Precision Drilling Corporation provides oil and natural gas drilling and drilling-related services and products to oil and natural gas exploration and production companies in North America. Its Contract Drilling Services segment offers land drilling, directional drilling, and turnkey drilling services; trucking services for the movement of precision rigs; and procures and distributes oilfield supplies, as well as manufactures, refurbishes, and sells drilling and service rig equipment. As of December 31, 2012, this segment operated 321 land drilling rigs, including 186 in Canada; 127 in the United States; 3 in Saudi Arabia; and 5 in Mexico. The company's Completion and Production Services segment offers service rigs for well completion, workover, abandonment, maintenance, and re-entry preparation services; snubbing units and coil tubing units for pressure control services; camp and catering services; and water system services, as well as is involved in the rental of oilfield surface equipment, wellsite accommodations, small-flow wastewater treatment facilities, power generation equipment, and solids control equipment. As of December 31, 2012, this segment operated 190 well completion and workover service rigs, 19 snubbing units, and 5 coil tubing units in Canada and the United States; 243 wellsite accommodation units in Canada; 61 wellsite accommodation units in the United States; 8 large-flow wastewater treatment units and 6 potable water production units in Canada; and 50 drilling camps and 3 base camps in Canada and 4 drilling camps in the United States, as well as provided approximately 3,800 oilfield rental items including surface storage, small-flow wastewater treatment, power generation, and solids control equipment and solids. Precision Drilling Corporation was founded in 1951 and is headquartered in Calgary, Canada.