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Penn Virginia Corporation is an independent oil and gas company primarily engaged in the development, exploration and production of natural gas and oil in various domestic onshore regions including East Texas, the Mid-Continent, Appalachia, Mississippi
US Venture Inc is a Appleton, WI-based company in the Energy and Utilities sector.
Southwestern Energy (also known as SWN, NYSE: SWN) is an oil and natural gas company based in Houston. Texas. Its primary current activity is, according to the company, "current operations being principally focused on development of the unconventional gas reservoir located on the Arkansas side of the Arkoma Basin"
Perfection Oil Co., Inc. is a Dubuque, IA-based company in the Energy and Utilities sector.
For 60 years Mansfield has been creatively solving commercial, industrial, and municipal customers` most demanding energy procurement, supply, and logistics challenges. Today, the company provides energy commodities and related services to 6,000 customers in 18,000 locations across the U.S. and Canada. The company`s expertise covers a broad range of transportation and facilities energy from traditional petroleum products, CNG, renewable fuels, and specialty chemicals to power and natural gas. Mansfield employees are committed to their customers` success, abiding by five core principles - Integrity, Excellence, Conscientiousness, Innovation, and Personal Service. The company is headquartered in Gainesville, GA (just north of Atlanta) with regional operations centers located in Chicago, Dallas, Denver, Houston, Los Angeles, Minneapolis, Bloomington, MN, and Calgary, Alberta Canada.