DATED: FEBRUARY 1, 2006

      NEITHER THIS DEBENTURE NOR THE SECURITIES INTO WHICH THIS DEBENTURE IS
      CONVERTIBLE HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE
      COMMISSION OR THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN
      EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED
      (THE "SECURITIES ACT"), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD
      EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE
      SECURITIES ACT OR PURSUANT TO AN AVAILABLE EXEMPTION FROM, OR IN A
      TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE
      SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE SECURITIES LAWS.

No. TAIB-1                                                              $250,000

                           GULF COAST OIL & GAS, INC.

                          SECURED CONVERTIBLE DEBENTURE

                              DUE FEBRUARY 1, 2009

      This Secured Convertible Debenture (the "Debenture") is issued on February
1, 2006 by GULF COAST OIL & GAS, INC., a Nevada corporation (the "Obligor"), to
TAIB BANK, B.S.C.(C) (the "Holder"), pursuant to that certain Securities
Purchase Agreement (the "Securities Purchase Agreement") of even date herewith.

      FOR VALUE RECEIVED, the Obligor hereby promises to pay to the Holder or
its successors and assigns the principal sum of Two Hundred Fifty Thousand
Dollars ($250,000) together with accrued but unpaid interest on or before
February 1, 2009 (the "Maturity Date") in accordance with the following terms:

      INTEREST. Interest shall accrue on the outstanding principal balance
hereof at an annual rate equal to ten percent (10%). Interest shall be
calculated on the basis of a 360-day year and the actual number of days elapsed,
to the extent permitted by applicable law. Interest hereunder will be paid to
the Holder or its assignee (as defined in SECTION 4) in whose name this
Debenture is registered on the records of the Obligor regarding registration and
transfers of Debentures (the "Debenture Register").

      RIGHT OF REDEMPTION. If the Closing Bid Price of the Obligor's Common
Stock, as reported by Bloomberg L.P. is less than the Fixed Price, the Obligor
at its option shall have the right, with three (3) business days advance written
notice (the "Redemption Notice"), to redeem a portion or all amounts outstanding
under this Debenture prior to the Maturity Date for a price equal to the
principal amount and accrued interest thereon being redeemed, plus a redemption
premium of twenty percent (20%) ("Redemption Premium") of the principal amount
being redeemed (collectively referred to as the "Redemption Amount"). The
Obligor shall deliver to the Holder the Redemption Amount on the third (3rd)
business day after the Redemption Notice.


                                       1
<PAGE>

      Notwithstanding the foregoing in the event that the Obligor has elected to
redeem a portion of the outstanding principal amount and accrued interest under
this Debenture the Holder shall still be entitled to effectuate Conversions as
contemplated hereunder.

      SECURITY AGREEMENTS. This Debenture is secured by a Security Agreement
(the "Security Agreement") between the Holder and the Obligor.

      CONSENT OF HOLDER TO SELL CAPITAL STOCK OR GRANT SECURITY INTERESTS. So
long as any amounts of this Debenture is outstanding, the Obligor shall not,
without the prior consent of the Holder, (i) issue or sell any shares of Common
Stock or preferred stock without consideration or for consideration per share
less than the Closing Bid Price of the Common Stock on the date immediately
prior to its issuance, (ii) issue or sell any preferred stock, warrant, option,
right, contract, call, or other security or instrument granting the holder
thereof the right to acquire Common Stock without consideration or for
consideration per share less than the Closing Bid Price of the Common Stock on
the date immediately prior to its issuance, (iii) enter into any security
instrument granting the holder a security interest in any or all of the assets
of the Obligor (except that the Obligor may enter into security agreements with
a third party relating to the establishment of a line of credit with a bank, or
other financial institution relating to the purchase, lease or financing of
equipment, provided, however, that except for any purchase money financing such
security interest is junior to that of the Holder created under the Transaction
Documents), or (iv) file any registration statements on Form S-8 except to
register securities to be issued under a stock incentive plan of the Obligor up
to a maximum of 18,000,000 shares of Obligor's Common Stock.

      RIGHTS OF FIRST REFUSAL. So long as any portion of this Debenture is
outstanding (including principal or accrued interest) or for a period eighteen
(18) months from the date hereof, if the Obligor intends to raise additional
capital by the issuance or sale of capital stock of the Obligor, including
without limitation shares of any class of common stock, any class of preferred
stock, options, warrants or any other securities convertible or exercisable into
shares of common stock (whether the offering is conducted by the Obligor,
underwriter, placement agent or any third party) the Obligor shall be obligated
to offer to the Holder such issuance or sale of capital stock, by providing in
writing the principal amount of capital it intends to raise and outline of the
material terms of such capital raise, prior to the offering such issuance or
sale of capital stock to any third parties including, but not limited to,
current or former officers or directors, current or former shareholders and/or
investors of the obligor, underwriters, brokers, agents or other third parties.
The Holder shall have ten (10) business days from receipt of such notice of the
sale or issuance of capital stock to accept or reject all or a portion of such
capital raising offer.

      This Debenture is subject to the following additional provisions:

      SECTION 1. This Debenture is exchangeable for an equal aggregate principal
amount of Debentures of different authorized denominations, as requested by the
Holder surrendering the same. No service charge will be made for such
registration of transfer or exchange.

      SECTION 2. Events of Default.


