Materials Transportation
Act, the Oil Pollution Act, the Clean Water Act, the Safe Drinking Water Act, or
the Clean Air Act, all as they have been or may be amended from time to time, or
any other  applicable  federal,  state or local  statute,  rule,  regulation  or
ordinance.


                                       10
<PAGE>


     3.2  Representations And Warranties Of Buyer. Buyer represents and warrants
 to Sellers the following:

          3.2.1  Organization.  Buyer is a corporation  duly organized,  validly
existing and in good standing under the laws of the State of Nevada.

          3.2.2 Corporate Power.  Buyer has all requisite power and authority to
carry on its business as presently conducted,  to enter into this Agreement,  to
purchase the Properties on the terms described in this Agreement, and to perform
its other obligations under this Agreement.

          3.2.3 Conflicts. The consummation of the transactions  contemplated by
this  Agreement  will not violate,  be in conflict with, or constitute a default
under any  provision  of the  articles  of  incorporation,  bylaws or  governing
documents of Buyer,  any provision of any agreement or instrument to which or by
which Buyer is a party or by which it is bound or any judgment, decree, judicial
or administrative  order, award, writ,  injunction  statute,  rule or regulation
applicable to Buyer or the Properties.

          3.2.4  Enforceability.  This  Agreement  has been  duly  executed  and
delivered on behalf of Buyer,  and at the Closing all documents and  instruments
required to be executed and delivered by Buyer in order to consummate  this sale
and purchase pursuant to this agreement,  shall be executed and delivered.  This
Agreement does, and such documents and instrument shall, constitute legal, valid
and binding obligations of Buyer enforceable in accordance with their terms.

          3.2.5  Broker's Fees.  Buyer has incurred no liability,  contingent or
otherwise,   for  broker's  or  finder's  fees  relating  to  the   transactions
contemplated  by this Agreement for which Sellers shall have any  responsibility
whatsoever.

          3.2.6  Accuracy  of  Representations  and  Warranties.   None  of  the
statements,  representations or warranties made by Buyer in this agreement or in
any exhibit or certificate  delivered  pursuant to this  Agreement  contains any
untrue  statement  of any  material  fact or omits to state  any  material  fact
necessary  to be  stated  in order to make the  statements,  representations  or
warranties contained herein or therein not misleading.

     3.3 Survival of Representations  and Warranties.  The  representations  and
warranties of Sellers in this Article III and the representations and warranties
of  Buyer in this  Article  III  shall  apply  as of the  time of  Closing.  The
following shall survive the Closing: (a) Sellers' representations and warranties
in paragraphs 3.1.1 through 3.1.4;  (b) Sellers'  warranty of title in paragraph
3.1.11 by,  through,  and under  Sellers,  but not  otherwise;  and (c)  Buyer's
representations and warranties in paragraphs 3.2.1 and 3.2.2.

                                       11
<PAGE>

                                   ARTICLE IV
                                    COVENANTS

     4.1 Closing  Conditions.  Sellers shall cause all the  representations  and
warranties of Sellers  contained in this Agreement to be true and correct on and
as of  the  Closing  Date.  To  the  extent  the  conditions  precedent  to  the
obligations of Buyer are within the control of Sellers, Sellers shall cause such
conditions  to be  satisfied  on or prior to the Closing Date and, to the extent
the conditions  precedent to the obligations of Buyer are not within the control
of Sellers,  Sellers shall use their best efforts to cause such conditions to be
satisfied on or prior to the Closing Date.

     4.2  Registration  Statement.  Buyer covenants and agrees to use reasonable
commercial  efforts  to  file a  registration  statement  on Form  S-3 or  other
appropriate  form on or before  January 10,  1997,  but in no event on or before
Closing, with the United States Securities and Exchange Commission,  registering
the  shares  of the  $0.10  par  value  per  share  common  stock of Buyer to be
delivered to Sellers at Closing,  for resale as provided for in Paragraph  6.3.6
and to have the registration  statement  declared  effective within a reasonable
time thereafter.

                                    ARTICLE V
                              CONDITIONS TO CLOSING

     5.1  Sellers'  Conditions.  The  obligations  of Sellers at the Closing are
subject  to the  satisfaction  at or  prior  to  the  Closing  of the  following
conditions:

          5.1.1 Buyer's Representations and Warranties Shall Be True At Closing.
All representations and warranties of Buyer contained in this Agreement shall be
true  in  all   material   respects  at  and  as  of  the  Closing  as  if  such
representations  and  warranties  were made at and as of the Closing  Date,  and
Buyer shall have performed and satisfied all material agreements in all material
respects required by this Agreement to be performed and satisfied by Buyer at or
prior to the Closing.

          5.1.2 No Restraining or Prohibiting  Orders.  No order shall have been
entered by any court or governmental agency having jurisdiction over the Parties
or the subject  matter of this contract that restrains or prohibits the purchase
and sale  contemplated  by this  Agreement  and which  remains  in effect at the
Closing Date.

                                       12
<PAGE>



     5.2 Buyer's  Conditions.  The  obligations  of  Buyer  at  the  Closing are
subject at the option of Buyer,  to the  satisfaction at or prior to the Closing
of the following conditions:

          5.2.1  Sellers'  Representations  and  Warranties  Shall  Be  True  at
Closing.  All  representations  and  warranties  of  Sellers  contained  in this
Agreement shall be true in all material  respects at and as of the Closing as if
such  representations were made at and as of the Closing Date, and Sellers shall
have  performed and satisfied all material  agreements in all material  respects
required by this  Agreement to be performed and satisfied by Sellers at or prior
to the Closing.

          5.2.2 No Restraining or Prohibiting  Orders.  No order shall have been
entered by any court or governmental agency having jurisdiction over the Parties
or the  subject  matter  of this  Agreement  that  restrains  or  prohibits  the
transaction  contemplated  by this  Agreement and which remains in effect at the
Closing Date.

          5.2.3 Adverse Material Changes.  In Buyer's sole, good faith judgment,
there shall not occur,  prior to Closing,  adverse material change or difference
from  information  furnished  by  Sellers to Buyer,  or relied  upon by Buyer in
making  its offer with  respect  to the  Properties,  Sellers'  interest  in the
Properties,  the value of the Properties,  Sellers' financial condition,  or the
condition of the Properties  (except  depletion through normal production within
authorized allowables and rates of production), and none of the Properties shall
have suffered any material destruction, damage or loss.

          5.2.4  Operational  Condition  of  the  Equipment.   Buyer  has  fully
satisfied  itself that all  Equipment  owned or used by Sellers  with respect to
ownership  and/or  operation of the Properties is in good repair,  working order
and operating condition and is adequate for the operation of the Properties.

