SAN ANTONIO, TEXAS

– September 11, 2006 – Pioneer Drilling Company (AMEX:PDC)www.pioneerdrlg.com, where a replay will be  announced today that its presentation time at the Raymond James European Investors U.S.

Equity Growth Conference in London, England on Thursday, September 14, 2006 has been changed to 10:40 a.m. UK time, (5:40 a.m. eastern time). The presentation to be made by Mr. Stacy Locke, Pioneer Drilling’s President and Chief Executive Officer, will be broadcast live over the Internet. The live webcast link of the audio presentation and related slides can be accessed by visiting the Company’s website at archived for 30 days.

Pioneer Drilling provides land contract drilling services to independent and major oil and gas operators drilling wells in Texas, Louisiana, Oklahoma and in the Rocky Mountain region. Its fleet consists of 60 land drilling rigs that drill in depth ranges between 6,000 and 18,000 feet.