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Texas oil lease

Producing

MAY-CHAPMAN

May-Chapman is an oil lease in Atascosa County, Texas, operated by Marathon Oil Ef LLC in the Eagleville (Eagle Ford-1) field.

9 wells

30,387bbl oil, last 12 months−25% vs prior year
Operator
Marathon Oil Ef LLC
County
Atascosa County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-16009

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Where it sits

This county

Atascosa CountyAtascosaWilsonMedinaKarnesFrioBexarAtascosa County
Atascosa County
Gas, last 12 months
44,734 mcf
Oil in Jul 2026
1,921 bbl

Production by month

Oil output fell 25% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 25% over the last 12 monthsMonthly oil production and gas for MAY-CHAPMAN, Aug 2023 to Jul 2026. Oil output fell 25% over the last 12 months. 30,387 bbl in the 12 months through Jul 2026, against 40,555 bbl in the 12 months before.Last 12 months: 30,387 bblbbl per monthmcf per month002,0002,5004,0005,0006,0007,5008,00010kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 25% over the last 12 monthsMonthly oil production and gas for MAY-CHAPMAN, Aug 2023 to Jul 2026. Oil output fell 25% over the last 12 months. 30,387 bbl in the 12 months through Jul 2026, against 40,555 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002,0002,5004,0005,0006,0007,5008,00010kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Feb 2024 the lease's gas goes to a processing plant instead of lease fuel

Flaring peaked at 10.1% of the gas in Aug 2023.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
Since Feb 2024 the lease's gas goes to a processing plant instead of lease fuelShare of MAY-CHAPMAN gas by disposition code each month, Aug 2023 to Jul 2026. Since Feb 2024 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 10.1% of the gas in Aug 2023.Share of the lease’s gas by disposition code, per month0%50%100%Feb 2024: fuel to plantFlared 10.1%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Feb 2024 the lease's gas goes to a processing plant instead of lease fuelShare of MAY-CHAPMAN gas by disposition code each month, Aug 2023 to Jul 2026. Since Feb 2024 the lease's gas goes to a processing plant instead of lease fuel. Flaring peaked at 10.1% of the gas in Aug 2023.Share of gas by disposition code0%50%100%Feb 24: fuel to plantFlared 10.1%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    74% · 33,059 mcf

  • Lease fuel (1)

    24% · 10,851 mcf

  • Flared (4)

    1.8% · 824 mcf

1.8% of the gas flared in the last 12 months. 21 months above 3%.

9 wells on this lease

Wells on MAY-CHAPMAN
API numberWell no.Status
42-013-345061HActive
42-013-345262HActive
42-013-348153HActive
42-013-348164HActive
42-013-348175HActive
42-013-354426HActive
42-013-354437HActive
42-013-354448HActive
42-013-354459HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Statewide Crude Inc.OilGathers100Jun 18, 2012
Marathon Oil Ef LLCCasinghead gasBuys100Jun 18, 2012
Marathon Oil Ef LLCCasinghead gasGathers100Jun 18, 2012

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

Who buys my oilOil price check

594.03 acres on the newest permit

9 wells are listed on this lease

Permits for May-Chapman
API numberWell no.Acreson the permit
42-013-354426H594.03
42-013-354437H594.03
42-013-354448H594.03
42-013-354459H594.03
42-013-348153H594.03
42-013-348164H594.03
42-013-348175H594.03
42-013-345262H605.31
42-013-345061H605.31

SourceRailroad Commission drilling permits, Sep 26, 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 MAY-CHAPMAN
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 20261,9211,9315,7284,21173$80.46$2.89
Jun 20264,1004,1018,6386,040134$84.81$3.15
May 20263,7633,8304,4663,32188$102.13$2.94
Apr 20263,0973,0255,6234,102139$100.32$2.77
Mar 20263,5483,5206,8115,229107$91.38$3.04
Feb 202695398794171320$64.51$3.62
Jan 20262,7752,7231,9991,58933$60.04$7.72
Dec 20251,5351,54858046912$57.97$4.26
Nov 20252,1602,16991667722$60.06$3.79
Oct 20251,9711,9662,2981,63473$60.89$3.19
Sep 20252,1262,1213,6582,71071$63.96$2.97
Aug 20252,4382,4933,0762,36452$64.86$2.91
Jul 20254,6664,6046,9875,199177$68.39$3.20
Jun 20254,4294,4484,2692,944257$68.17$3.02
May 20252,3582,3963,9492,107115$62.17$3.12
Apr 20253,4173,4796,1033,736336$63.54$3.42
Mar 20255,3705,2725,6683,016490$68.24$4.12
Feb 20253,0413,0283,3821,852174$71.53$4.19
Jan 20252,9842,9963,2131,774176$75.74$4.13
Dec 20243,2323,2064,4222,666110$70.12$3.01
Nov 20242,9632,9553,2871,998105$69.95$2.12
Oct 20242,7012,7023,5232,216202$71.99$2.20
Sep 20242,2982,3184,9543,480156$70.24$2.28
Aug 20243,0963,1125,9813,545337$76.68$1.99
Jul 20244,8844,8736,7694,687343$81.80$2.07
Jun 20243,8733,8757,3405,226305$79.77$2.54
May 20243,1703,1977,3274,725283$80.02$2.12
Apr 20243,2513,2626,9034,489202$85.35$1.60
Mar 20243,3213,2774,7853,063148$81.28$1.49
Feb 20242,0642,0675,1702,532198$77.25$1.72
Jan 20243,4603,4914,0251,000375$74.15$3.18
Dec 20233,6083,6185,9271,602291$71.90$2.52
Nov 20234,0584,0336,9292,833475$77.69$2.71
Oct 20233,9193,9374,9561,547200$85.64$2.98
Sep 20233,6613,6896,3662,106579$89.43$2.64
Aug 20234,5114,5137,1962,610724$81.39$2.58

Flared above 3%

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Sep 28, 2026.

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This lease belongs to

OperatorMarathon Oil Ef LLCFieldEagleville (Eagle Ford-1)CountyAtascosa County

Marathon Oil Ef LLC in Atascosa County

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