          5.2.5  Evidence of Release of Liens and  Encumbrances.  Sellers  shall
furnish Buyer evidence that all liens and encumbrances not expressly  identified
herein as Permitted  Encumbrances  have been released prior to or simultaneously
with closing, said evidence to be satisfactory to Buyer in its sole discretion.

          5.2.6 Consents and Approvals.  All consents and approvals  required to
be  obtained  for the  assignment  of the  Properties  to Buyer  shall have been
obtained,  and all  preferential  purchase rights arising in connection with the
assignment  of the  Properties  to Buyer  shall  have been  waived or shall have
expired.

                                       13
<PAGE>



          5.2.7  Compliance.  Sellers  shall have  performed and complied in all
material  respects with each of the covenants  and  conditions  required by this
Agreement of which  performance  or  compliance  is required  prior to or at the
Closing.

          5.2.8 No Pending Suits. No suit, action or other proceeding before any
court or  governmental  agency  shall be  pending or  threatened  in which it is
sought to restrain or prohibit the  performance of or to obtain damages or other
relief in connection with this Agreement or the consummation of the transactions
contemplated hereby.

          5.2.9 Approval of Title. Buyer shall have approved Sellers' Marketable
Title to the Properties.

          5.2.10.  Prospect  Costs.  Sellers  shall  deliver  to Buyer a written
statement signed by W & T Offshore,  Inc.,  identifying in reasonable detail all
prospect costs as of September 30, 1996, to be considered in the  calculation of
"Prospect Payout," as that term is defined in the letter agreement  described as
item 1. in C. of Exhibit "A" to this Agreement.

          5.2.11 Additional  Letters.  Sellers shall deliver to Buyer letters in
the  forms  attached  hereto  as  Exhibit  "C"  fully  executed  by the  parties
identified thereon.

          5.2.12  Board  Approval.  The board of  directors  of Buyer shall have
approved the transactions contemplated by this Agreement.

                                   ARTICLE VI
                                     CLOSING

     6.1 Closing Date.  Unless the Parties hereto mutually agree otherwise,  and
subject to the conditions  stated in this  Agreement,  the  consummation  of the
transactions  contemplated hereby (herein called the "Closing") shall be held at
or before 5:00 p.m., Central Standard Time,  December 31, 1996, or at such other
time as Buyer and Sellers may agree in writing. The date Closing actually occurs
is herein  called  the  "Closing  Date."  Time  shall be of the  essence of this
Agreement.

     6.2  Place  Of  Closing.  The  Closing  shall  be  held at the  offices  of
- -----------------------------,  or at such other  place as Buyer and Sellers may
agree in writing.


                                       14
<PAGE>



     6.3 Closing Obligations.  At the Closing, the following events shall occur,
each being a  condition  precedent  to the others and each being  deemed to have
occurred simultaneously with the others:
  
          6.3.1  Assignment.  Sellers shall execute,  acknowledge and deliver to
Buyer an assignment,  bill of sale and conveyance (in sufficient counterparts to
facilitate  recording)  substantially  in form  and  substance  as set  forth in
Exhibit "B" hereto (the "Assignment"), conveying the Properties to Buyer.

          6.3.2 Declaration of Agreement for Exploitation of Mineral  Interests.
If no  declaration  in  compliance  with  ss.  2731  et seq.  of  Title 9 of the
Louisiana Revised Statues sufficient to bind third persons acquiring an interest
in the Oil and Gas  Properties  has been  filed of record  in the  office of the
Clerk  of  Court  of  Iberville  Parish,   Louisiana,   Sellers  shall  execute,
acknowledge, and deliver to Buyer such a declaration.

          6.3.3 Agreements To Be Subject To Sellers' Interest in the Oil and Gas
Properties.  In the event that Buyer's investigation of the title to the Oil and
Gas Properties  indicates to Buyer in its sole  discretion  that any third party
has  acquired any interest in the Oil and Gas  Properties  which was  originally
burdened by Sellers'  interest in the Oil and Gas Properties  but which,  due to
the  absence of an  appropriate  agreement  or the absence of a  Declaration  as
described  above,  is no longer  subject to  Sellers'  interest,  Sellers  shall
furnish  Buyer an  agreement  from such third  party or parties to be subject to
Sellers' interest in the Oil and Gas Properties.

          6.3.4  Satisfactory  Evidence  of Release  of Liens and  Encumbrances.
Sellers  shall  furnish  Buyer  evidence  that all  liens and  encumbrances  not
constituting  Permitted  Encumbrances  have been  released,  said evidence to be
satisfactory to Buyer in Buyer's sole discretion.

          6.3.5 Delivery of Possession. Sellers shall deliver to Buyer exclusive
possession of Sellers' interest in and to the Properties.

          6.3.6 Payment of Purchase Price. Against delivery of the documents and
materials  described  above,  Buyer shall (a) pay to each Seller  separately  by
certified check or wire transfer its proportionate share of the sum of the EIGHT
HUNDRED SEVENTY-FIVE THOUSAND AND NO/100 DOLLARS  ($875,000.00),  each Seller to
receive the amount set out next to its name as follows:


                                       15
<PAGE>


         Atocha Exploration, Inc.            $393,750
         Browning Oil Company, Inc.          $350,000
         Potosky Oil and Gas, Inc.           $131,250

and (b) deliver to each Seller  separately  its  proportionate  share of 315,000
shares of the $0.10 par value per share  common  stock of Buyer,  each Seller to
receive the number set out next to its name as follows:

         Atocha Exploration, Inc.             141,750
         Browning Oil Company, Inc.           126,000
         Potosky Oil and Gas, Inc.             47,250

Each certificate shall bear the following restrictive legend:

          The securities represented by this certificate may not be offered
          for sale,  sold or otherwise  transferred  except  pursuant to an
          effective registration statement under the securities Act of 1933
          (the "Act"), or pursuant to an exemption from registration  under
          the Act, the  availability  of which is to be  established to the
          satisfaction of the Company.

Prior to the time Sellers assign,  sell or otherwise dispose of their respective
shares,  the restrictive  legend cannot be removed.  The registration  statement
referred to in Paragraph 4.2 will register the shares "for resale." Accordingly,
the restrictive legend will only be removed at the time Sellers assign,  sell or
otherwise  dispose of those  shares.  Sellers,  or their  agents  effecting  the
transaction,  will be  required  to  contact  the  Company's  transfer  agent to
determine the procedure that is best to follow to have their shares  transferred
without a restrictive  legend upon the assignment,  sale or other disposition of
Sellers' shares.

