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UL ELK PARK 21-21

Ul Elk Park 21-21 is an oil lease in Winkler County, Texas, operated by WPX Energy Permian, LLC in the Phantom (Wolfcamp) field.

1 well

47bbl oil, last 12 months−96% vs prior year
RRC lease
08-48860

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Where it sits

This county

Winkler CountyWinklerAndrewsWardLovingEctorWinkler County
Winkler County
Gas, last 12 months
22 mcf
Oil in Jul 2026
0 bbl

Checks stopped on this lease?

  • Buyer

    Buyer changed: CARDINAL DELAWARE BASIN, LLC, DELAWARE BASIN MIDSTREAM LLC, ETC TEXAS P/L, LTD and 2 more replaced TARGA DELAWARE LLC as the buyer of this lease's gas from oil wells on Jul 21, 2025.

  • Sales

    No sales reported for the last 10 months of state data (through Jul 2026).

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

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Production by month

Oil output fell 96% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 96% over the last 12 monthsMonthly oil production and gas for UL ELK PARK 21-21, Aug 2023 to Jul 2026. Oil output fell 96% over the last 12 months. 47 bbl in the 12 months through Jul 2026, against 1,231 bbl in the 12 months before.Last 12 months: 47 bblbbl per monthmcf per month0020050400100600150800200Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 96% over the last 12 monthsMonthly oil production and gas for UL ELK PARK 21-21, Aug 2023 to Jul 2026. Oil output fell 96% over the last 12 months. 47 bbl in the 12 months through Jul 2026, against 1,231 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month0020050400100600150800200Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

All of the gas went to a processing plant in the 7 months reported

All of the gas went to a processing plant in the 7 months reportedShare of UL ELK PARK 21-21 gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a processing plant in the 7 months reported.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 processing plant in the 7 months reportedShare of UL ELK PARK 21-21 gas by disposition code each month, Aug 2023 to Jul 2026. All of the gas went to a processing plant in the 7 months reported.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 2020

Operators of this lease over timeFelix Energy Holdings II, LLC, Jan 2020 to Apr 2020; WPX Energy Permian, LLC, May 2020 to Jul 20262020202120222023202420252026Changed May 2020Felix Energy Holdings II, LLCJan 2020 to Apr 2020WPX Energy Permian, LLCMay 2020 to now
Operators of this lease over timeFelix Energy Holdings II, LLC, Jan 2020 to Apr 2020; WPX Energy Permian, LLC, May 2020 to Jul 20262020202120222023202420252026Changed May 2020Felix Energy Holdings II, LLCJan 2020 to Apr 2020WPX Energy Permian, LLCMay 2020 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on UL ELK PARK 21-21
API numberWell no.Status
42-495-337701HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Stateline Crude, LLCOilGathers60Jul 21, 2025–
Concord Crude Oil Marketing LLCOilGathers10Jul 21, 2025–
Ngl Crude Assets and Mktg, LLCOilGathers10Jul 21, 2025–
Plains Pipeline L.p.OilGathers10Jul 21, 2025–
Enterprise Crude Oil LLCOilGathers5Jul 21, 2025–
Shell Trading (Us) CompanyOilGathers5Jul 21, 2025–
Stateline Processing, LLCCasinghead gasBuys80Jul 21, 2025–
Cardinal Delaware Basin, LLCCasinghead gasBuys5Jul 21, 2025–
Delaware Basin Midstream LLCCasinghead gasBuys5Jul 21, 2025–
Etc Texas P/L, LTDCasinghead gasBuys5Jul 21, 2025–
Markwest Energy W TX Gas Co, LLCCasinghead gasBuys5Jul 21, 2025–
Stateline Gathering, LLCCasinghead gasGathers100Jul 21, 2025–
Targa Delaware LLCCasinghead gasGathers100Mar 9, 2017Jul 21, 2025
Targa Delaware LLCCasinghead gasBuys100Mar 9, 2017Jul 21, 2025
Plains Marketing, L.p.OilGathers5Feb 1, 2020Jul 21, 2025
Plains Pipeline L.p.OilGathers90Feb 1, 2020Jul 21, 2025
Rocky Mountain Crude Oil LLCOilGathers5Feb 1, 2020Jul 21, 2025
Concord Crude Oil Marketing LLCOilGathers2Feb 1, 2019Feb 1, 2020

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

640 acres on the newest permit

Permits for Ul Elk Park 21-21
API numberWell no.Acreson the permit
42-495-337701H640

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

What Devon Energy Corporation told investors it received

WPX Energy Permian, LLC is linked to Devon Energy Corporation (DVN).
Realized prices reported by Devon Energy Corporation
QuarterOil$ per bblFiling
Q2 2026$95.10SEC filing
Q1 2026$69.66SEC filing
Q4 2025$57.19SEC filing
Q3 2025$63.21SEC filing
Q2 2025$61.70SEC filing
Q1 2025$69.13SEC filing

SourceDevon Energy Corporation quarterly reports, SEC EDGAR, company-wide averages before hedging.

Estimate your royalty

36 months, newest first

Ledger for UL ELK PARK 21-21
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026WPX Energy00000$80.46$2.89
Jun 2026WPX Energy00000$84.81$3.15
May 2026WPX Energy00000$102.13$2.94
Apr 2026WPX Energy00000$100.32$2.77
Mar 2026WPX Energy00000$91.38$3.04
Feb 2026WPX Energy00000$64.51$3.62
Jan 2026WPX Energy00000$60.04$7.72
Dec 2025WPX Energy00000$57.97$4.26
Nov 2025WPX Energy00000$60.06$3.79
Oct 2025WPX Energy00000$60.89$3.19
Sep 2025WPX Energy44297000$63.96$2.97
Aug 2025WPX Energy3322220$64.86$2.91
Jul 2025WPX Energy00000$68.39$3.20
Jun 2025WPX Energy00000$68.17$3.02
May 2025WPX Energy00000$62.17$3.12
Apr 2025WPX Energy00000$63.54$3.42
Mar 2025WPX Energy00000$68.24$4.12
Feb 2025WPX Energy00000$71.53$4.19
Jan 2025WPX Energy00000$75.74$4.13
Dec 2024WPX Energy00000$70.12$3.01
Nov 2024WPX Energy202273000$69.95$2.12
Oct 2024WPX Energy275349000$71.99$2.20
Sep 2024WPX Energy44936835350$70.24$2.28
Aug 2024WPX Energy305367000$76.68$1.99
Jul 2024WPX Energy1575000$81.80$2.07
Jun 2024WPX Energy553548000$79.77$2.54
May 2024WPX Energy462436000$80.02$2.12
Apr 2024WPX Energy488502000$85.35$1.60
Mar 2024WPX Energy55752915150$81.28$1.49
Feb 2024WPX Energy5094811071070$77.25$1.72
Jan 2024WPX Energy526568000$74.15$3.18
Dec 2023WPX Energy2701671881880$71.90$2.52
Nov 2023WPX Energy022000$77.69$2.71
Oct 2023WPX Energy021000$85.64$2.98
Sep 2023WPX Energy65104440$89.43$2.64
Aug 2023WPX Energy3723631671670$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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