LEASES · O-10-49434 · OIL · DISTRICT 08
Darlington Unit 11B
ReportingVTX Energy Operating, LLC · Reeves County · Wolfbone (Trend Area) field
Darlington Unit 11b is an RRC oil lease (O-10-49434) in Reeves County operated by Vtx Energy Operating, LLC, with one well completed on it.
It has reported 366K barrels of oil and 953K mcf of gas since October 2017, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 19K barrels of oil, down 13% on the year before; the lease peaked at 17.9K barrels in November 2017.
2 operators have filed production on it, most recently Vtx Energy Operating, LLC since September 2023.
- 366K
- bbl oil, all reported
- 953K
- mcf gas incl. casinghead
- 19K
- bbl oil, last 12 reported
- -13%
- vs the 12 before
- 1
- wells completed on it
- 17.9K
- peak month, bbl (Nov 2017)
PDQ LEASE REPORTS · FIRST OCT 2017 · 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 19,031 · prior 12 21,882(-13%)
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 43,049 · prior 12 50,124(-14%)
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.
- Pri Operating, LLCOct 2017 → Aug 2023 · 71 mo
- VTX Energy Operating, LLCSep 2023 → Jul 2026 · 35 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-10-49434, documented in the API reference.