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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

98,387mcf gas, last 12 months+48% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Sugarkane (Eagle Ford)
RRC lease
02-294579

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
17,660 bbl
Gas in Jul 2026
6,769 mcf

Production by month

Gas output rose 48% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output rose 48% over the last 12 monthsMonthly gas production and oil for DULLYE 01, Aug 2023 to Jul 2026. Gas output rose 48% over the last 12 months. 98,387 mcf in the 12 months through Jul 2026, against 66,623 mcf in the 12 months before.Last 12 months: 98,387 mcfmcf per monthbbl per month0020k2,00040k4,00060k6,00080k8,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output rose 48% over the last 12 monthsMonthly gas production and oil for DULLYE 01, Aug 2023 to Jul 2026. Gas output rose 48% over the last 12 months. 98,387 mcf in the 12 months through Jul 2026, against 66,623 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month0020k2,00040k4,00060k6,00080k8,000Jan 24JulJan 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, Aug 2023 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%Oct 23Jan 24AprJulOctJan 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, Aug 2023 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%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    94% · 92,819 mcf

  • Lease fuel (1)

    5.7% · 5,568 mcf

Who has run this lease

The operator changed once, most recently in Mar 2023

Operators of this lease over timeEnsign Operating LLC, Jan 2023 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262023202420252026Changed Mar 2023Ensign Operating LLCJan 2023 to Feb 2023Marathon Oil Ef LLCMar 2023 to now
Operators of this lease over timeEnsign Operating LLC, Jan 2023 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262023202420252026Changed Mar 2023Ensign Operating LLCJan 2023 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 DULLYE 01
API numberWell no.Status
42-255-3748205HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
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

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
42-255-3748205H704

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 DULLYE 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil8488486,7696,2730$80.46$2.89
Jun 2026Marathon Oil8268268,4317,5420$84.81$3.15
May 2026Marathon Oil1,0981,0987,2556,7520$102.13$2.94
Apr 2026Marathon Oil8258252,8592,7010$100.32$2.77
Mar 2026Marathon Oil4044041,1081,0480$91.38$3.04
Feb 2026Marathon Oil2,1702,1707,7097,3130$64.51$3.62
Jan 2026Marathon Oil1,9551,9557,0766,7010$60.04$7.72
Dec 2025Marathon Oil1,9951,9958,8458,4080$57.97$4.26
Nov 2025Marathon Oil2,4172,4179,0308,5480$60.06$3.79
Oct 2025Marathon Oil1,7451,74511,46110,8080$60.89$3.19
Sep 2025Marathon Oil1,5281,52812,44211,9030$63.96$2.97
Aug 2025Marathon Oil1,8491,84915,40214,8220$64.86$2.91
Jul 2025Marathon Oil2,0512,05119,25918,6350$68.39$3.20
Jun 2025Marathon Oil3,0443,04428,73428,0780$68.17$3.02
May 2025Marathon Oil68768716,06215,7240$62.17$3.12
Apr 2025Marathon Oil2712718468290$63.54$3.42
Mar 2025Marathon Oil1441443813750$68.24$4.12
Feb 2025Marathon Oil00000$71.53$4.19
Jan 2025Marathon Oil00000$75.74$4.13
Dec 2024Marathon Oil00000$70.12$3.01
Nov 2024Marathon Oil1010110$69.95$2.12
Oct 2024Marathon Oil00000$71.99$2.20
Sep 2024Marathon Oil1781789329150$70.24$2.28
Aug 2024Marathon Oil92924083990$76.68$1.99
Jul 2024Marathon Oil1271272732730$81.80$2.07
Jun 2024Marathon Oil00000$79.77$2.54
May 2024Marathon Oil00000$80.02$2.12
Apr 2024Marathon Oil2727220$85.35$1.60
Mar 2024Marathon Oil7307306,4636,4330$81.28$1.49
Feb 2024Marathon Oil3,0773,07724,83123,7450$77.25$1.72
Jan 2024Marathon Oil3,1613,16127,30826,1800$74.15$3.18
Dec 2023Marathon Oil4,0544,05435,18433,7100$71.90$2.52
Nov 2023Marathon Oil4,2604,26037,10335,7350$77.69$2.71
Oct 2023Marathon Oil4,7404,74041,23839,7910$85.64$2.98
Sep 2023Marathon Oil5,2835,28346,44045,0360$89.43$2.64
Aug 2023Marathon Oil6,1216,12154,28652,7460$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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