LEASES · O-10-2435 · OIL · DISTRICT 08
Halley, S. M.
ReportingTeam Operating, L.L.C. · Winkler County · Halley field
Halley, S. M. is an RRC oil lease (O-10-2435) in Winkler County operated by Team Operating, L.L.C., with 256 wells completed on it.
It has reported 1M barrels of oil and 4.17M mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 4.86K barrels of oil, down 44% on the year before; the lease peaked at 9.85K barrels in January 1998.
6 operators have filed production on it, most recently Team Operating, L.L.C. since May 2025.
- 1M
- bbl oil, all reported
- 4.17M
- mcf gas incl. casinghead
- 4.86K
- bbl oil, last 12 reported
- -44%
- vs the 12 before
- 256
- wells completed on it
- 9.85K
- peak month, bbl (Jan 1998)
PDQ LEASE REPORTS · FIRST JAN 1993 · 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 4,859 · prior 12 8,725(-44%)
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 2,100(-100%)
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.
- Texaco E & P Inc.Jan 1993 → Nov 1994 · 23 mo
- Midland Southwest Cold Lake IncDec 1994 → Jun 1997 · 31 mo
- Southwest Royalties, Inc.Jul 1997 → Nov 2018 · 257 mo
- Champion Lone Star Operating,llcDec 2018 → Mar 2020 · 16 mo
- Juno Operating Company III, LLCApr 2020 → Apr 2025 · 61 mo
- Team Operating, L.L.C.May 2025 → Jul 2026 · 15 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
256
wells completed on the lease
- Plugged
- 175
- Shut IN
- 53
- Producing
- 13
- Injection
- 9
- Not on Schedule
- 6
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-10-2435, documented in the API reference.