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Texas oil lease

Producing

UL BIGHORN D 21-31-19

Ul Bighorn D 21-31-19 is an oil lease in Winkler County, Texas, operated by Apache Corporation in the Phantom (Wolfcamp) field.

1 well

23,043bbl oil, last 12 months−18% vs prior year
Operator
Apache Corporation
County
Winkler County
Field
Phantom (Wolfcamp)
RRC lease
08-51497

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Where it sits

This county

Winkler CountyWinklerAndrewsWardLovingEctorWinkler County
Winkler County
Gas, last 12 months
22,979 mcf
Oil in Jul 2026
1,214 bbl

Production by month

Oil output fell 18% over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output fell 18% over the last 12 monthsMonthly oil production and gas for UL BIGHORN D 21-31-19, Aug 2023 to Jul 2026. Oil output fell 18% over the last 12 months. 23,043 bbl in the 12 months through Jul 2026, against 27,996 bbl in the 12 months before.Last 12 months: 23,043 bblbbl per monthmcf per month001,0001,0002,0002,0003,0003,0004,0004,0005,0005,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output fell 18% over the last 12 monthsMonthly oil production and gas for UL BIGHORN D 21-31-19, Aug 2023 to Jul 2026. Oil output fell 18% over the last 12 months. 23,043 bbl in the 12 months through Jul 2026, against 27,996 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0001,0002,0002,0003,0003,0004,0004,0005,0005,000Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

Where the gas went

Since Aug 2024 the lease's gas goes to a transmission line instead of a processing plant

Flaring peaked at 15.2% of the gas in May 2025.

  • Processing plant (3)
  • Transmission line (2)
  • Lease fuel (1)
  • Flared (4)
Since Aug 2024 the lease's gas goes to a transmission line instead of a processing plantShare of UL BIGHORN D 21-31-19 gas by disposition code each month, Aug 2023 to Jul 2026. Since Aug 2024 the lease's gas goes to a transmission line instead of a processing plant. Flaring peaked at 15.2% of the gas in May 2025.Share of the lease’s gas by disposition code, per month0%50%100%Aug 2024: plant to lineFlared 15.2%Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Since Aug 2024 the lease's gas goes to a transmission line instead of a processing plantShare of UL BIGHORN D 21-31-19 gas by disposition code each month, Aug 2023 to Jul 2026. Since Aug 2024 the lease's gas goes to a transmission line instead of a processing plant. Flaring peaked at 15.2% of the gas in May 2025.Share of gas by disposition code0%50%100%Aug 24: plant to lineFlared 15.2%Jan 24JulJan 25JulJan 26Jul

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

  • Transmission line (2)

    97% · 26,243 mcf

  • Flared (4)

    2.0% · 545 mcf

  • Lease fuel (1)

    0.9% · 247 mcf

2.0% of the gas flared in the last 12 months. 5 months above 3%.

Who has run this lease

The operator changed 3 times, most recently in Aug 2024

Operators of this lease over timeOasis Petroleum Permian LLC, Jan 2020 to Feb 2021; Percussion Petroleum Oper Ii,llc, Mar 2021 to Jul 2023; Callon Permian II, LLC, Aug 2023 to Jul 2024; Apache Corporation, Aug 2024 to Jul 20262020202120222023202420252026Changed Mar 2021Changed Aug 2023Changed Aug 2024Oasis Petroleum Permian LLCJan 2020 to Feb 2021Percussion Petroleum Oper Ii,…Mar 2021 to Jul 2023Callon Permian II, LLCAug 2023 to Jul 2024Apache CorporationAug 2024 to now
Operators of this lease over timeOasis Petroleum Permian LLC, Jan 2020 to Feb 2021; Percussion Petroleum Oper Ii,llc, Mar 2021 to Jul 2023; Callon Permian II, LLC, Aug 2023 to Jul 2024; Apache Corporation, Aug 2024 to Jul 20262020202120222023202420252026Changed Mar 2021Changed Aug 2023Changed Aug 2024Oasis Petroleum Permian LLCJan 2020 to Feb 2021Percussion Petroleum Oper Ii,llcMar 2021 to Jul 2023Callon Permian II, LLCAug 2023 to Jul 2024Apache CorporationAug 2024 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on UL BIGHORN D 21-31-19
API numberWell no.Status
42-495-340085104HActive

