LEASES · O-8-14563 · OIL · DISTRICT 7B
Thomas Ranch
ReportingFlat Top Operating, LLC · Nolan County · Thomas Ranch (Ellenburger) field
Thomas Ranch is an RRC oil lease (O-8-14563) in Nolan County operated by Flat Top Operating, LLC, with 2 wells completed on it.
It has reported 81.5K barrels of oil and 42.5K mcf of gas since January 1993, last reporting volume in March 2026 (statewide data runs through April 2026).
The last 12 reported months total 1.72K barrels of oil, up 9% on the year before; the lease peaked at 1.09K barrels in October 2004.
5 operators have filed production on it, most recently Flat Top Operating, LLC since March 2025.
- 81.5K
- bbl oil, all reported
- 42.5K
- mcf gas incl. casinghead
- 1.72K
- bbl oil, last 12 reported
- +9%
- vs the 12 before
- 2
- wells completed on it
- 1.09K
- peak month, bbl (Oct 2004)
PDQ LEASE REPORTS · FIRST JAN 1993 · LAST VOLUME MAR 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 1,718 · prior 12 1,572(+9%)
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.
- Cleveland Production CompanyJan 1993 → Feb 1994 · 14 mo
- Startex Energy, Inc.Mar 1994 → Feb 1996 · 24 mo
- Horizon Well Services, Inc.Mar 1996 → Aug 1996 · 6 mo
- Robertson Resources, Inc.Sep 1996 → Feb 2025 · 342 mo
- Flat Top Operating, LLCMar 2025 → Jul 2026 · 17 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
2
wells completed on the lease
- NO Type on File
- 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-8-14563, documented in the API reference.