42-227-34098
SHUT INCOLE DORIS CHALK
HOWARD County · District 8 · EXTEX OPERATING COMPANY · HOWARD-GLASSCOCK (WOLFCAMP 7400)
Permits
1
Max Depth
7,800 ft
First Permit
1986-11-14
Latest Activity
1986-11-14
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1987-04-16
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: EXTEX OPERATING COMPANY ≠ Permit: PHILLIPS PETROLEUM COMPANY
Resolved via: production → EXTEX OPERATING COMPANY
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 2,438 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 1,242 ft | +1,196 ft |
| 7 RIVERS (Seven Rivers) | 1,333 ft | +1,105 ft |
| SAN ANDRES | 1,943 ft | +495 ft |
| GLORIETA | 2,574 ft | -136 ft |
| CLEARFORK (Clear Fork) | 3,025 ft | -587 ft |
| UPR. WLFCP. LIME | 6,980 ft | -4,542 ft |
| WOLFCAMP 'A' (Wolfcamp) | 7,344 ft | -4,906 ft |
| WOLFCAMP SHALE MARKER (Wolfcamp) | 7,434 ft | -4,996 ft |
| CANYON | 7,550 ft | -5,112 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 (1)
| Interval | Type |
|---|---|
| 7,311–7,374 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 315 ft | 350 sx |
| 8.625" | 3,198 ft | 1,425 sx |
| 5.5" | 7,700 ft | 780 sx |
Permit History (1)
Applications (1)
Records & Logs
2 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
- 1
- Max Depth
- 7,800 ft
- Drill Type
- Vertical
- County
- HOWARD
- District
- 8
- Operator
- EXTEX OPERATING COMPANY
- Completed
- 1987-04-16
Operator
- Name
- EXTEX OPER CO
- Location
- HOUSTON
- P-5 Status
- Active (filed 2026-01-07)
- Cum Oil (all leases)
- 5,887,486 bbl
- Cum Gas (all leases)
- 10,031,045 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 117