42-445-31784
PRODUCINGPRENTICE NORTHEAST UNIT
TERRY County · District 8 · HIGHMARK ENERGY OPERATING LLC · PRENTICE (6700)
Permits
1
Max Depth
7,200 ft
First Permit
1996-10-16
Latest Activity
1996-10-16
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1997-12-24
Shut-In
—
Plugged
—
P-5 Org Status: Active
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
5,750–6,100 ft
Injected (12mo)
—
Permitted Volume
2,500 bbl/d
Max Pressure
2,800 psi
Injection Interval
5,750–6,100 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 (6) Elevation 3,528 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| RUSTLER ANHYDRITE (Rustler) | 2,395 ft | +1,133 ft |
| YATES | 3,096 ft | +432 ft |
| SAN ANDRES MARKER (San Andres) | 4,471 ft | -943 ft |
| GLORIETA | 5,804 ft | -2,276 ft |
| UPPER CLEARFORK (Clear Fork) | 6,338 ft | -2,810 ft |
| TUBB | 7,068 ft | -3,540 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 (4)
| Interval | Type |
|---|---|
| 5,962–5,967 ft | Perforated |
| 6,419–6,483 ft | Perforated |
| 6,615–6,711 ft | Perforated |
| 6,970–7,049 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 2,400 ft | 950 sx |
| 5.5" | 7,184 ft | 1,500 sx |
Permit History (1)
Applications (1)
Records & Logs
4 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
- 721
- Max Depth
- 7,200 ft
- Drill Type
- Vertical
- County
- TERRY
- District
- 8
- Operator
- HIGHMARK ENERGY OPERATING LLC
- Completed
- 1997-12-24
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