UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.  20549


FORM 10-Q/AA1


(Mark One) 
[X]
QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
 For the Quarterly Period Ended June 30, 2010March 31, 2011

OR

[   ]
TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
OF THE SECURITIES EXCHANGE ACT OF 1934
 For the transition period from _____ to _____


Commission file number 1-5153

Marathon Oil Corporation
(Exact name of registrant as specified in its charter)

Delaware25-0996816
(State or other jurisdiction of incorporation or organization)(I.R.S. Employer Identification No.)
5555 San Felipe Road, Houston, TX  77056-2723
(Address of principal executive offices)

(713) 629-6600
(Registrant’s telephone number, including area code)


 
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.        Yes xþ   No o
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Webweb site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of
Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).files.) Yes xþ   No o
 
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company.  See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.
Large accelerated filer x þ
Accelerated filer            
Non-accelerated filer               (Do not check if a smaller reporting company) 
Smaller reporting company           
 
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).        Yes o No þ   x

 
There were 709,668,991712,088,523 shares of Marathon Oil Corporation common stock outstanding as of July 30, 2010.April 29, 2011.
 



 
 
 
 

Explanatory Note

The purpose of
We are filing this Amendment No. 1 to our Quarterly Reportquarterly report on Form 10-Q for the periodquarter ended June 30, 2010, as filed withMarch 31, 2011 solely to file Exhibit 3.1. This amendment does not change or update the Securities and Exchange Commission on August 6, 20109, is to furnish Exhibit 101 todisclosures set forth in the Form 10-Q as required by Rule 405 of Regulation S-T.  Exhibit 101 to this report provides the following items from our Form 10-Q formatted in Extensible Business Reporting Language (XBRL): (i) the unaudited Consolidated Balance Sheets, (ii) the unaudited Consolidated Statements of Income, (iii) the unaudited Consolidated Statements of Cash Flows,originally filed and (iv) the notes to the unaudited consolidated financial statements, tagged as blocks of text.
Users of this data are advised that pursuant to Rule 406T of Regulation S-T these interactive data files are deemed not filed or part of a registration statement or prospectus for purposes of sections 11 or 12 of the Securities Act of 1933, are deemed not filed for purposes of section 18 of the Securities and Exchange Act of 1934, and otherwise are not subject to liability under those sections. No other changes have been made to the Form 10-Q other than those described above. This Amendment No. 1 does not otherwise reflect subsequent events occurring after the original filing date of the Form 10-Q or modify or update in any way disclosures made in the Form 10-Q.


Item 6.  Exhibits

Exhibit Number   Incorporated by Reference Filed Herewith Furnished Herewith
 Exhibit Description Form Exhibit Filing Date SEC File No.  
               
3.1  Amended By-laws of Marathon Oil Corporation         X  
               
12.1  Computation of Ratio of Earnings to Fixed Charges. 10-Q  12.1 05/06/2011      
               
31.1  Certification of President and Chief Executive Officer pursuant to Rule 13(a)-14 and 15(d)-14 under the Securities Exchange Act of 1934. 10-Q  31.1 05/06/2011      
31.2  Certification of Executive Vice President and Chief Financial Officer pursuant to Rule 13(a)-14 and 15(d)-14 under the Securities Exchange Act of 1934. 10-Q  31.2 05/06/2011      
32.1  Certification of President and Chief Executive Officer pursuant to 18 U.S.C. Section 1350. 10-Q  32.1 05/06/2011      
32.2  Certification of Executive Vice President and Chief Financial Officer pursuant to 18 U.S.C. Section 1350. 10-Q 32.2 05/06/2011      
               
101.INS XBRL Instance Document. 10-Q 101.INS 05/06/2011      
101.SCH XBRL Taxonomy Extension Schema. 10-Q  101.SCH 05/06/2011      
101.PRE XBRL Taxonomy Extension Presentation Linkbase. 10-Q  101.PRE 05/06/2011      
101.CAL XBRL Taxonomy Extension Calculation Linkbase. 10-Q  101.CAL 05/06/2011      
101.DEF XBRL Taxonomy Extension Definition Linkbase. 10-Q  101.DEF 05/06/2011      
101.LAB XBRL Taxonomy Extension Label Linkbase. 10-Q  101.LAB 05/06/2011      
               

The following exhibits are filed as a part of this report:
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Exhibit Number   Incorporated by ReferenceFiled Herewith Furnished Herewith
 Exhibit Description Form Exhibit Filing Date SEC File No. 
3.1  Certificate of Elimination of Special Voting Stock of Marathon Oil Corporation 8-K 3.1  6/30/10     
12.1  Computation of Ratio of Earnings to Fixed Charges        X  
31.1  Certification of President and Chief Executive Officer pursuant to Rule 13(a)-14 and 15(d)-14 under the Securities Exchange Act of 1934        X  
31.2  Certification of Executive Vice President and Chief Financial Officer pursuant to Rule 13(a)-14 and 15(d)-14 under the Securities Exchange Act of 1934        X  
32.1  Certification of President and Chief Executive Officer pursuant to 18 U.S.C. Section 1350        X  
32.2  Certification of Executive Vice President and Chief Financial Officer pursuant to 18 U.S.C. Section 1350        X  
101.INS XBRL Instance Document          X
101.SCH XBRL Taxonomy Extension Schema          X
101.CAL XBRL Taxonomy Extension Calculation Linkbase          X
101.PRE XBRL Taxonomy Extension Presentation Linkbase          X
101.LAB XBRL Taxonomy Extension Label Linkbase          X
101.DEF XBRL Taxonomy Extension Definitions Linkbase           X


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 thereunto duly authorized.
 


September 2, 2010May 13, 2011MARATHON OIL CORPORATION
  
 
By: /s/  Michael K. Stewart
 Michael K. Stewart
 Vice President, Accounting and Controller

 
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