National Oilwell Varco, Inc. (NYSE:NOV) has scheduled a conference call to discuss the second quarter results of 2008 on Tuesday, July 29, 2008 at 9:00 a.m. Central Time. Financial results for the second quarter of 2008 are expected to be released that morning before the market opens.

The call will be broadcast through the Investor Relations link on National Oilwell Varco’s web site at www.nov.com, and a replay will be available on the site for thirty days following the conference. Participants may also join the conference call by dialing 303-262-2050 five to ten minutes prior to the scheduled start time.

National Oilwell Varco is a worldwide leader in the design, manufacture and sale of equipment and components used in oil and gas drilling and production operations, the provision of oilfield services, and supply chain integration services to the upstream oil and gas industry.

National Oilwell Varco, Inc., Houston
Clay Williams, 713-346-7606