---
kind: "section"
citation: "30 C.F.R. § 250.121"
title: "30"
number: "250.121"
heading: "What happens when the reservoir contains both original gas in place and injected gas?"
url: "https://uscodex.org/cfr/30/250.121"
---

# §250.121. What happens when the reservoir contains both original gas in place and injected gas?


If the reservoir contains both original gas in place and injected gas, when you produce gas from the reservoir you must use a BSEE-approved formula to determine the amounts of injected or stored gas and gas original to the reservoir.


## Notes

### Authority

Authority: 30 U.S.C. 1751, 31 U.S.C. 9701, 33 U.S.C. 1321(j)(1)(C), 43 U.S.C. 1334.

### Source

Source: 76 FR 64462, Oct. 18, 2011, unless otherwise noted.