Refinery companies

ONGC (Oil and Natural Gas Corporation) is an energy holding company that specializes in the exploration, development, and production of oil and gas.

Marathon Petroleum Corporation (MPC) is an energy company focused on petroleum refining, midstream logistics, and marketing of refined products.

Valero Energy is a manufacturer and marketer of transportation fuels and petrochemical products.

Viva Energy Group is a manufacturer and distributor of petroleum products.

Cenovus Energy is an oil company that provides oil sands projects which use specialized methods to drill and pump oil.

HF Sinclair (formerly known as HollyFrontier) is an energy company.

PBF Energy is an independent petroleum refiner and supplier of unbranded transportation fuels, heating oil, petrochemical feedstocks, lubricants, and more.

Suedzucker is a company engaged in the processing of agricultural raw materials.

Gazprom Neft (ПАО "ГАЗПРОМ НЕФТЬ") is a company that engages in the exploration, development, production, and sale of crude oil and gas.

Shell (formerly known as Royal Dutch Shell) is an energy company specializing in the exploration, production, refining, and marketing of oil and natural gas and the manufacturing and marketing of chemicals.

Hindalco Industries is a company that manufactures and distributes aluminium and copper.

IndianOil (Indian Oil Corporation, IOCL) is an integrated and diversified energy company.