Document:

CANWEST PETROLEUM CORPORATION
                           Suite 206 - 475 Howe Street
                              Vancouver, BC V6C 2B3

April 20, 2005

Apex Engineering Inc.                          West Peak Ventures of Canada Ltd.
234 Westridge Road                             Suite 420 - 475 Howe Street
Edmonton, AB  T5T 1C1                          Vancouver, BC  V6C 2B3

Attention: Dr. Baki Ozum                       Attention: Tim Brock

Dear Sirs:

Re:   Sulfoxy Joint Venture
--------------------------------------------------------------------------------

Further to our recent  discussions,  this letter of intent is a framework within
which the  parties  will  mutually  undertake  the  necessary  research  and due
diligence required for the purpose of successfully demonstrating the improvement
of bitumen recovery from the surface mineable oil sands ore and in-situ recovery
of bitumen and heavy oils by oxidation  and  sulfonation  of  asphaltenes  in an
atmosphere of confidentiality and mutual respect (the "Joint Venture").

This letter is a formal  binding  agreement  and provides a  foundation  for the
drafting of a joint venture  agreement to be executed  subsequently (as provided
for herein).

1.    Joint Venture Interests

Subject to the contributions to be made by CanWest Petroleum  Corporation (CWPC)
as to  $205,000  and as more fully  described  below as  outlined  below,  it is
acknowledged  that the parties will own certain joint  venture  interests in the
project to be  undertaken  in respect of which funding is being sought that will
be held as follows:

CanWest Petroleum Corporation ("CWPC")                     60%  working interest
Apex Engineering Inc. ("Apex")                             25%  carried interest
West Peak Ventures of Canada Ltd. ("West Peak")            15%  carried interest

(CWPC, Apex and West Peak collectively, referred to as the "Joint Venturers" and
individually as a "Joint Venturer").
<PAGE>

2.    Reduction of Joint Venture Interests

It is acknowledged and agreed that the Joint Venture  interests of Apex and West
Peak may be purchased (and CWPC's  interest will  correspondingly  be increased)
upon  payment  of the  amounts  set forth  below,  excluding  payments  made for
supplying  services  that in respect of which  Apex is  entitled  to be paid for
providing its services as outlined below:

<TABLE>
<CAPTION>
-----------------------------------------------------------------------------------------
                        Amount of Reduced                        Adjusted Joint Venture
     Joint Venturer         Interest              Payment               Interest
-----------------------------------------------------------------------------------------
<S>                            <C>              <C>                        <C>
          Apex                 10%              $1,000,000                 15%
-----------------------------------------------------------------------------------------

       West Peak                5%              $  500,000                 10%
-----------------------------------------------------------------------------------------
</TABLE>

Upon Apex and/or West Peak receiving payment of this amount,  excluding payments
made for services  performed as outlined below, the Joint  Venturer's  Interests
shall be assigned to CWPC.

3.    Material Terms of the Joint Venture and the Agreement During Phase One:

(a)   Apex will be the operator of the Joint  Venture under the direction of Dr.
      Baki Ozum in  exchange  for which it shall be entitled to be paid its fees
      from the money advanced by the parties as outlined below;

(b)   Schedule "A" attached  hereto sets out the fees that the parties  shall be
      entitled  to be paid  from the Joint  Venture  monies  including,  without
      limitation,  the fees of Apex as  operator  (these fees shall not be taken
      into account when determining whether a payment as outlined in paragraph 2
      has been made);

(c)   Phase One of the Joint Venture will include the necessary research and due
      diligence  required  for the  purpose of  successfully  demonstrating  the
      improvement of bitumen recovery from the surface mineable oil sands ore by
      oxidation  and  sulfoxidation  of bitumen  asphaltenes,  as described in a
      research  proposal  prepared for the  submission to the AERI  (prepared by
      Apex  Engineering  Inc.,  December 13,  2004).  Phase One is expected take
      approximately  6 months to complete;  The proposed budget for Phase One is
      $92,570, which is approved by CWPC;

(d)   Phase Two of the Joint Venture will include the necessary research and due
      diligence  required  for the  purpose of  successfully  demonstrating  the
      improvement  of  bitumen  recovery  from  the  in-situ  oil  sands  ore by
      oxidation  and  sulfoxidation  of bitumen  asphaltenes,  as described in a
      research  proposal  prepared for the  submission to the AERI  (prepared by
      Apex  Engineering  Inc.,  December 13,  2004).  Phase Two is expected take
      approximately  6 months to complete;  The proposed budget for Phase Two is
      $112,650, which is approved by CWPC;
<PAGE>

(e)   Except as otherwise  provided  herein,  any decision of the Joint  Venture
      shall require the approval of the holders of a minimum of 75% of the Joint
      Venture interests;

(f)   CWPC agrees to contribute not less than $92,570 to the Joint  Venture,  on
      or before September 1, 2005, and another $112,629 to the Joint Venture, on
      or before  February  28, 2006,  parties  agree to cooperate to secure such
      other sources of funds that may be available for technological development
      from AERI,  and any other  entities  providing  funding for such  research
      projects.  All these  monies shall be used to pay Apex for its services as
      outlined in the budget approved by Apex and CWPC. The funds to be provided
      by CWPC are to be forwarded to Apex on a cash call basis. Any requirements
      for shared ownership of technological  development shall be taken from all
      members of the Joint Venture according to their respective  proportions of
      interests in the Joint Venture.  Any  intellectual  property  developed by
      Apex in furtherance of the Joint Venture objectives shall be owned by Apex
      and, provided Apex receives payment for its services at the rates outlined
      in Schedule A, and the Joint  Venture  pays for the cost  associated  with
      protecting the same, whether through patent or other intellectual property
      protection  available,  Apex  shall  grant  the  Joint  Venture  parties a
      perpetual,  royalty free license  entitling the Joint  Venture  parties to
      exploit the same for all commercial  purposes in accordance with the terms
      of the Joint Venture Agreement.  The terms of such Joint Venture Agreement
      shall  include a provision  that  prohibits  any one of the Joint  Venture
      parties from making use of any of the intellectual  property  developed or
      disclosing  confidential  information  relating  to the same to any  third
      parties unless it is approved by Apex and the holders of not less than 75%
      of the Joint Venture interests;

(g)   Prior to funding  Phase Two, the parties will  negotiate in good faith the
      terms and conditions of the Agreement  and, once  executed,  the Agreement
      shall serve as the document governing the operation of the Joint Venture;

(a)   In addition to the terms and conditions provided for herein, the Agreement
      will  contain  terms  relating  to funding  requirements,  rights of first
      offer, rights of turn over,  dilution for non performance,  accounting and
      tax matters, assignment to related parties, defaults,  arbitration,  joint
      venture committee; and

(b)   The Joint  Venture  and the  Agreement  will be subject  to,  among  other
      things, the receipt of any required director,  regulatory, and shareholder
      approvals of the parties.

5.    Material Covenants

All press releases or other similar public  written  communications  of any sort
relating to the Joint  Venture,  this letter of intent,  the  Agreement  and the
method of release for  publication  thereof,  will be subject to the approval of
all parties hereto, acting reasonably. The parties will cooperate in relation to
each other's public  communications with respect to their respective business or
the Joint  Venture with a view to achieving  consistency  in the content of such
communication.
<PAGE>

This letter of intent shall be governed by the laws of the Province of Alberta.

If you are in agreement  with  foregoing,  kindly  indicate  your  acceptance by
signing  this letter of intent  where  indicated  below and return a copy to the
undersigned.   This  letter  of  intent  may  be  signed  by  facsimile  and  in
counterpart,  which  together  shall be deemed to constitute one valid letter of
agreement.

Sincerely yours,

CANWEST PETROLEUM CORPORATION

Per:
    ---------------------------------------

AGREED TO AND ACCEPTED as of this              AGREED TO AND ACCEPTED as of this
____ day of ______________, 2005.              ____ day of ______________, 2005.

