CGX Announces 3D Seismic Program for Corentyne PPL

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TORONTO, ONTARIO -- (Marketwire - Dec. 5, 2011) - CGX Energy Inc. (TSX VENTURE: OYL) ("CGX" or the "Company") is pleased to announce that its wholly owned subsidiary, CGX Resources Inc., has awarded a 1,160 square kilometre 3D marine seismic contract to a subsidiary of Petroleum Geo-Services (PGS). PGS's Ramform Challenger will undertake the five week contract commencing mid-December. PGS is a leading geophysical services company founded in 1991 in Norway with offices in 25 countries and regional centres in London, Houston and Singapore. PGS offers a broad range of geophysical services and has 14 offshore seismic vessels.

Stephen Hermeston, President and CEO stated,

"This 3D seismic program has been designed to better image the up-dip limits of the Eagle Deep stratigraphic play at the Turonian and Campanian and to cover the two early Cretaceous, Albian prospects (Crabwood and Kabukalli) which are underlying the Company's 100% owned Corentyne offshore Petroleum Prospecting License (PPL) and for which CGX obtained an independent resources evaluation report from DeGolyer and MacNaughton of Dallas earlier this year that provided a total best estimate (P50) of prospective resources of 325 million barrels of oil. We are enthused about these prospects which CGX plans on pursuing subsequent to the drilling of the Company's Eagle-1 well that will test the Eocene and Maastrichtian trend."


CGX Energy is a Canadian-based oil and gas exploration company focused on the exploration of oil in the Guyana-Suriname Basin, an area that is ranked second in the world for oil and gas prospectivity by the United States Geological Service. CGX is managed by a team of experienced oil and gas and finance professionals from Guyana, Canada, the United States and the United Kingdom.


Forward-Looking Statements:

This news release contains certain "forward-looking information" within the meaning of applicable securities law including statements regarding the expectations for satisfying the drilling requirements of the Corentyne PPL and the Georgetown PPL. Forward looking information is frequently characterized by words such as "plan", "expect", "project", "intend", "believe", "anticipate", "estimate", "may", "will", "would", "potential", "proposed" and other similar words, or statements that certain events or conditions "may" or "will" occur. These statements are only predictions. Forward-looking information is based on the opinions and estimates of management at the date the information is provided, and is subject to a variety of risks and uncertainties and other factors that could cause actual events or results to differ materially from those projected in the forward-looking information. Such risks and uncertainties include, but are not limited to, the risk that the parties to the Georgetown PPL will not be able to satisfy the requirements of the Georgetown PPL prior to the new deadline, the inherent risks involved in the exploration and development of oil and natural gas properties and the possibility of unanticipated costs and expenses. For a description of the risks and uncertainties facing CGX and its business and affairs, readers should refer to CGX's Annual Information Form for the year ended December 31, 2010 and subsequent Management's Discussion and Analysis. CGX undertakes no obligation to update forward-looking statements if circumstances or management's estimates or opinions should change, unless required by law. The reader is cautioned not to place undue reliance on forward-looking statements.

Trading Symbol                    OYL
Shares Outstanding        326,223,663
Fully Diluted             342,698,663

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Contact Information

CGX Energy Inc.
Kerry Sully, Chairman
(604) 733-9647
ksully@cgxenergy.com

CGX Energy Inc.
Stephen Hermeston, President and CEO
(281) 644-0139
shermeston@cgxenergy.com

CGX Energy Inc.
Charlotte May, Communications Manager
(416) 364-3353
cmay@cgxenergy.com
www.cgxenergy.com