Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Filipos Susan M.
 2. Date of Event Requiring Statement (Month/Day/Year)
05/03/2010		 3. Issuer Name and Ticker or Trading Symbol
MAGELLAN PETROLEUM CORP /DE/ [MPET]
(Last)
(First)
(Middle)
7 CUSTOM HOUSE STREET		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Controller / Interim CFO
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

PORTLAND, ME 04101		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 0 (1)
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Non-qualified stock option (right to buy)   (2) 10/01/2019 Common Stock 150,000 $ 1.4 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Filipos Susan M.
7 CUSTOM HOUSE STREET
PORTLAND, ME 04101		       Controller / Interim CFO  

Signatures

/s/ Susan M. Filipos 05/07/2010
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The reporting person serves as the Controller of Magellan Petroleum Corporation. Effective as of May 3, 2010, the reporting person was appointed the interim Chief Financial Officer of the Company.
(2) On October 1, 2009, the reporting person was awarded 150,000 non-qualified stock options pursuant to the Company's 1998 Stock Incentive Plan, in conjunction with the commencement of employment by the Company. The awarded stock options have an exercise price of $1.40 per share, calculated in accordance with the terms of the Plan and will expire on October 1, 2019. The awarded stock options vest as follows: (1) one-half of the award (75,000 shares) will vest on October 1, 2010, and one-half of the award (75,000 shares) will vest on October 1, 2011.

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