A performance rating of gasoline in terms of antiknock qualities. The higher the octane number, the greater the antiknock quality; e.g. 94 octane gasoline is superior in antiknock qualities to a gasoline of 84 octane.
A well drilled on the next closest location to the original well.
Term used to describe a mixture of oil and drilling mud.
The amount of crude oil estimated to exist in a reservoir underlying a pool or field area.
The string of casing set on top of, or through the producing formation.
The maximum flow rate of a well with no restriction.
An uncased well bore.