LEASES · O-1-17238 · OIL · DISTRICT 01
Mahan-Colwell
Auterra Operating, LLC · Gonzales County · Eagleville (Eagle Ford-1) field
Mahan-Colwell is an RRC oil lease (O-1-17238) in Gonzales County operated by Auterra Operating, LLC, with one well completed on it.
It has reported 61.3K barrels of oil and 44.2K mcf of gas since August 2013, last reporting volume in November 2025 (statewide data runs through April 2026).
It reported 90 barrels of oil in the 12 months through April 2026; the lease peaked at 4.43K barrels in September 2013.
3 operators have filed production on it, most recently Auterra Operating, LLC since June 2018.
- 61.3K
- bbl oil, all reported
- 44.2K
- mcf gas incl. casinghead
- 90
- bbl oil, 12 months through Apr 2026
- —
- vs the 12 before
- 1
- wells completed on it
- 4.43K
- peak month, bbl (Sep 2013)
PDQ LEASE REPORTS · FIRST AUG 2013 · LAST VOLUME NOV 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.
12 months through Apr 2026 90 · prior 12 0
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.
12 months through Apr 2026 5 · 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.
- Forest Oil CorporationAug 2013 → Mar 2015 · 20 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-1-17238, documented in the API reference.