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  <TITLE> Marathon Oil Corporation (Form: 8-K) </TITLE>
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  		UNITED STATES<BR>
  	SECURITIES AND EXCHANGE COMMISSION
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  	WASHINGTON, D.C. 20549
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  	FORM 8-K
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  	CURRENT REPORT
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  	Pursuant to Section&nbsp;13 or 15(d) of the Securities Exchange Act of 1934
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  	Date of Report (Date of Earliest Event Reported):
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  	&nbsp;
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  	September 27, 2007
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  	Marathon Oil Corporation
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  <BR>__________________________________________<BR>
  	(Exact name of registrant as specified in its charter)
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  	Delaware
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  	1-5153
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  	25-0996816
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  _____________________<BR>
  	(State or other jurisdiction
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  _____________<BR>
  	(Commission
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  ______________<BR>
  	(I.R.S. Employer
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  	of incorporation)
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  	File Number)
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  	Identification No.)
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  	5555 San Felipe Road, Houston, Texas
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  	77056
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  _________________________________<BR>
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  	&nbsp;
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  ___________<BR>
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  	Registrant&#146;s telephone number, including area code:
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  	(713) 629-6600
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  	Not Applicable
  <BR>______________________________________________<BR>
  	Former name or former address, if changed since last report
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  	&nbsp;
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  <!-- CoverPageRegistrant END --><P><FONT SIZE="2">
  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:</FONT>
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  [&nbsp;&nbsp;]&nbsp;&nbsp;Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)<br>
  [&nbsp;&nbsp;]&nbsp;&nbsp;Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)<br>
  [&nbsp;&nbsp;]&nbsp;&nbsp;Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))<br>
  [&nbsp;&nbsp;]&nbsp;&nbsp;Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))<br>
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  <B>
  	Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.
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  On September 27, 2007, Marathon Oil Corporation ("Marathon") completed the sale of $750,000,000 aggregate principal amount of its 6.000% Senior Notes due 2017 and $750,000,000 aggregate principal amount of its 6.600% Senior Notes due 2037 (collectively, the "Notes"), which were sold pursuant to an underwriting agreement (the "Underwriting Agreement").  The Notes were issued under an Indenture dated February 26, 2002 between Marathon and The Bank of New York Trust Company, N.A., successor in interest to JPMorgan Chase Bank, as Trustee, relating to senior debt securities of Marathon (the "Senior Indenture").  The Underwriting Agreement, the Senior Indenture and the forms of the Notes are included as exhibits to this current report and are incorporated by reference into this Item 2.03.
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  	Item 9.01 Financial Statements and Exhibits.
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  (d)	Exhibits.<br><br>1.1	Underwriting Agreement dated September 20, 2007 among Marathon and Banc of America Securities LLC and J.P. Morgan Securities Inc., as representatives of the several Underwriters named therein.<br><br>4.1	Indenture dated February 26, 2002 between Marathon and The Bank of New York Trust Company, N.A., successor in interest to JPMorgan Chase Bank, as Trustee, relating to senior debt securities of Marathon (incorporated by reference to Exhibit 4.4 to Marathon&#x2019;s Registration Statement on Form S-3 filed with the SEC on July 26, 2007 (Reg. No. 333-144874)).<br><br>4.2	Officers&#x2019; Certificate delivered pursuant to Sections 1.02, 2.01, 3.01 and 3.03 of the Senior Indenture, dated as of September 27, 2007, providing for the issuance of Marathon&#x2019;s 6.000% Senior Notes due 2017 and 6.600% Senior Notes due 2037.<br><br>4.3	Form of Notes (included in Exhibit 4.2 above).<br><br>5.1	Opinion of Baker Botts L.L.P.<br>
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  	SIGNATURES
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  	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.
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  	Marathon Oil Corporation
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  	&nbsp;&nbsp;
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  <I>
  	September 27, 2007
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  	&nbsp;
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  	By:
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  <I>
  	Michael K. Stewart
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  	&nbsp;
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  	Name: Michael K. Stewart
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  <I>
  	Title: Vice President, Accounting and Controller
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  	Exhibit&nbsp;Index
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  	Exhibit No.
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  	Description
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  	1.1
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  	&nbsp;
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  Underwriting Agreement dated September 20, 2007 among Marathon and Banc of America Securities LLC and J.P. Morgan Securities Inc., as representatives of the several Underwriters named therein.
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  	4.1
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  Indenture dated February 26, 2002 between Marathon and The Bank of New York Trust Company, N.A., successor in interest to JPMorgan Chase Bank, as Trustee, relating to senior debt securities of Marathon (incorporated by reference to Exhibit 4.4 to Marathon&#x2019;s Registration Statement on Form S-3 filed with the SEC on July 26, 2007 (Reg. No. 333-144874)).
