42-339-30506
Final CompletionCONROE FIELD UNIT
MONTGOMERY County · District 3 · HIGHMARK ENERGY OPERATING LLC · CONROE
Permits
1
Max Depth
5,700 ft
First Permit
1981-04-15
Latest Activity
1981-04-15
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1990-04-25
Shut-In
—
Plugged
—
EWA / Permit operator mismatch
Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Permit: EXXON CORP.
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 (7) Elevation 162 ft (DF)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| FRIO | 2,770 ft | -2,608 ft |
| TOP OF FRIO (Frio) | 2,770 ft | -2,608 ft |
| TOP OF VICKSBURG (Vicksburg) | 3,532 ft | -3,370 ft |
| VICKSBURG | 3,532 ft | -3,370 ft |
| WHITSIT | 3,834 ft | -3,672 ft |
| MAIN CONROE | 4,856 ft | -4,694 ft |
| TOP OF MAIN CONROE | 4,856 ft | -4,694 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 (8)
| Interval | Type |
|---|---|
| 4,683–4,691 ft | Perforated |
| 4,723–4,727 ft | Perforated |
| 4,908–4,913 ft | Perforated |
| 4,926–4,930 ft | Perforated |
| 4,968–4,974 ft | Perforated |
| 5,013–5,017 ft | Perforated |
| 5,013–5,019 ft | Perforated |
| 5,033–5,038 ft | Perforated |
Casing (6)
| Size | Set Depth | Cement |
|---|---|---|
| 16" | 320 ft | 600 sx |
| 16" | 320 ft | 600 sx |
| 10.75" | 1,012 ft | 730 sx |
| 2.875" | 4,486 ft | — |
| 7" | 5,199 ft | 1,200 sx |
| 7" | 5,199 ft | 1,200 sx |
Permit History (1)
Applications (1)
Records & Logs
8 completion filings on record.
+2 more filings
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
- 3908
- Max Depth
- 5,700 ft
- Drill Type
- Vertical
- County
- MONTGOMERY
- District
- 3
- Operator
- HIGHMARK ENERGY OPERATING LLC
- Completed
- 1990-04-25
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