Document:

exv10w43

Exhibit 10.43

REVOLVING CREDIT NOTE

Prime Referenced Rate

	 	 	 	 	 
	AMOUNT

	 	NOTE DATE
	 	MATURITY DATE
	 
	 	 	 	 
	$14,000,000.00

	 	JULY 13, 2009
	 	AUGUST 1, 2011

On or before the Maturity Date set forth above, FOR VALUE RECEIVED, the undersigned promise(s) to
pay to the order of COMERICA BANK (herein called “Bank”), at any office of the Bank in the State of
Michigan, the principal sum of FOURTEEN DOLLARS ($14,000,000.00), or so much of said sum as has
been advanced and is then outstanding under this Note, together with interest thereon at the Prime
Referenced Rate plus the Applicable Margin.

This Note is a note under which advances, repayments and re-advances may be made from time to time,
subject to the terms and conditions of this Note and the Credit Agreement. AT NO TIME SHALL THE
BANK BE UNDER ANY OBLIGATION TO MAKE ANY ADVANCES TO THE UNDERSIGNED PURSUANT TO THIS NOTE IF A
DEFAULT OR EVENT WITH WHICH THE GIVING OF NOTICE OR PASSAGE OF TIME OR BOTH WOULD CONSTITUTE A
DEFAULT SHALL HAVE OCCURRED AND BE COMTINUING.

Accrued and unpaid interest on the unpaid principal balance outstanding hereunder shall be payable
monthly, in arrears, on the first Business Day of each month, until maturity (whether as stated
herein, by acceleration, or otherwise). Interest accruing hereunder shall be computed on the basis
of a year of 360 days, and shall be assessed for the actual number of days elapsed, and in such
computation, effect shall be given to any change in the applicable interest rate as a result of any
change in the Prime Referenced Rate on the date of each such change.

From and after the occurrence of any Default hereunder, and so long as any such Default remains
unremedied or uncured thereafter, the Indebtedness outstanding under this Note shall bear interest
at a per annum rate of three percent (3%) above the otherwise applicable interest rate hereunder,
which interest shall be payable upon demand. In addition to the foregoing, a late payment charge
equal to five percent (5%) of each late payment hereunder may be charged on any payment not
received by Bank within ten (10) calendar days after the payment due date therefor, but acceptance
of payment of any such charge shall not constitute a waiver of any Default hereunder.

In no event shall the interest payable under this Note at any time exceed the maximum rate
permitted by law.

The amount and date of each advance hereunder, its applicable interest rate and the amount and date
of any repayment shall be noted on Bank’s records, which records shall be conclusive evidence
thereof, absent manifest error; provided, however, any failure by Bank to make any such notation,
or any error in any such notation, shall not relieve the undersigned of its/their obligations to
repay Bank all amounts payable by the undersigned to Bank under or pursuant to this Note, when due
in accordance with the terms hereof.

In the event that any payment under this Note becomes due and payable on any day which is not a
Business Day, the due date thereof shall be extended to the next succeeding Business Day, and, to
the extent applicable, interest shall continue to accrue and be payable thereon during such
extension at the rates set forth in this Note.

All payments to be made by the undersigned to Bank under or pursuant to this Note shall be in
immediately available United States funds, without setoff or counterclaim, and in the event that
any payments submitted hereunder are in funds not available until collected, said payments shall
continue to bear interest until collected.

The undersigned may prepay all or part of the outstanding balance of any Indebtedness hereunder at
any time without premium or penalty. Any prepayment hereunder shall also be accompanied by the
payment of all accrued and unpaid interest on the amount so prepaid.

If the adoption after the date hereof, or any change after the date hereof in, any applicable law,
rule or regulation (whether domestic or foreign) of any governmental authority, central bank or
comparable agency charged with the interpretation or administration thereof, or compliance by
Bank with any request or directive (whether or not having the force of law) made by any such
authority, central bank or comparable agency after the date hereof: (a) shall subject Bank to any
tax, duty or other charge with respect to this Note or any Indebtedness hereunder, or shall change
the basis of taxation of payments

 

 

to Bank of the principal of or interest under this Note or any other amounts due under this Note in
respect thereof (except for changes in the rate of tax on the overall net income of Bank imposed by
the jurisdiction in which Bank’s principal executive office is located); or (b) shall impose,
modify or deem applicable any reserve (including, without limitation, any imposed by the Board of
Governors of the Federal Reserve System), special deposit or similar requirement against assets of,
deposits with or for the account of, or credit extended by Bank, or shall impose on Bank or the
foreign exchange and interbank markets any other condition affecting this Note or the Indebtedness
hereunder; and the result of any of the foregoing is to increase the cost to Bank of maintaining
any part of the Indebtedness hereunder or to reduce the amount of any sum received or receivable by
Bank under this Note by an amount deemed by the Bank to be material, then the undersigned shall pay
to Bank, within fifteen (15) days of the undersigned’s receipt of written notice from Bank
demanding such compensation, such additional amount or amounts as will compensate Bank for such
increased cost or reduction. A certificate of Bank, prepared in good faith and in reasonable detail
by Bank and submitted by Bank to the undersigned, setting forth the basis for determining such
additional amount or amounts necessary to compensate Bank shall be conclusive and binding for all
purposes, absent manifest error.

In the event that any applicable law, treaty, rule or regulation (whether domestic or foreign) now
or hereafter in effect and whether or not presently applicable to Bank, or any interpretation or
administration thereof by any governmental authority charged with the interpretation or
administration thereof, or compliance by Bank with any guideline, request or directive of any such
authority (whether or not having the force of law), including any risk-based capital guidelines,
affects or would affect the amount of capital required or expected to be maintained by Bank (or any
corporation controlling Bank), and Bank determines that the amount of such capital is increased by
or based upon the existence of any obligations of Bank hereunder or the maintaining of any
Indebtedness hereunder, and such increase has the effect of reducing the rate of return on Bank’s
(or such controlling corporation’s) capital as a consequence of such obligations or the maintaining
of such Indebtedness hereunder to a level below that which Bank (or such controlling corporation)
could have achieved but for such circumstances (taking into consideration its policies with respect
to capital adequacy), then the undersigned shall pay to Bank, within fifteen (15) days of the
undersigned’s receipt of written notice from Bank demanding such compensation, additional amounts
as are sufficient to compensate Bank (or such controlling corporation) for any increase in the
amount of capital and reduced rate of return which Bank reasonably determines to be allocable to
the existence of any obligations of the Bank hereunder or to maintaining any Indebtedness
hereunder. A certificate of Bank as to the amount of such compensation, prepared in good faith and
in reasonable detail by the Bank and submitted by Bank to the undersigned, shall be conclusive and
binding for all purposes absent manifest error.

