Calfrac Well Services Ltd. is an independent provider of specialized oilfield services in North America and Argentina, including hydraulic fracturing, coiled tubing, cementing and other well stimulation services. Its North America segment provides fracturing services to oil and natural gas companies operating in the Williston Basin located in North Dakota and the broader Rockies region. Its Argentinean segment provides fracturing, coiled tubing and cementing services to oil and natural gas companies operating in the Neuquen, Las Heras, and Comodoro Rivadavia regions. It provides solutions for fresh and high TDS brine applications, support for high viscosity friction reducer fracture fluid systems, along with all traditional industry applications of gel based, crosslink and energized fracturing needs. Its coiled tubing service line offers capability in coiled tubing completions and interventions. It offers primary and remedial cementing services in a variety of wells.