APEX ENGINEERING INC.                          WEST PEAK VENTURES OF CANADA LTD.

Per:                                           Per:
    -----------------------------                  -----------------------------
<PAGE>

                                  SCHEDULE "A"
                                  FEE SCHEDULE

Apex Engineering  Inc. will send invoices to CWPC every three months.  CWPC will
be charged  $92,570 for the Phase One, and CWPC will be charged $56,325 and AERI
will be charged  $112,624 for the Phase Two.  Payments to Apex for the Phase One
of the project will be made before  September 1, 2005 and payments for Phase Two
of the project will be made before February 28, 2006.EXHIBIT 10.14

      THIS NOTE AND THE COMMON SHARES ISSUABLE UPON CONVERSION OF THIS NOTE HAVE
      NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED. THIS
      NOTE AND THE COMMON SHARES ISSUABLE UPON CONVERSION OF THIS NOTE MAY NOT
      BE SOLD, OFFERED FOR SALE, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF AN
      EFFECTIVE REGISTRATION STATEMENT AS TO THIS NOTE UNDER SAID ACT OR AN
      OPINION OF COUNSEL REASONABLY SATISFACTORY TO CANWEST PETROLEUM
      CORPORATION THAT SUCH REGISTRATION IS NOT REQUIRED.

                                CONVERTIBLE NOTE

      FOR VALUE RECEIVED, CANWEST PETROLEUM CORPORATION, a Colorado corporation
(hereinafter called "Borrower"), hereby promises to pay to ALPHA CAPITAL
AKTIENGESELLSCHAFT, Pradafant 7, 9490 Furstentums, Vaduz, Lichtenstein, Fax:
011-42-32323196, (the "Holder") or its registered assigns or successors in
interest or order, without demand, the sum of ________________________________
Dollars ($__________) ("Principal Amount"), with simple and unpaid interest
thereon, on June ___, 2006 (the "Maturity Date"), if not sooner paid.

      This Note has been entered into pursuant to the terms of a subscription
agreement between the Borrower and the Holder, dated of even date herewith (the
"Subscription Agreement"), and shall be governed by the terms of such
Subscription Agreement. Unless otherwise separately defined herein, all
capitalized terms used in this Note shall have the same meaning as is set forth
in the Subscription Agreement. The following terms shall apply to this Note:

                                    ARTICLE I

                             INTEREST; AMORTIZATION

      1.1. Interest Rate. Subject to Section 5.7 hereof, interest payable on
this Note shall accrue at a rate per annum (the "Interest Rate") of seven
percent (7%). Interest on the Principal Amount shall accrue from the date of
this Note and shall be payable, in arrears, one hundred and eighty (180) days
after the date of this Note and on the Maturity Date, whether by acceleration or
otherwise.

      1.2. Minimum Monthly Principal Payments. Amortizing payments of the
outstanding Principal Amount shall commence on the forty-fifth day after the
date of this Note and on the same day of each month thereafter (each a
"Repayment Date") until the Principal Amount has been repaid in full, whether by
the payment of cash or by the conversion of such principal into Common Stock
pursuant to the terms hereof. Subject to Section 2.1 and Article 3 below, on
each Repayment Date, the Borrower shall make payments to the Holder in the
amount of one-twelfth (1/12th) of the initial Principal Amount together with any
other amounts (not including interest) which are then owing under this Note that
have not been paid (collectively, the "Monthly Amount"). Monthly Amounts due for
the initial three Repayment Dates shall be deferred until the fourth Repayment
Date. Amounts of conversions of Principal Amount made by the Holder or Borrower
pursuant to Section 2.1 or Article III, and amounts converted pursuant to
Section 2.3 of this Note shall be applied first against outstanding fees and
damages, accrued interest on the Principal Amount, and then to the principal
portion of Monthly Amounts, commencing with the Monthly Amount first payable and
then Monthly Amounts thereafter in chronological order. Any Principal Amount,
interest and any other sum arising under the Subscription Agreement that remains
outstanding on the Maturity Date shall be due and payable on the Maturity Date.

                                       1
<PAGE>

      1.3. Default Interest Rate. Following the occurrence and during the
continuance of an Event of Default, which, if susceptible to cure is not cured
within twenty (20) days, otherwise then from the first date of such occurrence,
the annual interest rate on this Note shall (subject to Section 5.7)
automatically be increased to fifteen percent (15%), and all outstanding
obligations under this Note, including unpaid interest, shall continue to accrue
interest from the date of such Event of Default at such interest rate applicable
to such obligations until such Event of Default is cured or waived.

                                   ARTICLE II

                              CONVERSION REPAYMENT

      2.1. Payment of Monthly Amount in Cash or Common Stock. Subject to Section
3.2 hereof, the Borrower, at the Borrower's election, shall pay the Monthly
Amount in cash, or with legended Common Stock registered for unrestricted
resale. The Borrower must send notice to the Holder by confirmed telecopier not
later than 3:00 PM, New York City time not later than fourteen calendar days
preceding a Repayment Date notifying Holder of Borrower's election to pay the
Monthly Redemption Amount in cash in an amount equal to 130% of the principal
portion of the Monthly Redemption Amount and 100% of the other components of the
Monthly Redemption Amount. Elections by the Borrower must be made to all Holders
of Notes similar to this Note in proportion to the relative Note principal held
by such Note Holders. Such cash payment must be delivered to the Holder not
later than three (3) business days after the applicable Repayment Date. If the
Company does not elect to pay a Monthly Redemption Amount in cash, then at
anytime thereafter Holder may convert such Monthly Redemption Amount and any
interest accrued on this Note into Common Stock at the lesser of the Fixed
Conversion Price or seventy percent (70%) of the average of the lowest five
closing bid prices for the Common stock for the ten trading days preceding a
Conversion Date as reported by Bloomberg L.P. for the Principal Market. If such
notice is not timely sent or if the cash Monthly Redemption Amount is not timely
delivered, then Holder shall thereafter have the right, instead of the Company,
to elect whether to be paid in cash or Common Stock at the lesser of the Fixed
Conversion Price, or seventy percent (70%) of the average of the lowest five
closing bid prices for the Common stock for the ten trading days preceding a
Conversion Date as reported by Bloomberg L.P. for the Principal Market
("Variable Price"). Such Holder's election shall not be construed to be a waiver
of any default by Borrower relating to non-timely compliance by Borrower with
any of its obligations under this Note. Whichever of the NASD, OTC Bulletin
Board, NASDAQ SmallCap Market, NASDAQ National Market System, American Stock
Exchange, or New York Stock Exchange or such other principal market or exchange
where the Common Stock is listed or traded is the principal trading exchange or
market for the Common Stock is the Principal Market.

      2.2. No Effective Registration. Notwithstanding anything to the contrary
herein, no amount payable hereunder may be paid in shares of Common Stock by the
Borrower without the Holder's consent unless (a) either (i) an effective current
Registration Statement covering the shares of Common Stock to be issued in
satisfaction of such obligations exists, or (ii) an exemption from registration
of the Common Stock is available pursuant to Rule 144(k) of the Securities Act,
and (b) no Event of Default hereunder, or an event which could ripen into an
Event of Default, exists and is continuing, unless such event or Event of
Default is cured within any applicable cure period or is otherwise waived in
writing by the Holder in whole or in part at the Holder's option.

