42-329-44708
SHUT IN HorizontalJW B
MIDLAND County · District 8 · DISCOVERY OPERATING INC. · SPRABERRY (TREND AREA)
Permits
2
Max Depth
11,000 ft
First Permit
2021-03-08
Latest Activity
2021-03-08
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2021-10-09
Shut-In
—
Plugged
—
P-5 Org Status: Active
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
2020-12
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 2,823 ft (GR)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 2,774 ft | +49 ft |
| SEVEN RIVERS | 2,949 ft | -126 ft |
| QUEEN | 3,698 ft | -875 ft |
| GRAYBURG | 4,198 ft | -1,375 ft |
| SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres) | 4,340 ft | -1,517 ft |
| GLORIETA | 5,790 ft | -2,967 ft |
| CLEARFORK (Clear Fork) | 6,952 ft | -4,129 ft |
| SPRABERRY | 7,805 ft | -4,982 ft |
| RUSTLER | — | — |
| SANTA ROSA | — | — |
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 |
|---|---|
| 8,574–18,435 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 416 ft | 440 sx |
| 9.625" | 8,377 ft | 2,275 sx |
| 5.5" | 18,534 ft | 1,620 sx |
Permit History (2)
Applications (2)
Records & Logs
2 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.
Well Details
- Well Number
- 421MS
- Max Depth
- 11,000 ft
- Drill Type
- Horizontal
- County
- MIDLAND
- District
- 8
- Operator
- DISCOVERY OPERATING INC.
- Completed
- 2021-10-09
Operator
- Name
- DISCOVERY OPER, INC
- Location
- MIDLAND
- P-5 Status
- Active (filed 2026-03-31)
- Cum Oil (all leases)
- 41,497,911 bbl
- Cum Gas (all leases)
- 33,774,384 mcf
- Activities
- GTHS/G, OPRS/G, OPRS/O
- Total Permits
- 712