Triangle Petroleum Corporation, an independent energy company, engages in the exploration, development, and production of oil and natural gas properties in the United States. It operates in two segments, Exploration and Production, and Oilfield Services. As of January 31, 2016, the company had leasehold interests in approximately 103,540 net acres in the Bakken Shale and Three Forks formations in the Williston Basin of North Dakota and Montana. It also offers oilfield services, including hydraulic pressure pumping, wireline, perforating, pump rental, workover, and other complementary services, as well as midstream services. The company was formerly known as Peloton Resources Inc. and changed its name to Triangle Petroleum Corporation in May 2005. Triangle Petroleum Corporation was incorporated in 2003 and is headquartered in Denver, Colorado.