          6.3.7  Prospect  Costs.  Sellers  shall  deliver  to  Buyer a  written
statement  signed by Sellers and National  Energy Group,  Inc.,  identifying  in
reasonable  detail all prospect costs as of September 30, 1996, to be considered
in the  calculation of "Prospect  Payout," as that term is defined in the letter
agreement described as item 1. in C. of Exhibit "A" to this Agreement.

          6.3.8  Additional  Letters.  Sellers  shall  deliver  to  Buyer  fully
executed letters in the forms attached hereto as Exhibit "C."


                                       16
<PAGE>

                                   ARTICLE VII
                            POST-CLOSING OBLIGATIONS

     7.1 Files And Records.  Within  fifteen  (15) days after the Closing  Date,
Sellers shall, upon the request of Buyer,  deliver to Buyer such copies of files
and records relating to the Properties as are in Sellers'  possession or subject
to Sellers' control.

     7.2 Sales  Taxes And  Recording  Fees.  Sellers  shall pay any sales  taxes
occasioned  by the sale of the  Properties.  Buyer  shall  pay all  documentary,
filing and recording  fees required in connection  with the filing and recording
of any assignments.
  
     7.3 Indemnification.  After the Closing and to the extent permitted by law,
Sellers and Buyer shall indemnify each other as follows:

          7.3.1 Sellers' Indemnities.  Sellers shall defend,  indemnify and save
and hold Buyer harmless against all claims,  costs, damages,  losses,  expenses,
obligations  and liabilities  with respect to the  Properties,  which arise from
occurrence  or  nonoccurrences  taking place either in whole or in part prior to
the Effective Time.

          7.3.2 Buyer' s Indemnities. Buyer shall defend, indemnify and save and
hold Sellers  harmless against all claims,  costs,  damages,  losses,  expenses,
obligations  and  liabilities  with respect to the  Properties  which arise from
events or occurrences taking place after the Effective Time.

     7.4 Survival. All representations,  warranties,  covenants, agreements, and
indemnities of or by the Parties shall survive the execution and delivery of any
of the instruments to be delivered at closing.

     7.5. Stock Adjustment. If, on the date the registration statement described
in Paragraph 4.2 becomes effective (the "Registration Date"), the average of the
reported  closing  bid and asked  prices (the  "Effective  Price") for the stock
described in  Paragraph  6.3.6 is less than TWO AND 78/100  ($2.78)  DOLLARS per
share, the difference in value shall be accounted for by Buyer to Sellers either
by (i) the  payment  of cash equal to the  difference  or (ii) the  delivery  to
Sellers  of the  number of shares of the $0.10 par value  common  stock of Buyer
with an  aggregate  Effective  Price  on the  Registration  Date  equal  to such
difference.  The method by which Buyer  accounts to Sellers  shall be within the
sole discretion of Buyer. If Buyer elects to deliver  additional  shares,  Buyer
shall  register  those  shares  for  resale  at the time  the next  registration
statement for securities of Buyer is filed by Buyer with the Securities Exchange
Commission.

                                       17

<PAGE>



     7.6 Further  Assurances.  After  Closing,  Sellers and Buyer shall execute,
acknowledge and deliver or cause to be executed, acknowledged and delivered such
instruments and take such other action as may be necessary or advisable to carry
out their obligations  under this Agreement and under any document,  certificate
or other instrument delivered pursuant hereto.
  
                                  ARTICLE VIII
                            TERMINATION OF AGREEMENT

     8.1 Termination Without Liability. The Parties may terminate this Agreement
and the  transactions  contemplated  herein  without any liability to each other
whatsoever in the following instances:

          8.1.1  Termination  by Sellers.  By Sellers if the conditions to their
obligations  at Closing as set forth in this  Agreement are not satisfied in all
material respects or waived as of the Closing Date.

          8.1.2  Termination  by  Buyer.  By  Buyer  if  the  conditions  to its
obligations  at Closing as set forth in this  Agreement are not satisfied in all
material  respects  or  waived  as of the  Closing  Date  or in the  event  of a
"Casualty  Loss," as that term is  hereinafter  defined.  "Casualty  Loss" shall
mean, with respect to all or any portion of the  Properties,  any destruction by
fire, blowout,  storm, or other casualty or any taking, or pending or threatened
taking, in condemnation or expropriation or under the right of eminent domain of
any of the Properties, prior to Closing.

          8.1.3  Termination  by  Mutual  Agreement.  At any time by the  mutual
written agreement of the Parties.

          8.1.4  Termination  For Failure of Timely  Closing.  By Sellers and/or
Buyer if the  Closing  shall not have  occurred by the  Closing  Date  provided,
however, that a Party cannot so terminate if it is in breach of this Agreement.

     8.2  Liabilities  Upon  Termination.  Except as otherwise  provided in this
Agreement,  if this  Agreement  is  terminated  for any  reason or is  breached,
nothing  contained herein shall be construed to limit Sellers' or Buyer' s legal
or  equitable  remedies,  including  damages  for the  breach of  failure of any
representation, warranty, covenant or agreement contained herein or the right to
specific performance of this Agreement.


                                       18
<PAGE>



                                   ARTICLE IX
                                  MISCELLANEOUS
  
     9.1  Exhibits.  The  exhibits  referred  to in this  Agreement  are  hereby
incorporated  into this  Agreement  by reference  and  constitute a part of this
Agreement.

     9.2 Notices.  All notices and  communications  required or permitted  under
this Agreement shall be in writing,  and any communication or delivery hereunder
shall be  deemed  to have  been  duly  made  when  personally  delivered  to the
individual  indicated  below,  or if mailed or telecopied,  when received by the
Party charged with such notice, however, that such notice should be addressed as
follows:

         If to Buyer:

         Pease Oil and Gas Company
         751 Horizon Court, Suite 203
         Grand Junction, Colorado  81506-8718
         Attn:  Willard H. Pease, Jr., President
         fax:  (970) 243-8840


         If to Atocha Exploration, Inc.:
         Atocha Exploration, Inc.
         1201 Louisiana, Suite 1050
         Houston, Texas  77002
         Attn:  W. David Willig, President
         fax:  (713) 654-5018


         If to Browning Oil Company, Inc.:

         Browning Oil Company, Inc.
         8080 N. Central Expressway, Suite 780
         Dallas, Texas  75206
         Attn:  Michael R. McWilliams, President
         fax:  (214) 739-4458


         If to Potosky Oil and Gas, Inc.:

         Potosky Oil and Gas, Inc.
         10410 Memorial Drive
         Houston, Texas  77024
         Attn:  Robert Potosky, President
         fax:  (713) 654-5018


                                       19
<PAGE>




Any Party may, by written  notice so delivered to the others in compliance  with
this paragraph, change the address provided for above.

