42-003-37602
SHUT INSHAFTER LAKE CLEARFORK UNIT
ANDREWS County · District 8 · HIGHMARK ENERGY OPERATING LLC · SHAFTER LAKE (CLEAR FORK)
Permits
1
Max Depth
7,200 ft
First Permit
1995-02-17
Latest Activity
1995-02-17
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1995-06-27
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Permit: HENRY PETROLEUM CORP.
Resolved via: production → HIGHMARK ENERGY 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
1995-02
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 (5) Elevation 3,218 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 2,876 ft | +342 ft |
| SAN ANDRES | 4,475 ft | -1,257 ft |
| UPPER CLEARFORK (Clear Fork) | 5,775 ft | -2,557 ft |
| LOWER CLEARFORK (Clear Fork) | 6,622 ft | -3,404 ft |
| TUBB | 6,768 ft | -3,550 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 (7)
| Interval | Type |
|---|---|
| 6,672–6,685 ft | Perforated |
| 6,690–6,697 ft | Perforated |
| 6,798–6,838 ft | Perforated |
| 6,881–6,891 ft | Perforated |
| 6,899–6,902 ft | Perforated |
| 6,911–6,914 ft | Perforated |
| 6,918–6,922 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 1,800 ft | 1,050 sx |
| 5.5" | 7,000 ft | 1,665 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 and the UL library can't be deep-linked — clicking copies the API for you to paste.
No GPS coordinates yet
Well Details
- Well Number
- 404
- Max Depth
- 7,200 ft
- Drill Type
- Vertical
- County
- ANDREWS
- District
- 8
- Operator
- HIGHMARK ENERGY OPERATING LLC
- Completed
- 1995-06-27
Operator
- Location
- HOUSTON
- P-5 Status
- Active (filed 2026-03-09)
- Cum Oil (all leases)
- 4,551,977 bbl
- Cum Gas (all leases)
- 30,465,409 mcf
- Activities
- CSGD/G, G/PUR, GTHS/G, OPRS/G, OPRS/O
- Total Permits
- 15