Texas oil lease
ProducingMARTINEZ, ADELA
Martinez, Adela is an oil lease in Bexar County, Texas, operated by Calk, Roger D. in the Fairfield field.
10 wells
- Operator
- Calk, Roger D.
- County
- Bexar County
- Field
- Fairfield
- RRC lease
- 01-06156
Is your check right?
Where it sits
This county
- Oil in Jun 2026
- 60 bbl
- Reporting since
- Jan 2020
Production by month
Oil output fell 22% over the last 12 months
Jul 2026 was not reported.
- 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
10 wells on this lease
| API number | Well no. | Status |
|---|---|---|
| 42-029-31333 | 4 | Shut-in |
| 42-029-31334 | 1 | Shut-in |
| 42-029-31346 | 7 | Shut-in |
| 42-029-31347 | 8 | Shut-in |
| 42-029-31464 | 9 | Shut-in |
| 42-029-31637 | 10 | Shut-in |
| 42-029-31788 | 3 | Shut-in |
| 42-029-31789 | 5 | Shut-in |
| 42-029-31851 | 6 | Shut-in |
| 42-029-80736 | 2 | Active |
SourceTexas Railroad Commission Wellbore Query.
Buyers and gatherers
| Company | Product | Role | Share% | From | Until |
|---|---|---|---|---|---|
| Dorado Oil Company | Oil | Gathers | 34 | Nov 1, 2025 | – |
| Gulfmark Energy, Inc. | Oil | Gathers | 33 | Nov 1, 2025 | – |
| Plains Marketing, L.p. | Oil | Gathers | 33 | Nov 1, 2025 | – |
| Gulfmark Energy, Inc. | Oil | Gathers | 50 | Jan 1, 2018 | Nov 1, 2025 |
| Plains Marketing, L.p. | Oil | Gathers | 50 | Jan 1, 2024 | Nov 1, 2025 |
| Shell Trading (Us) Company | Oil | Gathers | 50 | Oct 1, 2002 | Jan 1, 2024 |
SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).
24 acres on the newest permit
10 wells are listed on this lease
| API number | Well no. | Permit issued | Completed | Acreson the permit |
|---|---|---|---|---|
| 42-029-31788 | 3 | Nov 9, 1981 | Dec 2, 1981 | 24 |
| 42-029-31789 | 5 | Nov 9, 1981 | Dec 1, 1981 | 24 |
| 42-029-31851 | 6 | Nov 3, 1981 | Dec 5, 1981 | 24 |
| 42-029-31637 | 10 | Jul 15, 1981 | Dec 18, 1982 | 24 |
| 42-029-31464 | 9 | Apr 20, 1981 | Jul 13, 1981 | 24 |
| 42-029-31346 | 7 | Feb 18, 1981 | Apr 2, 1981 | 24 |
| 42-029-31347 | 8 | Feb 18, 1981 | Apr 3, 1981 | 24 |
| 42-029-31333 | 4 | Feb 5, 1981 | Apr 1, 1981 | 24 |
| 42-029-31334 | 1 | Jan 30, 1981 | Dec 28, 1979 | 24 |
| 42-029-80736 | 2 | – | Dec 28, 1979 | – |
Estimate your royalty
36 months, newest first
| Month | Oil producedbbl | Oil soldbbl | WTI$/bbl | Henry Hub$/MMBtu |
|---|---|---|---|---|
| Jul 2026No report filed | – | – | $80.46 | $2.89 |
| Jun 2026 | 60 | 150 | $84.81 | $3.15 |
| May 2026 | 20 | 0 | $102.13 | $2.94 |
| Apr 2026 | 20 | 0 | $100.32 | $2.77 |
| Mar 2026 | 20 | 0 | $91.38 | $3.04 |
| Feb 2026 | 10 | 0 | $64.51 | $3.62 |
| Jan 2026 | 10 | 0 | $60.04 | $7.72 |
| Dec 2025 | 10 | 0 | $57.97 | $4.26 |
| Nov 2025 | 29 | 149 | $60.06 | $3.79 |
| Oct 2025 | 10 | 0 | $60.89 | $3.19 |
| Sep 2025 | 10 | 0 | $63.96 | $2.97 |
| Aug 2025 | 20 | 0 | $64.86 | $2.91 |
| Jul 2025 | 20 | 0 | $68.39 | $3.20 |
