||National Oilwell Varco, Inc.
7909 Parkwood Circle Drive
Houston, TX 77036
September 23, 2010
U.S. Securities and Exchange Commission
Division of Corporation Finance
100 F. Street, N.E.
Washington, D.C. 20549
Attn: Mr. Douglas Brown
||National Oilwell Varco, Inc. Request for Extension of Response Time to SEC
Comment Letter dated September 10, 2010
Ladies and Gentleman:
We refer you to the letter to National Oilwell Varco, Inc. (the Company) dated September 10,
2010 (the Comment Letter) containing the comments of the Staff of the Securities and Exchange
Commission to the Companys Form 10-K for the fiscal year ended December 31, 2009 filed on February
26, 2010 (File No. 1-12317). Following up on the conversation of our attorney with you on
September 23, 2010, we are writing to confirm that we have requested an extension to respond to the
Comment Letter until October 6, 2010, as the Company needs additional time to process information
and formulate appropriate responses to the Comment Letter.
We appreciate the Staffs cooperation in this matter.
Please telephone me at (713) 346-7550, or our attorney, Eric Johnson of Locke Lord Bissell &
Liddell LLP at (713) 226-1249, with any additional questions or comments you may have.
/s/ Dwight W. Rettig
Dwight W. Rettig
Senior Vice President, General Counsel