LEASES · O-9-13960 · OIL · DISTRICT 7C
Bigby-Neely
Diamondback E&P LLC · Glasscock County · Spraberry (Trend Area) field
Bigby-Neely is an RRC oil lease (O-9-13960) in Glasscock County operated by Diamondback E&P LLC, with one well completed on it.
It has reported 11.7K barrels of oil and 143K mcf of gas since November 1995, last reporting volume in April 2026 (statewide data runs through April 2026).
It reported 175 barrels of oil in the 12 months through April 2026, down 16% on the year before; the lease peaked at 193 barrels in May 2012.
3 operators have filed production on it, most recently Diamondback E&P LLC since January 2025.
- 11.7K
- bbl oil, all reported
- 143K
- mcf gas incl. casinghead
- 175
- bbl oil, 12 months through Apr 2026
- -16%
- vs the 12 before
- 1
- wells completed on it
- 193
- peak month, bbl (May 2012)
PDQ LEASE REPORTS · FIRST NOV 1995 · 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 175 · prior 12 208(-16%)
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 2,989 · prior 12 2,273(+32%)
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.
- Citation Oil & Gas Corp.Nov 1995 → Dec 2005 · 122 mo
- Endeavor Energy Resources L.P.Jan 2006 → Dec 2024 · 228 mo
- Diamondback E&P LLCJan 2025 → Jul 2026 · 19 mo
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 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-9-13960, documented in the API reference.