As of 2015, five of the largest oil companies in the world in terms of revenue are Exxon Mobil, Royal Dutch Shell, BP, Sinopec and China National Petroleum. Each of these companies has an annual revenue of over 300 billi... More » Business & Finance Industries

Comparing the market value of petroleum companies, ExxonMobil, Chevron and PetroChina are the three world's largest oil companies as of 2015. Based on 2014 revenues, the biggest petroleum companies are Sinopec, PetroChin... More » Business & Finance Corporations

The biggest polluters of oil drilling companies are accidental oil spills and workers illegally dumping oil barrels and produced water. "Produced water" is water produced by drilling oil, and it contains arsenic, cadmium... More » Science Environmental Science Pollution
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The three largest oil companies based on annual revenues in 2015 are China’s Sinopec with $433.3 billion, Royal Dutch Shell of United Kingdom with $385.6 billion and Exxon Mobil with $364.8 billion. Others are BP UK with... More » Business & Finance Corporations

Exxon Mobil, Royal Dutch Shell and Chevron are three of the largest oil and gas companies in the world based on total stock market capitalization for 2014, reports Statista. Exxon Mobil’s market cap is $422 billion, Roya... More » Business & Finance Investing

As of 2015, companies on the Fortune Global 500 list include Walmart, Royal Dutch Shell, Exxon Mobil, BP and Toyota Motor. Additional companies include General Motors, Bank of America Corp., Hon Hai Precision Industry, A... More » Business & Finance Corporations

PetroChina, Royal Dutch Shell, ExxonMobil, Saudi Aramco and British Petroleum are some of the top petroleum companies in the world when measured by revenue in U.S. dollars, as of 2014. However, when measured in terms of ... More » Business & Finance Corporations