PEASE OIL & GAS CO /CO/
S-4/A, EX-2.2, 2000-08-15
CRUDE PETROLEUM & NATURAL GAS
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                                                            Final Execution Copy


                       FIRST AMENDMENT TO MERGER AGREEMENT

         This first  amendment  (the  "Amendment")  to the Merger  Agreement  is
entered  into on this 3rd day of January,  2000,  by and among Pease Oil and Gas
Company, a Nevada corporation  ("Pease"),  its wholly owned Delaware  subsidiary
CPI  Acquisition  Corp.  ("CPI  Acquisition")  and Carpatsky  Petroleum Inc., an
Alberta corporation ("Carpatsky"), and evidences the following:

         WHEREAS,  Pease,  CPI  Acquisition  and Carpatsky  have entered into an
Agreement  and Plan of Merger  ("Merger  Agreement"),  dated  August  31,  1999,
providing  for,  among other things,  the  continuance of Carpatsky into a newly
formed Delaware corporation ("New Carpatsky"), and the merger of CPI Acquisition
with and into New Carpatsky;

         WHEREAS,  capitalized  terms used herein have the meaning given to them
in the Merger Agreement, unless otherwise provided herein;

         WHEREAS,  Carpatsky  and  Bellwether  Exploration  Company,  a Delaware
corporation  ("Bellwether"),  have entered into a Securities Purchase Agreement,
of even date herewith, ("the "Purchase Agreement"), pursuant to which Bellwether
has agreed to  purchase,  and  Carpatsky  has agreed to issue and sell,  a newly
created  series  of  Carpatsky  convertible  preferred  shares  (the  "Carpatsky
Preferred Shares"),  having the rights,  preferences and privileges as set forth
in the Articles of Amendment attached as Exhibit A to the Purchase Agreement;

         WHEREAS,  among other things, the Carpatsky Preferred Shares will grant
to  Bellwether  the right to cast a  majority  of the votes cast at a meeting of
Carpatsky shareholders;

         WHEREAS,  in connection  with the issuance of such Carpatsky  Preferred
Shares,  (i) the parties to the Merger  Agreement desire to make certain changes
to the Merger Agreement to provide for the treatment of the Carpatsky  Preferred
Shares in the  Redomestication  and Merger and (ii) Pease  desires to consent to
the  issuance  of the  Carpatsky  Preferred  Stock  as  required  by the  Merger
Agreement;

         NOW,   THEREFORE,   the   parties   hereto,   for  good  and   valuable
consideration,  the  receipt  and  sufficiency  of  which is  acknowledged,  and
desiring to be legally bound, do hereby agree as follows:



                                       1

<PAGE>



                    ARTICLE I. CONSENT TO PURCHASE AGREEMENT

         Section  1.1  Consent  of  Pease  and CPI  Acquisition.  Pease  and CPI
Acquisition  acknowledge  receipt of a copy of the Purchase Agreement and hereby
consent  to  the  issuance  of the  Carpatsky  Preferred  Stock  and  the  other
transactions  contemplated  by  the  Purchase  Agreement.  The  issuance  of the
Preferred Stock pursuant to and other transactions  contemplated by the Purchase
Agreement  shall not be a  "Competing  Transaction"  as  defined  in the  Merger
Agreement.

                   ARTICLE II. AMENDMENTS TO MERGER AGREEMENT

         Section 2.1 Amendment to Recitals of the Merger Agreement.  The Section
of the Merger  Agreement  entitled  "RECITALS" is hereby  amended to read in its
entirety as follows:


                                    RECITALS

         A. Upon the terms and subject to the conditions of this  Agreement,  on
the Effective Time (as hereinafter  defined) and in accordance with the Business
Corporations Act (Alberta) ("ABCA") and the General Corporation Law of the State
of Delaware ("Delaware Law"),  Carpatsky will effect a continuance into Delaware
by filing with the Secretary of State of Delaware a Certificate of Domestication
and a  Certificate  of  Incorporation  in  accordance  with  Section  388 of the
Delaware Law (the "Redomestication"),  subject to the right of holders of common
shares,  without par value  ("Old  Carpatsky  Common  Stock") and the holders of
convertible  preferred  shares,  series A,  without  par value  ("Old  Carpatsky
Preferred  Shares") (each such  dissenting  holder,  a "Dissenting Old Carpatsky
Stockholder")  to seek an  appraisal  of the fair value  thereof as  provided in
Section 184 of the ABCA, and

                  (i) each  share of Old  Carpatsky  Common  Stock,  issued  and
         outstanding  prior to the  effective  time of the  Redomestication  not
         owned by Carpatsky or any  subsidiary of  Carpatsky,  will be converted
         into one share of common stock,  $.01 par value ("New Carpatsky  Common
         Stock"), of Carpatsky Petroleum,  Inc., a corporation redomesticated in
         the State of Delaware ("New Carpatsky") (Old Carpatsky Common Stock and
         New   Carpatsky   Common  Stock  are   sometimes   referred  to  herein
         collectively as "Carpatsky Common Stock");

                  (ii)  each  Old   Carpatsky   Preferred   Share,   issued  and
         outstanding  prior to the  effective  time of the  Redomestication  not
         owned by Carpatsky or any  subsidiary of  Carpatsky,  will be converted
         into 1.073 shares of convertible  preferred  stock,  series A, $.01 par
         value ("New Carpatsky  Preferred  Stock"),  of New Carpatsky having the
         rights,  preferences  and  privileges  set forth in the  certificate of
         designation  attached to the First Amendment to Merger  Agreement dated
         December  30,  1999 (the  "First  Amendment  to Merger  Agreement")  as


                                        2

<PAGE>



         Exhibit A (Old Carpatsky  Preferred  Shares and New Carpatsky Preferred
         Stock  are  sometimes  referred to herein  collectively  as  "Carpatsky
         Preferred Stock"); and

                  (iii)  each  outstanding  warrant,  option  or other  right to
         acquire  Old  Carpatsky   Common  Stock  shall  be  converted  into  an
         equivalent right to acquire New Carpatsky Common Stock on the terms and
         conditions provided for in such warrant, option or other right.

         B. Concurrently with the  Redomestication,  Acquisition Corp., upon the
terms and subject to the conditions of this Agreement and in accordance with the
Delaware  Law,  will  merge  with and into New  Carpatsky  (the  "Merger"),  and
pursuant  thereto,  each  share  of  New  Carpatsky  Common  Stock,  issued  and
outstanding  immediately  prior to the Effective Time (as defined herein) of the
Merger,  not  owned  directly  or  indirectly  by  Carpatsky  or  Pease or their
respective subsidiaries,  will be converted at the Effective Time into the right
to receive  0.57842  shares of common  stock,  par value $.01 per share of Pease
("Pease Common Stock"),  and each share of New Carpatsky Preferred Stock will be
converted into one share of  convertible  preferred  stock,  series A, par value
$0.01 per share of Pease  ("New  Pease  Preferred  Stock")  having  the  rights,
preferences  and  privileges  set forth in Exhibit B to the First  Amendment  to
Merger  Agreement,  subject  to the  right  of  holders  of such  shares  of New
Carpatsky  Common Stock and New Carpatsky  Preferred  Stock (each, a "Dissenting
New  Carpatsky  Stockholder"  and together  with the  Dissenting  Old  Carpatsky
Stockholders,  collectively, the "Dissenting Carpatsky Stockholders") to seek an
appraisal of the fair value  thereof as provided in Section 262 of Delaware Law,
and each share of common stock,  $.01 per share par value, of Acquisition  Corp.
("Acquisition Corp. Common Stock") issued and outstanding  immediately prior the
Effective  Time,  will be converted at the Effective  Time into one share of New
Carpatsky Common Stock.

         C. Pursuant to the provisions of those certain letter agreements by and
between Pease and the holders (the "Pease Preferred Stockholders") of all of the
issued  and  outstanding  shares  of  Series  B 5%  PIK  Cumulative  Convertible
Preferred Stock,  par value $.01 per share ("Pease  Preferred  Stock"),  of even
date  herewith  in  substantially  the  form of  Exhibit  A hereto  (the  "Pease
Preferred  Stockholder  Agreements"),  at the Effective  Time and subject to the
provisions of Article II hereof,  each share of Pease Preferred Stock issued and
outstanding  immediately  prior  to the  Effective  Time  (excluding  any  Pease
Preferred  Stock held in  treasury  or owned by Pease or any direct or  indirect
subsidiary  of Pease  immediately  prior to the  Effective  Time which  shall be
canceled and extinguished) shall be exchanged (the "Exchange") into the right to
receive  8,865,665  shares of Pease  Common  Stock (the "Pease  Preferred  Stock
Exchange Ratio").



                                        3

<PAGE>



         D.  Following  the  consummation  of  the  Merger,  the  fully  diluted
ownership of the common stock of the Surviving Corporation will be:

                                                    Number          Percent
Pease Common Stockholders                         1,688,698          1.65%
Pease Preferred Stockholders                      8,865,665          8.66%
Pease Option and Warrant holders                    393,811           .38%
Carpatsky Common Stockholders                    44,959,557         43.91%
Carpatsky Preferred Stockholders                 28,920,984         28.25%
Carpatsky Warrant holders                        17,448,263         17.04%
Carpatsky Option holders                            115,684           .11%
                                               -------------     -----------

                                                102,392,662         100.0%

         E. In the Purchase  Agreement (as defined in the Amendment)  Bellwether
has agreed to vote for the Redomestication and Merger,  subject to the terms and
conditions  of  the  Merger  Agreement,   and  when  Bellwether  votes  for  the
Redomestication  and Merger it will no longer be able to exercise its dissenters
rights of appraisal;

         F. The Board of Directors of Pease has determined that the Exchange and
the  Merger,  as  amended  by the  First  Amendment  to  Merger  Agreement,  are
consistent with and in furtherance of the long-term  business  strategy of Pease
and are fair to, and in the best  interests of, Pease and its  stockholders  and
has approved and adopted this Agreement,  including the issuance of Pease Common
Stock, and the other transactions contemplated hereby.

         G.  The  Board  of  Directors  of  Carpatsky  has  determined  that the
Redomestication  and  Merger,  as  amended  by the  First  Amendment  to  Merger
Agreement,  are consistent  with and in  furtherance  of the long-term  business
strategy of Carpatsky and are fair to, and in the best  interests of,  Carpatsky
and its  stockholders  and has  approved  and  adopted  this  Agreement  and the
transactions contemplated hereby.

         H.  For  federal   income  tax  purposes,   it  is  intended  that  the
Redomestication,   the   Exchange   and  the   Merger   qualify  as  a  tax-free
reorganizations  under the relevant  provisions  of the United  States  Internal
Revenue Code of 1986, as amended (the "Code").

         Section 2.2 Amendment to Article II of the Merger Agreement. Article II
of  the  Merger  Agreement  entitled  "CONVERSION  OF  SECURITIES;  EXCHANGE  OF
CERTIFICATES" is hereby amended to read in its entirety as follows:



                                        4

<PAGE>



                                   ARTICLE II

               CONVERSION OF SECURITIES; EXCHANGE OF CERTIFICATES

         Section  2.01 Merger  Consideration;  Conversion  and  Cancellation  of
Securities.  At the Effective Time, by virtue of the  Redomestication and Merger
and  without  any  action  on the  part  of  Carpatsky,  New  Carpatsky,  Pease,
Acquisition Corp. or their respective stockholders:

                  (a)      Subject to the other provisions of this Article II,

                           (i) each share of New  Carpatsky  Common Stock issued
         and outstanding  immediately prior to the Effective Time (excluding any
         Carpatsky  Common Stock  described in Section 2.01(c) of this Agreement
         and  shares  held  by  Dissenting  Carpatsky   Stockholders)  shall  be
         converted  into the right to  receive  0.57842  shares of Pease  Common
         Stock (the "Carpatsky Common Stock Exchange Ratio");

                           (ii)  each  share of New  Carpatsky  Preferred  Stock
         issued  and  outstanding   immediately  prior  to  the  Effective  Time
         (excluding any Carpatsky  Preferred  Stock described in Section 2.01(c)
         of this Agreement and shares held by Dissenting Carpatsky Stockholders)
         shall be  converted  into the right to  receive  one share of New Pease
         Preferred Stock (the "Carpatsky Preferred Stock Exchange Ratio"); and

                           (iii) each share of  Acquisition  Corp.  Common Stock
         issued and  outstanding  at the Effective  Time shall be converted into
         the right to  receive  one share of New  Carpatsky  Common  Stock.  The
         Carpatsky  Common Stock Exchange Ratio,  the Carpatsky  Preferred Stock
         Exchange  Ratio  and the  Pease  Preferred  Stock  Exchange  Ratio  are
         referred to herein collectively as the "Exchange Ratios".

         Notwithstanding   the  foregoing,   except  as   contemplated  by  this
Agreement,  if between the date of this  Agreement  and the  Effective  Time the
outstanding shares of Old or New Carpatsky Common Stock, Old Carpatsky Preferred
Shares,  New Carpatsky  Preferred Stock or Pease Common Stock or Pease Preferred
Stock shall have been changed  into a different  number of shares or a different
class,  by  reason  of  any  stock  dividend,   subdivision,   reclassification,
conversion,  recapitalization,  split,  combination  or exchange of shares,  the
Exchange  Ratios  shall  be  correspondingly  adjusted  to  reflect  such  stock
dividend, subdivision,  reclassification,  conversion, recapitalization,  split,
combination or exchange of shares.

