Grey Wolf, Inc. Announces Response to Unsolicited Proposal from Precision Drilling Trust

Business Wire, June 12, 2008

HOUSTON -- Grey Wolf, Inc. (AMEX:GW) today announced that its Board of Directors has carefully analyzed the previously-announced acquisition proposal from the Precision Drilling Trust (TSE:PD.UN and NYSE:PDS) after receiving advice from financial and legal advisors. Grey Wolf's Board of Directors has concluded that Precision's offer is not superior to Grey Wolf's pending merger with Basic Energy Services, Inc. (NYSE:BAS). Grey Wolf also confirmed that the previously-announced merger agreement between Grey Wolf and Basic has not been amended and remains in effect.

Grey Wolf, headquartered in Houston, Texas, is a leading provider of turnkey and contract oil and gas land drilling services in the best natural gas producing regions in the United States with a fleet of 121 drilling rigs, which will increase to 123 with the addition of two new rigs in 2008.

Forward Looking Statements and Additional Information

This document may include statements herein that are "forward-looking statements" as defined by the Securities and Exchange Commission (the "SEC"). All statements, other than statements of historical fact, included herein that address activities, events or developments that Grey Wolf or Basic Energy Services expect, believe or anticipate will or may occur in the future are forward-looking statements. These forward-looking statements are subject to risks and uncertainties that may cause actual results to differ materially, including required approvals by stockholders, the possibility that the anticipated benefits from the proposed mergers cannot be fully realized, the possibility that costs or difficulties related to integration of the two companies will be greater than expected, the impact of competition and other risk factors included in the reports filed with the SEC by Grey Wolf and Basic Energy Services. Readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of their dates. Except as required by law, neither Grey Wolf nor Basic Energy Services intends to update or revise its forward-looking statements, whether as a result of new information, future events or otherwise.

Additional Information and Where to Find It

In connection with the proposed mergers, a registration statement of Horsepower Holdings, Inc. ("Holdings") has been filed and declared effective by the SEC. Each of Basic Energy Services and Grey Wolf has filed a definitive joint proxy statement/prospectus with the SEC. INVESTORS AND SECURITY HOLDERS ARE URGED TO CAREFULLY READ THE REGISTRATION STATEMENT AND THE JOINT PROXY STATEMENT/PROSPECTUS AND THESE OTHER MATERIALS REGARDING THE PROPOSED TRANSACTION BECAUSE THEY CONTAIN IMPORTANT INFORMATION ABOUT BASIC ENERGY SERVICES, GREY WOLF, HOLDINGS AND THE PROPOSED TRANSACTION. Investors and security holders may obtain a free copy of the registration statement and the joint proxy statement/prospectus and other documents containing information about Basic Energy Services and Grey Wolf, without charge, at the SEC's web site at www.sec.gov, Basic Energy Service's web site at www.basicenergyservices.com, and Grey Wolf's web site at www.gwdrilling.com. Copies of the registration statement and the joint proxy statement/prospectus and the SEC filings that are incorporated by reference therein may also be obtained for free by directing a request to either Investor Relations, Basic Energy Services, Inc., (432) 620-5510 or to Investor Relations, Grey Wolf, Inc., (713) 435-6100.

Participants in the Solicitation

Basic Energy Services and Grey Wolf and their respective directors, officers and certain other members of management may be deemed to be participants in the solicitation of proxies from their respective stockholders in respect of the mergers. Information about these persons can be found in Grey Wolf's proxy statement relating to its 2008 annual meetings of stockholders as filed with the SEC on April 8, 2008. Information concerning beneficial ownership of Basic Energy Services stock by its directors and certain of its executive officers is included in its Annual Report on Form 10-K/A filed April 29, 2008 and subsequent statements of changes in beneficial ownership on file with the SEC. Additional information about the interests of such persons in the solicitation of proxies in respect of the merger are included in the registration statement and the joint proxy statement/prospectus which was filed with the SEC in connection with the proposed transaction.