LEASES · O-10-49851 · OIL · DISTRICT 08
L Black 88-87 West
ReportingDiamondback E&P LLC · Ward County · Phantom (Wolfcamp) field
L Black 88-87 West is an RRC oil lease (O-10-49851) in Ward County operated by Diamondback E&P LLC, with 2 wells completed on it.
It has reported 596K barrels of oil and 1.31M mcf of gas since January 2018, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 46.1K barrels of oil, down 9% on the year before; the lease peaked at 38.4K barrels in July 2018.
3 operators have filed production on it, most recently Diamondback E&P LLC since January 2022.
- 596K
- bbl oil, all reported
- 1.31M
- mcf gas incl. casinghead
- 46.1K
- bbl oil, last 12 reported
- -9%
- vs the 12 before
- 2
- wells completed on it
- 38.4K
- peak month, bbl (Jul 2018)
PDQ LEASE REPORTS · FIRST JAN 2018 · 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 46,142 · prior 12 50,833(-9%)
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 126,901 · prior 12 195,446(-35%)
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.
- Occidental Permian Ltd.Jan 2018 → Aug 2021 · 44 mo
- Colgate Operating, LLCSep 2021 → Dec 2021 · 4 mo
- Diamondback E&P LLCJan 2022 → Jul 2026 · 55 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
2
wells completed on the lease
- 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.
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