LEASES · O-4-14154 · OIL · DISTRICT 04
I.V. Montalvo 'C'
ReportingKillam Oil Co., Ltd. · Starr County · Sun, North (5410) field
I.V. Montalvo 'C' is an RRC oil lease (O-4-14154) in Starr County operated by Killam Oil CO., Ltd., with one well completed on it.
It has reported 4.31K barrels of oil and 14.7K mcf of gas since April 2021, last reporting volume in June 2025 (statewide data runs through April 2026).
The last 12 reported months total 39 barrels of oil, down 94% on the year before; the lease peaked at 279 barrels in May 2021.
- 4.31K
- bbl oil, all reported
- 14.7K
- mcf gas incl. casinghead
- 39
- bbl oil, last 12 reported
- -94%
- vs the 12 before
- 1
- wells completed on it
- 279
- peak month, bbl (May 2021)
PDQ LEASE REPORTS · FIRST APR 2021 · LAST VOLUME JUN 2025 · 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 39 · prior 12 669(-94%)
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 161 · prior 12 9,713(-98%)
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.
- Killam Oil Co., Ltd.Apr 2021 → Jul 2026 · 64 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
1
wells completed on the lease
- NO Type on File
- 1
Operates them now
Newest permits
- 42734747 #57May 12, 2021
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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