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Texas oil lease

Producing

MAY GIRLS-CHAPMAN UNIT

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

4 wells

43bbl oil, last 12 months−99% vs prior year
Operator
Marathon Oil Ef LLC
County
Atascosa County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-10641

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Where it sits

This county

Atascosa CountyAtascosaWilsonMedinaKarnesFrioBexarAtascosa County
Atascosa County
Gas, last 12 months
15 mcf
Oil in Jul 2026
7 bbl

Production by month

Oil output fell 99% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 99% over the last 12 monthsMonthly oil production and gas for MAY GIRLS-CHAPMAN UNIT, Aug 2023 to Jul 2026. Oil output fell 99% over the last 12 months. 43 bbl in the 12 months through Jul 2026, against 4,406 bbl in the 12 months before.Last 12 months: 43 bblbbl per monthmcf per month002505005001,0007501,5001,0002,0001,2502,500Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 99% over the last 12 monthsMonthly oil production and gas for MAY GIRLS-CHAPMAN UNIT, Aug 2023 to Jul 2026. Oil output fell 99% over the last 12 months. 43 bbl in the 12 months through Jul 2026, against 4,406 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002505005001,0007501,5001,0002,0001,2502,500Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

58% of the gas went to a processing plant in the last 12 months

Flaring peaked at 8.6% of the gas in Mar 2025.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
58% of the gas went to a processing plant in the last 12 monthsShare of MAY GIRLS-CHAPMAN UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 58% of the gas went to a processing plant in the last 12 months. Flaring peaked at 8.6% of the gas in Mar 2025.Share of the lease’s gas by disposition code, per month0%50%100%Flared 8.6%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
58% of the gas went to a processing plant in the last 12 monthsShare of MAY GIRLS-CHAPMAN UNIT gas by disposition code each month, Aug 2023 to Jul 2026. 58% of the gas went to a processing plant in the last 12 months. Flaring peaked at 8.6% of the gas in Mar 2025.Share of gas by disposition code0%50%100%Flared 8.6%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    58% · 2,692 mcf

  • Lease fuel (1)

    37% · 1,692 mcf

  • Flared (4)

    4.8% · 221 mcf

4.8% of the gas flared in the last 12 months. 12 months above 3%.

4 wells on this lease

Wells on MAY GIRLS-CHAPMAN UNIT
API numberWell no.Status
42-013-346371HShut-in
42-013-346422HShut-in
42-013-346433HShut-in
42-013-346654HActive

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 gasBuys100May 26, 2013–
Marathon Oil Ef LLCCasinghead gasGathers100May 26, 2013–
Gulfmark Energy, Inc.OilGathers10May 26, 2013Jul 1, 2022
Statewide Crude Inc.OilGathers90May 26, 2013Jul 1, 2022

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

Who buys my oilOil price check

275.89 acres on the newest permit

  • Good to know

    A pooling certificate (P-12) was filed

    Your tract may share its production with neighbors in a pooled unit. The unit acres the operator uses to divide production can differ from the acreage on one permit.

Check your decimal on this lease
Permits for May Girls-Chapman Unit
API numberWell no.Acreson the permit
42-013-346654H275.89
42-013-346422H275.89
42-013-346433H275.89
42-013-346371H275.89

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 MAY GIRLS-CHAPMAN UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202677430$80.46$2.89
Jun 2026991070$84.81$3.15
May 202600000$102.13$2.94
Apr 202600000$100.32$2.77
Mar 202600000$91.38$3.04
Feb 202600000$64.51$3.62
Jan 202600000$60.04$7.72
Dec 20251313110$57.97$4.26
Nov 202500000$60.06$3.79
Oct 20251414000$60.89$3.19
Sep 202500000$63.96$2.97
Aug 202501000$64.86$2.91
Jul 2025363513100$68.39$3.20
Jun 202503000$68.17$3.02
May 2025137149172925$62.17$3.12
Apr 202555555062538334$63.54$3.42
Mar 202534133855629648$68.24$4.12
Feb 202537437363834933$71.53$4.19
Jan 202539640249927627$75.74$4.13
Dec 202473172687452722$70.12$3.01
Nov 202473873771443423$69.95$2.12
Oct 202475474949931429$71.99$2.20
Sep 20241381401541085$70.24$2.28
Aug 202420620627916516$76.68$1.99
Jul 202425826145831723$81.80$2.07
Jun 202449649143731118$79.77$2.54
May 2024931162111368$80.02$2.12
Apr 20241,0371,0261,25081336$85.35$1.60
Mar 202450651087656127$81.28$1.49
Feb 20248087978798284$77.25$1.72
Jan 20244804956135755$74.15$3.18
Dec 20239669681,1631,0935$71.90$2.52
Nov 20231,0921,0861,4151,32610$77.69$2.71
Oct 20231,1001,1108237624$85.64$2.98
Sep 20231,2441,2441,3141,22711$89.43$2.64
Aug 20231,1361,1251,00792912$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)CountyAtascosa County

Marathon Oil Ef LLC in Atascosa County

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