                                       2
<PAGE>

            (a) An "Event of Default", wherever used herein, means any one of
the following events (whatever the reason and whether it shall be voluntary or
involuntary or effected by operation of law or pursuant to any judgment, decree
or order of any court, or any order, rule or regulation of any administrative or
governmental body):

                  (i) Any default in the payment of the principal of, interest
on or other charges in respect of this Debenture, or any other convertible
debenture issued to either Cornell Capital Partners, LP or Certain Wealth, Ltd.,
free of any claim of subordination, as and when the same shall become due and
payable (whether on a Conversion Date or the Maturity Date or by acceleration or
otherwise);

                  (ii) The Obligor shall fail to observe or perform any other
covenant, agreement or warranty contained in, or otherwise commit any breach or
default of any provision of this Debenture (except as may be covered by SECTION
2(A)(I) hereof) or any Transaction Document (as defined in SECTION 4), which is
not cured within the time prescribed after written notice from the Holder;

                  (iii) The Obligor or any subsidiary of the Obligor shall
commence, or there shall be commenced against the Obligor or any subsidiary of
the Obligor under any applicable bankruptcy or insolvency laws as now or
hereafter in effect or any successor thereto, or the Obligor or any subsidiary
of the Obligor commences any other proceeding under any reorganization,
arrangement, adjustment of debt, relief of debtors, dissolution, insolvency or
liquidation or similar law of any jurisdiction whether now or hereafter in
effect relating to the Obligor or any subsidiary of the Obligor or there is
commenced against the Obligor or any subsidiary of the Obligor any such
bankruptcy, insolvency or other proceeding which remains undismissed for a
period of 61 days; or the Obligor or any subsidiary of the Obligor is
adjudicated insolvent or bankrupt; or any order of relief or other order
approving any such case or proceeding is entered; or the Obligor or any
subsidiary of the Obligor suffers any appointment of any custodian, private or
court appointed receiver or the like for it or any substantial part of its
property which continues undischarged or unstayed for a period of sixty one (61)
days; or the Obligor or any subsidiary of the Obligor makes a general assignment
for the benefit of creditors; or the Obligor or any subsidiary of the Obligor
shall fail to pay, or shall state that it is unable to pay, or shall be unable
to pay, its debts generally as they become due; or the Obligor or any subsidiary
of the Obligor shall call a meeting of its creditors with a view to arranging a
composition, adjustment or restructuring of its debts; or the Obligor or any
subsidiary of the Obligor shall by any act or failure to act expressly indicate
its consent to, approval of or acquiescence in any of the foregoing; or any
corporate or other action is taken by the Obligor or any subsidiary of the
Obligor for the purpose of effecting any of the foregoing;

                  (iv) The Obligor or any subsidiary of the Obligor shall
default in any of its obligations under any other debenture or any mortgage,
credit agreement or other facility, indenture agreement, factoring agreement or
other instrument under which there may be issued, or by which there may be
secured or evidenced any indebtedness for borrowed money or money due under any
long term leasing or factoring arrangement of the Obligor or any subsidiary of
the Obligor in an amount exceeding $100,000, whether such indebtedness now
exists or shall hereafter be created and such default shall result in such
indebtedness becoming or being declared due and payable prior to the date on
which it would otherwise become due and payable;


                                       3
<PAGE>

                  (v) The Common Stock shall cease to be quoted for trading or
listed for trading on either the Nasdaq OTC Bulletin Board ("OTC"), Nasdaq
SmallCap Market, New York Stock Exchange, American Stock Exchange or the Nasdaq
National Market (each, a "Subsequent Market") and shall not again be quoted or
listed for trading thereon within five (5) Trading Days of such delisting;

                  (vi) The Obligor or any subsidiary of the Obligor shall be a
party to any Change of Control Transaction (as defined in SECTION 4);

                  (vii) The Obligor shall fail to file the Underlying Shares
Registration Statement (as defined in SECTION 4) with the Commission (as defined
in SECTION 4), or the Underlying Shares Registration Statement shall not have
been declared effective by the Commission, in each case within the time periods
set forth in the Investor Registration Rights Agreement (the "Investor
Registration Rights Agreement") of even date herewith between the Obligor and
the Holder;

                  (viii) If the effectiveness of the Underlying Shares
Registration Statement lapses for any reason or the Holder shall not be
permitted to resell the shares of Common Stock underlying this Debenture under
the Underlying Shares Registration Statement, in either case, for more than five
(5) consecutive Trading Days or an aggregate of eight Trading Days (which need
not be consecutive Trading Days);

                  (ix) The Obligor shall fail for any reason to deliver Common
Stock certificates to a Holder prior to the fifth (5th) Trading Day after a
Conversion Date or the Obligor shall provide notice to the Holder, including by
way of public announcement, at any time, of its intention not to comply with
requests for conversions of this Debenture in accordance with the terms hereof;

                  (x) The Obligor shall fail for any reason to deliver the
payment in cash pursuant to a Buy-In (as defined herein) within three (3) days
after notice is claimed delivered hereunder;

            (b) During the time that any portion of this Debenture is
outstanding, if any Event of Default has occurred, the full principal amount of
this Debenture, together with interest and other amounts owing in respect
thereof, to the date of acceleration shall become at the Holder's election,
immediately due and payable in cash, PROVIDED HOWEVER, the Holder may request
(but shall have no obligation to request) payment of such amounts in Common
Stock of the Obligor. In addition to any other remedies, the Holder shall have
the right (but not the obligation) to convert this Debenture at any time after
(x) an Event of Default or (y) the Maturity Date at the Conversion Price then in
effect. The Holder need not provide and the Obligor hereby waives any
presentment, demand, protest or other notice of any kind, and the Holder may
immediately and without expiration of any grace period enforce any and all of
its rights and remedies hereunder and all other remedies available to it under
applicable law. Such declaration may be rescinded and annulled by Holder at any
time prior to payment hereunder. No such rescission or annulment shall affect
any subsequent Event of Default or impair any right consequent thereon. Upon an
Event of Default, notwithstanding any other provision of this Debenture or any
Transaction Document, the Holder shall have no obligation to comply with or
adhere to any limitations, if any, on the conversion of this Debenture or the
sale of the Underlying Shares.