      2.3. Optional Redemption of Principal Amount. Provided an Event of Default
has not occurred, whether or not such Event of Default has been cured, then
commencing on the first Repayment Date the Borrower will have the option of
prepaying the outstanding Principal Amount ("Optional Redemption"), in whole or
in part, by paying to the Holder a sum of money equal to one hundred thirty
percent (130%) of the Principal Amount to be redeemed, together with accrued but
unpaid interest thereon and any and all other sums due, accrued or payable to
the Holder arising under this Note, the Subscription Agreement or any
Transaction Document through the Redemption Payment Date as defined below (the

                                       2
<PAGE>

"Redemption Amount"). Borrower's election to exercise its right to prepay must
be by notice in writing ("Notice of Redemption"). The Notice of Redemption shall
specify the date for such Optional Redemption (the "Redemption Payment Date"),
which date shall be not less than thirty (30) business days after delivery of
the Notice of Redemption (the "Redemption Period"). A Notice of Redemption shall
not be effective with respect to any portion of the Principal Amount for which
the Holder has a pending election to convert pursuant to Section 3.1, or for
conversions initiated or made by the Holder pursuant to Section 3.1 during the
Redemption Period. During the Redemption Period, the Redemption Amount may be
converted by the Holder at the lesser of the Variable Price or Fixed Conversion
Price but not less than $0.20 per share of Common stock ("Floor Price"). On the
Redemption Payment Date, the Redemption Amount less any portion of the
Redemption Amount against which the Holder has exercised its rights pursuant to
Section 3.1, shall be paid in good funds to the Holder. In the event the
Borrower fails to pay the Redemption Amount on the Redemption Payment Date as
set forth herein, then (i) such Notice of Redemption will be null and void, (ii)
Borrower will have no right to deliver another Notice of Redemption, and (iii)
Borrower's failure may be deemed by Holder to be a non-curable Event of Default.

                                   ARTICLE III

                                CONVERSION RIGHTS

      3.1. Holder's Conversion Rights. Subject to Section 3.2 and the mandatory
conversion provisions therein, the Holder shall have the right at any time, but
not the obligation, to convert all or any portion of the then aggregate
outstanding Principal Amount of this Note, and fees due hereon, and any sum
arising under the Subscription Agreement, and the Transaction Documents,
including but not limited to interest and Liquidated Damages, into shares of
Common Stock, subject to the terms and conditions set forth in this Article III
at the lesser of (i) $0.60, or (ii) 135% of the average of the five lowest
closing bid prices of the Common Stock as reported by Bloomberg L.P. for the ten
trading days preceding but not including the Actual Effective Date (as defined
in the Subscription Agreement) ("Fixed Conversion Price"). The Holder may
exercise such right by delivery to the Borrower of a written Notice of
Conversion pursuant to Section 3.3.

      3.2. Conversion Limitation. Notwithstanding anything contained herein to
the contrary, the Holder shall not be entitled to convert pursuant to the terms
of this Note nor may this Note be converted in whole or in part into an amount
of Common Stock that would be convertible into that number of Common Stock which
would exceed the difference between the number of shares of Common Stock
beneficially owned by such Holder and 4.99% of the outstanding shares of Common
Stock. For the purposes of the immediately preceding sentence, beneficial
ownership shall be determined in accordance with Section 13(d) of the Exchange
Act and Regulation 13d-3 thereunder. The foregoing limitation shall be
calculated as of each Conversion Date. Aggregate conversions over time shall not
be limited to 4.99%. The Holder may waive the Conversion Share limitation
described in this Section 3.2, in whole or in part, upon 61 days prior notice to
the Borrower. The Holder may allocate which of the equity of the Borrower deemed
beneficially owned by the Holder shall be included in the 4.99% amount described
above and which shall be allocated to the excess above 4.99%.

      3.3. Mechanics of Holder's Conversion.

            (a) In the event that the Holder elects to convert any amounts
outstanding under this Note into Common Stock, the Holder shall give notice of
such election by delivering an executed and completed notice of conversion (a
"Notice of Conversion") to the Borrower, which Notice of Conversion shall
provide a breakdown in reasonable detail of the Principal Amount, accrued

                                       3
<PAGE>

interest and amounts being converted. The original Note is not required to be
surrendered to the Borrower until all sums due under the Note have been paid. On
each Conversion Date (as hereinafter defined) and in accordance with its Notice
of Conversion, the Holder shall make the appropriate reduction to the Principal
Amount, accrued interest and fees as entered in its records. Each date on which
a Notice of Conversion is delivered or telecopied to the Borrower in accordance
with the provisions hereof shall be deemed a "Conversion Date." A form of Notice
of Conversion to be employed by the Holder is annexed hereto as Exhibit A.

            (b) Pursuant to the terms of a Notice of Conversion, the Borrower
will issue instructions to the transfer agent accompanied by an opinion of
counsel, if so required by the Borrower's transfer agent, within two (2)
business days after the date of the delivery to Borrower of the Notice of
Conversion and shall cause the transfer agent to transmit the certificates
representing the Conversion Shares to the Holder by crediting the account of the
Holder's designated broker with the Depository Trust Corporation ("DTC") through
its Deposit Withdrawal Agent Commission ("DWAC") system within three (3)
business days after receipt by the Borrower of the Notice of Conversion (the
"Delivery Date"). In the case of the exercise of the conversion rights set forth
herein the conversion privilege shall be deemed to have been exercised and the
Conversion Shares issuable upon such conversion shall be deemed to have been
issued upon the date of receipt by the Borrower of the Notice of Conversion. The
Holder shall be treated for all purposes as the record holder of such shares of
Common Stock, unless the Holder provides the Borrower written instructions to
the contrary. Notwithstanding the foregoing to the contrary, the Borrower or its
transfer agent shall only be obligated to issue and deliver the shares to the
DTC on the Holder's behalf via DWAC (or certificates free of restrictive
legends) if the registration statement providing for the resale of the shares of
Common Stock issuable upon the conversion of this Note is effective and the
Holder has complied with all applicable securities laws in connection with the
sale of the Common Stock, including, without limitation, the prospectus delivery
requirements. In the event that Conversion Shares cannot be delivered to the
Holder via DWAC, the Borrower shall deliver physical certificates representing
the Conversion Shares by the Delivery Date.

      3.4. Conversion Mechanics.

            (a) The number of shares of Common Stock to be issued upon each
conversion of this Note pursuant to this Article III shall be determined by
dividing that portion of the Principal Amount and interest and fees to be
converted, if any, by the then applicable Fixed Conversion Price.

            (b) The Fixed Conversion Price and number and kind of shares or
other securities to be issued upon conversion shall be subject to adjustment
from time to time upon the happening of certain events while this conversion
right remains outstanding, as follows:

                  A. Merger, Sale of Assets, etc. If the Borrower at any time
shall consolidate with or merge into or sell or convey all or substantially all
its assets to any other corporation, this Note, as to the unpaid principal
portion thereof and accrued interest thereon, shall thereafter be deemed to
evidence the right to purchase such number and kind of shares or other
securities and property as would have been issuable or distributable on account
of such consolidation, merger, sale or conveyance, upon or with respect to the
securities subject to the conversion or purchase right immediately prior to such
consolidation, merger, sale or conveyance. The foregoing provision shall
similarly apply to successive transactions of a similar nature by any such
successor or purchaser. Without limiting the generality of the foregoing, the
anti-dilution provisions of this Section shall apply to such securities of such
successor or purchaser after any such consolidation, merger, sale or conveyance.

                  B. Reclassification, etc. If the Borrower at any time shall,
by reclassification or otherwise, change the Common Stock into the same or a
different number of securities of any class or classes, this Note, as to the
unpaid principal portion thereof and accrued interest thereon, shall thereafter
be deemed to evidence the right to purchase an adjusted number of such
securities and kind of securities as would have been issuable as the result of
such change with respect to the Common Stock immediately prior to such
reclassification or other change.

                                       4
<PAGE>

                  C. Stock Splits, Combinations and Dividends. If the shares of
Common Stock are subdivided or combined into a greater or smaller number of
shares of Common Stock, or if a dividend is paid on the Common Stock in shares
of Common Stock, the Conversion Price shall be proportionately reduced in case
of subdivision of shares or stock dividend or proportionately increased in the
case of combination of shares, in each such case by the ratio which the total
number of shares of Common Stock outstanding immediately after such event bears
to the total number of shares of Common Stock outstanding immediately prior to
such event.

