MAY 28, 2003 – SAN ANTONIO, TEXAS – Pioneer Drilling Company (AMEX: PDC) will release fiscal fourth quarter results for the year ended March 31, 2003, on Tuesday, June 3, 2003 at 6:00 a.m. eastern time. In conjunction with the release, Pioneer Drilling has scheduled a conference call, which will be broadcast live over the Internet, on Tuesday, June 3, 2003 at 11:00 a.m. eastern time (10:00 a.m. central).

What: Pioneer Drilling Fiscal Fourth Quarter 2003 Conference Call

When: Tuesday, June 3, 2003 - 11:00 a.m. eastern time

How: Live via phone - By dialing (303) 262-2130 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 June 10, 2003, and may be accessed by calling (303) 590-3000 using pass code 539483. Also, an archive of the webcast will be available shortly after the call on www.pioneerdrlg.com. For more information, please contact Karen Roan at DRG&E at 713-529-6600 or email kroan@drg-e.com.

Pioneer Drilling Company provides contract land drilling services to independent and major oil and gas operators drilling wells in central, south and east Texas. The Company’s fleet currently consists of 25 land drilling rigs that drill in depth ranges between 10,000-18,000 feet, with an additional Cabot 1200 rig expected to be delivered in the Summer of 2003.

CONTACT:
Wm. Stacy Locke, President & CFO
Pioneer Drilling Company
(210) 828-7689

Ken Dennard / kdennard@drg-e.com

Lisa Elliott / lelliott@drg-e.com

DRG &E
(713) 529-6600