42-211-34690
Final Completion HorizontalDAY
HEMPHILL County · District 10 · CHESAPEAKE OPERATING INC. · ACHILLES (TONKAWA)
Permits
1
Max Depth
15,000 ft
First Permit
2010-03-09
Latest Activity
2010-03-09
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2010-04-18
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
2010-04
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 (4) Elevation 2,347 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| DOUGLAS | 7,135 ft | -4,788 ft |
| BASE HEEBNER | 7,650 ft | -5,303 ft |
| BASE HEEBNER SHALE | 7,650 ft | -5,303 ft |
| TONKAWA | 8,410 ft | -6,063 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 |
|---|---|
| 8,870–12,752 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,517 ft | 870 sx |
| 7" | 8,619 ft | 250 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
- 1011H
- Max Depth
- 15,000 ft
- Drill Type
- Horizontal
- County
- HEMPHILL
- District
- 10
- Operator
- CHESAPEAKE OPERATING INC.
- Completed
- 2010-04-18
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