                  D. Share Issuance. So long as this Note is outstanding, if the
Borrower shall issue any Common Stock except for the Excepted Issuances (as
defined in the Subscription Agreement), prior to the complete conversion or
payment of this Note, for a consideration less than the Fixed Conversion Price
that would be in effect at the time of such issue, then, and thereafter
successively upon each such issuance, the Fixed Conversion Price shall be
reduced to such other lower issue price. For purposes of this adjustment, the
issuance of any security or debt instrument of the Borrower carrying the right
to convert such security or debt instrument into Common Stock or of any warrant,
right or option to purchase Common Stock shall result in an adjustment to the
Fixed Conversion Price upon the issuance of the above-described security, debt
instrument, warrant, right, or option and again upon the issuance of shares of
Common Stock upon exercise of such conversion or purchase rights if such
issuance is at a price lower than the then applicable Conversion Price. The
reduction of the Fixed Conversion Price described in this paragraph is in
addition to the other rights of the Holder described in the Subscription
Agreement.

            (c) Whenever the Conversion Price is adjusted pursuant to Section
3.4(b) above, the Borrower shall promptly mail to the Holder a notice setting
forth the Conversion Price after such adjustment and setting forth a statement
of the facts requiring such adjustment.

      3.5. Reservation. During the period the conversion right exists, Borrower
will reserve from its authorized and unissued Common Stock not less than one
hundred and fifty percent (150%) of the number of shares to provide for the
issuance of Common Stock upon the full conversion of this Note. Borrower
represents that upon issuance, such shares will be duly and validly issued,
fully paid and non-assessable. Borrower agrees that its issuance of this Note
shall constitute full authority to its officers, agents, and transfer agents who
are charged with the duty of executing and issuing stock certificates to execute
and issue the necessary certificates for shares of Common Stock upon the
conversion of this Note.

      3.6 Issuance of Replacement Note. Upon any partial conversion of this
Note, a replacement Note containing the same date and provisions of this Note
shall, at the written request of the Holder, be issued by the Borrower to the
Holder for the outstanding Principal Amount of this Note and accrued interest
which shall not have been converted or paid, provided Holder has surrendered an
original Note to the Company. In the event that the Holder elects not to
surrender a Note for reissuance upon partial payment or conversion, the Holder
hereby indemnifies the Borrower against any and all loss or damage attributable
to a third-party claim in an amount in excess of the actual amount then due
under the Note.

                                   ARTICLE IV

                                EVENTS OF DEFAULT

      The occurrence of any of the following events of default ("Event of
Default") shall, at the option of the Holder hereof, make all sums of principal
and interest then remaining unpaid hereon and all other amounts payable
hereunder immediately due and payable, upon demand, without presentment, or
grace period, all of which hereby are expressly waived, except as set forth
below:

                                       5
<PAGE>

      4.1 Failure to Pay Principal or Interest. The Borrower fails to pay any
installment of Principal Amount, interest or other sum due under this Note or
any Transaction Document when due and such failure continues for a period of
five (5) business days after the due date.

      4.2 Breach of Covenant. The Borrower breaches any material covenant or
other term or condition of the Subscription Agreement, this Note or Transaction
Document in any material respect and such breach, if subject to cure, continues
for a period of ten (10) business days after written notice to the Borrower from
the Holder.

      4.3 Breach of Representations and Warranties. Any material representation
or warranty of the Borrower made herein, in the Subscription Agreement,
Transaction Document or in any agreement, statement or certificate given in
writing pursuant hereto or in connection herewith or therewith shall be false or
misleading in any material respect as of the date made and a Closing Date.

      4.4 Receiver or Trustee. The Borrower or any Subsidiary of Borrower shall
make an assignment for the benefit of creditors, or apply for or consent to the
appointment of a receiver or trustee for them or for a substantial part of their
property or business; or such a receiver or trustee shall otherwise be
appointed.

      4.5 Judgments. Any money judgment, writ or similar final process shall be
entered or filed against Borrower or any subsidiary of Borrower or any of their
property or other assets for more than $50,000, and shall remain unvacated,
unbonded or unstayed for a period of forty-five (45) days.

      4.6 Non-Payment. The Borrower shall have received a notice of default,
which remains uncured for a period of more than twenty (20) days, on the payment
of any one or more debts or obligations aggregating in excess of One Hundred
Thousand Dollars (US $100,000.00) beyond any applicable grace period;

      4.7 Bankruptcy. Bankruptcy, insolvency, reorganization or liquidation
proceedings or other proceedings or relief under any bankruptcy law or any law,
or the issuance of any notice in relation to such event, for the relief of
debtors shall be instituted by or against the Borrower or any Subsidiary of
Borrower and if instituted against them are not dismissed within forty-five (45)
days of initiation.

      4.8 Delisting. Delisting of the Common Stock from the OTC Bulletin Board
("Bulletin Board") or other Principal Market; failure to comply with the
requirements for continued listing on the Bulletin Board for a period of seven
consecutive trading days; or notification from the Bulletin Board or any
Principal Market that the Borrower is not in compliance with the conditions for
such continued listing on the Bulletin Board or other Principal Market.

      4.9 Stop Trade. An SEC or judicial stop trade order or Principal Market
trading suspension with respect to Borrower's Common Stock that lasts for five
or more consecutive trading days.

      4.10 Failure to Deliver Common Stock or Replacement Note. Borrower's
failure to timely deliver Common Stock to the Holder pursuant to and in the form
required by this Note or the Subscription Agreement, and, if requested by
Borrower, a replacement Note.

      4.11 Non-Registration Event. The occurrence of a Non-Registration Event as
described in the Subscription Agreement.

      4.12 Reverse Splits. The Borrower effectuates a reverse split of its
Common Stock without twenty days prior written notice to the Holder.

                                       6
<PAGE>

      4.13 Cross Default. A default by the Borrower of a material term,
covenant, warranty or undertaking of any Transaction Document or other agreement
to which the Borrower and Holder are parties, or the occurrence of a material
event of default under any such other agreement which is not cured after any
required notice and/or cure period.

                                    ARTICLE V

                                  MISCELLANEOUS

      5.1 Failure or Indulgence Not Waiver. No failure or delay on the part of
Holder hereof in the exercise of any power, right or privilege hereunder shall
operate as a waiver thereof, nor shall any single or partial exercise of any
such power, right or privilege preclude other or further exercise thereof or of
any other right, power or privilege. All rights and remedies existing hereunder
are cumulative to, and not exclusive of, any rights or remedies otherwise
available.

      5.2 Notices. All notices, demands, requests, consents, approvals, and
other communications required or permitted hereunder shall be in writing and,
unless otherwise specified herein, shall be (i) personally served, (ii)
deposited in the mail, registered or certified, return receipt requested,
postage prepaid, (iii) delivered by reputable air courier service with charges
prepaid, or (iv) transmitted by hand delivery, telegram, or facsimile, addressed
as set forth below or to such other address as such party shall have specified
most recently by written notice. Any notice or other communication required or
permitted to be given hereunder shall be deemed effective (a) upon hand delivery
or delivery by facsimile, with accurate confirmation generated by the
transmitting facsimile machine, at the address or number designated below (if
delivered on a business day during normal business hours where such notice is to
be received), or the first business day following such delivery (if delivered
other than on a business day during normal business hours where such notice is
to be received) or (b) on the second business day following the date of mailing
by express courier service, fully prepaid, addressed to such address, or upon
actual receipt of such mailing, whichever shall first occur. The addresses for
such communications shall be: (i) if to the Borrower to: Canwest Petroleum
Corporation, 206-475 Howe Street, Vancouver, British Columbia, Canada V6C 2B3,
Attn: Thornton J. Donaldson , CEO, telecopier number: (604) 606-7980, with an
additional copy only to: George Orr, Suite 420-475 Howe Street, Vancouver,
British Columbia, Canada V6C 2B3, telecopier number: (604) 606-7980, and (ii) if
to the Holder, to the name, address and telecopy number set forth on the front
page of this Note, with a copy by telecopier only to Grushko & Mittman, P.C.,
551 Fifth Avenue, Suite 1601, New York, New York 10176, telecopier number: (212)
697-3575.

