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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

7,831mcf gas, last 12 months−67% vs prior year
Operator
Marathon Oil Ef LLC
County
Live Oak County
Field
Sugarkane (Eagle Ford)
RRC lease
02-268740

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Where it sits

This county

Live Oak CountyLive OakAtascosaGoliadMcMullenKarnesSan PatricioBeeLive Oak County
Live Oak County
Oil, last 12 months
2,355 bbl
Gas in Jul 2026
93 mcf

Checks stopped on this lease?

  • Sales

    Sales over the last 3 months fell to 8% of the 9 months before.

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

See why checks stop on this lease

Production by month

Gas output fell 67% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 67% over the last 12 monthsMonthly gas production and oil for THREE SISTERS 01, Aug 2023 to Jul 2026. Gas output fell 67% over the last 12 months. 7,831 mcf in the 12 months through Jul 2026, against 24,086 mcf in the 12 months before.Last 12 months: 7,831 mcfmcf per monthbbl per month002,0002004,0004006,0006008,000800Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 67% over the last 12 monthsMonthly gas production and oil for THREE SISTERS 01, Aug 2023 to Jul 2026. Gas output fell 67% over the last 12 months. 7,831 mcf in the 12 months through Jul 2026, against 24,086 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,0002004,0004006,0006008,000800Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

99% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
99% 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. 99% 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
99% 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. 99% 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)

    99% · 7,735 mcf

  • Lease fuel (1)

    1.2% · 96 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
42-297-3514612HActive

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
42-297-3514612H6,464.11

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 Oil16016093910$80.46$2.89
Jun 2026Marathon Oil10710769670$84.81$3.15
May 2026Marathon Oil44644642420$102.13$2.94
Apr 2026Marathon Oil86865335230$100.32$2.77
Mar 2026Marathon Oil1091097877770$91.38$3.04
Feb 2026Marathon Oil1841849719600$64.51$3.62
Jan 2026Marathon Oil1211213123120$60.04$7.72
Dec 2025Marathon Oil1481487917830$57.97$4.26
Nov 2025Marathon Oil1851851,0231,0110$60.06$3.79
Oct 2025Marathon Oil2092097217110$60.89$3.19
Sep 2025Marathon Oil2872871,2031,1870$63.96$2.97
Aug 2025Marathon Oil3133131,2861,2710$64.86$2.91
Jul 2025Marathon Oil3453452,0462,0130$68.39$3.20
Jun 2025Marathon Oil3523521,1021,0910$68.17$3.02
May 2025Marathon Oil3653656,6446,5020$62.17$3.12
Apr 2025Marathon Oil1151159028920$63.54$3.42
Mar 2025Marathon Oil2942949249200$68.24$4.12
Feb 2025Marathon Oil3293299099090$71.53$4.19
Jan 2025Marathon Oil2392391,0301,0270$75.74$4.13
Dec 2024Marathon Oil3273272,4152,3940$70.12$3.01
Nov 2024Marathon Oil2932933,0463,0170$69.95$2.12
Oct 2024Marathon Oil4334331,5301,5250$71.99$2.20
Sep 2024Marathon Oil4464461,1921,1870$70.24$2.28
Aug 2024Marathon Oil5135132,3462,3290$76.68$1.99
Jul 2024Marathon Oil4664661,6391,6330$81.80$2.07
Jun 2024Marathon Oil7587582,2142,2100$79.77$2.54
May 2024Marathon Oil5175172,6532,6500$80.02$2.12
Apr 2024Marathon Oil1171175,6215,5700$85.35$1.60
Mar 2024Marathon Oil2752752,6602,6430$81.28$1.49
Feb 2024Marathon Oil3183184404370$77.25$1.72
Jan 2024Marathon Oil14714744440$74.15$3.18
Dec 2023Marathon Oil4324322212210$71.90$2.52
Nov 2023Marathon Oil00000$77.69$2.71
Oct 2023Marathon Oil1711712422410$85.64$2.98
Sep 2023Marathon Oil4714712,1372,1290$89.43$2.64
Aug 2023Marathon Oil3963961,8911,8830$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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