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Texas oil lease

Producing

MARY 18-7A-AZ

Mary 18-7A-Az is an oil lease in Upton County, Texas, operated by Pioneer Natural Res. USA, Inc. in the Spraberry (Trend Area) R 40 Exc field.

1 well

30,659bbl oil, last 12 months−8% vs prior year
Operator
Pioneer Natural Res. USA, Inc.
County
Upton County
Field
Spraberry (Trend Area) R 40 Exc
RRC lease
7C-19484

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Where it sits

This county

Upton CountyUptonMidlandCraneGlasscockReaganEctorUpton County
Upton County
Gas, last 12 months
147,990 mcf
Oil in Jul 2026
2,657 bbl

Production by month

Oil output fell 8% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 8% over the last 12 monthsMonthly oil production and gas for MARY 18-7A-AZ, Aug 2023 to Jul 2026. Oil output fell 8% over the last 12 months. 30,659 bbl in the 12 months through Jul 2026, against 33,254 bbl in the 12 months before.Last 12 months: 30,659 bblbbl per monthmcf per month001,00010k2,00020k3,00030k4,00040kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 8% over the last 12 monthsMonthly oil production and gas for MARY 18-7A-AZ, Aug 2023 to Jul 2026. Oil output fell 8% over the last 12 months. 30,659 bbl in the 12 months through Jul 2026, against 33,254 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,00010k2,00020k3,00030k4,00040kJan 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

Flaring peaked at 4.7% of the gas in Jan 2026.

  • Processing plant (3)
  • Lease fuel (1)
  • Flared (4)
93% of the gas went to a processing plant in the last 12 monthsShare of MARY 18-7A-AZ 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. Flaring peaked at 4.7% of the gas in Jan 2026.Share of the lease’s gas by disposition code, per month0%50%100%Flared 4.7%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
93% of the gas went to a processing plant in the last 12 monthsShare of MARY 18-7A-AZ 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. Flaring peaked at 4.7% of the gas in Jan 2026.Share of gas by disposition code0%50%100%Flared 4.7%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    93% · 137,823 mcf

  • Lease fuel (1)

    5.7% · 8,364 mcf

  • Flared (4)

    1.2% · 1,803 mcf

1.2% of the gas flared in the last 12 months. 4 months above 3%.

Who has run this lease

The operator changed once, most recently in Feb 2021

Operators of this lease over timeParsley Energy Operations, LLC, Jan 2020 to Jan 2021; Pioneer Natural Res. USA, Inc., Feb 2021 to Jul 20262020202120222023202420252026Changed Feb 2021Parsley Energy Operations, LLCJan 2020 to Jan 2021Pioneer Natural Res. USA, Inc.Feb 2021 to now
Operators of this lease over timeParsley Energy Operations, LLC, Jan 2020 to Jan 2021; Pioneer Natural Res. USA, Inc., Feb 2021 to Jul 20262020202120222023202420252026Changed Feb 2021Parsley Energy Operations, LLCJan 2020 to Jan 2021Pioneer Natural Res. USA, Inc.Feb 2021 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on MARY 18-7A-AZ
API numberWell no.Status
42-461-403154202HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Medallion Operating Company, LLCOilGathers50Dec 16, 2016
Shell Trading (Us) CompanyOilGathers50Dec 16, 2016
Targa Pl Mid-Cont Westtex LLCCasinghead gasBuys100Dec 16, 2016
Targa Pl Mid-Cont Westtex LLCCasinghead gasGathers100Dec 16, 2016

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

Who buys my oilOil price check

1,223.30 acres on the newest permit

  • Worth asking

    An allocation well is on this lease

    A well drilled across several tracts shares its production by an allocation formula, so the decimal is not always your acres over the unit acres. Ask the operator for the allocation formula and the tract factor for 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 Mary 18-7A-Az
API numberWell no.Acreson the permit
42-461-403154202H1,223.30

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

Unit decimal checker

Estimate your royalty

36 months, newest first

Ledger for MARY 18-7A-AZ
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Pioneer Natural2,6572,56720,08819,1260$80.46$2.89
Jun 2026Pioneer Natural2,4032,43313,69112,73945$84.81$3.15
May 2026Pioneer Natural2,0411,98412,43011,7010$102.13$2.94
Apr 2026Pioneer Natural2,3302,37212,30011,46332$100.32$2.77
Mar 2026Pioneer Natural2,7842,97811,49610,93034$91.38$3.04
Feb 2026Pioneer Natural2,7372,7299,6868,862178$64.51$3.62
Jan 2026Pioneer Natural2,5252,47410,1388,944481$60.04$7.72
Dec 2025Pioneer Natural2,6412,55111,58010,9440$57.97$4.26
Nov 2025Pioneer Natural2,5822,6848,8168,3260$60.06$3.79
Oct 2025Pioneer Natural3,0423,25213,06911,956459$60.89$3.19
Sep 2025Pioneer Natural2,3002,12511,90110,879383$63.96$2.97
Aug 2025Pioneer Natural2,6172,52412,79511,953191$64.86$2.91
Jul 2025Pioneer Natural2,4542,51711,91211,26747$68.39$3.20
Jun 2025Pioneer Natural2,6382,47112,78212,1520$68.17$3.02
May 2025Pioneer Natural3,0003,05911,15410,5400$62.17$3.12
Apr 2025Pioneer Natural2,7382,6928,7458,1923$63.54$3.42
Mar 2025Pioneer Natural2,7952,7889,7229,0990$68.24$4.12
Feb 2025Pioneer Natural2,6292,6399,0848,41832$71.53$4.19
Jan 2025Pioneer Natural2,8972,8299,4138,8141$75.74$4.13
Dec 2024Pioneer Natural2,9913,0029,7359,2010$70.12$3.01
Nov 2024Pioneer Natural2,7092,7669,8429,3200$69.95$2.12
Oct 2024Pioneer Natural2,7632,78211,03810,37342$71.99$2.20
Sep 2024Pioneer Natural3,5223,47819,79318,475339$70.24$2.28
Aug 2024Pioneer Natural2,1182,15913,50412,78223$76.68$1.99
Jul 2024Pioneer Natural3,0983,09321,31220,4210$81.80$2.07
Jun 2024Pioneer Natural3,0923,15218,21717,4120$79.77$2.54
May 2024Pioneer Natural3,3523,31419,80718,87821$80.02$2.12
Apr 2024Pioneer Natural3,7123,73721,89520,578343$85.35$1.60
Mar 2024Pioneer Natural3,6363,58620,04219,1520$81.28$1.49
Feb 2024Pioneer Natural2,0241,9397,4926,841323$77.25$1.72
Jan 2024Pioneer Natural2,8502,92214,48013,83832$74.15$3.18
Dec 2023Pioneer Natural3,7413,77519,69918,74850$71.90$2.52
Nov 2023Pioneer Natural3,5503,43622,65121,5850$77.69$2.71
Oct 2023Pioneer Natural3,7663,79728,98227,73579$85.64$2.98
Sep 2023Pioneer Natural3,3853,45130,29929,0870$89.43$2.64
Aug 2023Pioneer Natural3,7373,82837,20735,521159$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

OperatorPioneer Natural Res. USA, Inc.FieldSpraberry (Trend Area) R 40 ExcCountyUpton County

Pioneer Natural Res. USA, Inc. in Upton County

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Spraberry (Trend Area) R 40 Exc field

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