      5.3 Amendment Provision. The term "Note" and all reference thereto, as
used throughout this instrument, shall mean this instrument as originally
executed, or if later amended or supplemented, then as so amended or
supplemented.

      5.4 Assignability. This Note shall be binding upon the Borrower and its
successors and assigns, and shall inure to the benefit of the Holder and its
successors and assigns.

      5.5 Cost of Collection. If default is made in the payment of this Note,
Borrower shall pay the Holder hereof reasonable costs of collection, including
reasonable attorneys' fees.

      5.6 Governing Law. This Note shall be governed by and construed in
accordance with the laws of the State of New York, without regard to conflicts
of laws principles that would result in the application of the substantive laws
of another jurisdiction. Any action brought by either party against the other
concerning the transactions contemplated by this Agreement shall be brought only
in the state courts of New York or in the federal courts located in the state of
New York. Both parties and the individual signing this Note on behalf of the
Borrower agree to submit to the jurisdiction of such courts. The prevailing

                                       7
<PAGE>

party shall be entitled to recover from the other party its reasonable
attorney's fees and costs. In the event that any provision of this Note is
invalid or unenforceable under any applicable statute or rule of law, then such
provision shall be deemed inoperative to the extent that it may conflict
therewith and shall be deemed modified to conform with such statute or rule of
law. Any such provision which may prove invalid or unenforceable under any law
shall not affect the validity or unenforceability of any other provision of this
Note. Nothing contained herein shall be deemed or operate to preclude the Holder
from bringing suit or taking other legal action against the Borrower in any
other jurisdiction to collect on the Borrower's obligations to Holder, to
realize on any collateral or any other security for such obligations, or to
enforce a judgment or other court in favor of the Holder.

      5.7 Maximum Payments. Nothing contained herein shall be deemed to
establish or require the payment of a rate of interest or other charges in
excess of the maximum permitted by applicable law. In the event that the rate of
interest required to be paid or other charges hereunder exceed the maximum
permitted by such law, any payments in excess of such maximum shall be credited
against amounts owed by the Borrower to the Holder and thus refunded to the
Borrower.

      5.8. Construction. Each party acknowledges that its legal counsel
participated in the preparation of this Note and, therefore, stipulates that the
rule of construction that ambiguities are to be resolved against the drafting
party shall not be applied in the interpretation of this Note to favor any party
against the other.

      5.9 Redemption. This Note may not be redeemed or called without the
consent of the Holder except as described in this Note.

      5.10 Shareholder Status. The Holder shall not have rights as a shareholder
of the Borrower with respect to unconverted portions of this Note. However, the
Holder will have the rights of a shareholder of the Borrower with respect to the
Shares of Common Stock to be received after delivery by the Holder of a
Conversion Notice to the Borrower.

                                       8
<PAGE>

      IN WITNESS WHEREOF, Borrower has caused this Note to be signed in its name
by an authorized officer as of the ____ day of June, 2005.

                                   CANWEST PETROLEUM CORPORATION

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

WITNESS:

----------------------------------

                                       9
<PAGE>

                              NOTICE OF CONVERSION

(To be executed by the Registered Holder in order to convert the Note)

      The undersigned hereby elects to convert $_________ of the principal and
$_________ of the interest due on the Note issued by Canwest Petroleum
Corporation on June ___, 2005 into Shares of Common Stock of Canwest Petroleum
Corporation (the "Borrower") according to the conditions set forth in such Note,
as of the date written below.

Date of Conversion:_____________________________________________________________

Conversion Price:_______________________________________________________________

Number of Shares of Common Stock Beneficially Owned on the Conversion Date: Less
than 5% of the outstanding Common Stock of Canwest Petroleum Corporation

Shares To Be Delivered:_________________________________________________________

Signature:______________________________________________________________________

Print Name:_____________________________________________________________________

Address:________________________________________________________________________

        ________________________________________________________________________

                                       10
<PAGE>

THIS WARRANT AND THE COMMON SHARES ISSUABLE UPON EXERCISE OF THIS WARRANT HAVE
NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED. THIS WARRANT
AND THE COMMON SHARES ISSUABLE UPON EXERCISE OF THIS WARRANT MAY NOT BE SOLD,
OFFERED FOR SALE, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF AN EFFECTIVE
REGISTRATION STATEMENT UNDER SAID ACT OR AN OPINION OF COUNSEL REASONABLY
SATISFACTORY TO CANWEST PETROLEUM CORPORATION THAT SUCH REGISTRATION IS NOT
REQUIRED.

                                   Right to Purchase ________ shares of
                                   Common Stock of Canwest Petroleum Corporation
                                   (subject to adjustment as provided herein)

                      CLASS A COMMON STOCK PURCHASE WARRANT

No. 2005-A-001                                         Issue Date: June __, 2005

      CANWEST PETROLEUM CORPORATION, a corporation organized under the laws of
the State of Colorado (the "Company"), hereby certifies that, for value
received, ____________________, or its assigns (the "Holder"), is entitled,
subject to the terms set forth below, to purchase from the Company at any time
after the Issue Date until 5:00 p.m., E.S.T on the second (2nd) anniversary of
the Issue Date (the "Expiration Date"), up to ________ fully paid and
nonassessable shares of Common Stock at a per share purchase price of $0.55. The
aforedescribed purchase price per share, as adjusted from time to time as herein
provided, is referred to herein as the "Purchase Price." The number and
character of such shares of Common Stock and the Purchase Price are subject to
adjustment as provided herein. The Company may reduce the Purchase Price without
the consent of the Holder. Capitalized terms used and not otherwise defined
herein shall have the meanings set forth in that certain Subscription Agreement
(the "Subscription Agreement"), dated June ____, 2005, entered into by the
Company and Holders of the Class A Warrants.

      As used herein the following terms, unless the context otherwise requires,
have the following respective meanings:

      (a) The term "Company" shall include Canwest Petroleum Corporation and any
corporation which shall succeed or assume the obligations of Canwest Petroleum
Corporation hereunder.

      (b) The term "Common Stock" includes (a) the Company's Common Stock, $.001
par value per share, as authorized on the date of the Subscription Agreement,
and (b) any other securities into which or for which any of the securities
described in (a) may be converted or exchanged pursuant to a plan of
recapitalization, reorganization, merger, sale of assets or otherwise.

      (c) The term "Other Securities" refers to any stock (other than Common
Stock) and other securities of the Company or any other person (corporate or
otherwise) which the holder of the Warrant at any time shall be entitled to
receive, or shall have received, on the exercise of the Warrant, in lieu of or
in addition to Common Stock, or which at any time shall be issuable or shall
have been issued in exchange for or in replacement of Common Stock or Other
Securities pursuant to Section 5 or otherwise.

      (d) The term "Warrant Shares" shall mean the Common Stock issuable upon
exercise of this Warrant.

                                       11
<PAGE>

      1. Exercise of Warrant.

            1.1. Number of Shares Issuable upon Exercise. From and after the
Issue Date through and including the Expiration Date, the Holder hereof shall be
entitled to receive, upon exercise of this Warrant in whole in accordance with
the terms of subsection 1.2 or upon exercise of this Warrant in part in
accordance with subsection 1.3, shares of Common Stock of the Company, subject
to adjustment pursuant to Section 4.

