LEASES · O-1-20036 · OIL · DISTRICT 01
Windsor Unit B Las
ReportingIneos USA Oil & Gas LLC · LA Salle County · Lorenzo (Austin Chalk) field
Windsor Unit B Las is an RRC oil lease (O-1-20036) in La Salle County operated by Ineos USA Oil & Gas LLC, with one well completed on it.
It has reported 142K barrels of oil and 145K mcf of gas since November 2019, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 16.5K barrels of oil, up 17% on the year before; the lease peaked at 5.37K barrels in January 2020.
2 operators have filed production on it, most recently Ineos USA Oil & Gas LLC since April 2023.
- 142K
- bbl oil, all reported
- 145K
- mcf gas incl. casinghead
- 16.5K
- bbl oil, last 12 reported
- +17%
- vs the 12 before
- 1
- wells completed on it
- 5.37K
- peak month, bbl (Jan 2020)
PDQ LEASE REPORTS · FIRST NOV 2019 · 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 16,493 · prior 12 14,043(+17%)
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 23,451 · prior 12 7,556(+210%)
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.
- Chesapeake Operating, L.L.C.Nov 2019 → Mar 2023 · 41 mo
- Ineos USA Oil & Gas LLCApr 2023 → Jul 2026 · 40 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-1-20036, documented in the API reference.