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Texas oil lease

Producing

RIO BRAZOS 26-15 UNIT 1

Rio Brazos 26-15 Unit 1 is an oil lease in Midland County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.

14 wells

447,744bbl oil, last 12 months−38% vs prior year
Operator
Diamondback E&P LLC
County
Midland County
Field
Spraberry (Trend Area)
RRC lease
08-57741

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Where it sits

This county

Midland CountyMidlandMartinAndrewsGlasscockHowardEctorMidland County
Midland County
Gas, last 12 months
3,722,018 mcf
Oil in Jul 2026
29,919 bbl

Checks stopped on this lease?

  • Operator

    Operator changed: Diamondback E&P LLC took over from Endeavor Energy Resources L.P. in Jan 2025.

  • Buyer

    Buyer changed: ETC GAS PROCESSING, LLC, ENTERPRISE M B MIDSTREAM LLC, TARGA PL MID-CONT WESTTEX LLC replaced ENTERPRISE PRODUCTS OPERATING LLC as the buyer of this lease's gas from oil wells on Jan 1, 2025.

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

See why checks stop on this lease

Production by month

Oil output fell 38% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 38% over the last 12 monthsMonthly oil production and gas for RIO BRAZOS 26-15 UNIT 1, Aug 2023 to Jul 2026. Oil output fell 38% over the last 12 months. 447,744 bbl in the 12 months through Jul 2026, against 721,163 bbl in the 12 months before.Last 12 months: 447,744 bblbbl per monthmcf per month0050k200k100k400k150k600k200k800k250k1MOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 38% over the last 12 monthsMonthly oil production and gas for RIO BRAZOS 26-15 UNIT 1, Aug 2023 to Jul 2026. Oil output fell 38% over the last 12 months. 447,744 bbl in the 12 months through Jul 2026, against 721,163 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0050k200k100k400k150k600k200k800k250k1MJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plant

Flaring peaked at 4.8% of the gas in Jun 2026.

  • Processing plant (3)
  • Transmission line (2)
  • Lease fuel (1)
  • Other (5 to 8)
  • Flared (4)
Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plantShare of RIO BRAZOS 26-15 UNIT 1 gas by disposition code each month, Aug 2023 to Jul 2026. Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plant. Flaring peaked at 4.8% of the gas in Jun 2026.Share of the lease’s gas by disposition code, per month0%50%100%Nov 2024: plant to lineFlared 4.8%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plantShare of RIO BRAZOS 26-15 UNIT 1 gas by disposition code each month, Aug 2023 to Jul 2026. Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plant. Flaring peaked at 4.8% of the gas in Jun 2026.Share of gas by disposition code0%50%100%Nov 24: plant to lineFlared 4.8%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    97% · 3,601,691 mcf

  • Lease fuel (1)

    1.3% · 49,155 mcf

  • Flared (4)

    1.2% · 46,470 mcf

  • Other (5 to 8)

    0.7% · 24,702 mcf

1.2% of the gas flared in the last 12 months. 2 months above 3%.

Who has run this lease

The operator changed once, most recently in Jan 2025

Operators of this lease over timeEndeavor Energy Resources L.P., Dec 2022 to Dec 2024; Diamondback E&P LLC, Jan 2025 to Jul 20262023202420252026Changed Jan 2025Endeavor Energy Resources L.P.Dec 2022 to Dec 2024Diamondback E&P LLCJan 2025 to now
Operators of this lease over timeEndeavor Energy Resources L.P., Dec 2022 to Dec 2024; Diamondback E&P LLC, Jan 2025 to Jul 20262023202420252026Changed Jan 2025Endeavor Energy Resources L.P.Dec 2022 to Dec 2024Diamondback E&P LLCJan 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

14 wells on this lease

Wells on RIO BRAZOS 26-15 UNIT 1
API numberWell no.Status
42-329-45377111Active
42-329-45378213Active
42-329-45379121Active
42-329-45380122Active
42-329-45381223Active
42-329-45382124Active
42-329-45383231Active
42-329-45384132Active
42-329-45385133Active
42-329-45386234Active
42-329-45387141Active
42-329-45388242Active
42-329-45404143Active
42-329-45405144Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Energy Transfer CompanyOilGathers100Jan 1, 2025–
Enterprise M B Midstream LLCCasinghead gasBuys90Mar 1, 2026–
Et Gathering & Processing LLCCasinghead gasBuys5Mar 1, 2026–
Targa Pl Mid-Cont Westtex LLCCasinghead gasBuys5Mar 1, 2026–
Enterprise Products Operating LLCCasinghead gasGathers90Mar 1, 2026–
Energy Transfer CompanyCasinghead gasGathers5Mar 1, 2026–
Targa Pl Mid-Cont Westtex LLCCasinghead gasGathers5Mar 1, 2026–
Enterprise Products Operating LLCCasinghead gasGathers100Sep 1, 2025Mar 1, 2026
Enterprise M B Midstream LLCCasinghead gasBuys100Sep 1, 2025Mar 1, 2026
Energy Transfer CompanyCasinghead gasGathers33Jan 1, 2025Sep 1, 2025
Enterprise Products Operating LLCCasinghead gasGathers33Jan 1, 2025Sep 1, 2025
Targa Pl Mid-Cont Westtex LLCCasinghead gasGathers34Jan 1, 2025Sep 1, 2025
Enterprise M B Midstream LLCCasinghead gasBuys33Jan 1, 2025Sep 1, 2025

