Skip to content
Royalty Clerk

Texas oil lease

Producing

SAMPSON-MUELLER A

Sampson-Mueller A is an oil lease in Fayette County, Texas, operated by Magnolia Oil & Gas Operating LLC in the Giddings (Austin Chalk-3) field.

1 well

24,340bbl oil, last 12 months−30% vs prior year
Operator
Magnolia Oil & Gas Operating LLC
County
Fayette County
Field
Giddings (Austin Chalk-3)
RRC lease
03-28033

Is your check right?

Check my statement

Where it sits

This county

Fayette CountyFayetteCaldwellBastropWashingtonBurlesonLeeAustinColoradoFayette County
Fayette County
Gas, last 12 months
136,887 mcf
Oil in Jul 2026
1,830 bbl

Production by month

Oil output fell 30% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 30% over the last 12 monthsMonthly oil production and gas for SAMPSON-MUELLER A, Aug 2023 to Jul 2026. Oil output fell 30% over the last 12 months. 24,340 bbl in the 12 months through Jul 2026, against 34,904 bbl in the 12 months before.Last 12 months: 24,340 bblbbl per monthmcf per month002,00010k4,00020k6,00030k8,00040kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 30% over the last 12 monthsMonthly oil production and gas for SAMPSON-MUELLER A, Aug 2023 to Jul 2026. Oil output fell 30% over the last 12 months. 24,340 bbl in the 12 months through Jul 2026, against 34,904 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002,00010k4,00020k6,00030k8,00040kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

93% of the gas went to a transmission line in the last 12 months

  • Transmission line (2)
  • Lease fuel (1)
93% of the gas went to a transmission line in the last 12 monthsShare of SAMPSON-MUELLER A gas by disposition code each month, Aug 2023 to Jul 2026. 93% of the gas went to a transmission line 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 transmission line in the last 12 monthsShare of SAMPSON-MUELLER A gas by disposition code each month, Aug 2023 to Jul 2026. 93% of the gas went to a transmission line 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.

  • Transmission line (2)

    93% · 127,937 mcf

  • Lease fuel (1)

    6.5% · 8,950 mcf

Who has run this lease

The operator changed once, most recently in Aug 2025

Operators of this lease over timeDallas Petroleum Group, LLC, Feb 2022 to Jul 2025; Magnolia Oil & Gas Operating LLC, Aug 2025 to Jul 20262023202420252026Changed Aug 2025Dallas Petroleum Group, LLCFeb 2022 to Jul 2025Magnolia Oil & Gas Operating…Aug 2025 to now
Operators of this lease over timeDallas Petroleum Group, LLC, Feb 2022 to Jul 2025; Magnolia Oil & Gas Operating LLC, Aug 2025 to Jul 20262023202420252026Changed Aug 2025Dallas Petroleum Group, LLCFeb 2022 to Jul 2025Magnolia Oil & Gas Operating LLCAug 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on SAMPSON-MUELLER A
API numberWell no.Status
42-149-335324HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Enterprise Crude Oil LLCOilGathers50Feb 20, 2022
Texican Crude&hydrocarbons, LLCOilGathers50Feb 20, 2022
Energy Transfer CompanyCasinghead gasBuys100Feb 20, 2022
Energy Transfer CompanyCasinghead gasGathers100Feb 20, 2022

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

Who buys my oilOil price check

747.91 acres on the newest permit

An allocation well is on this lease

Permits for Sampson-Mueller A
API numberWell no.Acreson the permit
42-149-335324H747.91

SourceRailroad Commission drilling permits, Sep 26, 2026 (source 1, source 2).

