42-445-31816
Final CompletionPRENTICE NORTHEAST UNIT
TERRY County · District 8 · HIGHMARK ENERGY OPERATING LLC · PRENTICE (6700)
Permits
1
Max Depth
7,400 ft
First Permit
1997-05-09
Latest Activity
1997-05-09
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1998-09-18
Shut-In
—
Plugged
2025-04-11
EWA / Permit operator mismatch
Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Permit: CROSS TIMBERS OPERATING 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
5,750–6,200 ft
Injected (12mo)
29,860 bbl
Permitted Volume
2,500 bbl/d
Max Pressure
2,800 psi
Injection Interval
6,200–7,300 ft
Injected (12mo)
29,860 bbl
Monthly injected volume (bbl, from H-10 filings through 2024-11-01)
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 (6) Elevation 3,536 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| RUSTLER ANHYDRITE (Rustler) | 2,360 ft | +1,176 ft |
| YATES | 3,052 ft | +484 ft |
| SAN ANDRES MARKER (San Andres) | 4,405 ft | -869 ft |
| GLORIETA | 5,779 ft | -2,243 ft |
| UPPER CLEARFORK (Clear Fork) | 6,227 ft | -2,691 ft |
| TUBB | 6,906 ft | -3,370 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 (5)
| Interval | Type |
|---|---|
| 5,829–5,859 ft | Perforated |
| 6,305–6,344 ft | Perforated |
| 6,406–6,491 ft | Perforated |
| 6,406–6,778 ft | Perforated |
| 6,591–6,778 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 2,357 ft | 950 sx |
| 5.5" | 7,001 ft | 1,450 sx |
Permit History (1)
Applications (1)
Records & Logs
5 completion filings on record · 2 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
- 546
- Max Depth
- 7,400 ft
- Drill Type
- Vertical
- County
- TERRY
- District
- 8
- Operator
- HIGHMARK ENERGY OPERATING LLC
- Completed
- 1998-09-18
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