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Texas oil lease

Producing

BLOCK 31 UNIT

Block 31 Unit is an oil lease in Crane County, Texas, operated by Hilcorp Energy Company in the Block 31 (Ellenburger) field.

1 well

12,915bbl oil, last 12 months+2% vs prior year
RRC lease
08-00445

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Where it sits

This county

Crane CountyCraneUptonMidlandWinklerWardEctorCrane County
Crane County
Gas, last 12 months
18,285 mcf
Oil in Jul 2026
3,360 bbl

Production by month

Oil output held steady over the last 12 months

  • Oil (bars)
  • Gas (line)
  • Last 12 months
Oil output held steady over the last 12 monthsMonthly oil production and gas for BLOCK 31 UNIT, Aug 2023 to Jul 2026. Oil output held steady over the last 12 months. 12,915 bbl in the 12 months through Jul 2026, against 12,719 bbl in the 12 months before.Last 12 months: 12,915 bblbbl per monthmcf per month001,0001,0002,0002,0003,0003,0004,0004,000Oct 23Jan 24AprJulOctJan 25AprJulOctJan 26AprJul
Oil output held steady over the last 12 monthsMonthly oil production and gas for BLOCK 31 UNIT, Aug 2023 to Jul 2026. Oil output held steady over the last 12 months. 12,915 bbl in the 12 months through Jul 2026, against 12,719 bbl in the 12 months before.Last 12 monthsbbl per monthmcf per month001,0001,0002,0002,0003,0003,0004,0004,000Jan 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 BLOCK 31 UNIT 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 BLOCK 31 UNIT 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 2026

Operators of this lease over timeOXY USA Inc., Jan 2020 to Apr 2026; Hilcorp Energy Company, May 2026 to Jul 20262020202120222023202420252026Changed May 2026OXY USA Inc.Jan 2020 to Apr 2026Hilcorp Energy CompanyMay 2026 to now
Operators of this lease over timeOXY USA Inc., Jan 2020 to Apr 2026; Hilcorp Energy Company, May 2026 to Jul 20262020202120222023202420252026Changed May 2026OXY USA Inc.Jan 2020 to Apr 2026Hilcorp Energy CompanyMay 2026 to now

SourceTexas Railroad Commission Production Data Query, through Jul 2026.

1 well on this lease

Wells on BLOCK 31 UNIT
API numberWell no.Status
42-103-32966B 5Active

SourceTexas Railroad Commission Wellbore Query.

Buyers and gatherers

Companies named on the Form P-4, by product
CompanyProductRoleShare%FromUntil
Enterprise Crude Oil LLCOilGathers50May 1, 2026–
Enterprise Crude Pipeline LLCOilGathers50May 1, 2026–
Occidental Energy Marketing,inc.Casinghead gasBuys100Nov 1, 2010–
Oxy USA Inc.Casinghead gasGathers100Nov 1, 2010–
Enterprise Crude Oil LLCOilGathers100May 1, 2010May 1, 2026

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

7,840 acres on the newest permit

A pooling certificate was filed

17 wells are listed on this lease

Permits for Block 31 Unit
API numberWell no.Acreson the permit
42-103-33144B 77,840
42-103-33144B 7L7,840
42-103-3508277,840
42-103-33440E 8L7,840
42-103-33272P 5KL7,840
42-103-33112B 6L7,840
42-103-32966B 57,840
42-103-32966B 5L7,840
42-103-03040A 1 T–
42-103-03043E 3–
42-103-03050F 2 T–
42-103-03071B 2 L–

SourceRailroad Commission drilling permits, Sep 26, 2026 (source 1, source 2).

Estimate your royalty

36 months, newest first

Ledger for BLOCK 31 UNIT
MonthOil producedbblOil soldbblGas producedmcfGas soldmcf, codes 2+3FlaredmcfWTI$/bblHenry Hub$/MMBtu
Jul 2026Hilcorp Energy3,3603,13215150$80.46$2.89
Jun 2026Hilcorp Energy613645000$84.81$3.15
May 2026Hilcorp Energy8472000$102.13$2.94
Apr 2026OXY USA8518661,9961,9960$100.32$2.77
Mar 2026OXY USA1,4471,4673,1413,1410$91.38$3.04
Feb 2026OXY USA1,5101,4322,2132,2130$64.51$3.62
Jan 2026OXY USA6006331,2311,2310$60.04$7.72
Dec 2025OXY USA1,1321,1522,4202,4200$57.97$4.26
Nov 2025OXY USA7437211,9621,9620$60.06$3.79
Oct 2025OXY USA8528541,8131,8130$60.89$3.19
Sep 2025OXY USA9048951,9731,9730$63.96$2.97
Aug 2025OXY USA8198211,5211,5210$64.86$2.91
Jul 2025OXY USA8538481,8211,8210$68.39$3.20
Jun 2025OXY USA7887951,6811,6810$68.17$3.02
May 2025OXY USA8318381,1951,1950$62.17$3.12
Apr 2025OXY USA1,0381,0281,6381,6380$63.54$3.42
Mar 2025OXY USA1,1401,1507587580$68.24$4.12
Feb 2025OXY USA1,0201,0341,7801,7800$71.53$4.19
Jan 2025OXY USA1,1681,1551,5351,5350$75.74$4.13
Dec 2024OXY USA1,2571,2451,6141,6140$70.12$3.01
Nov 2024OXY USA1,1151,1282,4102,4100$69.95$2.12
Oct 2024OXY USA1,2231,2121,4431,4430$71.99$2.20
Sep 2024OXY USA1,1381,1289729720$70.24$2.28
Aug 2024OXY USA1,1481,1582,0222,0220$76.68$1.99
Jul 2024OXY USA1,0551,0572,0492,0490$81.80$2.07
Jun 2024OXY USA1,0451,0404894890$79.77$2.54
May 2024OXY USA1,1271,1197997990$80.02$2.12
Apr 2024OXY USA9879822,5592,5590$85.35$1.60
Mar 2024OXY USA1,0571,0483,1633,1630$81.28$1.49
Feb 2024OXY USA8848912,9482,9480$77.25$1.72
Jan 2024OXY USA9789792,7102,7100$74.15$3.18
Dec 2023OXY USA8218162,0512,0510$71.90$2.52
Nov 2023OXY USA8869012,8462,8460$77.69$2.71
Oct 2023OXY USA1,0701,0722,8932,8930$85.64$2.98
Sep 2023OXY USA1,0041,0263,0003,0000$89.43$2.64
Aug 2023OXY USA1,4601,4132,4612,4610$81.39$2.58

SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Sep 28, 2026.

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Hilcorp Energy Company in Crane County

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Block 31 (Ellenburger) field

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