42-439-31661
Final Completion HorizontalWESTERFELD-MATHIS UNIT 1
TARRANT County · District 9 · CHESAPEAKE OPERATING INC. · NEWARK EAST (BARNETT SHALE)
Permits
4
Max Depth
10,000 ft
First Permit
2006-06-15
Latest Activity
2008-09-10
Lifespan
2 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
—
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: CHESAPEAKE OPERATING INC. ≠ Production: TEP BARNETT USA, LLC (reported 2026-04)
Resolved via: production → TEP BARNETT USA, 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
2008-04
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 (3) Elevation 25 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| ATOKA LIME (Atoka) | 7,705 ft | -7,680 ft |
| BASAL ATOKA (Atoka) | 8,131 ft | -8,106 ft |
| UPPER BARNETT (Barnett) | 8,237 ft | -8,212 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 (2)
| Interval | Type |
|---|---|
| 8,840–10,003 ft | Perforated |
| 10,252–11,415 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 2,166 ft | 540 sx |
| 9.625" | 2,167 ft | 540 sx |
| 5.5" | 11,553 ft | 1,290 sx |
| 5.5" | 11,555 ft | 1,290 sx |
Permit History (4)
WESTERFELD-MATHIS UNIT 1 · 10,000 ft
2008-09-10
Spud 2008-02-29
WESTERFELD-MATHIS UNIT 1 · 10,000 ft
2006-06-15
Spud 2008-02-29
WESTERFELD-MATHIS · 9,000 ft
2006-06-15
Spud 2008-02-29
WESTERFELD-MATHIS · 9,000 ft
2006-06-15
Spud 2008-02-29
Applications (4)
Records & Logs
3 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
- 1H
- Max Depth
- 10,000 ft
- Drill Type
- Horizontal
- County
- TARRANT
- District
- 9
- Operator
- CHESAPEAKE OPERATING INC.
Operator
- Name
- PARKWAY PETRO, INC
- Location
- OKLAHOMA CI, TY
- P-5 Status
- Delinquent (filed 2024-12-10)
- Cum Oil (all leases)
- 120,218,990 bbl
- Cum Gas (all leases)
- 5,501,647,035 mcf
- Total Permits
- 13,061