This Note and any other indebtedness and liabilities of any kind of the undersigned (or any of
them) to the Bank, and any and all modifications, renewals or extensions of it, whether joint or
several, contingent or absolute, now existing or later arising, and however evidenced and whether
incurred voluntarily or involuntarily, known or unknown, or originally payable to the Bank or to a
third party and subsequently acquired by Bank including, without limitation, any late charges; loan
fees or charges; overdraft indebtedness; costs incurred by Bank in establishing, determining,
continuing or defending the validity or priority of any security interest, pledge or other lien or
in pursuing any of its rights or remedies under any loan document (or otherwise) or in connection
with any proceeding involving the Bank as a result of any financial accommodation to the
undersigned (or any of them); and reasonable costs and expenses of attorneys and paralegals,
whether inside or outside counsel is used, and whether any suit or other action is instituted, and
to court costs if suit or action is instituted, and whether any such fees, costs or expenses are
incurred at the trial court level or on appeal, in bankruptcy, in administrative proceedings, in
probate proceedings or otherwise (collectively “Indebtedness”) are secured by and the Bank is
granted a security interest in and lien upon all items deposited in any account of any of the
undersigned with the Bank and by all proceeds of these items (cash or otherwise), all account
balances of any of the undersigned from time to time with the Bank, by all property of any of the
undersigned from time to time in the possession of the Bank and by any other collateral, rights and
properties described in each and every deed of trust, mortgage, security agreement, pledge,
assignment and other security or collateral agreement which has been, or will at any time(s) later
be, executed by any (or all) of the undersigned to or for the benefit of the Bank (collectively
“Collateral”).

Upon the occurrence and at any time during the continuance or existence of any Default Bank may, at
its option and without prior notice to the undersigned (or any of them), declare any or all of the
Indebtedness to be immediately due and payable (notwithstanding any provisions contained in the
evidence of it to the contrary), sell or liquidate all or any portion of the Collateral, set off
against the Indebtedness any amounts owing by the Bank to the undersigned (or any of them), charge
interest at the default rate provided in the document evidencing the relevant Indebtedness and
exercise any one or more of the rights and remedies granted to the Bank by any agreement with the
undersigned (or any of them) or given to it under applicable law.

2

 

The undersigned authorize(s) the Bank to charge any account(s) of the undersigned (or any of them)
with the Bank for any and all sums due hereunder when due; provided, however, that such
authorization shall not affect any of the undersigned’s obligation to pay to the Bank all amounts
when due, whether or not any such account balances that are maintained by the undersigned with the
Bank are insufficient to pay to the Bank any amounts when due, and to the extent that are
insufficient to pay to the Bank all such amounts, the undersigned shall remain liable for any
deficiencies until paid in full.

If this Note is signed by two or more parties (whether by all as makers or by one or more as an
accommodation party or otherwise), the obligations and undertakings under this Note shall be that
of all and any two or more jointly and also of each severally. This Note shall bind the
undersigned, and the undersigned’s respective heirs, personal representatives, successors and
assigns.

The undersigned waive(s) presentment, demand, protest, notice of dishonor, notice of demand or
intent to demand, notice of acceleration or intent to accelerate, and all other notices, and
agree(s) that no extension or indulgence to the undersigned (or any of them) or release,
substitution or nonenforcement of any security, or release or substitution of any of the
undersigned, any guarantor or any other party, whether with or without notice, shall affect the
obligations of any of the undersigned. The undersigned waive(s) all defenses or right to discharge
available under Section 3-605 of the Michigan Uniform Commercial Code and waive(s) all other
suretyship defenses or right to discharge. The undersigned agree(s) that the Bank has the right to
sell, assign, or grant participations or any interest in, any or all of the Indebtedness, and that,
in connection with this right, but without limiting its ability to make other disclosures to the
full extent allowable, the Bank may disclose all documents and information which the Bank now or
later has relating to the undersigned or the Indebtedness. The undersigned agree(s) that the Bank
may provide information relating to this Note or relating to the undersigned to the Bank’s parent,
affiliates, subsidiaries and service providers.

The undersigned agree(s) to reimburse Bank, or any other holder or owner of this Note, for any and
all costs and expenses (including, without limit, court costs, legal expenses and reasonable
attorneys’ fees, whether inside or outside counsel is used, whether or not suit is instituted, and,
if suit is instituted, whether at the trial court level, appellate level, in a bankruptcy, probate
or administrative proceeding or otherwise) incurred in collecting or attempting to collect this
Note or the Indebtedness or incurred in any other matter or proceeding relating to this Note or the
Indebtedness.

The undersigned acknowledge(s) and agree(s) that there are no contrary agreements, oral or written,
establishing a term of this Note and 

agree(s) that the terms and conditions of this Note may not be
amended, waived or modified except in a writing signed by an officer of the Bank
expressly stating that the writing constitutes an amendment, waiver or modification of the terms of
this Note. As used in this Note, the word “undersigned” means, individually and collectively, each
maker, accommodation party, endorser and other party signing this Note in a similar capacity. If
any provision of this Note is unenforceable in whole or part for any reason, the remaining
provisions shall continue to be effective. THIS NOTE SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE INTERNAL LAWS OF THE STATE OF MICHIGAN, WITHOUT REGARD TO CONFLICT OF LAWS
PRINCIPLES.

For the purposes of this Note, the following terms have the following meanings:

“Applicable Margin” means two and three quarters percent (2.75%) per annum.

“Business Day” means any day, other than a Saturday, Sunday or any other day designated as a
holiday under Federal or applicable State statute or regulation, on which Bank is open for all or
substantially all of its domestic and international business (including dealings in foreign
exchange) in Detroit, Michigan, and, in respect of notices and determinations relating to the Daily
Adjusting LIBOR Rate, also a day on which dealings in dollar deposits are also carried on in the
London interbank market and on which banks are open for business in London, England.

“Credit
Agreement” means that certain Amended and Restated Credit
Agreement dated July 13, 2009
among the undersigned and Bank, as may be amended, restated, supplemented or replaced from time to
time.

“Daily Adjusting LIBOR Rate” means, for any day, a per annum interest rate which is equal to the
quotient of the following:

	(a)	 	for any day, the per annum rate of interest determined on the basis of the rate for deposits in
United States Dollars for a period equal to one (1) month appearing on Page BBAM of the Bloomberg
Financial Markets Information Service as of 11:00 a.m. (Detroit, Michigan time) (or as soon
thereafter as practical) on such day, or if such day is not a Business Day, on the immediately
preceding Business Day. In the event that such rate does

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	 	 	not appear on Page BBAM of the Bloomberg Financial Markets Information Service (or
otherwise on such Service) on any day, the “Daily Adjusting LIBOR Rate” for such day shall
be determined by reference to such other publicly available service for displaying
eurodollar rates as may be reasonably selected by Bank, or, in the absence of such other
service, the “Daily Adjusting LIBOR Rate” for such day shall, instead, be determined based
upon the average of the rates at which Bank is offered dollar deposits at or about 11:00
a.m. (Detroit, Michigan time) (or as soon thereafter as practical), on such day, or if such
day is not a Business Day, on the immediately preceding Business Day, in the interbank
eurodollar market in an amount comparable to the principal amount of the Indebtedness
hereunder and for a period of one (1) month;
	 
	 	 	divided by
	 
	(b)	 	1.00 minus the maximum rate (expressed as a decimal) on such day at which Bank is required to
maintain reserves on “Euro-currency Liabilities” as defined in and pursuant to Regulation D of the
Board of Governors of the Federal Reserve System or, if such regulation or definition is modified,
and as long as Bank is required to maintain reserves against a category of liabilities which
includes eurodollar deposits or includes a category of assets which includes eurodollar loans, the
rate at which such reserves are required to be maintained on such category.

