LEASES · O-1-11994 · OIL · DISTRICT 01
Herrera, Gregoria et AL
No volume since Jan 2006Century Resources, Inc. · McMullen County · San Miguel Creek (W-3, Seg AA) field
Herrera, Gregoria ET AL is an RRC oil lease (O-1-11994) in Mcmullen County operated by Century Resources, Inc., with 2 wells completed on it.
It has reported 50.4K barrels of oil and 21 mcf of gas since January 1993, last reporting volume in January 2006 (statewide data runs through April 2026).
The last 12 reported months total 1.12K barrels of oil, down 58% on the year before; the lease peaked at 673 barrels in April 1993.
5 operators have filed production on it, most recently Century Resources, Inc. since June 2001.
- 50.4K
- bbl oil, all reported
- 21
- mcf gas incl. casinghead
- 1.12K
- bbl oil, last 12 reported
- -58%
- vs the 12 before
- 2
- wells completed on it
- 673
- peak month, bbl (Apr 1993)
PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME JAN 2006 · 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 1,119 · prior 12 2,634(-58%)
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
Who reported it
Each run of months one operator filed the production report, oldest first.
- Aop Operating CorporationJan 1993 → Jan 1998 · 61 mo
- Principal Oil Corp.Feb 1998 → Mar 1998 · 2 mo
- Texona Petroleum CorporationApr 1998 → Feb 2001 · 35 mo
- Toreador Exploration & Prod IncMar 2001 → May 2001 · 3 mo
- Century Resources, Inc.Jun 2001 → Aug 2006 · 63 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
2
wells completed on the lease
- Not on Schedule
- 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-1-11994, documented in the API reference.