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Texas oil lease

Producing

H. MUELLER 18A

H. Mueller 18A is an oil lease in De Witt County, Texas, operated by BPX Operating Company in the Eagleville (Eagle Ford-2) field.

7 wells

6,038bbl oil, last 12 months−48% vs prior year
Operator
BPX Operating Company
County
De Witt County
Field
Eagleville (Eagle Ford-2)
RRC lease
02-10223

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Where it sits

This county

De Witt CountyDe WittGoliadWilsonLavacaGonzalesKarnesVictoriaGuadalupeDe Witt County
De Witt County
Gas, last 12 months
8,450 mcf
Oil in Jul 2026
281 bbl

Checks stopped on this lease?

  • Operator

    Operator changed: BPX Operating Company took over from Devon Energy Production Co, L.P. in Jul 2025.

  • Buyer

    Buyer changed: BP ENERGY CO. replaced DEVON GAS SERVICES, L.P. as the buyer of this lease's gas from oil wells on Jul 1, 2025.

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

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Production by month

Oil output fell 48% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 48% over the last 12 monthsMonthly oil production and gas for H. MUELLER 18A, Aug 2023 to Jul 2026. Oil output fell 48% over the last 12 months. 6,038 bbl in the 12 months through Jul 2026, against 11,573 bbl in the 12 months before.Last 12 months: 6,038 bblbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 48% over the last 12 monthsMonthly oil production and gas for H. MUELLER 18A, Aug 2023 to Jul 2026. Oil output fell 48% over the last 12 months. 6,038 bbl in the 12 months through Jul 2026, against 11,573 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0002,0002,0004,0003,0006,0004,0008,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Mar 2026 the lease's gas goes to lease fuel instead of a processing plant

  • Processing plant (3)
  • Lease fuel (1)
Since Mar 2026 the lease's gas goes to lease fuel instead of a processing plantShare of H. MUELLER 18A gas by disposition code each month, Aug 2023 to Jul 2026. Since Mar 2026 the lease's gas goes to lease fuel instead of a processing plant.Share of the lease’s gas by disposition code, per month0%50%100%Mar 2026: plant to fuelOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Mar 2026 the lease's gas goes to lease fuel instead of a processing plantShare of H. MUELLER 18A gas by disposition code each month, Aug 2023 to Jul 2026. Since Mar 2026 the lease's gas goes to lease fuel instead of a processing plant.Share of gas by disposition code0%50%100%Mar 26: plant to fuelJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Lease fuel (1)

    85% · 7,444 mcf

  • Processing plant (3)

    15% · 1,358 mcf

Who has run this lease

The operator changed once, most recently in Jul 2025

Operators of this lease over timeDevon Energy Production Co, L.P., Jan 2020 to Jun 2025; BPX Operating Company, Jul 2025 to Jul 20262020202120222023202420252026Changed Jul 2025Devon Energy Production Co, L…Jan 2020 to Jun 2025BPX Operating CompanyJul 2025 to now
Operators of this lease over timeDevon Energy Production Co, L.P., Jan 2020 to Jun 2025; BPX Operating Company, Jul 2025 to Jul 20262020202120222023202420252026Changed Jul 2025Devon Energy Production Co, L.P.Jan 2020 to Jun 2025BPX Operating CompanyJul 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

