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Producing

RSW-MIKKELSON-ROGERS SA

RSW-Mikkelson-Rogers Sa is an oil lease in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-2) field.

1 well

2,725bbl oil, last 12 months−73% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-11875

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Gas, last 12 months
2,641 mcf
Oil in Jul 2026
134 bbl

Production by month

Oil output fell 73% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 73% over the last 12 monthsMonthly oil production and gas for RSW-MIKKELSON-ROGERS SA, Aug 2023 to Jul 2026. Oil output fell 73% over the last 12 months. 2,725 bbl in the 12 months through Jul 2026, against 9,929 bbl in the 12 months before.Last 12 months: 2,725 bblbbl per monthmcf per month005001,0001,0002,0001,5003,0002,0004,0002,5005,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 73% over the last 12 monthsMonthly oil production and gas for RSW-MIKKELSON-ROGERS SA, Aug 2023 to Jul 2026. Oil output fell 73% over the last 12 months. 2,725 bbl in the 12 months through Jul 2026, against 9,929 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month005001,0001,0002,0001,5003,0002,0004,0002,5005,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuel

Flaring peaked at 4.4% of the gas in Jan 2024.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuelShare of RSW-MIKKELSON-ROGERS SA gas by disposition code each month, Aug 2023 to Jul 2026. Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 4.4% of the gas in Jan 2024.Share of the lease’s gas by disposition code, per month0%50%100%Mar 2024: fuel to plantFlared 4.4%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuelShare of RSW-MIKKELSON-ROGERS SA gas by disposition code each month, Aug 2023 to Jul 2026. Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 4.4% of the gas in Jan 2024.Share of gas by disposition code0%50%100%Mar 24: fuel to plantFlared 4.4%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    68% · 2,555 mcf

  • Lease fuel (1)

    31% · 1,157 mcf

  • Flared (4)

    1.0% · 36 mcf

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

1 well on this lease

Wells on RSW-MIKKELSON-ROGERS SA
API numberWell no.Status
42-255-365631HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCOilGathers25Jul 1, 2022–
Harvest Midstream CompanyOilGathers25Jul 1, 2022–
Reynolds Energy Transport LLCOilGathers25Jul 1, 2022–
Trafigura Trading LLCOilGathers25Jul 1, 2022–
Marathon Oil Ef LLCCasinghead gasBuys100Oct 28, 2019–
Marathon Oil Ef LLCCasinghead gasGathers100Oct 28, 2019–
Enterprise Crude Oil LLCOilGathers1Oct 28, 2019Jul 1, 2022
Gulfmark Energy, Inc.OilGathers1Oct 28, 2019Jul 1, 2022
Harvest Midstream CompanyOilGathers97Oct 28, 2019Jul 1, 2022
Trafigura Trading LLCOilGathers1Oct 28, 2019Jul 1, 2022

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

Who buys my oilOil price check

1,066.37 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 RSW-Mikkelson-Rogers Sa
API numberWell no.Acreson the permit
42-255-365631H1,066.37

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 RSW-MIKKELSON-ROGERS SA
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026134132115801$80.46$2.89
Jun 20261171263382442$84.81$3.15
May 20262782767465647$102.13$2.94
Apr 20264094094393216$100.32$2.77
Mar 20264224155343876$91.38$3.04
Feb 2026196195760$64.51$3.62
Jan 2026236244970$60.04$7.72
Dec 20255095062441862$57.97$4.26
Nov 20254063972091402$60.06$3.79
Oct 202500000$60.89$3.19
Sep 202500000$63.96$2.97
Aug 20251823000$64.86$2.91
Jul 20252412414632595$68.39$3.20
Jun 20252832843521913$68.17$3.02
May 20253753742921702$62.17$3.12
Apr 20253893915063114$63.54$3.42
Mar 20254144106483993$68.24$4.12
Feb 20252782952911792$71.53$4.19
Jan 20258468446564005$75.74$4.13
Dec 20249169157364743$70.12$3.01
Nov 20241,0971,1021,0076737$69.95$2.12
Oct 20241,2601,2661,3128866$71.99$2.20
Sep 20241,6011,6081,8681,3037$70.24$2.28
Aug 20242,2292,2013,8022,50322$76.68$1.99
Jul 20246256212,1071,4146$81.80$2.07
Jun 20242122151,4788926$79.77$2.54
May 20242472481,7891,10917$80.02$2.12
Apr 20243163141,50991034$85.35$1.60
Mar 20244414437964999$81.28$1.49
Feb 20244904911,67064652$77.25$1.72
Jan 20244704651,84173781$74.15$3.18
Dec 20231721761,23829533$71.90$2.52
Nov 20234995021,21337635$77.69$2.71
Oct 20236996951,28852927$85.64$2.98
Sep 20234574552,2161,41519$89.43$2.64
Aug 2023258262530020$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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Nearby

This lease belongs to

OperatorMarathon Oil Ef LLCFieldEagleville (Eagle Ford-2)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

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Eagleville (Eagle Ford-2) field

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