Essential Energy Services Ltd. engages in the provision of oilfield services to oil and natural gas exploration and production companies. It operates through the Essential Coil Well Service (ECWS) and Tryton segments. The ECWS segment offers completion, production, and workover services and comprises fleet of coil tubing rigs, fluid and nitrogen pumpers, and ancillary equipment. The Tryton segment includes downhole tools and rental services. The company was founded on February 26, 2010 and is headquartered in Calgary, Canada.