42-219-34989
Final CompletionCOBB TOM A
HOCKLEY County · District 8 · HILCORP ENERGY COMPANY · YELLOWHOUSE
Permits
1
Max Depth
4,800 ft
First Permit
1986-08-18
Latest Activity
1986-08-18
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1986-10-15
Shut-In
—
Plugged
1989-07-11
EWA / Permit operator mismatch
Scheduling: HILCORP ENERGY COMPANY ≠ Permit: HANOVER ENERGY INC.
Resolved via: scheduling → HILCORP ENERGY COMPANY
Operator History
originally filed by HANOVER ENERGY INC. — asset transferred
Formation Tops (4) Elevation 3,576 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| RUSTLER ANHYDRITE (Rustler) | 1,928 ft | +1,648 ft |
| YATES SAND (Yates) | 2,432 ft | +1,144 ft |
| SAN ANDRES ZONE VIII (San Andres) | 4,580 ft | -1,004 ft |
| SAN ANDRES ZONE IX (San Andres) | 4,616 ft | -1,040 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 |
|---|---|
| 4,558–4,688 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 420 ft | 250 sx |
| 5.5" | 4,558 ft | 1,100 sx |
Permit History (1)
Applications (1)
Records & Logs
2 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
- 12
- Max Depth
- 4,800 ft
- Drill Type
- Vertical
- County
- HOCKLEY
- District
- 8
- Operator
- HILCORP ENERGY COMPANY
- Completed
- 1986-10-15
Operator
- Name
- HILCORP ENGY CO
- Location
- HOUSTON
- P-5 Status
- X (filed 2026-03-27)
- Cum Oil (all leases)
- 75,699,281 bbl
- Cum Gas (all leases)
- 1,779,939,645 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 3,439