                  (b) Subject to the other  provisions  of this  Article II, the
rights to acquire shares of Carpatsky Common Stock previously  granted and to be
granted  pursuant to the  Carpatsky  Options (as  hereinafter  defined)  and the
Carpatsky Warrants (as hereinafter  defined) and to certain other persons and in
the  amounts  identified  in Schedule  4.03(b)(i)  of the  Carpatsky  Disclosure
Schedule (as  hereinafter  defined) shall be adjusted as of and at the Effective



                                        5

<PAGE>


Time,  in accordance  with the  provisions  of such  agreements,  to reflect the
Carpatsky Common Stock Exchange Ratio.

                  (c)  Notwithstanding  any  provision of this  Agreement to the
contrary, each share of Carpatsky Common Stock or Carpatsky Preferred Stock held
in the  treasury  of  Carpatsky  and each  share of  Carpatsky  Common  Stock or
Carpatsky Preferred Stock owned by Pease or Acquisition Corp., respectively,  or
any  direct or  indirect  wholly  owned  subsidiary  of  Carpatsky  or of Pease,
immediately  prior to the  Effective  Time shall be  canceled  and  extinguished
without  any  conversion  thereof  and no  payment  shall be made  with  respect
thereto.

                  (d) Subject to the provisions of Section  2.01(f),  all shares
of Carpatsky  Common Stock (other than shares of New Carpatsky Common Stock held
by Pease at the Effective  Time),  Carpatsky  Preferred  Stock,  Pease Preferred
Stock and Acquisition Corp. Common Stock shall cease to be outstanding and shall
automatically  be  canceled  and  retired,   and  each  certificate   previously
evidencing Carpatsky Common Stock, Carpatsky Preferred Stock and Pease Preferred
Stock  immediately  prior to the  Effective  Time  (the  "Converted  Shares"  or
"Converted Share  Certificates," as the case may be) shall thereafter  represent
the right to receive, subject to Section 2.02(g) of this Agreement,  that number
of shares of Pease Common Stock or New Pease Preferred Stock determined pursuant
to Section 2.01(a) hereof or, if applicable,  cash pursuant to Sections  2.01(f)
or  2.02(f) of this  Agreement  (the  "Merger  Consideration").  The  holders of
Converted Share Certificates shall cease to have any rights with respect to such
Converted  Shares except as otherwise  provided herein or by law. Such Converted
Share Certificates  shall be exchanged for certificates  evidencing whole shares
of Pease Common Stock or New Pease  Preferred  Stock upon the  surrender of such
Converted  Share  Certificates in accordance with the provisions of Section 2.02
of this Agreement,  without interest. No fractional shares of Pease Common Stock
or New Pease  Preferred Stock shall be issued in connection with the Merger and,
in lieu thereof,  a cash payment  shall be made  pursuant to Section  2.02(f) of
this  Agreement.   Each  share  of  Acquisition  Corp.  Common  Stock  shall  be
automatically converted into one share of New Carpatsky Common Stock.

                  (e) All shares of Pease Common  Stock and New Pease  Preferred
Stock  issued  to the  former  holders  of  Carpatsky  Common  Stock,  Carpatsky
Preferred  Stock and Pease  Preferred  Stock in the Merger  shall be  registered
under the Securities Act of 1933, as amended (the "Securities Act").

                  (f)   Notwithstanding   anything  in  this  Agreement  to  the
contrary,  any issued and outstanding  shares of capital stock of Carpatsky held
by a  Dissenting  Carpatsky  Stockholder  who  has not  voted  in  favor  of nor
consented to the  Redomestication  or the Merger and who  complies  with all the
provisions of the ABCA or Delaware Law  concerning  the right of holders of such
stock to dissent from the Redomestication or the Merger and to require appraisal
of their  shares,  shall not be converted  as  described in Section  2.01(a) but
shall  become,  at the  Effective  Time, by virtue of the Merger and without any
further action,  the right to receive such consideration as may be determined to
be due to such Dissenting Carpatsky Stockholder pursuant to the ABCA or Delaware


                                        6

<PAGE>



Law, as the case may be;  provided,  however,  that shares of  Carpatsky  Common
Stock  or  Carpatsky  Preferred  Stock  outstanding  immediately  prior  to  the
Effective Time and held by a Dissenting  Carpatsky  Stockholder who shall, after
the  Effective  Time,  withdraw  his demand for  appraisal  or lose his right of
appraisal,  in either case pursuant to the ABCA or Delaware Law, as the case may
be, shall be deemed to be converted as of the Effective  Time, into the right to
receive Pease Common Stock or New Pease Preferred Stock, respectively.

         Section 2.02 Exchange and Surrender of Certificates.

                  (a)  Subject to Section  2.02(h)  below,  as of the  Effective
Time,  Pease  shall  deposit,  or shall  cause  to be  deposited  with  American
Securities  Transfer & Trust,  Inc.,  12039 West Alameda Parkway,  Lakewood,  CO
80228 (the "US Exchange Agent") and, if required by regulatory authorities, CIBC
Mellon Trust Company (the  "Canadian  Exchange  Agent";  the US Exchange and the
Canadian  Exchange  Agent are  collectively  referred to herein as the "Exchange
Agents"),  for the benefit of the holders of Converted Share  Certificates,  for
exchange in accordance with this Article II, the Merger Consideration,  together
with any dividends,  distributions or payments  pursuant to Section 2.02(e) with
respect thereto (hereinafter referred to as the "Exchange Fund").

                  (b) As soon as  reasonably  practicable  after  the  Effective
Time,  the  Exchange  Agents  shall  mail to each  holder of record of shares of
Carpatsky Common Stock,  Carpatsky Preferred Stock and Pease Preferred Stock who
have not exchanged their Converted Share Certificates as contemplated by Section
2.02(h),  immediately prior to the Effective Time a letter of transmittal (which
shall specify that delivery shall be effected, and risk of loss and title to the
Converted  Share  Certificates  shall pass,  only upon delivery of the Converted
Share  Certificates to the Exchange Agents,  and which shall be in such form and
have such other provisions as Pease may reasonably specify) and instructions for
use in effecting the surrender of the Converted  Share  Certificates in exchange
for  certificates  representing  shares  of  Pease  Common  Stock  or New  Pease
Preferred Stock issuable pursuant to Section 2.01 in exchange for such Converted
Share  Certificates.  Upon  surrender  of  a  Converted  Share  Certificate  for
cancellation to the Exchange  Agents,  together with such letter of transmittal,
duly executed,  the holder of such Converted Share Certificate shall be entitled
to receive in exchange therefor a certificate  representing that number of whole
shares of Pease Common Stock or New Pease  Preferred  Stock (as the case may be)
which such holder has the right to receive in exchange for the  Converted  Share
Certificate  surrendered  pursuant to the  provisions  of this Article II (after
taking into  account all  Converted  Shares then held by such  holder),  and the
Converted Share Certificates so surrendered shall forthwith be canceled.  In the
event of a transfer of ownership of Carpatsky Common Stock,  Carpatsky Preferred
Stock or Pease Preferred  Stock which is not registered in the transfer  records
of Carpatsky or Pease as the case may be, a certificate  representing the proper
number of  shares of Pease  Common  Stock or New  Pease  Preferred  Stock may be
issued to a transferee  if the Converted  Share  Certificate  representing  such
Carpatsky  Common Stock,  Carpatsky  Preferred Stock or Pease Preferred Stock is
presented to the  Exchange  Agents,  accompanied  by all  documents  required to
evidence and effect such  transfer  and by evidence  that any  applicable  stock


                                       7

<PAGE>



transfer taxes have been paid. Until surrendered as contemplated by this Section
2.02,  each Converted  Share  Certificate  shall be deemed at any time after the
Effective Time to represent  only the Pease Common Stock or New Pease  Preferred
Stock  into which the  Converted  Shares  represented  by such  Converted  Share
Certificate  have been converted as provided in this Article II and the right to
receive  upon  such  surrender  cash in lieu of any  fractional  shares of Pease
Common Stock or New Pease Preferred Stock as contemplated by Section 2.02(f).

                  (c)  After  the  Effective  Time,  there  shall be no  further
registration of transfers of Carpatsky Common Stock,  Carpatsky  Preferred Stock
or  Pease  Preferred   Stock.   If,  after  the  Effective  Time,   certificates
representing  shares of Carpatsky  Common Stock,  Carpatsky  Preferred  Stock or
Pease Preferred Stock are presented to Pease or the Exchange Agents,  they shall
be canceled  and  exchanged  for the Merger  Consideration  provided for in this
Agreement in accordance with the procedures set forth herein.

                  (d) Any portion of the Merger  Consideration  or the  Exchange
Fund made  available to the  Exchange  Agents  pursuant to Section  2.02(a) that
remains unclaimed by the holders of shares of Carpatsky Common Stock,  Carpatsky
Preferred Stock or Pease Preferred Stock one year after the Effective Time shall
be returned to Pease upon demand,  and any such holder who has not exchanged its
shares of Carpatsky Common Stock,  Carpatsky  Preferred Stock or Pease Preferred
Stock in accordance  with this Section 2.02 prior to that time shall  thereafter
look only to Pease for  payment  of the Merger  Consideration  in respect of its
shares of Carpatsky Common Stock,  Carpatsky  Preferred Stock or Pease Preferred
Stock. Notwithstanding the foregoing, Pease shall not be liable to any holder of
Converted Shares for any amount paid to a public official pursuant to applicable
abandoned property, escheat or similar laws.

                  (e) No dividends, interest or other distributions with respect
to shares of Pease  Common Stock or New Pease  Preferred  Stock shall be paid to
the holder of any unsurrendered  Converted Share  Certificates  unless and until
such Converted  Share  Certificates  are surrendered as provided in this Section
2.02. Upon such surrender,  Pease shall pay, without interest, all dividends and
other  distributions  payable in respect of such shares of Pease Common Stock or
New Pease  Preferred  Stock on a date  subsequent to, and in respect of a record
date after, the Effective Time.

                  (f) No certificates or scrip evidencing  fractional  shares of
Pease  Common  Stock or New  Pease  Preferred  Stock  shall be  issued  upon the
surrender  for exchange of Converted  Share  Certificates,  and such  fractional
share  interests  shall  not  entitle  the  owner  thereof  to any  rights  as a
stockholder of Pease. In lieu of any such fractional interests, each holder of a
Converted  Share  Certificate  shall,  upon  surrender of such  certificate  for
exchange  pursuant  to this  Article  II,  be paid an  amount  in cash  (without
interest),  rounded to the nearest cent, determined by multiplying the last sale
price of the Pease  Common  Stock in the  Over-the-Counter  market  prior to the
Closing  Date by the  fractional  share  of  Pease  Common  Stock  or New  Pease
Preferred Stock (on an as converted  basis) to which such holder would otherwise
be entitled  (after taking into account all  Converted  Shares held of record by
such holder at the Effective Time).


                                        8

<PAGE>



                  (g) Pease shall be entitled  to deduct and  withhold  from the
consideration  otherwise payable pursuant to this Agreement to any former holder
of Carpatsky  Common Stock,  Carpatsky  Preferred Stock or Pease Preferred Stock
such  amounts as Pease (or any  affiliate  thereof)  is  required  to deduct and
withhold  with  respect to the  making of such  payment  under the Code,  or any
provision of state,  local or foreign tax law. To the extent that amounts are so
withheld by Pease,  such  withheld  amounts shall be treated for all purposes of
this Agreement as having been paid to the former holder of the Carpatsky  Common
Stock,  Carpatsky  Preferred  Stock or Pease Preferred Stock in respect of which
such  deduction and  withholding  was made. In the event the amount  withheld is
insufficient  so to  satisfy  the  withholding  obligations  of  Pease,  (or any
affiliate  thereof),  such former  stockholder  shall  reimburse  Pease (or such
affiliate),   at  its   request,   the   amount   of  any  such   insufficiency.
Notwithstanding  the  foregoing,  no such  withholding  shall be  required  with
respect to any shares of Carpatsky  Preferred Stock or New Pease Preferred Stock
issued  or   issuable   in  the  Merger  to   Bellwether   Exploration   Company
("Bellwether").

                  (h) Bellwether shall be entitled,  at its election,  to attend
the Closing of the Merger and to tender at such  Closing to Pease the  Converted
Share  Certificates  held  by  Bellwether  duly  endorsed  for  transfer  to New
Carpatsky,   and  shall  be  entitled  to  receive  certificates  registered  in
Bellwether's  name  representing  the number of shares of Pease Common Stock and
New Pease Preferred Stock to which Bellwether is entitled under this Agreement.

         Section 2.03  Amendment to Article III. The  following  amendments  are
hereby made to the Sections of Article III of the Merger Agreement as indicated:

                  (a) Section 3.03(d) is amended to add the words "and New Pease
Preferred  Stock" after the words  "Pease  Common  Stock" in the first  sentence
thereof.

                  (b)  Section  3.04 is  amended to add the words "and New Pease
Preferred  Stock" after the words "Pease  Common  Stock" in the first and second
sentence thereof.

                  (c) Section  3.12(b) is amended to add the words "or New Pease
Preferred Stock" after the words "Pease Common Stock."

