LEASES · O-3-23564 · OIL · DISTRICT 03
Blacktail Unit
ReportingWildfire Energy Operating LLC · Robertson County · Giddings (Austin Chalk-3) field
Blacktail Unit is an RRC oil lease (O-3-23564) in Robertson County operated by Wildfire Energy Operating LLC, with 2 wells completed on it.
It has reported 455K barrels of oil and 363K mcf of gas since August 1998, last reporting volume in March 2026 (statewide data runs through April 2026).
The last 12 reported months total 10.6K barrels of oil, down 11% on the year before; the lease peaked at 14K barrels in July 1999.
7 operators have filed production on it, most recently Wildfire Energy Operating LLC since March 2023.
- 455K
- bbl oil, all reported
- 363K
- mcf gas incl. casinghead
- 10.6K
- bbl oil, last 12 reported
- -11%
- vs the 12 before
- 2
- wells completed on it
- 14K
- peak month, bbl (Jul 1999)
PDQ LEASE REPORTS · FIRST AUG 1998 · LAST VOLUME MAR 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 10,590 · prior 12 11,898(-11%)
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 4,871 · prior 12 5,248(-7%)
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.
- Union Pacific Resources CompanyAug 1998 → Jan 2001 · 30 mo
- Rme Petroleum CompanyFeb 2001 → Nov 2002 · 22 mo
- Anadarko E&P Company LPDec 2002 → Dec 2012 · 121 mo
- Anadarko E&P Onshore LLCJan 2013 → Jun 2017 · 54 mo
- Wildhorse Resources Mngt Co, LLCJul 2017 → May 2019 · 23 mo
- Chesapeake Operating, L.L.C.Jun 2019 → Feb 2023 · 45 mo
- Wildfire Energy Operating LLCMar 2023 → Jul 2026 · 41 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
2
wells completed on the lease
- Producing
- 1
- NO Type on File
- 1
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-3-23564, documented in the API reference.