UNITED STATES

 SECURITIES AND EXCHANGE COMMISSION

  WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of Earliest Event Reported): April 20, 2009

Marathon Oil Corporation

 __________________________________________

 (Exact name of registrant as specified in its charter)

Delaware	1-5153		25-0996816
_____________________  (State or other jurisdiction	_____________  (Commission		______________  (I.R.S. Employer
of incorporation)	File Number)		Identification No.)
5555 San Felipe Road, Houston, Texas			77056
_________________________________  (Address of principal executive offices)			___________  (Zip Code)
Registrant’s telephone number, including area code:		(713) 629-6600

Not Applicable

 ______________________________________________

 Former name or former address, if changed since last report

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

 [  ]  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

 [  ]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

 [  ]  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

 [  ]  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 5.02 – Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

Steven B. Hinchman, a named executive officer and Executive Vice President of Technology and Services for Marathon Oil Corporation, has elected to retire effective June 1, 2009.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	Marathon Oil Corporation
April 20, 2009	By:	/s/  Michael K. Stewart
		Name: Michael K. Stewart
		Title: Vice President, Accounting and Controller