For well drilling up to 3,000 metres in depth, Precision Drilling manufactures and operates Super Single® rigs which feature top drive units, longer range 3 drill pipe, and automated pipe handling capabilities. These rigs are capable of slant drilling, which is done by tilting the rig mast from vertical. Slant drilling is used to drill several wells from one location, saving the time and avoiding the environmental impact associated with setting up a rig in a number of different locations. Slant drilling is ... being used by Precision Drilling with increasing frequency in support of the steam-assisted gravity drainage method of recovering bitumen from oil sands.