SAN ANTONIO, Texas,  April 20, 2010 – Pioneer Drilling Company (NYSE Amex: PDC) announced today that it intends to release financial results for the three months ended March 31, 2010, on Thursday, May 6, 2010 before the market opens. In conjunction with the upcoming release, Pioneer has scheduled a conference call for May 6 at 11:00 a.m. Eastern Time (10:00 a.m. Central Time).

What:     Pioneer Drilling’s First Quarter 2010 Earnings Conference Call

When:    Thursday, May 6, at 11:00 a.m. Eastern Time

How:     Live via phone by dialing 480-629-9645 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:   www.pioneerdrlg.com

For those who cannot listen to the live call, a telephone replay will be available through Thursday, May 13, 2010 by calling (303) 590-3030 and using the pass code 4285538 #.  A webcast replay will also be archived for one year in the investor relations section of the Company’s web site at www.pioneerdrlg.com.  For more information, please contact Donna Washburn at DRG^&E at (713) 529-6600 or email dmw@drg-e.com.

About Pioneer Drilling Company

Pioneer Drilling Company provides contract land drilling services to independent and major oil and gas operators in Texas, Louisiana, Oklahoma, Kansas, the Rocky Mountain and Appalachian regions and internationally in Colombia through its Pioneer Drilling Services Division. The Company also provides workover rig, wireline and fishing and rental services to producers in the U.S. Gulf Coast, Mid-Continent, Rocky Mountain and Appalachian regions through its Pioneer Production Services Division.  Its fleet consists of 71 land drilling rigs that drill at depths ranging from 6,000 to 25,000 feet, 74 workover rigs (69 550-horsepower rigs, 4 600-horsepower rigs and 1 400-horsepower rig), 68 wireline units, and fishing and rental tools.