LEASES · O-10-46940 · OIL · DISTRICT 08
Big Chief
No volume since Feb 2016COG Operating LLC · Reeves County · Lookski (Bell Canyon) field
Big Chief is an RRC oil lease (O-10-46940) in Reeves County operated by Cog Operating LLC, with one well completed on it.
It has reported 2.74K barrels of oil and 10.9K mcf of gas since March 2015, last reporting volume in February 2016 (statewide data runs through April 2026).
No volume was reported in the last 12 months; the last was in February 2016.
- 2.74K
- bbl oil, all reported
- 10.9K
- mcf gas incl. casinghead
- 0
- bbl oil, last 12 reported
- —
- vs the 12 before
- 1
- wells completed on it
- 585
- peak month, bbl (May 2015)
PDQ LEASE REPORTS · FIRST MAR 2015 · LAST VOLUME FEB 2016 · STATEWIDE DATA THROUGH APR 2026
Oil by month
Barrels reported on Form PR for the whole lease. The latest months are revised upward as late reports arrive.
Last 12 months 0 · prior 12 0
Gas by month
Gas-well gas plus casinghead gas, mcf. On an oil lease all gas is reported as casinghead. The latest months are revised upward as late reports arrive.
Last 12 months 0 · prior 12 0
Who reported it
Each run of months one operator filed the production report, oldest first.
- COG Operating LLCMar 2015 → Sep 2020 · 67 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
About this data
Monthly oil, gas, and casinghead from the RRC PDQ production dump, which lags the reporting month by two to three months; figures shown through Apr 2026. Wells from completion reports; operator runs from who filed each month's report.
Developers: this page as JSON is GET /v1/data/leases/tx/o-10-46940, documented in the API reference.