Skip to content
Royalty Clerk

Texas gas well

Producing

AFFLERBACH 01 - R01 - M01 C

Afflerbach 01 - R01 - M01 C is a gas well in De Witt County, Texas, operated by Marathon Oil Ef LLC in the De Witt (Eagle Ford Shale) field.

1 well

57,244mcf gas, last 12 months−58% vs prior year
Operator
Marathon Oil Ef LLC
County
De Witt County
Field
De Witt (Eagle Ford Shale)
RRC lease
02-292494

Is your check right?

Check my statement

Where it sits

This county

De Witt CountyDe WittGoliadWilsonLavacaGonzalesKarnesVictoriaGuadalupeDe Witt County
De Witt County
Oil, last 12 months
1,336 bbl
Gas in Jul 2026
2 mcf

Checks stopped on this lease?

  • Sales

    Sales over the last 3 months fell to 0% of the 9 months before.

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 58% over the last 12 months

  • Gas (bars)
  • Oil (line)
  • Last 12 months
Gas output fell 58% over the last 12 monthsMonthly gas production and oil for AFFLERBACH 01 - R01 - M01 C, Aug 2023 to Jul 2026. Gas output fell 58% over the last 12 months. 57,244 mcf in the 12 months through Jul 2026, against 135,734 mcf in the 12 months before.Last 12 months: 57,244 mcfmcf per monthbbl per month0010k25020k50030k75040k1,00050k1,250Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Gas output fell 58% over the last 12 monthsMonthly gas production and oil for AFFLERBACH 01 - R01 - M01 C, Aug 2023 to Jul 2026. Gas output fell 58% over the last 12 months. 57,244 mcf in the 12 months through Jul 2026, against 135,734 mcf in the 12 months before.Last 12 monthsmcf per monthbbl per month0010k25020k50030k75040k1,00050k1,250Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

93% of the gas went to a processing plant in the last 12 months

  • Processing plant (3)
  • Lease fuel (1)
93% of the gas went to a processing plant in the last 12 monthsShare of AFFLERBACH 01 - R01 - M01 C gas by disposition code each month, Aug 2023 to Jul 2026. 93% 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
93% of the gas went to a processing plant in the last 12 monthsShare of AFFLERBACH 01 - R01 - M01 C gas by disposition code each month, Aug 2023 to Jul 2026. 93% 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)

    93% · 67,461 mcf

  • Lease fuel (1)

    6.7% · 4,864 mcf

Who has run this lease

The operator changed once, most recently in Mar 2023

Operators of this lease over timeEnsign Operating LLC, Apr 2022 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262023202420252026Changed Mar 2023Ensign Operating LLCApr 2022 to Feb 2023Marathon Oil Ef LLCMar 2023 to now
Operators of this lease over timeEnsign Operating LLC, Apr 2022 to Feb 2023; Marathon Oil Ef LLC, Mar 2023 to Jul 20262023202420252026Changed Mar 2023Ensign Operating LLCApr 2022 to Feb 2023Marathon Oil Ef LLCMar 2023 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on AFFLERBACH 01 - R01 - M01 C
API numberWell no.Status
42-123-3512103HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCCondensateGathers50Mar 1, 2023–
Enterprise Crude Pipeline LLCCondensateGathers50Mar 1, 2023–
Marathon Oil Ef LLCGas-well gasBuys100Mar 1, 2023–
Marathon Oil Ef LLCGas-well gasGathers100Mar 1, 2023–
Ensign Operating LLCCondensateGathers50Apr 1, 2022Mar 1, 2023
Enterprise Crude Oil LLCCondensateGathers25Apr 1, 2022Mar 1, 2023
Enterprise Crude Pipeline LLCCondensateGathers25Apr 1, 2022Mar 1, 2023
Ensign Operating LLCGas-well gasGathers50Apr 1, 2022Mar 1, 2023
Enterprise Products Operating LLCGas-well gasGathers50Apr 1, 2022Mar 1, 2023
Enterprise Products Operating LLCGas-well gasBuys100Apr 1, 2022Mar 1, 2023

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

Who buys my oilOil price check

1,484.86 acres on the newest permit

  • Worth asking

    A production sharing agreement well is on this lease

    A production sharing agreement divides production by a method the agreement sets. Ask the operator for the agreement and the tract percentage it gives your land.

