§250.741 — 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; | 90 days after you complete operations. |
| (b) Casing and liner pressure tests, diverter tests, BOP tests, and real-time monitoring data; | 2 years after the completion of 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 assign the lease and forward the records to the assignee. |