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  	4.2
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  Officers&#x2019; Certificate delivered pursuant to Sections 1.02, 2.01, 3.01 and 3.03 of the Senior Indenture, dated as of September 27, 2007, providing for the issuance of Marathon&#x2019;s 6.000% Senior Notes due 2017 and 6.600% Senior Notes due 2037.
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  	4.4
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  Form of Notes (included in Exhibit 4.2 above).
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  	5.1
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  Opinion of Baker Botts L.L.P.
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metadata_documents: [{"type": "8-K", "sequence": "1", "filename": "htm_22887.htm", "description": "LIVE FILING", "secsgml_size_bytes": 13330}]
metadata_filer: {"company-data": {"conformed-name": "MARATHON OIL CORP", "cik": "0000101778", "assigned-sic": "2911", "irs-number": "250996816", "state-of-incorporation": "DE", "fiscal-year-end": "1207"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-05153", "film-number": "071138398"}, "business-address": {"street1": "P O BOX 3128", "city": "HOUSTON", "state": "TX", "zip": "77253-3128", "phone": "7136296600"}, "mail-address": {"street1": "5555 SAN FELIPE ROAD", "city": "HOUSTON", "state": "TX", "zip": "77056"}, "former-company": [{"former-conformed-name": "USX CORP", "date-changed": "19920703"}, {"former-conformed-name": "UNITED STATES STEEL CORP/DE", "date-changed": "19860714"}]}
text: Marathon Oil Corporation (Form: 8-K)
  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):
  September 27, 2007
  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))
  Top of the Form
  Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.
  On September 27, 2007, Marathon Oil Corporation ("Marathon") completed the sale of $750,000,000 aggregate principal amount of its 6.000% Senior Notes due 2017 and $750,000,000 aggregate principal amount of its 6.600% Senior Notes due 2037 (collectively, the "Notes"), which were sold pursuant to an underwriting agreement (the "Underwriting Agreement").  The Notes were issued under an Indenture dated February 26, 2002 between Marathon and The Bank of New York Trust Company, N.A., successor in interest to JPMorgan Chase Bank, as Trustee, relating to senior debt securities of Marathon (the "Senior Indenture").  The Underwriting Agreement, the Senior Indenture and the forms of the Notes are included as exhibits to this current report and are incorporated by reference into this Item 2.03.
  Item 9.01 Financial Statements and Exhibits.
  (d)	Exhibits.
  1.1	Underwriting Agreement dated September 20, 2007 among Marathon and Banc of America Securities LLC and J.P. Morgan Securities Inc., as representatives of the several Underwriters named therein.
  4.1	Indenture dated February 26, 2002 between Marathon and The Bank of New York Trust Company, N.A., successor in interest to JPMorgan Chase Bank, as Trustee, relating to senior debt securities of Marathon (incorporated by reference to Exhibit 4.4 to Marathon's Registration Statement on Form S-3 filed with the SEC on July 26, 2007 (Reg. No. 333-144874)).
  4.2	Officers' Certificate delivered pursuant to Sections 1.02, 2.01, 3.01 and 3.03 of the Senior Indenture, dated as of September 27, 2007, providing for the issuance of Marathon's 6.000% Senior Notes due 2017 and 6.600% Senior Notes due 2037.
  4.3	Form of Notes (included in Exhibit 4.2 above).
  5.1	Opinion of Baker Botts L.L.P.
  Top of the Form
  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
  September 27, 2007
  By:
  Michael K. Stewart
  Name: Michael K. Stewart
  Title: Vice President, Accounting and Controller
  Top of the Form
  Exhibit Index
  Exhibit No.
  Description
  1.1
  Underwriting Agreement dated September 20, 2007 among Marathon and Banc of America Securities LLC and J.P. Morgan Securities Inc., as representatives of the several Underwriters named therein.
  4.1
  Indenture dated February 26, 2002 between Marathon and The Bank of New York Trust Company, N.A., successor in interest to JPMorgan Chase Bank, as Trustee, relating to senior debt securities of Marathon (incorporated by reference to Exhibit 4.4 to Marathon's Registration Statement on Form S-3 filed with the SEC on July 26, 2007 (Reg. No. 333-144874)).
  4.2
  Officers' Certificate delivered pursuant to Sections 1.02, 2.01, 3.01 and 3.03 of the Senior Indenture, dated as of September 27, 2007, providing for the issuance of Marathon's 6.000% Senior Notes due 2017 and 6.600% Senior Notes due 2037.
  4.4
  Form of Notes (included in Exhibit 4.2 above).
  5.1
  Opinion of Baker Botts L.L.P.