42-501-33947
HorizontalWEST M. M.
YOAKUM County · District 8 · RILEY PERMIAN OPERATING CO LLC · WEST (DEVONIAN)
Permits
2
Max Depth
11,300 ft
First Permit
1994-12-01
Latest Activity
1994-12-01
Lifespan
< 1 yr
Regulatory Status
Schedule
OFF SCHEDULE
Completion
1996-05-06
Shut-In
—
Plugged
—
EWA / Production operator mismatch
Scheduling: RILEY PERMIAN OPERATING CO LLC ≠ Production: GRIZZLY OP OF DELAWARE, LLC (reported 2020-03)
EWA / Permit operator mismatch
Scheduling: RILEY PERMIAN OPERATING CO LLC ≠ Permit: MW PETROLEUM CORPORATION
Resolved via: scheduling → RILEY PERMIAN OPERATING CO 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 (4) Elevation 3,671 ft (KB)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| L. MISSISSIPPIAN | 10,417 ft | -6,746 ft |
| LOWER MISSISSIPPIAN (Mississippian) | 10,417 ft | -6,746 ft |
| WOODFORD | 11,039 ft | -7,368 ft |
| DEVONIAN | 11,109 ft | -7,438 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 |
|---|---|
| 11,109–11,238 ft | Perforated |
| 11,120–11,363 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 430 ft | 425 sx |
| 9.625" | 5,770 ft | 1,225 sx |
| 7" | 11,180 ft | 650 sx |
Permit History (2)
Applications (2)
Records & Logs
4 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
- 11B
- Max Depth
- 11,300 ft
- Drill Type
- Horizontal
- County
- YOAKUM
- District
- 8
- Operator
- RILEY PERMIAN OPERATING CO LLC
- Completed
- 1996-05-06
Operator
- Location
- OKLAHOMA CI, TY
- P-5 Status
- X (filed 2026-04-16)
- Cum Oil (all leases)
- 31,166,202 bbl
- Cum Gas (all leases)
- — mcf
- Activities
- OPRS/O
- Total Permits
- 275