Patterson-UTI Drilling Activity For June 2015 - 122 Rigs In US, 2 In Canada

PATTERSON-UTI ENERGY, INC. PTEN today reported that for the month of June 2015, the Company had an average of 112 drilling rigs operating in the United States and one rig in Canada. For the three months ended June 30, 2015, the Company had an average of 122 drilling rigs operating in the United States and two rigs in Canada. Average drilling rigs operating reported in the Company's monthly announcements represent the average number of the Company's drilling rigs that were operating under a drilling contract. The Company cautioned that numerous factors in addition to average drilling rigs operating can impact the Company's operating results and that a particular trend in the number of drilling rigs operating may or may not indicate a trend in or be indicative of the Company's financial performance. The Company intends to continue providing monthly updates on drilling rigs operating shortly after the end of each month.