LEASES · G-4-129646 · GAS · DISTRICT 04
DE Los Santos Gas Unit 1
ReportingMarwell Petroleum Ltd Partnrship · Zapata County · EL Huerfano (10800), Haynes (Middle Wilcox Cons.) field
De Los Santos Gas Unit 1 is an RRC gas lease (G-4-129646) in Zapata County operated by Marwell Petroleum Ltd Partnrship, with one well completed on it.
It has reported 1.18M mcf of gas since January 1993, last reporting volume in April 2026 (statewide data runs through April 2026).
The last 12 reported months total 7K mcf of gas.
4 operators have filed production on it, most recently Marwell Petroleum Ltd Partnrship since May 2006.
- 1.18M
- mcf gas, all reported
- 0
- bbl condensate and oil
- 7K
- mcf gas, last 12 reported
- —
- vs the 12 before
- 1
- wells completed on it
- —
- peak month, bbl
PDQ LEASE REPORTS · FIRST JAN 1993 · 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 7,003 · prior 12 5,681(+23%)
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.
- Transamerican Natural Gas Corp.Jan 1993 → May 1997 · 53 mo
- Transtexas Gas CorporationJun 1997 → Feb 1998 · 9 mo
- Marwell Petroleum, Inc.Mar 1998 → Apr 2006 · 98 mo
- Marwell Petroleum Ltd PartnrshipMay 2006 → Jul 2026 · 243 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-4-129646, documented in the API reference.