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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
101778	Marathon Oil Corp	MRO	Petroleum Refining (2911)	250996816

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1331928	R Gary Heminger	C/O Marathon Oil Corporation 5555 San Felipe Road Houston TX 77056	Executive V. P. - Downstream	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Marathon Oil Corporation Common Stock	Acquisiton	2011-02-08	40,000	$16.26	222,528	No	4	M	Direct
Marathon Oil Corporation Common Stock	Disposition	2011-02-08	40,000	$46.20	182,528	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	M	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option (Right to Buy)	Disposition	2011-02-08	40,000	$0.00	40,000	$16.26

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2002-05-29	2011-05-29	No	4	M	Direct

Footnotes

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $46.08 to $46.30, inclusive. The reporting person has provided to the issuer, and will provide to any security holder of the issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.
Vested in cumulative equal annual installments on May 29, 2002, 2003 and 2004, respectively.