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Royalty Clerk

Texas gas well

Producing

DEMING-LONG SA1

Deming-Long Sa1 is a gas well in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Eagle Ford) field.

1 well

956,530mcf gas, last 12 months
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Sugarkane (Eagle Ford)
RRC lease
02-298466

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
88,443 bbl
Gas in Jul 2026
52,879 mcf

Production by month

Gas output fell 62% since Sep 2024

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 62% since Sep 2024Monthly gas production and oil for DEMING-LONG SA1, Sep 2024 to Jul 2026. Gas output fell 62% since Sep 2024. Monthly average of 56,256 mcf in the latest 3 months, against 149,391 mcf in the first 3.Last 12 months: 956,530 mcfmcf per monthbbl per month0050k10k100k20k150k30k200k40k250k50kOct 24Jan 25AprJulOctJan 26AprJul
Gas output fell 62% since Sep 2024Monthly gas production and oil for DEMING-LONG SA1, Sep 2024 to Jul 2026. Gas output fell 62% since Sep 2024. Monthly average of 56,256 mcf in the latest 3 months, against 149,391 mcf in the first 3.Last 12 monthsmcf per monthbbl per month0050k10k100k20k150k30k200k40k250k50kJan 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 DEMING-LONG SA1 gas by disposition code each month, Sep 2024 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 24Jan 25AprJulOctJan 26AprJul
All of the gas went to a processing plant in the last 12 monthsShare of DEMING-LONG SA1 gas by disposition code each month, Sep 2024 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 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on DEMING-LONG SA1
API numberWell no.Status
42-255-380541HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Enterprise Crude Oil LLCCondensateGathers50Sep 30, 2024
Enterprise Crude Pipeline LLCCondensateGathers50Sep 30, 2024
Marathon Oil Ef LLCGas-well gasBuys100Sep 30, 2024
Marathon Oil Ef LLCGas-well gasGathers100Sep 30, 2024

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

Who buys my oilOil price check

774.38 acres on the newest permit

  • Worth asking

    An allocation well is on this lease

    A well drilled across several tracts shares its production by an allocation formula, so the decimal is not always your acres over the unit acres. Ask the operator for the allocation formula and the tract factor for your land.

  • Worth asking

    A Rule 37 case is listed

    The RRC permit records list a Rule 37 case. This does not establish your royalty share. Ask for the permit and unit plat for your well.

Check your decimal on this lease
Permits for Deming-Long Sa1
API numberWell no.Acreson the permit
42-255-380541H774.38

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

23 months, newest first

Ledger for DEMING-LONG SA1
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20264,6964,69652,87952,8790$80.46$2.89
Jun 20265,0475,04755,80855,8080$84.81$3.15
May 20265,7805,78060,08060,0800$102.13$2.94
Apr 20265,7555,75566,50566,5050$100.32$2.77
Mar 20266,0386,03869,72769,7270$91.38$3.04
Feb 20266,3886,38872,10772,1070$64.51$3.62
Jan 20269,5929,59289,66589,6650$60.04$7.72
Dec 20255,8775,87762,55562,5550$57.97$4.26
Nov 20259,5409,540101,149101,1490$60.06$3.79
Oct 20257,9907,99091,01191,0110$60.89$3.19
Sep 20259,7589,758116,622116,6220$63.96$2.97
Aug 202511,98211,982118,422118,4220$64.86$2.91
Jul 20256,4586,45859,86759,8670$68.39$3.20
Jun 20256,7896,78963,93063,9300$68.17$3.02
May 20258,0568,05678,59678,5960$62.17$3.12
Apr 20259,8209,82095,53795,5370$63.54$3.42
Mar 202514,01914,019134,541134,5410$68.24$4.12
Feb 202514,95414,954132,740132,7400$71.53$4.19
Jan 202521,00121,001179,829179,8290$75.74$4.13
Dec 202422,84522,845208,450208,4500$70.12$3.01
Nov 202425,40625,406209,640209,6400$69.95$2.12
Oct 202429,37229,372237,387237,3870$71.99$2.20
Sep 202487871,1461,1460$70.24$2.28

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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