250.467—How long must I keep records?

You must keep records for the time periods shown in the following table.

You must keep records relating to	Until
(a) Drilling	Ninety days after you complete drilling operations.
(b) Casing and liner pressure tests, diverter tests, and BOP tests	Two years after the completion of drilling operations.
(c) Completion of a well or of any workover activity that materially alters the completion configuration or affects a hydrocarbon-bearing zone	You permanently plug and abandon the well or until you forward the records with a lease assignment.

Code of Federal Regulations

[68 FR 8423, Feb. 20, 2003]