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Texas oil lease

Producing

BLACKJACK 16-21 C

Blackjack 16-21 C is an oil lease in Martin County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.

1 well

111,023bbl oil, last 12 months
Operator
Diamondback E&P LLC
County
Martin County
Field
Spraberry (Trend Area)
RRC lease
08-60665

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Where it sits

This county

Martin CountyMartinGainesAndrewsHowardDawsonBordenMartin County
Martin County
Gas, last 12 months
135,643 mcf
Oil in Jul 2026
9,882 bbl

Checks stopped on this lease?

  • Operator

    Operator changed: Diamondback E&P LLC took over from Pbex Operations, LLC in May 2025.

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

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Production by month

Oil output over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output over the last 12 monthsMonthly oil production and gas for BLACKJACK 16-21 C, Aug 2023 to Jul 2026. Oil output over the last 12 months. 111,023 bbl in the 12 months through Jul 2026, against 0 bbl in the 12 months before.Last 12 months: 111,023 bblbbl per monthmcf per month005,0005,00010k10k15k15k20k20kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output over the last 12 monthsMonthly oil production and gas for BLACKJACK 16-21 C, Aug 2023 to Jul 2026. Oil output over the last 12 months. 111,023 bbl in the 12 months through Jul 2026, against 0 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month005,0005,00010k10k15k15k20k20kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

95% of the gas went to a transmission line in the 10 months reported

  • Transmission line (2)
  • Lease fuel (1)
95% of the gas went to a transmission line in the 10 months reportedShare of BLACKJACK 16-21 C gas by disposition code each month, Aug 2023 to Jul 2026. 95% of the gas went to a transmission line in the 10 months reported.Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
95% of the gas went to a transmission line in the 10 months reportedShare of BLACKJACK 16-21 C gas by disposition code each month, Aug 2023 to Jul 2026. 95% of the gas went to a transmission line in the 10 months reported.Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    95% · 129,535 mcf

  • Lease fuel (1)

    4.5% · 6,108 mcf

Who has run this lease

The operator changed 2 times, most recently in May 2025

Operators of this lease over timeDiamondback E&P LLC, Dec 2022 to Jun 2024; Pbex Operations, LLC, Jul 2024 to Apr 2025; Diamondback E&P LLC, May 2025 to Jul 20262023202420252026Changed Jul 2024Changed May 2025Diamondback E&P LLCDec 2022 to Jun 2024Pbex Operations, LLCJul 2024 to Apr 2025Diamondback E&P LLCMay 2025 to now
Operators of this lease over timeDiamondback E&P LLC, Dec 2022 to Jun 2024; Pbex Operations, LLC, Jul 2024 to Apr 2025; Diamondback E&P LLC, May 2025 to Jul 20262023202420252026Changed Jul 2024Changed May 2025Diamondback E&P LLCDec 2022 to Jun 2024Pbex Operations, LLCJul 2024 to Apr 2025Diamondback E&P LLCMay 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on BLACKJACK 16-21 C
API numberWell no.Status
42-317-44160101HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Energy Transfer CompanyOilGathers100Oct 1, 2025–
Targa Pl Mid-Cont Westtex LLCCasinghead gasBuys100Dec 31, 2022–
Targa Pl Mid-Cont Westtex LLCCasinghead gasGathers100Dec 31, 2022–
Nustar Permian Trans and Stg,llcOilGathers100Dec 31, 2022Oct 1, 2025

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

Who buys my oilOil price check

493.09 acres on the newest permit

  • Worth asking

    An allocation well is on this lease

    A well drilled across several tracts shares its production by an allocation formula, so the decimal is not always your acres over the unit acres. Ask the operator for the allocation formula and the tract factor for your land.

Check your decimal on this lease
Permits for Blackjack 16-21 C
API numberWell no.Acreson the permit
42-317-44160101H493.09
42-317-441605WA493.09

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 BLACKJACK 16-21 C
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Diamondback E&P9,8829,88519,10418,0920$80.46$2.89
Jun 2026Diamondback E&P9,1759,14613,38812,6980$84.81$3.15
May 2026Diamondback E&P10,46210,45115,66914,9750$102.13$2.94
Apr 2026Diamondback E&P9,0659,08414,01713,5490$100.32$2.77
Mar 2026Diamondback E&P9,9119,88615,05914,4670$91.38$3.04
Feb 2026Diamondback E&P10,36710,40313,18512,5610$64.51$3.62
Jan 2026Diamondback E&P12,89212,87215,29314,6490$60.04$7.72
Dec 2025Diamondback E&P12,14412,1238,9648,5250$57.97$4.26
Nov 2025Diamondback E&P16,52016,52812,37911,7610$60.06$3.79
Oct 2025Diamondback E&P10,60510,5658,5858,2580$60.89$3.19
Sep 2025Diamondback E&P00000$63.96$2.97
Aug 2025Diamondback E&P00000$64.86$2.91
Jul 2025Diamondback E&P00000$68.39$3.20
Jun 2025Diamondback E&P00000$68.17$3.02
May 2025Diamondback E&P00000$62.17$3.12
Apr 2025Pbex Operations,00000$63.54$3.42
Mar 2025Pbex Operations,00000$68.24$4.12
Feb 2025Pbex Operations,00000$71.53$4.19
Jan 2025Pbex Operations,00000$75.74$4.13
Dec 2024Pbex Operations,00000$70.12$3.01
Nov 2024Pbex Operations,00000$69.95$2.12
Oct 2024Pbex Operations,00000$71.99$2.20
Sep 2024Pbex Operations,00000$70.24$2.28
Aug 2024Pbex Operations,00000$76.68$1.99
Jul 2024Pbex Operations,00000$81.80$2.07
Jun 2024Diamondback E&P00000$79.77$2.54
May 2024Diamondback E&P00000$80.02$2.12
Apr 2024Diamondback E&P00000$85.35$1.60
Mar 2024Diamondback E&P00000$81.28$1.49
Feb 2024Diamondback E&P00000$77.25$1.72
Jan 2024Diamondback E&P00000$74.15$3.18
Dec 2023Diamondback E&P00000$71.90$2.52
Nov 2023Diamondback E&P00000$77.69$2.71
Oct 2023Diamondback E&P00000$85.64$2.98
Sep 2023Diamondback E&P00000$89.43$2.64
Aug 2023Diamondback E&P00000$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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