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Texas oil lease

Producing

BOSS EAST O 40-45

Boss East O 40-45 is an oil lease in Upton County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.

2 wells

101,296bbl oil, last 12 months
Operator
Diamondback E&P LLC
County
Upton County
Field
Spraberry (Trend Area)
RRC lease
7C-22755

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Where it sits

This county

Upton CountyUptonMidlandCraneGlasscockReaganEctorUpton County
Upton County
Gas, last 12 months
471,987 mcf
Oil in Jul 2026
5,824 bbl

Checks stopped on this lease?

  • Operator

    Operator changed: Diamondback E&P LLC took over from De IV Operating, LLC in May 2025.

  • P-5

    The previous operator's P-5 registration is listed as inactive since Jan 29, 2026 (last P-5 filed Jan 7, 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 82% since Nov 2024

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 82% since Nov 2024Monthly oil production and gas for BOSS EAST O 40-45, Nov 2024 to Jul 2026. Oil output fell 82% since Nov 2024. Monthly average of 5,759 bbl in the latest 3 months, against 32,712 bbl in the first 3.Last 12 months: 101,296 bblbbl per monthmcf per month0010k20k20k40k30k60k40k80k50k100kJan 25AprJulOctJan 26AprJul
Oil output fell 82% since Nov 2024Monthly oil production and gas for BOSS EAST O 40-45, Nov 2024 to Jul 2026. Oil output fell 82% since Nov 2024. Monthly average of 5,759 bbl in the latest 3 months, against 32,712 bbl in the first 3.Last 12 monthsbbl per monthmcf per month0010k20k20k40k30k60k40k80k50k100kJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since May 2025 the lease's gas goes to a transmission line instead of a processing plant

  • Processing plant (3)
  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
Since May 2025 the lease's gas goes to a transmission line instead of a processing plantShare of BOSS EAST O 40-45 gas by disposition code each month, Nov 2024 to Jul 2026. Since May 2025 the lease's gas goes to a transmission line instead of a processing plant.Share of the lease’s gas by disposition code, per month0%50%100%May 2025: plant to lineJan 25AprJulOctJan 26AprJul
Since May 2025 the lease's gas goes to a transmission line instead of a processing plantShare of BOSS EAST O 40-45 gas by disposition code each month, Nov 2024 to Jul 2026. Since May 2025 the lease's gas goes to a transmission line instead of a processing plant.Share of gas by disposition code0%50%100%May 25: plant to lineJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    94% · 445,305 mcf

  • Lease fuel (1)

    5.3% · 24,988 mcf

  • Flared (4)

    0.4% · 1,694 mcf

0.4% of the gas flared in the last 12 months. No month above 3%.

Who has run this lease

The operator changed once, most recently in May 2025

Operators of this lease over timeDe IV Operating, LLC, Nov 2024 to Apr 2025; Diamondback E&P LLC, May 2025 to Jul 202620252026Changed May 2025De IV Operating, LLCNov 2024 to Apr 2025Diamondback E&P LLCMay 2025 to now
Operators of this lease over timeDe IV Operating, LLC, Nov 2024 to Apr 2025; Diamondback E&P LLC, May 2025 to Jul 202620252026Changed May 2025De IV Operating, LLCNov 2024 to Apr 2025Diamondback E&P LLCMay 2025 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

2 wells on this lease

Wells on BOSS EAST O 40-45
API numberWell no.Status
42-461-427994415HActive
42-461-428002615HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Medallion Operating Company, LLCOilGathers100Oct 1, 2024
Targa Pl Mid-Cont Westtex LLCCasinghead gasBuys100Oct 1, 2024
Targa Pl Mid-Cont Westtex LLCCasinghead gasGathers100Oct 1, 2024

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

Who buys my oilOil price check

487.38 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 Boss East O 40-45
API numberWell no.Acreson the permit
42-461-427994415H487.38
42-461-428002615H487.38

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

21 months, newest first

Ledger for BOSS EAST O 40-45
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Diamondback E&P5,8245,80827,54225,593331$80.46$2.89
Jun 2026Diamondback E&P5,8405,86129,62927,468374$84.81$3.15
May 2026Diamondback E&P5,6125,64427,95325,778357$102.13$2.94
Apr 2026Diamondback E&P5,8245,80233,93431,362405$100.32$2.77
Mar 2026Diamondback E&P5,6075,62428,97526,821227$91.38$3.04
Feb 2026Diamondback E&P6,6386,60738,95136,1530$64.51$3.62
Jan 2026Diamondback E&P7,6977,72145,88643,4840$60.04$7.72
Dec 2025Diamondback E&P9,5929,58948,60446,1150$57.97$4.26
Nov 2025Diamondback E&P10,48710,50152,65949,9880$60.06$3.79
Oct 2025Diamondback E&P11,90311,88341,86739,4100$60.89$3.19
Sep 2025Diamondback E&P12,08112,08343,80242,4090$63.96$2.97
Aug 2025Diamondback E&P14,19114,19252,18550,7240$64.86$2.91
Jul 2025Diamondback E&P15,24615,22552,88451,6081$68.39$3.20
Jun 2025Diamondback E&P15,91415,93548,85947,53575$68.17$3.02
May 2025Diamondback E&P19,71219,73348,34347,06917$62.17$3.12
Apr 2025De IV21,24221,25149,32849,3280$63.54$3.42
Mar 2025De IV27,47627,49749,43549,4350$68.24$4.12
Feb 2025De IV29,09829,10841,83941,8390$71.53$4.19
Jan 2025De IV38,43938,42939,81239,8111$75.74$4.13
Dec 2024De IV41,57941,50239,76839,7671$70.12$3.01
Nov 2024De IV18,11818,04117,49317,342151$69.95$2.12

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)CountyUpton County

Diamondback E&P LLC in Upton County

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Spraberry (Trend Area) field

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