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Texas oil lease

Producing

RIO SAN JACINTO 38-43 UNIT 1

Rio San Jacinto 38-43 Unit 1 is an oil lease in Midland County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.

16 wells

656,510bbl oil, last 12 months−69% vs prior year
Operator
Diamondback E&P LLC
County
Midland County
Field
Spraberry (Trend Area)
RRC lease
08-61143

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Where it sits

This county

Midland CountyMidlandMartinAndrewsGlasscockHowardEctorMidland County
Midland County
Gas, last 12 months
3,832,958 mcf
Oil in Jul 2026
42,025 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 69% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 69% over the last 12 monthsMonthly oil production and gas for RIO SAN JACINTO 38-43 UNIT 1, Aug 2024 to Jul 2026. Oil output fell 69% over the last 12 months. 656,510 bbl in the 12 months through Jul 2026, against 2,119,675 bbl in the 12 months before.Last 12 months: 656,510 bblbbl per monthmcf per month00100k200k200k400k300k600k400k800kOct 24Jan 25AprJulOctJan 26AprJul
Oil output fell 69% over the last 12 monthsMonthly oil production and gas for RIO SAN JACINTO 38-43 UNIT 1, Aug 2024 to Jul 2026. Oil output fell 69% over the last 12 months. 656,510 bbl in the 12 months through Jul 2026, against 2,119,675 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month00100k200k200k400k300k600k400k800kJan 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 16.3% of the gas in Sep 2025.

  • Processing plant (3)
  • Transmission line (2)
  • Flared (4)
Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plantShare of RIO SAN JACINTO 38-43 UNIT 1 gas by disposition code each month, Aug 2024 to Jul 2026. Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plant. Flaring peaked at 16.3% of the gas in Sep 2025.Share of the lease’s gas by disposition code, per month0%50%100%Nov 2024: plant to lineFlared 16.3%Oct 24Jan 25AprJulOctJan 26AprJul
Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plantShare of RIO SAN JACINTO 38-43 UNIT 1 gas by disposition code each month, Aug 2024 to Jul 2026. Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plant. Flaring peaked at 16.3% of the gas in Sep 2025.Share of gas by disposition code0%50%100%Nov 24: plant to lineFlared 16.3%Jan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    98% · 3,737,358 mcf

  • Flared (4)

    2.5% · 95,600 mcf

2.5% of the gas flared in the last 12 months. 6 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., Aug 2024 to Dec 2024; Diamondback E&P LLC, Jan 2025 to Jul 202620252026Changed Jan 2025Endeavor Energy Resources L.P.Aug 2024 to Dec 2024Diamondback E&P LLCJan 2025 to now
Operators of this lease over timeEndeavor Energy Resources L.P., Aug 2024 to Dec 2024; Diamondback E&P LLC, Jan 2025 to Jul 202620252026Changed Jan 2025Endeavor Energy Resources L.P.Aug 2024 to Dec 2024Diamondback E&P LLCJan 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

16 wells on this lease

Wells on RIO SAN JACINTO 38-43 UNIT 1
API numberWell no.Status
42-329-46366111Active
42-329-46367112Active
42-329-46368113Active
42-329-46369214Active
42-329-46370121Active
42-329-46371123Active
42-329-46372224Active
42-329-46417141Active
42-329-46418243Active
42-329-46419244Active
42-329-46457122Active
42-329-46458234Active
42-329-46459131Active
42-329-46468132Active
42-329-46469133Active
42-329-46471142Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enlink Crude Marketing, LLCOilGathers100Aug 1, 2024–
Enterprise M B Midstream LLCCasinghead gasBuys100Aug 1, 2025–
Enterprise Products Operating LLCCasinghead gasGathers100Aug 1, 2025–
Ent Navitas Mdstrm Mdlnd Bas LLCCasinghead gasGathers100Aug 1, 2024Aug 1, 2025
Ent Navitas Mdstrm Mdlnd Bas LLCCasinghead gasBuys100Aug 1, 2024Aug 1, 2025

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

Who buys my oilOil price check

656.43 acres on the newest permit

  • Good to know

    The wells on this lease state different acreage

    The permits state between 656.43 and 1,314.07 acres. Use the acres from your own division order for the well you are paid on.

  • Good to know

    16 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.

Check your decimal on this lease
Permits for Rio San Jacinto 38-43 Unit 1
API numberWell no.Acreson the permit
42-329-46457122656.43
42-329-46459131656.43
42-329-46468132656.43
42-329-46469133656.43
42-329-46471142656.43
42-329-46458234656.44
42-329-464182431,314.07
42-329-46417141656.44
42-329-46419244656.44
42-329-46367112656.44
42-329-46368113656.44
42-329-46369214656.44

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

24 months, newest first

Ledger for RIO SAN JACINTO 38-43 UNIT 1
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Diamondback E&P42,02541,996287,686287,481205$80.46$2.89
Jun 2026Diamondback E&P36,50436,591258,142257,869273$84.81$3.15
May 2026Diamondback E&P37,32037,275287,274284,8852,389$102.13$2.94
Apr 2026Diamondback E&P43,70743,893311,405308,3123,093$100.32$2.77
Mar 2026Diamondback E&P53,36853,158333,229328,6614,568$91.38$3.04
Feb 2026Diamondback E&P48,44848,490301,597297,9623,635$64.51$3.62
Jan 2026Diamondback E&P52,32752,286253,113248,4264,687$60.04$7.72
Dec 2025Diamondback E&P59,34259,403339,802338,1951,607$57.97$4.26
Nov 2025Diamondback E&P61,17961,106372,081367,4324,649$60.06$3.79
Oct 2025Diamondback E&P62,94363,042405,475399,7815,694$60.89$3.19
Sep 2025Diamondback E&P76,51276,529331,010276,95654,054$63.96$2.97
Aug 2025Diamondback E&P82,83582,760352,144341,39810,746$64.86$2.91
Jul 2025Diamondback E&P90,86491,090393,628377,85715,771$68.39$3.20
Jun 2025Diamondback E&P97,33297,116349,075341,0118,064$68.17$3.02
May 2025Diamondback E&P101,023101,003341,137326,22114,916$62.17$3.12
Apr 2025Diamondback E&P116,786116,813408,870403,9294,941$63.54$3.42
Mar 2025Diamondback E&P148,206148,367461,831460,965866$68.24$4.12
Feb 2025Diamondback E&P163,852163,769452,618445,8296,789$71.53$4.19
Jan 2025Diamondback E&P205,444205,392505,073501,8953,178$75.74$4.13
Dec 2024Endeavor Energy256,472256,546522,560518,8803,680$70.12$3.01
Nov 2024Endeavor Energy286,382286,400478,560466,22712,333$69.95$2.12
Oct 2024Endeavor Energy268,740268,764390,919387,2943,625$71.99$2.20
Sep 2024Endeavor Energy268,814268,817274,577251,84922,728$70.24$2.28
Aug 2024Endeavor Energy115,760115,317118,036113,1544,882$76.68$1.99

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

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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