“Default” means an “Event of Default” as defined in the Credit Agreement.

“Prime Rate” means the per annum interest rate established by Bank as its prime rate for its
borrowers, as such rate may vary from time to time, which rate is not necessarily the lowest rate
on loans made by Bank at any such time.

“Prime Referenced Rate” means, for any day, a per annum interest rate which is equal to the Prime
Rate in effect on such day, but in no event and at no time shall the Prime Referenced Rate be less
than the sum of the Daily Adjusting LIBOR Rate for such day plus two and one-half percent (2.50%)
per annum. If, at any time, Bank determines that it is unable to determine or ascertain the Daily
Adjusting LIBOR Rate for any day, the Prime Referenced Rate for each such day shall be the Prime
Rate in effect at such time, but not less than two and one-half percent (2.50%) per annum.

No delay or failure of Bank in exercising any right, power or privilege hereunder shall affect such
right, power or privilege, nor shall any single or partial exercise thereof preclude any further
exercise thereof, or the exercise of any other power, right or privilege. The rights of Bank under
this Note are cumulative and not exclusive of any right or remedies which Bank would otherwise
have, whether by other instruments or by law.

THE MAXIMUM INTEREST RATE SHALL NOT EXCEED 25% PER ANNUM OR THE HIGHEST APPLICABLE USURY CEILING,
WHICHEVER IS LESS.

THE UNDERSIGNED AND BANK, BY ACCEPTANCE OF THIS NOTE, ACKNOWLEDGE THAT THE RIGHT TO TRIAL BY JURY
IS A CONSTITUTIONAL ONE, BUT THAT IT MAY BE WAIVED UNDER CERTAIN CIRCUMSTANCES. TO THE EXTENT
PERMITTED BY LAW, EACH PARTY, AFTER CONSULTING (OR HAVING HAD THE OPPORTUNITY TO CONSULT) WITH
COUNSEL OF THEIR CHOICE, KNOWINGLY AND VOLUNTARILY, AND FOR THEIR MUTUAL BENEFIT, WAIVES ANY RIGHT
TO TRIAL BY JURY IN THE EVENT OF LITIGATION REGARDING THE PERFORMANCE OR ENFORCEMENT OF, OR IN ANY
WAY RELATED TO, THIS NOTE OR THE INDEBTEDNESS.

[continued on next page]

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This Note amends and restates and reduces that certain Revolving Credit Note dated as of August 30,
2005, made in the principal amount of $19,000,000 by the undersigned payable to Bank (the “Prior
Note”); provided, however, (i) the execution and delivery by the undersigned of this Note shall
not, in any manner or circumstance, be deemed to be a payment of, a novation of or to have
terminated, extinguished or discharged any of the undersigned’s indebtedness evidenced by the Prior
Note, all of which indebtedness shall continue under and shall hereinafter be evidenced and
governed by this Note, and (ii) all collateral and guaranties securing or supporting the Prior Note
shall continue to secure and support this Note.

	 	 	 	 	 	 	 
	ARCADIA SERVICES, INC.	 	GRAYROSE, INC.
	 
	 	 	 	 	 	 
	By:

	 	/s/ Matthew R. Middendorf 	 	By:	 	/s/ Matthew R. Middendorf
	 

	 	 
	 	 	 	 
	 

	 	Signature of MATTHEW R. MIDDENDORF
	 	 	 	Signature of MATTHEW R. MIDDENDORF
	Its:

	 	Treasurer
	 	Its:	 	Treasurer
	 

	 	 
	 	 	 	 
	 
	 	 	 	 	 	 
	ARCADIA HEALTH SERVICES OF MICHIGAN, INC.	 	ARCADIA HEALTH SERVICES, INC.
	 
	 	 	 	 	 	 
	By:

	 	/s/ Matthew R. Middendorf	 	By:	 	/s/ Matthew R. Middendorf
	 

	 	 
	 	 	 	 
	 

	 	Signature of MATTHEW R. MIDDENDORF
	 	 	 	Signature of MATTHEW R. MIDDENDORF
	Its:

	 	Treasurer
	 	Its:
	 	Treasurer
	 

	 	 
	 	 	 	 
	 
	 	 	 	 	 	 
	ARCADIA EMPLOYEE SERVICES INC.	 	 	 	 
	 
	 	 	 	 	 	 
	By:
	 	/s/ Matthew R. Middendorf	 	 	 	 
	 

	 	 

Signature of MATTHEW R. MIDDENDORF
	 	 	 	 
	Its:

	 	Treasurer	 	 	 	 
	 

	 	 	 	 	 	 

For Bank Use Only

	 	 	 	 	 	 	 	 	 	 	 
	LOAN OFFICER INITIALS

	 	LOAN GROUP NAME
	 	BASE RATE INDEX
	 	OBLIGOR NAME	 	 	 	 
	JRM

	 	MMB-Florida
	 	 20129
	 	Arcadia Services, Inc. et al	 	 	 	 
	LOAN OFFICER ID. NO.

	 	LOAN GROUP NO.
	 	OBLIGOR NO.
	 	NOTE NO.
	 	AMOUNT

	 

	 	 	 	 	 	 	 	$14,000,000.00		 

5EX-10.1

Exhibit 10.1

     THE SECURITIES REPRESENTED HEREBY MAY NOT BE TRANSFERRED UNLESS (I) SUCH SECURITIES HAVE BEEN
REGISTERED FOR SALE PURSUANT TO THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR
(II) THE COMPANY HAS RECEIVED AN OPINION OF COUNSEL REASONABLY SATISFACTORY TO IT THAT SUCH
TRANSFER MAY LAWFULLY BE MADE WITHOUT REGISTRATION UNDER THE SECURITIES ACT OR QUALIFICATION UNDER
APPLICABLE STATE SECURITIES LAWS.

     SUBJECT TO THE PROVISIONS OF SECTION 10 HEREOF, THIS WARRANT SHALL BE VOID AFTER 5:00 P.M.
EASTERN TIME ON THE FIFTH ANNIVERSARY OF THE CLOSING DATE (THE “EXPIRATION DATE”).

No. 1

MAGELLAN PETROLEUM CORPORATION

WARRANT TO PURCHASE SHARES OF

COMMON STOCK, PAR VALUE $0.01 PER SHARE

     For VALUE RECEIVED, Young Energy Prize S.A., a Luxembourg corporation (“Warrantholder”), is
entitled to purchase, subject to the provisions of this Warrant, from Magellan Petroleum
Corporation, a Delaware corporation (the “Company”), from and after the Closing Date (the “Initial
Exercise Date”) and at any time not later than 5:00 P.M., Eastern time, on the Expiration Date (as
defined above), at an exercise price per share equal to $1.20 (the exercise price in effect being
herein called the “Warrant Price”), 4,347,826 shares (“Warrant Shares”) of the Company’s Common
Stock, par value $0.01 per share (“Common Stock”). The number of Warrant Shares purchasable upon
exercise of this Warrant and the Warrant Price shall be subject to adjustment from time to time as
described herein. Terms not otherwise defined herein have the respective meanings ascribed to them
in the Securities Purchase

 

 

Agreement,
dated February 9, 2009 (the “Purchase Agreement”), between the Company and the initial holder of
this Warrant, as amended from time to time.

