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Texas gas well

Producing

MURPHY-SINCLAIR UNIT AC

Murphy-Sinclair Unit Ac is a gas well in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Austin Chalk) field.

1 well

26,299mcf gas, last 12 months−20% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Sugarkane (Austin Chalk)
RRC lease
02-279201

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
5,802 bbl
Gas in Jul 2026
3,383 mcf

Production by month

Gas output fell 20% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 20% over the last 12 monthsMonthly gas production and oil for MURPHY-SINCLAIR UNIT AC, Aug 2023 to Jul 2026. Gas output fell 20% over the last 12 months. 26,299 mcf in the 12 months through Jul 2026, against 32,682 mcf in the 12 months before.Last 12 months: 26,299 mcfmcf per monthbbl per month002,0005004,0001,0006,0001,5008,0002,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 20% over the last 12 monthsMonthly gas production and oil for MURPHY-SINCLAIR UNIT AC, Aug 2023 to Jul 2026. Gas output fell 20% over the last 12 months. 26,299 mcf in the 12 months through Jul 2026, against 32,682 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,0005004,0001,0006,0001,5008,0002,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

68% of the gas went to a processing plant in the last 12 months

Flaring peaked at 4.7% of the gas in Sep 2025.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
68% of the gas went to a processing plant in the last 12 monthsShare of MURPHY-SINCLAIR UNIT AC gas by disposition code each month, Aug 2023 to Jul 2026. 68% of the gas went to a processing plant in the last 12 months. Flaring peaked at 4.7% of the gas in Sep 2025.Share of the lease’s gas by disposition code, per month0%50%100%Flared 4.7%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
68% of the gas went to a processing plant in the last 12 monthsShare of MURPHY-SINCLAIR UNIT AC gas by disposition code each month, Aug 2023 to Jul 2026. 68% of the gas went to a processing plant in the last 12 months. Flaring peaked at 4.7% of the gas in Sep 2025.Share of gas by disposition code0%50%100%Flared 4.7%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    68% · 20,761 mcf

  • Lease fuel (1)

    31% · 9,306 mcf

  • Flared (4)

    1.0% · 303 mcf

1.0% of the gas flared in the last 12 months. One month above 3%.

1 well on this lease

Wells on MURPHY-SINCLAIR UNIT AC
API numberWell no.Status
42-255-340919HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCCondensateGathers20Jul 1, 2022–
Harvest Midstream CompanyCondensateGathers20Jul 1, 2022–
Plains Pipeline L.p.CondensateGathers20Jul 1, 2022–
Reynolds Energy Transport LLCCondensateGathers20Jul 1, 2022–
Trafigura Trading LLCCondensateGathers20Jul 1, 2022–
Marathon Oil Ef LLCGas-well gasBuys100Feb 13, 2015–
Marathon Oil Ef LLCGas-well gasGathers100Feb 13, 2015–
Enterprise Crude Oil LLCCondensateGathers5Sep 1, 2018Jul 1, 2022
Gulfmark Energy, Inc.CondensateGathers5Sep 1, 2018Jul 1, 2022
Harvest Midstream CompanyCondensateGathers5Sep 1, 2018Jul 1, 2022
Plains Pipeline L.p.CondensateGathers80Sep 1, 2018Jul 1, 2022
Trafigura Trading LLCCondensateGathers5Sep 1, 2018Jul 1, 2022

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

Who buys my oilOil price check

648.65 acres on the newest permit

Check your decimal on this lease
Permits for Murphy-Sinclair Unit Ac
API numberWell no.Acreson the permit
42-255-340919H648.65

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 MURPHY-SINCLAIR UNIT AC
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20267627423,3832,26415$80.46$2.89
Jun 20266937023,5002,45212$84.81$3.15
May 20268048013,7612,57725$102.13$2.94
Apr 20268928943,0982,04720$100.32$2.77
Mar 20269609713,7512,61436$91.38$3.04
Feb 20267827414,1722,85778$64.51$3.62
Jan 20264884583,2202,21371$60.04$7.72
Dec 202502000$57.97$4.26
Nov 20253230320$60.06$3.79
Oct 202556000$60.89$3.19
Sep 2025133434424716$63.96$2.97
Aug 20253713491,06774513$64.86$2.91
Jul 2025011,7451,1616$68.39$3.20
Jun 202529622,3261,58211$68.17$3.02
May 20254264292,4131,60413$62.17$3.12
Apr 20256966982,3961,5839$63.54$3.42
Mar 20256376262,7001,8499$68.24$4.12
Feb 20254494532,8591,92234$71.53$4.19
Jan 20254965013,9452,67467$75.74$4.13
Dec 20246716743,2012,16211$70.12$3.01
Nov 20246776772,7391,87614$69.95$2.12
Oct 20247117082,8071,93915$71.99$2.20
Sep 20247167132,7341,8617$70.24$2.28
Aug 20246997062,8171,93010$76.68$1.99
Jul 20247397353,1292,20318$81.80$2.07
Jun 20246956952,8121,97710$79.77$2.54
May 20248688853,8132,67218$80.02$2.12
Apr 20241,0401,0494,5832,99346$85.35$1.60
Mar 20241,2741,2434,9303,50221$81.28$1.49
Feb 20246687062,7882,4005$77.25$1.72
Jan 20241,2091,1805,9695,11132$74.15$3.18
Dec 20238428403,9853,2059$71.90$2.52
Nov 20239309374,4013,59920$77.69$2.71
Oct 20231,0301,0285,0924,2619$85.64$2.98
Sep 20231,0071,0064,7213,9587$89.43$2.64
Aug 20231,0701,0814,7443,92617$81.39$2.58

Flared above 3%

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

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This lease belongs to

OperatorMarathon Oil Ef LLCFieldSugarkane (Austin Chalk)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

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Sugarkane (Austin Chalk) field

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