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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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  	August 14, 2006
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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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  	&nbsp;&nbsp;
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  	5555 San Felipe Road, Houston, Texas
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  	77056
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  _________________________________<BR>
  	(Address of principal executive offices)
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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 8.01 Other Events.
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  On August 14, 2006, Mr. Clarence P. Cazalot, Jr., President and Chief Executive Officer of Marathon Oil Corporation (the "Company"), entered into a 10b5-1 Trading Plan with Fidelity Brokerage Services LLC.  This Trading Plan is intended to comply with the requirements of Rule 10b5-1 promulgated by the Securities and Exchange Commission under Section 10(b) of the Securities Exchange Act of 1934.  The Trading Plan covers the potential exercise of stock options and associated sale of up to 350,000 shares of the Company&#x2019;s common stock during the period commencing on August 16, 2006 and ending on August 14, 2007, unless terminated earlier under certain circumstances.<br><br>On August 16, 2006, Mr. Gary R. Heminger, Executive Vice President of the Company, entered into a Trading Plan with Fidelity Brokerage Services LLC.  This Trading Plan is intended to comply with the requirements of Rule 10b5-1 promulgated by the Securities and Exchange Commission under Section 10(b) of the Securities Exchange Act of 1934.  The Trading Plan covers the potential exercise of stock options and associated sale of up to 80,200 shares of the Company&#x2019;s common stock during the period commencing on August 17, 2006 and ending on August 15, 2007, unless terminated earlier under certain circumstances.<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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  <I>
  	August 17, 2006
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  	By:
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  <I>
  	Janet F. Clark
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  	Name: Janet F. Clark
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  	Title: Senior Vice President and Chief Financial Officer
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metadata_documents: [{"type": "8-K", "sequence": "1", "filename": "htm_14483.htm", "description": "LIVE FILING", "secsgml_size_bytes": 9517}]
metadata_filer: {"company-data": {"conformed-name": "MARATHON OIL CORP", "cik": "0000101778", "assigned-sic": "2911", "irs-number": "250996816", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "033-07065", "film-number": "061040134"}, "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):
  August 14, 2006
  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 8.01 Other Events.
  On August 14, 2006, Mr. Clarence P. Cazalot, Jr., President and Chief Executive Officer of Marathon Oil Corporation (the "Company"), entered into a 10b5-1 Trading Plan with Fidelity Brokerage Services LLC.  This Trading Plan is intended to comply with the requirements of Rule 10b5-1 promulgated by the Securities and Exchange Commission under Section 10(b) of the Securities Exchange Act of 1934.  The Trading Plan covers the potential exercise of stock options and associated sale of up to 350,000 shares of the Company's common stock during the period commencing on August 16, 2006 and ending on August 14, 2007, unless terminated earlier under certain circumstances.
  On August 16, 2006, Mr. Gary R. Heminger, Executive Vice President of the Company, entered into a Trading Plan with Fidelity Brokerage Services LLC.  This Trading Plan is intended to comply with the requirements of Rule 10b5-1 promulgated by the Securities and Exchange Commission under Section 10(b) of the Securities Exchange Act of 1934.  The Trading Plan covers the potential exercise of stock options and associated sale of up to 80,200 shares of the Company's common stock during the period commencing on August 17, 2006 and ending on August 15, 2007, unless terminated earlier under certain circumstances.
  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
  August 17, 2006
  By:
  Janet F. Clark
  Name: Janet F. Clark
  Title: Senior Vice President and Chief Financial Officer