LEASES · O-4-1138 · OIL · DISTRICT 04
Duval Ranch -59-
ReportingKillam Oil Co., Ltd. · Duval County · Govt. Wells, South field
Duval Ranch -59- is an RRC oil lease (O-4-1138) in Duval County operated by Killam Oil CO., Ltd., with 21 wells completed on it.
It has reported 798K barrels of oil and 21 mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 5.38K barrels of oil, down 30% on the year before; the lease peaked at 4.16K barrels in January 1993.
3 operators have filed production on it, most recently Killam Oil CO., Ltd. since April 1994.
- 798K
- bbl oil, all reported
- 21
- mcf gas incl. casinghead
- 5.38K
- bbl oil, last 12 reported
- -30%
- vs the 12 before
- 21
- wells completed on it
- 4.16K
- peak month, bbl (Jan 1993)
PDQ LEASE REPORTS · FIRST JAN 1993 · 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 5,377 · prior 12 7,635(-30%)
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.
- Dunigan Petroleum, Inc.Jan 1993 → Dec 1993 · 12 mo
- Killam Oil CompanyJan 1994 → Mar 1994 · 3 mo
- Killam Oil Co., Ltd.Apr 1994 → Jul 2026 · 388 mo
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
21
wells completed on the lease
- Shut IN
- 8
- Plugged
- 8
- NO Type on File
- 3
- Producing
- 1
- Injection
- 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.
Developers: this page as JSON is GET /v1/data/leases/tx/o-4-1138, documented in the API reference.