42-003-47817

PRODUCING Horizontal

UL MASON EAST B

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

Permits

1

Max Depth

10,412 ft

First Permit

2018-06-06

Latest Activity

2018-06-06

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2021-01-23

Shut-In

Plugged

P-5 Org Status: X

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2019-02

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 2,957 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YATES 3,083 ft-126 ft
SEVEN RIVERS 3,315 ft-358 ft
GRAYBURG 4,178 ft-1,221 ft
SAN ANDRES - CO2 FLOOD, HIGH FLO (San Andres)4,625 ft-1,668 ft
HOLT 5,290 ft-2,333 ft
GLORIETA 5,402 ft-2,445 ft
CLEARFORK (Clear Fork)6,587 ft-3,630 ft
PERMIAN DETRITAL (Permian (undifferentiated))
QUEEN
TUBB

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
42-003-47815 UL MASON EAST C · DIAMONDBACK E&P LLC
0.0 mi
Yates 3,086'Seven Rivers 3,314'Grayburg 4,180'San Andres 4,623'Holt 5,318'Glorieta 5,415'Clear Fork 6,591'Queen Tubb Permian (undifferentiated)
42-003-47814 UL MASON EAST A · DIAMONDBACK E&P LLC
0.0 mi
Yates 3,079'Seven Rivers 3,305'Grayburg 4,172'San Andres 4,611'Holt 5,304'Glorieta 5,404'Clear Fork 6,584'Strawn Fusselman Queen McKee Tubb +1 more
42-003-47818 UL MASON EAST UNIT · DIAMONDBACK E&P LLC
0.0 mi
Yates 3,085'Seven Rivers 3,306'Grayburg 4,181'San Andres 4,620'Holt 5,319'Glorieta 5,414'Clear Fork 6,604'Permian (undifferentiated) Tubb Queen
42-003-49211 UL MONTY EAST 46-32 F · DIAMONDBACK E&P LLC
0.5 mi
Yates 3,073'Grayburg 4,153'Clear Fork 6,549'Glorieta Holt Tubb Permian (undifferentiated) Queen San Andres Seven Rivers
42-003-49209 UL MONTY EAST 46-32 G · DIAMONDBACK E&P LLC
0.5 mi
Yates 3,073'Grayburg 4,150'Clear Fork 6,551'Glorieta Holt Tubb Queen San Andres Seven Rivers Permian (undifferentiated)
42-003-49216 UL MONTY EAST 46-32 H · DIAMONDBACK E&P LLC
0.5 mi
Rustler 2,114'Yates 3,074'Grayburg 4,155'San Andres 4,614'Clear Fork 6,549'Queen Holt Seven Rivers Glorieta Tubb
42-003-49213 UL MONTY EAST 46-32 E · DIAMONDBACK E&P LLC
0.5 mi
Yates 3,077'Grayburg 4,162'San Andres 4,625'Clear Fork 6,561'Tubb Queen Permian (undifferentiated) Holt Seven Rivers Glorieta
42-003-49214 UL MONTY EAST 46-32 C · DIAMONDBACK E&P LLC
0.5 mi
Rustler 2,138'Yates 3,077'Grayburg 4,163'San Andres 4,626'Clear Fork 6,568'Tubb Holt Seven Rivers 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
10,013–17,678 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,875 ft2,870 sx
9.625"7,018 ft1,943 sx
5.5"17,780 ft2,705 sx

Permit History (1)

Applications (1)

#839862 A DIAMONDBACK E&P LLC
received 2018-05-09

Records & Logs

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

W-2/G-1 2021-04-07 log on file
W-2/G-1 2019-05-23 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 32.445158
Lon -102.227347

Well Details

Well Number
14LS
Max Depth
10,412 ft
Drill Type
Horizontal
County
ANDREWS
District
8
Completed
2021-01-23

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
5,075