oil

1.

"Oil" means petroleum, crude oil, mineral oil and casinghead gas.

Oregon Legislature ¹

See also gross value, gross production
2.

"Oil" means crude petroleum oil and all other hydrocarbons, regardless of gravity, that are produced in liquid form by ordinary production methods, but does not include liquid hydrocarbons that were originally in a gaseous phase in the reservoir.

Oregon Legislature ²

See also gas, pool, owner, protect correlative rights, waste of oil or gas