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.