oil refinery
A facility where crude oil is processed into petroleum products.
There is a large oil refinery in this area.
Crude oil is refined at this oil refinery.
An explosion occurred at the oil refinery last night.
The government announced plans to build a new oil refinery in this region.
Compound of 製油 (せいゆ, 'oil refining') + 所 (しょ, 'place').