         Section 2.04  Amendment  to Article IV. The  following  amendments  are
hereby made to the Sections of Article IV of the Merger Agreement as indicated:

                  (a)   Section   4.03(a)  is  amended  to  replace  the  number
77,728,263 for  40,796,246;  and to add the words ", and an unlimited  number of
shares  of  Old  Carpatsky   Preferred   Stock"  after  the  words  "issued  and
outstanding".

                  (b) Section  4.03(b) is amended to add the words "or Preferred
Stock" after the words "Common Stock" in the second sentence thereof.



                                        9

<PAGE>



                  (c)  Section  4.04 is amended to add the words "and  Preferred
Stock" after the words "Common Stock" in the second sentence thereof.

                  (d)  Section  4.11(c)  is  amended  to add the words  "and Old
Carpatsky  Preferred Shares" after the words "Old Carpatsky Common Stock" in the
two locations where such words appear, to add the words "and New Pease Preferred
Stock"  after the words "Pease  Common  Stock" in the two  locations  where such
words appear and to add the words "and Preferred  Stock" after the words "Common
Stock" in the two locations where such words appear in the parenthetical to such
sentence.

                  (e)  Section  4.12 is amended to add the words "and  Preferred
Shares voting together as a class" after "Old Carpatsky  Common Stock" in clause
(i) and to add the words "and Preferred  Stock voting together as a class" after
the words "New Carpatsky Common Stock" in clause (ii).

         Section 2.05 Amendment to Article VI. Section  6.02(a) of Article VI of
the Merger Agreement is hereby amended to add the words "and New Pease Preferred
Stock" after the words "Pease  Common  Stock" in the first and second  sentences
thereof.

         Section 2.06  Amendment to Article VII. The  following  amendments  are
hereby made to the Sections of Article VII the Merger Agreement as indicated.

                  (a) The first  sentence of Section  7.01(b) is amended to read
as follows:

         "(b)  Stockholder  Approval.  The  Amendment,  this  Agreement  and the
         issuance of the Pease shares  described in this Agreement in connection
         with the Merger shall have been  approved and adopted by the  requisite
         vote  of the  stockholders  of  Pease,  and the  Redomestication,  this
         Agreement  and the Merger  shall have been  approved and adopted by the
         requisite vote of the stockholders of Carpatsky."

                  (b) Section  7.02(e)(2)  is amended to read in its entirety as
follows:

         "(2)  Carpatsky  shall have  received  the  written  opinion of Messrs.
         Feleski Flynn, Calgary, Alberta dated the Closing Date, the effect that
         the  tax  consequences  to  Canadian  stockholder  of  Carpatsky  under
         Canadian  income  tax laws  shall be  consistent  with the  description
         thereof  included  in Form S-4 at the  time  the  Form S-4 is  declared
         effective."

                  (c) Section 7.02(h) and 7.03(g),  requiring  "comfort letters"
from auditors of Pease and Carpatsky, are deleted.

                  (d) Section 7.03(h) is amended to add the words "and Preferred
Stock"  after the words  "Carpatsky  Common  Stock" in the two places where such
words appear.



                                       10

<PAGE>



                  (e)  Section  7.03(l) is amended  to read in its  entirety  as
follows:

         "(l) Carpatsky Financial Statements. Carpatsky shall have completed and
         obtained  audits  of its  financial  statements  for  the  years  ended
         December 31, 1997 and 1998 and completed its financial  statements  for
         the fiscal  periods ended  September 30, 1998 and 1999, all by December
         31, 1999.  Assuming such  financial  statements  have accounted for the
         Ukrainian joint ventures using proportionate consolidation,  they shall
         reflect the following (to the extent provided below):

                           (i) A working  capital  deficit for  Carpatsky,  on a
         proportionately consolidated basis, as of September 30, 1999 no greater
         than $5,000,000. For purposes of this calculation,  any amount received
         under  Carpatsky's $1.0 private placement of securities may be added to
         current  assets as at September  30, 1999 and debt  actually  converted
         into equity may be deleted as at  September  30,  1999,  on a pro forma
         basis.

                           (ii)    Total   long   term    liabilities,    on   a
         proportionately  consolidated basis, as at September 30, 1999 shall not
         exceed $550,000 (excluding accrued interest payable).

                           (iii)  The  balance  due to the joint  account  as at
         September 30, 1999 for Carpatsky's  working interest in the RC Field in
         the Ukraine does not exceed $6.75 million.

                           (iv) Carpatsky's net revenue interest in the RC Field
         shall not be less than 19.7% on October 1, 1999.

                           (v) Carpatsky or its  subsidiaries  is delivering gas
         for sale by  Closing  of the Merger  under  such  reasonable  gas sales
         arrangements  as Pease shall have approved in writing,  which  approval
         shall not be unreasonably withheld.

                           (vi) Carpatsky,  its  subsidiaries or Ukrainian joint
         ventures have commenced  receiving  payment for at least 90% of the gas
         sold pursuant to 7.03(l)(v) above by the Closing of the Merger and that
         reasonable assurance can be given that future payments will continue to
         be received.

                           (vii)    [This subsection has been deleted.]"

                  Section  2.07  Amendment  to  Section  8.01 of  Article  VIII.
Section 8.01 is amended by changing the words  "December 31, 1999" to "March 31,
2000" and  changing  the words "March 31, 2000" to "April 30, 2000" and the last
clause of such section, ("to receive . . . merger") shall be deleted.




                                       11

<PAGE>



                ARTICLE III. AMENDMENTS TO EXHIBITS AND SCHEDULES

         Section 3.1 Amendments to Exhibits.  The following Exhibits to the
Merger Agreement are added or amended as indicated below:

                  (a)  The  following  Exhibits  to  are  added  to  the  Merger
Agreement in the form attached to this Amendment:

                           Exhibit A     Preferred Stock Designation for New
                                         Carpatsky

                           Exhibit B     Preferred Stock Designation for Pease

                  (b) The following amendments are made to the Exhibits attached
to the Merger Agreement:

                           Exhibit A to the Merger Agreement (changes to Pease
preferred stockholder agreements) is amended as reflected on the attachment
hereto.

                           Exhibit B-4 is amended to read in its entirety as
Exhibit B-4 attached hereto.

         Section 3.2 Amendment to Schedules.  The following Schedules to the
Merger Agreement are hereby amended as follows:

                  (a)  Schedule  1.05 is  amended  to read  in its  entirety  as
Schedule 1.05 attached hereto.

                  (b) Schedules 4.01,  4.03(b)(iii),  4.07(ii), 4.08, 4.11, 4.17
and 4.19 are  amended to add the  following  language:  "The  letter from Krug &
Sobel, LLC addressed to the Pease Board of Directors,  dated August 19, 1999, is
incorporated  into this Schedule and the entire text of such letter is deemed to
be included herein."

                  (c)  Schedules  4.01(c),  4.03(b)(iii),   4.03(c)B  (regarding
Melman  Shares),  4.08 and 4.11  (regarding  taxes),  4.19(A)  are  modified  or
replaced as reflected on the attachments to this Amendment:

                         ARTICLE IV. GENERAL PROVISIONS

         Section  4.1 No Other  Changes.  Except as  otherwise  changed  by this
Amendment, the Merger Agreement shall remain in full force and effect, unaltered
by this Amendment.



                                       12

<PAGE>



         Section 4.2 Multiple  Counterparts.  This  Amendment may be executed in
multiple  counterparts,  each of which  shall be an  original,  and all of which
taken together shall be one instrument.

         IN WITNESS  WHEREOF,  this  Amendment was executed as of the date above
first written.

                                   PEASE OIL AND GAS COMPANY


                                   By:
                                      ----------------------------------------
                                      Name:  Patrick J. Duncan
                                      Title:   President


                                   CPI ACQUISISTION CORP.


                                   By:
                                      ----------------------------------------
                                      Name:
                                      Title:


                                   CARPATSKY PETROLEUM, INC.


                                   By:
                                      ----------------------------------------
                                      Name:  David A. Melman
                                      Title:   Chief Corporate Officer








                                       13

<PAGE>



                                    Exhibit A
                                       to
                       First Amendment to Merger Agreement
                             dated December 30, 1999


                         [NEW CARPATSKY PETROLEUM, INC.]

                           CERTIFICATE OF DESIGNATION
                         OF CONVERTIBLE PREFERRED STOCK,
                       SERIES A SETTING FORTH THE POWERS,
                      PREFERENCES, RIGHTS, QUALIFICATIONS,
                         LIMITATIONS AND RESTRICTIONS OF
                              SUCH PREFERRED STOCK

         Pursuant  to the  Delaware  General  Corporation  Law,  [NEW  CARPATSKY
PETROLEUM,  INC.],  a Delaware  corporation  (the  "Corporation"),  DOES  HEREBY
CERTIFY:

         That pursuant to the authority conferred upon the Board of Directors of
the  Corporation  by the  Articles  of  Incorporation  of the  Corporation  (the
"Charter"),  the Board of Directors of the Corporation on [ ], 2000 duly adopted
the  following  resolution  creating a series of Preferred  Stock  designated as
Convertible  Preferred Stock, Series A and such resolution has not been modified
and is in full force and effect on the date hereof:

         RESOLVED  that,  pursuant  to the  authority  vested  in the  Board  of
Directors of the Corporation in accordance with the provisions of the Charter, a
series of authorized  Preferred Stock, without par value, of the Corporation are
hereby  created and that the  designation  and number of shares  thereof and the
voting  powers,  preferences  and  relative,  participating,  optional and other
special  rights  of the  shares  of such  series  of  Preferred  Stock,  and the
qualifications, limitations and restrictions thereof are as follows:

         Section 1.        Designation and Number.

         (a) The shares of such series of Preferred Stock shall be designated as
"Convertible  Preferred  Stock,  Series A"  ("Preferred  Stock").  The number of
shares initially  constituting the Preferred Stock shall be 102,410,000  shares,
which number may be  increased or decreased by the Board of Directors  without a
vote of stockholders;  provided,  however, that such number may not be decreased
below the number of then outstanding shares of such series of Preferred Stock.

         (b) The Preferred  Stock shall,  with respect to rights on liquidation,
dissolution  or winding up, rank prior to all other classes and series of Junior
Stock  of  the  Corporation  now  or  hereafter  authorized  including,  without
limitation, the Common Stock.

         (c) Capitalized  terms used herein and not otherwise defined shall have
the meanings set forth in Section 10 below.


         Section 2.        Dividends and Distributions.

         In the event that the  Corporation  shall  declare a cash  dividend  to
holders of Common  Stock,  then the Board of Directors  shall  declare,  and the
holder of each share of Preferred Stock shall be entitled to receive, a dividend
in an amount  equal to the amount of such  dividend  received by a holder of the
number of shares of Common  Stock for which  such  share of  Preferred  Stock is
convertible on the record date for such dividend.  Any such amount shall be paid
to the holders of shares of  Preferred  Stock at the same time such  dividend is
made to holders of Common Stock.

         The  holders of shares of  Preferred  Stock  shall not be  entitled  to
receive any dividends or other distributions except as provided herein.

         Section 3.        Voting Rights.

         In addition to any voting rights  provided by law and except where only
a specified class or series of shares is entitled to vote, the holders of shares
of Preferred Stock shall have the following voting rights:


<PAGE>

         (a) Except as otherwise  required by applicable  law and so long as the
Preferred Stock is outstanding,  each share of Preferred Stock shall entitle the
holder thereof to vote, in person or by proxy or written  consent,  at a special
or annual meeting of stockholders  or in connection with any stockholder  action
taken in lieu of a meeting of  stockholders,  on all matters voted on by holders
of Common  Stock,  including  the election of  directors,  voting  together as a
single class with all other shares entitled to vote thereon. With respect to any
such vote,  each share of Preferred  Stock shall  entitle the holder  thereof to
cast one vote for each share of Preferred  Stock  standing in his or her name on
the transfer books of the  Corporation as of the record date for determining the
stockholders of the Corporation eligible to vote on any such matters.

         (b) Unless the consent or approval of a greater  number of shares shall
then be required by law, the affirmative vote of the holders of at least 66-2/3%
of the  outstanding  shares of Preferred  Stock,  voting  separately as a single
class,  in person or by proxy,  at a special or annual  meeting of  stockholders
called for the purpose, shall be necessary to (i) authorize, adopt or approve an
amendment  to the Charter  that would  increase or decrease the par value of the
shares of Preferred Stock, or alter or change the powers, preferences or special
rights of the shares of Preferred Stock, (ii) amend, alter or repeal the Charter
so as to affect the shares of  Preferred  Stock  adversely,  including,  without
limitation,  by  granting  any  voting  right to any  holder  of  notes,  bonds,
debentures or other debt  obligations of the  Corporation,  or (iii)  authorize,
increase the authorized  number of shares of, or issue  (including on conversion
or   exchange   of   any   convertible   or   exchangeable   securities   or  by
reclassification)  any additional shares of Preferred Stock except under Section
9.

         (c) For so long as the shares of Preferred Stock are  outstanding,  the
Corporation  shall not issue any capital stock  entitling the holder  thereof to
vote generally under ordinary circumstances in the election of directors,  other
than (i) Common Stock and (ii) Preferred Stock issued pursuant to Section 9.

         Section 4.        Redemption.

         The  Corporation  shall  not have any  right to  redeem  any  shares of
Preferred Stock.

