Patterson-UTI Energy, Inc. Announces Earnings Conference Call and Webc

    Business Editors

    SNYDER, Texas--(BUSINESS WIRE)--Jan. 12, 2005--Patterson-UTI Energy, Inc. (Nasdaq:PTEN) will hold its conference call to discuss fourth quarter results on Thursday, February 17, 2005, at 10:00 a.m. Eastern Time (9:00 a.m. Central Time and 7:00 a.m. Pacific Time).
    This call is being webcast and can be accessed through Patterson-UTI's web site at www.patenergy.com or at www.streetevents.com in the Individual Investor Center. Webcast participants should go to one of the web addresses above 10-15 minutes prior to the scheduled start time. Replay of the conference call webcast will be available at these sites through Thursday, March 3, 2005.

    Patterson-UTI Energy, Inc. provides onshore contract drilling services to exploration and production companies in North America. Patterson-UTI owns 361 land-based drilling rigs that operate primarily in the oil and natural gas producing regions of Texas, New Mexico, Oklahoma, Louisiana, Mississippi, Colorado, Utah, Wyoming and western Canada. Patterson-UTI Energy, Inc. is also engaged in the businesses of pressure pumping services and drilling and completion fluid services. Additionally, the Company has an exploration and production business that is based in Texas.

--30--BM/cg*

CONTACT: Patterson-UTI Energy, Inc. John E. Vollmer III, 214-360-7800 investrelations@patenergy.com or Jeff Lloyd (Media), 310-788-2850 jeff_lloyd@sitrick.com

KEYWORD: TEXAS INDUSTRY KEYWORD: OIL/GAS ENERGY UTILITIES EARNINGS CONFERENCE CALLS SOURCE: Patterson-UTI Energy, Inc.

Copyright Business Wire 2005