     Section 1. Registration. The Company shall maintain books for the transfer and
registration of the Warrant. Upon the initial issuance of this Warrant, the Company shall issue
and register the Warrant in the name of the Warrantholder or its designee.

     Section 2. Transfers. As provided herein, this Warrant may be transferred only
pursuant to a registration statement filed under the Securities Act of 1933, as amended (the
“Securities Act”), or an exemption from such registration. Subject to such restrictions, the
Company shall transfer this Warrant from time to time upon the books to be maintained by the
Company for that purpose, upon surrender hereof for transfer, properly endorsed or accompanied by
appropriate instructions for transfer and such other documents as may be reasonably required by the
Company, including, if required by the Company, an opinion of its counsel to the effect that such
transfer is exempt from the registration requirements of the Securities Act, to establish that such
transfer is being made in accordance with the terms hereof, and a new Warrant shall be issued to
the transferee and the surrendered Warrant shall be canceled by the Company.

     Section 3. Exercise of Warrant. Subject to the provisions hereof, the Warrantholder
may exercise this Warrant, in whole or in part, at any time and from time to time prior to its
expiration upon surrender of the Warrant, together with delivery of a duly executed Warrant
exercise form, in the form attached hereto as Appendix A (the “Exercise Agreement”) and
payment by cash, certified check, or wire transfer of funds of the aggregate Warrant Price for that
number of Warrant Shares then being purchased, to the Company during normal business hours on any
business day at the Company’s principal executive offices (or such other office or agency of the
Company as it may designate by notice to the Warrantholder). The Warrant Shares so purchased shall
be deemed to be issued to the Warrantholder or the Warrantholder’s designee, as the record owner of
such shares, as of the close of business on the date on which this Warrant shall have been
surrendered for exercise (or the date evidence of loss, theft, or destruction thereof and security
or indemnity satisfactory to the Company has been provided to the Company in connection with such
exercise), the Warrant Price shall have been paid and the completed Exercise Agreement shall have
been delivered. Certificates for the Warrant Shares so purchased shall be delivered to the
Warrantholder within a reasonable time, not exceeding three (3)
business days, after this Warrant shall have been so exercised. The certificates so delivered

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shall be in such denominations as may be requested by the Warrantholder and shall be registered in
the name of the Warrantholder or such other name as shall be designated by the Warrantholder, as
specified in the Exercise Agreement. If this Warrant shall have been exercised only in part, then,
unless this Warrant has expired, the Company shall, at its expense, at the time of delivery of such
certificates, deliver to the Warrantholder a new Warrant representing the right to purchase the
number of shares with respect to which this Warrant shall not then have been exercised. As used
herein, “business day” means a day, other than a Saturday or Sunday, on which banks in New York
City are open for the general transaction of business. Each exercise hereof shall constitute the
re-affirmation by the Warrantholder that the representations and warranties contained in Section
3.2 of the Purchase Agreement are true and correct in all material respects with respect to the
Warrantholder as of the time of such exercise.

     Section 4. Compliance with the Securities Act of 1933. Except as provided in the
Purchase Agreement, the Company may cause the legend set forth on the first page of this Warrant to
be set forth on each Warrant, and a similar legend on any security issued or issuable upon exercise
of this Warrant, unless counsel for the Company is of the opinion as to any such security that such
legend is unnecessary.

     Section 5. Payment of Taxes. The Company will pay any documentary stamp taxes
attributable to the initial issuance of Warrant Shares issuable upon the exercise of the Warrant;
provided, however, that the Company shall not be required to pay any tax or taxes which may be
payable in respect of any transfer involved in the issuance or delivery of any certificates for
Warrant Shares in a name other than that of the Warrantholder in respect of which such shares are
issued, and in such case, the Company shall not be required to issue or deliver any certificate for
Warrant Shares or any Warrant until the person requesting the same has paid to the Company the
amount of such tax or has established to the Company’s reasonable satisfaction that such tax has
been paid. The Warrantholder shall be responsible for income taxes due under federal, state, or
other law, if any such tax is due.

     Section 6. Mutilated or Missing Warrants. In case this Warrant shall be mutilated,
lost, stolen, or destroyed, the Company shall issue in exchange and substitution of and upon
surrender and cancellation of the mutilated Warrant, or in lieu of and substitution for the Warrant
lost, stolen, or destroyed, a new Warrant of like tenor and for the purchase of a like number of
Warrant Shares, but only upon receipt of evidence reasonably satisfactory to the Company of

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such
mutilation, loss, theft, or destruction of the Warrant, and with respect to a lost, stolen, or
destroyed Warrant, reasonable indemnity or bond with respect thereto, if requested by the Company.

     Section 7. Reservation of Common Stock. The Company hereby represents and warrants
that there have been reserved, and the Company shall at all applicable times keep reserved until
issued (if necessary) as contemplated by this Section 7, out of the authorized and unissued shares
of Common Stock, sufficient shares to provide for the exercise of the rights of purchase
represented by this Warrant. The Company agrees that all Warrant Shares issued upon due exercise
of the Warrant shall be, at the time of delivery of the certificates for such Warrant Shares, duly
authorized, validly issued, fully paid, and non-assessable shares of Common Stock of the Company.

     Section 8. Adjustments. Subject and pursuant to the provisions of this Section 8, the
Warrant Price and number of Warrant Shares subject to this Warrant shall be subject to adjustment
from time to time as set forth hereinafter.

          (a) If the Company shall, at any time or from time to time while this Warrant is outstanding,
pay a dividend or make a distribution on its Common Stock in shares of Common Stock, subdivide its
outstanding shares of Common Stock into a greater number of shares or combine its outstanding
shares of Common Stock into a smaller number of shares, or issue by reclassification of its
outstanding shares of Common Stock any shares of its capital stock (including any such
reclassification in connection with a consolidation or merger in which the Company is the
continuing corporation), then (i) the Warrant Price in effect immediately prior to the date on
which such change shall become effective shall be adjusted by multiplying such Warrant Price by a
fraction, the numerator of which shall be the number of shares of Common Stock outstanding
immediately prior to such change and the denominator of which shall be the number of shares of
Common Stock outstanding immediately after giving effect to such change, and (ii) the number of
Warrant Shares purchasable upon exercise of this Warrant shall be adjusted by multiplying the
number of Warrant Shares purchasable upon exercise of this Warrant immediately prior to the date on
which such change shall become effective by a fraction, the
numerator of which shall be the Warrant Price in effect immediately prior to the date on which such
change shall become effective and the denominator of which shall be the Warrant Price in effect
immediately after giving effect to such change, calculated in accordance with clause (i)

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above.
Such adjustments shall be made successively whenever any event listed above shall occur.