         Section 5.        Reacquired Shares.

         Any shares of Preferred Stock converted, exchanged, redeemed, purchased
or  otherwise  acquired by the  Corporation  in any manner  whatsoever  shall be
retired and cancelled promptly after the acquisition thereof. All such shares of
Preferred  Stock shall upon their  cancellation  become  authorized but unissued
shares of preferred stock.

         Section 6.        Liquidation, Dissolution or Winding Up.

         (a) If the Corporation shall commence a voluntary case under the United
States bankruptcy laws or any applicable  bankruptcy,  insolvency or similar law
of any other  country,  or  consent  to the  entry of an order for  relief in an
involuntary  case  under  any  such  law or to the  appointment  of a  receiver,
liquidator,   assignee,  custodian,  trustee,  sequestrator  (or  other  similar
official) of the Corporation or of any substantial part of its property, or make
an  assignment  for the  benefit  of its  creditors,  or  admit in  writing  its
inability  to pay its debts  generally  as they  become due (any such  event,  a
"Voluntary Liquidation Event"), or if a decree or order for relief in respect of
the Corporation shall be entered by a court having  jurisdiction in the premises
in an involuntary case under the United States bankruptcy laws or any applicable
bankruptcy,  insolvency  or similar law of any other  country,  or  appointing a
receiver,  liquidator,  assignee,  custodian,  trustee,  sequestrator  (or other
similar official) of the Corporation or of any substantial part of its property,
or ordering the winding up or liquidation of its affairs,  and on account of any
such  event the  Corporation  shall  liquidate,  dissolve  or wind up, or if the
Corporation shall otherwise  liquidate,  dissolve or wind up, the holders of the
Preferred Stock shall be entitled to receive the Liquidation Amount prior to any
payment being made or any property of the Corporation  being  distributed to the

<PAGE>


holders of the Common Stock or the holders of any Junior Stock. After payment to
the holders of the Preferred Stock of the Liquidation Amount, the holders of the
Preferred  Stock shall be entitled to receive  (rateably with the holders of the
Common  Shares) for each share of Preferred  Stock held,  the amount which would
have been received by the Holder of such  Preferred  Stock if on the record date
for such  distribution,  the holder of such  Preferred  Stock had converted such
Preferred  Stock  into the  number of shares of Common  Stock  into  which  such
Preferred Stock was convertible on the record date for such distribution.


         (b) Neither the consolidation or merger of the Corporation with or into
any other Person nor the sale or other  distribution to another Person of all or
substantially  all the assets,  property or business of the Corporation shall be
deemed to be a  liquidation,  dissolution or winding up of the  Corporation  for
purposes of this Section 6.

         Section 7.        Conversion.

         (a) Subject to the terms and conditions set forth herein, each share of
Preferred  Stock  shall  be  convertible   into  a  number  of  fully  paid  and
non-assessable shares of Common Stock as is equal, subject to Section 7(g), to a
fraction, the numerator of which shall be the Common Stock Conversion Number and
the denominator of which shall be the number of shares of Preferred Stock issued
and outstanding on the date of conversion.  The Common Stock  Conversion  Number
shall  initially be 50,000,000,  and shall be subject to adjustment as set forth
in this Section. Such conversion right may only be exercised by the holders of a
majority of the outstanding shares of Preferred Stock surrendering  certificates
("Surrendered  Certificates")  representing a majority of the outstanding shares
of Preferred Stock to the Corporation at any time during usual business hours at
its principal  place of business to be maintained by it,  accompanied by written
notice  that the holders of a majority of the  outstanding  shares of  Preferred
Stock  elect to convert  such  shares  and  specifying  the name or names  (with
address) in which a certificate or  certificates  for shares of Common Stock are
to be issued and (if so required by the Corporation) by a written  instrument or
instruments of transfer in form reasonably  satisfactory to the Corporation duly
executed by the holder or its duly authorized legal  representative and transfer
tax stamps or funds  therefor,  if required  pursuant to Section 7(j). Upon such
surrender,  all shares of Preferred Stock shall  automatically be converted into
Common  Stock  as  provided  in  this  Section.  Notwithstanding  the  foregoing
provisions  or anything  set forth herein or in the  Certificate,  any shares of
Preferred  Stock  remaining  outstanding  on  December  28, 2004 shall be and be
deemed to have been converted into Common Stock at the Conversion Number then in
effect.

         (b) As promptly as practicable after the surrender, as herein provided,
of shares of  Preferred  Stock for  conversion  pursuant  to Section  7(a),  the
Corporation  shall  deliver to all holders of Preferred  Stock a written  notice
informing  such  holders (i) that the  holders of a majority of the  outstanding
shares of Preferred Stock have delivered their  certificates  for such shares to
the Corporation in satisfactory  form for conversion into Common Shares pursuant
to the  requirements  of this Section 7, (ii) that, as result of such  delivery,
all  outstanding  Preferred  Stock has been  converted into the right to receive
Common Stock and (iii) of the Common  Stock  Conversion  Number and  instructing
such holders to surrender the certificates representing their Preferred Stock to
the  Corporation  in the  manner  specified  in  Section  7(a) above in order to
receive  certificates   representing  the  Common  Stock  deliverable  upon  the
conversion  of their  Preferred  Stock.  As  promptly as  practicable  after the
surrender of any  certificates  representing  Preferred Stock in accordance with
the requirements of this Section 7, the Corporation shall deliver to or upon the
written  order of the holder of such  shares so  surrendered  a  certificate  or
certificates  representing the number of fully paid and non-assessable shares of
Common  Stock  into  which such  shares of  Preferred  Stock may be or have been
converted in  accordance  with the  provisions of this Section 7. Subject to the

<PAGE>


following  provisions of this  paragraph and of Section  7(d),  such  conversion
shall be deemed to have been made immediately  prior to the close of business on
the date that such  shares of  Preferred  Stock shall have been  surrendered  in
satisfactory form for conversion,  and the Person or Persons entitled to receive
the Common Stock  deliverable  upon conversion of such shares of Preferred Stock
shall be treated for all purposes as having  become the record holder or holders
of such Common Stock at such  appropriate  time,  and such  conversion  shall be
based on the Common Stock  Conversion  Number in effect at such time;  provided,
however,  that no  surrender  shall be  effective  to  constitute  the Person or
Persons entitled to receive the Common Stock deliverable upon such conversion as
the record holder or holders of such Common Stock while the share transfer books
of the  Corporation  shall be closed  (but not for any  period in excess of five
days), but such surrender shall be effective to constitute the Person or Persons
entitled to receive  such Common Stock as the record  holder or holders  thereof
for all  purposes  immediately  prior  to the  close  of  business  on the  next
succeeding day on which such share transfer books are open, and such  conversion
shall be deemed to have been  made at,  and shall be based on the  Common  Stock
Conversion Number in effect at, such time on such next succeeding day.

         (c) To the extent  permitted by law, when shares of Preferred Stock are
converted, all dividends declared and unpaid on the Preferred Stock so converted
to the  date of  conversion  shall  be  immediately  due and  payable  and  must
accompany the shares of Common Stock issued upon such conversion.

         (d) The Common Stock  Conversion  Number shall be subject to adjustment
as follows:

                  (i) In case the Corporation  shall at any time or from time to
         time  (A) pay a  dividend  or make a  distribution  on the  outstanding
         shares of Common Stock in capital  stock  (which,  for purposes of this
         Section  7(d) shall  include,  without  limitation,  any  dividends  or
         distributions  in the form of  options,  warrants  or other  rights  to
         acquire   capital  stock)  of  the   Corporation,   (B)  subdivide  the
         outstanding  shares of Common Stock into a larger number of shares, (C)
         combine the outstanding shares of Common Stock into a smaller number of
         shares,   or  (D)  issue  any  shares  of  its   capital   stock  in  a
         reclassification  of the Common Stock then,  and in each such case, the
         Common  Stock  Conversion  Number in effect  immediately  prior to such
         event shall be adjusted to equal the Common Stock Conversion  Number in
         effect  immediately prior to such action multiplied by a fraction,  the
         numerator of which is the number of shares of Common Stock  outstanding
         after  the  action  described  in  clauses  (A)  through  (D)  and  the
         denominator   of  which  is  the  number  of  shares  of  Common  Stock
         outstanding  immediately  prior  to such  action.  An  adjustment  made
         pursuant to this Section 7(d)(i) shall become  effective  retroactively
         (A) in the  case  of  any  such  dividend  or  distribution,  to a date
         immediately  following the close of business on the record date for the
         determination  of  holders of Common  Stock  entitled  to receive  such
         dividend or  distribution  or (B) in the case of any such  subdivision,
         combination  or  reclassification,  to the close of business on the day
         upon which such corporate action becomes effective.

                  (ii) In case the Corporation shall at any time or from time to
         time issue shares of Common Stock (or  securities  convertible  into or
         exchangeable for Common Stock, or any options, warrants or other rights
         to acquire shares of Common Stock) for a  consideration  per share less
         than the Current  Market Price per share of Common Stock then in effect
         at the record date or issuance  date,  as the case may be (the "Date"),
         referred to in the following  sentence  (treating the consideration per
         share of any security  convertible or exchangeable or exercisable  into
         Common  Stock as equal to (A) the sum of the  price  for such  security
         convertible,  exchangeable  or  exercisable  into Common Stock plus any
         additional  consideration  payable (without regard to any anti-dilution
         adjustments) upon the conversion, exchange or exercise of such security
         into Common  Stock  divided by (B) the number of shares of Common Stock
         initially  underlying  such  convertible,  exchangeable  or exercisable

<PAGE>


         security),  then,  and in each such case,  the Common Stock  Conversion
         Number in effect  shall be adjusted  by  multiplying  the Common  Stock
         Conversion Number in effect on the day immediately prior to the Date by
         a fraction (x) the numerator of which shall be the sum of the number of
         shares  of Common  Stock  outstanding  on the Date  plus the  number of
         additional  shares of  Common  Stock  issued  or to be  issued  (or the
         maximum number into which such  convertible or exchangeable  securities
         initially may convert or exchange or for which such  options,  warrants
         or other rights  initially may be exercised) and (y) the denominator of
         which  shall  be the  sum of the  number  of  shares  of  Common  Stock
         outstanding on the Date plus the number of shares of Common Stock which
         the  aggregate  consideration  for the total number of such  additional
         shares of Common Stock (or securities  convertible into or exchangeable
         for Common Stock,  or any options,  warrants or other rights to acquire
         shares of Common  Stock) plus the  aggregate  amount of any  additional
         consideration  initially  payable (without regard to any  anti-dilution
         adjustments)  upon  such  conversion,  exchange  or  exercise  of  such
         security into Common Stock would  purchase at the Current  Market Price
         per share of Common Stock on the Date.  Such  adjustment  shall be made
         whenever such shares, securities, options, warrants or other rights are
         issued, and shall become effective  retroactively to a date immediately
         following  the  close  of  business  (i) in the  case  of  issuance  to
         stockholders  of the  Corporation,  as such, on the record date for the
         determination   of  stockholders   entitled  to  receive  such  shares,
         securities,  options,  warrants  or other  rights and (ii) in all other
         cases, on the date ("issuance  date") of such issuance;  provided that:
         (A) the  determination  as to whether an  adjustment  is required to be
         made pursuant to this Section  7(d)(ii) shall be made upon the issuance
         of such shares or such convertible or exchangeable securities, options,
         warrants  or  other  rights;  (B) if any  convertible  or  exchangeable
         securities, options, warrants or other rights (or any portions thereof)
         which shall have given rise to an  adjustment  pursuant to this Section
         7(d)(ii) shall have expired or terminated  without the exercise thereof
         and/or if by reason of the terms of such  convertible  or  exchangeable
         securities,  options, warrants or other rights there shall have been an
         increase or  increases  or decrease or  decreases,  with the passage of
         time or otherwise, in the price payable upon the exercise or conversion
         thereof,  then the Common Stock  Conversion  Number  hereunder shall be
         readjusted (but to no greater extent than  originally  adjusted) on the
         basis of (x) eliminating from the computation any additional  shares of
         Common  Stock   corresponding   to  such  convertible  or  exchangeable
         securities,  options, warrants or other rights as shall have expired or
         terminated, (y) treating the additional shares of Common Stock, if any,
         actually issued or issuable  pursuant to the previous  exercise of such
         convertible  or  exchangeable  securities,  options,  warrants or other
         rights as having been issued for the  consideration  actually  received
         and  receivable  therefor and (z) treating any of such  convertible  or
         exchangeable securities, options, warrants or other rights which remain
         outstanding  as being subject to exercise or conversion on the basis of
         such exercise or conversion  price as shall be in effect at the time of
         adjustment; and (C) no adjustment in the Common Stock Conversion Number
         shall be made  pursuant  to this  Section  7(d)(ii)  as a result of any
         issuance  of  securities  by the  Corporation  in  respect  of which an
         adjustment  to the Common Stock  Conversion  Number is made pursuant to
         Section 7(d)(i).

