LEASES · O-1-15627 · OIL · DISTRICT 01
Swaim Unit I MCM
Ineos USA Oil & Gas LLC · McMullen County · Eagleville (Eagle Ford-1) field
Swaim Unit I Mcm is an RRC oil lease (O-1-15627) in Mcmullen County operated by Ineos USA Oil & Gas LLC, with 2 wells completed on it.
It has reported 132K barrels of oil and 254K mcf of gas since April 2012, last reporting volume in August 2026 (statewide data runs through August 2026).
It reported 2.04K barrels of oil in the 12 months through August 2026, down 8% on the year before; the lease peaked at 11.7K barrels in October 2012.
3 operators have filed production on it, most recently Ineos USA Oil & Gas LLC since April 2023.
- 132K
- bbl oil, all reported
- 254K
- mcf gas incl. casinghead
- 2.04K
- bbl oil, 12 months through Aug 2026
- -8%
- vs the 12 before
- 2
- wells completed on it
- 11.7K
- peak month, bbl (Oct 2012)
PDQ LEASE REPORTS · FIRST APR 2012 · LAST VOLUME AUG 2026 · STATEWIDE DATA THROUGH AUG 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 Aug 2026 2,039 · prior 12 2,225(-8%)
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 Aug 2026 4,858 · prior 12 3,653(+33%)
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, with what it reported in them.
- Chesapeake Operating, Inc.Oct 2011 → Oct 2014 · 37 mo81.2K bbl oil · 158K mcf gas
- Chesapeake Operating, L.L.C.Nov 2014 → Mar 2023 · 101 mo43.9K bbl oil · 82.6K mcf gas
- Ineos USA Oil & Gas LLCApr 2023 → Nov 2026 · 44 mo7.19K bbl oil · 13.1K mcf gas
Wells on the lease
FROM COMPLETION REPORTS · PRODUCTION ABOVE IS THEIR TOTAL
2
wells completed on the lease
- Producing
- 1
- Not on Schedule
- 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 Aug 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-1-15627, documented in the API reference.