Ensign Energy Services Inc., together with its subsidiaries, engages in the provision of oilfield services to the crude oil and natural gas industries in Canada, the United States, and internationally. It offers shallow, intermediate, and deep well drilling, as well as specialized drilling services, including horizontal, underbalanced, horizontal re-entry, and slant drilling for steam assisted gravity drainage applications; and equipment and services. The company provides coring and oil sands drilling services to the mining, and oil and natural gas industries; directional drilling services; equipment rental services; shallow to deep well services, such as completions, abandonments, production workovers, and bottom hole pump changes for oil and natural gas producers; and interactive pressure drilling services with self-contained systems comprising nitrogen generation and compression equipment, and surface control systems. In addition, it rents drill strings, loaders, tanks, pumps, rig mattings, blow-out preventers, waste bins, and wastewater treatment equipment for the drilling and completions segments of the oilfield industry. Further, the company offers transportation and well servicing services. The company operates land drilling rigs, specialty coring rigs, and well servicing rigs. Ensign Energy Services Inc. was incorporated in 1987 and is headquartered in Calgary, Canada.