SOURCE: Portrush Petroleum Corporation

March 29, 2006 19:44 ET

Portrush Announces Reserves From Scanio-Shelton #6

VANCOUVER, BC -- (MARKET WIRE) -- March 29, 2006 -- Portrush Petroleum Corporation (TSX-V: PSH) (OTC BB: PRRPF) (http://www.portrushpetroleum.com) wishes to announce that a preliminary evaluation of reserves discovered at Scanio-Shelton #6 is now complete.

Proven producing gas reserves have been calculated at 5 BCF and associate condensate reserves at approximately 200,000 barrels. In addition, proven behind pipe reserves have been calculated to be 4.5BCF.

The well has been placed on production at a rate of two and a half million cubic feet of gas and one hundred and fourteen barrels of condensate a day.

The well commenced production on March 13th and it is anticipated that for the month of March the entire lease at Mission River will produce approximately sixty million cubic feet of gas and approximately three thousand barrels of condensate. Btu adjustment on the gas is 11.44%.

The existing production equipment has been upgraded to deal with the larger production volumes and the much higher flowing tubing pressure. This work is now complete.

The Mission River lease is being developed by McAlester and is located at the south end of the town of Refugio, Refugio County, Texas. The field has multiple pays at depths ranging from 2,000 to 8,800 feet. Portrush has a 10% working interest in the field. To date seven wells have been drilled and all seven wells have been placed on production.

A discussion between the operator and the drilling contractor on follow up drilling on the lease is underway. An announcement on the number of wells to be drilled and the timing of this drilling will be made in due course.

The Company continues to evaluate a number of other projects and developments. A decision on these projects will be made in the coming weeks.

For all future Portrush investor relations needs, investors are asked to visit the Portrush IR Hub at http://www.agoracom.com/IR/Portrush where they can post questions and receive answers within the same day, or simply review questions and answers posted by other investors. Alternatively, investors are able to e-mail all questions and correspondence to PSH@agoracom.com where they can also request addition to the investor e-mail list to receive all future press releases and updates in real time.

About Portrush Petroleum Corporation:

To find out more about Portrush Petroleum Corporation visit our website at www.portrushpetroleum.com or visit our Investor Relations site at http://www.agoracom.com/IR/Portrush

The statements made in this Press Release may contain forward-looking statements that may involve a number of risks and uncertainties. Actual events or results could differ materially from the Company's expectations and projections.

ON BEHALF OF THE BOARD
Mr. Martin Cotter, President & Director
The TSX Venture Exchange has not reviewed and does not accept responsibility for the adequacy or accuracy of this release.

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