Patterson-UTI Announces Passing of Director

                 Patterson-UTI Announces Passing of Director

PR Newswire

HOUSTON, April 23, 2013

PTEN) today regretfully announced the passing of Kenneth R. Peak, a member of
the Company's Board of Directors. The Company wishes to extend its deepest
condolences to the family, friends and colleagues of Mr. Peak.

Mark S. Siegel, Chairman of Patterson-UTI, stated, "It is with great sadness
that we mourn the passing of Ken Peak. Ken was an accomplished businessman
and a board member, who brought valuable insight to the Company. Ken had real
E&P knowledge, a keen financial mind, a real-life practical approach to
problem solving, and a wonderful sense of humor. He was a respected
contributor to our Board, and he will be greatly missed."

Mr. Peak has served as a director of Patterson-UTI since November 2000. Mr.
Peak entered the energy industry in 1972 and held various financial and
executive positions in the oil and gas industry prior to forming Contango Oil
& Gas Company in 1999.

About Patterson-UTI

Patterson-UTI Energy, Inc. subsidiaries provide onshore contract drilling and
pressure pumping services to exploration and production companies in North
America. Patterson-UTI Drilling Company LLC and its subsidiaries have more
than 300 marketable land-based drilling rigs and operate primarily in oil and
natural gas producing regions in the continental United States, Alaska, and
western and northern Canada. Universal Pressure Pumping, Inc. and Universal
Well Services, Inc. provide pressure pumping services primarily in Texas and
the Appalachian region.

Location information about the Company's drilling rigs and their individual
inventories is available through the Company's website at

Statements made in this press release which state the Company's or
management's intentions, beliefs, expectations or predictions for the future
are forward-looking statements. It is important to note that actual results
could differ materially from those discussed in such forward-looking
statements. Important factors that could cause actual results to differ
materially include, but are not limited to, deterioration of global economic
conditions, declines in customer spending and in oil and natural gas prices
that could adversely affect demand for the Company's services, and their
associated effect on rates, utilization, margins and planned capital
expenditures, excess availability of land drilling rigs and pressure pumping
equipment, including as a result of reactivation or construction, adverse
industry conditions, adverse credit and equity market conditions, difficulty
in integrating acquisitions, shortages of labor, equipment, supplies and
materials, supplier issues, weather, loss of key customers, liabilities from
operations, changes in technology and efficiencies, governmental regulation
and ability to retain management and field personnel. Additional information
concerning factors that could cause actual results to differ materially from
those in the forward-looking statements is contained from time to time in the
Company's SEC filings, which may be obtained by contacting the Company or the
SEC. These filings are also available through the Company's web site at or through the SEC's Electronic Data Gathering and
Analysis Retrieval System (EDGAR) at We undertake no
obligation to publicly update or revise any forward-looking statement.


Contact: Mike Drickamer, Director, Investor Relations, Patterson-UTI Energy,
Inc., +1-281-765-7170
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