Exxon Mobil Corporation Competition

It's not necessarily the oil standard, but Exxon Mobil is the world's largest integrated oil company (ahead of Royal Dutch Shell and BP). Exxon Mobil engages in oil and gas exploration, production, supply, transportation, and marketing worldwide. In 2011 it reported proved reserves of 24.9 billion barrels of oil equivalent, including its major holdings in oil sands through Imperial Oil. Exxon Mobil's 36 refineries in 20 countries have a throughput capacity of more than 6.2 million barrels per day. The company supplies refined products to more than 25,000 gas stations in 100 countries. Exxon Mobil is also a major petrochemical producer.