42-501-33282
Final CompletionPRENTICE NORTHEAST UNIT
YOAKUM County · District 8 · HIGHMARK ENERGY OPERATING LLC · PRENTICE (6700)
Permits
2
Max Depth
7,000 ft
First Permit
1987-09-08
Latest Activity
1987-09-08
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2010-06-22
Shut-In
—
Plugged
2020-02-17
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
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 (4) Elevation 3,538 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| T. RUSTLER ANHYDRITE | 2,408 ft | +1,130 ft |
| T. SAN ANDRES | 5,205 ft | -1,667 ft |
| T. GLORIETA G-1 | 5,940 ft | -2,402 ft |
| T. CLEARFORK C-1 | 6,350 ft | -2,812 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 |
|---|---|
| 5,975–6,100 ft | Perforated |
| 6,334–6,810 ft | Open hole |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 8.625" | 485 ft | 425 sx |
| 5.5" | 6,334 ft | 1,400 sx |
Permit History (2)
Applications (2)
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
- 264
- Max Depth
- 7,000 ft
- Drill Type
- Vertical
- County
- YOAKUM
- District
- 8
- Operator
- HIGHMARK ENERGY OPERATING LLC
- Completed
- 2010-06-22
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