Particle Drilling Technologies, Inc.  



PDTI's proprietary fixed-cutter bit and nozzle system capable of delivering 650 GPM of mud/shot slurry.

PARTICLE DRILLING TECHNOLOGIES ANNOUNCES FISCAL SECOND QUARTER 2008 FINANCIAL RESULTS AND CONFERENCE CALL SCHEDULE

Houston - April 24, 2008 – Particle Drilling Technologies, Inc. (NASDAQ: PDRT) announced today plans to release its fiscal second quarter 2008 financial results on Thursday, May 8, 2008 after the market closes. In conjunction with the release, Particle Drilling Technologies has scheduled a conference call, which will be broadcast live over the Internet on Friday, May 9, 2008 at 10:00 a.m. eastern time (9:00 a.m. central). The Company plans to provide an operations update and a review of the quarterly results.

What: Particle Drilling Technologies, Inc. Fiscal Second Quarter 2008 Conference Call
When: May 9, 2008 - 10:00 a.m. eastern time
Where: Live via phone by dialing 303-262-2139 and asking for the Particle Drilling call at least 10 minutes prior to the start time. Investors may also listen to the conference live on the Particle Drilling website, www.particledrilling.com, on the “Investor Relations” section of the site
A telephonic replay of the conference call will be available through May 16, 2008 and may be accessed by calling 303-590-3000 and using passcode 11113069. A web cast archive will also be available at www.particledrilling.com, on the "Investor Relations" section of the Company's website, shortly after the call and will be accessible for approximately 90 days. For more information, please contact Donna Washburn at DRG&E at 713-529-6600 or email dmw@drg-e.com.

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.

Contacts:
J. Chris Boswell, SVP & CFO
Particle Drilling Technologies, Inc.
713-223-3031 ext. 2085

Ken Dennard, Managing Partner
Jack Lascar, Partner
DRG&E / 713-529-6600