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Texas oil lease

Producing

O'BRIEN, G. W. ETAL

O'Brien, G. W. ETAL is an oil lease in Ward County, Texas, operated by Sundown Energy LP in the Wagon Wheel (Penn) field.

37 wells

208,231bbl oil, last 12 months−15% vs prior year
RRC lease
08-26670

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Where it sits

This county

Ward CountyWardWinklerCraneLovingReevesEctorWard County
Ward County
Gas, last 12 months
440,492 mcf
Oil in Jun 2026
18,992 bbl

Production by month

Oil output fell 15% over the last 12 months

Jul 2026 was not reported.

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 15% over the last 12 monthsMonthly oil production and gas for O'BRIEN, G. W. ETAL, Aug 2023 to Jul 2026. Oil output fell 15% over the last 12 months. 191,394 bbl in the 12 months through Jul 2026, against 225,994 bbl in the 12 months before.Last 12 months: 191,394 bblbbl per monthmcf per month0010k25k20k50k30k75k40k100kOct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 15% over the last 12 monthsMonthly oil production and gas for O'BRIEN, G. W. ETAL, Aug 2023 to Jul 2026. Oil output fell 15% over the last 12 months. 191,394 bbl in the 12 months through Jul 2026, against 225,994 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0010k25k20k50k30k75k40k100kJan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

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

All of the gas went to a transmission line in the last 12 monthsShare of O'BRIEN, G. W. ETAL gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line in the last 12 months.Share of the lease’s gas by disposition code, per month0%50%100%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
All of the gas went to a transmission line in the last 12 monthsShare of O'BRIEN, G. W. ETAL gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a transmission line in the last 12 months.Share of gas by disposition code0%50%100%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Who has run this lease

The operator changed once, most recently in May 2021

Operators of this lease over timeFour Corners Petroleum II, LLC, Jan 2020 to Apr 2021; Sundown Energy LP, May 2021 to Jun 20262020202120222023202420252026Changed May 2021Four Corners Petroleum II, LLCJan 2020 to Apr 2021Sundown Energy LPMay 2021 to now
Operators of this lease over timeFour Corners Petroleum II, LLC, Jan 2020 to Apr 2021; Sundown Energy LP, May 2021 to Jun 20262020202120222023202420252026Changed May 2021Four Corners Petroleum II, LLCJan 2020 to Apr 2021Sundown Energy LPMay 2021 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

37 wells on this lease

Wells on O'BRIEN, G. W. ETAL
API numberWell no.Status
42-475-323441220Active
42-475-323681223Active
42-475-326231227Active
42-475-348631600Active
42-475-372192000Active
42-475-372202001Active
42-475-372232007Active
42-475-372242002Active
42-475-373832022Active
42-475-373852018Active
42-475-373862021Active
42-475-374322026Active
42-475-374332027Active
42-475-374342029Active
42-475-374522023Active
42-475-374532024Shut-in
42-475-374642025Active
42-475-374862020Shut-in
42-475-375002021RActive
42-475-375842014Active
42-475-375972013Active
42-475-375992038Active
42-475-376302043Active
42-475-376392034Active
42-475-376402035Shut-in
42-475-376442039Active
42-475-376652019Active
42-475-376662036Shut-in
42-475-377292044Active
42-475-377312037Active
42-475-377592008Active
42-475-377602009Shut-in
42-475-377622048Active
42-475-378452010Active
42-475-378462011Active
42-475-378472054Active
42-495-339542017Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Gibson Energy Marketing, LLCOilGathers40Feb 11, 2025–
Trimac Transportation Inc.OilGathers35Feb 11, 2025–
Explore Logistics LLCOilGathers25Feb 11, 2025–
Targa Midstream Services LLCCasinghead gasBuys100Mar 1, 2022–
Targa Midstream Services LLCCasinghead gasGathers100Nov 1, 2018–
Gibson Energy Marketing, LLCOilGathers100Feb 1, 2025Feb 11, 2025
Axis Energy Marketing, LLCOilGathers50Apr 1, 2023Feb 1, 2025
Gibson Energy Marketing, LLCOilGathers50Mar 1, 2022Feb 1, 2025
Rio Energy International, Inc.OilGathers50Mar 1, 2022Apr 1, 2023
Targa Midstream Services LLCCasinghead gasBuys100Nov 1, 2018Mar 1, 2022
Gibson Energy Marketing, LLCOilGathers100Oct 1, 2018Mar 1, 2022

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

22,400 acres on the newest permit

  • Good to know

    40 wells are listed on this lease

    Each well can have its own unit. The decimal for one well does not have to equal the decimal for another.