                                       4
<PAGE>

      SECTION 3. Conversion.

      (a)   (i) Conversion at Option of Holder.

            (A) This Debenture shall be convertible into shares of Common Stock
at the option of the Holder, in whole or in part at any time and from time to
time, after the Original Issue Date (as defined in Section 4) (subject to the
limitations on conversion set forth in SECTION 3(A)(II) hereof). The number of
shares of Common Stock issuable upon a conversion hereunder equals the quotient
obtained by dividing (x) the outstanding amount of this Debenture to be
converted by (y) the Conversion Price (as defined in SECTION 3(C)(I)). The
Obligor shall deliver Common Stock certificates to the Holder prior to the Fifth
(5th) Trading Day after a Conversion Date.

            (B) Notwithstanding anything to the contrary contained herein, if on
any Conversion Date: (1) the number of shares of Common Stock at the time
authorized, unissued and unreserved for all purposes, or held as treasury stock,
is insufficient to pay principal and interest hereunder in shares of Common
Stock; (2) the Common Stock is not listed or quoted for trading on the OTC or on
a Subsequent Market; (3) the Obligor has failed to timely satisfy its
conversion; or (4) the issuance of such shares of Common Stock would result in a
violation of SECTION 3(A)(II), then, at the option of the Holder, the Obligor,
in lieu of delivering shares of Common Stock pursuant to SECTION 3(A)(I)(A),
shall deliver, within three (3) Trading Days of each applicable Conversion Date,
an amount in cash equal to the product of the outstanding principal amount to be
converted plus any interest due therein divided by the Conversion Price and
multiplied by the highest closing price of the stock from date of the conversion
notice till the date that such cash payment is made.

      Further, if the Obligor shall not have delivered any cash due in
respect of conversion of this Debenture or as payment of interest thereon by the
fifth (5th) Trading Day after the Conversion Date, the Holder may, by notice to
the Obligor, require the Obligor to issue shares of Common Stock pursuant to
SECTION 3(C), except that for such purpose the Conversion Price applicable
thereto shall be the lesser of the Conversion Price on the Conversion Date and
the Conversion Price on the date of such Holder demand. Any such shares will be
subject to the provisions of this Section.

            (C) The Holder shall effect conversions by delivering to the Obligor
a completed notice in the form attached hereto as Exhibit A (a "Conversion
Notice"). The date on which a Conversion Notice is delivered is the "Conversion
Date." Unless the Holder is converting the entire principal amount outstanding
under this Debenture, the Holder is not required to physically surrender this
Debenture to the Obligor in order to effect conversions. Conversions hereunder
shall have the effect of lowering the outstanding principal amount of this
Debenture plus all accrued and unpaid interest thereon in an amount equal to the
applicable conversion. The Holder and the Obligor shall maintain records showing
the principal amount converted and the date of such conversions. In the event of
any dispute or discrepancy, the records of the Holder shall be controlling and
determinative in the absence of manifest error.


                                       5
<PAGE>

      (ii) Certain Conversion Restrictions.

            (A) A Holder may not convert this Debenture or receive shares of
Common Stock as payment of interest hereunder to the extent such conversion or
receipt of such interest payment would result in the Holder, together with any
affiliate thereof, beneficially owning (as determined in accordance with Section
13(d) of the Exchange Act and the rules promulgated thereunder) in excess of
4.9% of the then issued and outstanding shares of Common Stock, including shares
issuable upon conversion of, and payment of interest on, this Debenture held by
such Holder after application of this Section. Since the Holder will not be
obligated to report to the Obligor the number of shares of Common Stock it may
hold at the time of a conversion hereunder, unless the conversion at issue would
result in the issuance of shares of Common Stock in excess of 4.9% of the then
outstanding shares of Common Stock without regard to any other shares which may
be beneficially owned by the Holder or an affiliate thereof, the Holder shall
have the authority and obligation to determine whether the restriction contained
in this Section will limit any particular conversion hereunder and to the extent
that the Holder determines that the limitation contained in this Section
applies, the determination of which portion of the principal amount of this
Debenture is convertible shall be the responsibility and obligation of the
Holder. If the Holder has delivered a Conversion Notice for a principal amount
of this Debenture that, without regard to any other shares that the Holder or
its affiliates may beneficially own, would result in the issuance in excess of
the permitted amount hereunder, the Obligor shall notify the Holder of this fact
and shall honor the conversion for the maximum principal amount permitted to be
converted on such Conversion Date in accordance with the periods described in
SECTION 3(A)(I)(A) and, at the option of the Holder, either retain any principal
amount tendered for conversion in excess of the permitted amount hereunder for
future conversions or return such excess principal amount to the Holder. The
provisions of this Section may be waived by a Holder (but only as to itself and
not to any other Holder) upon not less than 65 days prior notice to the Obligor.
Other Holders shall be unaffected by any such waiver.

      (b)   (i) Nothing herein shall limit a Holder's right to pursue actual
damages or declare an Event of Default pursuant to SECTION 2 herein for the
Obligor 's failure to deliver certificates representing shares of Common Stock
upon conversion within the period specified herein and such Holder shall have
the right to pursue all remedies available to it at law or in equity including,
without limitation, a decree of specific performance and/or injunctive relief,
in each case without the need to post a bond or provide other security. The
exercise of any such rights shall not prohibit the Holder from seeking to
enforce damages pursuant to any other Section hereof or under applicable law.

