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Producing

WILLIS 44-41 B

Willis 44-41 B is an oil lease in Midland County, Texas, operated by Diamondback E&P LLC in the Spraberry (Trend Area) field.

1 well

77,206bbl oil, last 12 months
RRC lease
08-61468

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Where it sits

This county

Midland CountyMidlandMartinAndrewsGlasscockHowardEctorMidland County
Midland County
Gas, last 12 months
218,960 mcf
Oil in Jul 2026
4,999 bbl

Checks stopped on this lease?

  • Operator

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

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

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Production by month

Oil output fell 79% since Sep 2024

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 79% since Sep 2024Monthly oil production and gas for WILLIS 44-41 B, Sep 2024 to Jul 2026. Oil output fell 79% since Sep 2024. Monthly average of 5,098 bbl in the latest 3 months, against 23,828 bbl in the first 3.Last 12 months: 77,206 bblbbl per monthmcf per month0010k10k20k20k30k30k40k40k50k50kOct 24Jan 25AprJulOctJan 26AprJul
Oil output fell 79% since Sep 2024Monthly oil production and gas for WILLIS 44-41 B, Sep 2024 to Jul 2026. Oil output fell 79% since Sep 2024. Monthly average of 5,098 bbl in the latest 3 months, against 23,828 bbl in the first 3.Last 12 monthsbbl per monthmcf per month0010k10k20k20k30k30k40k40k50k50kJan 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 14.0% of the gas in Sep 2024.

  • Processing plant (3)
  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plantShare of WILLIS 44-41 B gas by disposition code each month, Sep 2024 to Jul 2026. Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plant. Flaring peaked at 14.0% of the gas in Sep 2024.Share of the lease’s gas by disposition code, per month0%50%100%Nov 2024: plant to lineFlared 14.0%Oct 24Jan 25AprJulOctJan 26AprJul
Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plantShare of WILLIS 44-41 B gas by disposition code each month, Sep 2024 to Jul 2026. Since Nov 2024 the lease's gas goes to a transmission line instead of a processing plant. Flaring peaked at 14.0% of the gas in Sep 2024.Share of gas by disposition code0%50%100%Nov 24: plant to lineFlared 14.0%Jan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    89% · 195,263 mcf

  • Lease fuel (1)

    7.1% · 15,504 mcf

  • Flared (4)

    3.7% · 8,193 mcf

3.7% of the gas flared in the last 12 months. 8 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., Sep 2024 to Dec 2024; Diamondback E&P LLC, Jan 2025 to Jul 202620252026Changed Jan 2025Endeavor Energy Resources L.P.Sep 2024 to Dec 2024Diamondback E&P LLCJan 2025 to now
Operators of this lease over timeEndeavor Energy Resources L.P., Sep 2024 to Dec 2024; Diamondback E&P LLC, Jan 2025 to Jul 202620252026Changed Jan 2025Endeavor Energy Resources L.P.Sep 2024 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 WILLIS 44-41 B
API numberWell no.Status
42-329-46766221Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%From
Shell Trading (Us) CompanyOilGathers100Apr 1, 2025
Enterprise M B Midstream LLCCasinghead gasBuys100Apr 1, 2025
Enterprise Products Operating LLCCasinghead gasGathers100Apr 1, 2025

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

486.67 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.

  • Worth asking

    A Rule 37 case is listed

    The RRC permit records list a Rule 37 case. This does not establish your royalty share. Ask for the permit and unit plat for your well.

Check your decimal on this lease
Permits for Willis 44-41 B
API numberWell no.Acreson the permit
42-329-46766221486.67

SourceRailroad Commission drilling permits, Oct 3, 2026 (source 1, source 2).

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

23 months, newest first

Ledger for WILLIS 44-41 B
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Diamondback E&P4,9994,98015,04413,4060$80.46$2.89
Jun 2026Diamondback E&P4,8694,87714,73513,3634$84.81$3.15
May 2026Diamondback E&P5,4275,47518,73417,29677$102.13$2.94
Apr 2026Diamondback E&P5,5935,54716,57613,4791,906$100.32$2.77
Mar 2026Diamondback E&P5,7115,80318,16315,0411,830$91.38$3.04
Feb 2026Diamondback E&P6,5256,53615,96713,1841,673$64.51$3.62
Jan 2026Diamondback E&P6,2636,20317,57715,367954$60.04$7.72
Dec 2025Diamondback E&P7,2527,25920,38418,821229$57.97$4.26
Nov 2025Diamondback E&P6,3886,39814,22113,15336$60.06$3.79
Oct 2025Diamondback E&P7,6107,63322,54321,14754$60.89$3.19
Sep 2025Diamondback E&P8,1518,17224,58722,507707$63.96$2.97
Aug 2025Diamondback E&P8,4188,36120,42918,499723$64.86$2.91
Jul 2025Diamondback E&P8,4708,43714,48413,154311$68.39$3.20
Jun 2025Diamondback E&P8,5408,56815,27713,897317$68.17$3.02
May 2025Diamondback E&P10,37410,37920,58619,108233$62.17$3.12
Apr 2025Diamondback E&P11,47811,45323,89722,63516$63.54$3.42
Mar 2025Diamondback E&P13,14113,20525,40321,6862,429$68.24$4.12
Feb 2025Diamondback E&P13,33513,29523,43420,5041,821$71.53$4.19
Jan 2025Diamondback E&P16,75816,82728,65927,035326$75.74$4.13
Dec 2024Endeavor Energy19,82419,77432,72931,377396$70.12$3.01
Nov 2024Endeavor Energy23,00622,99235,68734,983573$69.95$2.12
Oct 2024Endeavor Energy28,25628,23441,87341,81657$71.99$2.20
Sep 2024Endeavor Energy20,22120,09229,46025,3314,129$70.24$2.28

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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Diamondback E&P LLC in Midland County

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