42-401-33124
Final CompletionWILLIAMSON UNIT
RUSK County · District 6 · HIGHMARK ENERGY OPERATING LLC · OAK HILL (COTTON VALLEY)
Permits
1
Max Depth
11,000 ft
First Permit
2001-06-06
Latest Activity
2001-06-06
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2001-11-05
Shut-In
—
Plugged
2022-02-22
EWA / Permit operator mismatch
Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Permit: ENERGEN RESOURCES CORPORATION
Resolved via: scheduling → 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
2001-11
Last Production
2023-07
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 (6) Elevation 378 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| TMA | 5,750 ft | -5,372 ft |
| RODESSA | 6,070 ft | -5,692 ft |
| PETTIT | 6,740 ft | -6,362 ft |
| TOP OF TRAVIS PEAK (Travis Peak) | 7,040 ft | -6,662 ft |
| UPPER COTTON VALLEY (Cotton Valley) | 9,060 ft | -8,682 ft |
| TOP C.V. TAYLOR | 10,140 ft | -9,762 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 (1)
| Interval | Type |
|---|---|
| 10,204–10,480 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,065 ft | 350 sx |
| 4.5" | 10,580 ft | 1,240 sx |
Permit History (1)
Applications (1)
Records & Logs
2 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
- 4
- Max Depth
- 11,000 ft
- Drill Type
- Vertical
- County
- RUSK
- District
- 6
- Operator
- HIGHMARK ENERGY OPERATING LLC
- Completed
- 2001-11-05
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