      (ii) In addition to any other rights available to the Holder, if the
Obligor fails to deliver to the Holder such certificate or certificates pursuant
to SECTION 3(A)(I)(A) by the fifth (5th) Trading Day after the Conversion Date,
and if after such fifth (5th) Trading Day the Holder purchases (in an open
market transaction or otherwise) Common Stock to deliver in satisfaction of a
sale by such Holder of the Underlying Shares which the Holder anticipated
receiving upon such conversion (a "Buy-In"), then the Obligor shall (A) pay in
cash to the Holder (in addition to any remedies available to or elected by the
Holder) the amount by which (x) the Holder's total purchase price (including
brokerage commissions, if any) for the Common Stock so purchased exceeds (y) the
product of (1) the aggregate number of shares of Common Stock that such Holder


                                       6
<PAGE>

anticipated receiving from the conversion at issue multiplied by (2) the market
price of the Common Stock at the time of the sale giving rise to such purchase
obligation and (B) at the option of the Holder, either reissue a Debenture in
the principal amount equal to the principal amount of the attempted conversion
or deliver to the Holder the number of shares of Common Stock that would have
been issued had the Obligor timely complied with its delivery requirements under
SECTION 3(A)(I)(A). For example, if the Holder purchases Common Stock having a
total purchase price of $11,000 to cover a Buy-In with respect to an attempted
conversion of Debentures with respect to which the market price of the
Underlying Shares on the date of conversion was a total of $10,000 under clause
(A) of the immediately preceding sentence, the Obligor shall be required to pay
the Holder $1,000. The Holder shall provide the Obligor written notice
indicating the amounts payable to the Holder in respect of the Buy-In.

      (c)   (i) The Holder is entitled, at its option, to convert, and sell on
the same day, at any time, until payment in full of this Debenture, all or any
part of the principal amount of the Debenture, plus accrued interest, into
shares of the Common Stock, par value $0.01 per share, at the price per share
equal to the lesser of (a) $.02916 (the "Fixed Price") or (b) an amount equal to
eighty percent (80%) of the lowest volume weighted price of the Common Stock, as
quoted by Bloomberg, LP, for the five (5) trading days immediately preceding the
Conversion Date which may be adjusted pursuant to the other terms of this
Debenture. Subparagraphs (a) and (b) above are individually referred to as a
"Conversion Price."

      (ii) If the Obligor, at any time while this Debenture is outstanding,
shall (a) pay a stock dividend or otherwise make a distribution or distributions
on shares of its Common Stock or any other equity or equity equivalent
securities payable in shares of Common Stock, (b) subdivide outstanding shares
of Common Stock into a larger number of shares, (c) combine (including by way of
reverse stock split) outstanding shares of Common Stock into a smaller number of
shares, or (d) issue by reclassification of shares of the Common Stock any
shares of capital stock of the Obligor, then the Fixed Price shall be multiplied
by a fraction of which the numerator shall be the number of shares of Common
Stock (excluding treasury shares, if any) outstanding before such event and of
which the denominator shall be the number of shares of Common Stock outstanding
after such event. Any adjustment made pursuant to this Section shall become
effective immediately after the record date for the determination of
stockholders entitled to receive such dividend or distribution and shall become
effective immediately after the effective date in the case of a subdivision,
combination or re-classification.

      (iii) If the Obligor, at any time while this Debenture is outstanding,
shall issue rights, options or warrants to all holders of Common Stock (and not
to the Holder) entitling them to subscribe for or purchase shares of Common
Stock at a price per share less than the Fixed Price, then the Fixed Price shall
be multiplied by a fraction, of which the denominator shall be the number of
shares of the Common Stock (excluding treasury shares, if any) outstanding on
the date of issuance of such rights or warrants (plus the number of additional
shares of Common Stock offered for subscription or purchase), and of which the
numerator shall be the number of shares of the Common Stock (excluding treasury
shares, if any) outstanding on the date of issuance of such rights or warrants,
plus the number of shares which the aggregate offering price of the total number
of shares so offered would purchase at the Fixed Price. Such adjustment shall be
made whenever such rights or warrants are issued, and shall become effective
immediately after the record date for the determination of stockholders entitled


                                       7
<PAGE>

to receive such rights, options or warrants. However, upon the expiration of any
such right, option or warrant to purchase shares of the Common Stock the
issuance of which resulted in an adjustment in the Fixed Price pursuant to this
Section, if any such right, option or warrant shall expire and shall not have
been exercised, the Fixed Price shall immediately upon such expiration be
recomputed and effective immediately upon such expiration be increased to the
price which it would have been (but reflecting any other adjustments in the
Fixed Price made pursuant to the provisions of this Section after the issuance
of such rights or warrants) had the adjustment of the Fixed Price made upon the
issuance of such rights, options or warrants been made on the basis of offering
for subscription or purchase only that number of shares of the Common Stock
actually purchased upon the exercise of such rights, options or warrants
actually exercised.

      (iv) If the Obligor or any subsidiary thereof, as applicable, at any time
while this Debenture is outstanding, shall issue shares of Common Stock or
rights, warrants, options or other securities or debt that are convertible into
or exchangeable for shares of Common Stock ("Common Stock Equivalents")
entitling any Person to acquire shares of Common Stock, at a price per share
less than the Fixed Price (if the holder of the Common Stock or Common Stock
Equivalent so issued shall at any time, whether by operation of purchase price
adjustments, reset provisions, floating conversion, exercise or exchange prices
or otherwise, or due to warrants, options or rights per share which is issued in
connection with such issuance, be entitled to receive shares of Common Stock at
a price per share which is less than the Fixed Price, such issuance shall be
deemed to have occurred for less than the Fixed Price), then, at the sole option
of the Holder, the Fixed Price shall be adjusted to mirror the conversion,
exchange or purchase price for such Common Stock or Common Stock Equivalents
(including any reset provisions thereof) at issue. Such adjustment shall be made
whenever such Common Stock or Common Stock Equivalents are issued. The Obligor
shall notify the Holder in writing, no later than one (1) business day following
the issuance of any Common Stock or Common Stock Equivalent subject to this
Section, indicating therein the applicable issuance price, or of applicable
reset price, exchange price, conversion price and other pricing terms. No
adjustment under this Section shall be made as a result of issuances and
exercises of options to purchase shares of Common Stock issued for compensatory
purposes pursuant to any of the Obligor's stock option or stock purchase plans.

