The world's first systematic petroleum refinery was built in Ploiești, Romania in 1856 using the abundant oil available in Romania.

Who invented the oil refining?

refining oil was created in the United States, where it continues to be an important part of the nation's economy. Samuel M. Kier, a native of southwestern Pennsylvania, was the first person to refine crude oil. In the mid-1840s, he became aware of crude oil through his salt business.

When did humans start refining oil?

The modern history of petroleum began in the 19th century with the refining of paraffin from crude oil.