---
kind: "section"
citation: "43 C.F.R. § 3935.10"
title: "43"
number: "3935.10"
heading: "Accounting records."
url: "https://uscodex.org/cfr/43/3935.10"
---

# §3935.10. Accounting records.

- (a) Operators or lessees must maintain records that provide an accurate account of, or include all:
  - (1) Oil shale mined;
  - (2) Oil shale put through the processing plant and retort;
  - (3) Mineral products produced and sold;
  - (4) Shale oil products, shale gas, and shale oil by-products sold; and
  - (5) **Shale oil products and by-products that are consumed on-lease for the beneficial use of the lease.**
- (b) The records must include relevant quality analyses of oil shale mined or processed and of all products including synthetic petroleum, shale oil, shale gas, and shale oil by-products sold.
- (c) Production and sale records must be made available for the BLM's examination during regular business hours.

## Notes

### Authority

Authority: 25 U.S.C. 396d and 2107, 30 U.S.C. 241(a), 42 U.S.C. 15927, 43 U.S.C. 1732(b), 1733, and 1740.

### Source

Source: 73 FR 69480, Nov. 18, 2008, unless otherwise noted.