                  (iii) In the case the Corporation, at any time or from time to
         time,  shall take any action  affecting  its Common Stock similar to or
         having an effect  similar  to any of the  actions  described  in any of
         Section  7(d)(i)  and  Section  7(d)(ii),  or  Section  7(h)  (but  not
         including  any action  described in any such  Section) and the Board of
         Directors of the Corporation in good faith  determines that it would be
         equitable in the  circumstances  to adjust the Common Stock  Conversion
         Number as a result of such  action,  then,  and in each such case,  the
         Common Stock Conversion  Number shall be adjusted in such manner and at
         such time as the Board of  Directors of the  Corporation  in good faith
         determines would be equitable in the circumstances  (such determination
         to be evidenced  in a  resolution,  a certified  copy of which shall be
         mailed to the holders of the Preferred Stock).

<PAGE>


                  (iv)  Notwithstanding  anything  herein  to the  contrary,  no
         adjustment  under  this  Section  7(d)  shall be made upon the grant of
         options to  employees  or  directors  of the  Corporation  pursuant  to
         benefit plans approved by the Board of Directors of the  Corporation or
         upon the  issuance  of shares of Common  Stock  upon  exercise  of such
         options  if the  exercise  price  thereof  was not less than the Market
         Price of the Common Stock on the date such options were granted.

         (e) If the Corporation shall take a record of the holders of its Common
Stock  for the  purpose  of  entitling  them to  receive  a  dividend  or  other
distribution,  and shall  thereafter and before the distribution to stockholders
thereof   legally   abandon  its  plan  to  pay  or  deliver  such  dividend  or
distribution,  then  thereafter  no  adjustment  in the Common Stock  Conversion
Number then in effect shall be required by reason of the taking of such record.

         (f) Upon any  increase  or  decrease  in the  Common  Stock  Conversion
Number,  then, and in each such case, the Corporation  promptly shall deliver to
each  registered  holder of Preferred  Stock at least 10 Business  Days prior to
effecting  any  of the  foregoing  transactions  a  certificate,  signed  by the
President or a Vice-President and by the Treasurer or an Assistant  Treasurer or
the  Secretary or an Assistant  Secretary of the  Corporation,  setting forth in
reasonable  detail the event  requiring the  adjustment  and the method by which
such adjustment was calculated and specifying the increased or decreased  Common
Stock Conversion Number then in effect following such adjustment.
         (g) No fractional shares or scrip representing  fractional shares shall
be issued upon the conversion of any shares of Preferred Stock. If more than one
share of Preferred  Stock shall be surrendered for conversion at one time by the
same holder,  the number of full shares of Common Stock issuable upon conversion
thereof  shall be  computed  on the basis of the  aggregate  number of shares of
Preferred  Stock so  surrendered.  If the  conversion  of any share or shares of
Preferred  Stock  results  in a  fraction,  an  amount  equal  to such  fraction
multiplied  by the Current  Market Price of the Common Stock on the Business Day
preceding  the day of  conversion  shall be paid to such  holder  in cash by the
Corporation.

         (h) In case of any capital  reorganization or reclassification or other
change of outstanding  shares of Common Stock (other than a change in par value,
or from par value to no par  value,  or from no par value to par  value),  or in
case of any  consolidation  or merger of the  Corporation  with or into  another
Person (other than a  consolidation  or merger in which the  Corporation  is the
resulting or surviving Person and which does not result in any  reclassification
or  change  of  outstanding  Common  Stock),  or in  case of any  sale or  other
disposition to another Person of all or  substantially  all of the assets of the
Corporation (any of the foregoing,  a "Transaction"),  the Corporation,  or such
successor or purchasing Person, as the case may be, shall execute and deliver to
each holder of Preferred  Stock at least 10 Business Days prior to effecting any
of the foregoing  Transactions  a  certificate  that the holder of each share of
Preferred Stock then outstanding shall have the right thereafter to convert such
share of  Preferred  Stock  into the kind and amount of shares of stock or other
securities (of the Corporation or another issuer,  the "Other  Securities"))  or
property or cash receivable  upon such  Transaction by a holder of the number of
shares of Common Stock into which such share of Preferred  Stock could have been
converted immediately prior to such Transaction.  Such certificate shall provide
for adjustments which shall be as nearly equivalent as may be practicable to the
adjustments  provided  for in this  Section  7.  If,  in the  case  of any  such
Transaction,  the Other Securities,  cash or property receivable  thereupon by a
holder of Common Stock includes shares of stock or other  securities of a Person
other than the  successor or purchasing  Person and other than the  Corporation,
which controls or is controlled by the successor or purchasing  Person or which,
in connection with such Transaction,  issues Other Securities, other property or
cash to holders of Common Stock, then such certificate also shall be executed by
such  Person,   and  such  Person  shall,  in  such  certificate,   specifically
acknowledge  the  obligations  of  such  successor  or  purchasing   Person  and
acknowledge  its obligations to issue such Other  Securities,  other property or
cash to the  holders  of  Preferred  Stock  upon  conversion  of the  shares  of
Preferred Stock as provided  above.  The provisions of this Section 7(h) and any
equivalent  thereof in any such certificate  similarly shall apply to successive
Transactions.

<PAGE>


         (i) The  Corporation  shall at all times reserve and keep available for
issuance  upon  the  conversion  of the  Preferred  Stock,  such  number  of its
authorized  but  unissued  shares of  Common  Stock as will from time to time be
sufficient  to permit the  conversion  of all  outstanding  shares of  Preferred
Stock,  and shall take all action required to increase the authorized  number of
shares of Common Stock if at any time there shall be insufficient authorized but
unissued  shares of Common  Stock to permit  such  reservation  or to permit the
conversion of all outstanding shares of Preferred Stock.

         (j) The issuance or delivery of certificates  for Common Stock upon the
conversion  of shares of  Preferred  Stock shall be made  without  charge to the
converting  holder of shares of Preferred Stock for such certificates or for any
tax in  respect  of  the  issuance  or  delivery  of  such  certificates  or the
securities  represented  thereby,  and  such  certificates  shall be  issued  or
delivered  in the  respective  names  of, or  (subject  to  compliance  with the
applicable provisions of federal and state securities laws) in such names as may
be  directed  by,  the  holders  of the  shares of  Preferred  Stock  converted;
provided,  however,  that the  Corporation  shall not be required to pay any tax
which may be payable in respect of any  transfer  involved in the  issuance  and
delivery of any such  certificate in a name other than that of the holder of the
shares of Preferred Stock converted,  and the Corporation  shall not be required
to issue or  deliver  such  certificate  unless or until the  Person or  Persons
requesting the issuance or delivery  thereof shall have paid to the  Corporation
the amount of such tax or shall have established to the reasonable  satisfaction
of the Corporation that such tax has been paid.

         (k) If an offer is made to purchase Common Stock and the offer must, by
reason of  applicable  securities  legislation  or the  requirements  of a stock
exchange on which the Common  Stock is listed,  be made to all or  substantially
all  holders  of  Common  Stock  located  in a  province  of Canada in which the
requirement  applies,  the  holders  of  Preferred  Stock  shall  be  given  the
opportunity  to  participate  in the offer  through  conversion of the Preferred
Stock into Common Stock; unless

                  (i) an  identical  offer (in terms of price per  security  and
         percentage of  outstanding  securities  to be taken upon,  exclusive of
         securities  owned  immediately  prior  to the  bid by the  offeror,  or
         associates  or  affiliates  of the offeror,  and in all other  material
         respects) is made concurrently to purchase Preferred Stock, which offer
         has no condition  attached  other than the right not to take up and pay
         for securities  tendered if no securities are purchased pursuant to the
         offer for Common Stock; or

                  (ii) less than 50% of the Common Stock outstanding immediately
         prior to the offer,  other than Common Stock owned by the  offeror,  or
         associates or affiliates of the offeror,  are deposited pursuant to the
         offer.

         Section 8.        Certain Remedies.

         Any  registered  holder of  Preferred  Stock  shall be  entitled  to an
injunction  or  injunctions  to  prevent  breaches  of the  provisions  of  this
Certificate of Designation and to enforce  specifically the terms and provisions
of this  Certificate  of  Designation  in any court of the United  States or any
state thereof having jurisdiction, this being in addition to any other remedy to
which such holder may be entitled at law or in equity.

         Section 9.        Additional Shares of Preferred Stock.

         While any shares of Preferred  Stock are  outstanding,  the Corporation
shall not issue any additional shares of Common Stock or convertible securities,
rights,  warrants,  options or other  commitments  to issue Common Stock unless,
prior to such  issuance,  the  Corporation  declares  and pays a dividend on the
Preferred  Stock of a number of shares of Preferred Stock equal to the number of
shares of Common  Stock being  issued or the maximum  number of shares of Common
Stock  which may be issued  pursuant  to such  convertible  securities,  rights,
warrants, options or commitments;  provided,  however, the Corporation shall not
be required to issue additional shares of Preferred Stock in connection with the
issuance of Common Stock  pursuant to agreements  described in a Schedule to the
Purchase Agreement.

<PAGE>


         Section 10.       Definitions.

         For the purposes of this Certificate of Designation of Preferred Stock,
the following terms shall have the meanings indicated:

         "Business  Day"  shall mean any day other  than a  Saturday,  Sunday or
other day on which  commercial  banks in the City of New York are  authorized or
required by law or executive order to close.

         "Common  Stock"  shall mean and include the Common  Stock,  without par
value,  of the  Corporation  and  each  other  class  of  capital  stock  of the
Corporation  that does not have a  preference  over any other  class of  capital
stock of the  Corporation  as to dividends or upon  liquidation,  dissolution or
winding up of the Corporation  and, in each case,  shall include any other class
of capital stock of the  Corporation  into which such stock is  reclassified  or
reconstituted.

         "Current  Market  Price" per share  shall mean,  on any date  specified
herein for the determination  thereof, (a) the average daily Market Price of the
Common  Stock for those days during the period of 20 days,  ending on such date,
which  are  Trading  Days,  and (b) if the  Common  Stock is not then  listed or
admitted  to  trading  on any  national  securities  exchange  or  quoted in the
over-the-counter market, the Market Price on such date.

         "Junior Stock" shall mean any capital stock of the Corporation  ranking
junior (either as to dividends or upon  liquidation,  dissolution or winding up)
to the Preferred Stock including, without limitation, the Common Stock.

         "Liquidation  Amount" with respect to a share of Preferred  Stock shall
mean the sum of (a) all declared and unpaid  dividends on such Preferred  Stock,
and (b) the sum of $10.00  divided  by the number of shares of  Preferred  Stock
outstanding on the applicable date.

         "Market  Price"  shall  mean,  per  share of  Common  Stock on any date
specified  herein:  (a) the closing  price per share of the Common  Stock on the
Alberta Stock Exchange or other  principal  Canadian stock exchange on which the
Common  Stock is traded,  stated in U.S.  dollars at the then  current  exchange
ratio of Canadian  dollars into U.S.  dollars or (b) if there shall have been no
trading on such date or if the Common Stock is not so designated, the average of
the  reported  closing bid and asked  prices of the Common Stock on such date as
shown by any  reputable  dealer  in  Common  Stock as  selected  by the Board of
Directors of the Corporation. If none of (a) or (b) is applicable,  Market Price
shall mean a market price per share determined at the  Corporation's  expense by
an  appraiser  chosen by the  holders of a majority  of the shares of  Preferred
Stock or, if no such appraiser is so chosen more than twenty business days after
notice of the  necessity of such  calculation  shall have been  delivered by the
Corporation to the holders of Preferred  Stock,  then by an appraiser  chosen by
the Corporation.

         "Person" shall mean any  individual,  firm,  corporation,  partnership,
trust,  incorporated or unincorporated  association,  limited liability company,
joint  venture,  joint  stock  company,  government  (or an agency or  political
subdivision  thereof)  or other  entity  of any  kind,  and  shall  include  any
successor (by merger) of such entity.

         "Purchase  Agreement"  shall mean the  Securities  Purchase  Agreement,
dated December 30, 1999,  between the  Corporation  and  Bellwether  Exploration
Company.

         "Trading  Day"  shall  mean  a day on  which  the  national  securities
exchanges are open for trading.


<PAGE>


     IN WITNESS WHEREOF,  CARPATSKY PETROLEUM,  INC. has caused this Certificate
to be duly executed in its corporate name on this [ ]th day of [ ], 2000.


                                    [NEW CARPATSKY PETROLEUM, INC.]


                                    By
                                       -------------------------------------
                                    Name:
                                    Title:    President
ATTEST:



By
  ----------------------------------
Name:
Title:    Secretary

<PAGE>


                                    Exhibit B
                                       to
                       First Amendment to Merger Agreement
                             dated December 30, 1999

                           [PEASE OIL AND GAS COMPANY]


                           CERTIFICATE OF DESIGNATION
                         OF CONVERTIBLE PREFERRED STOCK,
                       SERIES A SETTING FORTH THE POWERS,
                      PREFERENCES, RIGHTS, QUALIFICATIONS,
                         LIMITATIONS AND RESTRICTIONS OF
                              SUCH PREFERRED STOCK

         Pursuant to the Nevada  Business  Corporations  Act, [PEASE OIL AND GAS
COMPANY], a Nevada corporation (the "Corporation"), DOES HEREBY CERTIFY:

         That pursuant to the authority conferred upon the Board of Directors of
the  Corporation  by the  Articles  of  Incorporation  of the  Corporation  (the
"Charter"),  the Board of Directors of the Corporation on [ ], 2000 duly adopted
the  following  resolution  creating a series of Preferred  Stock  designated as
Convertible  Preferred Stock, Series A and such resolution has not been modified
and is in full force and effect on the date hereof:

         RESOLVED  that,  pursuant  to the  authority  vested  in the  Board  of
Directors of the Corporation in accordance with the provisions of the Charter, a
series of authorized  Preferred Stock, without par value, of the Corporation are
hereby  created and that the  designation  and number of shares  thereof and the
voting  powers,  preferences  and  relative,  participating,  optional and other
special  rights  of the  shares  of such  series  of  Preferred  Stock,  and the
qualifications, limitations and restrictions thereof are as follows:

         Section 1.        Designation and Number.

