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CNX Resources Corporation (NYSE: CNX) is one of the largest independent natural gas exploration, development and production companies, with operations centered in the major shale formations of the Appalachian basin. With the benefit of a more than 150-year legacy and a substantial asset base amassed over many generations, the company deploys an organic growth strategy focused on responsibly developing its resources in order to create long term value for its shareholders, employees and the communities where it operates. As of December 31, 2016, CNX had 6.3 trillion cubic feet equivalent of proved natural gas reserves. The company is a member of the Standard & Poor`s Midcap 400 Index.
Petrochem Field Services Inc is a Humble, TX-based company in the Energy and Utilities sector.
Isfahan Bitumen is a company that specializes in the production and distribution of bitumen. They offer a range of bitumen products and services, including bulk bitumen sales and asphalt production.
Energen Corporation is a diversified energy company with a growing oil and gas acquisition and development company and a strong and stable natural gas utility.
Greystone Masonry is a Andover, MN-based company in the Energy & Utilities sector.