Unit decimal checker

What Magnolia Oil & Gas Corporation told investors it received

Magnolia Oil & Gas Operating LLC is linked to Magnolia Oil & Gas Corporation (MGY).
Realized prices reported by Magnolia Oil & Gas Corporation
QuarterOil$ per bblFiling
Q2 2026$98.13SEC filing
Q1 2026$70.29SEC filing
Q3 2025$63.55SEC filing
Q2 2025$62.20SEC filing
Q1 2025$69.81SEC filing
Q3 2024$74.23SEC filing

SourceMagnolia Oil & Gas Corporation quarterly reports, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for SAMPSON-MUELLER A
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Magnolia Oil1,8301,91910,88810,1200$80.46$2.89
Jun 2026Magnolia Oil1,9922,31112,33511,5850$84.81$3.15
May 2026Magnolia Oil2,0791,91213,24212,4840$102.13$2.94
Apr 2026Magnolia Oil2,2562,43313,39212,6420$100.32$2.77
Mar 2026Magnolia Oil2,2412,22312,63911,8710$91.38$3.04
Feb 2026Magnolia Oil2,4412,03812,96612,2700$64.51$3.62
Jan 2026Magnolia Oil1,8372,2409,5708,9310$60.04$7.72
Dec 2025Magnolia Oil2,5312,11514,06413,2890$57.97$4.26
Nov 2025Magnolia Oil3154642,8102,0600$60.06$3.79
Oct 2025Magnolia Oil2,3252,29511,29210,5170$60.89$3.19
Sep 2025Magnolia Oil2,0562,12311,38110,6350$63.96$2.97
Aug 2025Magnolia Oil2,43715,43112,30811,5330$64.86$2.91
Jul 2025Dallas Petroleum2,6202,32312,03012,0300$68.39$3.20
Jun 2025Dallas Petroleum2,6892,75414,92914,4640$68.17$3.02
May 2025Dallas Petroleum3,0392,35716,79816,3330$62.17$3.12
Apr 2025Dallas Petroleum2,6012,70313,89913,8990$63.54$3.42
Mar 2025Dallas Petroleum2,6052,33113,72513,7250$68.24$4.12
Feb 2025Dallas Petroleum2,5592,69914,74514,7450$71.53$4.19
Jan 2025Dallas Petroleum3,2643,16716,67016,6700$75.74$4.13
Dec 2024Dallas Petroleum2,8042,71613,17813,1780$70.12$3.01
Nov 2024Dallas Petroleum2,7983,15115,52015,5200$69.95$2.12
Oct 2024Dallas Petroleum3,1683,76119,27219,2720$71.99$2.20
Sep 2024Dallas Petroleum3,3332,63019,74519,7450$70.24$2.28
Aug 2024Dallas Petroleum3,4243,37921,24021,2400$76.68$1.99
Jul 2024Dallas Petroleum3,5643,59722,48422,4840$81.80$2.07
Jun 2024Dallas Petroleum3,8333,77423,41823,4180$79.77$2.54
May 2024Dallas Petroleum4,3094,11125,28125,2810$80.02$2.12
Apr 2024Dallas Petroleum3,6423,58419,71019,7100$85.35$1.60
Mar 2024Dallas Petroleum5,0264,88725,63225,6320$81.28$1.49
Feb 2024Dallas Petroleum1,0441,4196,7826,7820$77.25$1.72
Jan 2024Dallas Petroleum4,1594,16121,62621,6260$74.15$3.18
Dec 2023Dallas Petroleum4,3414,19824,73324,7330$71.90$2.52
Nov 2023Dallas Petroleum4,4524,51726,53126,5310$77.69$2.71
Oct 2023Dallas Petroleum5,0694,87031,28631,2860$85.64$2.98
Sep 2023Dallas Petroleum5,1654,95931,28831,2880$89.43$2.64
Aug 2023Dallas Petroleum5,7175,52533,84733,8470$81.39$2.58

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

How to check your stub against this lease

Do your checks match this lease?

Check my statement

Nearby

This lease belongs to

OperatorMagnolia Oil & Gas Operating LLCFieldGiddings (Austin Chalk-3)CountyFayette County

Magnolia Oil & Gas Operating LLC in Fayette County

All Magnolia Oil & Gas Operating LLC leases →

Giddings (Austin Chalk-3) field

All leases in this field →

Leases within 10 km

Drilling permits within 10 km