Coastal Energy Company Successful Appraisal Well at Songkhla A (8660L)

TIDMCEO

RNS Number : 8660L

Coastal Energy Company

10 September 2012

TSX: CEN September 10, 2012

AIM: CEO

Coastal Energy Announces Successful Appraisal Well at Songkhla A

Coastal Energy Company (the "Company" or "Coastal") (TSX: CEN) (AIM: CEO) announces the successful results of the Songkhla A-10 well.

The Songkhla A-10 well was drilled to a depth of 7,400 feet TVD and encountered 213 feet of net pay in the Lower Oligocene with 20% porosity. The gross oil column in the well was approximately 550 feet thick. The A-10 well was drilled into the same fault block as the A-12ST#1, which is the easternmost fault block at Songkhla A. The A-12ST#1 originally tested at 3,500 bopd with 105 feet of net pay.

Randy Bartley, President & Chief Executive Officer, commented:

"The A-10 well result is outstanding. This well encountered a record amount of net pay for the Songkhla basin with some of the best reservoir characteristics we've seen in the Lower Oligocene interval. We estimate that this doubles the volumetric estimates for this particular fault block. Production will be tied in from this well shortly. The next well will test the fault block immediately to the north and, if successful, could warrant an additional production facility in this location to develop these two fault blocks."

Randy Bartley, President and Chief Executive Officer of the Company and a member of the Society of Petroleum Engineering and Jerry Moon, Vice President, Technical & Business Development, a member of the American Association of Petroleum Geologists, a Certified Petroleum Geologist and a Licensed Professional Geoscientist in the state of Texas, have reviewed the contents of this announcement.

Additional information, including the Company's complete competent person's report may be found on the Company's website at www.CoastalEnergy.comor may be found in documents filed on SEDAR at www.sedar.com.

This statement contains 'forward-looking statements' as defined by the applicable securities legislation. Statements relating to current and future drilling results, existence and recoverability of potential hydrocarbon reserves, production amounts or revenues, forward capital expenditures, operation costs, oil and gas price forecasts and similar matters are based on current data and information and should be viewed as forward-looking statements. Such statements are not guarantees of future results and are subject to risks and uncertainties beyond Coastal Energy's control. Actual results may differ substantially from the forward-looking statements.

Enquiries:

Coastal Energy Company

Email: investor@CoastalEnergy.com +1 (713) 877-6793

Strand Hanson Limited (Nominated Adviser) +44 (0) 20 7409 3494

Rory Murphy / Paul Cocker

Macquarie Capital (Europe) Limited (Broker) +44 (0) 20 3037 2000

Paul Connolly / Jeffrey Auld

FirstEnergy Capital LLP(Broker)

Hugh Sanderson / Travis Inlow +44 (0) 20 7448 0200

Buchanan

Tim Thompson / Ben Romney +44 (0) 20 7466 5000

This information is provided by RNS