Skip to content
Royalty Clerk

Texas oil lease

Producing

KARNES CITY NW UNIT

Karnes City NW Unit is an oil lease in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-2) field.

6 wells

39,700bbl oil, last 12 months−33% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-11069

Is your check right?

Check my statement

Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Gas, last 12 months
54,862 mcf
Oil in Jul 2026
976 bbl

Production by month

Oil output fell 33% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 33% over the last 12 monthsMonthly oil production and gas for KARNES CITY NW UNIT, Aug 2023 to Jul 2026. Oil output fell 33% over the last 12 months. 39,700 bbl in the 12 months through Jul 2026, against 59,450 bbl in the 12 months before.Last 12 months: 39,700 bblbbl per monthmcf per month002,0005,0004,00010k6,00015k8,00020kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 33% over the last 12 monthsMonthly oil production and gas for KARNES CITY NW UNIT, Aug 2023 to Jul 2026. Oil output fell 33% over the last 12 months. 39,700 bbl in the 12 months through Jul 2026, against 59,450 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002,0005,0004,00010k6,00015k8,00020kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Nov 2023 the lease's gas goes to a processing plant instead of lease fuel

Flaring peaked at 13.7% of the gas in Jan 2024.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
Since Nov 2023 the lease's gas goes to a processing plant instead of lease fuelShare of KARNES CITY NW UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Nov 2023 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 13.7% of the gas in Jan 2024.Share of the lease’s gas by disposition code, per month0%50%100%Nov 2023: fuel to plantFlared 13.7%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Nov 2023 the lease's gas goes to a processing plant instead of lease fuelShare of KARNES CITY NW UNIT gas by disposition code each month, Aug 2023 to Jul 2026. Since Nov 2023 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 13.7% of the gas in Jan 2024.Share of gas by disposition code0%50%100%Nov 23: fuel to plantFlared 13.7%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    80% · 44,158 mcf

  • Lease fuel (1)

    18% · 10,135 mcf

  • Flared (4)

    1.0% · 569 mcf

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

6 wells on this lease

Wells on KARNES CITY NW UNIT
API numberWell no.Status
42-255-341061HRActive
42-255-35225501HActive
42-255-352262HActive
42-255-35227502HActive
42-255-352283HActive
42-255-35229503HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Marathon Oil Ef LLCOilGathers100Jan 1, 2025–
Marathon Oil Ef LLCCasinghead gasBuys100Feb 7, 2015–
Marathon Oil Ef LLCCasinghead gasGathers100Feb 7, 2015–
Enterprise Crude Oil LLCOilGathers20Jul 1, 2022Jan 1, 2025
Genesis Crude Oil, L.p.OilGathers20Jul 1, 2022Jan 1, 2025
Ngl Crude Logistics, LLCOilGathers20Jul 1, 2022Jan 1, 2025
Reynolds Energy Transport LLCOilGathers10Jul 1, 2022Jan 1, 2025
Shell Trading (Us) CompanyOilGathers20Jul 1, 2022Jan 1, 2025
Statewide Crude Inc.OilGathers10Jul 1, 2022Jan 1, 2025

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

Who buys my oilOil price check

351.95 acres on the newest permit

  • 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 Karnes City NW Unit
API numberWell no.Acreson the permit
42-255-35225501H351.95
42-255-352262H351.95
42-255-35227502H351.95
42-255-352283H351.95
42-255-35229503H351.95
42-255-341061HR351.95

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 KARNES CITY NW UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20269761,0041,4571,1765$80.46$2.89
Jun 20263,4043,4025,0424,09228$84.81$3.15
May 20263,4493,4736,1134,889115$102.13$2.94
Apr 20263,4723,4435,6664,426131$100.32$2.77
Mar 20262,8812,8714,0203,16353$91.38$3.04
Feb 20262,6682,6753,6342,91343$64.51$3.62
Jan 20263,4063,4394,0173,21344$60.04$7.72
Dec 20255,7405,70010,1578,16186$57.97$4.26
Nov 20253,9683,9614,5013,68615$60.06$3.79
Oct 20253,5533,5653,9253,27123$60.89$3.19
Sep 20253,1703,1733,7723,11611$63.96$2.97
Aug 20253,0133,0222,5582,05215$64.86$2.91
Jul 20254,8614,8497,7886,14139$68.39$3.20
Jun 20254,8254,8307,9456,37526$68.17$3.02
May 20256,2886,27710,5898,56022$62.17$3.12
Apr 20255,1495,1587,0515,71924$63.54$3.42
Mar 20255,8885,8878,0366,58719$68.24$4.12
Feb 20253,5703,5514,8344,01017$71.53$4.19
Jan 20252,5962,6084,7013,86722$75.74$4.13
Dec 20244,4704,4647,6416,25318$70.12$3.01
Nov 20244,9034,9078,5467,13022$69.95$2.12
Oct 20245,7355,7449,4727,91931$71.99$2.20
Sep 20245,7385,73912,11410,22120$70.24$2.28
Aug 20245,4275,45914,70312,24748$76.68$1.99
Jul 20246,5916,58713,4089,749585$81.80$2.07
Jun 20245,8895,8858,0995,985571$79.77$2.54
May 20244,7804,7667,2365,725451$80.02$2.12
Apr 20244,3314,3336,4424,980515$85.35$1.60
Mar 20243,9063,8927,5435,941339$81.28$1.49
Feb 20242,3152,3426,3433,361752$77.25$1.72
Jan 20244,5364,53611,2066,7631,539$74.15$3.18
Dec 20234,6394,6427,5524,062583$71.90$2.52
Nov 20235,9095,8998,7724,5071,043$77.69$2.71
Oct 20235,6105,6127,0262,887697$85.64$2.98
Sep 20235,3035,3117,5253,889790$89.43$2.64
Aug 20235,6385,6238,5755,033628$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.

How to check your stub against this lease Checks stopped on this lease? See the likely reasons

Do your checks match this lease?

Check my statement

Nearby

This lease belongs to

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

Marathon Oil Ef LLC in Karnes County

All Marathon Oil Ef LLC leases →

Eagleville (Eagle Ford-2) field

All leases in this field →

Leases within 10 km

Drilling permits within 10 km