     9.3  Amendments.  This  Agreement  may not be  amended  except by a written
instrument signed by all Parties hereto.

     9.4  Alienability.  Neither  Sellers nor Buyer may assign  their  rights or
obligations hereunder without the written consent of all Parties. Subject to the
foregoing,  this  Agreement  shall be binding upon the Parties  hereto and their
respective successors and assigns.

     9.5  Third-Party  Beneficiaries.  Nothing in this  Agreement  shall entitle
anyone  other than  Sellers and Buyer to any claim,  cause of action,  remedy or
right of any kind.

     9.6  Counterparts.  This  Agreement may be executed by Buyer and Sellers in
any  number  of  counterparts,  each  of  which  shall  be  deemed  an  original
instrument,  but all of which  together  shall  constitute  but one and the same
instrument.

     9.7 Governing Law. This Agreement and the transactions  contemplated hereby
shall be construed in accordance with, and governed by, the laws of the State of
Louisiana.

     9.8 Entire  Agreement.  This  Agreement,  including  the  exhibits  hereto,
constitutes  the entire  understanding  among the  Parties  with  respect to the
subject matter hereof, superseding all negotiations, prior discussions and prior
agreements and  understandings  relating to such subject  matter.  In conformity
with the Doctrines of Merger and Contractual Integration,  the letters of intent
among the Parties dated November 19, 1996,  giving rise to this Agreement  shall
merge with this Agreement on the Agreement Date, and the letters of intent shall
thereafter have no force and effect.

     9.9  Severability.  If any term or other  provision  of this  Agreement  is
invalid,  illegal or  incapable  of being  enforced by any rule of law or public
policy, all other conditions and provisions of this Agreement shall nevertheless
remain in full force and effect.

     9.10 Waiver.  No waiver of any of the  provisions of this  Agreement  shall
constitute or be deemed a waiver of any other provision  hereof,  whether or not
similar,  nor shall such waiver  constitute a continuing waiver unless otherwise
expressly provided.

                                       20
<PAGE>


     9.11 Captions.  The captions in this Agreement are for convenience only and
shall not be considered a part of or affect the  construction or  interpretation
of any provision of this Agreement.

     9.12 "Including". In this Agreement, the word "including" means "including,
but not limited to."

     9.13 Construction.  In construing this Agreement, no consideration shall be
given to the fact or presumption  that one Party had a greater or lesser hand in
its drafting.

     9.14 Costs. Each Party shall pay its own costs, including fees and expenses
of its own counsel, consultants and accountants, in connection with the purchase
and sale of the  Properties,  except as otherwise  provided for herein.  Sellers
shall discharge all Encumbrances other than the Permitted Encumbrances.  Sellers
shall pay all sales and other  transfer  taxes,  if any,  incurred in connection
with  the  transaction  contemplated  by this  Agreement.  Buyer  shall  pay all
documentary, filing and recording fees.

     9.15 Publicity. Sellers and Buyer shall consult with each other with regard
to all publicity and other releases issued at or prior to the Closing concerning
this Agreement and the  transactions  contemplated by it, and except as required
by applicable  law or the applicable  rules or  regulations of any  governmental
body or stock exchange, no Party shall issue any such publicity or other release
without the prior written consent of the other Parties.

     9.16 Gender And Number. As used in this Agreement, the masculine,  feminine
or neuter  gender  and the  plural or  singular  number  shall each be deemed to
include the others whenever the context so indicates.

     This  Agreement has been duly executed by Buyer and Sellers this ------ day
of ----------- 19--- (the "Agreement Date").

                                           SELLERS:

                                           ATOCHA EXPLORATION, INC.



                                           /s/ W. David Willig
                                           --------------------------------
                                           W. David Willig, President


                                           BROWNING OIL COMPANY, INC.



                                           /s/ Michael R. McWilliams
                                           --------------------------------
                                           Michael R. McWilliams, President




                                       21
<PAGE>


                                           POTOSKY OIL AND GAS, INC.



                                           /s/ Robert Potosky
                                           --------------------------------
                                           Robert Potosky, President


                                           BUYER:

                                           PEASE OIL AND GAS COMPANY



                                           /s/ Willard H. Pease, Jr.
                                           --------------------------------
                                           Willard H. Pease, Jr., President



STATE OF 
ss.      ------------------


ss.
COUNTY OF 
ss.      ------------------


This   instrument   was   acknowledged   before  me  on  this   ------   day  of
- ---------------,  19----, by W. David Willig,  President of ATOCHA  EXPLORATION,
INC., a Louisiana corporation, on behalf of said corporation.






- --------------------------------------
                                        Notary Public



                                       22
<PAGE>

STATE OF 
ss.     --------------



ss.
COUNTY OF 
ss.      -------------


This   instrument   was   acknowledged   before  me  on  this   ------   day  of
- ---------------,  19----,  by Michael R.  McWilliams,  President of BROWNING OIL
COMPANY, INC., a Nevada corporation, on behalf of said corporation.







- --------------------------------------
                                        Notary Public



STATE OF 
ss.      -------------


ss.
COUNTY OF
ss.      -------------


This   instrument   was   acknowledged   before  me  on  this   ------   day  of
- ---------------,  19----,  by Robert Potosky,  President of POTOSKY OIL AND GAS,
INC., a Texas corporation, on behalf of said corporation.







- --------------------------------------
                                        Notary Public



                                       23
<PAGE>




STATE OF 
ss.      -------------



ss.
COUNTY OF 
ss.      -------------

This   instrument   was   acknowledged   before  me  on  this   ------   day  of
- ---------------,  19----, by Willard H. Pease,  Jr.,  President of PEASE OIL AND
GAS COMPANY, a Nevada corporation, on behalf of said corporation.








- --------------------------------------
                                        Notary Public





                                       24
<PAGE>

                                   EXHIBIT "A"
                                       TO
                           PURCHASE AND SALE AGREEMENT


     This  Exhibit  "A" sets forth the  description  of the  property  interests
covered  by the  Purchase  and Sale  Agreement  to  which  this  Exhibit  "A" is
attached.  All of the terms defined in the Purchase and Sale  Agreement and used
in this Exhibit "A" have the same meanings given therein.

