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Texas oil lease

Producing

ROCKER "B" -Z16-

Rocker "B" -Z16- is an oil lease in Reagan County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.

1 well

292bbl oil, last 12 months−63% vs prior year
Operator
Diamondback E&P LLC
County
Reagan County
Field
Spraberry (Trend Area)
RRC lease
7C-16397

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Where it sits

This county

Reagan CountyReaganIrionSterlingUptonMidlandGlasscockReagan County
Reagan County
Gas, last 12 months
3,599 mcf
Oil in Jul 2026
0 bbl

Checks stopped on this lease?

  • Operator

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

  • Sales

    No sales reported for the last 3 months of state data (through Jul 2026).

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 63% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 63% over the last 12 monthsMonthly oil production and gas for ROCKER "B" -Z16-, Aug 2023 to Jul 2026. Oil output fell 63% over the last 12 months. 292 bbl in the 12 months through Jul 2026, against 797 bbl in the 12 months before.Last 12 months: 292 bblbbl per monthmcf per month00200200400400600600800800Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 63% over the last 12 monthsMonthly oil production and gas for ROCKER "B" -Z16-, Aug 2023 to Jul 2026. Oil output fell 63% over the last 12 months. 292 bbl in the 12 months through Jul 2026, against 797 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month00200200400400600600800800Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Jan 2026 the lease's gas goes to lease fuel instead of a transmission line

  • Processing plant (3)
  • Transmission line (2)
  • Lease fuel (1)
Since Jan 2026 the lease's gas goes to lease fuel instead of a transmission lineShare of ROCKER "B" -Z16- gas by disposition code each month, Aug 2023 to Jul 2026. Since Jan 2026 the lease's gas goes to lease fuel instead of a transmission line.Share of the lease’s gas by disposition code, per month0%50%100%Jan 2026: line to fuelOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Jan 2026 the lease's gas goes to lease fuel instead of a transmission lineShare of ROCKER "B" -Z16- gas by disposition code each month, Aug 2023 to Jul 2026. Since Jan 2026 the lease's gas goes to lease fuel instead of a transmission line.Share of gas by disposition code0%50%100%Jan 26: line to fuelJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    60% · 2,568 mcf

  • Lease fuel (1)

    40% · 1,710 mcf

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 ROCKER "B" -Z16-
API numberWell no.Status
42-383-1075128Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCOilGathers100Apr 1, 2025–
Targa Pl Mid-Cont Westtex LLCCasinghead gasBuys100Nov 1, 2015–
Targa Pl Mid-Cont Westtex LLCCasinghead gasGathers100Oct 1, 2015–
Oasis Transp & Marketing Corp.OilGathers100May 1, 2010Apr 1, 2025

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

Who buys my oilOil price check

What the drilling permits say

  • Good to know

    The state has no unit acreage for this lease

    Ask the operator for the acreage on your well's division order and unit plat.

Check your decimal on this lease
Permits for Rocker "B" -Z16-
API numberWell no.Acreson the permit
42-383-1075128–

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 ROCKER "B" -Z16-
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Diamondback E&P0013000$80.46$2.89
Jun 2026Diamondback E&P9020000$84.81$3.15
May 2026Diamondback E&P0026000$102.13$2.94
Apr 2026Diamondback E&P0107000$100.32$2.77
Mar 2026Diamondback E&P00000$91.38$3.04
Feb 2026Diamondback E&P00000$64.51$3.62
Jan 2026Diamondback E&P1803571570$60.04$7.72
Dec 2025Diamondback E&P5706773670$57.97$4.26
Nov 2025Diamondback E&P631796563560$60.06$3.79
Oct 2025Diamondback E&P3406603500$60.89$3.19
Sep 2025Diamondback E&P5103463460$63.96$2.97
Aug 2025Diamondback E&P6003133130$64.86$2.91
Jul 2025Diamondback E&P311732972970$68.39$3.20
Jun 2025Diamondback E&P5002562560$68.17$3.02
May 2025Diamondback E&P6301261260$62.17$3.12
Apr 2025Diamondback E&P341741151150$63.54$3.42
Mar 2025Diamondback E&P4802202200$68.24$4.12
Feb 2025Diamondback E&P6201511510$71.53$4.19
Jan 2025Diamondback E&P682152032030$75.74$4.13
Dec 2024Endeavor Energy71050500$70.12$3.01
Nov 2024Endeavor Energy85010100$69.95$2.12
Oct 2024Endeavor Energy80185000$71.99$2.20
Sep 2024Endeavor Energy1300000$70.24$2.28
Aug 2024Endeavor Energy7517521210$76.68$1.99
Jul 2024Endeavor Energy102014140$81.80$2.07
Jun 2024Endeavor Energy7014959590$79.77$2.54
May 2024Endeavor Energy1201764054050$80.02$2.12
Apr 2024Endeavor Energy3501843433430$85.35$1.60
Mar 2024Endeavor Energy1691744964960$81.28$1.49
Feb 2024Endeavor Energy7157395345340$77.25$1.72
Jan 2024Endeavor Energy1501571570$74.15$3.18
Dec 2023Endeavor Energy71471761760$71.90$2.52
Nov 2023Endeavor Energy1702082080$77.69$2.71
Oct 2023Endeavor Energy1602402400$85.64$2.98
Sep 2023Endeavor Energy1202562560$89.43$2.64
Aug 2023Endeavor Energy1502922920$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)CountyReagan County

Diamondback E&P LLC in Reagan County

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Spraberry (Trend Area) field

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