TRIANGLE PETROLEUM REPORTS SECOND FISCAL QUARTER2012 FINANCIAL AND OPERATIONAL RESULTS

DENVER – September 8, 2011 – Triangle Petroleum Corporation (AMEX:TPLM) (“Triangle” or “the Company”) today reported its second fiscal quarter 2012 financial and operational results, including its plans to begin drilling in North Dakota’s Bakken Shale in the fourth quarter 2011. Triangle is a high- growth oriented energy company with a current strategic focus on developing the Bakken Shale and Three Forks formations of the Williston Basin in North Dakota and Montana.

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