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Energy Transfer CompanyOilGathers100Sep 1, 2025–
Targa Delaware LLCCasinghead gasBuys100Jun 12, 2018–
Targa Delaware LLCCasinghead gasGathers100Jun 12, 2018–
Oryx Delaware Oil Transport LLCOilGathers100Jan 22, 2020Sep 1, 2025
Pe Logistics LLCOilGathers100Jun 12, 2018Jan 22, 2020

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

Who buys my oilOil price check

1,281.40 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 Ul Bighorn D 21-31-19
API numberWell no.Acreson the permit
42-495-340085104H1,281.40

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

Unit decimal checker

What APA Corporation told investors it received

Apache Corporation is linked to APA Corporation (APA).
Realized prices reported by APA Corporation
QuarterOil$ per bblFiling
Q2 2026$98.24SEC filing
Q1 2026$78.69SEC filing
Q4 2025$61.03SEC filing
Q3 2025$67.43SEC filing
Q2 2025$65.58SEC filing
Q1 2025$73.73SEC filing

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

Estimate your royalty

36 months, newest first

Ledger for UL BIGHORN D 21-31-19
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Apache Corporation1,2141,3091,2151,20213$80.46$2.89
Jun 2026Apache Corporation2,2212,1552,2252,21015$84.81$3.15
May 2026Apache Corporation2,0662,0972,3342,31321$102.13$2.94
Apr 2026Apache Corporation2,6082,6362,6062,58422$100.32$2.77
Mar 2026Apache Corporation3,3383,3392,9462,90343$91.38$3.04
Feb 2026Apache Corporation2,5332,5282,8852,73078$64.51$3.62
Jan 2026Apache Corporation2,8282,7593,2053,04061$60.04$7.72
Dec 2025Apache Corporation2,1672,0962,1001,886148$57.97$4.26
Nov 2025Apache Corporation00000$60.06$3.79
Oct 2025Apache Corporation021000$60.89$3.19
Sep 2025Apache Corporation35452134633214$63.96$2.97
Aug 2025Apache Corporation3,7143,7403,1173,08235$64.86$2.91
Jul 2025Apache Corporation3,2613,1792,3062,25254$68.39$3.20
Jun 2025Apache Corporation2,5582,4301,7501,70941$68.17$3.02
May 2025Apache Corporation87202796712$62.17$3.12
Apr 2025Apache Corporation2,0502,1752,1052,005100$63.54$3.42
Mar 2025Apache Corporation4,4774,4032,4552,4541$68.24$4.12
Feb 2025Apache Corporation3,0372,9552,0281,9192$71.53$4.19
Jan 2025Apache Corporation1,9501,9802,1002,0301$75.74$4.13
Dec 2024Apache Corporation2,7462,7052,6882,6060$70.12$3.01
Nov 2024Apache Corporation2,1622,1462,2072,1400$69.95$2.12
Oct 2024Apache Corporation1,9782,0472,1762,1210$71.99$2.20
Sep 2024Apache Corporation2,1142,1112,2892,2870$70.24$2.28
Aug 2024Apache Corporation1,5761,4491,4971,42967$76.68$1.99
Jul 2024Callon Permian00000$81.80$2.07
Jun 2024Callon Permian00000$79.77$2.54
May 2024Callon Permian00000$80.02$2.12
Apr 2024Callon Permian03000$85.35$1.60
Mar 2024Callon Permian524947470$81.28$1.49
Feb 2024Callon Permian00000$77.25$1.72
Jan 2024Callon Permian00000$74.15$3.18
Dec 2023Callon Permian00000$71.90$2.52
Nov 2023Callon Permian00000$77.69$2.71
Oct 2023Callon Permian00000$85.64$2.98
Sep 2023Callon Permian00000$89.43$2.64
Aug 2023Callon Permian00000$81.39$2.58

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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Nearby

This lease belongs to

OperatorApache CorporationFieldPhantom (Wolfcamp)CountyWinkler County

Apache Corporation in Winkler County

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Phantom (Wolfcamp) field

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