LEASES · O-10-43910 · OIL · DISTRICT 08
Kolb "B"
Sabalo II Operating, LLC · Andrews County · Spraberry (Trend Area) field
Kolb "B" is an RRC oil lease (O-10-43910) in Andrews County operated by Sabalo II Operating, LLC, with 2 wells completed on it.
It has reported 33.2K barrels of oil and 107K mcf of gas since October 2012, last reporting volume in April 2026 (statewide data runs through April 2026).
It reported 1.25K barrels of oil in the 12 months through April 2026, up 15% on the year before; the lease peaked at 1.83K barrels in April 2013.
5 operators have filed production on it, most recently Sabalo II Operating, LLC since June 2024.
- 33.2K
- bbl oil, all reported
- 107K
- mcf gas incl. casinghead
- 1.25K
- bbl oil, 12 months through Apr 2026
- +15%
- vs the 12 before
- 2
- wells completed on it
- 1.83K
- peak month, bbl (Apr 2013)
PDQ LEASE REPORTS · FIRST OCT 2012 · 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.
12 months through Apr 2026 1,251 · prior 12 1,091(+15%)
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.
12 months through Apr 2026 3,907 · prior 12 3,336(+17%)
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, with what it reported in them.
- Williams, Clayton Energy, Inc.Oct 2012 → Mar 2017 · 54 mo21K bbl oil · 70.1K mcf gas
- NBL Permian LLCApr 2017 → Sep 2017 · 6 mo972 bbl oil · 1.48K mcf gas
- Throne Petroleum Resources LLCOct 2017 → Aug 2021 · 47 mo5.88K bbl oil · 18.2K mcf gas
- Montrose Operating LLCSep 2021 → May 2024 · 33 mo3.04K bbl oil · 10.1K mcf gas
- Sabalo II Operating, LLCJun 2024 → Jul 2026 · 26 mo2.25K bbl oil · 6.94K mcf gas
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.
Developers: this page as JSON is GET /v1/data/leases/tx/o-10-43910, documented in the API reference.