42-321-31145
Final CompletionCLARK UNIT #1
MATAGORDA County · District 3 · ENGELKE R. H. · CHALMERS (9250)
Permits
6
Max Depth
9,800 ft
First Permit
1981-07-31
Latest Activity
1991-09-03
Lifespan
10 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1981-10-12
Shut-In
—
Plugged
1993-02-02
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
1993-02
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (3) Elevation 74 ft (KB)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| MIOCENE (Miocene (undifferentiated)) | 1 ft | +73 ft |
| FRIO | 4,900 ft | -4,826 ft |
| FRIO | 6,790 ft | -6,716 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 (5)
| Interval | Type |
|---|---|
| 8,750–8,755 ft | Perforated |
| 9,009–9,012 ft | Perforated |
| 9,180–9,186 ft | Perforated |
| 9,286–9,263 ft | Perforated |
| 9,311–9,314 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 984 ft | 625 sx |
| — | 1,380 ft | 600 sx |
| 2.375" | 9,212 ft | — |
| 5.5" | 9,585 ft | 670 sx |
Permit History (6)
CLARK UNIT 1 · 9,628 ft
1991-09-03
Spud 1991-12-11
CLARK UNIT 1 · 9,800 ft
1991-09-03
CLARK UNIT 1 · 9,628 ft
1988-01-11
CLARK UNIT 1 · 9,628 ft
1986-12-18
CLARK UNIT 1 · 9,628 ft
1984-11-21
CLARK UNIT I · 9,800 ft
1981-07-31
Spud 1981-08-10
Applications (6)
Records & Logs
9 completion filings on record · 3 with log images at RRC.
+3 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
- 2
- Max Depth
- 9,800 ft
- Drill Type
- Vertical
- County
- MATAGORDA
- District
- 3
- Operator
- ENGELKE R. H.
- Completed
- 1981-10-12
Operator
- Name
- ENGELKE, R. H
- Location
- SAN ANTONIO
- P-5 Status
- Delinquent (filed 2002-03-28)
- Cum Oil (all leases)
- 539,448 bbl
- Cum Gas (all leases)
- 235,371 mcf
- Activities
- CSGD/P, G/PUR
- Total Permits
- 221