     This Exhibit "A" and the Purchase and Sale Agreement  cover and include the
following:

     (a) All of Sellers'  right,  title and  interest in and to the oil, gas and
mineral leases  described herein or subject to any of the pooled units described
herein,  as such leases and pooled units have been or may be modified  from time
to time,  and/or  lands  described  in and subject to such oil,  gas and mineral
leases  (regardless,  as to such leases  and/or  lands,  of any surface  acreage
and/or depth  limitations  set forth in any  description of any of such oil, gas
and  mineral  leases),  except as  otherwise  provided  for  herein,  and all of
Sellers'  right,  title and  interest in and to any of the oil, gas and minerals
in, on or under the lands, if any, described on this Exhibit, including, without
limitation,  all  contractual  rights,  servitudes,  fee  interests,   leasehold
interests,  overriding royalty interests,  non-participating  royalty interests,
mineral interests,  production  payments,  net profits  interests,  or any other
interest  measured by or payable out of production of oil, gas or other minerals
from the oil, gas and mineral leases and/or lands  described  herein,  except as
otherwise provided for herein;

     (b) All of the  foregoing  interests  of Sellers as such  interests  may be
enlarged by the discharge of any payments out of production or by the removal of
any charges or encumbrances together with Sellers' interests in, to and under or
derived  from all  renewals and  extensions  of any oil, gas and mineral  leases
described herein, it being specifically intended hereby that any new oil and gas
lease (i) in which an interest is acquired by Sellers after the  termination  or
expiration  of any oil and gas lease,  the interests of Sellers in, to and under
or derived from which are subject to the lien and security interest hereof,  and
(ii) that  covers all or any part of the  property  described  in and covered by
such terminated or expired leases,  shall, to the extent, and only to the extent
such new oil and gas lease may cover such  property,  be considered a renewal or
extension of such terminated or expired lease;

     (c) All right,  title and  interest  of Sellers in, to and under or derived
from any operating,  participation,  exploration,  letter,  farmout, and bidding
agreements, assignments and subleases, whether described in this Exhibit "A," to
the  extent,  and only to the  extent,  that such  agreements,  assignments  and
subleases  cover or include (i) any of Sellers'  present or future right,  title
and interest in and to the wells,  leases,  units and/or lands described in this
Exhibit "A," (ii) any of Sellers'  present or future right,  title, and interest
in and to wells,  leases, units and/or lands described in or covered by any such
agreements,  assignments  and subleases  specifically  described in this Exhibit
"A," or (iii) cover or include any other  undivided  interests  now or hereafter
held by Sellers  in, to and under the  described  wells,  leases,  units  and/or
lands,  including,  without  limitation,  any future  operating,  participation,
exploration, letter, farmout and bidding agreements,  assignments, subleases and
pooling,  unitization  and  communitization  agreements  and the  units  created
thereby  (including,   without  limitation,   all  units  formed  under  orders,
regulations,  rules or other  official acts of any  governmental  body or agency
having  jurisdiction) to the extent and only to the extent that such agreements,
assignments,  subleases,  or units cover or include the described wells, leases,
units and/or lands;

     (d) All right,  title,  and interest of Sellers in, to and under or derived
from  all  presently  existing  and  future  advance  payment  agreements,  oil,
casinghead gas and gas sales,  exchange, and processing contracts and agreements
including,  without  limitation,  any of those contracts and agreements that are
described  on this  Exhibit  "A" to the extent,  and only to the  extent,  those
contracts  and  agreements  cover or include the  described  leases and/or lands
herein; and



<PAGE>


     (e) All right,  title and  interest  of Sellers in, to and under or derived
from all existing and future permits, licenses, easements and similar rights and
privileges  that relate to or are  appurtenant  to any of the  described  leases
and/or lands.

     Notwithstanding  the intention of this Purchase and Sale Agreement to cover
all of the right,  title and interest of Sellers in and to the described  wells,
leases, units and Lands, except as otherwise provided for herein, Sellers hereby
specifically  warrant and represent  that the interests  covered by this Exhibit
are not  greater  than  the  working  interest  nor less  than  the net  revenue
interest,  overriding royalty interest, net profit interest,  production payment
interest,  royalty  interest  or other  interest  payable  out of or measured by
production  set forth in connection  with each oil and gas well,  lease and unit
described  in this  Exhibit.  In the  event  Sellers  own any  other or  greater
interest, such additional interest shall also be covered by and included in this
Purchase and Sale Agreement, except as otherwise provided for herein.

     The designation  "Working Interest" or "W.I." means an interest owned in an
oil, gas, and mineral lease that  determines the cost bearing  percentage of the
owner of such interest. The designation "Net Revenue Interest" or "N.R.I." means
net revenue  interest,  or that portion of the  production  attributable  to the
owner of a working interest after deduction for all royalty burdens,  overriding
royalty burdens, or other burdens on production,  except severance,  production,
windfall  profits and other similar taxes. The designation  "Overriding  Royalty
Interest" or  "O.R.R.I."  means an interest in  production  which is free of any
obligation for the expense of exploration,  development and production,  bearing
only its prorata  share of  severance,  production,  windfall  profits and other
similar  taxes and, in  instances  where the document  creating  the  overriding
royalty interest so provides,  costs associated with  compression,  dehydration,
other  treating or  processing  or  transportation  of production of oil, gas or
other minerals  relating to the marketing of such  production.  The  designation
"Royalty  Interest" or "R.I." means an interest in production which results from
an  ownership in the mineral fee estate or royalty  estate in the relevant  land
and which is free of any obligation for the expense of exploration,  development
and  production,  bearing  only  its  prorata  share of  severance,  production,
windfall  profits and other similar  taxes and, in instances  where the document
creating the royalty interest so provides,  costs  associated with  compression,
dehydration,  other  treating or processing or  transportation  of production of
oil,  gas or  other  minerals  relating  to the  marketing  of such  production.
"A.P.P.O."  shall  mean  after  prospect  payout as that term is  defined by the
contracts  and  agreements  described  in  item C.  below  and  any  letters  or
agreements required by this Purchase and Sale Agreement.

A.   LEASES

          1. Oil, Gas and Mineral Lease dated January 10, 1994,  filed  February
          16,  1994,  recorded in COB 467,  Folio 474,  Entry No. 71,  Iberville
          Parish,  Louisiana, from Schwing, Inc., as agent for Virginia Campbell
          Becker, et al., to UMC Petroleum Corporation,  covering the lands more
          particularly described therein.

                       A.P.P.O.W.I. - 7.8125%
                       A.P.P.O.N.R.I. - 5.625%

          2. Oil,  Gas and Mineral  Lease dated  December  27,  1995,  effective
          December 14, 1995, filed February 21, 1996, recorded in COB 485, Folio
          364, Entry No. 99, from Wilbert Funeral Home, Inc., to W & T Offshore,
          Inc., covering the lands more particularly described therein.



