July 9, 2007 – SAN ANTONIO, TEXAS – Pioneer Drilling Company (AMEX: PDC) announced today that it intends to release the financial results for its fiscal first quarter of 2008 on Thursday, August 2, 2007 at 6:00 a.m. eastern time. In conjunction with the upcoming release, Pioneer Drilling has scheduled a conference call, which will be broadcast live over the Internet, on Thursday, August 2, 2007 at 2:00 p.m. eastern time (1:00 p.m. central).

What: Pioneer Drilling’s Fiscal First Quarter 2008 Conference Call

When: Thursday, August 2, 2007 – 2:00 p.m. eastern time

How: Live via phone - By dialing (303) 262-2142 and asking for the Pioneer Drilling call 10 minutes prior to the start time. Or live over the Internet by logging on to the web address below.

Where: http://www.pioneerdrlg.com

For those who cannot listen to the live call, a replay will be available through August 9, 2007, and may be accessed by calling (303) 590-3000 and using the pass code 11093228#. A replay can also be found in the investor relations section of the Company’s web site at www.pioneerdrlg.com, where it will be archived for one year. For more information, please contact Donna Washburn at DRG&E at 713-529-6600 or email dmw@drg-e.com.

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 66 land drilling rigs that drill in depth ranges between 6,000 and 18,000 feet.