Hyperdynamics Announces Results of Independent Resource Evaluation of Offshore Republic of Guinea Concession

Hyperdynamics Corporation (NYSE Amex: HDY) today announced the results of a resource evaluation conducted by Netherland Sewell and Associates Inc. (NSAI) of the Company's oil and gas concession offshore Republic of Guinea.

NSAI, a leading provider of reserve audits and exploration resource assessments, conducted a three-month assessment of the prospective oil resources in selected prospects in Hyperdynamics' concession offshore Guinea that resulted in a total of "Best Estimates" for all assessed prospects and leads of 2.3 billion barrels of recoverable unrisked prospective oil resources.

Tethys Petroleum Limited: Kazakhstan Drilling Update

Tethys Petroleum Limited ("Tethys" or the "Company") (TSX: TPL) today gave a brief update on its operations in Kazakhstan focused on its oil exploration and appraisal program.

The AKD03 (Dione) exploration well is currently at a depth of 2,823 metres (in what is interpreted to be the middle Jurassic sequence) and casing has been run. Hydrocarbons have been indicated from drilling and log data in three zones and a testing programme is planned for the near future. Once this testing programme has been carried out the well will be drilled deeper into the Triassic sequence.

The G6RE (Dodone) well has now been drilled to a depth of 2,835 metres in order to test a deeper potential oil bearing zone identified from the wireline logs in the original G6 hole. The hole is currently being prepared to run casing but differential sticking in the bottom section probably caused by higher formation pressures and permeable zones has slowed down the process. Once casing has been run, preparations for testing can commence.

Cladhan Appraisal Well Confirms Excellent Think Oil Bearing Channel Sand Resevoir

Sterling Resources Ltd. (TSX-V:SLG) ("Sterling" or the "Company") is pleased to announce the successful drilling of the Cladhan sidetrack well located on Block 210/29a in the United Kingdom North Sea, some 225 miles north east of Aberdeen, Scotland, in 536 feet water depth. Sterling holds a 39.9% interest and is the operator of the License P1064. Partners are Wintershall (UK North Sea) Ltd 33.5%, Encore Petroleum Ltd 16.6% and Dyas UK Ltd 10%. The original discovery well 210/29a-4 was drilled in November 2008 to a depth of 9,734 feet and discovered oil bearing sands in an Upper Jurassic stratigraphic trap.

Reservoir delineation activities started earlier this month by re-entering the well and sidetracking to an updip location approximately 3,150 feet from the discovery well. The sidetrack was drilled to a total depth of 11,215 feet, encountering a gross hydrocarbon column of 159 feet with 102 feet of net hydrocarbon bearing sandstones compared to the discovery well, which had 31 feet of net pay with 36 degrees API oil.

Canacol Energy Ltd Tests Total of 12,847 BOPD From 3 Separate Zones in the Rancho Hermoso 6 Well in Colombia

Canacol Energy Ltd. ("Canacol" or the "Corporation") (TSX VENTURE:CNE)(BVC:CNEC) is pleased to provide an update of its development drilling program at its Rancho Hermoso Field, a field under commercial production, located in the Llanos Basin of Colombia, which is operated under a Participation Contract with Ecopetrol. The Corporation has completed flow testing of the Los Cuervos - Barco reservoir in the recently drilled Rancho Hermoso 6 ("RH 6") well, the first of five development wells planned for 2010. The RH 6 well encountered 115 feet ("ft") of net oil pay within 5 different reservoir intervals, which include, from top to bottom, the C7, Mirador, Los Cuervos - Barco, Guadalupe, and Ubaque. Three of the five reservoirs, the Ubaque, the Guadalupe, and the Los Cuervos - Barco, were flowed tested separately. On August 16, 2010, the Corporation announced that it had tested a gross rate of 3,340 barrels of oil per day ("bopd") from the Ubaque reservoir, and on August 23, 2010, the Corporation announced that it had tested 3,302 bopd from the overlying Guadalupe reservoir.