Oilfield

Part of speech: noun

Definitions

1. An area of land or ocean where petroleum is extracted from underground or subsea deposits through drilling and production operations
2. A geographical location where oil is extracted from the ground or seabed using drilling techniques and production processes
3. A designated region that contains underground reserves of oil, accessed by various methods of drilling and extraction

Etymology: Oilfield is a plain compound, and its history is mostly a matter of dates. "Oil" comes from Old French "oile," from Latin "oleum" (olive oil), and entered English in the 1300s, while "field" is an Old English word that originally meant an open expanse of land, often cleared or cultivated. The combination appeared in the 1800s, when petroleum drilling took off in Pennsylvania and then the American South and West. Early "oil fields" were often literal farmland with derricks standing among the crops. The term grew more specific as the industry did. By the late 1800s it was used for any region with a commercially productive petroleum deposit, and the phrase later extended to offshore areas once drilling moved into the sea in the twentieth century. Some sources give the first clear use of the compound in American newspapers and industry reports of the 1860s and 1870s, but the exact earliest citation is uncertain.

Synonyms: oil reserve, petroleum field