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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

995mcf gas, last 12 months−2% vs prior year
RRC lease
02-276908

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Where it sits

This county

Live Oak CountyLive OakAtascosaGoliadMcMullenKarnesSan PatricioBeeLive Oak County
Live Oak County
Oil, last 12 months
99 bbl
Gas in Jul 2026
83 mcf

Production by month

Gas output held steady over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output held steady over the last 12 monthsMonthly gas production and oil for THREE SISTERS 01, Aug 2023 to Jul 2026. Gas output held steady over the last 12 months. 995 mcf in the 12 months through Jul 2026, against 1,014 mcf in the 12 months before.Last 12 months: 995 mcfmcf per monthbbl per month001,0001002,0002003,0003004,000400Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output held steady over the last 12 monthsMonthly gas production and oil for THREE SISTERS 01, Aug 2023 to Jul 2026. Gas output held steady over the last 12 months. 995 mcf in the 12 months through Jul 2026, against 1,014 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month001,0001002,0002003,0003004,000400Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

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

All 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. All 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
All 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. All 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.

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
42-297-3547722HActive

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).

6,372.87 acres on the newest permit

Permits for Three Sisters 01
API numberWell no.Acreson the permit
42-297-3547722H6,372.87

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 THREE SISTERS 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil101083830$80.46$2.89
Jun 2026Marathon Oil441061060$84.81$3.15
May 2026Marathon Oil0087870$102.13$2.94
Apr 2026Marathon Oil7769690$100.32$2.77
Mar 2026Marathon Oil373794940$91.38$3.04
Feb 2026Marathon Oil7738380$64.51$3.62
Jan 2026Marathon Oil1175750$60.04$7.72
Dec 2025Marathon Oil7786860$57.97$4.26
Nov 2025Marathon Oil0088880$60.06$3.79
Oct 2025Marathon Oil2289890$60.89$3.19
Sep 2025Marathon Oil111189890$63.96$2.97
Aug 2025Marathon Oil131391910$64.86$2.91
Jul 2025Marathon Oil151594940$68.39$3.20
Jun 2025Marathon Oil121294940$68.17$3.02
May 2025Marathon Oil11111071070$62.17$3.12
Apr 2025Marathon Oil16161011010$63.54$3.42
Mar 2025Marathon Oil0068680$68.24$4.12
Feb 2025Marathon Oil0091910$71.53$4.19
Jan 2025Marathon Oil111189890$75.74$4.13
Dec 2024Marathon Oil111183830$70.12$3.01
Nov 2024Marathon Oil5594940$69.95$2.12
Oct 2024Marathon Oil1157570$71.99$2.20
Sep 2024Marathon Oil202061610$70.24$2.28
Aug 2024Marathon Oil101075750$76.68$1.99
Jul 2024Marathon Oil565689890$81.80$2.07
Jun 2024Marathon Oil474796960$79.77$2.54
May 2024Marathon Oil20201211210$80.02$2.12
Apr 2024Marathon Oil19191171170$85.35$1.60
Mar 2024Marathon Oil3543543,9133,9130$81.28$1.49
Feb 2024Marathon Oil757519190$77.25$1.72
Jan 2024Marathon Oil151565650$74.15$3.18
Dec 2023Marathon Oil00000$71.90$2.52
Nov 2023Marathon Oil323277770$77.69$2.71
Oct 2023Marathon Oil00000$85.64$2.98
Sep 2023Marathon Oil00000$89.43$2.64
Aug 2023Marathon Oil161663630$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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