1. n. [Geology]

An accumulation, pool, or group of pools of hydrocarbons or other mineral resources in the subsurface. A hydrocarbon field consists of a reservoir in a shape that will trap hydrocarbons and that is covered by an impermeable, sealing rock. Typically, the term implies an economic size.

Alternate Form: oil field

See: accumulation,  condensate,  reservoir

2. n. [Geology]

The surface area above a subsurface hydrocarbon accumulation.

Alternate Form: oil field

See: accumulation