42-317-42889

PRODUCING Horizontal

UL COTTONFLAT B

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

Permits

1

Max Depth

13,000 ft

First Permit

2020-02-06

Latest Activity

2020-02-06

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2022-09-29

Shut-In

Plugged

P-5 Org Status: X

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2020-04

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 2,935 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YATES 2,985 ft-50 ft
QUEEN 3,663 ft-728 ft
GRAYBURG 4,067 ft-1,132 ft
SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres)4,491 ft-1,556 ft
SPRABERRY 8,298 ft-5,363 ft
CISCO
DEAN
PENNSYLVANIAN
SANTA ROSA
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 ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section
42-317-42890 UL COTTONFLAT D · DIAMONDBACK E&P LLC
0.0 mi
Spraberry San Andres Pennsylvanian Wolfcamp Grayburg Yates Dean Queen Santa Rosa Cisco
42-317-42888 UL COTTONFLAT A · DIAMONDBACK E&P LLC
0.0 mi
Yates 2,994'Queen 3,660'Grayburg 4,061'San Andres 4,490'Spraberry 8,295'Wolfcamp Santa Rosa Devonian Pennsylvanian Cisco Strawn Dean +1 more
42-317-42891 UL COTTONFLAT C · DIAMONDBACK E&P LLC
0.0 mi
Yates 2,996'Queen 3,659'Grayburg 4,062'San Andres 4,491'Spraberry 8,291'Dean 9,541'Wolfcamp 9,744'Cisco Pennsylvanian Santa Rosa
42-317-42979 UL COTTONFLAT E · DIAMONDBACK E&P LLC
0.1 mi
Yates 3,205'Queen 3,665'Grayburg 4,057'San Andres 4,478'Glorieta 5,588'Clear Fork 6,409'Spraberry 8,283'Dean Wolfcamp Santa Rosa
42-317-42980 UL COTTONFLAT F · DIAMONDBACK E&P LLC
0.1 mi
Yates 2,994'Seven Rivers 3,202'Queen 3,657'Grayburg 4,057'San Andres 4,477'Glorieta 5,588'Spraberry 8,285'Pennsylvanian Spraberry Santa Rosa Wolfcamp Cisco +1 more
42-317-42981 UL COTTONFLAT G · DIAMONDBACK E&P LLC
0.1 mi
Yates 2,989'Seven Rivers 3,206'Queen 3,655'Grayburg 4,055'San Andres 4,476'Glorieta 5,588'Spraberry 8,286'Dean 9,526'Wolfcamp 9,730'Cisco Pennsylvanian Santa Rosa
42-003-47697 UL BLK 6 DDU A · AJAX RESOURCES, LLC
0.2 mi
Grayburg 4,266'San Andres 4,782'Clear Fork 6,450'Permian (undifferentiated) Seven Rivers Holt Tubb Yates Glorieta Queen
42-003-47696 UL BLK 6 DDU A · AJAX RESOURCES, LLC
0.2 mi
Grayburg 4,266'San Andres 4,782'Clear Fork 6,455'Yates Seven Rivers Glorieta Queen Holt Tubb Permian (undifferentiated)

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
9,859–17,545 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"455 ft643 sx
9.625"8,902 ft900 sx
5.5"17,633 ft2,760 sx

Permit History (1)

Applications (1)

#861528 A DIAMONDBACK E&P LLC
received 2020-01-30

Records & Logs

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

W-2/G-1 2023-02-15 log on file
W-2/G-1 2022-05-23
W-2/G-1 2021-10-11
W-2/G-1 2021-05-05
W-2/G-1 2021-01-07 log on file
Completion packets + logs ↗ Wellbore filings ↗

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.

Lat 32.459616
Lon -102.209584

Well Details

Well Number
4101LS
Max Depth
13,000 ft
Drill Type
Horizontal
County
MARTIN
District
8
Completed
2022-09-29

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