42-329-46766
PRODUCING HorizontalWILLIS 44-41 B
MIDLAND County · District 8 · DIAMONDBACK E&P LLC · SPRABERRY (TREND AREA)
Permits
1
Max Depth
10,493 ft
First Permit
2024-02-14
Latest Activity
2024-02-14
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2024-09-06
Shut-In
—
Plugged
—
P-5 Org Status: X
EWA / Permit operator mismatch
Scheduling: DIAMONDBACK E&P LLC ≠ Permit: ENDEAVOR ENERGY RESOURCES L.P.
Resolved via: production → DIAMONDBACK E&P 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
2024-04
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 (18) Elevation 2,704 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| SANTA ROSA | 1,000 ft | +1,704 ft |
| RUSTLER | 1,586 ft | +1,118 ft |
| YATES | 2,534 ft | +170 ft |
| SEVEN RIVERS | 2,891 ft | -187 ft |
| QUEEN | 3,648 ft | -944 ft |
| GRAYBURG | 4,111 ft | -1,407 ft |
| GRAYBURG | 4,116 ft | -1,412 ft |
| SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres) | 4,691 ft | -1,987 ft |
| SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres) | 4,934 ft | -2,230 ft |
| GLORIETA | 5,613 ft | -2,909 ft |
| GLORIETA | 5,617 ft | -2,913 ft |
| CLEARFORK (Clear Fork) | 6,582 ft | -3,878 ft |
| CLEARFORK (Clear Fork) | 6,605 ft | -3,901 ft |
| SPRABERRY | 7,439 ft | -4,735 ft |
| SPRABERRY | 7,440 ft | -4,736 ft |
| 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 |
|---|---|
| 10,939–20,830 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,352 ft | 840 sx |
| 10.75" | 7,352 ft | 1,295 sx |
| 5.5" | 20,856 ft | 2,775 sx |
Permit History (1)
Applications (1)
Records & Logs
2 completion filings 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.
Well Details
- Well Number
- 221
- Max Depth
- 10,493 ft
- Drill Type
- Horizontal
- County
- MIDLAND
- District
- 8
- Operator
- DIAMONDBACK E&P LLC
- Completed
- 2024-09-06
Operator
- Name
- DIAMONDBACK E&P LLC
- Location
- MIDLAND
- P-5 Status
- X (filed 2026-05-04)
- Cum Oil (all leases)
- 986,290,193 bbl
- Cum Gas (all leases)
- 41,995,553 mcf
- Activities
- GTHS/C, GTHS/O, OPRS/G, OPRS/O
- Total Permits
- 4,969