          (b) If any capital reorganization, reclassification of the capital stock of the Company,
consolidation or merger of the Company with another corporation in which the Company is not the
survivor, or sale, transfer, or other disposition of all or substantially all of the Company’s
assets to another corporation shall be effected, then, as a condition of such reorganization,
reclassification, consolidation, merger, sale, transfer, or other disposition, lawful and adequate
provision shall be made whereby each Warrantholder shall thereafter have the right to purchase and
receive upon the basis and upon the terms and conditions herein specified and in lieu of the
Warrant Shares immediately theretofore issuable upon exercise of the Warrant, such shares of stock,
securities, or assets as would have been issuable or payable with respect to or in exchange for a
number of Warrant Shares equal to the number of Warrant Shares immediately theretofore issuable
upon exercise of the Warrant, had such reorganization, reclassification, consolidation, merger,
sale, transfer, or other disposition not taken place, and in any such case appropriate provision
shall be made with respect to the rights and interests of each Warrantholder to the end that the
provisions hereof (including, without limitation, provision for adjustment of the Warrant Price)
shall thereafter be applicable, as nearly equivalent as may be practicable in relation to any
shares of stock, securities, or assets thereafter deliverable upon the exercise hereof. The
Company shall not effect any such consolidation, merger, sale, transfer, or other disposition
unless prior to or simultaneously with the consummation thereof the successor corporation (if other
than the Company) resulting from such consolidation or merger, or the corporation purchasing or
otherwise acquiring such assets or other appropriate corporation or entity, shall assume the
obligation to deliver to the Warrantholder, at the last address of the Warrantholder appearing on
the books of the Company, such shares of stock, securities, or assets as, in accordance with the
foregoing provisions, the Warrantholder may be entitled to purchase, and the other obligations
under this Warrant. The provisions of this paragraph (b) shall similarly
apply to successive reorganizations, reclassifications, consolidations, mergers, sales, transfers,
or other dispositions.

          (c) In case the Company shall fix a payment date for the making of a distribution to all
holders of Common Stock (including any such distribution made in connection with a consolidation or
merger in which the Company is the continuing corporation) of

-5-

 

evidences of indebtedness or assets
(other than cash dividends or cash distributions payable out of consolidated earnings or earned
surplus or dividends or distributions referred to in Section 8(a)), or subscription rights or
warrants, the Warrant Price to be in effect after such payment date shall be determined by
multiplying the Warrant Price in effect immediately prior to such payment date by a fraction, the
numerator of which shall be the total number of shares of Common Stock outstanding multiplied by
the Market Price (as defined below) per share of Common Stock immediately prior to such payment
date, less the fair market value (as determined by the Company’s Board of Directors in good faith)
of said assets or evidences of indebtedness so distributed, or of such subscription rights or
warrants, and the denominator of which shall be the total number of shares of Common Stock
outstanding multiplied by such Market Price per share of Common Stock immediately prior to such
payment date. “Market Price” shall mean, as of a particular date (the “Valuation Date”), the
following: (a) if the Common Stock is then listed on a national stock exchange, the closing sale
price of one share of Common Stock on such exchange on the last Trading Day prior to the Valuation
Date; (b) if the Common Stock is then quoted on the National Association of Securities Dealers,
Inc. OTC Bulletin Board (the “Bulletin Board”) or such similar quotation system or association, the
closing sale price of one share of Common Stock on the Bulletin Board or such other quotation
system or association on the last Trading Day prior to the Valuation Date or, if no such closing
sale price is available, the average of the high bid and the low asked price quoted thereon on the
last Trading Day prior to the Valuation Date; (c) if the Common Stock is then included in the “pink
sheets,” the closing sale price of one share of Common Stock on the “pink sheets” on the last
Trading Day prior to the Valuation Date or, if no such closing sale price is available, the average
of the high bid and the low ask price quoted on the “pink sheets” as of the end of the last Trading
Day prior to the Valuation Date; or (d) if the Common Stock is not then listed on a national stock
exchange or quoted on the Bulletin Board, the “pink sheets” or such other quotation system or
association, the
fair market value of one share of Common Stock as of the Valuation Date, as determined in good
faith by the Board of Directors of the Company and the Warrantholder. If the Common Stock is not
then listed on a national securities exchange or quoted on the Bulletin Board, the “pink sheets” or
other quotation system or association, the Board of Directors of the Company shall respond
promptly, in writing, to an inquiry by the Warrantholder prior to the exercise hereunder as to the
fair market value of a share of Common

-6-

 

Stock as determined by the Board of Directors of the
Company. In the event that the Board of Directors of the Company and the Warrantholder are unable
to agree upon the fair market value in respect of subpart (d) of this paragraph, the Company and
the Warrantholder shall jointly select an appraiser who is experienced in such matters. The
decision of such appraiser shall be final and conclusive, and the cost of such appraiser shall be
borne equally by the Company and the Warrantholder. Such adjustment shall be made successively
whenever such a payment date is fixed.

          (d) An adjustment to the Warrant Price shall become effective immediately after the payment
date in the case of each dividend or distribution and immediately after the effective date of each
other event which requires an adjustment.

          (e) In the event that, as a result of an adjustment made pursuant to this Section 8, the
Warrantholder shall become entitled to receive any shares of capital stock of the Company other
than shares of Common Stock, the number of such other shares so receivable upon exercise of this
Warrant shall be subject thereafter to adjustment from time to time in a manner and on terms as
nearly equivalent as practicable to the provisions with respect to the Warrant Shares contained in
this Warrant.

          (f) Except as provided in subsection (g) hereof, if and whenever the Company shall issue or
sell, or is, in accordance with any of subsections (f)(l) through (f)(7) hereof, deemed to have
issued or sold, any Additional Shares of Common Stock (as defined below) for no consideration or
for a consideration per share less than 95.8333 percent of the Warrant Price (as the Warrant Price
is adjusted from time to time under this Section 8) (the “Minimum Price”), then and in each such
case (a “Trigger Issuance”), the then-existing Warrant Price shall be reduced as of the close of
business on the effective date of the Trigger Issuance, to a price determined by the formula set
forth below. Such formula is intended to adjust the Warrant Price in a manner which does not
reduce the Warrant Price with respect to the difference between
the Warrant Price prior to such adjustment and 95.8333 percent of such Warrant Price. The formula
is as follows:

	 	 	 	 	 	 	 
	 

	 	Adjusted Warrant Price =
	 	(A x B) + D
	 	+ E
	 

	 	 	 	 

A+C
	 	 

          where

-7-

 

          “A” equals the number of shares of Common Stock outstanding, including
Additional Shares of Common Stock (as defined below) deemed to be issued hereunder,
immediately preceding such Trigger Issuance;

          “B” equals the Minimum Price in effect immediately preceding such Trigger
Issuance;

          “C” equals the number of Additional Shares of Common Stock issued or deemed
issued hereunder as a result of the Trigger Issuance;

          “D” equals the aggregate consideration, if any, received or deemed to be
received by the Company upon such Trigger Issuance; and

          “E” equals 4.1667 percent of the Warrant Price in effect immediately preceding
such Trigger Issuance;

provided, however, that in no event shall the Warrant Price after giving effect to such Trigger
Issuance be greater than the Warrant Price in effect prior to such Trigger Issuance.

