42-329-46505

PRODUCING Horizontal

KING 18-35 UNIT 1B

MIDLAND County · District 8 · DIAMONDBACK E&P LLC · SPRABERRY (TREND AREA)

Permits

2

Max Depth

11,000 ft

First Permit

2023-09-05

Latest Activity

2023-09-05

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2024-03-07

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: productionDIAMONDBACK E&P LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2023-10

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 (19) Elevation 2,669 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 960 ft+1,709 ft
RUSTLER 1,549 ft+1,120 ft
RUSTLER 1,634 ft+1,035 ft
YATES 2,453 ft+216 ft
YATES 2,461 ft+208 ft
SEVEN RIVERS 2,680 ft-11 ft
SEVEN RIVERS 2,723 ft-54 ft
QUEEN 3,340 ft-671 ft
QUEEN 3,447 ft-778 ft
GRAYBURG 3,935 ft-1,266 ft
GRAYBURG 3,999 ft-1,330 ft
SAN ANDRES 4,646 ft-1,977 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,941 ft-2,272 ft
GLORIETA 5,611 ft-2,942 ft
CLEARFORK (Clear Fork)6,265 ft-3,596 ft
CLEARFORK (Clear Fork)6,266 ft-3,597 ft
SPRABERRY 7,226 ft-4,557 ft
SPRABERRY 7,270 ft-4,601 ft
DEAN 8,580 ft-5,911 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 ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section
42-329-46504 KING 18-35 E · ENDEAVOR ENERGY RESOURCES L.P.
0.0 mi
Santa Rosa 960'Rustler 1,545'Rustler 1,650'Yates 2,460'Yates 2,461'Seven Rivers 2,680'Seven Rivers 2,725'Queen 3,340'Queen 3,461'Grayburg 3,933'Grayburg 3,934'San Andres 4,521' +6 more
42-329-46506 KING 18-35 H · ENDEAVOR ENERGY RESOURCES L.P.
0.0 mi
Santa Rosa 960'Rustler 1,546'Rustler 1,552'Yates 2,455'Yates 2,461'Seven Rivers 2,680'Seven Rivers 2,723'Queen 3,340'Queen 3,452'Grayburg 3,930'Grayburg 3,933'San Andres 4,521' +7 more
42-329-46814 KING 18-35 UNIT 1 · ENDEAVOR ENERGY RESOURCES L.P.
0.0 mi
Santa Rosa 960'Rustler 1,543'Yates 2,452'Seven Rivers 2,720'Queen 3,388'Grayburg 3,934'San Andres 4,775'Glorieta 5,562'Clear Fork 6,381'Spraberry 7,278'
42-329-46816 KING 18-35 UNIT 1 · ENDEAVOR ENERGY RESOURCES L.P.
0.0 mi
Santa Rosa 960'Rustler 1,550'Yates 2,455'Seven Rivers 2,723'Queen 3,395'Grayburg 3,948'San Andres 4,775'Glorieta 5,552'Clear Fork 6,381'Spraberry 7,270'
42-329-46811 KING 18-35 UNIT 1B · ENDEAVOR ENERGY RESOURCES L.P.
0.0 mi
Santa Rosa 960'Rustler 1,543'Yates 2,455'Seven Rivers 2,720'Queen 3,395'Grayburg 3,941'San Andres 4,778'Glorieta 5,552'Clear Fork 6,373'Spraberry 7,266'
42-329-46810 KING 18-35 UNIT 1A · ENDEAVOR ENERGY RESOURCES L.P.
0.0 mi
Santa Rosa 960'Rustler 1,543'Yates 2,455'Seven Rivers 2,713'Queen 3,395'Grayburg 3,941'San Andres 4,772'Glorieta 5,542'Clear Fork 6,373'Spraberry 7,269'
42-329-46822 KING 18-35 UNIT 1B · ENDEAVOR ENERGY RESOURCES L.P.
0.1 mi
Santa Rosa 825'Rustler 1,550'Yates 2,460'Seven Rivers 2,675'Queen 3,400'Grayburg 3,933'San Andres 4,760'Glorieta 5,574'Clear Fork 6,385'Spraberry 7,275'
42-329-46818 KING 18-35 UNIT 1A · ENDEAVOR ENERGY RESOURCES L.P.
0.1 mi
Santa Rosa 823'Rustler 1,551'Yates 2,460'Seven Rivers 2,682'Queen 3,409'Grayburg 3,935'San Andres 4,760'Glorieta 5,583'Clear Fork 6,392'Spraberry 7,280'

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)

IntervalType
10,468–20,639 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,406 ft900 sx
9.625"9,620 ft1,355 sx
5.5"20,678 ft3,340 sx

Permit History (2)

Applications (2)

#893120 A ENDEAVOR ENERGY RESOURCES L.P.
received 2024-01-09
#893120 A ENDEAVOR ENERGY RESOURCES L.P.
received 2023-08-21

Records & Logs

2 completion filings on record · 1 with log images at RRC.

W-2/G-1 2024-04-18
W-2/G-1 2024-01-04 log on file

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.

Lat 31.968747
Lon -101.881209

Well Details

Well Number
261
Max Depth
11,000 ft
Drill Type
Horizontal
County
MIDLAND
District
8
Completed
2024-03-07

Operator

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