| Jun 2025 | 20 | 0 | $68.17 | $3.02 |
| May 2025 | 20 | 0 | $62.17 | $3.12 |
| Apr 2025 | 20 | 0 | $63.54 | $3.42 |
| Mar 2025 | 110 | 150 | $68.24 | $4.12 |
| Feb 2025 | 10 | 0 | $71.53 | $4.19 |
| Jan 2025 | 10 | 0 | $75.74 | $4.13 |
| Dec 2024 | 10 | 0 | $70.12 | $3.01 |
| Nov 2024 | 10 | 0 | $69.95 | $2.12 |
| Oct 2024 | 10 | 150 | $71.99 | $2.20 |
| Sep 2024 | 20 | 0 | $70.24 | $2.28 |
| Aug 2024 | 20 | 0 | $76.68 | $1.99 |
| Jul 2024 | 20 | 0 | $81.80 | $2.07 |
| Jun 2024 | 20 | 0 | $79.77 | $2.54 |
| May 2024 | 20 | 0 | $80.02 | $2.12 |
| Apr 2024 | 20 | 0 | $85.35 | $1.60 |
| Mar 2024 | 20 | 0 | $81.28 | $1.49 |
| Feb 2024 | 10 | 150 | $77.25 | $1.72 |
| Jan 2024 | 20 | 0 | $74.15 | $3.18 |
| Dec 2023 | 20 | 0 | $71.90 | $2.52 |
| Nov 2023 | 20 | 0 | $77.69 | $2.71 |
| Oct 2023 | 20 | 0 | $85.64 | $2.98 |
| Sep 2023 | 20 | 0 | $89.43 | $2.64 |
| Aug 2023 | 20 | 0 | $81.39 | $2.58 |
No report filed
SourceTexas Railroad Commission Production Data Query, through Jul 2026. Prices: EIA, through Aug 2026. Updated Sep 28, 2026.
How to check your stub against this leaseDo your checks match this lease?
Nearby
This lease belongs to
Calk, Roger D. in Bexar County
- EPSTEIN-BALBOA -A-
398 bbl
- DELAO, OPHELIA
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- CREEK
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- SCHNEIDER, GEORGE P.
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- FANCHER
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- AGUILAR, CIRILDO
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- BROWN, ALICIA
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- NIXON
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- CUNNINGHAM
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- GOTT, SAM
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Fairfield field
- HENRY
280 bbl
- MASSEY, MARVIN M. JR.
266 bbl
- GARZA (R)
265 bbl
- DELAO, OPHELIA
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- BOND
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- GROTHUES,G B OIL #1
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- GROTHUES,G B OIL #2
220 bbl
- RALPH & SONS FARMS, INC
207 bbl
- HAECKER
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- PIERCE
196 bbl
Leases within 10 km
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Drilling permits within 10 km
RALPH & SONS FARMS, INC #16
new drill · Premier Minerals, Inc. · Medina County · 2.2 km
Permit 0915857 · May 27, 2026
RALPH & SONS FARMS, INC #18
new drill · Premier Minerals, Inc. · Medina County · 2.1 km
Permit 0915859 · May 27, 2026
RALPH & SONS FARMS, INC #17
new drill · Premier Minerals, Inc. · Medina County · 2.1 km
Permit 0915858 · May 27, 2026
RALPH & SONS FARMS, INC #15
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Permit 0915591 · May 15, 2026
ERD UNIT #15
new drill · JM Calk Operating, LLC · Bexar County · 2.6 km
Permit 0913507 · Feb 19, 2026