         (a) The shares of such series of Preferred Stock shall be designated as
"Convertible  Preferred  Stock,  Series A"  ("Preferred  Stock").  The number of
shares initially  constituting the Preferred Stock shall be 102,410,000  shares,
which number may be  increased or decreased by the Board of Directors  without a
vote of stockholders;  provided,  however, that such number may not be decreased
below the number of then outstanding shares of such series of Preferred Stock.

         (b) The Preferred  Stock shall,  with respect to rights on liquidation,
dissolution  or winding up, rank prior to all other classes and series of Junior
Stock  of  the  Corporation  now  or  hereafter  authorized  including,  without
limitation, the Common Stock.



                                        1

<PAGE>



         (c) Capitalized  terms used herein and not otherwise defined shall have
the meanings set forth in Section 10 below.

         Section 2.        Dividends and Distributions.

         In the event that the  Corporation  shall  declare a cash  dividend  to
holders of Common  Stock,  then the Board of Directors  shall  declare,  and the
holder of each share of Preferred Stock shall be entitled to receive, a dividend
in an amount  equal to the amount of such  dividend  received by a holder of the
number of shares of Common  Stock for which  such  share of  Preferred  Stock is
convertible on the record date for such dividend.  Any such amount shall be paid
to the holders of shares of  Preferred  Stock at the same time such  dividend is
made to holders of Common Stock.

         The  holders of shares of  Preferred  Stock  shall not be  entitled  to
receive any dividends or other distributions except as provided herein.

         Section 3.        Voting Rights.

         In addition to any voting rights  provided by law and except where only
a specified class or series of shares is entitled to vote, the holders of shares
of Preferred Stock shall have the following voting rights:

         (a) Except as otherwise  required by applicable  law and so long as the
Preferred Stock is outstanding,  each share of Preferred Stock shall entitle the
holder thereof to vote, in person or by proxy or written  consent,  at a special
or annual meeting of stockholders  or in connection with any stockholder  action
taken in lieu of a meeting of  stockholders,  on all matters voted on by holders
of Common  Stock,  including  the election of  directors,  voting  together as a
single class with all other shares entitled to vote thereon. With respect to any
such vote,  each share of Preferred  Stock shall  entitle the holder  thereof to
cast one vote for each share of Preferred  Stock  standing in his or her name on
the transfer books of the  Corporation as of the record date for determining the
stockholders of the Corporation eligible to vote on any such matters.

         (b) Unless the consent or approval of a greater  number of shares shall
then be required by law, the affirmative vote of the holders of at least 66-2/3%
of the  outstanding  shares of Preferred  Stock,  voting  separately as a single
class,  in person or by proxy,  at a special or annual  meeting of  stockholders
called for the purpose, shall be necessary to (i) authorize, adopt or approve an
amendment  to the Charter  that would  increase or decrease the par value of the
shares of Preferred Stock, or alter or change the powers, preferences or special
rights of the shares of Preferred Stock, (ii) amend, alter or repeal the Charter
so as to affect the shares of  Preferred  Stock  adversely,  including,  without
limitation,  by  granting  any  voting  right to any  holder  of  notes,  bonds,
debentures or other debt  obligations of the  Corporation,  or (iii)  authorize,
increase the authorized  number of shares of, or issue  (including on conversion
or   exchange   of   any   convertible   or   exchangeable   securities   or  by
reclassification)  any additional shares of Preferred Stock except under Section
9.


                                        2

<PAGE>



         (c) For so long as the shares of Preferred Stock are  outstanding,  the
Corporation  shall not issue any capital stock  entitling the holder  thereof to
vote generally under ordinary circumstances in the election of directors,  other
than (i) Common Stock and (ii) Preferred Stock issued pursuant to Section 9.

         Section 4.        Redemption.

         The  Corporation  shall  not have any  right to  redeem  any  shares of
Preferred Stock.

         Section 5.        Reacquired Shares.

         Any shares of Preferred Stock converted, exchanged, redeemed, purchased
or  otherwise  acquired by the  Corporation  in any manner  whatsoever  shall be
retired and cancelled promptly after the acquisition thereof. All such shares of
Preferred  Stock shall upon their  cancellation  become  authorized but unissued
shares of preferred stock.

         Section 6.        Liquidation, Dissolution or Winding Up.

         (a) If the Corporation shall commence a voluntary case under the United
States bankruptcy laws or any applicable  bankruptcy,  insolvency or similar law
of any other  country,  or  consent  to the  entry of an order for  relief in an
involuntary  case  under  any  such  law or to the  appointment  of a  receiver,
liquidator,   assignee,  custodian,  trustee,  sequestrator  (or  other  similar
official) of the Corporation or of any substantial part of its property, or make
an  assignment  for the  benefit  of its  creditors,  or  admit in  writing  its
inability  to pay its debts  generally  as they  become due (any such  event,  a
"Voluntary Liquidation Event"), or if a decree or order for relief in respect of
the Corporation shall be entered by a court having  jurisdiction in the premises
in an involuntary case under the United States bankruptcy laws or any applicable
bankruptcy,  insolvency  or similar law of any other  country,  or  appointing a
receiver,  liquidator,  assignee,  custodian,  trustee,  sequestrator  (or other
similar official) of the Corporation or of any substantial part of its property,
or ordering the winding up or liquidation of its affairs,  and on account of any
such  event the  Corporation  shall  liquidate,  dissolve  or wind up, or if the
Corporation shall otherwise  liquidate,  dissolve or wind up, the holders of the
Preferred Stock shall be entitled to receive the Liquidation Amount prior to any
payment being made or any property of the Corporation  being  distributed to the
holders of the Common Stock or the holders of any Junior Stock. After payment to
the holders of the Preferred Stock of the Liquidation Amount, the holders of the
Preferred  Stock shall be entitled to receive  (rateably with the holders of the
Common  Shares) for each share of Preferred  Stock held,  the amount which would
have been received by the Holder of such  Preferred  Stock if on the record date
for such  distribution,  the holder of such  Preferred  Stock had converted such
Preferred  Stock  into the  number of shares of Common  Stock  into  which  such
Preferred Stock was convertible on the record date for such distribution.




                                        3

<PAGE>



         (b) Neither the consolidation or merger of the Corporation with or into
any other Person nor the sale or other  distribution to another Person of all or
substantially  all the assets,  property or business of the Corporation shall be
deemed to be a  liquidation,  dissolution or winding up of the  Corporation  for
purposes of this Section 6.

         Section 7.        Conversion.

         (a) Subject to the terms and conditions set forth herein, each share of
Preferred  Stock  shall  be  convertible   into  a  number  of  fully  paid  and
non-assessable shares of Common Stock as is equal, subject to Section 7(g), to a
fraction, the numerator of which shall be the Common Stock Conversion Number and
the denominator of which shall be the number of shares of Preferred Stock issued
and outstanding on the date of conversion.  The Common Stock  Conversion  Number
shall  initially be 50,000,000,  and shall be subject to adjustment as set forth
in this Section. Such conversion right may only be exercised by the holders of a
majority of the outstanding shares of Preferred Stock surrendering  certificates
("Surrendered  Certificates")  representing a majority of the outstanding shares
of Preferred Stock to the Corporation at any time during usual business hours at
its principal  place of business to be maintained by it,  accompanied by written
notice  that the holders of a majority of the  outstanding  shares of  Preferred
Stock  elect to convert  such  shares  and  specifying  the name or names  (with
address) in which a certificate or  certificates  for shares of Common Stock are
to be issued and (if so required by the Corporation) by a written  instrument or
instruments of transfer in form reasonably  satisfactory to the Corporation duly
executed by the holder or its duly authorized legal  representative and transfer
tax stamps or funds  therefor,  if required  pursuant to Section 7(j). Upon such
surrender,  all shares of Preferred Stock shall  automatically be converted into
Common  Stock  as  provided  in  this  Section.  Notwithstanding  the  foregoing
provisions  or anything  set forth herein or in the  Certificate,  any shares of
Preferred  Stock  remaining  outstanding  on  December  28, 2004 shall be and be
deemed to have been converted into Common Stock at the Conversion Number then in
effect.


         (b) As promptly as practicable after the surrender, as herein provided,
of shares of  Preferred  Stock for  conversion  pursuant  to Section  7(a),  the
Corporation  shall  deliver to all holders of Preferred  Stock a written  notice
informing  such  holders (i) that the  holders of a majority of the  outstanding
shares of Preferred Stock have delivered their  certificates  for such shares to
the Corporation in satisfactory  form for conversion into Common Shares pursuant
to the  requirements  of this Section 7, (ii) that, as result of such  delivery,
all  outstanding  Preferred  Stock has been  converted into the right to receive
Common Stock and (iii) of the Common  Stock  Conversion  Number and  instructing
such holders to surrender the certificates representing their Preferred Stock to
the  Corporation  in the  manner  specified  in  Section  7(a) above in order to
receive  certificates   representing  the  Common  Stock  deliverable  upon  the
conversion  of their  Preferred  Stock.  As  promptly as  practicable  after the
surrender of any  certificates  representing  Preferred Stock in accordance with
the requirements of this Section 7, the Corporation shall deliver to or upon the
written  order of  the holder  of such  shares so  surrendered  a certificate or


                                        4

<PAGE>



certificates  representing the number of fully paid and non-assessable shares of
Common  Stock  into  which such  shares of  Preferred  Stock may be or have been
converted in  accordance  with the  provisions of this Section 7. Subject to the
following  provisions of this  paragraph and of Section  7(d),  such  conversion
shall be deemed to have been made immediately  prior to the close of business on
the date that such  shares of  Preferred  Stock shall have been  surrendered  in
satisfactory form for conversion,  and the Person or Persons entitled to receive
the Common Stock  deliverable  upon conversion of such shares of Preferred Stock
shall be treated for all purposes as having  become the record holder or holders
of such Common Stock at such  appropriate  time,  and such  conversion  shall be
based on the Common Stock  Conversion  Number in effect at such time;  provided,
however,  that no  surrender  shall be  effective  to  constitute  the Person or
Persons entitled to receive the Common Stock deliverable upon such conversion as
the record holder or holders of such Common Stock while the share transfer books
of the  Corporation  shall be closed  (but not for any  period in excess of five
days), but such surrender shall be effective to constitute the Person or Persons
entitled to receive  such Common Stock as the record  holder or holders  thereof
for all  purposes  immediately  prior  to the  close  of  business  on the  next
succeeding day on which such share transfer books are open, and such  conversion
shall be deemed to have been  made at,  and shall be based on the  Common  Stock
Conversion Number in effect at, such time on such next succeeding day.

         (c) To the extent  permitted by law, when shares of Preferred Stock are
converted, all dividends declared and unpaid on the Preferred Stock so converted
to the  date of  conversion  shall  be  immediately  due and  payable  and  must
accompany the shares of Common Stock issued upon such conversion.

         (d) The Common Stock  Conversion  Number shall be subject to adjustment
as follows:

                  (i) In case the Corporation  shall at any time or from time to
         time  (A) pay a  dividend  or make a  distribution  on the  outstanding
         shares of Common Stock in capital  stock  (which,  for purposes of this
         Section  7(d) shall  include,  without  limitation,  any  dividends  or
         distributions  in the form of  options,  warrants  or other  rights  to
         acquire   capital  stock)  of  the   Corporation,   (B)  subdivide  the
         outstanding  shares of Common Stock into a larger number of shares, (C)
         combine the outstanding shares of Common Stock into a smaller number of
         shares,   or  (D)  issue  any  shares  of  its   capital   stock  in  a
         reclassification  of the Common Stock then,  and in each such case, the
         Common  Stock  Conversion  Number in effect  immediately  prior to such
         event shall be adjusted to equal the Common Stock Conversion  Number in
         effect  immediately prior to such action multiplied by a fraction,  the
         numerator of which is the number of shares of Common Stock  outstanding
         after  the  action  described  in  clauses  (A)  through  (D)  and  the
         denominator   of  which  is  the  number  of  shares  of  Common  Stock
         outstanding  immediately  prior  to such  action.  An  adjustment  made
         pursuant to this Section 7(d)(i) shall become  effective  retroactively
         (A) in the  case  of  any  such  dividend  or  distribution,  to a date
         immediately following  the close of business on the record date for the


                                        5

<PAGE>



         determination  of  holders of Common  Stock  entitled  to receive  such
         dividend or  distribution  or (B) in the case of any such  subdivision,
         combination  or  reclassification,  to the close of business on the day
         upon which such corporate action becomes effective.