      (v) If the Obligor, at any time while this Debenture is outstanding, shall
distribute to all holders of Common Stock (and not to the Holder) evidences of
its indebtedness or assets or rights or warrants to subscribe for or purchase
any security, then in each such case the Fixed Price at which this Debenture
shall thereafter be convertible shall be determined by multiplying the Fixed
Price in effect immediately prior to the record date fixed for determination of
stockholders entitled to receive such distribution by a fraction of which the
denominator shall be the Closing Bid Price determined as of the record date
mentioned above, and of which the numerator shall be such Closing Bid Price on
such record date less the then fair market value at such record date of the
portion of such assets or evidence of indebtedness so distributed applicable to
one outstanding share of the Common Stock as determined by the Board of
Directors in good faith. In either case the adjustments shall be described in a
statement provided to the Holder of the portion of assets or evidences of
indebtedness so distributed or such subscription rights applicable to one share
of Common Stock. Such adjustment shall be made whenever any such distribution is
made and shall become effective immediately after the record date mentioned
above.


                                       8
<PAGE>

      (vi) In case of any reclassification of the Common Stock or any compulsory
share exchange pursuant to which the Common Stock is converted into other
securities, cash or property, the Holder shall have the right thereafter to, at
its option, (A) convert the then outstanding principal amount, together with all
accrued but unpaid interest and any other amounts then owing hereunder in
respect of this Debenture into the shares of stock and other securities, cash
and property receivable upon or deemed to be held by holders of the Common Stock
following such reclassification or share exchange, and the Holder of this
Debenture shall be entitled upon such event to receive such amount of
securities, cash or property as the shares of the Common Stock of the Obligor
into which the then outstanding principal amount, together with all accrued but
unpaid interest and any other amounts then owing hereunder in respect of this
Debenture could have been converted immediately prior to such reclassification
or share exchange would have been entitled, or (B) require the Obligor to prepay
the outstanding principal amount of this Debenture, plus all interest and other
amounts due and payable thereon. The entire prepayment price shall be paid in
cash. This provision shall similarly apply to successive reclassifications or
share exchanges.

      (vii) The Obligor shall maintain a share reserve of not less than five
hundred percent (500%) of the shares of Common Stock issuable upon conversion of
all the convertible debentures issued under the Securities Purchase Agreement;
and within three (3) Business Days following the receipt by the Obligor of a
Holder's notice that such minimum number of Underlying Shares is not so
reserved, the Obligor shall promptly reserve a sufficient number of shares of
Common Stock to comply with such requirement.

      (viii) All calculations under this SECTION 3 shall be rounded up to the
nearest $0.001 of a share.

      (ix) Whenever the Fixed Price is adjusted pursuant to SECTION 3 hereof,
the Obligor shall promptly mail to the Holder a notice setting forth the Fixed
Price after such adjustment and setting forth a brief statement of the facts
requiring such adjustment.

      (x) If (A) the Obligor shall declare a dividend (or any other
distribution) on the Common Stock; (B) the Obligor shall declare a special
nonrecurring cash dividend on or a redemption of the Common Stock; (C) the
Obligor shall authorize the granting to all holders of the Common Stock rights
or warrants to subscribe for or purchase any shares of capital stock of any
class or of any rights; (D) the approval of any stockholders of the Obligor
shall be required in connection with any reclassification of the Common Stock,
any consolidation or merger to which the Obligor is a party, any sale or
transfer of all or substantially all of the assets of the Obligor, of any
compulsory share exchange whereby the Common Stock is converted into other
securities, cash or property; or (E) the Obligor shall authorize the voluntary
or involuntary dissolution, liquidation or winding up of the affairs of the
Obligor; then, in each case, the Obligor shall cause to be filed at each office
or agency maintained for the purpose of conversion of this Debenture, and shall
cause to be mailed to the Holder at its last address as it shall appear upon the
stock books of the Obligor, at least twenty (20) calendar days prior to the
applicable record or effective date hereinafter specified, a notice stating (x)


                                       9
<PAGE>

the date on which a record is to be taken for the purpose of such dividend,
distribution, redemption, rights or warrants, or if a record is not to be taken,
the date as of which the holders of the Common Stock of record to be entitled to
such dividend, distributions, redemption, rights or warrants are to be
determined or (y) the date on which such reclassification, consolidation,
merger, sale, transfer or share exchange is expected to become effective or
close, and the date as of which it is expected that holders of the Common Stock
of record shall be entitled to exchange their shares of the Common Stock for
securities, cash or other property deliverable upon such reclassification,
consolidation, merger, sale, transfer or share exchange, provided, that the
failure to mail such notice or any defect therein or in the mailing thereof
shall not affect the validity of the corporate action required to be specified
in such notice. The Holder is entitled to convert this Debenture during the
20-day calendar period commencing the date of such notice to the effective date
of the event triggering such notice.

