Texas oil lease
ProducingDANIEL UNIT -4-
Daniel Unit -4- is an oil lease in Glasscock County, Texas, operated by Black Swan Opco, LLC in the Spraberry (Trend Area) field.
2 wells
- Operator
- Black Swan Opco, LLC
- County
- Glasscock County
- RRC lease
- 08-42360
Is your check right?
Where it sits
This county
- Gas, last 12 months
- 8,314 mcf
- Oil in Jul 2026
- 0 bbl
Production by month
Oil output rose 5% over the last 12 months
- Oil (bars)
- Gas (line)
- Last 12 months
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
Where the gas went
Since Mar 2024 the lease's gas goes to a processing plant instead of a transmission line
- Processing plant (3)
- Transmission line (2)
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
Who has run this lease
The operator changed once, most recently in Mar 2024
- Black Swan Opco, LLC Mar 2024 to now
- Diamondback E&P LLC Jan 2020 to Feb 2024
SourceTexas Railroad Commission Production Data Query, through Jul 2026.
2 wells on this lease
| API number | Well no. | Status |
|---|---|---|
| 42-173-34139 | 2 | Active |
| 42-173-34156 | 3 | Shut-in |
SourceTexas Railroad Commission Wellbore Query.
Buyers and gatherers
| Company | Product | Role | Share% | From |
|---|---|---|---|---|
| Plains Marketing, L.p. | Oil | Gathers | 100 | Jan 27, 2012 |
| Targa Pl Mid-Cont Westtex LLC | Casinghead gas | Buys | 100 | Nov 1, 2015 |
| Targa Pl Mid-Cont Westtex LLC | Casinghead gas | Gathers | 100 | Oct 1, 2015 |
SourceRailroad Commission Form P-4 file, Sep 24, 2026 (source).
Estimate your royalty
36 months, newest first
| Month | Oil producedbbl | Oil soldbbl | Gas producedmcf | Gas soldmcf, codes 2+3 | Flaredmcf | WTI$/bbl | Henry Hub$/MMBtu |
|---|---|---|---|---|---|---|---|
| Jul 2026Black Swan | 0 | 0 | 245 | 245 | 0 | $80.46 | $2.89 |
| Jun 2026Black Swan | 1 | 118 | 297 | 297 | 0 | $84.81 | $3.15 |
| May 2026Black Swan | 9 | 0 | 369 | 369 | 0 | $102.13 | $2.94 |
| Apr 2026Black Swan | 143 | 185 | 569 | 569 | 0 | $100.32 | $2.77 |
| Mar 2026Black Swan | 126 | 168 | 621 | 621 | 0 | $91.38 | $3.04 |
| Feb 2026Black Swan | 134 | 0 | 648 | 648 | 0 | $64.51 | $3.62 |
| Jan 2026Black Swan | 137 | 179 | 715 | 715 | 0 | $60.04 | $7.72 |
| Dec 2025Black Swan | 323 | 344 | 1,004 | 1,004 | 0 | $57.97 | $4.26 |
| Nov 2025Black Swan | 335 | 543 | 1,171 | 1,171 | 0 | $60.06 | $3.79 |
| Oct 2025Black Swan | 506 | 360 | 1,261 | 1,261 | 0 | $60.89 | $3.19 |
| Sep 2025Black Swan | 361 | 356 | 995 | 995 | 0 | $63.96 | $2.97 |
| Aug 2025Black Swan | 446 | 360 | 419 | 419 | 0 | $64.86 | $2.91 |
| Jul 2025Black Swan | 415 | 539 | 226 | 226 | 0 | $68.39 | $3.20 |
| Jun 2025Black Swan | 401 | 178 | 195 | 195 | 0 | $68.17 | $3.02 |
| May 2025Black Swan | 354 | 525 | 281 | 281 | 0 | $62.17 | $3.12 |
| Apr 2025Black Swan | 366 | 347 | 47 | 47 | 0 | $63.54 | $3.42 |
| Mar 2025Black Swan | 109 | 0 | 12 | 12 | 0 | $68.24 | $4.12 |
| Feb 2025Black Swan | 205 | 184 | 28 | 28 | 0 | $71.53 | $4.19 |