                  (ii) In case the Corporation shall at any time or from time to
         time issue shares of Common Stock (or  securities  convertible  into or
         exchangeable for Common Stock, or any options, warrants or other rights
         to acquire shares of Common Stock) for a  consideration  per share less
         than the Current  Market Price per share of Common Stock then in effect
         at the record date or issuance  date,  as the case may be (the "Date"),
         referred to in the following  sentence  (treating the consideration per
         share of any security  convertible or exchangeable or exercisable  into
         Common  Stock as equal to (A) the sum of the  price  for such  security
         convertible,  exchangeable  or  exercisable  into Common Stock plus any
         additional  consideration  payable (without regard to any anti-dilution
         adjustments) upon the conversion, exchange or exercise of such security
         into Common  Stock  divided by (B) the number of shares of Common Stock
         initially  underlying  such  convertible,  exchangeable  or exercisable
         security),  then,  and in each such case,  the Common Stock  Conversion
         Number in effect  shall be adjusted  by  multiplying  the Common  Stock
         Conversion Number in effect on the day immediately prior to the Date by
         a fraction (x) the numerator of which shall be the sum of the number of
         shares  of Common  Stock  outstanding  on the Date  plus the  number of
         additional  shares of  Common  Stock  issued  or to be  issued  (or the
         maximum number into which such  convertible or exchangeable  securities
         initially may convert or exchange or for which such  options,  warrants
         or other rights  initially may be exercised) and (y) the denominator of
         which  shall  be the  sum of the  number  of  shares  of  Common  Stock
         outstanding on the Date plus the number of shares of Common Stock which
         the  aggregate  consideration  for the total number of such  additional
         shares of Common Stock (or securities  convertible into or exchangeable
         for Common Stock,  or any options,  warrants or other rights to acquire
         shares of Common  Stock) plus the  aggregate  amount of any  additional
         consideration  initially  payable (without regard to any  anti-dilution
         adjustments)  upon  such  conversion,  exchange  or  exercise  of  such
         security into Common Stock would  purchase at the Current  Market Price
         per share of Common Stock on the Date.  Such  adjustment  shall be made
         whenever such shares, securities, options, warrants or other rights are
         issued, and shall become effective  retroactively to a date immediately
         following  the  close  of  business  (i) in the  case  of  issuance  to
         stockholders  of the  Corporation,  as such, on the record date for the
         determination   of  stockholders   entitled  to  receive  such  shares,
         securities,  options,  warrants  or other  rights and (ii) in all other
         cases, on the date ("issuance  date") of such issuance;  provided that:
         (A) the  determination  as to whether an  adjustment  is required to be
         made pursuant to this Section  7(d)(ii) shall be made upon the issuance
         of such shares or such convertible or exchangeable securities, options,
         warrants  or  other  rights;  (B)  if  any  convertible or exchangeable


                                        6

<PAGE>



         securities, options, warrants or other rights (or any portions thereof)
         which shall have given rise to an  adjustment  pursuant to this Section
         7(d)(ii) shall have expired or terminated  without the exercise thereof
         and/or if by reason of the terms of such  convertible  or  exchangeable
         securities,  options, warrants or other rights there shall have been an
         increase or  increases  or decrease or  decreases,  with the passage of
         time or otherwise, in the price payable upon the exercise or conversion
         thereof,  then the Common Stock  Conversion  Number  hereunder shall be
         readjusted (but to no greater extent than  originally  adjusted) on the
         basis of (x) eliminating from the computation any additional  shares of
         Common  Stock   corresponding   to  such  convertible  or  exchangeable
         securities,  options, warrants or other rights as shall have expired or
         terminated, (y) treating the additional shares of Common Stock, if any,
         actually issued or issuable  pursuant to the previous  exercise of such
         convertible  or  exchangeable  securities,  options,  warrants or other
         rights as having been issued for the  consideration  actually  received
         and  receivable  therefor and (z) treating any of such  convertible  or
         exchangeable securities, options, warrants or other rights which remain
         outstanding  as being subject to exercise or conversion on the basis of
         such exercise or conversion  price as shall be in effect at the time of
         adjustment; and (C) no adjustment in the Common Stock Conversion Number
         shall be made  pursuant  to this  Section  7(d)(ii)  as a result of any
         issuance  of  securities  by the  Corporation  in  respect  of which an
         adjustment  to the Common Stock  Conversion  Number is made pursuant to
         Section 7(d)(i).

                  (iii) In the case the Corporation, at any time or from time to
         time,  shall take any action  affecting  its Common Stock similar to or
         having an effect  similar  to any of the  actions  described  in any of
         Section  7(d)(i)  and  Section  7(d)(ii),  or  Section  7(h)  (but  not
         including  any action  described in any such  Section) and the Board of
         Directors of the Corporation in good faith  determines that it would be
         equitable in the  circumstances  to adjust the Common Stock  Conversion
         Number as a result of such  action,  then,  and in each such case,  the
         Common Stock Conversion  Number shall be adjusted in such manner and at
         such time as the Board of  Directors of the  Corporation  in good faith
         determines would be equitable in the circumstances  (such determination
         to be evidenced  in a  resolution,  a certified  copy of which shall be
         mailed to the holders of the Preferred Stock).

                  (iv)  Notwithstanding  anything  herein  to the  contrary,  no
         adjustment  under  this  Section  7(d)  shall be made upon the grant of
         options to  employees  or  directors  of the  Corporation  pursuant  to
         benefit plans approved by the Board of Directors of the  Corporation or
         upon the  issuance  of shares of Common  Stock  upon  exercise  of such
         options  if the  exercise  price  thereof  was not less than the Market
         Price of the Common Stock on the date such options were granted.

         (e) If the Corporation shall take a record of the holders of its Common
Stock  for the  purpose  of  entitling  them to  receive  a  dividend  or  other
distribution,  and shall  thereafter and before the distribution to stockholders


                                        7

<PAGE>



thereof   legally   abandon  its  plan  to  pay  or  deliver  such  dividend  or
distribution,  then  thereafter  no  adjustment  in the Common Stock  Conversion
Number then in effect shall be required by reason of the taking of such record.

         (f) Upon any  increase  or  decrease  in the  Common  Stock  Conversion
Number,  then, and in each such case, the Corporation  promptly shall deliver to
each  registered  holder of Preferred  Stock at least 10 Business  Days prior to
effecting  any  of the  foregoing  transactions  a  certificate,  signed  by the
President or a Vice-President and by the Treasurer or an Assistant  Treasurer or
the  Secretary or an Assistant  Secretary of the  Corporation,  setting forth in
reasonable  detail the event  requiring the  adjustment  and the method by which
such adjustment was calculated and specifying the increased or decreased  Common
Stock Conversion Number then in effect following such adjustment.

         (g) No fractional shares or scrip representing  fractional shares shall
be issued upon the conversion of any shares of Preferred Stock. If more than one
share of Preferred  Stock shall be surrendered for conversion at one time by the
same holder,  the number of full shares of Common Stock issuable upon conversion
thereof  shall be  computed  on the basis of the  aggregate  number of shares of
Preferred  Stock so  surrendered.  If the  conversion  of any share or shares of
Preferred  Stock  results  in a  fraction,  an  amount  equal  to such  fraction
multiplied  by the Current  Market Price of the Common Stock on the Business Day
preceding  the day of  conversion  shall be paid to such  holder  in cash by the
Corporation.

         (h) In case of any capital  reorganization or reclassification or other
change of outstanding  shares of Common Stock (other than a change in par value,
or from par value to no par  value,  or from no par value to par  value),  or in
case of any  consolidation  or merger of the  Corporation  with or into  another
Person (other than a  consolidation  or merger in which the  Corporation  is the
resulting or surviving Person and which does not result in any  reclassification
or  change  of  outstanding  Common  Stock),  or in  case of any  sale or  other
disposition to another Person of all or  substantially  all of the assets of the
Corporation (any of the foregoing,  a "Transaction"),  the Corporation,  or such
successor or purchasing Person, as the case may be, shall execute and deliver to
each holder of Preferred  Stock at least 10 Business Days prior to effecting any
of the foregoing  Transactions  a  certificate  that the holder of each share of
Preferred Stock then outstanding shall have the right thereafter to convert such
share of  Preferred  Stock  into the kind and amount of shares of stock or other
securities (of the Corporation or another issuer,  the "Other  Securities"))  or
property or cash receivable  upon such  Transaction by a holder of the number of
shares of Common Stock into which such share of Preferred  Stock could have been
converted immediately prior to such Transaction.  Such certificate shall provide
for adjustments which shall be as nearly equivalent as may be practicable to the
adjustments  provided  for in this  Section  7.  If,  in the  case  of any  such
Transaction,  the Other Securities,  cash or property receivable  thereupon by a
holder of Common Stock includes shares of stock or other  securities of a Person
other than the  successor or purchasing  Person and other than the  Corporation,
which controls or is controlled by the successor or purchasing  Person or which,
in connection with such Transaction,  issues Other Securities, other property or
cash to holders of Common Stock, then such certificate also shall be executed by


                                        8

<PAGE>



such  Person,   and  such  Person  shall,  in  such  certificate,   specifically
acknowledge  the  obligations  of  such  successor  or  purchasing   Person  and
acknowledge  its obligations to issue such Other  Securities,  other property or
cash to the  holders  of  Preferred  Stock  upon  conversion  of the  shares  of
Preferred Stock as provided  above.  The provisions of this Section 7(h) and any
equivalent  thereof in any such certificate  similarly shall apply to successive
Transactions.

         (i) The  Corporation  shall at all times reserve and keep available for
issuance  upon  the  conversion  of the  Preferred  Stock,  such  number  of its
authorized  but  unissued  shares of  Common  Stock as will from time to time be
sufficient  to permit the  conversion  of all  outstanding  shares of  Preferred
Stock,  and shall take all action required to increase the authorized  number of
shares of Common Stock if at any time there shall be insufficient authorized but
unissued  shares of Common  Stock to permit  such  reservation  or to permit the
conversion of all outstanding shares of Preferred Stock.

         (j) The issuance or delivery of certificates  for Common Stock upon the
conversion  of shares of  Preferred  Stock shall be made  without  charge to the
converting  holder of shares of Preferred Stock for such certificates or for any
tax in  respect  of  the  issuance  or  delivery  of  such  certificates  or the
securities  represented  thereby,  and  such  certificates  shall be  issued  or
delivered  in the  respective  names  of, or  (subject  to  compliance  with the
applicable provisions of federal and state securities laws) in such names as may
be  directed  by,  the  holders  of the  shares of  Preferred  Stock  converted;
provided,  however,  that the  Corporation  shall not be required to pay any tax
which may be payable in respect of any  transfer  involved in the  issuance  and
delivery of any such  certificate in a name other than that of the holder of the
shares of Preferred Stock converted,  and the Corporation  shall not be required
to issue or  deliver  such  certificate  unless or until the  Person or  Persons
requesting the issuance or delivery  thereof shall have paid to the  Corporation
the amount of such tax or shall have established to the reasonable  satisfaction
of the Corporation that such tax has been paid.

         (k) If an offer is made to purchase Common Stock and the offer must, by
reason of  applicable  securities  legislation  or the  requirements  of a stock
exchange on which the Common  Stock is listed,  be made to all or  substantially
all  holders  of  Common  Stock  located  in a  province  of Canada in which the
requirement  applies,  the  holders  of  Preferred  Stock  shall  be  given  the
opportunity  to  participate  in the offer  through  conversion of the Preferred
Stock into Common Stock; unless

                  (i) an  identical  offer (in terms of price per  security  and
         percentage of  outstanding  securities  to be taken upon,  exclusive of
         securities  owned  immediately  prior  to the  bid by the  offeror,  or
         associates  or  affiliates  of the offeror,  and in all other  material
         respects) is made concurrently to purchase Preferred Stock, which offer
         has no condition  attached  other than the right not to take up and pay
         for securities  tendered if no securities are purchased pursuant to the
         offer for Common Stock; or



                                        9

<PAGE>



                  (ii) less than 50% of the Common Stock outstanding immediately
         prior to the offer,  other than Common Stock owned by the  offeror,  or
         associates or affiliates of the offeror,  are deposited pursuant to the
         offer.

         Section 8.        Certain Remedies.

         Any  registered  holder of  Preferred  Stock  shall be  entitled  to an
injunction  or  injunctions  to  prevent  breaches  of the  provisions  of  this
Certificate of Designation and to enforce  specifically the terms and provisions
of this  Certificate  of  Designation  in any court of the United  States or any
state thereof having jurisdiction, this being in addition to any other remedy to
which such holder may be entitled at law or in equity.

         Section 9.        Additional Shares of Preferred Stock.

         While any shares of Preferred  Stock are  outstanding,  the Corporation
shall not issue any additional shares of Common Stock or convertible securities,
rights,  warrants,  options or other  commitments  to issue Common Stock unless,
prior to such  issuance,  the  Corporation  declares  and pays a dividend on the
Preferred  Stock of a number of shares of Preferred Stock equal to the number of
shares of Common  Stock being  issued or the maximum  number of shares of Common
Stock  which may be issued  pursuant  to such  convertible  securities,  rights,
warrants, options or commitments;  provided,  however, the Corporation shall not
be required to issue additional shares of Preferred Stock in connection with the
issuance of Common Stock  pursuant to agreements  described in a Schedule to the
Purchase Agreement.

         Section 10.       Definitions.

         For the purposes of this Certificate of Designation of Preferred Stock,
the following terms shall have the meanings indicated:

         "Business  Day"  shall mean any day other  than a  Saturday,  Sunday or
other day on which  commercial  banks in the City of New York are  authorized or
required by law or executive order to close.