                                       A-2


<PAGE>



                       A.P.P.O.W.I. - 7.8125%
                       A.P.P.O.N.R.I. - 5.625%

          3. Oil, Gas and Mineral Lease dated June 14, 1996, filed July 1, 1996,
          recorded  in COB 489,  Folio 158,  Entry No. 75, from  Wilbert's  Sons
          Limited Partnership,  to W & T Offshore, Inc., covering the lands more
          particularly described therein.

                       A.P.P.O.W.I. - 7.8125%
                       A.P.P.O.N.R.I. - 5.625%




                                       A-3


<PAGE>



          4. That  certain  Lease  awarded  August 14,  1996,  from the State of
          Louisiana to National Energy Group, Inc.,  covering a portion of State
          Lease Tract 29181,  described as Tract A, containing 10 acres, more or
          less, being more particularly described therein.

                       A.P.P.O.W.I. - 7.8125%
                       A.P.P.O.N.R.I. - 5.234375%

          5. That  certain  Lease  awarded  August 14,  1996,  from the State of
          Louisiana to W & T Offshore,  Inc.,  covering a portion of State Lease
          Tract 29181, described as Tract B, containing 141 acres, more or less,
          being more particularly described therein.

                       A.P.P.O.W.I. - 7.8125%
                       A.P.P.O.N.R.I. - 5.8203125%


B.   UNITS

          1. The W & T Offshore,  Inc. - CIB. HAZ. 3 Sand,  Reservoir A, Unit as
          created by Order No. 374-U of the Office of  Conservation of the State
          of  Louisiana  dated  December 5, 1996,  but  effective on October 22,
          1996.

                       A.P.P.O.W.I. - -----------%
                       A.P.P.O.N.R.I. - ------------%

          2. The W & T Offshore,  Inc. - CIB. HAZ. 2 Zone,  Reservoir B. Unit as
          created  by Order No.  374-P-1 of the  Office of  Conservation  of the
          State of Louisiana  dated  December 5, 1996,  but effective on October
          22, 1996.

                       A.P.P.O.W.I. - -----------%
                       A.P.P.O.N.R.I. - ------------%


C.   CONTRACTS

          1. Letter agreement dated December 15, 1995, among Supply  Development
          Group,  Inc.,  Transworld  Exploration  &  Production,   Inc.,  Atocha
          Exploration,   Inc.,   Potosky  Oil  &  Gas,   Inc.,   Liberty  Energy
          Corporation,  Fortune  Petroleum  Corporation  d/b/a  Fortune  Natural
          Resources  Corporation,  Browning Oil  Company,  Inc.,  UMC  Petroleum
          Corporation,  Bonray, Inc., and National Energy Group, Inc., regarding
          participation  in the East Bayou Sorrel  Prospect,  Iberville  Parish,
          Louisiana.

          2.  Operating  agreement  dated  December 15, 1995, for the East Bayou
          Sorrel  Contract  Area,  Iberville  Parish,  Louisiana,  among  W  & T
          Offshore,  Inc.,  as Operator,  and Supply  Development  Group,  Inc.,
          National  Energy Group,  Inc.,  Liberty  Energy  Corporation,  Fortune
          Petroleum  Company  d/b/a  Fortune  Natural   Resources   Corporation,
          Transworld Exploration & Production, Inc., Browning Oil Company, Inc.,
          Potosky Oil & Gas, Inc., Atocha Exploration,  Inc., and Bonray,  Inc.,
          as Non-Operators.




                                       A-4


<PAGE>



          3. Letter  agreement dated April 19, 1996,  among Atocha  Exploration,
          Inc.,  Potosky Oil & Gas,  Inc.,  and  National  Energy  Group,  Inc.,
          regarding  the  optional  back-in  interest  in the East Bayou  Sorrel
          Prospect, Iberville Parish, Louisiana.

          4. Letter  agreement  dated July 18, 1996,  among Atocha  Exploration,
          Inc.,  Potosky  Oil & Gas,  Inc.,  and  Browning  Oil  Company,  Inc.,
          regarding the A.P.P.O. back-in interest, East Bayou Sorrel Prospect.

          5. Letter agreement dated July 30, 1996,  among W & T Offshore,  Inc.,
          Supply Development Group, Inc.,  Transworld  Exploration & Production,
          Inc., Atocha Exploration, Inc., Bonray, Inc., Potosky Oil & Gas, Inc.,
          Liberty  Energy  Corporation,   Fortune  Petroleum  Corporation  d/b/a
          Fortune  Natural  Resources,  Inc.,  Browning Oil Company,  Inc.,  and
          National  Energy Group,  Inc.,  regarding the area of interest for the
          East Bayou Sorrel Prospect, Iberville Parish, Louisiana.


D.   EXCLUSION

     Notwithstanding  any other  provision  to the  contrary  contained  in this
     Exhibit "A," the Purchase and Sale Agreement does not cover or include that
     certain  overriding  royalty interest of Sandefer Oil & Gas, Inc., W. David
     Willig,  and Robert A. Potosky  equal to 3% of 8/8ths of  production in the
     Area of Interest  provided for in the  Agreements,  including  the interest
     provided for in Exhibit "A" of the letter  agreement  described in C. above
     as item 1, to the extent  Sandefer Oil & Gas,  Inc., W. David  Willig,  and
     Robert A. Potosky are entitled to receive such an interest, the parties not
     intending to create such an interest by this Purchase and Sale Agreement.





                                       A-5


<PAGE>

                                   EXHIBIT "B"
                                       TO
                           PURCHASE AND SALE AGREEMENT


                                [ASSIGNMENT FORM]

              ASSIGNMENT OF INTEREST IN OIL, GAS AND MINERAL LEASES

STATE OF LOUISIANA         '
                           '       KNOW ALL PERSONS BY THESE PRESENTS:
PARISH OF IBERVILLE        '

     THAT, ATOCHA EXPLORATION,  INC., a Louisiana  corporation,  1201 Louisiana,
Suite  1050,  Houston,  Texas  77002,  BROWNING  OIL  COMPANY,  INC.,  a  Nevada
corporation,  8080 N. Central  Expressway,  Suite 780, Dallas,  Texas 75206, and
POTOSKY OIL AND GAS, INC., a Texas corporation,  10410 Memorial Drive,  Houston,
Texas 77024  (collectively,  "Assignors") for and in consideration of the sum of
TEN AND NO/100 ($10.00) DOLLARS and other good and valuable  consideration,  the
receipt and  sufficiency of which are hereby  acknowledged  and  confessed,  has
granted, sold,  transferred,  assigned and conveyed and does hereby GRANT, SELL,
TRANSFER,  ASSIGN and CONVEY to PEASE OIL AND GAS COMPANY, a Nevada corporation,
751 Horizon Court,  Suite 203, Grand  Junction,  Colorado  81506-8718 a Delaware
corporation ("Assignee") all of their right, title and interest,  except for the
overriding  royalty interest provided for in Exhibit "A" of item 1 below,  under
the following agreements (the "Agreements"):

