Petro-Canada is an integrated oil and gas company with a portfolio of businesses spanning both the upstream and downstream sectors of the industry. In the upstream businesses, the Company explores for, develops, produces and markets crude oil, natural gas liquids (NGLs) and natural gas in Canada and internationally. The downstream business unit refines crude oil and other feedstock, and markets and distributes petroleum products and related goods and services, primarily in Canada. As of December 31, 2008, its upstream operations consisted of three business units: North American Natural Gas, Oil Sands, and International & Offshore. Downstream operations include two refineries, one in Edmonton and one in Montreal, with a total daily rated capacity of 40,500 cubic meter/day, a lubricants plant that produces lubricant base stocks in Canada, a network of 1,323 retail service stations, national commercial road transport network of 233 locations and a bulk fuel sales channel.