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Royalty Clerk

Texas gas well

Producing

SJOBERG 01

Sjoberg 01 is a gas well in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Eagle Ford) field.

1 well

26,097mcf gas, last 12 months−26% vs prior year
RRC lease
02-259885

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Oil, last 12 months
179 bbl
Gas in Jul 2026
0 mcf

Production by month

Gas output fell 26% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 26% over the last 12 monthsMonthly gas production and oil for SJOBERG 01, Aug 2023 to Jul 2026. Gas output fell 26% over the last 12 months. 26,097 mcf in the 12 months through Jul 2026, against 35,273 mcf in the 12 months before.Last 12 months: 26,097 mcfmcf per monthbbl per month001,000102,000203,000304,000405,00050Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 26% over the last 12 monthsMonthly gas production and oil for SJOBERG 01, Aug 2023 to Jul 2026. Gas output fell 26% over the last 12 months. 26,097 mcf in the 12 months through Jul 2026, against 35,273 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month001,000102,000203,000304,000405,00050Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

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

All of the gas went to a processing plant in the last 12 monthsShare of SJOBERG 01 gas by disposition code each month, Aug 2023 to Jul 2026. All 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
All of the gas went to a processing plant in the last 12 monthsShare of SJOBERG 01 gas by disposition code each month, Aug 2023 to Jul 2026. All 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.

Who has run this lease

The operator changed once, most recently in Mar 2023

Operators of this lease over timeEnsign Operating LLC, Jan 2020 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262020202120222023202420252026Changed Mar 2023Ensign Operating LLCJan 2020 to Feb 2023Marathon Oil Ef LLCMar 2023 to now
Operators of this lease over timeEnsign Operating LLC, Jan 2020 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262020202120222023202420252026Changed Mar 2023Ensign Operating LLCJan 2020 to Feb 2023Marathon Oil Ef LLCMar 2023 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on SJOBERG 01
API numberWell no.Status
42-255-3170101HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCCondensateGathers50Mar 1, 2023–
Enterprise Crude Pipeline LLCCondensateGathers50Mar 1, 2023–
Marathon Oil Ef LLCGas-well gasBuys100Mar 1, 2023–
Marathon Oil Ef LLCGas-well gasGathers100Mar 1, 2023–
Gulfmark Energy, Inc.CondensateGathers100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCGas-well gasGathers100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCGas-well gasBuys100Oct 2, 2019Mar 1, 2023
Ensign Operating LLCCondensateGathers50Oct 1, 2019Oct 2, 2019
Enterprise Crude Oil LLCCondensateGathers25Oct 1, 2019Oct 2, 2019
Enterprise Crude Pipeline LLCCondensateGathers25Oct 1, 2019Oct 2, 2019

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

212.85 acres on the newest permit

Permits for Sjoberg 01
API numberWell no.Acreson the permit
42-255-3170101H212.85

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 SJOBERG 01
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil00000$80.46$2.89
Jun 2026Marathon Oil335965960$84.81$3.15
May 2026Marathon Oil771,5481,5480$102.13$2.94
Apr 2026Marathon Oil14141,4331,4330$100.32$2.77
Mar 2026Marathon Oil442,2042,2040$91.38$3.04
Feb 2026Marathon Oil31312,8042,8040$64.51$3.62
Jan 2026Marathon Oil13132,6772,6770$60.04$7.72
Dec 2025Marathon Oil31313,1293,1290$57.97$4.26
Nov 2025Marathon Oil25253,0753,0750$60.06$3.79
Oct 2025Marathon Oil17173,5083,5080$60.89$3.19
Sep 2025Marathon Oil14142,2772,2770$63.96$2.97
Aug 2025Marathon Oil20202,8462,8460$64.86$2.91
Jul 2025Marathon Oil002182180$68.39$3.20
Jun 2025Marathon Oil224,1944,1940$68.17$3.02
May 2025Marathon Oil444,8124,8120$62.17$3.12
Apr 2025Marathon Oil001551550$63.54$3.42
Mar 2025Marathon Oil771,6881,6880$68.24$4.12
Feb 2025Marathon Oil22223,9913,9910$71.53$4.19
Jan 2025Marathon Oil22223,1143,1140$75.74$4.13
Dec 2024Marathon Oil32323,4893,4890$70.12$3.01
Nov 2024Marathon Oil11113,4003,4000$69.95$2.12
Oct 2024Marathon Oil993,5633,5630$71.99$2.20
Sep 2024Marathon Oil13133,3103,3100$70.24$2.28
Aug 2024Marathon Oil19193,3393,3390$76.68$1.99
Jul 2024Marathon Oil20203,3793,3790$81.80$2.07
Jun 2024Marathon Oil993,2373,2370$79.77$2.54
May 2024Marathon Oil17173,3283,3280$80.02$2.12
Apr 2024Marathon Oil003,1553,1550$85.35$1.60
Mar 2024Marathon Oil20203,1603,1600$81.28$1.49
Feb 2024Marathon Oil22223,0083,0080$77.25$1.72
Jan 2024Marathon Oil34343,7613,7610$74.15$3.18
Dec 2023Marathon Oil884,1794,1790$71.90$2.52
Nov 2023Marathon Oil19192,2212,2210$77.69$2.71
Oct 2023Marathon Oil16163,2263,2260$85.64$2.98
Sep 2023Marathon Oil992,5962,5960$89.43$2.64
Aug 2023Marathon Oil10103,8383,8380$81.39$2.58

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

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Nearby

Marathon Oil Ef LLC in Karnes County

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Sugarkane (Eagle Ford) field

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