Enservco Corporation, through its subsidiaries, provides hot oiling and acidizing, and frac water heating services to the onshore oil and natural gas industry. It also water hauling and well site construction services. The company owns and operates specialized trucks, trailers, frac tanks, and other well-site related equipment. It operates in the DJ Basin/Niobrara area in Colorado and Wyoming; the San Juan Basin in northwestern New Mexico; the Marcellus and Utica Shale areas in Pennsylvania and Ohio; the Jonah area, Green River and Powder River Basins in Wyoming; and the Eagle Ford Shale and East Texas Oilfield in Texas. The company was incorporated in 1980 and is headquartered in Longmont, Colorado.