      (xi) In case of any (1) merger or consolidation of the Obligor or any
subsidiary of the Obligor with or into another Person, or (2) sale by the
Obligor or any subsidiary of the Obligor of more than one-half of the assets of
the Obligor in one or a series of related transactions, a Holder shall have the
right to (A) exercise any rights under SECTION 2(B), (B) convert the aggregate
amount of this Debenture then outstanding into the shares of stock and other
securities, cash and property receivable upon or deemed to be held by holders of
Common Stock following such merger, consolidation or sale, and such Holder shall
be entitled upon such event or series of related events to receive such amount
of securities, cash and property as the shares of Common Stock into which such
aggregate principal amount of this Debenture could have been converted
immediately prior to such merger, consolidation or sales would have been
entitled, or (C) in the case of a merger or consolidation, require the surviving
entity to issue to the Holder a convertible Debenture with a principal amount
equal to the aggregate principal amount of this Debenture then held by such
Holder, plus all accrued and unpaid interest and other amounts owing thereon,
which such newly issued convertible Debenture shall have terms identical
(including with respect to conversion) to the terms of this Debenture, and shall
be entitled to all of the rights and privileges of the Holder of this Debenture
set forth herein and the agreements pursuant to which this Debentures were
issued. In the case of clause (C), the conversion price applicable for the newly
issued shares of convertible preferred stock or convertible Debentures shall be
based upon the amount of securities, cash and property that each share of Common
Stock would receive in such transaction and the Conversion Price in effect
immediately prior to the effectiveness or closing date for such transaction. The
terms of any such merger, sale or consolidation shall include such terms so as
to continue to give the Holder the right to receive the securities, cash and
property set forth in this Section upon any conversion or redemption following
such event. This provision shall similarly apply to successive such events.

            (d) The Obligor covenants that it will at all times reserve and keep
available out of its authorized and unissued shares of Common Stock solely for
the purpose of issuance upon conversion of this Debenture and payment of
interest on this Debenture, each as herein provided, free from preemptive rights
or any other actual contingent purchase rights of persons other than the Holder,
not less than five times the number of shares of the Common Stock as shall
(subject to any additional requirements of the Obligor as to reservation of such
shares set forth in this Debenture) be issuable (taking into account the
adjustments and restrictions of SECTIONS 2(B) AND 3(C)) upon the conversion of
the outstanding principal amount of all the convertible debentures and payment
of interest thereunder. The Obligor covenants that all shares of Common Stock
that shall be so issuable shall, upon issue, be duly and validly authorized,
issued and fully paid, nonassessable and, if the Underlying Shares Registration
Statement has been declared effective under the Securities Act, registered for
public sale in accordance with such Underlying Shares Registration Statement.


                                       10
<PAGE>

            (e) Upon a conversion hereunder the Obligor shall not be required to
issue stock certificates representing fractions of shares of the Common Stock,
but may if otherwise permitted, make a cash payment in respect of any final
fraction of a share based on the Closing Bid Price at such time. If the Obligor
elects not, or is unable, to make such a cash payment, the Holder shall be
entitled to receive, in lieu of the final fraction of a share, one whole share
of Common Stock.

            (f) The issuance of certificates for shares of the Common Stock on
conversion of this Debenture shall be made without charge to the Holder thereof
for any documentary stamp or similar taxes that may be payable in respect of the
issue or delivery of such certificate, provided that the Obligor shall not be
required to pay any tax that may be payable in respect of any transfer involved
in the issuance and delivery of any such certificate upon conversion in a name
other than that of the Holder of such Debenture so converted and the Obligor
shall not be required to issue or deliver such certificates unless or until the
person or persons requesting the issuance thereof shall have paid to the Obligor
the amount of such tax or shall have established to the satisfaction of the
Obligor that such tax has been paid.

            (g) Any notices, consents, waivers or other communications required
or permitted to be given under the terms hereof must be in writing and will be
deemed to have been delivered: (i) upon receipt, when delivered personally; (ii)
upon receipt, when sent by facsimile (provided confirmation of transmission is
mechanically or electronically generated and kept on file by the sending party);
or (iii) one (1) trading day after deposit with a nationally recognized
overnight delivery service, in each case properly addressed to the party to
receive the same. The addresses and facsimile numbers for such communications
shall be:

If to the
Obligor, to:      Gulf Coast Oil & Gas, Inc.
                  5847 San Felipe - Suite 1700
                  Houston, TX 77057
                  Attention: Rahim Rayani
                  Telephone: (778) 893-9377
                  Facsimile: (832) 550-2294

With a copy to:   Gallagher, Briody & Butler
                  Princeton Forrestal Village
                  155 Village Blvd., Suite 201
                  Attention: Thomas P. Gallagher, Esq.
                  Telephone: (609) 452-6000
                  Facsimile: (609) 452-0090

If to the
Holder:           TAIB Bank, B.S.C. (c)
                  c/o TAIB Securities, Inc
                  450 Park Avenue
                  New York, NY 10022
                  Attention: Larry Chaleff
                  Telephone: (212) 832-7137
                  Facsimile: (212) 832-7122


                                       11
<PAGE>

or at such other address and/or facsimile number and/or to the attention of such
other person as the recipient party has specified by written notice given to
each other party three (3) business days prior to the effectiveness of such
change. Written confirmation of receipt (i) given by the recipient of such
notice, consent, waiver or other communication, (ii) mechanically or
electronically generated by the sender's facsimile machine containing the time,
date, recipient facsimile number and an image of the first page of such
transmission or (iii) provided by a nationally recognized overnight delivery
service, shall be rebuttable evidence of personal service, receipt by facsimile
or receipt from a nationally recognized overnight delivery service in accordance
with clause (i), (ii) or (iii) above, respectively.

      SECTION 4. Definitions. For the purposes hereof, the following terms shall
have the following meanings:

      "Business Day" means any day except Saturday, Sunday and any day which
shall be a federal legal holiday in the United States or a day on which banking
institutions are authorized or required by law or other government action to
close.