     For purposes of this subsection (f), “Additional Shares of Common Stock” shall mean all shares
of Common Stock issued or sold by the Company or deemed to be issued or sold pursuant to this
subsection (f), other than Excluded Issuances (as defined in subsection (g) hereof).

     For purposes of this subsection (f), the following subsections (f)(l) to (f)(7) shall also be
applicable (subject, in each such case, to the provisions of Section 8(g) hereof):

     (f)(1)  Issuance of Rights or Options. In case at any time the Company
shall in any manner grant (directly and not by assumption in a merger or otherwise)
any warrants or other rights to subscribe for or to purchase, or any options for the
purchase of, Common Stock or any stock or security convertible into or exchangeable
for Common Stock (such warrants, rights, or options being called “Options” and such
convertible or exchangeable stock or securities being called “Convertible
Securities”), whether or not such Options or the right to convert or exchange any
such Convertible Securities are immediately exercisable,
and the price per share for which Common Stock is issuable upon the exercise of such
Options or upon the conversion or exchange of such Convertible Securities
(determined by dividing (i) the sum (which sum shall constitute the applicable
consideration) of (x) the total amount, if any, received or receivable by the
Company as consideration for the granting of such Options, plus (y) the aggregate

-8-

 

amount of additional consideration payable to the Company upon the exercise of all
such Options, plus (z), in the case of such Options which relate to Convertible
Securities, the aggregate amount of additional consideration, if any, payable upon
the issuance or sale of such Convertible Securities and upon the conversion or
exchange thereof, by (ii) the total maximum number of shares of Common Stock
issuable upon the exercise of such Options or upon the conversion or exchange of all
such Convertible Securities issuable upon the exercise of such Options) shall be
less than the Minimum Price in effect immediately prior to the time of the granting
of such Options, then the total number of shares of Common Stock issuable upon the
exercise of such Options or upon conversion or exchange of the total amount of such
Convertible Securities issuable upon the exercise of such Options shall be deemed to
have been issued for such price per share as of the date of the granting of such
Options or the issuance of such Convertible Securities and thereafter shall be
deemed to be outstanding for purposes of adjusting the Warrant Price. Except as
otherwise provided in subsection 8(f)(3), no adjustment of the Warrant Price shall
be made upon the actual issuance of such Common Stock or of such Convertible
Securities upon exercise of such Options or upon the actual issuance of such Common
Stock upon conversion or exchange of such Convertible Securities.

     (f)(2) Issuance of Convertible Securities. In case the Company shall
in any manner issue (directly and not by assumption in a merger or otherwise) or
sell any Convertible Securities, whether or not the rights to exchange or convert
any such Convertible Securities are immediately exercisable, and the price per share
for which Common Stock is issuable upon such conversion or exchange (determined by
dividing (i) the sum (which sum shall constitute the applicable
consideration) of (x) the total amount received or receivable by the Company as
consideration for the issuance or sale of such Convertible Securities, plus (y) the
aggregate amount of additional consideration, if any, payable to the Company upon
the conversion or exchange thereof, by (ii) the total number of shares of Common
Stock issuable upon the conversion or exchange of all such Convertible Securities)
shall be less than the Minimum Price in effect immediately prior to the

-9-

 

time of such
issuance or sale, then the total maximum number of shares of Common Stock issuable
upon conversion or exchange of all such Convertible Securities shall be deemed to
have been issued for such price per share as of the date of the issuance or sale of
such Convertible Securities and thereafter shall be deemed to be outstanding for
purposes of adjusting the Warrant Price, provided that (a) except as otherwise
provided in subsection 8(f)(3), no adjustment of the Warrant Price shall be made
upon the actual issuance of such Common Stock upon conversion or exchange of such
Convertible Securities and (b) no further adjustment of the Warrant Price shall be
made by reason of the issuance or sale of Convertible Securities upon exercise of
any Options to purchase any such Convertible Securities for which adjustments of the
Warrant Price have been made pursuant to the other provisions of subsection 8(f).

     (f)(3) Change in Option Price or Conversion Rate. Upon the happening
of any of the following events, namely, if the purchase price provided for in any
Option referred to in subsection 8(f)(l) hereof, the additional consideration, if
any, payable upon the conversion or exchange of any Convertible Securities referred
to in subsections 8(f)(l) or 8(f)(2), or the rate at which Convertible Securities
referred to in subsections 8(f)(l) or 8(f)(2) are convertible into or exchangeable
for Common Stock shall change at any time (including, but not limited to, changes
under or by reason of provisions designed to protect against dilution), the Warrant
Price in effect at the time of such event shall forthwith be readjusted to the
Warrant Price which would have been in effect at such time had such Options or
Convertible Securities still outstanding provided for such changed purchase price,
additional consideration, or conversion rate, as the case may be, at the time
initially granted, issued, or sold. On the termination of any Option for which any
adjustment was made pursuant to this subsection 8(f) or any right to convert or
exchange Convertible Securities for which any adjustment was made pursuant to this
subsection 8(f) (including without limitation upon the redemption or purchase for
consideration of such Convertible Securities by the Company), the Warrant Price then
in effect hereunder shall forthwith be changed to the Warrant Price which would have
been in effect at the time of such termination had such Option

-10-

 

or Convertible
Securities, to the extent outstanding immediately prior to such termination, never
been issued.

     (f)(4) Stock Dividends. Subject to the provisions of this Section
8(f), in case the Company shall declare a dividend or make any other distribution
upon any stock of the Company (other than the Common Stock) payable in Common Stock,
Options, or Convertible Securities, then any Common Stock, Options, or Convertible
Securities, as the case may be, issuable in payment of such dividend or distribution
shall be deemed to have been issued or sold without consideration; provided, that if
any adjustment is made to the Warrant Price as a result of a declaration of a
dividend and such dividend is rescinded, the Warrant Price shall be appropriately
readjusted to the Warrant Price in effect had such dividend not been declared.

     (f)(5) Consideration for Stock. In case any shares of Common Stock,
Options, or Convertible Securities shall be issued or sold for cash, the
consideration received therefor shall be deemed to be the gross amount received by
the Company therefor. In case any shares of Common Stock, Options, or Convertible
Securities shall be issued or sold for a consideration other than cash, the amount
of the consideration other than cash received by the Company shall be deemed to be
the fair value of such consideration as determined in good faith by the Board of
Directors of the Company. In case any Options shall be issued in connection with
the issuance and sale of other securities of the Company, together comprising one
integral transaction in which no specific consideration is allocated to such Options
by the parties thereto, such Options shall be deemed to have been
issued for such consideration as determined in good faith by the Board of Directors
of the Company. If Common Stock, Options, or Convertible Securities shall be issued
or sold by the Company and, in connection therewith, other Options or Convertible
Securities (the “Additional Rights”) are issued, then the consideration received or
deemed to be received by the Company shall be reduced by the fair market value of
the Additional Rights (as determined using the Black-Scholes option pricing model or
another method mutually agreed to by the Company and the Warrantholder). The Board
of Directors of the Company shall

-11-

 

respond promptly, in writing, to an inquiry by the
Warrantholder as to the fair market value of the Additional Rights. In the event
that the Board of Directors of the Company and the Warrantholder are unable to agree
upon the fair market value of the Additional Rights, the Company and the
Warrantholder shall jointly select an appraiser who is experienced in such matters.
The decision of such appraiser shall be final and conclusive, and the cost of such
appraiser shall be borne evenly by the Company and the Warrantholder.

