Petroquest Resources, Inc. Announces Acquisition of 18 Oil and Gas Wells in Vinton County, Ohio

Thursday, August 3rd 2006

PetroQuest Resources, Inc. (Computer Pink Sheets: PQRJ.PK), announced today that Mountaineer Gas Transmission, Inc., its wholly owned gas and oil production subsidiary, recently acquired 100 percent of the working interest in 18 gas and oil wells in Vinton County, Ohio.

The Company plans to rework all 18 of the recently acquired wells and bring the production from such wells on line. The production from these wells will be fed into a portion of the 215 miles of natural gas pipeline and gathering system owned by Tyr Energy, Inc., another one of PetroQuest Resources, Inc.’s wholly owned subsidiaries. The Company’s Management believes that these 18 wells are ideal candidates for recompletion in uphole production zones.

The Company’s Vinton County, Ohio properties, including these 18 wells, are presently being evaluated by a certified petroleum geologist for their oil and gas production potential.

For more information, please contact Edwin Staples, the Secretary of PetroQuest Resources, Inc., at the address and telephone number shown below:

Mr. Edwin Staples PetroQuest Resources, Inc. 1112 East Copeland Road Suite 420 Arlington, Texas 76011 (440) 368-3558

(817) 795-0154 ”“ Fax

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, including, among others, the potential for additional customer growth from acquired operations and additional opportunities for growth. There are important factors that could cause actual results to differ materially from those expressed or implied by such forward-looking statements, including: general economic business conditions, unfavorable weather conditions, the success of certain cost containment initiatives, changes in regulations or regulatory treatment, availability and the cost of capital, the success of growth initiatives, and other factors discussed in our filings with the Securities and Exchange Commissions. Additionally, this release may not be considered as legal, accounting, or investment advice, and is not, and may not be considered, a solicitation for the purchase of any securities issued by PetroQuest Resources, Inc.