            1.2. Full Exercise. This Warrant may be exercised in full by the
Holder hereof by delivery of an original or facsimile copy of the form of
subscription attached as Exhibit A hereto (the "Subscription Form") duly
executed by such Holder and surrender of the original Warrant within four (4)
days of exercise, to the Company at its principal office or at the office of its
Warrant Agent (as provided hereinafter), accompanied by payment, in cash, wire
transfer or by certified or official bank check payable to the order of the
Company, in the amount obtained by multiplying the number of shares of Common
Stock for which this Warrant is then exercisable by the Purchase Price then in
effect.

            1.3. Partial Exercise. This Warrant may be exercised in part (but
not for a fractional share) by surrender of this Warrant in the manner and at
the place provided in subsection 1.2 except that the amount payable by the
Holder on such partial exercise shall be the amount obtained by multiplying (a)
the number of whole shares of Common Stock designated by the Holder in the
Subscription Form by (b) the Purchase Price then in effect. On any such partial
exercise, the Company, at its expense, will forthwith issue and deliver to or
upon the order of the Holder hereof a new Warrant of like tenor, in the name of
the Holder hereof or as such Holder (upon payment by such Holder of any
applicable transfer taxes) may request, the whole number of shares of Common
Stock for which such Warrant may still be exercised.

            1.4. Fair Market Value. Fair Market Value of a share of Common Stock
as of a particular date (the "Determination Date") shall mean:

                  (a) If the Company's Common Stock is traded on an exchange or
is quoted on the National Association of Securities Dealers, Inc. Automated
Quotation ("NASDAQ"), National Market System, the NASDAQ SmallCap Market or the
American Stock Exchange, LLC, then the closing or last sale price, respectively,
reported for the last business day immediately preceding the Determination Date;

                  (b) If the Company's Common Stock is not traded on an exchange
or on the NASDAQ National Market System, the NASDAQ SmallCap Market or the
American Stock Exchange, Inc., but is traded in the over-the-counter market,
then the average of the closing bid and ask prices reported for the last
business day immediately preceding the Determination Date;

                  (c) Except as provided in clause (d) below, if the Company's
Common Stock is not publicly traded, then as the Holder and the Company agree,
or in the absence of such an agreement, by arbitration in accordance with the
rules then standing of the American Arbitration Association, before a single
arbitrator to be chosen from a panel of persons qualified by education and
training to pass on the matter to be decided; or

                  (d) If the Determination Date is the date of a liquidation,
dissolution or winding up, or any event deemed to be a liquidation, dissolution
or winding up pursuant to the Company's charter, then all amounts to be payable
per share to holders of the Common Stock pursuant to the charter in the event of
such liquidation, dissolution or winding up, plus all other amounts to be
payable per share in respect of the Common Stock in liquidation under the
charter, assuming for the purposes of this clause (d) that all of the shares of
Common Stock then issuable upon exercise of all of the Warrants are outstanding
at the Determination Date.

                                       12
<PAGE>

            1.5. Company Acknowledgment. The Company will, at the time of the
exercise of the Warrant, upon the request of the Holder hereof acknowledge in
writing its continuing obligation to afford to such Holder any rights to which
such Holder shall continue to be entitled after such exercise in accordance with
the provisions of this Warrant. If the Holder shall fail to make any such
request, such failure shall not affect the continuing obligation of the Company
to afford to such Holder any such rights.

            1.6. Trustee for Warrant Holders. In the event that a bank or trust
company shall have been appointed as trustee for the Holder of the Warrants
pursuant to Subsection 3.2, such bank or trust company shall have all the powers
and duties of a warrant agent (as hereinafter described) and shall accept, in
its own name for the account of the Company or such successor person as may be
entitled thereto, all amounts otherwise payable to the Company or such
successor, as the case may be, on exercise of this Warrant pursuant to this
Section 1.

            1.7 Delivery of Stock Certificates, etc. on Exercise. The Company
agrees that the shares of Common Stock purchased upon exercise of this Warrant
shall be deemed to be issued to the Holder hereof as the record owner of such
shares as of the close of business on the date on which this Warrant shall have
been surrendered and payment made for such shares as aforesaid. As soon as
practicable after the exercise of this Warrant in full or in part, and in any
event within four (4) business days thereafter, the Company at its expense
(including the payment by it of any applicable issue taxes) will cause to be
issued in the name of and delivered to the Holder hereof, or as such Holder
(upon payment by such Holder of any applicable transfer taxes) may direct in
compliance with applicable securities laws, a certificate or certificates for
the number of duly and validly issued, fully paid and nonassessable shares of
Common Stock (or Other Securities) to which such Holder shall be entitled on
such exercise, plus, in lieu of any fractional share to which such Holder would
otherwise be entitled, cash equal to such fraction multiplied by the then Fair
Market Value of one full share of Common Stock, together with any other stock or
other securities and property (including cash, where applicable) to which such
Holder is entitled upon such exercise pursuant to Section 1 or otherwise.

      2. Cashless Exercise.

            (a) If a Registration Statement (as defined in the Subscription
Agreement) ("Registration Statement") is effective and the Holder may sell its
shares of Common Stock upon exercise hereof pursuant to the Registration
Statement, this Warrant may be exercisable in whole or in part for cash only as
set forth in Section 1 above. If no such Registration Statement is available
during the time that such Registration Statement is required to be effective
pursuant to the terms of the Subscription Agreement, then payment upon exercise
may be made at the option of the Holder either in (i) cash, wire transfer or by
certified or official bank check payable to the order of the Company equal to
the applicable aggregate Purchase Price, (ii) by delivery of Common Stock
issuable upon exercise of the Warrants in accordance with Section (b) below or
(iii) by a combination of any of the foregoing methods, for the number of Common
Stock specified in such form (as such exercise number shall be adjusted to
reflect any adjustment in the total number of shares of Common Stock issuable to
the holder per the terms of this Warrant) and the holder shall thereupon be
entitled to receive the number of duly authorized, validly issued, fully-paid
and non-assessable shares of Common Stock (or Other Securities) determined as
provided herein.

            (b) If the Fair Market Value of one share of Common Stock is greater
than the Purchase Price (at the date of calculation as set forth below), in lieu
of exercising this Warrant for cash, the holder may elect to receive shares
equal to the value (as determined below) of this Warrant (or the portion thereof
being cancelled) by surrender of this Warrant at the principal office of the
Company together with the properly endorsed Subscription Form in which event the
Company shall issue to the holder a number of shares of Common Stock computed
using the following formula:

                                       13
<PAGE>

            X=Y   (A-B)
                ---------
                    A

            Where       X=    the number of shares of Common Stock to be issued
                              to the holder

                        Y=    the number of shares of Common Stock purchasable
                              under the Warrant or, if only a portion of the
                              Warrant is being exercised, the portion of the
                              Warrant being exercised (at the date of such
                              calculation)

                        A=    the Fair Market Value of one share of the
                              Company's Common Stock (at the date of such
                              calculation)

                        B=    Purchase Price (as adjusted to the date of such
                              calculation)

            (b) The Holder may employ the cashless exercise feature described in
Section (b) above only during the pendency of a Non-Registration Event as
described in Section 11 of the Subscription Agreement.

      For purposes of Rule 144 promulgated under the 1933 Act, it is intended,
understood and acknowledged that the Warrant Shares issued in a cashless
exercise transaction shall be deemed to have been acquired by the Holder, and
the holding period for the Warrant Shares shall be deemed to have commenced, on
the date this Warrant was originally issued pursuant to the Subscription
Agreement.