          1. Letter agreement dated December 15, 1995, among Supply  Development
          Group,  Inc.,  Transworld  Exploration  &  Production,   Inc.,  Atocha
          Exploration,   Inc.,   Potosky  Oil  &  Gas,   Inc.,   Liberty  Energy
          Corporation,  Fortune  Petroleum  Corporation  d/b/a  Fortune  Natural
          Resources  Corporation,  Browning Oil  Company,  Inc.,  UMC  Petroleum
          Corporation,  Bonray, Inc., and National Energy Group, Inc., regarding
          participation  in the East Bayou Sorrel  Prospect,  Iberville  Parish,
          Louisiana.

          2.  Operating  agreement  dated  December 15, 1995, for the East Bayou
          Sorrel  Contract  Area,  Iberville  Parish,  Louisiana,  among  W  & T
          Offshore,  Inc.,  as Operator,  and Supply  Development  Group,  Inc.,
          National  Energy Group,  Inc.,  Liberty  Energy  Corporation,  Fortune
          Petroleum  Company  d/b/a  Fortune  Natural   Resources   Corporation,
          Transworld Exploration & Production, Inc., Browning Oil Company, Inc.,
          Potosky Oil & Gas, Inc., Atocha Exploration,  Inc., and Bonray,  Inc.,
          as Non-Operators.

          3. Letter  agreement dated April 19, 1996,  among Atocha  Exploration,
          Inc.,  Potosky Oil & Gas,  Inc.,  and  National  Energy  Group,  Inc.,
          regarding  the  "After  Prospect  Payout  Interest,"  as that  term is
          hereinafter defined.

          4. Letter  agreement  dated July 18, 1996,  among Atocha  Exploration,
          Inc.,  Potosky  Oil & Gas,  Inc.,  and  Browning  Oil  Company,  Inc.,
          regarding  the  "After  Prospect  Payout  Interest,"  as that  term is
          hereinafter defined.

          5. Letter agreement dated July 30, 1996,  among W & T Offshore,  Inc.,
          Supply Development Group, Inc.,  Transworld  Exploration & Production,
          Inc., Atocha Exploration, Inc., Bonray, Inc., Potosky Oil & Gas, Inc.,
          Liberty  Energy  Corporation,   Fortune  Petroleum  Corporation  d/b/a
          Fortune  Natural  Resources,  Inc.,  Browning Oil Company,  Inc.,  and
          National  Energy Group,  Inc.,  regarding the area of interest for the
          East Bayou Sorrel Prospect, Iberville Parish, Louisiana.



<PAGE>



          6. Letter agreement dated December 10, 1996, among Atocha Exploration,
          Inc.,  Potosky Oil & Gas,  Inc.,  Browning Oil Company,  Inc.,  Supply
          Development Group, Inc., Liberty Energy Corporation, Bonray, Inc., and
          Transworld  Exploration & Production,  Inc.,  regarding the East Bayou
          Sorrel Prospect, Iberville Parish, Louisiana.

          7. Letter  agreement dated  ______________,  19____,  between National
          Energy Group,  Inc., and Pease Oil; and Gas Company regarding the East
          Bayou Sorrel Prospect, Iberville Parish, Louisiana.


     The rights herein assigned  include,  but are not limited to, and Assignors
do hereby GRANT, SELL,  TRANSFER,  ASSIGN and CONVEY to Assignee,  the option to
acquire  in  accordance  with the  Agreements  an  undivided  7.8125%  of 8/8ths
interest,  effective upon the  occurrence of "Prospect  Payout," as that term is
defined in the Agreements  (the "After Prospect  Payout  Interest"),  with a net
revenue  interest in each Lease and Unit not less than the net revenue  interest
(the  "NRI")  identified  for the  Lease or Unit in  parentheses  following  the
description  of such Lease or Unit, in and to the following Oil, Gas and Mineral
Leases and Units:

          1. Oil, Gas and Mineral Lease dated January 10, 1994,  filed  February
          16,  1994,  recorded in COB 467,  Folio 474,  Entry No. 71,  Iberville
          Parish,  Louisiana, from Schwing, Inc., as agent for Virginia Campbell
          Becker, et al., to UMC Petroleum Corporation,  covering the lands more
          particularly described therein (5.625% NRI).

          2. Oil,  Gas and Mineral  Lease dated  December  27,  1995,  effective
          December 14, 1995, filed February 21, 1996, recorded in COB 485, Folio
          364, Entry No. 99, from Wilbert Funeral Home, Inc., to W & T Offshore,
          Inc.,  covering the lands more particularly  described therein (5.625%
          NRI).

          3. Oil, Gas and Mineral Lease dated June 14, 1996, filed July 1, 1996,
          recorded  in COB 489,  Folio 158,  Entry No. 75, from  Wilbert's  Sons
          Limited Partnership,  to W & T Offshore, Inc., covering the lands more
          particularly described therein (5.625% NRI).

          4. State Lease No 15357 dated  August 19,  1996,  recorded in COB 491,
          Folio  860,  Entry  No.  123,  from the  State of  Louisiana  to W & T
          Offshore, Inc., covering the lands more particularly described therein
          (5.234375% NRI).

          5. State Lease No. 15358 dated  August 19, 1996,  recorded in COB 492,
          Page 57, Entry No. 9, from the State of  Louisiana to National  Energy
          Group,  Inc.,  covering the lands more particularly  described therein
          (5.8203125% NRI).

          6. The W & T Offshore,  Inc. - CIB. HAZ. 3 Sand,  Reservoir A Unit, in
          the Bayou Sorrel Field, as created by Order No. 374-U of the Office of
          Conservation  of the State of Louisiana  dated  December 5, 1996,  but
          effective on October 22, 1996 (_________ NRI).

          7. The W & T Offshore,  Inc. - CIB. HAZ. 2 Zone,  Reservoir B Unit, in
          the Bayou Sorrel Field,  as created by Order No. 374-P-1 of the Office
          of  Conservation of the State of Louisiana dated December 5, 1996, but
          effective on October 22, 1996 (_____________ NRI).



