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Texas oil lease

Producing

CHAPMAN-HUMMEL UNIT

Chapman-Hummel Unit is an oil lease in Karnes County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-2) field.

4 wells

93,207bbl oil, last 12 months−62% vs prior year
Operator
Marathon Oil Ef LLC
County
Karnes County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-10297

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Where it sits

This county

Karnes CountyKarnesAtascosaGoliadWilsonGonzalesDe WittBexarKarnes County
Karnes County
Gas, last 12 months
138,556 mcf
Oil in Jul 2026
10,455 bbl

Production by month

Oil output fell 62% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 62% over the last 12 monthsMonthly oil production and gas for CHAPMAN-HUMMEL UNIT, Aug 2023 to Jul 2026. Oil output fell 62% over the last 12 months. 93,207 bbl in the 12 months through Jul 2026, against 243,955 bbl in the 12 months before.Last 12 months: 93,207 bblbbl per monthmcf per month0010k20k20k40k30k60k40k80k50k100kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 62% over the last 12 monthsMonthly oil production and gas for CHAPMAN-HUMMEL UNIT, Aug 2023 to Jul 2026. Oil output fell 62% over the last 12 months. 93,207 bbl in the 12 months through Jul 2026, against 243,955 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0010k20k20k40k30k60k40k80k50k100kJan 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 CHAPMAN-HUMMEL UNIT 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 CHAPMAN-HUMMEL UNIT 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% · 119,972 mcf

  • Lease fuel (1)

    12% · 17,040 mcf

  • Flared (4)

    1.1% · 1,544 mcf

1.1% of the gas flared in the last 12 months. 5 months above 3%.

4 wells on this lease

Wells on CHAPMAN-HUMMEL UNIT
API numberWell no.Status
42-255-327331HActive
42-255-380312HActive
42-255-380323HActive
42-255-380334HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Statewide Crude Inc.OilGathers50Jul 1, 2022–
Plains Pipeline L.p.OilGathers25Jul 1, 2022–
Reynolds Energy Transport LLCOilGathers25Jul 1, 2022–
Marathon Oil Ef LLCCasinghead gasBuys100Oct 30, 2012–
Marathon Oil Ef LLCCasinghead gasGathers100Oct 30, 2012–
Gulfmark Energy, Inc.OilGathers10Oct 30, 2012Jul 1, 2022
Statewide Crude Inc.OilGathers90Oct 30, 2012Jul 1, 2022

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

Who buys my oilOil price check

272.49 acres on the newest permit

  • Good to know

    The wells on this lease state different acreage

    The permits state between 268.34 and 272.49 acres. Use the acres from your own division order for the well you are paid on.

Check your decimal on this lease
Permits for Chapman-Hummel Unit
API numberWell no.Acreson the permit
42-255-380312H272.49
42-255-380323H272.49
42-255-380334H272.49
42-255-327331H268.34

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 CHAPMAN-HUMMEL UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202610,45510,38310,8559,15691$80.46$2.89
Jun 20269,4729,43811,7829,93843$84.81$3.15
May 20266,0216,0639,0347,42877$102.13$2.94
Apr 20267,9487,93611,90110,65446$100.32$2.77
Mar 20269,0029,02914,21112,88658$91.38$3.04
Feb 20267,2357,1507,2866,54540$64.51$3.62
Jan 20266,3726,4178,6997,94633$60.04$7.72
Dec 20255,6095,60611,7759,91493$57.97$4.26
Nov 20257,4817,49512,19110,319162$60.06$3.79
Oct 20258,2928,28414,06012,61882$60.89$3.19
Sep 20257,1277,16011,98810,428216$63.96$2.97
Aug 20258,1938,13114,77412,140603$64.86$2.91
Jul 20257,1507,15315,72513,028477$68.39$3.20
Jun 20258,4978,48817,18014,726490$68.17$3.02
May 20259,8659,85318,57016,048342$62.17$3.12
Apr 202511,32211,33121,36618,333435$63.54$3.42
Mar 202512,70912,73521,47218,453512$68.24$4.12
Feb 202513,67913,84222,89319,176230$71.53$4.19
Jan 202517,40017,42629,66724,617580$75.74$4.13
Dec 202419,96619,96035,75930,481238$70.12$3.01
Nov 202423,79823,81141,96436,547450$69.95$2.12
Oct 202429,77329,85749,85143,154883$71.99$2.20
Sep 202440,94841,11162,49554,5531,334$70.24$2.28
Aug 202448,84848,80760,43952,716765$76.68$1.99
Jul 202445,65345,17046,25539,2131,803$81.80$2.07
Jun 202411411511100$79.77$2.54
May 202437737740134214$80.02$2.12
Apr 202425825833929311$85.35$1.60
Mar 20243183194123657$81.28$1.49
Feb 20242682773213004$77.25$1.72
Jan 20242972942982803$74.15$3.18
Dec 20233603574804543$71.90$2.52
Nov 20232952943753552$77.69$2.71
Oct 20233003044414142$85.64$2.98
Sep 20233253234344063$89.43$2.64
Aug 20233703714944645$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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Nearby

This lease belongs to

OperatorMarathon Oil Ef LLCFieldEagleville (Eagle Ford-2)CountyKarnes County

Marathon Oil Ef LLC in Karnes County

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Eagleville (Eagle Ford-2) field

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