Skip to content
Royalty Clerk

Texas gas well

Producing

KOWALIK 228-1R

Kowalik 228-1R is a gas well in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Eagle Ford) field.

Gas well dossier

14,422mcf gas, last 12 months+32% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Sugarkane (Eagle Ford)
RRC lease
02-288734

Is your check right?

Check my statement

Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
3,102 bbl
Gas in Jul 2026
1,674 mcf

Production by month

Gas output rose 32% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output rose 32% over the last 12 monthsMonthly gas production and oil for KOWALIK 228-1R, Aug 2023 to Jul 2026. Gas output rose 32% over the last 12 months. 14,422 mcf in the 12 months through Jul 2026, against 10,922 mcf in the 12 months before.Last 12 months: 14,422 mcfmcf per monthbbl per month002,0002504,0005006,0007508,0001,00010k1,250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output rose 32% over the last 12 monthsMonthly gas production and oil for KOWALIK 228-1R, Aug 2023 to Jul 2026. Gas output rose 32% over the last 12 months. 14,422 mcf in the 12 months through Jul 2026, against 10,922 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002,0002504,0005006,0007508,0001,00010k1,250Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

86% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
86% of the gas went to a processing plant in the last 12 monthsShare of KOWALIK 228-1R gas by disposition code each month, Aug 2023 to Jul 2026. 86% 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 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
86% of the gas went to a processing plant in the last 12 monthsShare of KOWALIK 228-1R gas by disposition code each month, Aug 2023 to Jul 2026. 86% of the gas went to a processing plant in the last 12 months.Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    86% · 14,001 mcf

  • Lease fuel (1)

    13% · 2,147 mcf

  • Flared (4)

    0.5% · 77 mcf

0.5% of the gas flared in the last 12 months. No month above 3%.

Wells on this lease

No wells are linked to this lease in our data

Production is still reported at lease level.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCCondensateGathers50Jul 1, 2022–
Reynolds Energy Transport LLCCondensateGathers25Jul 1, 2022–
Trafigura Trading LLCCondensateGathers25Jul 1, 2022–
Marathon Oil Ef LLCGas-well gasBuys100Sep 11, 2014–
Marathon Oil Ef LLCGas-well gasGathers100Sep 11, 2014–
Enterprise Crude Oil LLCCondensateGathers1Sep 11, 2014Jul 1, 2022
Gulfmark Energy, Inc.CondensateGathers1Sep 11, 2014Jul 1, 2022
Marathon Oil Ef LLCCondensateGathers97Sep 11, 2014Jul 1, 2022
Trafigura Trading LLCCondensateGathers1Sep 11, 2014Jul 1, 2022

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

Who buys my oilOil price check

640 acres on the newest permit

Check your decimal on this lease
Permits for Kowalik 228-1R
API numberWell no.Acreson the permit
42-255-338765H640

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 KOWALIK 228-1R
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20263103101,6741,4289$80.46$2.89
Jun 20262402451,9941,6928$84.81$3.15
May 20263973921,8371,59110$102.13$2.94
Apr 20263543541,4131,2424$100.32$2.77
Mar 20263012941,4491,26010$91.38$3.04
Feb 202600000$64.51$3.62
Jan 202600000$60.04$7.72
Dec 20251215110$57.97$4.26
Nov 20251061122732421$60.06$3.79
Oct 20255835781,8281,5935$60.89$3.19
Sep 20253163261,4621,2705$63.96$2.97
Aug 20254834782,4912,15016$64.86$2.91
Jul 20253483431,2641,0658$68.39$3.20
Jun 20252332415394671$68.17$3.02
May 20258028092,1051,8063$62.17$3.12
Apr 20251,1691,1514,0643,5387$63.54$3.42
Mar 202571735324541$68.24$4.12
Feb 20251461435054401$71.53$4.19
Jan 202500000$75.74$4.13
Dec 202400000$70.12$3.01
Nov 202400000$69.95$2.12
Oct 202402000$71.99$2.20
Sep 20241811825624832$70.24$2.28
Aug 20243143121,3511,1732$76.68$1.99
Jul 202496984443791$81.80$2.07
Jun 20242512481,1289493$79.77$2.54
May 202400000$80.02$2.12
Apr 2024013000$85.35$1.60
Mar 20245935885,0504,33825$81.28$1.49
Feb 20242952926,0035,46216$77.25$1.72
Jan 20242392352,8392,5929$74.15$3.18
Dec 202335416175602$71.90$2.52
Nov 20233323332,3491,8199$77.69$2.71
Oct 20234033952,1411,68713$85.64$2.98
Sep 202300000$89.43$2.64
Aug 202300000$81.39$2.58

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 LLCFieldSugarkane (Eagle Ford)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

All Marathon Oil Ef LLC leases →

Sugarkane (Eagle Ford) field

All leases in this field →

New drilling permits in Karnes County

Newest in the county: this lease has no coordinates.