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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

8,953mcf gas, last 12 months−61% vs prior year
Operator
Marathon Oil Ef LLC
County
Live Oak County
Field
Sugarkane (Eagle Ford)
RRC lease
02-268739

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Where it sits

This county

Live Oak CountyLive OakAtascosaGoliadMcMullenKarnesSan PatricioBeeLive Oak County
Live Oak County
Oil, last 12 months
2,203 bbl
Gas in Jul 2026
66 mcf

Checks stopped on this lease?

  • Sales

    Sales over the last 3 months fell to 7% 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 61% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 61% over the last 12 monthsMonthly gas production and oil for THREE SISTERS 01, Aug 2023 to Jul 2026. Gas output fell 61% over the last 12 months. 8,953 mcf in the 12 months through Jul 2026, against 22,816 mcf in the 12 months before.Last 12 months: 8,953 mcfmcf per monthbbl per month001,0002002,0004003,0006004,000800Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 61% over the last 12 monthsMonthly gas production and oil for THREE SISTERS 01, Aug 2023 to Jul 2026. Gas output fell 61% over the last 12 months. 8,953 mcf in the 12 months through Jul 2026, against 22,816 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month001,0002002,0004003,0006004,000800Jan 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% · 8,800 mcf

  • Lease fuel (1)

    1.7% · 153 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
42-297-3514513HActive

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
42-297-3514513H6,464.11

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 Oil12912966650$80.46$2.89
Jun 2026Marathon Oil717174720$84.81$3.15
May 2026Marathon Oil73773774740$102.13$2.94
Apr 2026Marathon Oil82826306190$100.32$2.77
Mar 2026Marathon Oil1021027036950$91.38$3.04
Feb 2026Marathon Oil1291299249090$64.51$3.62
Jan 2026Marathon Oil1371371,2131,1860$60.04$7.72
Dec 2025Marathon Oil1321329989830$57.97$4.26
Nov 2025Marathon Oil1421421,2991,2720$60.06$3.79
Oct 2025Marathon Oil1551551,3721,3430$60.89$3.19
Sep 2025Marathon Oil1801808898770$63.96$2.97
Aug 2025Marathon Oil2072077117050$64.86$2.91
Jul 2025Marathon Oil2042042,2682,2260$68.39$3.20
Jun 2025Marathon Oil1871871,3871,3660$68.17$3.02
May 2025Marathon Oil2032031,4401,4170$62.17$3.12
Apr 2025Marathon Oil2112112,0972,0750$63.54$3.42
Mar 2025Marathon Oil3293292,3682,3450$68.24$4.12
Feb 2025Marathon Oil2572571,4291,4230$71.53$4.19
Jan 2025Marathon Oil2702701,9231,9050$75.74$4.13
Dec 2024Marathon Oil2662662,4852,4640$70.12$3.01
Nov 2024Marathon Oil4314311,4951,4910$69.95$2.12
Oct 2024Marathon Oil3093091,8541,8400$71.99$2.20
Sep 2024Marathon Oil3433431,9481,9350$70.24$2.28
Aug 2024Marathon Oil3793792,1222,1040$76.68$1.99
Jul 2024Marathon Oil3413412,3202,3030$81.80$2.07
Jun 2024Marathon Oil5315313,8373,8210$79.77$2.54
May 2024Marathon Oil5365362,5042,4980$80.02$2.12
Apr 2024Marathon Oil4934932,3732,3680$85.35$1.60
Mar 2024Marathon Oil1461466146100$81.28$1.49
Feb 2024Marathon Oil1611611,4841,4760$77.25$1.72
Jan 2024Marathon Oil2272271,1521,1450$74.15$3.18
Dec 2023Marathon Oil2092094034000$71.90$2.52
Nov 2023Marathon Oil4214218758720$77.69$2.71
Oct 2023Marathon Oil3233231,0381,0340$85.64$2.98
Sep 2023Marathon Oil2572576166140$89.43$2.64
Aug 2023Marathon Oil19019099990$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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