42-003-37200
SHUT INUNIVERSITY -154-
ANDREWS County · District 8 · HIGHMARK ENERGY OPERATING LLC · SHAFTER LAKE (CLEAR FORK)
Permits
1
Max Depth
7,400 ft
First Permit
1993-02-05
Latest Activity
1993-02-05
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2003-08-27
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
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 (5) Elevation 3,231 ft
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| GRAYBURG | 4,167 ft | -936 ft |
| SAN ANDRES | 4,456 ft | -1,225 ft |
| GLORIETA | 5,714 ft | -2,483 ft |
| UPPER CLEARFORK (Clear Fork) | 5,820 ft | -2,589 ft |
| TUBB (LOWER CLEARFORK) (Tubb) | 6,673 ft | -3,442 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 (2)
| Interval | Type |
|---|---|
| 6,647–6,934 ft | Perforated |
| 6,724–6,934 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 1,760 ft | 1,050 sx |
| 5.5" | 7,050 ft | 1,075 sx |
Permit History (1)
Applications (1)
Records & Logs
3 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
- 21
- Max Depth
- 7,400 ft
- Drill Type
- Vertical
- County
- ANDREWS
- District
- 8
- Operator
- HIGHMARK ENERGY OPERATING LLC
- Completed
- 2003-08-27
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