      3. Adjustment for Reorganization, Consolidation, Merger, etc.

            3.1. Reorganization, Consolidation, Merger, etc. In case at any time
or from time to time, the Company shall (a) effect a reorganization, (b)
consolidate with or merge into any other person or (c) transfer all or
substantially all of its properties or assets to any other person under any plan
or arrangement contemplating the dissolution of the Company, then, in each such
case, as a condition to the consummation of such a transaction, proper and
adequate provision shall be made by the Company whereby the Holder of this
Warrant, on the exercise hereof as provided in Section 1, at any time after the
consummation of such reorganization, consolidation or merger or the effective
date of such dissolution, as the case may be, shall receive, in lieu of the
Common Stock (or Other Securities) issuable on such exercise prior to such
consummation or such effective date, the stock and other securities and property
(including cash) to which such Holder would have been entitled upon such
consummation or in connection with such dissolution, as the case may be, if such
Holder had so exercised this Warrant, immediately prior thereto, all subject to
further adjustment thereafter as provided in Section 4.

            3.2. Dissolution. In the event of any dissolution of the Company
following the transfer of all or substantially all of its properties or assets,
the Company, prior to such dissolution, shall at its expense deliver or cause to
be delivered the stock and other securities and property (including cash, where
applicable) receivable by the Holder of the Warrants after the effective date of
such dissolution pursuant to this Section 3 to a bank or trust company (a
"Trustee") having its principal office in New York, NY, as trustee for the
Holder of the Warrants.

            3.3. Continuation of Terms. Upon any reorganization, consolidation,
merger or transfer (and any dissolution following any transfer) referred to in
this Section 3, this Warrant shall continue in full force and effect and the
terms hereof shall be applicable to the Other Securities and property receivable
on the exercise of this Warrant after the consummation of such reorganization,
consolidation or merger or the effective date of dissolution following any such
transfer, as the case may be, and shall be binding upon the issuer of any Other
Securities, including, in the case of any such transfer, the person acquiring
all or substantially all of the properties or assets of the Company, whether or
not such person shall have expressly assumed the terms of this Warrant as
provided in Section 4. In the event this Warrant does not continue in full force
and effect after the consummation of the transaction described in this Section
3, then only in such event will the Company's securities and property (including
cash, where applicable) receivable by the Holder of the Warrants be delivered to
the Trustee as contemplated by Section 3.2.

                                       14
<PAGE>

            3.4 Share Issuance. Until the Expiration Date, if the Company shall
issue any Common Stock except for the Excepted Issuances (as defined in the
Subscription Agreement), prior to the complete exercise of this Warrant for a
consideration less than the Purchase Price that would be in effect at the time
of such issue, then, and thereafter successively upon each such issue, the
Purchase Price shall be reduced to such other lower issue price. For purposes of
this adjustment, the issuance of any security or debt instrument of the Company
carrying the right to convert such security or debt instrument into Common Stock
or of any warrant, right or option to purchase Common Stock shall result in an
adjustment to the Purchase Price upon the issuance of the above-described
security, debt instrument, warrant, right, or option and again at any time upon
any subsequent issuances of shares of Common Stock upon exercise of such
conversion or purchase rights if such issuance is at a price lower than the
Purchase Price in effect upon such issuance. The reduction of the Purchase Price
described in this Section 3.4 is in addition to the other rights of the Holder
described in the Subscription Agreement.

      4. Extraordinary Events Regarding Common Stock. In the event that the
Company shall (a) issue additional shares of the Common Stock as a dividend or
other distribution on outstanding Common Stock, (b) subdivide its outstanding
shares of Common Stock, or (c) combine its outstanding shares of the Common
Stock into a smaller number of shares of the Common Stock, then, in each such
event, the Purchase Price shall, simultaneously with the happening of such
event, be adjusted by multiplying the then Purchase Price by a fraction, the
numerator of which shall be the number of shares of Common Stock outstanding
immediately prior to such event and the denominator of which shall be the number
of shares of Common Stock outstanding immediately after such event, and the
product so obtained shall thereafter be the Purchase Price then in effect. The
Purchase Price, as so adjusted, shall be readjusted in the same manner upon the
happening of any successive event or events described herein in this Section 4.
The number of shares of Common Stock that the Holder of this Warrant shall
thereafter, on the exercise hereof as provided in Section 1, be entitled to
receive shall be adjusted to a number determined by multiplying the number of
shares of Common Stock that would otherwise (but for the provisions of this
Section 4) be issuable on such exercise by a fraction of which (a) the numerator
is the Purchase Price that would otherwise (but for the provisions of this
Section 4) be in effect, and (b) the denominator is the Purchase Price in effect
on the date of such exercise.

      5. Certificate as to Adjustments. In each case of any adjustment or
readjustment in the shares of Common Stock (or Other Securities) issuable on the
exercise of the Warrants, the Company at its expense will promptly cause its
Chief Financial Officer or other appropriate designee to compute such adjustment
or readjustment in accordance with the terms of the Warrant and prepare a
certificate setting forth such adjustment or readjustment and showing in detail
the facts upon which such adjustment or readjustment is based, including a
statement of (a) the consideration received or receivable by the Company for any
additional shares of Common Stock (or Other Securities) issued or sold or deemed
to have been issued or sold, (b) the number of shares of Common Stock (or Other
Securities) outstanding or deemed to be outstanding, and (c) the Purchase Price
and the number of shares of Common Stock to be received upon exercise of this
Warrant, in effect immediately prior to such adjustment or readjustment and as
adjusted or readjusted as provided in this Warrant. The Company will forthwith
mail a copy of each such certificate to the Holder of the Warrant and any
Warrant Agent of the Company (appointed pursuant to Section 11 hereof).

      6. Reservation of Stock, etc. Issuable on Exercise of Warrant; Financial
Statements. The Company will at all times reserve and keep available, solely for
issuance and delivery on the exercise of the Warrants, all shares of Common

                                       15
<PAGE>

Stock (or Other Securities) from time to time issuable on the exercise of the
Warrant. This Warrant entitles the Holder hereof to receive copies of all
financial and other information distributed or required to be distributed to the
holders of the Company's Common Stock.

      7. Assignment; Exchange of Warrant. Subject to compliance with applicable
securities laws, this Warrant, and the rights evidenced hereby, may be
transferred by any registered holder hereof (a "Transferor"). On the surrender
for exchange of this Warrant, with the Transferor's endorsement in the form of
Exhibit B attached hereto (the "Transferor Endorsement Form") and together with
an opinion of counsel reasonably satisfactory to the Company that the transfer
of this Warrant will be in compliance with applicable securities laws, the
Company at its expense, twice, only, but with payment by the Transferor of any
applicable transfer taxes, will issue and deliver to or on the order of the
Transferor thereof a new Warrant or Warrants of like tenor, in the name of the
Transferor and/or the transferee(s) specified in such Transferor Endorsement
Form (each a "Transferee"), calling in the aggregate on the face or faces
thereof for the number of shares of Common Stock called for on the face or faces
of the Warrant so surrendered by the Transferor. No such transfers shall result
in a public distribution of the Warrant.

      8. Replacement of Warrant. On receipt of evidence reasonably satisfactory
to the Company of the loss, theft, destruction or mutilation of this Warrant
and, in the case of any such loss, theft or destruction of this Warrant, on
delivery of an indemnity agreement or security reasonably satisfactory in form
and amount to the Company or, in the case of any such mutilation, on surrender
and cancellation of this Warrant, the Company at its expense, twice only, will
execute and deliver, in lieu thereof, a new Warrant of like tenor.

      9. Registration Rights. The Holder of this Warrant has been granted
certain registration rights by the Company. These registration rights are set
forth in the Subscription Agreement. The terms of the Subscription Agreement are
incorporated herein by this reference.