                                       C-2

<PAGE>



as  well as any and all  other  Leases  in  which  the  Agreements  entitle  the
Assignors  to the After  Prospect  Payout  Interest,  in the  Areas of  Interest
described as follows:

          1.  BEGINNING at a point which is the Southwest  corner of Section 24,
          Township 10 South, Range 11 East Iberville Parish, Louisiana;

               THENCE in an Easterly direction to a point which is the Southeast
          corner of the West Half of Section 33 of said Township and Range;

               THENCE in a Northerly  direction to a point which is the point of
          intersection  of the  Northeast,  Northwest,  Southeast  and Southwest
          Quarters of Section 21 of said Township and Range;

               THENCE in a Westerly  direction to a point which is the Northeast
          corner of Lot or Tract 10, Section 19 of said Township and Range;

               THENCE in a Southerly  direction along the Easterly boundaries of
          Lots or  Tracts  10 and 11 of said  Section  to a point  which  is the
          Southeast  corner of said Lot or Tract  11,  said  point  being in the
          Northerly line of Section 30 of said Township and Range;

               THENCE  in  an  Easterly  direction  to  a  point  which  is  the
          Northeastern corner of Section 10 of said Township and Range;

               THENCE in a Southerly direction along the line between Sections 9
          and 10 of said Township and Range 4500 feet to a point on said line;

               THENCE West to a point in the Westerly line of Section 11 of said
          Township and Range;

               THENCE in a Southerly  direction along the Western  boundaries of
          Sections 11 and 24 of said  Township and Range to a point which is the
          Southwest corner of said Section 24;

               THENCE in an Easterly direction along the Southerly boundaries of
          Sections  24, 25, 31,  32,  and 33 to a point  which is the  Southeast
          corner of the West Half of Section 33 of said Township and Range,  and
          the point of beginning.

          2. BEGINNING at a point which is the Northwest corner of the Southeast
          Quarter of Section  21,  Township 10 South,  Range 11 East,  Iberville
          Parish, Louisiana;

               THENCE in an  Easterly  direction  to a point on the East line of
          said Section which is the Northeast corner of the Southeast Quarter of
          said section;

               THENCE South along the Eastern boundary of said section as called
          for in conflict with the Western boundaries of Sections 73, 74, and 75
          of said Township and Range and along the Eastern  boundary of Sections
          28 and 33 of said Township and Range to a point which is the Southeast
          corner of the  Northeast  Quarter of Section 33 of said  Township  and
          Range;



                                       C-3


<PAGE>



               THENCE in a Westerly  direction to a point which is the Southwest
          corner of the Northeast Quarter of said Section;

               THENCE in a Northerly direction to the point of beginning.


     TO HAVE AND TO HOLD the above  described  property and  premises,  together
with all and singular the rights and appurtenances thereto in any way belonging,
unto  Assignee  and its  successors  and assigns,  and  Assignors do hereby bind
themselves  and their  successors  and assigns to warrant and forever defend all
and singular the said property and premises unto Assignee and its successors and
assigns against every person  whomsoever  lawfully claiming or to claim the same
or any part thereof, by, through or under Assignors, but not otherwise.

     This  Assignment  is  made  subject  to the  following  terms,  conditions,
reservations and limitations:

     1. This Assignment is made pursuant to, in accordance  with, and subject to
the  terms,  covenants,  and  conditions  of,  that  certain  Purchase  and Sale
Agreement dated --------------, 19--, by and between Assignors and Assignee.

     2. This  Assignment is made subject to the terms,  covenants and conditions
of the Leases and the Agreements.

     3. The interests  assigned herein shall bear, on and after the time of, but
not  before,  Prospect  Payout,  their  proportionate  share  of all  royalties,
overriding royalties,  and other similar lease burdens in effect, whether or not
of record, as of the effective date of this Assignment.

     4. This Assignment and its terms, covenants and conditions shall be binding
upon and inure to the benefit of Assignors  and Assignee,  and their  respective
heirs, devisees, legal representatives, successors and assigns.

     IN  WITNESS  WHEREOF,   this  instrument  is  executed  the  -----  day  of
- ----------------,  19----, but effective as of midnight,  Central Standard Time,
December 31, 1996.


                                           ATOCHA EXPLORATION, INC.



                                           /s/ W. David Willig
                                           --------------------------------
                                           W. David Willig, President





                                       C-4


<PAGE>





                                           BROWNING OIL COMPANY, INC.



                                           /s/ Michael R. McWilliams
                                           --------------------------------
                                           Michael R. McWilliams, President


                                           POTOSKY OIL AND GAS, INC.



                                           /s/ Robert Potosky
                                           --------------------------------
                                           Robert Potosky, President



STATE OF                           ss.
         ---------------------            ss. 
COUNTY/PARISH OF                   ss.
                --------------

     On this ----- day of -----------------,  199--, before me appeared W. David
Willig,  to me personally  known, who, being by me duly sworn did say that he is
the President of ATOCHA EXPLORATION, INC., a Louisiana corporation, and that the
instrument was signed in behalf of the  corporation by authority of its Board of
Directors;  and that he acknowledged  the instrument to be the free act and deed
of the corporation.



                                           ------------------------------------
                                           Notary Public






                                       C-5


<PAGE>


STATE OF                           ss.
         ---------------------            ss. 
COUNTY/PARISH OF                   ss.
                --------------

     On this ----- day of  -----------------,  199--, before me appeared Michael
R. McWilliams,  to me personally known, who, being by me duly sworn did say that
he is the  President of BROWNING OIL COMPANY,  INC., a Nevada  corporation,  and
that the instrument was signed in behalf of the  corporation by authority of its
Board of Directors;  and that he acknowledged  the instrument to be the free act
and deed of the corporation.



                                           ------------------------------------
                                           Notary Public


STATE OF                           ss.
         ---------------------            ss. 
COUNTY/PARISH OF                   ss.
                --------------

     On this ----- day of -----------------, 199--, before me appeared Robert A.
Potosky,  to me personally known, who, being by me duly sworn did say that he is
the President of POTOSKY OIL AND GAS,  INC., a Texas  corporation,  and that the
instrument was signed in behalf of the  corporation by authority of its Board of
Directors;  and that he acknowledged  the instrument to be the free act and deed
of the corporation.



                                           ------------------------------------
                                           Notary Public








                                       C-6


<PAGE>

                                   EXHIBIT "C"
                                       TO
                           PURCHASE AND SALE AGREEMENT












                              [ADDITIONAL LETTERS]


<PAGE>








  [LETTER AGREEMENT BETWEEN NATIONAL ENERGY GROUP, INC., AND PEASE OIL AND GAS
           COMPANY ON TERMS TO BE AGREED UPON BY THE PARTIES THERETO]







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