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Texas oil lease

Producing

COX "26"

Cox "26" is an oil lease in Martin County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.

1 well

2,579bbl oil, last 12 months−25% vs prior year
Operator
Diamondback E&P LLC
County
Martin County
Field
Spraberry (Trend Area)
RRC lease
08-40859

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Where it sits

This county

Martin CountyMartinGainesAndrewsHowardDawsonBordenMartin County
Martin County
Oil in Jul 2026
147 bbl
Reporting since
Jan 2020

Production by month

Oil output fell 25% over the last 12 months

  • Oil (bars)
  • Last 12 months
Oil output fell 25% over the last 12 monthsMonthly oil production for COX "26", Aug 2023 to Jul 2026. Oil output fell 25% over the last 12 months. 2,579 bbl in the 12 months through Jul 2026, against 3,457 bbl in the 12 months before.Last 12 months: 2,579 bblbbl per month0200400600800Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 25% over the last 12 monthsMonthly oil production for COX "26", Aug 2023 to Jul 2026. Oil output fell 25% over the last 12 months. 2,579 bbl in the 12 months through Jul 2026, against 3,457 bbl in the 12 months before.Last 12 monthsbbl per month0200400600800Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

No gas disposition reported for this lease

The operator has not reported where the gas went in the months we hold.

Who has run this lease

The operator changed once, most recently in Jan 2025

Operators of this lease over timeEndeavor Energy Resources L.P., Jan 2020 to Dec 2024; Diamondback E&P LLC, Jan 2025 to Jul 20262020202120222023202420252026Changed Jan 2025Endeavor Energy Resources L.P.Jan 2020 to Dec 2024Diamondback E&P LLCJan 2025 to now
Operators of this lease over timeEndeavor Energy Resources L.P., Jan 2020 to Dec 2024; Diamondback E&P LLC, Jan 2025 to Jul 20262020202120222023202420252026Changed Jan 2025Endeavor Energy Resources L.P.Jan 2020 to Dec 2024Diamondback E&P LLCJan 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on COX "26"
API numberWell no.Status
42-317-363261Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Explore Logistics LLCOilGathers100Apr 1, 2025–
Et Gathering & Processing LLCCasinghead gasBuys100Mar 1, 2026–
Energy Transfer CompanyCasinghead gasGathers100Apr 1, 2025–
Etc Gas Processing, LLCCasinghead gasBuys100Apr 1, 2025Mar 1, 2026
Wtg Gas Processing, L.p.Casinghead gasGathers100Feb 20, 2011Apr 1, 2025
Wtg Gas Processing, L.p.Casinghead gasBuys100Nov 1, 2017Apr 1, 2025
Oasis Transp & Marketing Corp.OilGathers100Apr 1, 2018Apr 1, 2025

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

Who buys my oilOil price check

166.40 acres on the newest permit

Permits for Cox "26"
API numberWell no.Acreson the permit
42-317-363261166.40

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

Unit decimal checker

What Diamondback Energy, Inc. told investors it received

Diamondback E&P LLC is linked to Diamondback Energy, Inc. (FANG).
Realized prices reported by Diamondback Energy, Inc.
QuarterOil$ per bblFiling
Q2 2026$96.82SEC filing
Q1 2026$73.47SEC filing
Q4 2025$58.00SEC filing
Q3 2025$64.60SEC filing
Q2 2025$63.23SEC filing
Q1 2025$70.95SEC filing

SourceDiamondback Energy, Inc. quarterly reports, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for COX "26"
MonthOil producedbblOil soldbblWTI$/bblHenry Hub$/MMBtu
Jul 2026Diamondback E&P147183$80.46$2.89
Jun 2026Diamondback E&P246178$84.81$3.15
May 2026Diamondback E&P126168$102.13$2.94
Apr 2026Diamondback E&P231182$100.32$2.77
Mar 2026Diamondback E&P248356$91.38$3.04
Feb 2026Diamondback E&P243187$64.51$3.62
Jan 2026Diamondback E&P244182$60.04$7.72
Dec 2025Diamondback E&P273374$57.97$4.26
Nov 2025Diamondback E&P284356$60.06$3.79
Oct 2025Diamondback E&P537360$60.89$3.19
Sep 2025Diamondback E&P00$63.96$2.97
Aug 2025Diamondback E&P00$64.86$2.91
Jul 2025Diamondback E&P179176$68.39$3.20
Jun 2025Diamondback E&P262362$68.17$3.02
May 2025Diamondback E&P293176$62.17$3.12
Apr 2025Diamondback E&P305361$63.54$3.42
Mar 2025Diamondback E&P305355$68.24$4.12
Feb 2025Diamondback E&P320372$71.53$4.19
Jan 2025Diamondback E&P296181$75.74$4.13
Dec 2024Endeavor Energy382556$70.12$3.01
Nov 2024Endeavor Energy2070$69.95$2.12
Oct 2024Endeavor Energy283351$71.99$2.20
Sep 2024Endeavor Energy291355$70.24$2.28
Aug 2024Endeavor Energy334356$76.68$1.99
Jul 2024Endeavor Energy216177$81.80$2.07
Jun 2024Endeavor Energy313324$79.77$2.54
May 2024Endeavor Energy336339$80.02$2.12
Apr 2024Endeavor Energy340530$85.35$1.60
Mar 2024Endeavor Energy416173$81.28$1.49
Feb 2024Endeavor Energy388339$77.25$1.72
Jan 2024Endeavor Energy00$74.15$3.18
Dec 2023Endeavor Energy141187$71.90$2.52
Nov 2023Endeavor Energy268349$77.69$2.71
Oct 2023Endeavor Energy304348$85.64$2.98
Sep 2023Endeavor Energy320340$89.43$2.64
Aug 2023Endeavor Energy393340$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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Nearby

This lease belongs to

OperatorDiamondback E&P LLCFieldSpraberry (Trend Area)CountyMartin County

Diamondback E&P LLC in Martin County

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Spraberry (Trend Area) field

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