7 wells on this lease

Wells on H. MUELLER 18A
API numberWell no.Status
42-123-326981HActive
42-123-331572HActive
42-123-331583HActive
42-123-331594HActive
42-123-331645HActive
42-123-331656HShut-in
42-123-331667HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Harvest Marketing & Trading, LLCOilGathers20Jul 1, 2025–
Ngl Crude Assets and Mktg, LLCOilGathers20Jan 1, 2026–
Phillips 66 CompanyOilGathers20Jul 1, 2025–
Shell Trading (Us) CompanyOilGathers20Jul 1, 2025–
Gulfmark Energy, Inc.OilGathers10Jan 1, 2026–
Ptt Premier Trading and Tran LLCOilGathers10Jul 1, 2025–
Bp Energy Co.Casinghead gasBuys100Jul 1, 2025–
Bpx Eagleford Jv Holdings LLCCasinghead gasGathers100Jan 1, 2026–
Bpx (Eagle Ford) Gathering LLCCasinghead gasGathers100Jan 1, 2020Jan 1, 2026
Gulfmark Energy, Inc.OilGathers20Jul 1, 2025Jan 1, 2026
Ngl Crude Assets and Mktg, LLCOilGathers10Jul 1, 2025Jan 1, 2026
Devon Gas Services, L.p.Casinghead gasBuys100Aug 25, 2014Jul 1, 2025
Devon Gas Services, L.p.OilGathers20Jan 1, 2021Jul 1, 2025
Enterprise Crude Oil LLCOilGathers20Jan 1, 2021Jul 1, 2025

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

Who buys my oilOil price check

371.03 acres on the newest permit

  • Good to know

    7 wells are listed on this lease

    Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.

  • 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 H. Mueller 18A
API numberWell no.Acreson the permit
42-123-331645H371.03
42-123-331656H371.03
42-123-331667H371.03
42-123-331572H371.03
42-123-331583H371.03
42-123-331594H371.03
42-123-326981H371.03

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for H. MUELLER 18A
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026BPX Operating2811861900$80.46$2.89
Jun 2026BPX Operating51049310300$84.81$3.15
May 2026BPX Operating132193100$102.13$2.94
Apr 2026BPX Operating606579100$100.32$2.77
Mar 2026BPX Operating574574100$91.38$3.04
Feb 2026BPX Operating2113901,7331,3580$64.51$3.62
Jan 2026BPX Operating7157692,66100$60.04$7.72
Dec 2025BPX Operating746763000$57.97$4.26
Nov 2025BPX Operating6055673,01000$60.06$3.79
Oct 2025BPX Operating30219045500$60.89$3.19
Sep 2025BPX Operating62656430300$63.96$2.97
Aug 2025BPX Operating73074216300$64.86$2.91
Jul 2025BPX Operating02635200$68.39$3.20
Jun 2025Devon Energy1,6461,65628200$68.17$3.02
May 2025Devon Energy1,4371,52111400$62.17$3.12
Apr 2025Devon Energy1,9512,1101,79000$63.54$3.42
Mar 2025Devon Energy2,7262,5985,9911,9640$68.24$4.12
Feb 2025Devon Energy1061922,86800$71.53$4.19
Jan 2025Devon Energy9781,0321,89200$75.74$4.13
Dec 2024Devon Energy2943151,55700$70.12$3.01
Nov 2024Devon Energy6144562,66900$69.95$2.12
Oct 2024Devon Energy5855302,62400$71.99$2.20
Sep 2024Devon Energy5904682,39000$70.24$2.28
Aug 2024Devon Energy6466412,11700$76.68$1.99
Jul 2024Devon Energy5406281,83200$81.80$2.07
Jun 2024Devon Energy6095281,93100$79.77$2.54
May 2024Devon Energy6486712,18100$80.02$2.12
Apr 2024Devon Energy6176321,88300$85.35$1.60
Mar 2024Devon Energy5405281,76100$81.28$1.49
Feb 2024Devon Energy5977171,90800$77.25$1.72
Jan 2024Devon Energy6836051,911360$74.15$3.18
Dec 2023Devon Energy7116552,10600$71.90$2.52
Nov 2023Devon Energy1,1261,1723,0716000$77.69$2.71
Oct 2023Devon Energy1,0671,0253,0075160$85.64$2.98
Sep 2023Devon Energy1,0811,3102,9334460$89.43$2.64
Aug 2023Devon Energy1,1278973,3957330$81.39$2.58

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

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This lease belongs to

OperatorBPX Operating CompanyFieldEagleville (Eagle Ford-2)CountyDe Witt County

BPX Operating Company in De Witt County

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Eagleville (Eagle Ford-2) field

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