Question

which country is largest producer of petroleum refining unit​

Answer 1

Answer:

Russia

Russia is also one of the biggest oil producing countries in the world. Rosneft, a state-owned company, is the biggest refiner in the country. The company owns and operates several major refineries in the country.

Answer 2

United States is the largest producer of petroleum in the world with an average of 17.87 which account 18 percent of total production in the world