Tengasco Inc

Established in 1948, Adams Resources Exploration Corporation is a part of Adams Resources & Energy. The company specializes in exploration and development of oil and gas properties along the Gulf Coast of Texas and Louisiana. It also undertakes oil field exploration in Europe and has expertise in the area of seismic evaluations. Adams Resources & Energy offers various branded and unbranded refined petroleum products that include motor fuels and lubricants. The company also wholesales and distributes natural gas. The company operates more than 70 tractor-trailer units and maintains over 50 pipeline inventory locations and injection points. The company is located in Houston.

Swan Energy is a market-leading provider of carbon reporting services, assisting businesses in becoming more carbon-conscious by ensuring compliance with energy legislation. With a focus on both mandatory and voluntary regulations, Swan Energy helps organizations navigate the complexities of carbon reporting to achieve their sustainability goals. Generated from their website's infomation

Plains Marketing is a subsidiary of Plains All American Pipeline, a master limited partnership engaged in interstate and intrastate crude oil transportation. The company also gathers, markets and stores crude oil, as well as markets and stores liquefied petroleum gas and other petroleum products. Plains All American Pipeline has a 50 percent ownership in PAA/Vulcan Gas Storage, which develops and operates a variety of natural gas storage facilities. It is one of the largest independent midstream crude oil companies in North America. The company handles more than 3 million barrels per day of physical crude oil through a network of assets throughout the United States and Canada. Plains Marketing maintains a location in Houston.