42-365-34797
YALLISON UNIT
PANOLA County · District 6 · DEVON ENERGY PRODUCTION CO L.P. · CARTHAGE (6900)
Permits
4
Max Depth
10,000 ft
First Permit
2001-12-31
Latest Activity
2004-05-17
Lifespan
2 yrs
Regulatory Status
Schedule
OFF SCHEDULE
Completion
2004-07-21
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: DEVON ENERGY PRODUCTION CO L.P. ≠ Production: SHERIDAN PRODUCTION CO III, LLC (reported 2026-04)
Resolved via: production → SHERIDAN PRODUCTION CO III, 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
2002-08
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 240 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| GLEN ROSE | 3,290 ft | -3,050 ft |
| BMA | 4,968 ft | -4,728 ft |
| RODESSA | 5,085 ft | -4,845 ft |
| PETTIT | 5,745 ft | -5,505 ft |
| TRAVIS PEAK | 6,090 ft | -5,850 ft |
| COTTON VALLEY | 8,245 ft | -8,005 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 |
|---|---|
| 6,953–6,959 ft | Perforated |
| 8,341–9,500 ft | Perforated |
Casing (4)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,022 ft | 330 sx |
| 2.875" | 9,613 ft | 1,450 sx |
| 2.875" | 9,629 ft | 1,450 sx |
| — | 9,629 ft | — |
Permit History (4)
Applications (4)
Records & Logs
5 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
- 21
- Max Depth
- 10,000 ft
- Drill Type
- Vertical
- County
- PANOLA
- District
- 6
- Operator
- DEVON ENERGY PRODUCTION CO L.P.
- Completed
- 2004-07-21
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
- 9,261