42-211-30013
Final CompletionJOHNSON
HEMPHILL County · District 10 · DEVON ENERGY PRODUCTION CO L.P. · BUFFALO WALLOW (MORROW)
Permits
2
Max Depth
20,258 ft
First Permit
1996-12-13
Latest Activity
2006-03-24
Lifespan
9 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1997-08-21
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: DEVON ENERGY PRODUCTION CO L.P. ≠ Production: MMGL TXPH, LLC (reported 2026-04)
Resolved via: production → MMGL TXPH, 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
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 (6) Elevation 2,575 ft (KB)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| PENN. (Pennsylvanian) | 6,625 ft | -4,050 ft |
| BASE HIEBNER SH | 7,973 ft | -5,398 ft |
| CLEVELAND | 10,250 ft | -7,675 ft |
| GRANITE WASH | 11,057 ft | -8,482 ft |
| MORROW SH. (Morrow) | 13,700 ft | -11,125 ft |
| SQUAWBELLY | 14,925 ft | -12,350 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 (5)
| Interval | Type |
|---|---|
| 11,346–11,830 ft | Perforated |
| 12,000–12,602 ft | Perforated |
| 12,717–13,180 ft | Perforated |
| 13,980–14,000 ft | Perforated |
| 19,786–20,150 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 20" | 806 ft | — |
| 13.375" | 6,400 ft | — |
| 9.625" | 13,657 ft | — |
Permit History (2)
Applications (2)
Records & Logs
6 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
- 1027
- Max Depth
- 20,258 ft
- Drill Type
- Vertical
- County
- HEMPHILL
- District
- 10
- Operator
- DEVON ENERGY PRODUCTION CO L.P.
- Completed
- 1997-08-21
Operator
- Location
- OKLAHOMA CI, TY
- P-5 Status
- Active (filed 2025-12-18)
- Cum Oil (all leases)
- 365,943,944 bbl
- Cum Gas (all leases)
- 9,274,880,220 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 9,264