      "Change of Control Transaction" means the occurrence of (a) an acquisition
after the date hereof by an individual or legal entity or "group" (as described
in Rule 13d-5(b)(1) promulgated under the Exchange Act) of effective control
(whether through legal or beneficial ownership of capital stock of the Obligor,
by contract or otherwise) of in excess of fifty percent (50%) of the voting
securities of the Obligor (except that the acquisition of voting securities by
the Holder shall not constitute a Change of Control Transaction for purposes
hereof), (b) a replacement at one time or over time of more than one-half of the
members of the board of directors of the Obligor which is not approved by a
majority of those individuals who are members of the board of directors on the
date hereof (or by those individuals who are serving as members of the board of
directors on any date whose nomination to the board of directors was approved by
a majority of the members of the board of directors who are members on the date
hereof), (c) the merger, consolidation or sale of fifty percent (50%) or more of
the assets of the Obligor or any subsidiary of the Obligor in one or a series of
related transactions with or into another entity, or (d) the execution by the
Obligor of an agreement to which the Obligor is a party or by which it is bound,
providing for any of the events set forth above in (a), (b) or (c).

      "Commission" means the Securities and Exchange Commission.

      "Common Stock" means the common stock, par value $0.001, of the Obligor
and stock of any other class into which such shares may hereafter be changed or
reclassified.

      "Conversion Date" shall mean the date upon which the Holder gives the
Obligor notice of their intention to effectuate a conversion of this Debenture
into shares of the Obligor's Common Stock as outlined herein.

      "Exchange Act" means the Securities Exchange Act of 1934, as amended.


                                       12
<PAGE>

      "Original Issue Date" shall mean the date of the first issuance of this
Debenture regardless of the number of transfers and regardless of the number of
instruments, which may be issued to evidence such Debenture.

      "Closing Bid Price" means the bid price per share in the last reported
trade of the Common Stock on the OTC or on the exchange which the Common Stock
is then listed as quoted by Bloomberg, LP.

      "Person" means a corporation, an association, a partnership, organization,
a business, an individual, a government or political subdivision thereof or a
governmental agency.

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

      "Trading Day" means a day on which the shares of Common Stock are quoted
on the OTC or quoted or traded on such Subsequent Market on which the shares of
Common Stock are then quoted or listed; provided, that in the event that the
shares of Common Stock are not listed or quoted, then Trading Day shall mean a
Business Day.

      "Transaction Documents" means the Securities Purchase Agreement or any
other agreement delivered in connection with the Securities Purchase Agreement,
including, without limitation, the Security Agreement, the Irrevocable Transfer
Agent Instructions, the Investor Registration Rights Agreement and the Warrants
of even date herewith.

      "Underlying Shares" means the shares of Common Stock issuable upon
conversion of this Debenture and or all outstanding convertible debentures as
the case may be, as payment of interest in accordance with the terms hereof.

      "Underlying Shares Registration Statement" means a registration statement
meeting the requirements set forth in the Registration Rights Agreement,
covering among other things the resale of the Underlying Shares and naming the
Holder as a "selling stockholder" thereunder.

      SECTION 5. Except as expressly provided herein, no provision of this
Debenture shall alter or impair the obligations of the Obligor, which are
absolute and unconditional, to pay the principal of, interest and other charges
(if any) on, this Debenture at the time, place, and rate, and in the coin or
currency, herein prescribed. This Debenture is a direct obligation of the
Obligor. This Debenture ranks pari passu with all other Debentures now or
hereafter issued under the terms set forth herein. As long as this Debenture is
outstanding, the Obligor shall not and shall cause their subsidiaries not to,
without the consent of the Holder, (i) amend its certificate of incorporation,
bylaws or other charter documents so as to adversely affect any rights of the
Holder; (ii) repay, repurchase or offer to repay, repurchase or otherwise
acquire shares of its Common Stock or other equity securities other than as to
the Underlying Shares to the extent permitted or required under the Transaction
Documents; or (iii) enter into any agreement with respect to any of the
foregoing.

      SECTION 6. This Debenture shall not entitle the Holder to any of the
rights of a stockholder of the Obligor, including without limitation, the right
to vote, to receive dividends and other distributions, or to receive any notice
of, or to attend, meetings of stockholders or any other proceedings of the
Obligor, unless and to the extent converted into shares of Common Stock in
accordance with the terms hereof.


                                       13
<PAGE>

      SECTION 7. If this Debenture is mutilated, lost, stolen or destroyed, the
Obligor shall execute and deliver, in exchange and substitution for and upon
cancellation of the mutilated Debenture, or in lieu of or in substitution for a
lost, stolen or destroyed Debenture, a new Debenture for the principal amount of
this Debenture so mutilated, lost, stolen or destroyed but only upon receipt of
evidence of such loss, theft or destruction of such Debenture, and of the
ownership hereof, and indemnity, if requested, all reasonably satisfactory to
the Obligor.

      SECTION 8. No indebtedness of the Obligor is senior to this Debenture in
right of payment, whether with respect to interest, damages or upon liquidation
or dissolution or otherwise. Without the Holder's consent, the Obligor will not
and will not permit any of their subsidiaries to, directly or indirectly, enter
into, create, incur, assume or suffer to exist any indebtedness of any kind, on
or with respect to any of its property or assets now owned or hereafter acquired
or any interest therein or any income or profits there from that is senior in
any respect to the obligations of the Obligor under this Debenture.

