LEASES · O-10-43078 · OIL · DISTRICT 08
Cox
ReportingRock Fish Operating LLC · Martin County · Spraberry (Trend Area) field
Cox is an RRC oil lease (O-10-43078) in Martin County operated by Rock Fish Operating LLC, with one well completed on it.
It has reported 40K barrels of oil and 57.3K mcf of gas since August 2012, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 3 barrels of oil; the lease peaked at 1.43K barrels in October 2012.
8 operators have filed production on it, most recently Rock Fish Operating LLC since April 2026.
- 40K
- bbl oil, all reported
- 57.3K
- mcf gas incl. casinghead
- 3
- bbl oil, last 12 reported
- —
- vs the 12 before
- 1
- wells completed on it
- 1.43K
- peak month, bbl (Oct 2012)
PDQ LEASE REPORTS · FIRST AUG 2012 · 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 3 · prior 12 1(+200%)
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.
- Piedra Operating, LLCAug 2012 → Mar 2014 · 20 mo
- Athlon Holdings LPApr 2014 → Jan 2015 · 10 mo
- Encana Oil & Gas(usa) Inc.Feb 2015 → May 2018 · 40 mo
- Parsley Energy Operations, LLCJun 2018 → May 2020 · 24 mo
- Bam Permian Operating, LLCJun 2020 → Feb 2021 · 9 mo
- Hexp Operating, LLCMar 2021 → Sep 2022 · 19 mo
- Flat Top Operating, LLCOct 2022 → Mar 2026 · 42 mo
- Rock Fish Operating LLCApr 2026 → Jul 2026 · 4 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-10-43078, documented in the API reference.