Sinopec (China)

China’s Sinopec Group is one of the most profitable energy and chemical enterprises in the world. It focuses on the exploration of oil and gas fields, processing and imports of commodities, as well as finished petroleum products. Sinopec is also engaged in the production of a variety of chemical products. The company's annual revenue is estimated at $432.54 billion.

Royal Dutch Shell (UK, Netherlands)

This oil giant appeared after a merger of Dutch and British oil companies. According to Forbes Global 2000, it takes the top spot in the ranking of the world's leading public joint-stock companies. The company specializes in the exploration of oil and gas fields, processing and imports of hydrocarbons. At the same time, the extraction of oil and gas is carried out in more than 80 countries around the world. Its annual revenue reaches $382.97 billion.

Saudi Aramco (Saudi Arabia)

Saudi Aramco, the state-owned company, controls almost all of Saudi Arabia's oil reserves (99%). It accounts for about 1/4 of the global volume of oil. Apart from that, the company has branches and subsidiaries in most countries of Asia, the United States, and the United Arab Emirates. At the end of 2019, Saudi Aramco was recognized as the absolute world leader in terms of market capitalization (about $2 trillion). Its annual revenue is $356 billion.

PetroChina (China)

PetroChina is another major market player in the oil and gas industry in China and around the world. It owns 29 processing and petrochemical plants. PetroChina's total oil and natural gas reserves reach 7.64 billion barrels and 2.165 trillion cubic meters respectively. The company's annual revenue amounts to $347.76 billion.

British Petroleum, ВР (UK)

Experts consider British Petroleum an energy giant operating in all branches of the oil and gas industry. The company's activity also includes innovative energy, in particular the development of renewable energy sources. Currently, BP owns a network of oil and gas fields located in the United States, Argentina, Australia, Egypt, Iraq, and other countries. Its annual income is estimated at $296,97 billion.

ExxonMobil (US)

According to data provided for 2019, US-based oil and gas company ExxonMobil was recognized as the world's second-largest company by market capitalization ($330 billion). ExxonMobil has approximately 24.2 billion oil-equivalent barrels. What is more, ExxonMobil has stakes in 21 refineries in Asian and European countries. The total capacity of these refineries reaches 4.7 million barrels per day. Its annual revenue is $275.54 billion.

Total (France)

Total is another powerful and highly profitable company in the oil market. In comparison with ExxonMobil, its oil reserves are smaller (about 11 billion oil-equivalent barrels) but it is superior to its rival in other ways. Total is involved in the production and processing of gas and oil in 130 countries around the world. Additionally, the company is actively working on developing renewable sources of energy. Total's annual revenue is $185.98 billion.

Chevron (US)

Chevron is one of the largest players in the global commodity market. The company is engaged in the development of a number of gas and oil fields in the United States and other countries. The total volume of proved hydrocarbon reserves reaches 12.1 billion barrels of oil equivalent. Chevron has a market cap of $221.8 billion and annual revenue of $157.21 billion.

Rosneft (Russia)

Analysts consider Rosneft whose market cap amounts to $67.9 billion to be the leader of the Russian oil and gas market. The company focuses on the exploration and production of oil and gas in different regions of Russia. Over the past few years, the company has been actively investigating new territories, including the Arctic shelf as it has great potential for the global market. In 2019, Rosneft's daily production totaled 5.81 million barrels of oil equivalent. Its annual revenue is estimated at $132.73 billion.

Gazprom (Russia)

Global energy company Gazprom is another key player in the Russian oil market. It is involved in many activities connected with the commodity market, e.g. oil fields exploration, exports of finished products and oil around the world. Gazprom owns the world's first offshore stationary oil rig in the Arctic. Among large Russian companies, Gazprom ranks second in terms of capitalization (4.46 trillion rubles). The oil and gas giant's hydrocarbon reserves amount to 176.1 barrels of oil equivalent and its annual revenue is $129.41 billion.