Ranker provides a list of the largest and most profitable oil and gas drilling companies. As of 2015, the Bronco Drilling Company and China National Offshore Oil rank first and second on the list.Continue Reading
The China National Offshore Oil Corporation focuses on drilling for natural gas and oil off the shores of China. The government of China owns the company and it ranks as the third largest oil company in China. Third on the list is the China Petrochemical Corporation. The company is the largest oil refining company in Asia and generates over $1 trillion in Chinese Yuan annually.
OilPrice.com is a website that focuses on the overall state of the oil industry. As of 2015, the website states that the five biggest oil companies overall include Saudi Aramco, Royal Dutch Shell, Exxon Mobil, PetroChina and British Petroleum. The companies are the most profitable in the oil industry and focus their attention on exploration, mass production and drilling. The companies generate anywhere from $350 billion to $400 billion dollars annually with profit margins ranging from 1 to 8 percent annually. The industry refer to the companies as ‘supermajors’ and drive the oil industry, including the major drilling companies like China National Offshore Oil and the China Petrochemical Corporation.Learn more about Corporations