LEASES · O-10-36677 · OIL · DISTRICT 08
TXL "23"
COG Operating LLC · Midland County · Spraberry (Trend Area) field
Txl "23" is an RRC oil lease (O-10-36677) in Midland County operated by Cog Operating LLC, with 8 wells completed on it.
It has reported 603K barrels of oil and 1.08M mcf of gas since July 2001, last reporting volume in April 2026 (statewide data runs through April 2026).
It reported 12.9K barrels of oil in the 12 months through April 2026, down 17% on the year before; the lease peaked at 6.72K barrels in March 2004.
4 operators have filed production on it, most recently Cog Operating LLC since November 2020.
- 603K
- bbl oil, all reported
- 1.08M
- mcf gas incl. casinghead
- 12.9K
- bbl oil, 12 months through Apr 2026
- -17%
- vs the 12 before
- 8
- wells completed on it
- 6.72K
- peak month, bbl (Mar 2004)
PDQ LEASE REPORTS · FIRST JUL 2001 · 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.
12 months through Apr 2026 12,907 · prior 12 15,582(-17%)
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.
12 months through Apr 2026 23,789 · prior 12 20,474(+16%)
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.
- Terrace Petroleum CorporationJul 2001 → Sep 2005 · 51 mo
- LCX Energy, LLCOct 2005 → Sep 2009 · 48 mo
- Endeavor Energy Resources L.P.Oct 2009 → Oct 2020 · 133 mo
- COG Operating LLCNov 2020 → Jul 2026 · 69 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
8
wells completed on the lease
- Shut In
- 4
- Producing
- 3
- Plugged
- 1
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-10-36677, documented in the API reference.