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Texas gas well

Producing

THREE SISTERS 01

Three Sisters 01 is a gas well in Live Oak County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Eagle Ford) field.

1 well

12,317mcf gas, last 12 months−45% vs prior year
Operator
Marathon Oil Ef LLC
County
Live Oak County
Field
Sugarkane (Eagle Ford)
RRC lease
02-268743

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Where it sits

This county

Live Oak CountyLive OakAtascosaGoliadMcMullenKarnesSan PatricioBeeLive Oak County
Live Oak County
Oil, last 12 months
2,641 bbl
Gas in Jul 2026
177 mcf

Checks stopped on this lease?

  • Sales

    Sales over the last 3 months fell to 13% of the 9 months before.

SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.

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Production by month

Gas output fell 45% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 45% over the last 12 monthsMonthly gas production and oil for THREE SISTERS 01, Aug 2023 to Jul 2026. Gas output fell 45% over the last 12 months. 12,317 mcf in the 12 months through Jul 2026, against 22,352 mcf in the 12 months before.Last 12 months: 12,317 mcfmcf per monthbbl per month002,0005004,0001,0006,0001,5008,0002,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 45% over the last 12 monthsMonthly gas production and oil for THREE SISTERS 01, Aug 2023 to Jul 2026. Gas output fell 45% over the last 12 months. 12,317 mcf in the 12 months through Jul 2026, against 22,352 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,0005004,0001,0006,0001,5008,0002,000Jan 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 THREE SISTERS 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 THREE SISTERS 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% · 12,062 mcf

  • Lease fuel (1)

    2.1% · 255 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 THREE SISTERS 01
API numberWell no.Status
42-297-3515611HActive

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).

Who buys my oilOil price check

6,464.11 acres on the newest permit

Check your decimal on this lease
Permits for Three Sisters 01
API numberWell no.Acreson the permit
42-297-3515611H6,464.11

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

Unit decimal checker

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 THREE SISTERS 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil1891891771720$80.46$2.89
Jun 2026Marathon Oil88881661610$84.81$3.15
May 2026Marathon Oil1,3521,3521541540$102.13$2.94
Apr 2026Marathon Oil80801,3131,2780$100.32$2.77
Mar 2026Marathon Oil1121121,4951,4670$91.38$3.04
Feb 2026Marathon Oil1121121,7261,6840$64.51$3.62
Jan 2026Marathon Oil2242241,7421,7080$60.04$7.72
Dec 2025Marathon Oil1131139209080$57.97$4.26
Nov 2025Marathon Oil1431431,4651,4360$60.06$3.79
Oct 2025Marathon Oil1041041,0661,0430$60.89$3.19
Sep 2025Marathon Oil46469579360$63.96$2.97
Aug 2025Marathon Oil78781,1361,1150$64.86$2.91
Jul 2025Marathon Oil1141146,3296,1970$68.39$3.20
Jun 2025Marathon Oil1571571,1861,1680$68.17$3.02
May 2025Marathon Oil2862861,6661,6420$62.17$3.12
Apr 2025Marathon Oil2252251,5171,5020$63.54$3.42
Mar 2025Marathon Oil3493491,3011,2960$68.24$4.12
Feb 2025Marathon Oil2332338988940$71.53$4.19
Jan 2025Marathon Oil2962961,2111,2080$75.74$4.13
Dec 2024Marathon Oil2732731,3121,3040$70.12$3.01
Nov 2024Marathon Oil2172171,1151,1080$69.95$2.12
Oct 2024Marathon Oil2352351,0009920$71.99$2.20
Sep 2024Marathon Oil2452451,3791,3690$70.24$2.28
Aug 2024Marathon Oil3233233,4383,4000$76.68$1.99
Jul 2024Marathon Oil3533535,1255,0760$81.80$2.07
Jun 2024Marathon Oil004,0644,0200$79.77$2.54
May 2024Marathon Oil001,8231,8040$80.02$2.12
Apr 2024Marathon Oil0045450$85.35$1.60
Mar 2024Marathon Oil007157100$81.28$1.49
Feb 2024Marathon Oil002,7812,7630$77.25$1.72
Jan 2024Marathon Oil00000$74.15$3.18
Dec 2023Marathon Oil9911110$71.90$2.52
Nov 2023Marathon Oil33550$77.69$2.71
Oct 2023Marathon Oil00110$85.64$2.98
Sep 2023Marathon Oil0034340$89.43$2.64
Aug 2023Marathon Oil4184182,9672,9550$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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Nearby

This lease belongs to

OperatorMarathon Oil Ef LLCFieldSugarkane (Eagle Ford)CountyLive Oak County

Marathon Oil Ef LLC in Live Oak County

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Sugarkane (Eagle Ford) field

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