      10. Maximum Exercise. The Holder shall not be entitled to exercise this
Warrant on an exercise date, in connection with that number of shares of Common
Stock which would be in excess of the sum of (i) the number of shares of Common
Stock beneficially owned by the Holder and its affiliates on an exercise date,
and (ii) the number of shares of Common Stock issuable upon the exercise of this
Warrant with respect to which the determination of this limitation is being made
on an exercise date, which would result in beneficial ownership by the Holder
and its affiliates of more than 4.99% of the outstanding shares of Common Stock
on such date. For the purposes of the immediately preceding sentence, beneficial
ownership shall be determined in accordance with Section 13(d) of the Securities
Exchange Act of 1934, as amended, and Regulation 13d-3 thereunder. Subject to
the foregoing, the Holder shall not be limited to aggregate exercises which
would result in the issuance of more than 4.99%. The restriction described in
this paragraph may be waived, in whole or in part, upon sixty-one (61) days
prior notice from the Holder to the Company. The Holder may allocate which of
the equity of the Company deemed beneficially owned by the Subscriber shall be
included in the 4.99% amount described above and which shall be allocated to the
excess above 4.99%.

      11. Warrant Agent. The Company may, by written notice to the Holder of the
Warrant, appoint an agent (a "Warrant Agent") for the purpose of issuing Common
Stock (or Other Securities) on the exercise of this Warrant pursuant to Section
1, exchanging this Warrant pursuant to Section 7, and replacing this Warrant
pursuant to Section 8, or any of the foregoing, and thereafter any such
issuance, exchange or replacement, as the case may be, shall be made at such
office by such Warrant Agent.

      12. Transfer on the Company's Books. Until this Warrant is transferred on
the books of the Company, the Company may treat the registered holder hereof as
the absolute owner hereof for all purposes, notwithstanding any notice to the
contrary.

      13. Warrant Exercise Compensation. The Company has agreed to pay to the
Finders identified in the Subscription Agreement Warrant Exercise Compensation

                                       16
<PAGE>

as described in the Subscription Agreement, in the aggregate, equal to ten
percent (10%) of the cash proceeds payable to the Company upon exercise of the
Warrant. The Warrant Exercise Compensation will be paid by the Company to the
Finder not later than the fifth (5th) business day after the Company receives
cash proceeds from the exercise of this Warrant. The Holder of the Warrant has
no obligation or responsibility to pay Warrant Exercise Compensation.

      14. Notices. All notices, demands, requests, consents, approvals, and
other communications required or permitted hereunder shall be in writing and,
unless otherwise specified herein, shall be (i) personally served, (ii)
deposited in the mail, registered or certified, return receipt requested,
postage prepaid, (iii) delivered by reputable air courier service with charges
prepaid, or (iv) transmitted by hand delivery, telegram, or facsimile, addressed
as set forth below or to such other address as such party shall have specified
most recently by written notice. Any notice or other communication required or
permitted to be given hereunder shall be deemed effective (a) upon hand delivery
or delivery by facsimile, with accurate confirmation generated by the
transmitting facsimile machine, at the address or number designated below (if
delivered on a business day during normal business hours where such notice is to
be received), or the first business day following such delivery (if delivered
other than on a business day during normal business hours where such notice is
to be received) or (b) on the second business day following the date of mailing
by express courier service, fully prepaid, addressed to such address, or upon
actual receipt of such mailing, whichever shall first occur. The addresses for
such communications shall be: (i) if to the Company to: Canwest Petroleum
Corporation, 206-475 Howe Street, Vancouver, British Columbia, Canada V6C 2B3,
Attn: Thornton J. Donaldson , CEO, telecopier number: (604) 606-7980, with an
additional copy only to: George Orr, Suite 420-475 Howe Street, Vancouver,
British Columbia, Canada V6C 2B3, telecopier number: (604) 606-7980, (ii) if to
the Holder, to the address and telecopier number listed on the first paragraph
of this Warrant, with an additional copy by telecopier only to: Grushko &
Mittman, P.C., 551 Fifth Avenue, Suite 1601, New York, New York 10176,
telecopier number: (212) 697-3575, and (iii) if to the Finder, to the addresses
set forth on Schedule 8(a) to the Subscription Agreement.

      15. Miscellaneous. This Warrant and any term hereof may be changed,
waived, discharged or terminated only by an instrument in writing signed by the
party against which enforcement of such change, waiver, discharge or termination
is sought. This Warrant shall be construed and enforced in accordance with and
governed by the laws of New York. Any dispute relating to this Warrant shall be
adjudicated in New York County in the State of New York. The headings in this
Warrant are for purposes of reference only, and shall not limit or otherwise
affect any of the terms hereof. The invalidity or unenforceability of any
provision hereof shall in no way affect the validity or enforceability of any
other provision.

                                       17
<PAGE>

      IN WITNESS WHEREOF, the Company has executed this Warrant as of the date
first written above.

                                CANWEST PETROLEUM CORPORATION

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

Witness:

-----------------------------------

                                       18
<PAGE>

                                    Exhibit A

                              FORM OF SUBSCRIPTION
                   (to be signed only on exercise of Warrant)

TO: CANWEST PETROLEUM CORPORATION

The undersigned, pursuant to the provisions set forth in the attached Warrant
(No.____), hereby irrevocably elects to purchase (check applicable box):

|_|   ________ shares of the Common Stock covered by such Warrant; or

|_|   the maximum number of shares of Common Stock covered by such Warrant
      pursuant to the cashless exercise procedure set forth in Section 2.

The undersigned herewith makes payment of the full purchase price for such
shares at the price per share provided for in such Warrant, which is
$___________. Such payment takes the form of (check applicable box or boxes):

|_|   $__________ in lawful money of the United States; and/or

|_|   the cancellation of such portion of the attached Warrant as is exercisable
      for a total of _______ shares of Common Stock (using a Fair Market Value
      of $_______ per share for purposes of this calculation); and/or

|_|   the cancellation of such number of shares of Common Stock as is necessary,
      in accordance with the formula set forth in Section 2, to exercise this
      Warrant with respect to the maximum number of shares of Common Stock
      purchasable pursuant to the cashless exercise procedure set forth in
      Section 2.

The undersigned requests that the certificates for such shares be issued in the
name of, and delivered to _____________________________ whose address is
________________________________________________________________________________
________________________________________

Number of Shares of Common Stock Beneficially Owned on the date of exercise:
Less than five percent (5%) of the outstanding Common Stock of Canwest Petroleum
Corporation.

The undersigned represents and warrants that all offers and sales by the
undersigned of the securities issuable upon exercise of the within Warrant shall
be made pursuant to registration of the Common Stock under the Securities Act of
1933, as amended (the "Securities Act"), or pursuant to an exemption from
registration under the Securities Act.

Dated:___________________              _________________________________________
                                       (Signature must conform to name of holder
                                        as specified on the face of the Warrant)

                                       _________________________________________

                                       _________________________________________
                                                      (Address)

                                       19
<PAGE>

                                    Exhibit B

                         FORM OF TRANSFEROR ENDORSEMENT
                   (To be signed only on transfer of Warrant)

            For value received, the undersigned hereby sells, assigns, and
transfers unto the person(s) named below under the heading "Transferees" the
right represented by the within Warrant to purchase the percentage and number of
shares of Common Stock of CANWEST PETROLEUM CORPORATION to which the within
Warrant relates specified under the headings "Percentage Transferred" and
"Number Transferred," respectively, opposite the name(s) of such person(s) and
appoints each such person Attorney to transfer its respective right on the books
of CANWEST PETROLEUM CORPORATION with full power of substitution in the
premises.

--------------------------------------------------------------------------------
Transferees           Percentage Transferred           Number Transferred
--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

Dated:_____________, ______            _________________________________________
                                       (Signature must conform to name of holder
                                        as specified on the face of the Warrant)

Signed in the presence of:

_________________________________      _________________________________________
         (Name)
                                       _________________________________________
                                                      (address)

ACCEPTED AND AGREED:
[TRANSFEREE]

_________________________________      _________________________________________
         (Name)
                                       _________________________________________
                                                      (address)

                                       20

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