      SECTION 9. This Debenture shall be governed by and construed in accordance
with the laws of the State of New Jersey, without giving effect to conflicts of
laws thereof. Each of the parties consents to the jurisdiction of the Superior
Courts of the State of New Jersey sitting in Hudson County, New Jersey and the
U.S. District Court for the District of New Jersey sitting in Newark, New Jersey
in connection with any dispute arising under this Debenture and hereby waives,
to the maximum extent permitted by law, any objection, including any objection
based on forum non conveniens to the bringing of any such proceeding in such
jurisdictions.

      SECTION 10. If the Obligor fails to strictly comply with the terms of this
Debenture, then the Obligor shall reimburse the Holder promptly for all fees,
costs and expenses, including, without limitation, attorneys' fees and expenses
incurred by the Holder in any action in connection with this Debenture,
including, without limitation, those incurred: (i) during any workout, attempted
workout, and/or in connection with the rendering of legal advice as to the
Holder's rights, remedies and obligations, (ii) collecting any sums which become
due to the Holder, (iii) defending or prosecuting any proceeding or any
counterclaim to any proceeding or appeal; or (iv) the protection, preservation
or enforcement of any rights or remedies of the Holder.

      SECTION 11. Any waiver by the Holder of a breach of any provision of this
Debenture shall not operate as or be construed to be a waiver of any other
breach of such provision or of any breach of any other provision of this
Debenture. The failure of the Holder to insist upon strict adherence to any term
of this Debenture on one or more occasions shall not be considered a waiver or
deprive that party of the right thereafter to insist upon strict adherence to
that term or any other term of this Debenture. Any waiver must be in writing.

      SECTION 12. If any provision of this Debenture is invalid, illegal or
unenforceable, the balance of this Debenture shall remain in effect, and if any
provision is inapplicable to any person or circumstance, it shall nevertheless
remain applicable to all other persons and circumstances. If it shall be found
that any interest or other amount deemed interest due hereunder shall violate
applicable laws governing usury, the applicable rate of interest due hereunder
shall automatically be lowered to equal the maximum permitted rate of interest.
The Obligor covenants (to the extent that it may lawfully do so) that it shall
not at any time insist upon, plead, or in any manner whatsoever claim or take
the benefit or advantage of, any stay, extension or usury law or other law which
would prohibit or forgive the Obligor from paying all or any portion of the
principal of or interest on this Debenture as contemplated herein, wherever
enacted, now or at any time hereafter in force, or which may affect the
covenants or the performance of this indenture, and the Obligor (to the extent
it may lawfully do so) hereby expressly waives all benefits or advantage of any
such law, and covenants that it will not, by resort to any such law, hinder,
delay or impeded the execution of any power herein granted to the Holder, but
will suffer and permit the execution of every such as though no such law has
been enacted.


                                       14
<PAGE>

      SECTION 13. Whenever any payment or other obligation hereunder shall be
due on a day other than a Business Day, such payment shall be made on the next
succeeding Business Day.

      SECTION 14. THE PARTIES HEREBY KNOWINGLY, VOLUNTARILY AND INTENTIONALLY
WAIVE THE RIGHT ANY OF THEM MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY
LITIGATION BASED HEREON OR ARISING OUT OF, UNDER OR IN CONNECTION WITH THIS
AGREEMENT OR ANY TRANSACTION DOCUMENT OR ANY COURSE OF CONDUCT, COURSE OF
DEALING, STATEMENTS (WHETHER VERBAL OR WRITTEN) OR ACTIONS OF ANY PARTY. THIS
PROVISION IS A MATERIAL INDUCEMENT FOR THE PARTIES' ACCEPTANCE OF THIS
AGREEMENT.

                   [REMAINDER OF PAGE INTENTIONLLY LEFT BLANK]


                                       15
<PAGE>

      IN WITNESS WHEREOF, the Obligor has caused this Secured Convertible
Debenture to be duly executed by a duly authorized officer as of the date set
forth above.

                                               GULF COAST OIL & GAS, INC.


                                               By: /s/ Rahim Rayani
                                                   ----------------------
                                               Name: Rahim Rayani
                                               Title: President & CEO


                                       16
<PAGE>

                                   EXHIBIT "A"

                              NOTICE OF CONVERSION

        (TO BE EXECUTED BY THE HOLDER IN ORDER TO CONVERT THE DEBENTURE)

TO:

      Reference is made to the Securities Purchase Agreement (the "Securities
Purchase Agreement") between Gulf Coast Oil & Gas, Inc., (the "Company"), and
the Buyers set forth on Schedule I attached thereto dated February 1, 2006. In
accordance with and pursuant to the Securities Purchase Agreement, the
undersigned hereby irrevocably elects to convert convertible debentures into
shares of common stock, par value $0.001 per share (the "Common Stock"), of the
Company for the amount indicated below as of the date specified below.

Conversion Date:                                   ____________________________

Amount to be converted:                           $____________________________

Conversion Price:                                 $____________________________

Shares of Common Stock Issuable:                   ____________________________

Amount of Debenture unconverted:                  $____________________________

Amount of Interest Converted:                     $____________________________

Conversion Price of Interest:                     $____________________________

Shares of Common Stock Issuable:                   ____________________________

Amount of Liquidated Damages:                     $____________________________

Conversion Price of Liquidated Damages:           $____________________________

Shares of Common Stock Issuable:                   ____________________________

Total Number of shares of Common Stock
to be issued:                                      ____________________________
<PAGE>

Please issue the shares of Common Stock in the following name and to the
following address:

Issue to:                                          ____________________________

Authorized Signature:                              ____________________________

Name:                                              ____________________________

Title:                                             ____________________________

Phone #:                                           ____________________________

Broker DTC Participant Code:                       ____________________________

Account Number*:                                   ____________________________



     * NOTE THAT RECEIVING BROKER MUST INITIATE TRANSACTION ON DWAC SYSTEM.