42-339-31038
TEMP ABANDONEDSOUTH TEXAS DEVELOPMENT CO. 1
MONTGOMERY County · District 3 · HIGHMARK ENERGY OPERATING LLC · CONROE (CONS. U)
Permits
1
Max Depth
2,300 ft
First Permit
2003-01-28
Latest Activity
2003-01-28
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2015-02-09
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Production operator mismatch
Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Production: DENBURY ONSHORE, LLC (reported 2018-05)
EWA / Permit operator mismatch
Scheduling: HIGHMARK ENERGY OPERATING LLC ≠ Permit: EXXON MOBIL 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
2003-06
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 (14) Elevation 176 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| P-11 SAND | 897 ft | -721 ft |
| P11 SAND | 897 ft | -721 ft |
| P-13 SAND | 992 ft | -816 ft |
| P13 SAND | 992 ft | -816 ft |
| P-15 SAND | 1,169 ft | -993 ft |
| P15 SAND | 1,169 ft | -993 ft |
| P-20 SAND | 1,403 ft | -1,227 ft |
| P-20SAND | 1,403 ft | -1,227 ft |
| P20 SAND | 1,403 ft | -1,227 ft |
| P-21 SAND | 1,428 ft | -1,252 ft |
| P-21SAND | 1,428 ft | -1,252 ft |
| P21 SAND | 1,428 ft | -1,252 ft |
| P-22 SAND | 1,504 ft | -1,328 ft |
| P22 SAND | 1,504 ft | -1,328 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 (3)
| Interval | Type |
|---|---|
| 903–913 ft | Perforated |
| 994–1,004 ft | Perforated |
| 1,430–1,440 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 7" | 364 ft | 230 sx |
| 2.875" | 1,816 ft | 360 sx |
Permit History (1)
Applications (1)
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
- 104P
- Max Depth
- 2,300 ft
- Drill Type
- Vertical
- County
- MONTGOMERY
- District
- 3
- Operator
- HIGHMARK ENERGY OPERATING LLC
- Completed
- 2015-02-09
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