Release Details

METAIRIE, La., Jan 18, 2007 /PRNewswire-FirstCall via COMTEX News Network/ -- Newpark Resources, Inc. (NYSE: NR) announced today that it will release its fourth quarter and year- end results on Thursday, March 8, 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, for Friday, March 9, 2007 at 9:30 a.m. Eastern / 8:30 a.m. Central.

What: Newpark Resources Fourth Quarter 2006 Earnings Conference Call

When: Friday, March 9, 2007 at 9:30 a.m. Eastern / 8:30 a.m. Central

How: Live via phone -- By dialing (303) 262-2143 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 March 16, 2007 and may be accessed by dialing (303) 590-3000 and using pass code 11082391#. 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, environmental waste treatment solutions, and temporary worksites and access roads for oilfield and other commercial markets. For more information, visit our website at http://www.newpark.com .

Contacts: James E. Braun, CFO
Newpark Resources, Inc.
504-838-8222

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

SOURCE Newpark Resources, Inc.

James E. Braun, CFO of Newpark Resources, Inc., +1-504-838-8222; or Ken Dennard, Managing Partner of Dennard Rupp Gray & Easterly, LLC, +1-713-529-6600, or ksdennard@drg-e.com , for Newpark Resources, Inc.

http://www.newpark.com