LEASES · G-3-211585 · GAS · DISTRICT 03
Marshall Brothers Trust GU #1
ReportingGalloway Lone Star, L.L.C. · Harris County · Tomball, SE. (12,250) field
Marshall Brothers Trust GU #1 is an RRC gas lease (G-3-211585) in Harris County operated by Galloway Lone Star, L.L.C., with one well completed on it.
It has reported 331K mcf of gas since July 2005, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 2.91K mcf of gas.
5 operators have filed production on it, most recently Galloway Lone Star, L.L.C. since August 2018.
- 331K
- mcf gas, all reported
- 0
- bbl condensate and oil
- 2.91K
- mcf gas, last 12 reported
- —
- vs the 12 before
- 1
- wells completed on it
- —
- peak month, bbl
PDQ LEASE REPORTS · FIRST JUL 2005 · LAST VOLUME APR 2026 · STATEWIDE DATA THROUGH APR 2026
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 2,906 · prior 12 739(+293%)
Decline curve
None shown. Petrora fits an Arps curve only when the last ten years of gas 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.
- Opex Energy, LLCJul 2005 → Mar 2007 · 21 mo
- Exploration Company, TheApr 2007 → Jun 2007 · 3 mo
- Txco Resources Inc.Jul 2007 → Jun 2010 · 36 mo
- Gaither Petroleum CorporationJul 2010 → Jul 2018 · 97 mo
- Galloway Lone Star, L.L.C.Aug 2018 → Jul 2026 · 96 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/g-3-211585, documented in the API reference.