Basically we rely on three sources of crude oil for consumption in Canada: conventional, unconventional (oil sands, off shore oil and shale oil) and imported oil.
Alberta is Canada's major oil producer. Click here for its production statistics.
Conventional and offshore oil is produced from wells. Oil sands are either surface mined or gathered from underground reservoirs. 
Click here to see a simple diagram of a traditional oil well.
Oil Consumption Canada-Wide
In 2010, production consumed 682,210,400 GJ and emitted 55,732,190 GHG tonnes.