ClearStream Energy Services Inc. provides upstream, midstream, and downstream production services in Canada and the United States. The company operates through Maintenance and Construction Services, and Wear Technology Overlay Services segments. The Maintenance and Construction Services segment provides operational, maintenance, welding, fabrication, machining, construction, and turnaround services to the conventional oil and gas, oilsands, and other industries, as well as abandonment, decommissioning, and reclamation services. This segment also offers resource/labour supply services to Canadian energy companies, as well as heavy equipment operators. The Wear Technology Overlay Services segment specializes in the supply and fabrication of overlay pipe spools, pipe bends, and wear plates and vessels for corrosion and abrasion resistant applications in various end markets. The company also provides regulatory and environmental advisory services; and electrical and instrumentation services. It serves oil and gas, energy, mining, agriculture, pulp and paper, petrochemical, and water treatment industries. The company was formerly known as Tuckamore Capital Management Inc. and changed its name to ClearStream Energy Services Inc. in October 2016. ClearStream Energy Services Inc. was founded in 1967 and is headquartered in Calgary, Canada.