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Texas gas well

Producing

DOUGLAS 01

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

1 well

37,478mcf gas, last 12 months−52% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Sugarkane (Eagle Ford)
RRC lease
02-280456

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
5,617 bbl
Gas in Jul 2026
1,953 mcf

Production by month

Gas output fell 52% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 52% over the last 12 monthsMonthly gas production and oil for DOUGLAS 01, Aug 2023 to Jul 2026. Gas output fell 52% over the last 12 months. 37,478 mcf in the 12 months through Jul 2026, against 77,370 mcf in the 12 months before.Last 12 months: 37,478 mcfmcf per monthbbl per month002,5005005,0001,0007,5001,50010k2,00012.5k2,500Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 52% over the last 12 monthsMonthly gas production and oil for DOUGLAS 01, Aug 2023 to Jul 2026. Gas output fell 52% over the last 12 months. 37,478 mcf in the 12 months through Jul 2026, against 77,370 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,5005005,0001,0007,5001,50010k2,00012.5k2,500Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

95% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
95% of the gas went to a processing plant in the last 12 monthsShare of DOUGLAS 01 gas by disposition code each month, Aug 2023 to Jul 2026. 95% 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
95% of the gas went to a processing plant in the last 12 monthsShare of DOUGLAS 01 gas by disposition code each month, Aug 2023 to Jul 2026. 95% 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)

    95% · 39,789 mcf

  • Lease fuel (1)

    5.1% · 2,126 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 DOUGLAS 01
API numberWell no.Status
42-255-3445804HActive

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

341.26 acres on the newest permit

Check your decimal on this lease
Permits for Douglas 01
API numberWell no.Acreson the permit
42-255-3445804H341.26

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 DOUGLAS 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil001,9531,8310$80.46$2.89
Jun 2026Marathon Oil3423422,3702,1620$84.81$3.15
May 2026Marathon Oil5405404,0213,7050$102.13$2.94
Apr 2026Marathon Oil7117114,8854,6240$100.32$2.77
Mar 2026Marathon Oil3923922,5012,3750$91.38$3.04
Feb 2026Marathon Oil7777775,1804,9390$64.51$3.62
Jan 2026Marathon Oil11000$60.04$7.72
Dec 2025Marathon Oil383818170$57.97$4.26
Nov 2025Marathon Oil6606603,7933,6270$60.06$3.79
Oct 2025Marathon Oil6886884,4944,3020$60.89$3.19
Sep 2025Marathon Oil7007004,2314,0590$63.96$2.97
Aug 2025Marathon Oil7687684,0323,8700$64.86$2.91
Jul 2025Marathon Oil7157154,4374,2780$68.39$3.20
Jun 2025Marathon Oil6786786,9146,7290$68.17$3.02
May 2025Marathon Oil82282211,58811,2520$62.17$3.12
Apr 2025Marathon Oil87187111,22310,8920$63.54$3.42
Mar 2025Marathon Oil99499411,45311,1490$68.24$4.12
Feb 2025Marathon Oil7097094,3594,2650$71.53$4.19
Jan 2025Marathon Oil4234233,0492,9800$75.74$4.13
Dec 2024Marathon Oil6396394,7544,6460$70.12$3.01
Nov 2024Marathon Oil7767764,6744,5800$69.95$2.12
Oct 2024Marathon Oil7687684,3694,3030$71.99$2.20
Sep 2024Marathon Oil7387384,7294,6650$70.24$2.28
Aug 2024Marathon Oil9189185,8215,7530$76.68$1.99
Jul 2024Marathon Oil1,8551,8558,1598,0460$81.80$2.07
Jun 2024Marathon Oil2112113,0632,9760$79.77$2.54
May 2024Marathon Oil2722725,0544,8080$80.02$2.12
Apr 2024Marathon Oil2372373,9433,8620$85.35$1.60
Mar 2024Marathon Oil3653653,4273,3530$81.28$1.49
Feb 2024Marathon Oil2122122,8212,7590$77.25$1.72
Jan 2024Marathon Oil4404406,0865,9760$74.15$3.18
Dec 2023Marathon Oil3703704,5044,4250$71.90$2.52
Nov 2023Marathon Oil3993994,1764,1110$77.69$2.71
Oct 2023Marathon Oil3103103,1523,1090$85.64$2.98
Sep 2023Marathon Oil00000$89.43$2.64
Aug 2023Marathon Oil00000$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)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

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Sugarkane (Eagle Ford) field

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