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Royalty Clerk

Texas gas well

Producing

MAY-CHAPMAN

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

Gas well dossier

127mcf gas, last 12 months−92% vs prior year
Operator
Marathon Oil Ef LLC
County
Atascosa County
Field
Eagleville (Eagle Ford-1)
RRC lease
01-289419

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Where it sits

This county

Atascosa CountyAtascosaWilsonMedinaKarnesFrioBexarAtascosa County
Atascosa County
Oil, last 12 months
186 bbl
Gas in Jul 2026
0 mcf

Checks stopped on this lease?

  • Sales

    No sales reported for the last 2 months of state data (through Jul 2026).

SourceRailroad Commission production, P-5 and P-4 records, data through Jul 2026.

See why checks stop on this lease

Production by month

Gas output fell 92% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 92% over the last 12 monthsMonthly gas production and oil for MAY-CHAPMAN, Aug 2023 to Jul 2026. Gas output fell 92% over the last 12 months. 127 mcf in the 12 months through Jul 2026, against 1,539 mcf in the 12 months before.Last 12 months: 127 mcfmcf per monthbbl per month002502005004007506001,000800Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 92% over the last 12 monthsMonthly gas production and oil for MAY-CHAPMAN, Aug 2023 to Jul 2026. Gas output fell 92% over the last 12 months. 127 mcf in the 12 months through Jul 2026, against 1,539 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month002502005004007506001,000800Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

63% of the gas went to a processing plant in the last 12 months

Flaring peaked at 9.5% of the gas in Mar 2025.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
63% of the gas went to a processing plant in the last 12 monthsShare of MAY-CHAPMAN gas by disposition code each month, Aug 2023 to Jul 2026. 63% of the gas went to a processing plant in the last 12 months. Flaring peaked at 9.5% of the gas in Mar 2025.Share of the lease’s gas by disposition code, per month0%50%100%Flared 9.5%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
63% of the gas went to a processing plant in the last 12 monthsShare of MAY-CHAPMAN gas by disposition code each month, Aug 2023 to Jul 2026. 63% of the gas went to a processing plant in the last 12 months. Flaring peaked at 9.5% of the gas in Mar 2025.Share of gas by disposition code0%50%100%Flared 9.5%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    63% · 938 mcf

  • Lease fuel (1)

    32% · 479 mcf

  • Flared (4)

    4.1% · 61 mcf

4.1% of the gas flared in the last 12 months. 10 months above 3%.

Wells on this lease

No wells are linked to this lease in our data

Production is still reported at lease level.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Statewide Crude Inc.CondensateGathers100Jun 1, 2018
Marathon Oil Ef LLCGas-well gasBuys100Jun 1, 2018
Marathon Oil Ef LLCGas-well gasGathers100Jun 1, 2018

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

Who buys my oilOil price check

605.31 acres on the newest permit

Check your decimal on this lease
Permits for May-Chapman
API numberWell no.Acreson the permit
42-013-345262H605.31

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-CHAPMAN
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 202600000$80.46$2.89
Jun 202602000$84.81$3.15
May 2026818447351$102.13$2.94
Apr 202610510080582$100.32$2.77
Mar 202600000$91.38$3.04
Feb 202600000$64.51$3.62
Jan 202600000$60.04$7.72
Dec 202500000$57.97$4.26
Nov 202500000$60.06$3.79
Oct 202500000$60.89$3.19
Sep 202500000$63.96$2.97
Aug 2025015000$64.86$2.91
Jul 202571670477572$68.39$3.20
Jun 202540040386595$68.17$3.02
May 2025245254170915$62.17$3.12
Apr 202557255919411911$63.54$3.42
Mar 2025676542224$68.24$4.12
Feb 202504000$71.53$4.19
Jan 202525526361343$75.74$4.13
Dec 202469868996582$70.12$3.01
Nov 20243223221691035$69.95$2.12
Oct 202443243324515414$71.99$2.20
Sep 20243943952111487$70.24$2.28
Aug 202433933818811111$76.68$1.99
Jul 20243753751471027$81.80$2.07
Jun 202432032449352$79.77$2.54
May 202454354338224615$80.02$2.12
Apr 202433833641727112$85.35$1.60
Mar 202424024433821710$81.28$1.49
Feb 20244644607437003$77.25$1.72
Jan 20244784839008457$74.15$3.18
Dec 20235075078117633$71.90$2.52
Nov 20234914926766335$77.69$2.71
Oct 20237397285795353$85.64$2.98
Sep 2023636226240$89.43$2.64
Aug 202307000$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-1)CountyAtascosa County

Marathon Oil Ef LLC in Atascosa County

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Eagleville (Eagle Ford-1) field

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New drilling permits in Atascosa County

Newest in the county: this lease has no coordinates.