LEASES · O-11-6258 · OIL · DISTRICT 8A
Spraberry Deep Unit
ReportingJO Mill Oil Company LLC · Dawson County · Spraberry, Deep field
Spraberry Deep Unit is an RRC oil lease (O-11-6258) in Dawson County operated by JO Mill Oil Company LLC, with 54 wells completed on it.
It has reported 1.25M barrels of oil and 342K mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 9.18K barrels of oil, up 18% on the year before; the lease peaked at 12.8K barrels in November 1996.
3 operators have filed production on it, most recently JO Mill Oil Company LLC since October 2020.
- 1.25M
- bbl oil, all reported
- 342K
- mcf gas incl. casinghead
- 9.18K
- bbl oil, last 12 reported
- +18%
- vs the 12 before
- 54
- wells completed on it
- 12.8K
- peak month, bbl (Nov 1996)
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 9,182 · prior 12 7,809(+18%)
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
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 → May 2002 · 113 mo
- Chevron U. S. A. Inc.Jun 2002 → Sep 2020 · 220 mo
- JO Mill Oil Company LLCOct 2020 → Jul 2026 · 70 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
54
wells completed on the lease
- Plugged
- 34
- Water Supply
- 6
- Producing
- 4
- NO Type on File
- 4
- Shut IN
- 3
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-11-6258, documented in the API reference.