Stull, Stull & Brody Announces Commencement of Lawsuit against
Newpark Resources, Inc. for the Back-Dating of Stock Option Grants

NEW YORK, June 7, 2006 — Notice is hereby given that a class action has been commenced in the United States District Court for the Eastern District of Louisiana on behalf of a class (the “Class”) of all persons who purchased or acquired publicly traded securities of Newpark Resources, Inc. (“Newpark” or the “Company”) (NYSE: NR) between February 28, 2005 and April 16, 2006 inclusive (the “Class Period”).

Stull, Stull & Brody has substantial experience representing employees who suffered losses from purchases of their employer’s stock in their 401(k) plans. If you bought Newpark Resources, Inc. stock through your Newpark Resources, Inc. retirement account and have information or would like to learn more about these claims, please contact us.

The Complaint alleges that defendants violated federal securities laws by issuing a series of materially false statements. Specifically, defendants’ Class Period representations regarding Newpark were materially false and misleading when made because the Company failed to disclose irregularities with the processing and payment of invoices by the Company’s subsidiary, Soloco Texas, LP. On April 17, 2006, Newpark issued a press release announcing a Company investigation into the processing and payment of invoices at Soloco Texas LP, and that Newpark’s CFO and former CEO had been placed on administrative leave pending the completion of the investigation. On this news, shares of Newpark plummeted to $1.28 per share, to close on April 17, 2006, at $6.14 per share – more than 17% below the previous day’s close.

Plaintiff seeks to recover damages on behalf of all those who purchased or otherwise acquired Newpark securities during the Class Period. If you are a member of the class, you may request that the Court appoint you as lead plaintiff by no later than June 20, 2006. A lead plaintiff is a representative party that acts on behalf of other class members in directing the litigation. In order to be appointed lead plaintiff, the Court must determine that the class member’s claim is typical of the claims of other class members, and that the class member will adequately represent the class. Under certain circumstances, one or more class members may together serve as “lead plaintiff.” Your ability to share in any recovery is not, however, affected by the decision whether or not to serve as a lead plaintiff. You may retain Stull, Stull & Brody, or other counsel of your choice, to serve as your counsel in this action. Stull, Stull & Brody has litigated many class actions for violations of securities laws in federal courts over the past 30 years and has obtained court approval of substantial settlements on numerous occasions. Stull, Stull & Brody maintains offices in both New York and Los Angeles.

If you currently hold shares of any of the above-referenced companies and wish to discuss this action or have any questions concerning this notice or your rights or interests with respect to these matters, please contact Tzivia Brody, Esq. at Stull, Stull & Brody by e-mail at SSBNY@aol.com, or by fax at 212/490-2022, or by writing to Stull, Stull & Brody, 6 East 45th Street, New York, NY 10017. You can also visit our website at www.ssbny.com.

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