Enservco Corporation provides a range of oilfield services through its various operating subsidiaries, including hot oiling, acidizing, frac water heating, and related services in domestic oil and gas basins across the United States. Its segments include Production Services, and Completion and Other Services. The Production Services segment utilizes a fleet of hot oiling trucks and acidizing units to provide maintenance services to the domestic oil and gas industry. These services include hot oiling services and acidizing services. The Completion and Other Services segment utilizes a fleet of specialized heating units to provide frac water heating services and related support services to the domestic oil and gas industry. These services also include other services for other industries, which includes hauling and transport of materials and heat treating for customers. It also focuses on hot shot trucking, freight services, and less-than-truckload services within the oil and gas sector.