SOURCE: Coastal Energy Company

Coastal Energy Company

April 28, 2011 17:44 ET

Coastal Energy Announces Discovery at Bua Ban North B

HOUSTON, TX--(Marketwire - Apr 28, 2011) - Coastal Energy Company (the "Company" or "Coastal") (TSX-V: CEN) (AIM: CEO) announces the successful results of the Bua Ban North B-01 exploration well.

The Bua Ban North B-01 well was drilled to 7,960 feet TVD and encountered 28 feet of net pay in the Upper Oligocene with 23% average porosity and 29 feet of net pay in the Lower Oligocene with 16% average porosity. Net pay estimates are based on log analysis, shows and MDT analysis; the well has not been flow tested. The Company estimates that this fault block contains a total of 13 million barrels of oil in place across these two intervals.

The B-01 well also encountered good oil shows in three zones in the Miocene; however, this interval was not targeted in this well and the Miocene was not encountered in an optimal structural position. There was also an oil show in the Eocene interval.

The Company has spudded the Bua Ban North B-02 well, which will test two Miocene intervals in an optimal structural position. The B-02 well will also test Oligocene and Eocene targets. Although high gas readings were encountered throughout the Eocene and an oil show was observed, the top of the Eocene reservoir was penetrated at 7170 feet, below our interpreted threshold for development of reservoir quality sands.

Randy Bartley, Chief Executive Officer of Coastal Energy, commented:

"The B-01 well delivered positive results for the Bua Ban North B prospect. We saw good oil shows throughout all of our targeted intervals which support further drilling to test the Miocene and Eocene intervals at this location. The shallow shows continue to support the potential for shallower Miocene and Upper Oligocene targets along the entire western margin of the Songkhla basin. The Eocene interval is predicted to be of reservoir quality at 6,500 feet and shallower; it was encountered in this well at 7,170 feet. We plan to test Eocene targets further up the terrace at shallower depths.

"The drilling results from Bua Ban North continue to be positive. We also remain on target to begin production testing of the multiple discoveries at Bua Ban North A in mid-May."

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 Licensed Professional Geoscientist and a Certified Petroleum Geologist 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

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.

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