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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
101778	Marathon Oil Corp	MRO	Crude Petroleum & Natural Gas (1311)	250996816

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1421707	Sr J Howard Thill	C/O Marathon Oil Corporation 5555 San Felipe Road Houston TX 77056	Vice President (See Remarks)	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
Marathon Oil Corporation Common Stock	Acquisiton	2013-12-13	2,031	$16.19	26,445	No	4	M	Direct
Marathon Oil Corporation Common Stock	Disposition	2013-12-13	2,031	$35.96	24,414	No	4	S	Direct
Marathon Oil Corporation Common Stock	Acquisiton	2013-12-13	4,062	$23.69	28,476	No	4	M	Direct
Marathon Oil Corporation Common Stock	Disposition	2013-12-13	4,062	$35.97	24,414	No	4	S	Direct
Marathon Oil Corporation Common Stock	Acquisiton	2013-12-13	6,944	$34.06	31,358	No	4	M	Direct
Marathon Oil Corporation Common Stock	Disposition	2013-12-13	6,944	$35.96	24,414	No	4	S	Direct
Marathon Oil Corporation Common Stock	Acquisiton	2013-12-13	17,846	$14.92	42,260	No	4	M	Direct
Marathon Oil Corporation Common Stock	Disposition	2013-12-13	17,846	$35.94	24,414	No	4	S	Direct
Marathon Oil Corporation Common Stock	Acquisiton	2013-12-13	22,521	$18.28	46,935	No	4	M	Direct
Marathon Oil Corporation Common Stock	Disposition	2013-12-13	22,521	$35.91	24,414	No	4	S	Direct
Marathon Oil Corporation Common Stock	Acquisiton	2013-12-13	14,234	$30.81	38,648	No	4	M	Direct
Marathon Oil Corporation Common Stock	Disposition	2013-12-13	14,234	$36.00	24,414	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct
No	4	M	Direct
No	4	S	Direct
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	2013-12-13	2,031	$0.00	2,031	$16.19
Common Stock	Employee Stock Option (Right to Buy)	Disposition	2013-12-13	4,062	$0.00	4,062	$23.69
Common Stock	Employee Stock Option (Right to Buy)	Disposition	2013-12-13	6,944	$0.00	6,944	$34.06
Common Stock	Employee Stock Option (Right to Buy)	Disposition	2013-12-13	17,846	$0.00	17,846	$14.92
Common Stock	Employee Stock Option (Right to Buy)	Disposition	2013-12-13	22,521	$0.00	22,521	$18.28
Common Stock	Employee Stock Option (Right to Buy)	Disposition	2013-12-13	14,234	$0.00	14,234	$30.81

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
0	2008-06-10	2015-06-10	No	4	M	Direct
0	2009-06-01	2016-06-01	No	4	M	Direct
0	2011-02-27	2018-02-27	No	4	M	Direct
0	2012-02-25	2019-02-25	No	4	M	Direct
0	2013-02-24	2020-02-24	No	4	M	Direct
7,118	2012-02-23	2021-02-23	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 $35.96 to $35.97, inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.95 to $35.96, inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.93 to $35.95, inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.80 to $36.04, inclusive.
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.98 to $36.01, inclusive.
Vests in cumulative annual installments of 7,116, 7,118 and 7,118 shares on February 23, 2012, 2013 and 2014, respectively.