Enservco Corporation, through its subsidiaries, provides hot oiling and acidizing, and frac water heating services to the onshore oil and natural gas industry in the United States. It operates in two segments, Production Services and Completion and Other Services. The company also offers pressure testing and hauling services, as well as water hauling and well site construction services. In addition, it owns and operates a fleet of specialized trucks, trailers, frac tanks, and other well-site related equipment. It operates in the Denver-Julesburg 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. Enservco Corporation is headquartered in Longmont, Colorado.