42-339-30707
Final CompletionCONROE FIELD UNIT
MONTGOMERY County · District 3 · HIGHMARK ENERGY OPERATING LLC · CONROE
Permits
1
Max Depth
5,825 ft
First Permit
1985-02-12
Latest Activity
1985-02-12
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1995-06-28
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 (10) Elevation 173 ft (DF)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| 1 MAIN CONROE | 4,802 ft | -4,629 ft |
| 1ST MAIN CONROE | 4,802 ft | -4,629 ft |
| 2 MAIN CONROE | 4,859 ft | -4,686 ft |
| 2ND MAIN CONROE | 4,859 ft | -4,686 ft |
| 3 MAIN CONROE | 4,951 ft | -4,778 ft |
| 3RD MAIN CONROE | 4,951 ft | -4,778 ft |
| 4 MAIN CONROE | 5,015 ft | -4,842 ft |
| 5 MAIN CONROE | 5,047 ft | -4,874 ft |
| 6 MAIN CONROE | 5,138 ft | -4,965 ft |
| 7 MAIN CONROE | 5,269 ft | -5,096 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 (9)
| Interval | Type |
|---|---|
| 4,815–4,826 ft | Perforated |
| 4,850–4,862 ft | Perforated |
| 4,859–4,866 ft | Perforated |
| 4,877–4,897 ft | Perforated |
| 4,972–4,977 ft | Perforated |
| 5,047–5,058 ft | Perforated |
| 5,047–5,077 ft | Perforated |
| 5,073–5,077 ft | Perforated |
| 5,095–5,105 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 10.75" | 1,611 ft | 1,010 sx |
| 7" | 5,349 ft | 470 sx |
Permit History (1)
Applications (1)
Records & Logs
12 completion filings on record · 1 with log images at RRC.
+6 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
- 3531
- Max Depth
- 5,825 ft
- Drill Type
- Vertical
- County
- MONTGOMERY
- District
- 3
- Operator
- HIGHMARK ENERGY OPERATING LLC
- Completed
- 1995-06-28
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