Release Details

THE WOODLANDS, Texas, June 19 /PRNewswire-FirstCall/ -- Newpark Resources, Inc. (NYSE: NR) announced today that it will release its second quarter results on Thursday, August 2, 2007 after the market closes. In conjunction with the release, the Company has scheduled a conference call, which will be broadcast live over the Internet, on Friday, August 3, 2007 at 9:30 a.m. Eastern / 8:30 a.m. Central.

What: Newpark Resources Second Quarter 2007 Earnings Conference Call
When: Friday, August 3, 2007 at 9:30 a.m. Eastern / 8:30 a.m. Central
How: Live via phone -- By dialing (303) 262-2140 and asking for the Newpark Resources call at least 10 minutes prior to the start time, or Live over the Internet -- By logging onto the web at the address below
Where: http://www.newpark.com

For those who cannot listen to the live call, a replay will be available through August 10, 2007 and may be accessed by dialing (303) 590-3000 and using pass code 11092386#. Also, an archive of the webcast will be available shortly after the call at http://www.newpark.com for 90 days.

Newpark Resources, Inc. is a worldwide provider of drilling fluids, temporary worksites and access roads for oilfield and other commercial markets, and environmental waste treatment solutions. For more information, visit our website at http://www.newpark.com.

Contacts: James E. Braun, CFO
Newpark Resources, Inc.
281-362-6800

Ken Dennard, Managing Partner
Dennard Rupp Gray & Easterly, LLC
ksdennard@drg-e.com
713-529-6600

SOURCE Newpark Resources, Inc.

/CONTACT: James E. Braun, CFO of Newpark Resources, Inc., +1-281-362-6800; or Ken Dennard, Managing Partner of Dennard Rupp Gray & Easterly, LLC, +1-713-529-6600, ksdennard@drg-e.com, for Newpark Resources, Inc. /

/Web site: http://www.newpark.com /