LEASES · O-1-12373 · OIL · DISTRICT 01
Nicholson Heirs Unit
No volume since Oct 1997Williams, Clayton Energy, Inc. · Frio County · Pearsall (Austin Chalk) field
Nicholson Heirs Unit is an RRC oil lease (O-1-12373) in Frio County operated by Williams, Clayton Energy, Inc., with one well completed on it.
It has reported 10.3K barrels of oil and 21 mcf of gas since January 1993, last reporting volume in October 1997 (statewide data runs through April 2026).
No volume was reported in the 12 months through April 2026; the last was in October 1997.
3 operators have filed production on it, most recently Williams, Clayton Energy, Inc. since June 1993.
- 10.3K
- bbl oil, all reported
- 21
- mcf gas incl. casinghead
- 0
- bbl oil, 12 months through Apr 2026
- —
- vs the 12 before
- 1
- wells completed on it
- 803
- peak month, bbl (Dec 1993)
PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME OCT 1997 · 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 0 · prior 12 0
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 0 · prior 12 0
Who reported it
Each run of months one operator filed the production report, oldest first.
- Williams, Clayton W., Jr., Inc.Jan 1993 → Apr 1993 · 4 mo
- Williams, Clayton Energy, L.L.CMay 1993 → May 1993 · 1 mo
- Williams, Clayton Energy, Inc.Jun 1993 → Oct 2001 · 101 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-1-12373, documented in the API reference.