Petroquest Energy, Inc. Appoints Chief Financial Officer And Corporate Communications Officer LAFAYETTE, Louisiana - May 16, 2000 - PetroQuest Energy, Inc. (NASDAQ: PQUE, TSE: PQU) announced today the appointment of Michael O. Aldridge as Senior Vice President and Chief Financial Officer. Mr. Aldridge most recently served as Vice President – Corporate Communications and previously as Vice President – Controller for Ocean Energy, Inc., which he joined in 1992. Prior to joining Ocean Energy, Mr. Aldridge served as Senior Vice President and Chief Financial Officer for Fleet Petroleum Partners from 1991 to 1992. Prior to joining Fleet, Mr. Aldridge accumulated 11 years of experience with Ernst & Young, an international accounting firm. Mr. Aldridge received a B.S. in accounting from Louisiana State University in 1980 and is a Certified Public Accountant. PetroQuest Energy, Inc. also announced today the appointment of Robert R. Brooksher, as Vice President – Corporate Communications. Mr. Brooksher most recently served as Chief Financial Officer of the Company, which he joined in 1996. Mr. Brooksher received a B.S. in Accounting from Louisiana State University in 1973 and is a Certified Public Accountant. PetroQuest Energy, Inc. is an oil and gas exploration and production company primarily focused on growing its reserves and shareholder value through a combination of drilling development locations and high potential exploration prospects along the coast of and in the Gulf of Mexico. This press release includes certain statements that may be deemed to be ?forward-looking statements? within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All statements other than statements of historical facts, included in this press release that address activities, events or developments that the company expects, believes or anticipates will or may occur in the future, including drilling of wells, reserve estimates, future production of oil and gas, future cash flows and other such matters are forward-looking statements. Such forward-looking statements are subject to certain risks, uncertainties and other factors, which could cause actual results to differ materially from those currently anticipated. These factors include, without limitation, uncertainties inherent in estimating proven oil and gas reserves, future rates of production and timing of development expenditures; results of exploratory and development drilling; operating hazards attendant to the oil and gas business; the successful identification, acquisition and development of properties; and changes in the price received for oil and/or gas which may effect results of operations and cash flows. Readers are cautioned that any such statements are not guarantees of future performance and the company can give no assurances that actual results or developments will not differ materially from those projected in the forward-looking statements. Contact: PetroQuest Energy, Inc. Charles Goodson, President Robert R. Brooksher, Chief Financial Officer 337/232-7028 www.petroquest.com