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

Who buys my oilOil price check

810.40 acres on the newest permit

  • Good to know

    14 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 Rio Brazos 26-15 Unit 1
API numberWell no.Acreson the permit
42-329-45404143810.40
42-329-45405144810.40
42-329-45377111810.40
42-329-45378213810.40
42-329-45388242810.40
42-329-45379121810.40
42-329-45380122810.40
42-329-45381223810.40
42-329-45382124810.40
42-329-45383231810.40
42-329-45384132810.40
42-329-45385133810.40

SourceRailroad Commission drilling permits, Oct 3, 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 RIO BRAZOS 26-15 UNIT 1
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Diamondback E&P29,91929,985308,184304,4681,913$80.46$2.89
Jun 2026Diamondback E&P31,06231,023304,037287,74514,510$84.81$3.15
May 2026Diamondback E&P32,78233,458343,473323,99811,313$102.13$2.94
Apr 2026Diamondback E&P34,21033,633324,789316,3174,827$100.32$2.77
Mar 2026Diamondback E&P38,42538,466344,330335,3214,100$91.38$3.04
Feb 2026Diamondback E&P36,27936,310285,903280,878840$64.51$3.62
Jan 2026Diamondback E&P39,33639,270286,595280,5211,271$60.04$7.72
Dec 2025Diamondback E&P37,51137,602287,032282,070270$57.97$4.26
Nov 2025Diamondback E&P39,42939,403291,642286,654561$60.06$3.79
Oct 2025Diamondback E&P42,85742,816314,605305,043161$60.89$3.19
Sep 2025Diamondback E&P41,02541,054305,451290,7241,648$63.96$2.97
Aug 2025Diamondback E&P44,90944,911325,977307,9525,056$64.86$2.91
Jul 2025Diamondback E&P47,82847,792345,595328,2174,301$68.39$3.20
Jun 2025Diamondback E&P46,82646,867319,015305,383115$68.17$3.02
May 2025Diamondback E&P49,60949,589323,459309,454124$62.17$3.12
Apr 2025Diamondback E&P52,12052,162320,244306,10555$63.54$3.42
Mar 2025Diamondback E&P53,86953,901321,898303,5574,089$68.24$4.12
Feb 2025Diamondback E&P55,95356,014298,260284,181488$71.53$4.19
Jan 2025Diamondback E&P58,36958,345301,894286,800670$75.74$4.13
Dec 2024Endeavor Energy65,50365,642336,670326,49234$70.12$3.01
Nov 2024Endeavor Energy62,23862,136329,071319,17365$69.95$2.12
Oct 2024Endeavor Energy73,95273,900383,835365,8266,469$71.99$2.20
Sep 2024Endeavor Energy75,36675,233367,626353,8722,685$70.24$2.28
Aug 2024Endeavor Energy79,53079,431353,177341,083959$76.68$1.99
Jul 2024Endeavor Energy86,25586,271371,276359,574688$81.80$2.07
Jun 2024Endeavor Energy79,41779,450341,540325,9865,163$79.77$2.54
May 2024Endeavor Energy87,32487,329379,135365,1512,983$80.02$2.12
Apr 2024Endeavor Energy94,18594,165374,914361,2002,677$85.35$1.60
Mar 2024Endeavor Energy106,260106,272402,478390,621673$81.28$1.49
Feb 2024Endeavor Energy111,231111,212381,600364,7505,761$77.25$1.72
Jan 2024Endeavor Energy120,872121,163671,745654,6686,689$74.15$3.18
Dec 2023Endeavor Energy136,738136,658376,024365,321188$71.90$2.52
Nov 2023Endeavor Energy144,598144,722423,967414,220160$77.69$2.71
Oct 2023Endeavor Energy167,042167,119435,865425,8965,168$85.64$2.98
Sep 2023Endeavor Energy179,975179,945443,856437,792755$89.43$2.64
Aug 2023Endeavor Energy212,223212,303490,528484,865291$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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This lease belongs to

OperatorDiamondback E&P LLCFieldSpraberry (Trend Area)CountyMidland County

Diamondback E&P LLC in Midland County

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Spraberry (Trend Area) field

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