         "Common  Stock"  shall mean and include the Common  Stock,  without par
value,  of the  Corporation  and  each  other  class  of  capital  stock  of the
Corporation  that does not have a  preference  over any other  class of  capital
stock of the  Corporation  as to dividends or upon  liquidation,  dissolution or
winding up of the Corporation  and, in each case,  shall include any other class
of capital stock of the  Corporation  into which such stock is  reclassified  or
reconstituted.

         "Current  Market  Price" per share  shall mean,  on any date  specified
herein for the determination  thereof, (a) the average daily Market Price of the
Common  Stock for those days during the period of 20 days,  ending on such date,
which  are  Trading  Days,  and (b) if the  Common  Stock is not then  listed or


                                       10

<PAGE>



admitted  to  trading  on any  national  securities  exchange  or  quoted in the
over-the-counter market, the Market Price on such date.

         "Junior Stock" shall mean any capital stock of the Corporation  ranking
junior (either as to dividends or upon  liquidation,  dissolution or winding up)
to the Preferred Stock including, without limitation, the Common Stock.

         "Liquidation  Amount" with respect to a share of Preferred  Stock shall
mean the sum of (a) all declared and unpaid  dividends on such Preferred  Stock,
and (b) the sum of $10.00  divided  by the number of shares of  Preferred  Stock
outstanding on the applicable date.

         "Market  Price"  shall  mean,  per  share of  Common  Stock on any date
specified  herein:  (a) the closing  price per share of the Common  Stock on the
Alberta Stock Exchange or other  principal  Canadian stock exchange on which the
Common  Stock is traded,  stated in U.S.  dollars at the then  current  exchange
ratio of Canadian  dollars into U.S.  dollars or (b) if there shall have been no
trading on such date or if the Common Stock is not so designated, the average of
the  reported  closing bid and asked  prices of the Common Stock on such date as
shown by any  reputable  dealer  in  Common  Stock as  selected  by the Board of
Directors of the Corporation. If none of (a) or (b) is applicable,  Market Price
shall mean a market price per share determined at the  Corporation's  expense by
an  appraiser  chosen by the  holders of a majority  of the shares of  Preferred
Stock or, if no such appraiser is so chosen more than twenty business days after
notice of the  necessity of such  calculation  shall have been  delivered by the
Corporation to the holders of Preferred  Stock,  then by an appraiser  chosen by
the Corporation.

         "Person" shall mean any  individual,  firm,  corporation,  partnership,
trust,  incorporated or unincorporated  association,  limited liability company,
joint  venture,  joint  stock  company,  government  (or an agency or  political
subdivision  thereof)  or other  entity  of any  kind,  and  shall  include  any
successor (by merger) of such entity.

         "Purchase  Agreement"  shall mean the  Securities  Purchase  Agreement,
dated December 30, 1999,  between the  Corporation  and  Bellwether  Exploration
Company.

         "Trading  Day"  shall  mean  a day on  which  the  national  securities
exchanges are open for trading.




                                       11

<PAGE>


         IN  WITNESS  WHEREOF,  PEASE  OIL  AND  GAS  COMPANY  has  caused  this
Certificate  to be duly executed in its corporate name on this [ ]th day of [ ],
2000.



                                      [PEASE OIL AND GAS COMPANY]


                                      By
                                        ---------------------------------------
                                      Name:
                                      Title:    President
ATTEST:



By
  -------------------------------------
Name:
Title:    Secretary







                                       12

<PAGE>
                                Amended Exhibit A
                                       to
                          Agreement and Plan of Merger
                              dated August 31, 1999


                               [PEASE LETTERHEAD]


                                 August __, 1999






Each Holder of Series B Convertible Preferred Stock

                  Re:      Exchange Agreement and Irrevocable Proxy

Gentlemen:

         This  letter  agreement  ("Agreement")  is  intended  to set  forth the
understandings,  representations  and  agreements by and among Pease Oil and Gas
Company,  a  Nevada  corporation  ("Company"),   Carpatsky  Petroleum,  Inc.,  a
corporation  organized  under  the  laws  of the  Province  of  Alberta,  Canada
("Carpatsky"), and the undersigned holder (the "Holder") of the Company's Series
B 5% PIK Cumulative  Convertible  Preferred  Stock ("Series B Preferred") and is
made with reference to the following agreed facts.

         A.  Holder is the record and  beneficial  owner of the number of shares
(the  "Shares")  of the  Company's  Series B  Preferred  set forth on  Exhibit A
attached  hereto.  There are  105,828  shares of Series B  Preferred  issued and
outstanding.

         B. The Company and Carpatsky  have entered into a Agreement and Plan of
Merger dated as of August __, 1999, of which this Letter  Agreement is Exhibit A
(the "Merger Agreement").

         C.  The  Merger  Agreement  provides  that  all  outstanding  Series  B
Preferred  shall be exchanged for a total of 8,865,664  shares of Company common
stock at the time of closing of the Merger Agreement.

         D. Under  agreements  dated  effective  May 24, 1999,  the  undersigned
Holder and each other holder of outstanding Series B Preferred agreed not to buy
or sell or to convert  Company  securities,  including  the Series B  Preferred,
until the earlier of: (i) closing of the Merger  Agreement,  (ii) termination or
abandonment of the Merger  Agreement by the parties,  or (iii) November 15, 1999
(the "Lock-Up Agreement").




<PAGE>



         E. The Company,  Carpatsky  and the  undersigned  holder  intend to set
forth terms and conditions of the agreement of the Holder to exchange all shares
of Series B  Preferred  held by Holder at the time of the  closing of the Merger
Agreement for shares of Company common stock, as set forth on Exhibit A.

         FOR  CONSIDERATION,  the  receipt  and  sufficiency  of which is hereby
acknowledged, the parties agree as follows:

         1. Merger Agreement.  The Company and Carpatsky shall diligently pursue
the closing of the Merger Agreement and completion of the transactions described
therein (the "Closing").

         2.  Representations  and Warranties to Holder. The  Representations and
Warranties of Pease as set forth in Article III of the Merger Agreement, and the
Representations  and Warranties of Carpatsky,  as set forth in Article IV of the
Merger  Agreement,  shall be extended to Holder and Holder  shall be entitled to
rely upon such  representations  and  warranties to the same extent as if Holder
was a party to the Merger  Agreement.  All such  representations  and warranties
shall not survive the Closing except as provided in the Merger Agreement.


         3.  Exchange  of Series B  Preferred.  At or before the  Closing of the
Merger  Agreement,  the  Holder and each other  holder of  outstanding  Series B
Preferred  shall  exchange all Series B Preferred  then held,  together with all
other dividend rights,  conversion  rights,  voting rights or other rights which
may be  applicable  to the  Series B  Preferred,  for that  number  of shares of
Company  common  stock set forth on Exhibit A attached  hereto and  incorporated
herein by reference.  At or before the Closing of the Merger  Agreement,  Holder
shall deliver to the Company,  for  exchange,  each  certificate  held by Holder
representing Series B Preferred.  At the time of exchange, and no later than the
Closing  of the  Merger  Agreement,  the  Company  shall  cause to be issued one
certificate  representing  the  appropriate  number of shares of Company  common
stock as set forth on Exhibit A in exchange for Holder's  Series B Preferred and
the Series B Preferred shall be canceled.

         4.  Post-Merger  Limitations.  Holder agrees not to effect any sales of
the Company  common stock to be issued in exchange for the Series B Preferred in
a  manner  which  does  not  comply  with  applicable  provisions  of  Rule  145
promulgated  under the Securities Act of 1933. An appropriate  legend reflecting
this  restriction may be placed on certificates  representing the Company common
stock to be issued in exchange for the Series B Preferred.

         5. Termination of Certain Rights.  Upon the completion of the Exchange,
the rights and  privileges  of the Holder as  described in the  Preferred  Stock
Purchase  Agreement  dated  effective  December 31, 1997 and the  Certificate of
Designation  of  Series B 5% PIK  Cumulative  Convertible  Preferred  Stock,  as
amended,  as filed with the  Secretary  of State of Nevada,  which  designated a
total of 145,300  shares of the  Company's  Series B Preferred and set forth the
rights and privileges applicable thereto (the "Series B Preferred  Designation")
shall be  terminated.  Following  the  Exchange,  holders'  rights as a security
holder of the Company  shall be as the holder of common stock of the Company and
Company's  Articles  of  Incorporation  shall be  amended to delete the Series B
Preferred Designation.



                                        2

<PAGE>



         6. Irrevocable  Proxy.  The undersigned  Holder who holds the number of
shares of Series B Preferred set forth on Exhibit A, hereby  makes,  constitutes
and appoints the President of Pease Oil and Gas Company, or his designee, as the
true and lawful  attorney and proxy of the undersigned  Holder,  for, and in its
name,  place and stead,  to attend any and all meetings of the  shareholders  of
Pease  Oil and Gas  Company  and to vote any and all  shares  of Series B 5% PIK
Cumulative  Convertible Preferred Stock of Pease Oil and Gas Company standing in
the  name of the  undersigned  Holder  at any  meeting  of  stockholders  or any
adjournments thereof for the following purposes only:

                  (1) To vote to approve the  Agreement and Plan of Merger dated
              effective August __, 1999 between Pease Oil and
               Gas Company and Carpatsky Petroleum, Inc. ("Merger
                                  Agreement");

                  (2)      To  approve  the  Amendment  and  Restatement  of the
                           Articles   of   Incorporation   of  the   Company  as
                           contemplated   by   the   Agreement   and   Plan   of
                           Reorganization; and

                  (3)      To  approve,  ratify  and adopt  any and all  actions
                           heretofore or hereafter  taken by the Company and its
                           management to implement the transactions contemplated
                           by the Merger Agreement and this Agreement.

The  undersigned  Holder  confirms that this proxy is given in connection with a
reorganization  of Pease Oil and Gas Company and that this proxy is coupled with
an  interest,  is binding on the Holder and its  successors  and  assigns and is
irrevocable  while the Lock Up Agreement is in effect, as described in Section 8
below,  provided,  however,  that this  proxy  shall be deemed  canceled  if the
parties  terminate the Merger Agreement before Closing.  The undersigned  Holder
hereby  represents and warrants that the execution,  delivery and performance of
this Agreement has been duly authorized and is a legally  binding  obligation of
the  Holder  enforceable  in  accordance  with  its  terms.  The  Holder  hereby
represents and acknowledges  that it is familiar with the business and financial
condition of the Company and Carpatsky and has had access to such information as
it has  requested  to enable it to make an  informed  decision  to  acquire  the
Company common stock in exchange for its shares of Series B Preferred Stock. The
Holder hereby  represents and warrants that it is an  "accredited  investor," as
defined in Rule 501 under the  Securities  Act of 1933,  as amended,  and hereby
ratifies  and  confirms  all that the said proxy  lawfully may do or cause to be
done by virtue of this authorization.

         7. Other Series B Preferred Holders.  This Agreement shall be effective
and  binding  upon the  Holder  provided  that  holders  of at least  95% of the
outstanding  Series B  Preferred,  as  identified  on Exhibit A, enter into this
Agreement with the Company and Carpatsky.



                                        3

<PAGE>



         8. Lock-Up  Agreement.  The Lock-Up  Agreement  between the Company and
Holder  shall  remain in full  force and  effect  and  shall be  enforceable  in
accordance  with its terms,  provided,  that the date through which Holder shall
not buy or sell or convert Series B Preferred  shall be extended to the later of
(i) Closing of the Merger  Agreement,  (ii)  termination  or  abandonment of the
Merger Agreement, or (iii) November 15, 1999.

         IN WITNESS  WHEREOF,  the parties  hereto have executed this  Agreement
effective as of August __, 1999.

                                   PEASE OIL AND GAS COMPANY,
                                   a Nevada corporation


                                    By _________________________________
                                    Patrick J. Duncan, President

                                    CARPATSKY PETROLEUM, INC.
                                    an Alberta, Canada corporation

                                    By _________________________________
                                    Fred Hofheinz, Director and authorized
                                    signatory

                                     HOLDER:
                                     ------------------------------------
                                     Name

                                     ------------------------------------
                                     Signature
                                     ------------------------------------
                                     Name and Title of Person Signing

                                     ------------------------------------
                                     Number of Shares of Series B Preferred Held


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<PAGE>


                                    EXHIBIT A


                                       Shares of
                                 Company Common Stock
                                   to be Issued and
                                      Shares of                 Exchange for
Name of Holder                  Series B Preferred Held      Series B Preferred
--------------                  -----------------------      ------------------
Arbco Associates, L.P.                  16,000                  1,340,388
Kayne Anderson Non-Traditional
Investments, L.P.                       18,000                  1,507,936
Offense Group Associates, L.P.          19,503                  1,633,850
Opportunity Associates, L.P.             6,000                    502,646
Marine Crew & Co.                       14,000                  1,172,840
Sandpiper & Co.                         26,000                  2,178,131
Howard Amster IRA                        1,000                     83,774
The Madav IX Foundation                  2,000                    167,549
Ramat securities, Ltd.                     325                     27,227
Tamar Securities, Inc.                   3,000                    251,323
                                     ---------                 ----------
Total:                                 105,828                  8,865,664
                                      ========                 ==========



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