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Royalty Clerk

Texas gas well

Producing

DULLYE 01

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

1 well

336,381mcf gas, last 12 months−66% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Sugarkane (Eagle Ford)
RRC lease
02-296537

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
30,093 bbl
Gas in Jul 2026
20,462 mcf

Production by month

Gas output fell 66% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 66% over the last 12 monthsMonthly gas production and oil for DULLYE 01, Apr 2024 to Jul 2026. Gas output fell 66% over the last 12 months. 336,381 mcf in the 12 months through Jul 2026, against 1,003,071 mcf in the 12 months before.Last 12 months: 336,381 mcfmcf per monthbbl per month0050k10k100k20k150k30k200k40k250k50kApr 24JulOctJan 25AprJulOctJan 26AprJul
Gas output fell 66% over the last 12 monthsMonthly gas production and oil for DULLYE 01, Apr 2024 to Jul 2026. Gas output fell 66% over the last 12 months. 336,381 mcf in the 12 months through Jul 2026, against 1,003,071 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month0050k10k100k20k150k30k200k40k250k50kJul 24Jan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

94% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
94% of the gas went to a processing plant in the last 12 monthsShare of DULLYE 01 gas by disposition code each month, Apr 2024 to Jul 2026. 94% 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%Apr 24JulOctJan 25AprJulOctJan 26AprJul
94% of the gas went to a processing plant in the last 12 monthsShare of DULLYE 01 gas by disposition code each month, Apr 2024 to Jul 2026. 94% of the gas went to a processing plant in the last 12 months.Share of gas by disposition code0%50%100%Jul 24Jan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    94% · 317,460 mcf

  • Lease fuel (1)

    5.6% · 18,921 mcf

1 well on this lease

Wells on DULLYE 01
API numberWell no.Status
42-255-3789307HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Enterprise Crude Oil LLCCondensateGathers50Jan 25, 2024
Enterprise Crude Pipeline LLCCondensateGathers50Jan 25, 2024
Marathon Oil Ef LLCGas-well gasBuys100Jan 25, 2024
Marathon Oil Ef LLCGas-well gasGathers100Jan 25, 2024

SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).

Who buys my oilOil price check

704 acres on the newest permit

Check your decimal on this lease
Permits for Dullye 01
API numberWell no.Acreson the permit
42-255-3789307H704

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

28 months, newest first

Ledger for DULLYE 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20261,9671,96720,46218,9610$80.46$2.89
Jun 20262,0092,00920,48118,3180$84.81$3.15
May 20262,1202,12022,92521,3350$102.13$2.94
Apr 20262,3312,33124,57323,2110$100.32$2.77
Mar 20262,0032,00328,59627,0440$91.38$3.04
Feb 20262,4962,49628,64427,1670$64.51$3.62
Jan 20262,0212,02125,78924,4170$60.04$7.72
Dec 20252,9942,99429,20927,7630$57.97$4.26
Nov 20252,5932,59329,87928,2790$60.06$3.79
Oct 20252,9892,98935,06333,0630$60.89$3.19
Sep 20252,9952,99534,11632,6370$63.96$2.97
Aug 20253,5753,57536,64435,2650$64.86$2.91
Jul 20254,0974,09734,60633,4850$68.39$3.20
Jun 20254,0344,03440,06539,1500$68.17$3.02
May 20255,1255,12549,88848,8380$62.17$3.12
Apr 20255,4545,45455,38854,3010$63.54$3.42
Mar 20256,9056,90565,52464,4730$68.24$4.12
Feb 20256,8576,85769,60868,6490$71.53$4.19
Jan 20259,8029,80285,28784,3720$75.74$4.13
Dec 202410,98010,98094,28993,3170$70.12$3.01
Nov 202411,50311,50396,41795,5520$69.95$2.12
Oct 202414,04414,044118,852117,9020$71.99$2.20
Sep 202417,73817,738141,367140,1550$70.24$2.28
Aug 202419,73919,739151,780151,7100$76.68$1.99
Jul 202421,62421,624154,113154,1130$81.80$2.07
Jun 202424,80424,804179,892179,2850$79.77$2.54
May 202432,48032,480227,118226,1050$80.02$2.12
Apr 20245,3365,33626,52826,2660$85.35$1.60

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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