LEASES · G-2-262109 · GAS · DISTRICT 02
Sienkiewics Unit
Marathon Oil EF LLC · Karnes County · Sugarkane (Eagle Ford) field
Sienkiewics Unit is an RRC gas lease (G-2-262109) in Karnes County operated by Marathon Oil EF LLC, with one well completed on it.
It has reported 1.33M mcf of gas and 364K barrels of condensate since January 2011, last reporting volume in November 2024 (statewide data runs through August 2026).
No volume was reported in the 12 months through August 2026; the last was in November 2024.
2 operators have filed production on it, most recently Marathon Oil EF LLC since November 2011.
- 1.33M
- mcf gas, all reported
- 364K
- bbl condensate, all reported
- 0
- mcf gas, 12 months through Aug 2026
- —
- vs the 12 before
- 1
- wells completed on it
- —
- peak month, bbl
PDQ LEASE REPORTS · FIRST JAN 2011 · LAST VOLUME NOV 2024 · STATEWIDE DATA THROUGH AUG 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.
12 months through Aug 2026 0 · prior 12 3,500(-100%)
Who reported it
Each run of months one operator filed the production report, oldest first, with what it reported in them.
- Hilcorp Energy CompanyDec 2010 → Oct 2011 · 11 mo136K bbl oil · 496K mcf gas
- Marathon Oil EF LLCNov 2011 → Nov 2026 · 181 mo228K bbl oil · 838K mcf gas
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 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/g-2-262109, documented in the API reference.