Petroleum production in Canada is a major industry which is important to the overall economy of North America. Canada has the third largest oil reserves in the world and is the world's fourth largest oil producer and fourth largest oil exporter. In 2019 it produced an average of 750,000 cubic metres per day (4.7 Mbbl/d) of crude oil and equivalent. Of that amount, 64% was upgraded from unconventional oil sands, and the remainder light crude oil, heavy crude oil and natural-gas condensate. Most of the Canadian petroleum production is exported, approximately 600,000 cubic metres per day (3.8 Mbbl/d) in 2019, with 98% of the exports going to the United States. Canada is by far the largest single source of oil imports to the United States, providing 43% of US crude oil imports in 2015.
The petroleum industry in Canada is also referred to as the "Canadian Oil Patch"; the term refers especially to upstream operations (exploration and production of oil and gas), and to a lesser degree to downstream operations (refining, distribution, and selling of oil and gas products). In 2005, almost 25,000 new oil wells were spudded (drilled) in Canada. Daily, over 100 new wells are spudded in the province of Alberta alone. Although Canada is one of the largest oil producers and exporters in the world, it also imports significant amounts of oil into its eastern provinces since its oil pipelines do not extend all the way across the country and many of its oil refineries cannot handle the types of oil its oil fields produce. In 2017 Canada imported 405,700 bbl/day (barrels per day) and exported 1,115,000 bbl/day of refined petroleum products.
