Big Sky Petroleum Drills the Midboe 4-3 Science Well


VANCOUVER, BRITISH COLUMBIA--(Marketwire - March 20, 2012) - Big Sky Petroleum Corporation (TSX VENTURE:BSP) - The Midboe 4-3 Science Well has been drilled to total depth. The well was drilled to determine the reservoir characteristics of the Bakken and Three Forks formations. The well was intended to determine the prospectiveness of the eastern flank of the Kevin Dome and the information will be included in our revised geological model, which will determine our future geographic area of interest.

The 81-4 Well, located in Glacier County, Montana, is expected to receive permitting approval in Q2. The Company plans to drill a 4,500' pilot hole to test the Middle Bakken. Based upon results of the vertical test, a 3,500' horizontal leg is planned for the Middle Bakken. Frac design, stimulation and completion programs will be concluded after all well data has been processed and evaluated.

The Somont 14-29 Well is still being tested and evaluated. The evaluation from this well will determine the horizontal drilling and completion program for the Somont 15-13 Well, which has been drilled vertically and awaiting completion.

Bill Stelzer, Big Sky's Senior Geologist, has commented that "we continue to be optimistic with our results. We have encountered oil saturated formations in our objective targets and we are awaiting a complete engineering evaluation of the 14-29 horizontal well bore."

About Big Sky

Big Sky is an oil and gas exploration and development company based in Billings, Montana, with its main focus primarily on the exploration and development of oil and gas in the Alberta Basin, commonly referred to as the Bakken source system. Big Sky's operations covers an approximate 100,000 net mineral acres in Toole and Glacier Counties, Montana, of which Big Sky has a 33.33% interest.

Sam Nastat, President

This press release contains "forward-looking information". Such forward-looking statements reflect our current views with respect to future events and are subject to certain risks, uncertainties and assumptions, including, the risks and uncertainties outlined in our most recent financial statements and reports and registration statement filed with the Canadian securities administrators (available at www.sedar.com). Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those anticipated, believed, estimated or expected.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Contact Information:

Big Sky Petroleum Corporation
Sandrine Lam
604-687-3520 or 406-252-5171
604-688-3392 or 406-248-9325 (FAX)
www.bspcorp.com