42-003-47369
PRODUCING HorizontalUL MASON EAST UNIT
ANDREWS County · District 8 · DIAMONDBACK E&P LLC · SPRABERRY (TREND AREA)
Permits
1
Max Depth
10,485 ft
First Permit
2016-06-15
Latest Activity
2016-06-15
Lifespan
< 1 yr
Regulatory Status
Schedule
ON SCHEDULE
Completion
2021-06-22
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
2017-03
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 (20) Elevation 2,952 ft (GL)
CSV| Formation | Top Depth (MD) | Subsea (+above / −below SL) |
|---|---|---|
| YATES | 3,070 ft | -118 ft |
| SEVEN RIVERS | 3,313 ft | -361 ft |
| QUEEN | 3,742 ft | -790 ft |
| GRAYBURG | 4,151 ft | -1,199 ft |
| SAN ANDRES - CO2 FLOOD, HIGH FLO (San Andres) | 4,589 ft | -1,637 ft |
| GLORIETA | 5,406 ft | -2,454 ft |
| CLEARFORK (Clear Fork) | 6,574 ft | -3,622 ft |
| SPRABERRY | 8,391 ft | -5,439 ft |
| TUBB | 8,391 ft | -5,439 ft |
| WICHITA ALBANY (Wichita-Albany) | 8,932 ft | -5,980 ft |
| CANYON | — | — |
| DEAN | — | — |
| DEVONIAN | — | — |
| FUSSELMAN | — | — |
| HOLT | — | — |
| MCKEE | — | — |
| PENNSYLVANIAN | — | — |
| PERMIAN DETRITAL (Permian (undifferentiated)) | — | — |
| STRAWN | — | — |
| WOLFCAMP | — | — |
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 |
|---|---|
| 10,334–20,540 ft | Perforated |
Casing (3)
| Size | Set Depth | Cement |
|---|---|---|
| 13.375" | 1,885 ft | 1,715 sx |
| 9.625" | 6,028 ft | 1,110 sx |
| 5.5" | 20,655 ft | 2,885 sx |
Permit History (1)
Applications (1)
Records & Logs
3 completion filings on record · 2 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.
No GPS coordinates yet
Well Details
- Well Number
- 4LS
- Max Depth
- 10,485 ft
- Drill Type
- Horizontal
- County
- ANDREWS
- District
- 8
- Operator
- DIAMONDBACK E&P LLC
- Completed
- 2021-06-22
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