LEASES · O-1-16860 · OIL · DISTRICT 01
Colwell-Cook 1
ReportingAuterra Operating, LLC · Gonzales County · Eagleville (Eagle Ford-1) field
Colwell-Cook 1 is an RRC oil lease (O-1-16860) in Gonzales County operated by Auterra Operating, LLC, with one well completed on it.
It has reported 206K barrels of oil and 100K mcf of gas since March 2013, last reporting volume in October 2025 (statewide data runs through April 2026).
The last 12 reported months total 38 barrels of oil, down 87% on the year before; the lease peaked at 13.4K barrels in May 2013.
3 operators have filed production on it, most recently Auterra Operating, LLC since June 2018.
- 206K
- bbl oil, all reported
- 100K
- mcf gas incl. casinghead
- 38
- bbl oil, last 12 reported
- -87%
- vs the 12 before
- 1
- wells completed on it
- 13.4K
- peak month, bbl (May 2013)
PDQ LEASE REPORTS · FIRST MAR 2013 · LAST VOLUME OCT 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 38 · prior 12 288(-87%)
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 2 · prior 12 84(-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.
- Forest Oil CorporationMar 2013 → Mar 2015 · 25 mo
- Sabine Oil & Gas CorporationApr 2015 → May 2018 · 38 mo
- Auterra Operating, LLCJun 2018 → Jul 2026 · 98 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-1-16860, documented in the API reference.