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Royalty Clerk

Texas gas well

Producing

LISKA 01

Liska 01 is a gas well in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Eagle Ford) field.

1 well

7,310mcf gas, last 12 months−36% vs prior year
RRC lease
02-280766

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
3,611 bbl
Gas in Jul 2026
26 mcf

Production by month

Gas output fell 36% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 36% over the last 12 monthsMonthly gas production and oil for LISKA 01, Aug 2023 to Jul 2026. Gas output fell 36% over the last 12 months. 7,310 mcf in the 12 months through Jul 2026, against 11,397 mcf in the 12 months before.Last 12 months: 7,310 mcfmcf per monthbbl per month005002001,0004001,5006002,0008002,5001,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 36% over the last 12 monthsMonthly gas production and oil for LISKA 01, Aug 2023 to Jul 2026. Gas output fell 36% over the last 12 months. 7,310 mcf in the 12 months through Jul 2026, against 11,397 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month005002001,0004001,5006002,0008002,5001,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

98% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
98% of the gas went to a processing plant in the last 12 monthsShare of LISKA 01 gas by disposition code each month, Aug 2023 to Jul 2026. 98% of the gas went to a processing plant in the last 12 months.Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
98% of the gas went to a processing plant in the last 12 monthsShare of LISKA 01 gas by disposition code each month, Aug 2023 to Jul 2026. 98% of the gas went to a processing plant in the last 12 months.Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    98% · 7,159 mcf

  • Lease fuel (1)

    2.1% · 151 mcf

Who has run this lease

The operator changed once, most recently in Mar 2023

Operators of this lease over timeEnsign Operating LLC, Jan 2020 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262020202120222023202420252026Changed Mar 2023Ensign Operating LLCJan 2020 to Feb 2023Marathon Oil Ef LLCMar 2023 to now
Operators of this lease over timeEnsign Operating LLC, Jan 2020 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262020202120222023202420252026Changed Mar 2023Ensign Operating LLCJan 2020 to Feb 2023Marathon Oil Ef LLCMar 2023 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on LISKA 01
API numberWell no.Status
42-255-3362013HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCCondensateGathers50Mar 1, 2023–
Enterprise Crude Pipeline LLCCondensateGathers50Mar 1, 2023–
Marathon Oil Ef LLCGas-well gasBuys100Mar 1, 2023–
Marathon Oil Ef LLCGas-well gasGathers100Mar 1, 2023–
Gulfmark Energy, Inc.CondensateGathers100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCGas-well gasGathers100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCGas-well gasBuys100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCCondensateGathers50Oct 1, 2019Oct 2, 2019
Enterprise Crude Oil LLCCondensateGathers25Oct 1, 2019Oct 2, 2019
Enterprise Crude Pipeline LLCCondensateGathers25Oct 1, 2019Oct 2, 2019

SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).

838.80 acres on the newest permit

Permits for Liska 01
API numberWell no.Acreson the permit
42-255-3362013H838.80

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

What ConocoPhillips told investors it received

Marathon Oil Ef LLC is linked to ConocoPhillips (MRO).
Realized prices reported by ConocoPhillips
QuarterOil$ per bblFiling
Q2 2026$99.40SEC filing
Q1 2026$73.47SEC filing
Q3 2025$66.13SEC filing
Q2 2025$64.23SEC filing
Q1 2025$71.65SEC filing

SourceConocoPhillips quarterly reports, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for LISKA 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil0026250$80.46$2.89
Jun 2026Marathon Oil48481381340$84.81$3.15
May 2026Marathon Oil2182188128120$102.13$2.94
Apr 2026Marathon Oil2822828067820$100.32$2.77
Mar 2026Marathon Oil4194198278030$91.38$3.04
Feb 2026Marathon Oil787841400$64.51$3.62
Jan 2026Marathon Oil4244246115970$60.04$7.72
Dec 2025Marathon Oil5075078147950$57.97$4.26
Nov 2025Marathon Oil4464466956800$60.06$3.79
Oct 2025Marathon Oil3443447227070$60.89$3.19
Sep 2025Marathon Oil4374379038850$63.96$2.97
Aug 2025Marathon Oil4084089158990$64.86$2.91
Jul 2025Marathon Oil3913911,1181,0740$68.39$3.20
Jun 2025Marathon Oil2512511,0601,0200$68.17$3.02
May 2025Marathon Oil5175171,3201,2800$62.17$3.12
Apr 2025Marathon Oil3383387166960$63.54$3.42
Mar 2025Marathon Oil4204201,1941,1650$68.24$4.12
Feb 2025Marathon Oil3833839289080$71.53$4.19
Jan 2025Marathon Oil4274271,2331,2020$75.74$4.13
Dec 2024Marathon Oil1441441,1161,0890$70.12$3.01
Nov 2024Marathon Oil1761766436300$69.95$2.12
Oct 2024Marathon Oil1731736065790$71.99$2.20
Sep 2024Marathon Oil26262652480$70.24$2.28
Aug 2024Marathon Oil2522521,1981,0180$76.68$1.99
Jul 2024Marathon Oil2642641,5031,2410$81.80$2.07
Jun 2024Marathon Oil3703701,2861,0990$79.77$2.54
May 2024Marathon Oil8388382,4241,9900$80.02$2.12
Apr 2024Marathon Oil5775772,0551,7020$85.35$1.60
Mar 2024Marathon Oil5235231,9741,6280$81.28$1.49
Feb 2024Marathon Oil4704701,8641,5480$77.25$1.72
Jan 2024Marathon Oil1771774644170$74.15$3.18
Dec 2023Marathon Oil3643641,4051,2110$71.90$2.52
Nov 2023Marathon Oil2892891,5751,3610$77.69$2.71
Oct 2023Marathon Oil2182181,7001,4130$85.64$2.98
Sep 2023Marathon Oil1311311,6461,4110$89.43$2.64
Aug 2023Marathon Oil1531532,0261,7700$81.39$2.58

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

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Marathon Oil Ef LLC in Karnes County

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