A refinery for petroleum WordNet 3.0 & Open English WordNet

An oil refinery or petroleum refinery is an industrial process plant where petroleum is transformed and refined into useful products such as gasoline, diesel fuel, asphalt base, fuel oils, heating oil, kerosene, liquefied petroleum gas and petroleum naphtha. Wikipedia

A plant where crude petroleum is transformed into fuels, lubricants, and other petroleum-derived products. OmegaWiki

The separation of petroleum mixtures into their component parts. OmegaWiki

An industrial process plant where crude oil is processed and refined into useful petroleum products. Wiktionary

Industrial process plant. Wiktionary (translation)

The industrial process of converting crude oil into petroleum and other useful products. Wiktionary

Process. Wiktionary (translation)