LEASES · O-10-39493 · OIL · DISTRICT 08
Mabee 240C
ReportingCOG Operating LLC · Andrews County · Spraberry (Trend Area) field
Mabee 240c is an RRC oil lease (O-10-39493) in Andrews County operated by Cog Operating LLC, with 83 wells completed on it.
It has reported 9.04M barrels of oil and 22.4M mcf of gas since February 2009, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 10.5K barrels of oil, down 54% on the year before; the lease peaked at 329K barrels in July 2018.
2 operators have filed production on it, most recently Cog Operating LLC since October 2016.
- 9.04M
- bbl oil, all reported
- 22.4M
- mcf gas incl. casinghead
- 10.5K
- bbl oil, last 12 reported
- -54%
- vs the 12 before
- 83
- wells completed on it
- 329K
- peak month, bbl (Jul 2018)
PDQ LEASE REPORTS · FIRST FEB 2009 · LAST VOLUME APR 2026 · 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 10,480 · prior 12 22,987(-54%)
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 143,081 · prior 12 290,418(-51%)
Decline curve
None shown. Petrora fits an Arps curve only when the last ten years of oil reports follow one decline closely enough to project (R² of 0.7 or better over at least a year since the peak). This lease's recent history does not, so a projection would be a guess dressed as a number.
Who reported it
Each run of months one operator filed the production report, oldest first.
- Reliance Energy, Inc.Feb 2009 → Sep 2016 · 92 mo
- COG Operating LLCOct 2016 → Jul 2026 · 118 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
83
wells completed on the lease
- Shut In
- 38
- Not on Schedule
- 30
- Plugged
- 13
- Producing
- 2
Operates them now
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-10-39493, documented in the API reference.