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Texas oil lease

Producing

CHALLENGER AC UNIT A

Challenger Ac Unit A is an oil lease in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Sugarkane (Austin Chalk) field.

2 wells

34,362bbl oil, last 12 months−22% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Sugarkane (Austin Chalk)
RRC lease
02-12193

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Gas, last 12 months
125,257 mcf
Oil in Jul 2026
2,219 bbl

Production by month

Oil output fell 22% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 22% over the last 12 monthsMonthly oil production and gas for CHALLENGER AC UNIT A, Aug 2023 to Jul 2026. Oil output fell 22% over the last 12 months. 34,362 bbl in the 12 months through Jul 2026, against 43,960 bbl in the 12 months before.Last 12 months: 34,362 bblbbl per monthmcf per month002,0005,0004,00010k6,00015k8,00020kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 22% over the last 12 monthsMonthly oil production and gas for CHALLENGER AC UNIT A, Aug 2023 to Jul 2026. Oil output fell 22% over the last 12 months. 34,362 bbl in the 12 months through Jul 2026, against 43,960 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

76% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
76% of the gas went to a processing plant in the last 12 monthsShare of CHALLENGER AC UNIT A gas by disposition code each month, Aug 2023 to Jul 2026. 76% 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
76% of the gas went to a processing plant in the last 12 monthsShare of CHALLENGER AC UNIT A gas by disposition code each month, Aug 2023 to Jul 2026. 76% 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)

    76% · 95,538 mcf

  • Lease fuel (1)

    23% · 28,386 mcf

  • Flared (4)

    1.1% · 1,333 mcf

1.1% of the gas flared in the last 12 months. No month above 3%.

2 wells on this lease

Wells on CHALLENGER AC UNIT A
API numberWell no.Status
42-255-371582HActive
42-255-371594HActive

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 gasBuys100Jun 22, 2021–
Marathon Oil Ef LLCCasinghead gasGathers100Jun 22, 2021–
Enterprise Crude Oil LLCOilGathers1Jun 22, 2021Jul 1, 2022
Gulfmark Energy, Inc.OilGathers1Jun 22, 2021Jul 1, 2022
Harvest Midstream CompanyOilGathers97Jun 22, 2021Jul 1, 2022
Trafigura Trading LLCOilGathers1Jun 22, 2021Jul 1, 2022

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

Who buys my oilOil price check

498.74 acres on the newest permit

Check your decimal on this lease
Permits for Challenger Ac Unit A
API numberWell no.Acreson the permit
42-255-371582H498.74
42-255-371594H498.74

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 CHALLENGER AC UNIT A
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20262,2192,2129,0836,74595$80.46$2.89
Jun 20262,3222,3369,8317,30181$84.81$3.15
May 20262,5562,56110,8048,089175$102.13$2.94
Apr 20262,6292,6369,6417,418133$100.32$2.77
Mar 20263,3953,38512,1289,20590$91.38$3.04
Feb 20262,3232,3258,4566,26864$64.51$3.62
Jan 20263,0993,10810,9568,33393$60.04$7.72
Dec 20252,8762,87611,2658,80073$57.97$4.26
Nov 20253,0673,04610,9558,71365$60.06$3.79
Oct 20253,2623,26311,8389,45686$60.89$3.19
Sep 20252,8192,83810,1387,975209$63.96$2.97
Aug 20253,7953,76810,1627,235169$64.86$2.91
Jul 20253,1373,1625,5083,765100$68.39$3.20
Jun 20254,2444,23210,9638,73262$68.17$3.02
May 20253,5773,56711,2019,09455$62.17$3.12
Apr 20253,3043,31211,2269,13289$63.54$3.42
Mar 20253,7133,70212,1209,91862$68.24$4.12
Feb 20252,9202,91510,2568,112180$71.53$4.19
Jan 20253,5523,55212,88110,346156$75.74$4.13
Dec 20243,9653,96513,80311,24134$70.12$3.01
Nov 20243,9593,97511,5999,19161$69.95$2.12
Oct 20244,1204,09312,66010,080113$71.99$2.20
Sep 20243,6363,64511,9429,76672$70.24$2.28
Aug 20243,8333,82312,56310,30596$76.68$1.99
Jul 20242,9372,93012,39710,03457$81.80$2.07
Jun 20242,9993,00112,83910,155216$79.77$2.54
May 20242,6972,74214,68511,383286$80.02$2.12
Apr 20243,8833,89014,14311,400119$85.35$1.60
Mar 20244,1564,14716,37113,618179$81.28$1.49
Feb 20244,2244,23415,52813,62070$77.25$1.72
Jan 20244,5414,52318,60215,94756$74.15$3.18
Dec 20234,8344,84719,41616,30293$71.90$2.52
Nov 20235,3035,28419,25216,378109$77.69$2.71
Oct 20235,6165,64219,04816,651125$85.64$2.98
Sep 20235,5055,49718,05415,640118$89.43$2.64
Aug 20235,7915,80219,67416,810128$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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This lease belongs to

OperatorMarathon Oil Ef LLCFieldSugarkane (Austin Chalk)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

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Sugarkane (Austin Chalk) field

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