LEASES · O-1-7544 · OIL · DISTRICT 01
O'Brien
Great Plains Resources, Inc. · Bexar County · Somerset field
O'Brien is an RRC oil lease (O-1-7544) in Bexar County operated by Great Plains Resources, Inc., with one well completed on it.
It has reported 55 barrels of oil since March 1993, last reporting volume in April 1997 (statewide data runs through April 2026).
No volume was reported in the 12 months through April 2026; the last was in April 1997.
4 operators have filed production on it, most recently Great Plains Resources, Inc. since June 1996.
- 55
- bbl oil, all reported
- 0
- mcf gas incl. casinghead
- 0
- bbl oil, 12 months through Apr 2026
- —
- vs the 12 before
- 1
- wells completed on it
- 31
- peak month, bbl (Mar 1993)
PDQ LEASE REPORTS · FIRST MAR 1993 · LAST VOLUME APR 1997 · STATEWIDE DATA THROUGH APR 2026
Oil by year
Each bar is a year's total of the monthly reports, Jan 1993 to Apr 1997. Nothing reported since, through Apr 2026.
Oil, bbl
Who reported it
Each run of months one operator filed the production report, oldest first, with what it reported in them.
- Duncan ProductionJan 1993 → Apr 1993 · 4 mo31 bbl oil · 0 mcf gas
- Caspen Operating CompanyMay 1993 → Mar 1995 · 23 mo0 bbl oil · 0 mcf gas
- Ginco Operating Co.Apr 1995 → May 1996 · 14 mo6 bbl oil · 0 mcf gas
- Great Plains Resources, Inc.Jun 1996 → Aug 2003 · 87 mo18 bbl oil · 0 mcf gas
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-1-7544, documented in the API reference.