Code of Federal Regulations Title 43. Public Lands:  Interior § 43.3162.7–2 Measurement of oil

All oil removed or sold from a lease, communitized area, or unit participating area must be measured under subpart 3174 of this title. All measurement must be on the lease, communitized area, or unit from which the oil originated and must not be commingled with oil originating from other sources, unless approved by the authorized officer under the provisions of subpart 3173 of this title.