LEASES · O-9-17061 · OIL · DISTRICT 7C
HALFFEAST36SW
ReportingDiamondback E&P LLC · Upton County · Blue Danube (Strawn) field
Halffeast36sw is an RRC oil lease (O-9-17061) in Upton County operated by Diamondback E&P LLC, with one well completed on it.
It has reported 38.2K barrels of oil and 166K mcf of gas since October 2009, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 626 barrels of oil, down 20% on the year before; the lease peaked at 2.51K barrels in March 2010.
3 operators have filed production on it, most recently Diamondback E&P LLC since February 2025.
- 38.2K
- bbl oil, all reported
- 166K
- mcf gas incl. casinghead
- 626
- bbl oil, last 12 reported
- -20%
- vs the 12 before
- 1
- wells completed on it
- 2.51K
- peak month, bbl (Mar 2010)
PDQ LEASE REPORTS · FIRST OCT 2009 · 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 626 · prior 12 787(-20%)
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 5,564 · prior 12 3,807(+46%)
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.
- COG Operating LLCOct 2009 → Jun 2018 · 105 mo
- TRP Operating LLCJul 2018 → Jan 2025 · 79 mo
- Diamondback E&P LLCFeb 2025 → Jul 2026 · 18 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-9-17061, documented in the API reference.