Release Details

THE WOODLANDS, Texas, March 22, 2010 /PRNewswire via COMTEX/ -- Newpark Resources, Inc. (NYSE: NR) announced today that it will release its first quarter 2010 results on Thursday, April 29, 2010 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, April 30, 2010 at 10:00 a.m. Eastern / 9:00 a.m. Central.

               Newpark Resources First Quarter 2010 Earnings Conference
    What:      Call
               Friday, April 30, 2010 at 10:00 a.m. Eastern /9:00 a.m.
    When:      Central
               Live via phone -By dialing 480-629-9722 and asking for
    How:       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 May 7, 2010 and may be accessed by dialing (303) 590-3030 and using pass code 4272524#. Also, an archive of the webcast will be available shortly after the call at 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 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.