Best Oil & Gas Companies

Exxon Mobil Corporation is the world's #1 publicly traded oil company, rivaled only by giants like Shell, BP, and Total. Its vast portfolio holds more than 22 billion barrels of oil equivalent of proved reserves, spread across some 15 countries...

Chevron has earned its stripes as the #2 integrated oil company in the US, behind Exxon Mobil. Its global operations explore for and produce oil and oil equivalents, refines them into various fuels and other end products, and sells them through...

Phillips 66 is a leading marketer of gas, aviation fuels, crude oil, and other refined petroleum products, as well as specialty products such as oils, waxes, solvents, and lubricants. It markets in the US under the Phillips 66, Conoco, and 76...

Valero Energy was not only named after a mission (the Mission San Antonio de Valero), it is on a mission to be the largest independent refiner in the US. Valero churns out more than 3 million barrels per day, refining conventional and premium...

Marathon Petroleum is the largest oil refiner in the US. Once part of Marathon Oil Corporation, Marathon Petroleum processed more than 3 million barrels of crude oil a day at more than 15 refineries in the US. It also holds stakes in pipelines...

CITGO Petroleum is the fifth-largest independent refiner in the US. It refines and markets petroleum products, including transportation fuels, lubricants, and petrochemicals. It markets CITGO branded gasoline through about 5,300...

Schlumberger has the know-how to get oil and gas drillers out of a slump. One of the world's largest oilfield services companies with scores of business units, it provides a full range of services, including seismic surveys, formation...

Energy Transfer Operating (ETO) is the main operating subsidiary of diversified energy asset firm Energy Transfer LP. ETO's crude oil segment (about 30% of sales) operates more than 9,500 miles of pipelines that provide crude transportation...

BP is one of the largest oil and gas companies in the world. With proven reserves of approximately 20 million barrels of oil and oil equivalents, BP explores, produces and sells oil and gas, fuels, lubricants, wind power, and biofuels. With...