Skip to content
Royalty Clerk

Texas oil lease

Producing

KELLNER JONAS-MUTZ UNIT SA4

Kellner Jonas-Mutz Unit Sa4 is an oil lease in Atascosa County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-1) field.

1 well

13,469bbl oil, last 12 months−61% vs prior year
Operator
Marathon Oil Ef LLC
County
Atascosa County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-20503

Is your check right?

Check my statement

Where it sits

This county

Atascosa CountyAtascosaWilsonMedinaKarnesFrioBexarAtascosa County
Atascosa County
Gas, last 12 months
41,181 mcf
Oil in Jul 2026
69 bbl

Production by month

Oil output fell 61% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 61% over the last 12 monthsMonthly oil production and gas for KELLNER JONAS-MUTZ UNIT SA4, Aug 2023 to Jul 2026. Oil output fell 61% over the last 12 months. 13,469 bbl in the 12 months through Jul 2026, against 34,108 bbl in the 12 months before.Last 12 months: 13,469 bblbbl per monthmcf per month002,0005,0004,00010k6,00015k8,00020kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 61% over the last 12 monthsMonthly oil production and gas for KELLNER JONAS-MUTZ UNIT SA4, Aug 2023 to Jul 2026. Oil output fell 61% over the last 12 months. 13,469 bbl in the 12 months through Jul 2026, against 34,108 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

87% of the gas went to a processing plant in the last 12 months

Flaring peaked at 4.1% of the gas in Aug 2025.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
87% of the gas went to a processing plant in the last 12 monthsShare of KELLNER JONAS-MUTZ UNIT SA4 gas by disposition code each month, Aug 2023 to Jul 2026. 87% of the gas went to a processing plant in the last 12 months. Flaring peaked at 4.1% of the gas in Aug 2025.Share of the lease’s gas by disposition code, per month0%50%100%Flared 4.1%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
87% of the gas went to a processing plant in the last 12 monthsShare of KELLNER JONAS-MUTZ UNIT SA4 gas by disposition code each month, Aug 2023 to Jul 2026. 87% of the gas went to a processing plant in the last 12 months. Flaring peaked at 4.1% of the gas in Aug 2025.Share of gas by disposition code0%50%100%Flared 4.1%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    87% · 35,893 mcf

  • Lease fuel (1)

    12% · 4,841 mcf

  • Flared (4)

    1.1% · 447 mcf

1.1% of the gas flared in the last 12 months. 6 months above 3%.

1 well on this lease

Wells on KELLNER JONAS-MUTZ UNIT SA4
API numberWell no.Status
42-013-358094HActive

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 4, 2021–
Marathon Oil Ef LLCCasinghead gasGathers100Oct 4, 2021–
Enterprise Crude Oil LLCOilGathers1Oct 4, 2021Jul 1, 2022
Gulfmark Energy, Inc.OilGathers1Oct 4, 2021Jul 1, 2022
Harvest Midstream CompanyOilGathers97Oct 4, 2021Jul 1, 2022
Trafigura Trading LLCOilGathers1Oct 4, 2021Jul 1, 2022

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

Who buys my oilOil price check

732.24 acres on the newest permit

An allocation well is on this lease

Permits for Kellner Jonas-Mutz Unit Sa4
API numberWell no.Acreson the permit
42-013-358094H732.24

SourceRailroad Commission drilling permits, Sep 26, 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 KELLNER JONAS-MUTZ UNIT SA4
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202669691901602$80.46$2.89
Jun 202649623012541$84.81$3.15
May 20261,1161,1242,7082,22723$102.13$2.94
Apr 20261,4781,4784,8524,34319$100.32$2.77
Mar 20261,8741,8634,3273,92318$91.38$3.04
Feb 20266096119418455$64.51$3.62
Jan 20261,7441,7584,8984,47418$60.04$7.72
Dec 20251,6641,6555,2604,42842$57.97$4.26
Nov 20251,5431,5435,0664,28867$60.06$3.79
Oct 20251,4511,4524,8734,37428$60.89$3.19
Sep 20251,4191,4074,0853,55374$63.96$2.97
Aug 20254534663,6803,024150$64.86$2.91
Jul 20252,1682,1635,3294,415162$68.39$3.20
Jun 20251,8371,8364,4683,830127$68.17$3.02
May 20252,3872,3865,7474,966106$62.17$3.12
Apr 20253,0293,0305,4884,709112$63.54$3.42
Mar 20253,2553,2555,3654,611128$68.24$4.12
Feb 20252,3312,3585,7374,80558$71.53$4.19
Jan 20252,9192,9277,9106,563155$75.74$4.13
Dec 20243,5743,5608,5937,32557$70.12$3.01
Nov 20243,1723,1658,8737,72895$69.95$2.12
Oct 20242,9652,9689,3858,124166$71.99$2.20
Sep 20243,4823,4839,0517,901193$70.24$2.28
Aug 20242,9893,0027,2956,36392$76.68$1.99
Jul 20244,2144,1938,2226,970321$81.80$2.07
Jun 20243,1053,1026,9005,839243$79.77$2.54
May 20244,0024,0087,2656,199254$80.02$2.12
Apr 20244,0934,0915,4804,743172$85.35$1.60
Mar 20244,6274,6487,4896,622133$81.28$1.49
Feb 20243,8564,0237,2956,525139$77.25$1.72
Jan 20245,1665,10411,0059,929200$74.15$3.18
Dec 20236,1536,11212,32211,231137$71.90$2.52
Nov 20235,1525,13411,89010,989102$77.69$2.71
Oct 20235,4645,52613,08611,98373$85.64$2.98
Sep 20235,5815,51912,67211,583107$89.43$2.64
Aug 20234,7014,71813,63812,641159$81.39$2.58

Flared above 3%

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Sep 28, 2026.

How to check your stub against this lease

Do your checks match this lease?

Check my statement

Nearby

This lease belongs to

OperatorMarathon Oil Ef LLCFieldEagleville (Eagle Ford-1)CountyAtascosa County

Marathon Oil Ef LLC in Atascosa County

All Marathon Oil Ef LLC leases →

Eagleville (Eagle Ford-1) field

All leases in this field →

Leases within 10 km

Drilling permits within 10 km