To temporarily or permanently cease production from a well or to cease further drilling operations.

A petroleum industry association that sets standards for oil field equipment and operations.

Any method used to raise oil to the surface after a well ceases to flow.

The legal instrument whereby Oil and Gas Leases are assigned/conveyed.

The person to whom Oil and Gas Leases are assigned.

Person who conveys the Oil and Gas Leases in an Assignment.

An estimate of the costs of drilling and completing a proposed well, which the operator provides to each working interest owner before the well is commenced.

If a well drills through several pay zones and is completed in the deepest productive reservoir, casing is set all the way down to the producing zone. Viewed from (a perspective) inside the borehole, reserves in the shallower pay zones up the hole are behind the casing pipe.

An uncontrolled flow of gas, oil, or other well fluids from the well.

The hole created by the drilling of a well.