     (f)(6) Record Date. In case the Company shall take a record of the
holders of its Common Stock for the purpose of entitling them (i) to receive a
dividend or other distribution payable in Common Stock, Options, or Convertible
Securities, or (ii) to subscribe for or purchase Common Stock, Options, or
Convertible Securities, then such record date shall be deemed to be the date of the
issuance or sale of the shares of Common Stock deemed to have been issued or sold
upon the declaration of such dividend or the making of such other distribution or
the date of the granting of such right of subscription or purchase, as the case may
be.

     (f)(7) Treasury Shares. The number of shares of Common Stock
outstanding at any given time shall not include shares owned or held by or for the
account of the Company or any of its wholly-owned subsidiaries, and the disposition
of any such shares (other than the cancellation or retirement thereof) shall be
considered an issuance or sale of Common Stock for the purpose of this subsection
(f).

          (g) Anything herein to the contrary notwithstanding, the Company shall not be required to make
any adjustment of the Warrant Price in the case of the issuance of (A) capital stock, Options, or
Convertible Securities issued to directors, officers, employees, or consultants of the Company in
connection with their service as directors or officers of the Company, their employment by the
Company, or their retention as consultants by the Company pursuant to an equity compensation
program approved by the Board of Directors of the Company or the compensation committee of the
Board of Directors of the Company, (B) shares of Common Stock issued upon the conversion or
exercise of Options or Convertible Securities issued prior to the date hereof, provided such
securities are not amended after the date hereof to increase the number of shares of Common Stock
issuable thereunder or to lower the exercise or

-12-

 

conversion price thereof, (C) securities issued
pursuant to the Purchase Agreement and securities issued upon the exercise or conversion of those
securities, and (D) shares of Common Stock issued or issuable by reason of a dividend, stock split,
or other distribution on shares of Common Stock (but only to the extent that such a dividend,
split, or distribution results in an adjustment in the Warrant Price pursuant to the other
provisions of this Warrant) (collectively, “Excluded Issuances”).

          (h) Upon any adjustment to the Warrant Price pursuant to Section 8(f) above, the number of
Warrant Shares purchasable hereunder shall be adjusted by multiplying such number by a fraction,
the numerator of which shall be the Warrant Price in effect immediately prior to such adjustment
and the denominator of which shall be the Warrant Price in effect immediately thereafter.

          (i) To the extent permitted by applicable law and the listing requirements of any stock market
or exchange on which the Common Stock is then listed, the Company from time to time may decrease
the Warrant Price by any amount for any period of time if the period is at least twenty (20) days,
the decrease is irrevocable during the period, and the Board shall have made a determination that
such decrease would be in the best interests of the Company, which determination shall be
conclusive. Whenever the Warrant Price is decreased pursuant to the preceding sentence, the
Company shall provide written notice thereof to the Warrantholder at least five (5) days prior to
the date the decreased Warrant Price takes effect, and such notice shall state the decreased
Warrant Price and the period during which it will be in effect.

     Section 9. Fractional Interest. The Company shall not be required to issue fractions
of Warrant Shares upon the exercise of this Warrant. If any fractional share of Common Stock
would, except for the provisions of the first sentence of this Section 9, be deliverable upon such
exercise, the Company, in lieu of delivering such fractional share, shall pay to the exercising
Warrantholder an amount in cash equal to the Market Price of such fractional share of Common Stock
on the date of exercise.

     Section 10. Extension of Expiration Date. If the Company fails to cause any
Registration Statement covering Registrable Securities (unless otherwise defined herein,
capitalized terms are as defined in the Registration Rights Agreement relating to the Warrant
Shares (the “Registration Rights Agreement”)) to be declared effective prior to the applicable
dates set forth therein, or if the effectiveness of a Registration Statement has been delayed or a

-13-

 

Prospectus has been unavailable, and such delay or unavailability (whether alone, or in combination
with any other period of delay or unavailability) continues for more than 60 days in any 12 month
period, or for more than a total of 90 days, then the Expiration Date of this Warrant shall be
extended one day for each day beyond the 60-day or 90-day limits, as the case may be, that such
delay or unavailability continues.

     Section 11. Benefits. Nothing in this Warrant shall be construed to give any person,
firm, or corporation (other than the Company and the Warrantholder) any legal or equitable right,
remedy, or claim, it being agreed that this Warrant shall be for the sole and exclusive benefit of
the Company and the Warrantholder.

     Section 12. Notices to Warrantholder. Upon the happening of any event requiring an
adjustment of the Warrant Price, the Company shall promptly give written notice thereof to the
Warrantholder at the address appearing in the records of the Company, stating the adjusted Warrant
Price and the adjusted number of Warrant Shares resulting from such event and setting forth in
reasonable detail the method of calculation and the facts upon which such calculation is based.
Failure to give such notice to the Warrantholder or any defect therein shall not affect the
legality or validity of the subject adjustment.

     Section 13. Identity of Transfer Agent. The Transfer Agent for the Common Stock is
American Stock Transfer & Trust Company, LLC. Upon the appointment of any subsequent transfer
agent for the Common Stock or other shares of the Company’s capital stock issuable
upon the exercise of the rights of purchase represented by the Warrant, the Company will mail to
the Warrantholder a statement setting forth the name and address of such transfer agent.

     Section 14. Notices. Unless otherwise provided, any notice required or permitted
under this Warrant shall be given in writing and shall be deemed effectively given as hereinafter
described (i) if given by personal delivery, then such notice shall be deemed given upon such
delivery, (ii) if given by telex or facsimile, then such notice shall be deemed given upon receipt
of confirmation of complete transmittal, (iii) if given by mail, then such notice shall be deemed
given upon the earlier of (A) receipt of such notice by the recipient or (B) three days after such
notice is deposited in first class mail, postage prepaid, and (iv) if given by an internationally
recognized overnight air courier, then such notice shall be deemed given one business day after
delivery to such carrier. All notices shall be addressed as follows: if to the Warrantholder, at
its address as set forth in the Company’s books and records and, if to the Company, at the address

-14-

 

as follows, or at such other address as the Warrantholder or the Company may designate by ten days’
advance written notice to the other:

If to the Company:

Magellan Petroleum Corporation

10 Columbus Boulevard

Hartford, CT 06106

Facsimile: (860) 293-2349

Attention: William H. Hastings, President and CEO

     Section 15. Registration Rights. The initial Warrantholder is entitled to the benefit
of certain registration rights with respect to the shares of Common Stock issuable upon the
exercise of this Warrant as provided in the Registration Rights Agreement, and any subsequent
Warrantholder may be entitled to such rights.

