NOV Inc. — Director's Dealing 2011

Aug 2, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: NATIONAL OILWELL VARCO INC (NOV)
CIK: 0001021860
Period of Report: 2011-08-02

Reporting Person: WILLIAMS CLAY C (Exec. Vice President and CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-08-02	Common Stock	M	50000	$33.29	Acquired	205129	Direct
2011-08-02	Common Stock	M	50000	$35.225	Acquired	255129	Direct
2011-08-02	Common Stock	S	100000	$78.9981	Disposed	155129	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-08-02	Non-Qualified Stock Option (right to buy)	$33.29	M	50000	Disposed	2016-02-22	Common Stock (50000)	Direct
2011-08-02	Non-Qualified Stock Option (right to buy)	$35.225	M	50000	Disposed	2017-03-02	Common Stock (50000)	Direct

Footnotes

F1: Options vest in three (3) equal annual installments commencing on the date indicated.