Permits
2
Max Depth
7,999 ft
First Permit
2019-10-23
Latest Activity
2023-10-03
Lifespan
4 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
—
Production Summary Production data is a work in progress — still being validated against RRC filings. Spot something off or have questions? [email protected]
Cum Oil
— bbl
Cum Gas
— mcf
First Production
1993-01
Last Production
2026-07
Operator History
Chain of Custody
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (11) Elevation 2,657 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| RUSTLER | 403 ft | +2,254 ft |
| YATES | 1,572 ft | +1,085 ft |
| SEVEN RIVERS | 1,805 ft | +852 ft |
| QUEEN | 2,356 ft | +301 ft |
| GRAYBURG | 2,603 ft | +54 ft |
| JUDKINS | 3,021 ft | -364 ft |
| MCKNIGHT | 3,301 ft | -644 ft |
| SAN ANGELO | 3,635 ft | -978 ft |
| CLEARFORK (Clear Fork) | 3,986 ft | -1,329 ft |
| TUBB | 4,364 ft | -1,707 ft |
| WICHITA-ALBANY | 4,921 ft | -2,264 ft |
As reported by operators on W-2/G-1 completion filings (RRC wellbore records). Depths are measured depth; names appear as filed. Subsea = reported elevation − measured depth (negative = below sea level; vertical wellbores only). View filings & logs at RRC ↗
Offset Well Tops (nearest 8 wells with tops)
What nearby completed wells reported.
Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).
Perforations (3)
| Interval | Type |
|---|---|
| 4,440–4,740 ft | Perforated |
| 5,670–5,946 ft | Perforated |
| ?–5,946 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 549 ft | 400 sx |
| 5.5" | 5,988 ft | 2,400 sx |
Permit History (2)
Applications (2)
Records & Logs
3 completion filings on record.
Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library can't be deep-linked — clicking copies the API for you to paste.
Well Details
- Well Number
- 521U
- Max Depth
- 7,999 ft
- Drill Type
- Vertical
- County
- CRANE
- District
- 8
- Operator
- BLACKBEARD OPERATING, LLC
Operator
- Name
- BLACKBEARD OPER, LLC
- Location
- FORT WORTH
- P-5 Status
- Active (filed 2025-10-02)
- Cum Oil (all leases)
- 58,958,044 bbl
- Cum Gas (all leases)
- 236,342,564 mcf
- Activities
- G/PUR, OPRS/G, OPRS/O
- Total Permits
- 2,231