42-401-33268
PRODUCINGWILLIAMSON UNIT
RUSK County · District 6 · HIGHMARK ENERGY OPERATING LLC · OAK HILL (COTTON VALLEY)
Permits
1
Max Depth
11,000 ft
First Permit
2003-08-20
Latest Activity
2003-08-20
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2003-11-06
Shut-In
—
Plugged
—
P-5 Org Status: Active
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
2003-11
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 (6) Elevation 347 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| TMA | 5,700 ft | -5,353 ft |
| RODESSA | 6,020 ft | -5,673 ft |
| PETTIT | 6,680 ft | -6,333 ft |
| TOP OF TRAVIS PEAK (Travis Peak) | 7,050 ft | -6,703 ft |
| UPPER COTTON VALLEY (Cotton Valley) | 9,050 ft | -8,703 ft |
| TOP C.V. TAYLOR | 10,150 ft | -9,803 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 |
|---|---|
| 10,197–10,487 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,075 ft | 350 sx |
| 4.5" | 10,610 ft | 1,373 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
- 7
- Max Depth
- 11,000 ft
- Drill Type
- Vertical
- County
- RUSK
- District
- 6
- Operator
- HIGHMARK ENERGY OPERATING LLC
- Completed
- 2003-11-06
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