| Jan 2025Black Swan | 205 | 368 | 19 | 19 | 0 | $75.74 | $4.13 |
| Dec 2024Black Swan | 185 | 0 | 18 | 18 | 0 | $70.12 | $3.01 |
| Nov 2024Black Swan | 0 | 0 | 0 | 0 | 0 | $69.95 | $2.12 |
| Oct 2024Black Swan | 0 | 0 | 0 | 0 | 0 | $71.99 | $2.20 |
| Sep 2024Black Swan | 12 | 171 | 39 | 39 | 0 | $70.24 | $2.28 |
| Aug 2024Black Swan | 156 | 178 | 175 | 175 | 0 | $76.68 | $1.99 |
| Jul 2024Black Swan | 79 | 0 | 148 | 148 | 0 | $81.80 | $2.07 |
| Jun 2024Black Swan | 91 | 178 | 193 | 193 | 0 | $79.77 | $2.54 |
| May 2024Black Swan | 99 | 0 | 218 | 218 | 0 | $80.02 | $2.12 |
| Apr 2024Black Swan | 55 | 0 | 231 | 231 | 0 | $85.35 | $1.60 |
| Mar 2024Black Swan | 110 | 179 | 254 | 254 | 0 | $81.28 | $1.49 |
| Feb 2024Diamondback E&P | 88 | 0 | 253 | 253 | 0 | $77.25 | $1.72 |
| Jan 2024Diamondback E&P | 80 | 177 | 289 | 289 | 0 | $74.15 | $3.18 |
| Dec 2023Diamondback E&P | 95 | 0 | 298 | 298 | 0 | $71.90 | $2.52 |
| Nov 2023Diamondback E&P | 94 | 175 | 268 | 268 | 0 | $77.69 | $2.71 |
| Oct 2023Diamondback E&P | 115 | 0 | 302 | 302 | 0 | $85.64 | $2.98 |
| Sep 2023Diamondback E&P | 98 | 168 | 287 | 287 | 0 | $89.43 | $2.64 |
| Aug 2023Diamondback E&P | 149 | 177 | 294 | 294 | 0 | $81.39 | $2.58 |
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
Black Swan Opco, LLC in Glasscock County
- DALE WILDE 10-15 A
45,054 bbl
- LPI-WILDE 10
39,494 bbl
- SHERMINATOR 12-13 B
38,979 bbl
- EDWIN WILDE 10-15 C
39,935 bbl
- EDWIN WILDE 10-15 B
28,031 bbl
- NECHES -15A-
12,094 bbl
- NECHES -15-
8,730 bbl
- DANIEL UNIT -2-
3,665 bbl
- JURECEK -C-
3,453 bbl
- JURECEK "A"
3,151 bbl
Spraberry (Trend Area) field
- HILL 64
2,892 bbl
- DUKE 40
2,797 bbl
- MARTIN "5"
2,663 bbl
- GRAY UNIT "22"
2,452 bbl
- R.A.B. DAVIDSON
2,147 bbl
- SALE RANCH 28N
1,664 bbl
- BROUGHTON TRUST 43
2,006 bbl
- FASKEN -S-
2,791 bbl
- BARFIELD 15
2,627 bbl
- SPANISH TRAIL 3-10 A9
1,334 bbl
Leases within 10 km
- SHERMINATOR 12-13 A
67,408 bbl · 0.3 km
- SHERMINATOR 12-13 B
38,979 bbl · 0.3 km
- SHERMINATOR 12-13 C
84,799 bbl · 0.3 km
- DANIEL -7A-
2,627 bbl · 0.6 km
- DANIEL UNIT -2-
3,665 bbl · 0.6 km
- DANIEL UNIT -3-
1,975 bbl · 0.6 km
- GLASSCOCK -X- FEE
1,646 mcf · 0.7 km
- TETRIS SN 1-48 D
3,658 bbl · 0.7 km
- TETRIS SN 1-48 C
4,911 bbl · 0.7 km
- DANIEL UNIT "3"
23,766 mcf · 0.9 km
Drilling permits within 10 km
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Permit 0914827 · May 12, 2026
GOLDEN WINGS EAST O 33-21 #4315H
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Permit 0914833 · May 12, 2026
GOLDEN WINGS EAST M 33-21 #4313H
new drill · horizontal · De Central Operating, LLC · Glasscock County · 9 km
Permit 0914829 · May 12, 2026
GOLDEN WINGS EAST N 33-21 #4214H
new drill · horizontal · De Central Operating, LLC · Glasscock County · 9 km
Permit 0914830 · May 12, 2026
GOLDEN WINGS EAST J 33-21 #4310H
new drill · horizontal · De Central Operating, LLC · Glasscock County · 9 km
Permit 0914826 · May 12, 2026