Release Details

THE WOODLANDS, Texas, June 15, 2010 /PRNewswire via COMTEX/ --Newpark Resources, Inc. (NYSE: NR) announced today that it will release its second quarter 2010 results on Thursday, July 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, July 30, 2010 at 10:00 a.m. Eastern / 9:00 a.m. Central.

    What:   Newpark Resources Second Quarter 2010 Earnings Conference Call
    When:   Friday, July 30, 2010 at 10:00 a.m. Eastern /9:00 a.m. Central
    How:    Live via phone --By dialing 480-629-9692 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 6, 2010 and may be accessed by dialing (303) 590-3030 and using pass code 4313117#. 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.