LEASES · O-10-25295 · OIL · DISTRICT 08
O'Brien 44
Diamondback E&P LLC · Midland County · Spraberry (Trend Area) field
O'Brien 44 is an RRC oil lease (O-10-25295) in Midland County operated by Diamondback E&P LLC, with one well completed on it.
It has reported 40.2K barrels of oil and 28.3K mcf of gas since the record begins in January 1993, last reporting volume in August 2026 (statewide data runs through August 2026).
It reported 388 barrels of oil in the 12 months through August 2026, down 19% on the year before; the lease peaked at 292 barrels in April 2016.
7 operators have filed production on it, most recently Diamondback E&P LLC since January 2025.
- 40.2K
- bbl oil, all reported
- 28.3K
- mcf gas incl. casinghead
- 388
- bbl oil, 12 months through Aug 2026
- -19%
- vs the 12 before
- 1
- wells completed on it
- 292
- peak month, bbl (Apr 2016)
PDQ LEASE REPORTS · ON RECORD FROM JAN 1993, THE RECORD'S FIRST MONTH · LAST VOLUME AUG 2026 · STATEWIDE DATA THROUGH AUG 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 Aug 2026 388 · prior 12 478(-19%)
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 Aug 2026 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, with what it reported in them.
- MWJ Producing CompanyJan 1993 → Jan 1996 · 37 mo6.06K bbl oil · 11K mcf gas
- Limark CorporationFeb 1996 → Dec 2003 · 95 mo11.4K bbl oil · 8.46K mcf gas
- Northstar Operating CompanyJan 2004 → Oct 2016 · 154 mo16.5K bbl oil · 8.84K mcf gas
- De Operating LLCNov 2016 → Apr 2017 · 6 mo328 bbl oil · 0 mcf gas
- Parsley Energy Operations, LLCMay 2017 → Nov 2020 · 43 mo3.02K bbl oil · 27 mcf gas
- Endeavor Energy Resources L.P.Dec 2020 → Dec 2024 · 49 mo2.19K bbl oil · 24 mcf gas
- Diamondback E&P LLCJan 2025 → Nov 2026 · 23 mo728 bbl oil · 0 mcf gas
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 Aug 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-10-25295, documented in the API reference.