     Section 16.  Successors. All the covenants and provisions hereof by or for the
benefit of the Warrantholder shall bind and inure to the benefit of its respective successors and
assigns hereunder.

     Section 17. Governing Law; Consent to Jurisdiction; Waiver of Jury Trial. This
Warrant shall be governed by, and construed in accordance with, the internal laws of the State of
Delaware, without reference to the choice of law provisions thereof. The Company and, by accepting
this Warrant, the Warrantholder, each irrevocably submits to the exclusive jurisdiction of the
courts of Delaware for the purpose of any suit, action, proceeding, or judgment relating to or
arising out of this Warrant and the transactions contemplated hereby. Service of process in
connection with any such suit, action, or proceeding may be served on each party hereto anywhere in
the world by the same methods as are specified for the giving of notices under this Warrant. The
Company and, by accepting this Warrant, the Warrantholder, each irrevocably consents to the
jurisdiction of any such court in any such suit, action, or proceeding, and to the laying of venue
in such court. The Company and, by accepting this Warrant, the Warrantholder, each irrevocably
waives any objection to the laying of venue of any such suit, action, or proceeding brought in such
courts and irrevocably waives any claim that any such suit, action, or proceeding brought in any
such court has been brought in an inconvenient forum. EACH OF
THE COMPANY AND, BY ITS ACCEPTANCE HEREOF, THE WARRANTHOLDER HEREBY WAIVES ANY RIGHT TO REQUEST A
TRIAL BY JURY IN ANY

-15-

 

LITIGATION WITH RESPECT TO THIS WARRANT AND REPRESENTS THAT COUNSEL HAS BEEN
CONSULTED SPECIFICALLY AS TO THIS WAIVER.

     Section 18. Cashless Exercise. Notwithstanding any other provision contained herein
to the contrary, the Warrantholder may elect at any time and from time to time to receive, without
the payment by the Warrantholder of the aggregate Warrant Price in respect of the shares of Common
Stock to be acquired, shares of Common Stock of equal value to the value of this Warrant, or any
specified portion hereof, by the surrender of this Warrant (or such portion of this Warrant being
so exercised) together with a Net Issue Election Notice, in the form annexed hereto as Appendix B,
duly executed, to the Company. Thereupon, the Company shall issue to the Warrantholder such number
of fully paid, validly issued, and nonassessable shares of Common Stock as is computed using the
following formula:

X = Y (A - B)

        A

     where

     X = the number of shares of Common Stock to which the Warrantholder is entitled
upon such cashless exercise;

     Y = the total number of shares of Common Stock covered by this Warrant for
which the Warrantholder has surrendered purchase rights at such time for cashless
exercise (including both shares to be issued to the Warrantholder and shares as to
which the purchase rights are to be canceled as payment therefor);

     A = the Market Price of one share of Common Stock as at the date the net issue
election is made; and

     B = the Warrant Price in effect under this Warrant at the time the net issue
election is made.

     Section 19. No Rights as Stockholder. Prior to the exercise of this Warrant, the
Warrantholder shall not have or exercise any rights as a stockholder of the Company by virtue of
its ownership of this Warrant.

     Section 20. Amendment; Waiver Any term of this Warrant may be amended or waived
(including the adjustment provisions included in Section 8 of this Warrant) upon the written
consent of the Company and the Warrantholder.

-16-

 

     Section 21. Section Headings. The section headings in this Warrant are for the
convenience of only and in no way alter, modify, amend, limit, or restrict the provisions hereof.

-17-

 

     IN WITNESS WHEREOF, the Company has caused this Warrant to be duly executed, as of the
9th day of July, 2009.

	 	 	 	 	 	 	 
	 	 	MAGELLAN PETROLEUM CORPORATION	 	 
	 
	 	 	 	 	 	 
	 

	 	By:

Name:
	 	/s/ William H. Hastings
 

William H. Hastings
	 	 
	 

	 	Title:
	 	President and CEO	 	 

-18-

 

APPENDIX A

MAGELLAN PETROLEUM CORPORATION

WARRANT EXERCISE FORM

To Magellan Petroleum Corporation:

     The undersigned hereby irrevocably elects to exercise the right of purchase represented by the
within Warrant (“Warrant”) for, and to purchase thereunder by the payment of the Warrant Price and
surrender of the Warrant,                      shares of Common Stock (“Warrant Shares”) provided for
therein, and requests that certificates for the Warrant Shares be issued as follows:

	 	 	 	 	 	 	 
	 

	 	Name:	 	 	 	 
	 

	 	 	 	 

	 	 
	 

	 	Address:	 	 	 	 
	 

	 	 	 	 

	 	 
	 
	 

	 	 	 	 	 	 
	 

	 	Federal Tax ID	 	 	 	 
	 

	 	Or Social Security No.:	 	 	 	 
	 

	 	 	 	 

	 	 

and delivered by

____ (certified mail to the above address, or

____ (electronically (provide DWAC Instructions:                    ), or

____ (other (specify):                                                               
        ).

and, if the number of Warrant Shares shall not be all the Warrant Shares purchasable upon exercise
of the Warrant, that a new Warrant for the balance of the Warrant Shares purchasable upon exercise
of this Warrant be registered in the name of the undersigned Warrantholder or the undersigned’s
Assignee as below indicated and delivered to the address stated below.

-19-

 

Note: The signature must correspond with the name of the Warrantholder as written on the first
page of the Warrant in every particular, without alteration or enlargement or any change whatever,
unless the Warrant has been assigned.

	 	 	 	 	 	 	 
	Dated:                                         , ___

	 	Signature:	 	 	 	 
	 

	 	 	 	 

	 	 

	 	 	 	 	 
	 

	 	 

Name (please print)
	 	 
	 
	 	 	 	 
	 

	 	 

	 	 
	 

	 	 

Address
	 	 
	 
	 	 	 	 
	 

	 	 

Federal Identification or
	 	 
	 

	 	Social Security No.	 	 
	 
	 	 	 	 
	 

	 	Assignee:	 	 
	 
	 	 	 	 
	 

	 	 

	 	 
	 

	 	 

	 	 
	 

	 	 

	 	 

-20-

 

APPENDIX B

MAGELLAN PETROLEUM CORPORATION

NET ISSUE ELECTION NOTICE

To: Magellan Petroleum Corporation

Date:                                        

     The undersigned hereby elects under Section 18 of this Warrant to surrender the right
to purchase                      shares of Common Stock pursuant to this Warrant and hereby requests the
issuance of                       shares of Common Stock. The certificate(s) for the shares issuable upon
such net issue election shall be issued in the name of the undersigned or as otherwise indicated
below.

	 	 	 
	 

Signature

	 	 
	 
	 	 
	 

Name for Registration

	 	 
	 
	 	 
	 

Mailing Address

	 	 

-21-

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