LEASES · O-10-8826 · OIL · DISTRICT 08
Lane, W. H. "40A"
ReportingDiamondback E&P LLC · Glasscock County · Spraberry (Trend Area) field
Lane, W. H. "40a" is an RRC oil lease (O-10-8826) in Glasscock County operated by Diamondback E&P LLC, with 5 wells completed on it.
It has reported 305K barrels of oil and 1.24M mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 6.26K barrels of oil, down 38% on the year before; the lease peaked at 6.17K barrels in February 2015.
7 operators have filed production on it, most recently Diamondback E&P LLC since January 2025.
- 305K
- bbl oil, all reported
- 1.24M
- mcf gas incl. casinghead
- 6.26K
- bbl oil, last 12 reported
- -38%
- vs the 12 before
- 5
- wells completed on it
- 6.17K
- peak month, bbl (Feb 2015)
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 6,261 · prior 12 10,151(-38%)
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 27,210 · prior 12 43,682(-38%)
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.
- Hanley Petroleum Inc.Jan 1993 → Feb 1999 · 74 mo
- Concho Resources Inc.Mar 1999 → Jun 2001 · 28 mo
- Devon Energy Production Co, L.P.Jul 2001 → Jun 2002 · 12 mo
- Merit Energy CompanyJul 2002 → Nov 2013 · 137 mo
- Hunt Oil CompanyDec 2013 → Jul 2018 · 56 mo
- Endeavor Energy Resources L.P.Aug 2018 → Dec 2024 · 77 mo
- Diamondback E&P LLCJan 2025 → Jul 2026 · 19 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
5
wells completed on the lease
- Plugged
- 3
- Producing
- 2
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-10-8826, documented in the API reference.