42-317-42888

PRODUCING Horizontal

UL COTTONFLAT A

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

Permits

1

Max Depth

13,000 ft

First Permit

2020-02-10

Latest Activity

2020-02-10

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2021-01-16

Shut-In

Plugged

P-5 Org Status: X

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2020-05

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 (13) Elevation 2,935 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YATES 2,994 ft-59 ft
QUEEN 3,660 ft-725 ft
GRAYBURG 4,061 ft-1,126 ft
SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres)4,490 ft-1,555 ft
SPRABERRY 8,295 ft-5,360 ft
CISCO
DEAN
DEVONIAN
MISSISSIPPIAN
PENNSYLVANIAN
SANTA ROSA
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 ↗

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
San Andres Queen Spraberry Santa Rosa Pennsylvanian Wolfcamp Cisco Grayburg Yates Dean
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'Pennsylvanian Cisco Santa Rosa
42-317-42889 UL COTTONFLAT B · DIAMONDBACK E&P LLC
0.0 mi
Yates 2,985'Queen 3,663'Grayburg 4,067'San Andres 4,491'Spraberry 8,298'Wolfcamp Cisco Pennsylvanian Dean 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'Wolfcamp Santa Rosa Dean
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'Dean Spraberry Santa Rosa Pennsylvanian Wolfcamp +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
0.3 mi
Grayburg 4,266'San Andres 4,782'Clear Fork 6,450'Yates Seven Rivers Glorieta Queen Holt Tubb Permian (undifferentiated)
42-003-47696 UL BLK 6 DDU A · AJAX RESOURCES, LLC
0.3 mi
Grayburg 4,266'San Andres 4,782'Clear Fork 6,455'Holt Tubb Permian (undifferentiated) Seven Rivers Yates Glorieta Queen

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
9,111–22,059 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"455 ft600 sx
9.625"8,267 ft750 sx
5.5"22,153 ft4,005 sx

Permit History (1)

Applications (1)

#861527 A DIAMONDBACK E&P LLC
received 2020-01-30

Records & Logs

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

W-2/G-1 2022-05-23 log on file
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 32.459661
Lon -102.209398

Well Details

Well Number
4101MS
Max Depth
13,000 ft
Drill Type
Horizontal
County
MARTIN
District
8
Completed
2021-01-16

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