Particle Drilling Technologies Appoints New Independent Director

Houston - November 15,, 2007 – Particle Drilling Technologies, Inc. (NASDAQ: PDRT) today announced that its Board of Directors has appointed Byron Dunn as an Independent Director. Mr. Dunn has also agreed to serve on the Company’s audit committee effective immediately. Mr. Dunn is filling the vacancy created when Steve Weyel stepped down from the Board of Directors.

Mr. Dunn, age 49, is the Senior Vice President, Corporate Development of Harvest Natural Resources, since September 2005 and previously served on Harvest’s Board of Directors and as a member of its Audit and Compensation committees. Mr. Dunn currently serves also as a member of the Board of Directors of Citizens National Bank. From 2003 through 2005, Mr. Dunn was Vice President, Corporate Development with National Oilwell, Inc. In that capacity, he chaired the National Oilwell/Varco integration team and served as President of Eastern Hemisphere Rig Solutions, and Chairman of the Board of TTS Marine ASA, a Bergen Norway ship equipment manufacturer. From 1997 to 2003, Mr. Dunn held increasingly responsible roles in the UBS Global Energy and Power Group, first serving as Oilfield Service Research Global Sector Coordinator and later as Executive Director in the Investment Banking Group. Earlier in his career, Mr. Dunn was Manager of Upstream Business Development and Acquisitions for Phibro Energy. He began his career with Chevron USA from 1980 until 1984, initially as Drilling Engineer in the Gulf of Mexico and later becoming Eastern Division Production Coordinator for Chevron.

Mr. Dunn is a 1980 graduate of Illinois Institute of Technology with a BS, Chemical Engineering; received his MBA from University of Chicago in 1986, and is a Chartered Financial Analyst

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.