42-255-30577
Final CompletionN. P. U. PORTER GUY
KARNES County · District 2 · PENNZOIL EXPLORATION & PROD. CO. · TULSITA-WILCOX (7 900)
Permits
3
Max Depth
8,500 ft
First Permit
1977-06-28
Latest Activity
1993-07-22
Lifespan
16 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1977-07-20
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: PENNZOIL EXPLORATION & PROD. CO. ≠ Production: PALEO OIL COMPANY LLC (reported 2026-04)
Resolved via: production → PALEO OIL COMPANY 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 (9) Elevation 393 ft (DF)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| RECKLAW | 6,785 ft | -6,392 ft |
| REKLAW | 6,785 ft | -6,392 ft |
| SLICK | 6,946 ft | -6,553 ft |
| LULING | 7,032 ft | -6,639 ft |
| MASSIVE | 7,298 ft | -6,905 ft |
| 7600 UPPER | 7,542 ft | -7,149 ft |
| 7600' UPPER | 7,542 ft | -7,149 ft |
| 7900 | 7,868 ft | -7,475 ft |
| 7900' | 7,868 ft | -7,475 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 |
|---|---|
| 7,032–7,036 ft | Perforated |
| 7,040–7,068 ft | Perforated |
| 7,214–7,222 ft | Perforated |
| 7,226–7,236 ft | Perforated |
| 7,638–7,643 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 10.75" | 1,565 ft | 1,125 sx |
| 2.875" | 8,025 ft | 1,450 sx |
| 2.875" | 8,044 ft | 1,450 sx |
Permit History (3)
Applications (3)
Records & Logs
5 completion filings on record · 2 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
- 4 U
- Max Depth
- 8,500 ft
- Drill Type
- Vertical
- County
- KARNES
- District
- 2
- Operator
- PENNZOIL EXPLORATION & PROD. CO.
- Completed
- 1977-07-20
Operator
- Location
- CARTHAGE
- P-5 Status
- Inactive (filed 1998-04-23)
- Cum Oil (all leases)
- 28,665,122 bbl
- Cum Gas (all leases)
- 504,481,960 mcf
- Total Permits
- 1,023