PARTICLE DRILLING TECHNOLOGIES TO PRESENT AT THE ENERGY CAPITAL INVESTMENT SYMPOSIUM IN HOUSTON

Houston - June 4, 2008 – Particle Drilling Technologies, Inc. (NASDAQ: PDRT) today announced that its management will be presenting at the Energy Capital Investment Symposium in Houston, Texas on June 11, 2008.

Jim B. Terry, Particle Drilling’s President and Chief Executive Officer, is scheduled to present on Wednesday, June 11, 2008 at 10:55 am Central Time. The presentation will be broadcast live over the Internet and is expected to last approximately twenty minutes. The webcast link will be available on the Company’s website at www.particledrilling.com. A replay of the presentation will be archived on the website shortly after the presentation is concluded.

About Particle Drilling Technologies, Inc.
Particle Drilling Technologies, Inc. (NASDAQ: PDRT) is a development-stage oilfield service and technology company commercializing its patented and patent-pending Particle Impact Drilling system. The company’s technology is designed to enhance the rate-of-penetration function in the drilling process, particularly in hard-rock environments. It is headquartered in Houston, Texas. For more information, visit: www.particledrilling.com.