42-445-31465
SHUT INPRENTICE NORTHEAST UNIT
TERRY County · District 8 · HIGHMARK ENERGY OPERATING LLC · PRENTICE (6700)
Permits
1
Max Depth
7,000 ft
First Permit
1987-05-20
Latest Activity
1987-05-20
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2020-03-27
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Permit: AMOCO PRODUCTION COMPANY
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
Injection / Disposal
Permitted Volume
2,500 bbl/d
Max Pressure
2,800 psi
Injection Interval
5,750–7,300 ft
Injected (12mo)
—
Monthly injected volume (bbl, from H-10 filings through 2025-11-01)
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 (9) Elevation 3,498 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| T. RUSTLER ANHYDRITE | 2,494 ft | +1,004 ft |
| SAN ANDRES | 4,614 ft | -1,116 ft |
| T. SAN ANDRES | 4,614 ft | -1,116 ft |
| HOLT | 5,805 ft | -2,307 ft |
| GLORIETA | 6,000 ft | -2,502 ft |
| GLORIETA G-1 (Glorieta) | 6,030 ft | -2,532 ft |
| T. GLORIETA G-1 | 6,030 ft | -2,532 ft |
| UPPER CLEARFORK (Clear Fork) | 6,303 ft | -2,805 ft |
| T. CLEARFORK C-1 | 6,616 ft | -3,118 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 |
|---|---|
| 6,616–6,794 ft | Perforated |
| 6,616–6,794 ft | Open hole |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 475 ft | 400 sx |
| 5.5" | 6,616 ft | 1,900 sx |
Permit History (1)
Applications (1)
Records & Logs
4 completion filings on record.
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
- 266
- Max Depth
- 7,000 ft
- Drill Type
- Vertical
- County
- TERRY
- District
- 8
- Operator
- HIGHMARK ENERGY OPERATING LLC
- Completed
- 2020-03-27
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