  • Worth asking

    A Rule 37 case is listed

    The RRC permit records list a Rule 37 case. This does not establish your royalty share. Ask for the permit and unit plat for your well.

Check your decimal on this lease
Permits for Afflerbach 01 - R01 - M01 C
API numberWell no.Acreson the permit
42-123-3512103H1,484.86

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 AFFLERBACH 01 - R01 - M01 C
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Marathon Oil00220$80.46$2.89
Jun 2026Marathon Oil0015140$84.81$3.15
May 2026Marathon Oil7720180$102.13$2.94
Apr 2026Marathon Oil242440370$100.32$2.77
Mar 2026Marathon Oil00000$91.38$3.04
Feb 2026Marathon Oil44330$64.51$3.62
Jan 2026Marathon Oil2362369,3938,7390$60.04$7.72
Dec 2025Marathon Oil4430270$57.97$4.26
Nov 2025Marathon Oil22222211,13610,1820$60.06$3.79
Oct 2025Marathon Oil30230212,51611,6030$60.89$3.19
Sep 2025Marathon Oil1731739,2118,5420$63.96$2.97
Aug 2025Marathon Oil36436414,87814,0970$64.86$2.91
Jul 2025Marathon Oil36336315,08114,1970$68.39$3.20
Jun 2025Marathon Oil1381385,7195,2680$68.17$3.02
May 2025Marathon Oil14142081940$62.17$3.12
Apr 2025Marathon Oil96965,9095,5170$63.54$3.42
Mar 2025Marathon Oil47247213,26212,5210$68.24$4.12
Feb 2025Marathon Oil3383389,2078,7590$71.53$4.19
Jan 2025Marathon Oil57157112,59611,7700$75.74$4.13
Dec 2024Marathon Oil53853815,23114,3490$70.12$3.01
Nov 2024Marathon Oil41241210,3939,7740$69.95$2.12
Oct 2024Marathon Oil37737711,04610,4300$71.99$2.20
Sep 2024Marathon Oil59159117,01516,1210$70.24$2.28
Aug 2024Marathon Oil67267220,06720,0660$76.68$1.99
Jul 2024Marathon Oil5795798,6338,6310$81.80$2.07
Jun 2024Marathon Oil60760710,38410,3830$79.77$2.54
May 2024Marathon Oil75475420,51820,5170$80.02$2.12
Apr 2024Marathon Oil61961918,98418,9720$85.35$1.60
Mar 2024Marathon Oil92692622,34522,3420$81.28$1.49
Feb 2024Marathon Oil65265218,32818,3280$77.25$1.72
Jan 2024Marathon Oil85385325,19225,1900$74.15$3.18
Dec 2023Marathon Oil84084027,04727,0460$71.90$2.52
Nov 2023Marathon Oil1,1261,12626,38126,3800$77.69$2.71
Oct 2023Marathon Oil92492426,46526,4630$85.64$2.98
Sep 2023Marathon Oil84184130,64430,6420$89.43$2.64
Aug 2023Marathon Oil99699634,48434,4640$81.39$2.58

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

How to check your stub against this lease Checks stopped on this lease? See the likely reasons

Do your checks match this lease?

Check my statement

Nearby

This lease belongs to

OperatorMarathon Oil Ef LLCFieldDe Witt (Eagle Ford Shale)CountyDe Witt County

Marathon Oil Ef LLC in De Witt County

All Marathon Oil Ef LLC leases →

De Witt (Eagle Ford Shale) field

All leases in this field →

Leases within 10 km

Drilling permits within 10 km