42-173-32328
Final CompletionBLALOCK A
GLASSCOCK County · District 8 · COG OPERATING LLC · BLALOCK (WOLFCAMP)
Permits
1
Max Depth
11,500 ft
First Permit
1993-05-27
Latest Activity
1993-05-27
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1993-07-07
Shut-In
—
Plugged
—
EWA / Permit operator mismatch
Scheduling: COG OPERATING LLC ≠ Permit: THOMPSON, J. CLEO
Resolved via: scheduling → COG OPERATING LLC
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 (6) Elevation 2,562 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SAN ANDRES | 3,615 ft | -1,053 ft |
| SPRABERRY | 6,630 ft | -4,068 ft |
| UPPER SPRABERRY (Spraberry) | 6,630 ft | -4,068 ft |
| LOWER SPRABERRY (Spraberry) | 7,140 ft | -4,578 ft |
| DEAN | 7,992 ft | -5,430 ft |
| WOLFCAMP | 8,128 ft | -5,566 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 ↗
Perforations (1)
| Interval | Type |
|---|---|
| 8,415–8,530 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 295 ft | 325 sx |
| 8.625" | 3,735 ft | 1,230 sx |
| 4.5" | 8,800 ft | 560 sx |
Permit History (1)
Applications (1)
Records & Logs
4 completion filings on record · 1 with log images at RRC.
Completion packets open directly (post-2011 filings include attached logs). Log images can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 3
- Max Depth
- 11,500 ft
- Drill Type
- Vertical
- County
- GLASSCOCK
- District
- 8
- Operator
- COG OPERATING LLC
- Completed
- 1993-07-07
Operator
- Name
- COG OPER LLC
- Location
- MIDLAND
- P-5 Status
- X (filed 2026-06-02)
- Cum Oil (all leases)
- 645,285,792 bbl
- Cum Gas (all leases)
- 305,183,488 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 4,547