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Texas oil lease

Producing

HALSEY

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

1 well

53,723bbl oil, last 12 months−13% vs prior year
Operator
Diamondback E&P LLC
County
Martin County
Field
Spraberry (Trend Area)
RRC lease
08-57914

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Where it sits

This county

Martin CountyMartinGainesAndrewsHowardDawsonBordenMartin County
Martin County
Gas, last 12 months
193,794 mcf
Oil in Jul 2026
3,564 bbl

Production by month

Oil output fell 13% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 13% over the last 12 monthsMonthly oil production and gas for HALSEY, Aug 2023 to Jul 2026. Oil output fell 13% over the last 12 months. 53,723 bbl in the 12 months through Jul 2026, against 61,862 bbl in the 12 months before.Last 12 months: 53,723 bblbbl per monthmcf per month002,50010k5,00020k7,50030k10k40k12.5k50kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 13% over the last 12 monthsMonthly oil production and gas for HALSEY, Aug 2023 to Jul 2026. Oil output fell 13% over the last 12 months. 53,723 bbl in the 12 months through Jul 2026, against 61,862 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month002,50010k5,00020k7,50030k10k40k12.5k50kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

99% of the gas went to a transmission line in the last 12 months

Flaring peaked at 19.3% of the gas in Aug 2025.

  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
99% of the gas went to a transmission line in the last 12 monthsShare of HALSEY gas by disposition code each month, Aug 2023 to Jul 2026. 99% of the gas went to a transmission line in the last 12 months. Flaring peaked at 19.3% of the gas in Aug 2025.Share of the lease’s gas by disposition code, per month0%50%100%Flared 19.3%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
99% of the gas went to a transmission line in the last 12 monthsShare of HALSEY gas by disposition code each month, Aug 2023 to Jul 2026. 99% of the gas went to a transmission line in the last 12 months. Flaring peaked at 19.3% of the gas in Aug 2025.Share of gas by disposition code0%50%100%Flared 19.3%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    99% · 191,478 mcf

  • Flared (4)

    1.2% · 2,316 mcf

1.2% 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 Mar 2023

Operators of this lease over timeLario Oil & Gas Company, Nov 2020 to Feb 2023; Diamondback E&P LLC, Mar 2023 to Jul 2026202120222023202420252026Changed Mar 2023Lario Oil & Gas CompanyNov 2020 to Feb 2023Diamondback E&P LLCMar 2023 to now
Operators of this lease over timeLario Oil & Gas Company, Nov 2020 to Feb 2023; Diamondback E&P LLC, Mar 2023 to Jul 2026202120222023202420252026Changed Mar 2023Lario Oil & Gas CompanyNov 2020 to Feb 2023Diamondback E&P LLCMar 2023 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on HALSEY
API numberWell no.Status
42-317-42984105Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Energy Transfer CompanyOilGathers100Feb 1, 2025–
Etc North Permian Midstream LLCCasinghead gasBuys100Aug 1, 2024–
Energy Transfer CompanyCasinghead gasGathers100Aug 1, 2024–
Nustar Permian Trans and Stg,llcOilGathers100Nov 1, 2020Feb 1, 2025
Wtg North Permian Midstream LLCCasinghead gasGathers100Nov 1, 2020Aug 1, 2024
Wtg North Permian Midstream LLCCasinghead gasBuys100Nov 1, 2020Aug 1, 2024

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

Who buys my oilOil price check

884.01 acres on the newest permit

An allocation well is on this lease

Permits for Halsey
API numberWell no.Acreson the permit
42-317-40722101WB884.01
42-317-42984105884.01

SourceRailroad Commission drilling permits, Sep 26, 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 HALSEY
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Diamondback E&P3,5643,54121,55421,5540$80.46$2.89
Jun 2026Diamondback E&P3,3773,39420,41720,4170$84.81$3.15
May 2026Diamondback E&P4,4354,44820,86520,8650$102.13$2.94
Apr 2026Diamondback E&P4,7674,77424,03124,0310$100.32$2.77
Mar 2026Diamondback E&P4,8304,84421,13121,1310$91.38$3.04
Feb 2026Diamondback E&P4,5304,56216,13516,1350$64.51$3.62
Jan 2026Diamondback E&P5,5455,49813,95113,9501$60.04$7.72
Dec 2025Diamondback E&P5,5415,52911,63311,6312$57.97$4.26
Nov 2025Diamondback E&P4,8954,90111,23911,16178$60.06$3.79
Oct 2025Diamondback E&P4,7605,0039,9979,90592$60.89$3.19
Sep 2025Diamondback E&P5,1954,95012,88312,663220$63.96$2.97
Aug 2025Diamondback E&P2,2842,2199,9588,0351,923$64.86$2.91
Jul 2025Diamondback E&P227928524120$68.39$3.20
Jun 2025Diamondback E&P5,2645,35020,64918,845903$68.17$3.02
May 2025Diamondback E&P6,0105,93514,33813,115515$62.17$3.12
Apr 2025Diamondback E&P4,3164,35613,03412,197177$63.54$3.42
Mar 2025Diamondback E&P5,5605,55616,73315,8930$68.24$4.12
Feb 2025Diamondback E&P5,1985,19216,49915,7800$71.53$4.19
Jan 2025Diamondback E&P5,4945,41815,98515,1490$75.74$4.13
Dec 2024Diamondback E&P4,6934,71811,98711,2970$70.12$3.01
Nov 2024Diamondback E&P5,5135,49813,88013,2620$69.95$2.12
Oct 2024Diamondback E&P6,0376,04215,96315,4490$71.99$2.20
Sep 2024Diamondback E&P6,5006,51615,28314,8560$70.24$2.28
Aug 2024Diamondback E&P7,2557,24016,68516,2410$76.68$1.99
Jul 2024Diamondback E&P4,9334,92211,78211,5900$81.80$2.07
Jun 2024Diamondback E&P5,8415,85715,71515,360355$79.77$2.54
May 2024Diamondback E&P7,1127,11315,53315,1780$80.02$2.12
Apr 2024Diamondback E&P7,9698,05717,57616,9760$85.35$1.60
Mar 2024Diamondback E&P8,4598,41718,45617,8333$81.28$1.49
Feb 2024Diamondback E&P8,6008,62919,39018,73476$77.25$1.72
Jan 2024Diamondback E&P9,2399,20123,34121,0091,712$74.15$3.18
Dec 2023Diamondback E&P9,7479,82623,28322,360303$71.90$2.52
Nov 2023Diamondback E&P10,77810,67125,42224,532290$77.69$2.71
Oct 2023Diamondback E&P8,5778,68623,00122,1810$85.64$2.98
Sep 2023Diamondback E&P10,47510,43523,04322,1930$89.43$2.64
Aug 2023Diamondback E&P11,70411,66120,16418,496738$81.39$2.58

Flared above 3%

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Sep 28, 2026.

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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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