  • 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 O'Brien, G. W. ETAL
API numberWell no.Acreson the permit
42-475-37845201022,400
42-475-37846201122,400
42-475-37847205422,400
42-475-37759200822,400
42-475-37760200922,400
42-475-37762204822,400
42-475-37729204422,400
42-475-37731203722,400
42-475-37665201922,400
42-475-37666203622,400
42-475-37639203422,400
42-475-37640203522,400

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

Estimate your royalty

36 months, newest first

Ledger for O'BRIEN, G. W. ETAL
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026No report–––––$80.46$2.89
Jun 2026Sundown Energy18,99219,149000$84.81$3.15
May 2026Sundown Energy20,98220,706000$102.13$2.94
Apr 2026Sundown Energy16,38716,43649,85749,8570$100.32$2.77
Mar 2026Sundown Energy17,24517,52154,96154,9610$91.38$3.04
Feb 2026Sundown Energy14,61814,35846,01046,0100$64.51$3.62
Jan 2026Sundown Energy14,64914,63346,90846,9080$60.04$7.72
Dec 2025Sundown Energy17,31517,25550,89850,8980$57.97$4.26
Nov 2025Sundown Energy18,23318,14153,31653,3160$60.06$3.79
Oct 2025Sundown Energy19,35519,317000$60.89$3.19
Sep 2025Sundown Energy17,00117,21837,87537,8750$63.96$2.97
Aug 2025Sundown Energy16,61716,55250,50750,5070$64.86$2.91
Jul 2025Sundown Energy16,83716,73550,16050,1600$68.39$3.20
Jun 2025Sundown Energy16,27716,20150,88150,8810$68.17$3.02
May 2025Sundown Energy17,06317,19853,11753,1170$62.17$3.12
Apr 2025Sundown Energy18,20718,18052,15652,1560$63.54$3.42
Mar 2025Sundown Energy18,43918,46156,72156,7210$68.24$4.12
Feb 2025Sundown Energy17,45117,45151,05251,0520$71.53$4.19
Jan 2025Sundown Energy20,40920,62654,02754,0270$75.74$4.13
Dec 2024Sundown Energy20,76020,59258,08658,0860$70.12$3.01
Nov 2024Sundown Energy20,51020,51055,69455,6940$69.95$2.12
Oct 2024Sundown Energy19,21819,10555,39155,3910$71.99$2.20
Sep 2024Sundown Energy19,52519,39657,06957,0690$70.24$2.28
Aug 2024Sundown Energy21,29821,19162,56662,5660$76.68$1.99
Jul 2024Sundown Energy23,72724,04262,67062,6700$81.80$2.07
Jun 2024Sundown Energy22,37522,54955,04155,0410$79.77$2.54
May 2024Sundown Energy22,64222,29656,54856,5480$80.02$2.12
Apr 2024Sundown Energy22,31022,61457,88857,8880$85.35$1.60
Mar 2024Sundown Energy23,06122,84354,66754,6670$81.28$1.49
Feb 2024Sundown Energy23,00223,00259,53459,5340$77.25$1.72
Jan 2024Sundown Energy26,32526,32565,38565,3850$74.15$3.18
Dec 2023Sundown Energy25,22825,22865,62665,6260$71.90$2.52
Nov 2023Sundown Energy24,64524,64564,59764,5970$77.69$2.71
Oct 2023Sundown Energy27,67626,95671,52371,5230$85.64$2.98
Sep 2023Sundown Energy25,85025,85073,55873,5580$89.43$2.64
Aug 2023Sundown Energy29,36029,36082,41182,4110$81.39$2.58

No report filed

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Oct 2, 2026.

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