LEASES · O-1-19955 · OIL · DISTRICT 01
Derby South C
ReportingTrinity Operating (Usg), LLC · Frio County · Eagleville (Eagle Ford-1) field
Derby South C is an RRC oil lease (O-1-19955) in Frio County operated by Trinity Operating (Usg), LLC, with 3 wells completed on it.
It has reported 253K barrels of oil and 743K mcf of gas since July 2019, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 15.6K barrels of oil, down 13% on the year before; the lease peaked at 15.1K barrels in October 2019.
- 253K
- bbl oil, all reported
- 743K
- mcf gas incl. casinghead
- 15.6K
- bbl oil, last 12 reported
- -13%
- vs the 12 before
- 3
- wells completed on it
- 15.1K
- peak month, bbl (Oct 2019)
PDQ LEASE REPORTS · FIRST JUL 2019 · 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 15,588 · prior 12 17,888(-13%)
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 66,954 · prior 12 86,068(-22%)
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.
- Trinity Operating (Usg), LLCJul 2019 → Jul 2026 · 85 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
3
wells completed on the lease
- Producing
- 2
- NO Type on File
- 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.
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