42-495-34913
PRODUCING HorizontalAFTERSHOCK EAST A UNIT
WINKLER County · District 8 · COG OPERATING LLC · PHANTOM (WOLFCAMP)
Permits
2
Max Depth
12,500 ft
First Permit
2023-12-07
Latest Activity
2023-12-07
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2024-03-21
Shut-In
—
Plugged
—
P-5 Org Status: X
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
2024-03
Last Production
2026-07
Lease Production
Production is reported at the lease level. View production data, decline curves, and history on the lease page.
Formation Tops (10) Elevation 2,983 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| DELAWARE | 5,055 ft | -2,072 ft |
| CAPITAN REEF - HIGH FLOWS (Capitan) | — | — |
| CLEARFORK (Clear Fork) | — | — |
| COLBY / QUEEN | — | — |
| GLORIETA | — | — |
| HOLT | — | — |
| RUSTLER - POSSIBLE FLOW; POSSIBL (Rustler) | — | — |
| SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres) | — | — |
| SEVEN RIVERS / QUEEN (Seven Rivers) | — | — |
| YATES | — | — |
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 ↗
Offset Well Tops (nearest 8 wells with tops)
What nearby completed wells reported.
Nearest wells within 10 mi (surface locations). Click wells to select them, then open the cross-section to compare tops side by side (max 6 wells per section, including this one).
Perforations (1)
| Interval | Type |
|---|---|
| 12,175–22,185 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 10.75" | 1,100 ft | 750 sx |
| 7.625" | 11,508 ft | 1,055 sx |
| 5.5" | 22,249 ft | 1,530 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 and the UL library can't be deep-linked — clicking copies the API for you to paste.
Well Details
- Well Number
- 203H
- Max Depth
- 12,500 ft
- Drill Type
- Horizontal
- County
- WINKLER
- District
- 8
- Operator
- COG OPERATING LLC
- Completed
- 2024-03-21
Operator
- Name
- COG OPER LLC
- Location
- MIDLAND
- P-5 Status
- X (filed 2026-06-02)
- Cum Oil (all leases)
- 645,285,792 bbl
- Cum Gas (all leases)
- 305,183,488 mcf
- Activities
- OPRS/G, OPRS/O
- Total Permits
- 4,554