MARCH 6, 2006 – SAN ANTONIO, TEXAS – Pioneer Drilling Company (AMEX: PDC) today announced that Wm. Stacy Locke, Chief Executive Officer, will be participating in the Raymond James 27th Annual Institutional Investors Conference in Florida on March 5-8, 2006.

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

The Company's presentation at the conference will be webcast live with an accompanying slideshow on Tuesday, March 7 from approximately 3:25 p.m. to 3:55 p.m. Eastern Time. To listen to the live audio webcast and view Pioneer Drilling’s slideshow, visit the Company's website at http://www.pioneerdrlg.com. A replay of this webcast and slideshow will be available on the Company's website shortly after the presentation is concluded and will be archived for replay on the website for a period of 30 days.