Texas oil lease
ProducingCOOPER, J. B.
Cooper, J. B. is an oil lease in Jack County, Texas, operated by Leonard Brothers Operating Co. in the Weir field.
10 wells
- Operator
- Leonard Brothers Operating Co.
- County
- Jack County
- Field
- Weir
- RRC lease
- 09-03969
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Where it sits
This county
- Oil in Jul 2026
- 75 bbl
- Reporting since
- Jan 2020
Production by month
Oil output rose 58% over the last 12 months
- Oil (bars)
- Last 12 months
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
Where the gas went
No gas disposition reported for this lease
Who has run this lease
The operator changed once, most recently in Feb 2021
- Leonard Brothers Operating Co. Feb 2021 to now
- S.b. Street Operating, Inc. Jan 2020 to Jan 2021
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
10 wells on this lease
| API number | Well no. | Status |
|---|---|---|
| 42-237-06260 | 5 | Shut-in |
| 42-237-06286 | 1 | Active |
| 42-237-06485 | 13 | Active |
| 42-237-06487 | 9 | Active |
| 42-237-81901 | 2 | Active |
| 42-237-81904 | 4 | Active |
| 42-237-81906 | 7 | Active |
| 42-237-81907 | 8 | Active |
| 42-237-81909 | 11 | Active |
| 42-237-81910 | 12 | Active |
SourceTexas Railroad Commission Wellbore Query.
Buyers and gatherers
| Company | Product | Role | Share% | From | Until |
|---|---|---|---|---|---|
| Transoil Marketing, LLC | Oil | Gathers | 100 | Oct 1, 2021 | – |
| Gulfmark Energy, Inc. | Oil | Gathers | 100 | Oct 1, 2018 | Oct 1, 2021 |
SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).
150 acres on the newest permit
13 wells are listed on this lease
| API number | Well no. | Permit issued | Completed | Acreson the permit |
|---|---|---|---|---|
| 42-237-06487 | 9 | Jan 5, 2001 | Dec 19, 2000 | 150 |
| 42-237-06260 | 5 | – | May 31, 2006 | – |
| 42-237-06286 | 1 | – | – | – |
| 42-237-06485 | 13 | – | Jan 12, 1984 | – |
| 42-237-81901 | 2 | – | Jan 12, 1984 | – |
| 42-237-81902 | 3 | – | – | – |
| 42-237-81902 | 3W | – | – | – |
| 42-237-81904 | 4 | – | Aug 18, 2025 | – |
| 42-237-81906 | 7 | – | Nov 13, 2024 | – |
| 42-237-81907 | 8 | – | Nov 4, 2024 | – |
| 42-237-81908 | 10 | – | Jan 12, 1984 | – |
| 42-237-81909 | 11 | – | Mar 7, 1957 | – |
Estimate your royalty
36 months, newest first
| Month | Oil producedbbl | Oil soldbbl | WTI$/bbl | Henry Hub$/MMBtu |
|---|---|---|---|---|
| Jul 2026Leonard Brothers | 75 | 151 | $80.46 | $2.89 |
| Jun 2026Leonard Brothers | 58 | 0 | $84.81 | $3.15 |
| May 2026Leonard Brothers | 94 | 105 | $102.13 | $2.94 |
| Apr 2026Leonard Brothers | 68 | 0 | $100.32 | $2.77 |
| Mar 2026Leonard Brothers | 44 | 86 | $91.38 | $3.04 |
| Feb 2026Leonard Brothers | 144 | 128 | $64.51 | $3.62 |
| Jan 2026Leonard Brothers | 75 | 153 | $60.04 | $7.72 |
| Dec 2025Leonard Brothers | 53 | 41 | $57.97 | $4.26 |
| Nov 2025Leonard Brothers | 0 | 0 | $60.06 | $3.79 |
| Oct 2025Leonard Brothers | 0 | 0 | $60.89 | $3.19 |
| Sep 2025Leonard Brothers | 8 | 0 | $63.96 | $2.97 |
| Aug 2025Leonard Brothers | 87 | 137 | $64.86 | $2.91 |
| Jul 2025Leonard Brothers | 0 | 0 | $68.39 | $3.20 |
| Jun 2025Leonard Brothers | 0 | 0 | $68.17 | $3.02 |
| May 2025Leonard Brothers | 0 | 0 | $62.17 | $3.12 |
| Apr 2025Leonard Brothers | 7 | 0 | $63.54 | $3.42 |
| Mar 2025Leonard Brothers | 38 | 0 | $68.24 | $4.12 |
| Feb 2025Leonard Brothers | 95 | 114 | $71.53 | $4.19 |
| Jan 2025Leonard Brothers | 173 | 205 | $75.74 | $4.13 |
| Dec 2024Leonard Brothers | 60 | 0 | $70.12 | $3.01 |
| Nov 2024Leonard Brothers | 6 | 0 | $69.95 | $2.12 |
| Oct 2024Leonard Brothers | 36 | 49 | $71.99 | $2.20 |
| Sep 2024Leonard Brothers | 5 | 0 | $70.24 | $2.28 |
| Aug 2024Leonard Brothers | 28 | 108 | $76.68 | $1.99 |
| Jul 2024Leonard Brothers | 53 | 0 | $81.80 | $2.07 |
| Jun 2024Leonard Brothers | 109 | 152 | $79.77 | $2.54 |
| May 2024Leonard Brothers | 59 | 0 | $80.02 | $2.12 |
| Apr 2024Leonard Brothers | 102 | 155 | $85.35 | $1.60 |
| Mar 2024Leonard Brothers | 30 | 0 | $81.28 | $1.49 |
| Feb 2024Leonard Brothers | 61 | 82 | $77.25 | $1.72 |
| Jan 2024Leonard Brothers | 190 | 161 | $74.15 | $3.18 |
| Dec 2023Leonard Brothers | 112 | 159 | $71.90 | $2.52 |
| Nov 2023Leonard Brothers | 95 | 0 | $77.69 | $2.71 |
| Oct 2023Leonard Brothers | 65 | 52 | $85.64 | $2.98 |
| Sep 2023Leonard Brothers | 64 | 16 | $89.43 | $2.64 |
| Aug 2023Leonard Brothers | 5 | 0 | $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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Nearby
This lease belongs to
Leonard Brothers Operating Co. in Jack County
- COOPER, JOE B.
433 bbl
- COOPER, J. B.
70 bbl
Leases within 10 km
- COOPER, J. B.
70 bbl · 0.2 km
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0 bbl · 0.4 km
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0 bbl · 0.6 km
- COOPER, JOE B.
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- SMITH UNIT
385 bbl · 0.7 km
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0 mcf · 0.7 km
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0 mcf · 1.6 km
- HARRIS, BETTY SMITH
0 mcf · 1.7 km
- HARRIS, RANDY
0 bbl · 1.8 km
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