Patterson-UTI Energy to Present on October 6, 2009 at the Johnson Rice Energy Conference

Patterson-UTI Energy to Present on October 6, 2009 at the Johnson Rice Energy
Conference

HOUSTON, Oct. 5 /PRNewswire-FirstCall/ -- PATTERSON-UTI ENERGY, INC. (Nasdaq:
PTEN) today announced that it will make a presentation on October 6, 2009 at
the Johnson Rice Energy Conference in New Orleans. Representing the Company
at the conference will be Douglas J. Wall, President and Chief Executive
Officer, and John E. Vollmer III, Chief Financial Officer.

The presentation will be webcast live beginning at approximately 2:45 p.m.
Central Time on October 6, 2009. To access the webcast, go to
www.patenergy.com approximately 10 minutes prior to the scheduled start time.
Replay of the webcast will be available through October 20, 2009 at
www.patenergy.com.

About Patterson-UTI
Patterson-UTI Energy, Inc. provides onshore contract drilling services to
exploration and production companies in North America. The Company has
approximately 350 marketable land-based drilling rigs that operate primarily
in the oil and natural gas producing regions of Texas, New Mexico, Oklahoma,
Arkansas, Louisiana, Mississippi, Alabama, Colorado, Arizona, Utah, Wyoming,
Montana, North Dakota, South Dakota, Pennsylvania, West Virginia and western
Canada. Patterson-UTI Energy, Inc. is also engaged in the businesses of
pressure pumping services and drilling and completion fluid services.

SOURCE Patterson-UTI Energy, Inc.

John E. Vollmer III, Chief Financial Officer of Patterson-UTI Energy, Inc.,
+1-281-765-7100