WELL · 42-383-42158 · DISTRICT 9
UL Acfd 4475 #4WB
Reagan County · Spraberry (Trend Area) field · Producing · Horizontal
UL Acfd 4475 #4WB (API 42-383-42158) is a horizontal well in Reagan County operated by Black Swan Opco LLC, completed March 15, 2026 and listed as producing on the RRC schedule.
The RRC has issued one drilling permit, issued July 2, 2025, permitted to 8,500 ft.
Completion filings report 9 formation tops, including Queen, Grayburg, San Andres, Spraberry.
Its lease has reported 521K barrels of oil and 494K mcf of gas since July 2025, last reporting in July 2026. The lease carries 11 wells, so these are lease totals, not this well alone.
Operator of record
Edmond, OK · P-5 Y, filed Nov 4, 2025 · 81 permits on file · (405) 590-5956
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Black Swan Opco LLC |
| Production reports | Black Swan Opco, LLCthrough Apr 2026 |
| Latest permit | Black Swan Opco, LLCJul 2, 2025 |
- 8,500
- total depth, ft
- 1
- permits on file
- Jul 2, 2025
- last permit issued
- Mar 15, 2026
- completed
- 521K
- cumulative oil, bbl
- 494K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jul 2025 THROUGH Jul 2026
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Mar 15, 2026
- Shut in
- —
- Plugged
- —
Operator's P-5 on the schedule: Active
Surface location
31.214313, -101.610470
OpenStreetMap → · Google Maps →
Permit surface location from the RRC GIS record, in Reagan County.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the lease this well is completed on; they carry 11 wells in total, so volumes are shared.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| UL Acfd 4475 O-9-23377 | Spraberry (Trend Area) | Black Swan Opco, LLC | 11 | 521K | 494K | Jul 2025 – Jul 2026 |
Oil, barrels lease total
Last 12 months 520,604 · prior 12 0
Gas, mcf lease total
Last 12 months 493,984 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Black Swan Opco, LLCSep 2025 → Apr 2026
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 908946-99 | Drill | Black Swan Opco, LLC | Jun 27, 2025 | Jul 2, 2025 | Aug 1, 2025 | 8,500 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| — | — O-9-23377 | — | — | — | — |
Formation tops
As filed on W-2/G-1. Subsea from 2,786 ft elevation.Download CSV →
| Formation | MD ft | Subsea |
|---|---|---|
| Queen | 2,780 | 6 |
| Grayburg | 3,308 | -522 |
| San AndresSAN ANDRES - SALTWATER FLOW, POS | 5,407 | -2,621 |
| SpraberrySPRABERRY UPPER | 6,052 | -3,266 |
| Spraberry | 6,717 | -3,931 |
| WolfcampWOLFCAMP B | 8,075 | -5,289 |
| WolfcampWOLFCAMP B | 8,076 | -5,290 |
| Clear ForkCLEARFORK | — | — |
| Ellenburger | — | — |
| Fusselman | — | — |
| Strawn | — | — |
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 8,454 | 25,055 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 1,168 | 17.5 | 1,050 S |
| 9.625 | 7,407 | 12.25 | 630 S |
| 5.5 | 25,083 | 8.5 | 4,360 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. About these reports →
| Suffix | Filed | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Jul 10, 2026 | Jun 17, 2026 | — |
| 00 | May 18, 2026 | Apr 23, 2026 | Yes |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-383-42158 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-383-42158 → scanned completion filings
Log images are in archives with no per-well link: the RRC's Neubus archive (2004 onward) and the University Lands library. then paste it into their search.
Nearby wells and their tops
NEAREST 8 LOCATED WELLS WITH TOPS · WITHIN 16 KM
Draw a cross-section
This well's tops beside its 5 nearest neighbours, subsea-aligned so they line up regardless of surface terrain.
UL 8-442-383-42159
0.0 KM · Black Swan Opco, LLC · Section with this well →
| Queen | 2,727 | 59 |
| Grayburg | 3,245 | -459 |
| San Andres | 5,342 | -2,556 |
| Spraberry | 6,266 | -3,480 |
| Ellenburger | — | |
| Clear Fork | — | |
| Strawn | — | |
| Fusselman | — |
UL 8-442-383-42157
0.0 KM · Black Swan Opco, LLC · Section with this well →
| Queen | 2,762 | 25 |
| Grayburg | 3,367 | -580 |
| San Andres | 5,447 | -2,660 |
| Spraberry | 6,786 | -3,999 |
| Clear Fork | — | |
| Strawn | — | |
| Fusselman | — | |
| Ellenburger | — |
UL 8-442-383-42156
0.0 KM · Black Swan Opco, LLC · Section with this well →
| Queen | 2,728 | 59 |
| Grayburg | 3,326 | -539 |
| San Andres | 5,502 | -2,715 |
| Spraberry | 6,229 | -3,442 |
| Spraberry | 6,822 | -4,035 |
| Wolfcamp | 8,045 | -5,258 |
| Strawn | — | |
| Fusselman | — |
10 TOPS · FIRST 8
UL 8-442-383-42160
0.0 KM · Black Swan Opco, LLC · Section with this well →
| Queen | 2,739 | 46 |
| Grayburg | 3,265 | -480 |
| San Andres | 5,336 | -2,551 |
| Spraberry | 6,645 | -3,860 |
| Fusselman | — | |
| Strawn | — | |
| Clear Fork | — | |
| Ellenburger | — |
UL 8-442-383-42161
0.0 KM · Black Swan Opco, LLC · Section with this well →
| Queen | 2,758 | 27 |
| Grayburg | 3,225 | -440 |
| San Andres | 5,238 | -2,453 |
| Spraberry | 6,090 | -3,305 |
| Spraberry | 6,661 | -3,876 |
| Wolfcamp | 7,932 | -5,147 |
| Fusselman | — | |
| Ellenburger | — |
10 TOPS · FIRST 8
UL 8-442-383-42155
0.0 KM · Black Swan Opco, LLC · Section with this well →
| Queen | 2,762 | 25 |
| Grayburg | 3,290 | -503 |
| San Andres | 5,546 | -2,759 |
| Spraberry | 6,229 | -3,442 |
| Spraberry | 6,800 | -4,013 |
| Wolfcamp | 8,132 | -5,345 |
| Strawn | — | |
| Clear Fork | — |
10 TOPS · FIRST 8
University 942-383-40172
2.4 KM · Sem Operating Company LLC · Section with this well →
| Grayburg | 1,869 | 810 |
| Queen | 3,438 | -759 |
| San Andres | 4,097 | -1,418 |
| Clear Fork | 5,046 | -2,367 |
| Spraberry | 7,117 | -4,438 |
| Wolfcamp | 8,040 | -5,361 |
| Fusselman | — | |
| Strawn | — |
9 TOPS · FIRST 8
University 942-383-39872
2.4 KM · Sem Operating Company LLC · Section with this well →
| Grayburg | 2,494 | 185 |
| Queen | 3,440 | -761 |
| San Andres | 4,097 | -1,418 |
| Clear Fork | 5,046 | -2,367 |
| Wolfcamp | 8,055 | -5,376 |
| Strawn | — | |
| Fusselman | — | |
| Ellenburger | — |
9 TOPS · FIRST 8
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/38342158, documented in the API reference.