30 CFR § 250.741 - How long must I keep records?

---
identifier: "/us/cfr/t30/s250.741"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "30 CFR § 250.741 - How long must I keep records?"
title_number: 30
title_name: "Mineral Resources"
section_number: "250.741"
section_name: "How long must I keep records?"
chapter_name: "BUREAU OF SAFETY AND ENVIRONMENTAL ENFORCEMENT, DEPARTMENT OF THE INTERIOR"
subchapter_number: "B"
subchapter_name: "OFFSHORE"
part_number: "250"
part_name: "OIL AND GAS AND SULPHUR OPERATIONS IN THE OUTER CONTINENTAL SHELF"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "30 U.S.C. 1751, 31 U.S.C. 9701, 33 U.S.C. 1321(j)(1)(C), 43 U.S.C. 1334."
regulatory_source: "76 FR 64462, Oct. 18, 2011, unless otherwise noted."
cfr_part: "250"
---


# 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. |