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Texas oil lease

Producing

MATTIE

Mattie is an oil lease in Andrews County, Texas, operated by Cog Operating LLC in the Spraberry (Trend Area) field.

3 wells

1,607bbl oil, last 12 months−32% vs prior year
RRC lease
08-40566

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Where it sits

This county

Andrews CountyAndrewsMartinGainesDawsonAndrews County
Andrews County
Oil in Jul 2026
50 bbl
Reporting since
Jan 2020

Production by month

Oil output fell 32% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 32% over the last 12 monthsMonthly oil production and gas for MATTIE, Aug 2023 to Jul 2026. Oil output fell 32% over the last 12 months. 1,607 bbl in the 12 months through Jul 2026, against 2,365 bbl in the 12 months before.Last 12 months: 1,607 bblbbl per monthmcf per month00100100200200300300400400500500Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 32% over the last 12 monthsMonthly oil production and gas for MATTIE, Aug 2023 to Jul 2026. Oil output fell 32% over the last 12 months. 1,607 bbl in the 12 months through Jul 2026, against 2,365 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month00100100200200300300400400500500Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Over 99% of the gas went to a processing plant in the last 12 months

Flaring peaked at 100.0% of the gas in May 2025.

  • Processing plant (3)
  • Flared (4)
Over 99% of the gas went to a processing plant in the last 12 monthsShare of MATTIE gas by disposition code each month, Aug 2023 to Jul 2026. Over 99% of the gas went to a processing plant in the last 12 months. Flaring peaked at 100.0% of the gas in May 2025.Share of the lease’s gas by disposition code, per month0%50%100%Flared 100.0%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Over 99% of the gas went to a processing plant in the last 12 monthsShare of MATTIE gas by disposition code each month, Aug 2023 to Jul 2026. Over 99% of the gas went to a processing plant in the last 12 months. Flaring peaked at 100.0% of the gas in May 2025.Share of gas by disposition code0%50%100%Flared 100.0%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Processing plant (3)

    100% · 3,510 mcf

  • Flared (4)

    0.3% · 11 mcf

0.3% of the gas flared in the last 12 months. One month above 3%.

3 wells on this lease

Wells on MATTIE
API numberWell no.Status
42-003-419092010Shut-in
42-003-439832072Active
42-003-446612008Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Energy Trans Crude Marketing LLCOilGathers100Jun 1, 2026–
Dcp Operating Company, LPCasinghead gasBuys100Apr 1, 2017–
Dcp Operating Company, LPCasinghead gasGathers100Apr 1, 2017–
Eastex Crude Company, LLCOilGathers100Nov 1, 2024Jun 1, 2026
Sentinel Transportation, LLCOilGathers100Aug 1, 2016Nov 1, 2024

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

644.10 acres on the newest permit

Permits for Mattie
API numberWell no.Acreson the permit
42-003-446612008644.10
42-003-439832072644.10
42-003-419092010644.10

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

What ConocoPhillips told investors it received

Cog Operating LLC is linked to ConocoPhillips (COP).
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
Q3 2024$76.77SEC filing

SourceConocoPhillips quarterly reports, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for MATTIE
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026500000$80.46$2.89
Jun 2026390000$84.81$3.15
May 2026590000$102.13$2.94
Apr 2026107177000$100.32$2.77
Mar 20261300000$91.38$3.04
Feb 2026150340000$64.51$3.62
Jan 2026252180000$60.04$7.72
Dec 2025101173000$57.97$4.26
Nov 2025165173000$60.06$3.79
Oct 2025186174000$60.89$3.19
Sep 2025193168000$63.96$2.97
Aug 20251750000$64.86$2.91
Jul 2025183328000$68.39$3.20
Jun 2025172170000$68.17$3.02
May 202521033711011$62.17$3.12
Apr 2025274170000$63.54$3.42
Mar 20251571711071070$68.24$4.12
Feb 20251991732792790$71.53$4.19
Jan 20252121813483480$75.74$4.13
Dec 20241621701291290$70.12$3.01
Nov 20242331713583580$69.95$2.12
Oct 20241791834144140$71.99$2.20
Sep 20241851813773770$70.24$2.28
Aug 20241991844154150$76.68$1.99
Jul 20242393694084080$81.80$2.07
Jun 20242291883843840$79.77$2.54
May 2024201185000$80.02$2.12
Apr 20241981862912910$85.35$1.60
Mar 20241911864694690$81.28$1.49
Feb 20242563733203200$77.25$1.72
Jan 20241841862292290$74.15$3.18
Dec 20232751862062060$71.90$2.52
Nov 20232391871541540$77.69$2.71
Oct 20232241871891890$85.64$2.98
Sep 20231821851621620$89.43$2.64
Aug 20232377341661660$81.39$2.58

Flared above 3%

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

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Nearby

Cog Operating LLC in Andrews County

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Spraberry (Trend Area) field

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