42-227-34162
PRODUCINGCOLE DORIS CHALK
HOWARD County · District 8 · EXTEX OPERATING COMPANY · HOWARD-GLASSCOCK (WOLFCAMP 7400)
Permits
1
Max Depth
7,850 ft
First Permit
1987-06-02
Latest Activity
1987-06-02
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
1987-07-10
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 (4) Elevation 2,391 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 1,190 ft | +1,201 ft |
| 7 RIVERS (Seven Rivers) | 1,285 ft | +1,106 ft |
| SAN ANDRES | 1,890 ft | +501 ft |
| WOLFCAMP "A" (Wolfcamp) | 7,298 ft | -4,907 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 |
|---|---|
| 7,300–7,326 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 325 ft | 350 sx |
| 8.625" | 3,200 ft | 1,200 sx |
| 5.5" | 7,800 ft | 840 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
- 2
- Max Depth
- 7,850 ft
- Drill Type
- Vertical
- County
- HOWARD
- District
- 8
- Operator
- EXTEX OPERATING COMPANY
- Completed
- 1987-07-10
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