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Texas oil lease

Producing

RIO SAN GABRIEL 28-29 UNIT 1

Rio San Gabriel 28-29 Unit 1 is an oil lease in Midland County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.

15 wells

317,849bbl oil, last 12 months−43% vs prior year
Operator
Diamondback E&P LLC
County
Midland County
Field
Spraberry (Trend Area)
RRC lease
08-51913

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Where it sits

This county

Midland CountyMidlandMartinAndrewsGlasscockHowardEctorMidland County
Midland County
Gas, last 12 months
2,898,635 mcf
Oil in Jul 2026
23,427 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: ENTERPRISE M B MIDSTREAM LLC replaced ENT NAVITAS MDSTRM MDLND BAS LLC as the buyer of this lease's gas from oil wells on Aug 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 43% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 43% over the last 12 monthsMonthly oil production and gas for RIO SAN GABRIEL 28-29 UNIT 1, Aug 2023 to Jul 2026. Oil output fell 43% over the last 12 months. 317,849 bbl in the 12 months through Jul 2026, against 560,000 bbl in the 12 months before.Last 12 months: 317,849 bblbbl per monthmcf per month0020k100k40k200k60k300k80k400kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 43% over the last 12 monthsMonthly oil production and gas for RIO SAN GABRIEL 28-29 UNIT 1, Aug 2023 to Jul 2026. Oil output fell 43% over the last 12 months. 317,849 bbl in the 12 months through Jul 2026, against 560,000 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0020k100k40k200k60k300k80k400kJan 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 25.5% of the gas in Oct 2024.

  • Processing plant (3)
  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plantShare of RIO SAN GABRIEL 28-29 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 25.5% of the gas in Oct 2024.Share of the lease’s gas by disposition code, per month0%50%100%Nov 2024: plant to lineFlared 25.5%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plantShare of RIO SAN GABRIEL 28-29 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 25.5% of the gas in Oct 2024.Share of gas by disposition code0%50%100%Nov 24: plant to lineFlared 25.5%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    98% · 2,828,354 mcf

  • Flared (4)

    1.3% · 37,142 mcf

  • Lease fuel (1)

    1.1% · 33,139 mcf

1.3% of the gas flared in the last 12 months. 5 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., 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.

15 wells on this lease

Wells on RIO SAN GABRIEL 28-29 UNIT 1
API numberWell no.Status
42-329-42499141Active
42-329-42500242Active
42-329-44832211Active
42-329-44833112Active
42-329-44834213Active
42-329-44835121Active
42-329-44836222Active
42-329-44837131Active
42-329-44838232Active
42-329-44839143Active
42-329-44840244Active
42-329-45146211RActive
42-329-46784123Active
42-329-46787133Active
42-329-46788145Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enlink Crude Marketing, LLCOilGathers100Mar 12, 2019–
Enterprise M B Midstream LLCCasinghead gasBuys100Aug 1, 2025–
Enterprise Products Operating LLCCasinghead gasGathers100Aug 1, 2025–
Ent Navitas Mdstrm Mdlnd Bas LLCCasinghead gasGathers100Jun 1, 2023Aug 1, 2025
Ent Navitas Mdstrm Mdlnd Bas LLCCasinghead gasBuys100Jun 1, 2023Aug 1, 2025
Navitas Mdstr Midland Basin, LLCCasinghead gasGathers100Mar 12, 2019Jun 1, 2023
Navitas Mdstr Midland Basin, LLCCasinghead gasBuys100Mar 12, 2019Jun 1, 2023

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

Who buys my oilOil price check

659.90 acres on the newest permit

  • Good to know

    15 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 San Gabriel 28-29 Unit 1
API numberWell no.Acreson the permit
42-329-46784123659.90
42-329-46787133659.90
42-329-46788145659.90
42-329-45146211R659.90
42-329-44832211659.90
42-329-44833112659.90
42-329-44834213659.90
42-329-44835121659.90
42-329-44836222659.90
42-329-44837131659.90
42-329-44838232659.90
42-329-44839143659.90

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 SAN GABRIEL 28-29 UNIT 1
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Diamondback E&P23,42723,448258,288256,683890$80.46$2.89
Jun 2026Diamondback E&P22,04922,037253,316239,08513,103$84.81$3.15
May 2026Diamondback E&P24,22324,193272,436269,3101,847$102.13$2.94
Apr 2026Diamondback E&P25,09025,159257,511251,9874,078$100.32$2.77
Mar 2026Diamondback E&P28,93128,908247,037243,0141,931$91.38$3.04
Feb 2026Diamondback E&P24,29224,342206,615202,5691,472$64.51$3.62
Jan 2026Diamondback E&P21,41321,430199,096194,4072,113$60.04$7.72
Dec 2025Diamondback E&P29,47729,498227,271224,270597$57.97$4.26
Nov 2025Diamondback E&P28,23028,198230,749227,661712$60.06$3.79
Oct 2025Diamondback E&P30,46230,495219,047215,646785$60.89$3.19
Sep 2025Diamondback E&P27,86227,786257,323246,8283,991$63.96$2.97
Aug 2025Diamondback E&P32,39332,454269,946256,8945,623$64.86$2.91
Jul 2025Diamondback E&P38,08838,030254,100240,6716,391$68.39$3.20
Jun 2025Diamondback E&P39,89339,878230,975219,9693,591$68.17$3.02
May 2025Diamondback E&P43,09643,114226,262218,571783$62.17$3.12
Apr 2025Diamondback E&P44,15744,201199,340191,946702$63.54$3.42
Mar 2025Diamondback E&P50,48150,408223,400210,8273,008$68.24$4.12
Feb 2025Diamondback E&P49,57949,653195,181179,2016,576$71.53$4.19
Jan 2025Diamondback E&P64,82964,734189,699180,2693,233$75.74$4.13
Dec 2024Endeavor Energy71,07971,356181,002166,9057,914$70.12$3.01
Nov 2024Endeavor Energy78,12978,159166,769155,5941,447$69.95$2.12
Oct 2024Endeavor Energy53,55653,48692,52763,75723,636$71.99$2.20
Sep 2024Endeavor Energy13,70913,64358,83452,525726$70.24$2.28
Aug 2024Endeavor Energy13,40413,31389,64483,590701$76.68$1.99
Jul 2024Endeavor Energy24,06724,064155,563149,099245$81.80$2.07
Jun 2024Endeavor Energy26,21626,213156,203147,2561,252$79.77$2.54
May 2024Endeavor Energy26,44926,412158,287149,854814$80.02$2.12
Apr 2024Endeavor Energy28,88428,934157,708148,903453$85.35$1.60
Mar 2024Endeavor Energy29,81829,858151,915143,680265$81.28$1.49
Feb 2024Endeavor Energy28,14328,263135,547127,4992,736$77.25$1.72
Jan 2024Endeavor Energy32,68432,611230,575222,0383,153$74.15$3.18
Dec 2023Endeavor Energy34,38034,401149,442145,4780$71.90$2.52
Nov 2023Endeavor Energy34,69434,668141,038136,9740$77.69$2.71
Oct 2023Endeavor Energy36,62036,624144,172140,2080$85.64$2.98
Sep 2023Endeavor Energy37,55537,561147,712144,2050$89.43$2.64
Aug 2023Endeavor Energy40,87840,799161,020152,1726,116$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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