42-211-34771
Final Completion HorizontalBILL
HEMPHILL County · District 10 · CHESAPEAKE OPERATING INC. · FELDMAN (TONKAWA)
Permits
1
Max Depth
18,000 ft
First Permit
2010-08-13
Latest Activity
2010-08-13
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2010-10-09
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: CHESAPEAKE OPERATING INC. ≠ Production: UNBRIDLED RESOURCES, LLC (reported 2026-04)
Resolved via: production → UNBRIDLED RESOURCES, 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
2010-10
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 2,667 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| BASE HEEBNER | 6,825 ft | -4,158 ft |
| DOUGLAS SAND (Douglas) | 6,930 ft | -4,263 ft |
| DOUGLASS SD | 6,930 ft | -4,263 ft |
| TONKAWA | 7,535 ft | -4,868 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 |
|---|---|
| 7,648–12,084 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,524 ft | 690 sx |
| 7" | 7,050 ft | 320 sx |
Permit History (1)
Applications (1)
Records & Logs
2 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
- 141H
- Max Depth
- 18,000 ft
- Drill Type
- Horizontal
- County
- HEMPHILL
- District
- 10
- Operator
- CHESAPEAKE OPERATING INC.
- Completed
- 2010-10-09
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