42-251-33831
PRODUCING HorizontalDirectionalTOLBERT UNIT
JOHNSON County · District 9 · UPP OPERATING LLC · NEWARK EAST (BARNETT SHALE)
Permits
2
Max Depth
8,900 ft
First Permit
2009-12-10
Latest Activity
2009-12-10
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2010-07-06
Shut-In
—
Plugged
—
P-5 Org Status: Active
EWA / Permit operator mismatch
Scheduling: UPP OPERATING LLC ≠ Permit: EOG RESOURCES, INC.
Resolved via: production → UPP OPERATING, 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
2010-07
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 588 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| STRAWN | 2,100 ft | -1,512 ft |
| ATOKA | 3,980 ft | -3,392 ft |
| MARBLE FALLS | 7,865 ft | -7,277 ft |
| BARNETT SHALE (Barnett) | 8,162 ft | -7,574 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 |
|---|---|
| 8,595–13,160 ft | Perforated |
Casing (2)
| Size | Set Depth | Cement |
|---|---|---|
| 9.625" | 1,944 ft | 695 sx |
| 5.5" | 13,250 ft | 1,460 sx |
Permit History (2)
Applications (2)
Records & Logs
1 completion filing on record · 1 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
- 12H
- Max Depth
- 8,900 ft
- Drill Type
- Horizontal, Directional
- County
- JOHNSON
- District
- 9
- Operator
- UPP OPERATING LLC
- Completed
- 2010-07-06
Operator
- Name
- UPP OPER, LLC
- Location
- HOUSTON
- P-5 Status
- Active (filed 2026-03-06)
- Cum Oil (all leases)
- 293,241 bbl
- Cum Gas (all leases)
- 486,804,996 mcf
- Activities
- CSGD/G, CSGD/P, G/PUR, GTHS/G, OPRS/G, OPRS/O
- Total Permits
- 33