PetroQuest Energy, Inc. Invites You to Join Its First Quarter 2006 Earnings Conference Call Thursday April 20, 12:08 pm ET LAFAYETTE, La., April 20 /PRNewswire-FirstCall/ -- In conjunction with PetroQuest Energy's (NYSE: PQ - News) release of its first quarter 2006 financial results, you are invited to listen to its conference call with management that will be broadcast live over the Internet on Thursday, May 4, 2006 at 9:30 a.m. Eastern time. The Company will release its results before the market opens on May 4. What: PetroQuest Energy First Quarter 2006 Financial Results When: Thursday, May 4, 2006 at 9:30 a.m. Eastern time Where: http://www.petroquest.com How: Live and rebroadcast over the Internet: Simply log on to the web at the address above. Contact: Todd Zehnder, Vice President-Corporate Communications Replay: Two weeks at http://www.petroquest.com and 48 hours at 800-642-1687, pass code 8326569 PetroQuest Energy, Inc. is an independent energy company engaged in the exploration, development, acquisition and production of oil and natural gas reserves in the Arkoma Basin, East Texas, South Louisiana and the shallow waters of the Gulf of Mexico. This press release contains "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. These forward-looking statements are subject to certain risks, trends and uncertainties that could cause actual results to differ materially from those projected. Among those risks, trends and uncertainties are our estimate of the sufficiency of our existing capital sources, our ability to raise additional capital to fund cash requirements for future operations, the uncertainties involved in estimating quantities of proved oil and natural gas reserves, in prospect development and property acquisitions and in projecting future rates of production, the timing of development expenditures and drilling of wells, and the operating hazards attendant to the oil and gas business. In particular, careful consideration should be given to cautionary statements made in the various reports PetroQuest has filed with the Securities and Exchange Commission. PetroQuest undertakes no duty to update or revise these forward-looking statements. Source: PetroQuest Energy, Inc.

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