LEASES · O-1-5664 · OIL · DISTRICT 01
Williams, Mary Isabella -A-
ReportingAaronmark Services, LLC · Atascosa County · Patty Hutt (Wilcox) field
Williams, Mary Isabella -A- is an RRC oil lease (O-1-5664) in Atascosa County operated by Aaronmark Services, LLC, with 5 wells completed on it.
It has reported 28.6K barrels of oil and 19 mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 561 barrels of oil, down 14% on the year before; the lease peaked at 1.49K barrels in August 1994.
8 operators have filed production on it, most recently Aaronmark Services, LLC since July 2025.
- 28.6K
- bbl oil, all reported
- 19
- mcf gas incl. casinghead
- 561
- bbl oil, last 12 reported
- -14%
- vs the 12 before
- 5
- wells completed on it
- 1.49K
- peak month, bbl (Aug 1994)
PDQ LEASE REPORTS · FIRST JAN 1993 · 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 561 · prior 12 653(-14%)
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 0 · prior 12 0
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.
- H. & J. Drilling CompanyJan 1993 → Feb 1994 · 14 mo
- Alcor Energy, Inc.Mar 1994 → Aug 2000 · 78 mo
- Cole, Frank W EngineeringSep 2000 → Mar 2006 · 67 mo
- Comanche Well Service Corp.Apr 2006 → Jul 2007 · 16 mo
- Wen-BEAug 2007 → Dec 2015 · 101 mo
- WSMJan 2016 → Nov 2023 · 95 mo
- WSM LLCDec 2023 → Jun 2025 · 19 mo
- Aaronmark Services, LLCJul 2025 → Jul 2026 · 13 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
5
wells completed on the lease
- Shut IN
- 2
- Plugged
- 2
- Producing
- 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-1-5664, documented in the API reference.