Mesa Exploration Commences Potash Exploration

VANCOUVER, BRITISH COLUMBIA--(Marketwire - July 27, 2011) - Mesa Exploration Corp. (TSX VENTURE:MSA)(PINK SHEETS:MSAJF) ("Mesa") is pleased to announce that the company has commenced an exploration program on the Blawn Mountain and White Mountain potash projects in western Utah.

The exploration program will involve a detailed, systematic ground geophysical survey, geological mapping and reconnaissance, with rock sampling at elevated radiometric readings and mineralization. The projects will be radiometrically surveyed as potash (potassium) emits a distinct signature sufficient for easy detection. Areas found to be of higher potential interest will be systematically surveyed and sampled at a more detailed scale. The primary goal of this exploration program is to define areas of highest priority interest and to identify targets for future detailed follow-up and potential drilling.

About Mesa Exploration

Mesa is developing and exploring a portfolio of mineral properties in the United States where it controls significant land holdings. All projects are within proven mining districts with excellent access and infrastructure. Mesa currently has 14 million shares issued and outstanding, and no debt. For further information please visit our website at www.MesaExploration.com.

ON BEHALF OF THE BOARD MESA EXPLORATION CORP.

Foster Wilson, President and CEO

This news release includes certain statements that may be deemed "forward-looking statements". All statements in this release, other than statements of historical facts, including the likelihood of commercial mining and possible future financings are forward-looking statements. Although the Company believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance and actual results or developments may differ materially from those in the forward-looking statements. Factors that could cause actual results to differ materially from those in forward-looking statements include unsuccessful exploration results, changes in metals prices, changes in the availability of funding for mineral exploration, unanticipated changes in key management personnel and general economic conditions. Mining is an inherently risky business. Accordingly the actual events may differ materially from those projected in the forward-looking statements. For more information on the Company and the risks and challenges of its business, investors should review the Company's annual filings that are available at www.sedar.com.