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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

20,548mcf gas, last 12 months−30% vs prior year
RRC lease
02-294680

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
5,050 bbl
Gas in Jul 2026
2,802 mcf

Production by month

Gas output fell 30% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 30% over the last 12 monthsMonthly gas production and oil for KOWALIK 228-1R, Aug 2023 to Jul 2026. Gas output fell 30% over the last 12 months. 20,548 mcf in the 12 months through Jul 2026, against 29,451 mcf in the 12 months before.Last 12 months: 20,548 mcfmcf per monthbbl per month001,0005002,0001,0003,0001,5004,0002,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 30% over the last 12 monthsMonthly gas production and oil for KOWALIK 228-1R, Aug 2023 to Jul 2026. Gas output fell 30% over the last 12 months. 20,548 mcf in the 12 months through Jul 2026, against 29,451 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month001,0005002,0001,0003,0001,5004,0002,000Jan 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 4.9% 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 KOWALIK 228-1R 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 4.9% of the gas in Jan 2024.Share of the lease’s gas by disposition code, per month0%50%100%Mar 2024: fuel to plantFlared 4.9%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Mar 2024 the lease's gas goes to a processing plant instead of lease fuelShare of KOWALIK 228-1R 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 4.9% of the gas in Jan 2024.Share of gas by disposition code0%50%100%Mar 24: fuel to plantFlared 4.9%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    80% · 19,066 mcf

  • Lease fuel (1)

    19% · 4,453 mcf

  • Flared (4)

    0.9% · 221 mcf

0.9% of the gas flared in the last 12 months. One 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%From
Enterprise Crude Oil LLCCondensateGathers25Oct 22, 2018
Plains Pipeline L.p.CondensateGathers25Oct 22, 2018
Reynolds Energy Transport LLCCondensateGathers25Oct 22, 2018
Trafigura Trading LLCCondensateGathers25Oct 22, 2018
Marathon Oil Ef LLCGas-well gasBuys100Oct 22, 2018
Marathon Oil Ef LLCGas-well gasGathers100Oct 22, 2018

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

623.40 acres on the newest permit

Permits for Kowalik 228-1R
API numberWell no.Acreson the permit
42-255-3551112H623.40

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

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 20267827612,8022,1637$80.46$2.89
Jun 20261751959397442$84.81$3.15
May 20267517442,9032,35224$102.13$2.94
Apr 20266346183,6722,94910$100.32$2.77
Mar 2026871011,0078219$91.38$3.04
Feb 20264474382,9482,42212$64.51$3.62
Jan 202630729992674518$60.04$7.72
Dec 2025014000$57.97$4.26
Nov 20254974831,0798843$60.06$3.79
Oct 2025234760$60.89$3.19
Sep 20258798612,2541,80566$63.96$2.97
Aug 20254894872,0111,63636$64.86$2.91
Jul 20254404453,1922,53934$68.39$3.20
Jun 20256096013,8723,07119$68.17$3.02
May 20253964262,8092,2657$62.17$3.12
Apr 20251,6881,6723,2222,64610$63.54$3.42
Mar 20251,0731,0742,9862,5055$68.24$4.12
Feb 20251,0301,0272,4572,02634$71.53$4.19
Jan 20251,0611,0652,5822,17216$75.74$4.13
Dec 20241,3561,3483,0192,5695$70.12$3.01
Nov 20249179112,7272,3105$69.95$2.12
Oct 20246516402,5852,2097$71.99$2.20
Sep 202400000$70.24$2.28
Aug 202400000$76.68$1.99
Jul 202400000$81.80$2.07
Jun 202400000$79.77$2.54
May 202400000$80.02$2.12
Apr 202402000$85.35$1.60
Mar 20242652661,2841,1227$81.28$1.49
Feb 202419720852119411$77.25$1.72
Jan 202482882959521629$74.15$3.18
Dec 20238758702,5421,88031$71.90$2.52
Nov 20237407362,0111,3535$77.69$2.71
Oct 20235605651,7261,15320$85.64$2.98
Sep 20231,0961,0961,1236752$89.43$2.64
Aug 20231,1771,1743,2482,67014$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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Marathon Oil Ef LLC in Karnes County

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New drilling permits in Karnes County

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