42-329-47131

SHUT IN Horizontal

MASK HZ UNIT

MIDLAND County · District 10 · COG OPERATING LLC · SPRABERRY (TREND AREA)

Permits

1

Max Depth

11,000 ft

First Permit

2024-06-24

Latest Activity

2024-06-24

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2025-09-27

Shut-In

Plugged

P-5 Org Status: X

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2016-06

Last Production

2026-07

Operator History

Chain of Custody

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Formation Tops (10) Elevation 2,811 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 1,157 ft+1,654 ft
RUSTLER 1,854 ft+957 ft
YATES 2,830 ft-19 ft
SEVEN RIVERS 3,198 ft-387 ft
QUEEN 3,590 ft-779 ft
GRAYBURG 4,065 ft-1,254 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,593 ft-1,782 ft
GLORIETA 5,671 ft-2,860 ft
CLEARFORK (Clear Fork)6,968 ft-4,157 ft
SPRABERRY 7,885 ft-5,074 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
42-329-47132 MASK HZ UNIT · COG OPERATING LLC
0.0 mi
Santa Rosa 1,157'Rustler 1,854'Yates 2,829'Seven Rivers 3,197'Queen 3,589'Grayburg 4,063'San Andres 4,593'Glorieta 5,669'Clear Fork 6,966'Spraberry 7,884'
42-329-47129 MASK HZ UNIT · COG OPERATING LLC
0.0 mi
Santa Rosa 1,157'Rustler 1,854'Yates 2,828'Seven Rivers 3,197'Queen 3,589'Grayburg 4,063'San Andres 4,593'Glorieta 5,665'Clear Fork 6,959'Spraberry 7,880'
42-329-47127 MASK HZ UNIT · COG OPERATING LLC
0.0 mi
Santa Rosa 1,157'Rustler 1,854'Yates 2,826'Seven Rivers 3,194'Queen 3,585'Grayburg 4,058'San Andres 4,592'Glorieta 5,658'Clear Fork 6,950'Spraberry 7,876'
42-329-47128 MASK HZ UNIT · COG OPERATING LLC
0.1 mi
Santa Rosa 1,157'Rustler 1,854'Yates 2,826'Seven Rivers 3,194'Queen 3,586'Grayburg 4,058'San Andres 4,592'Glorieta 5,659'Clear Fork 6,952'Spraberry 7,877'
42-329-42112 MASK HZ UNIT · RSP PERMIAN, LLC
0.1 mi
Santa Rosa 1,116'Yates 2,829'Seven Rivers 3,080'Queen 3,907'Grayburg 4,037'San Andres 4,636'Glorieta 5,685'Clear Fork 6,950'Spraberry 7,874'Spraberry 9,148'
42-329-42109 MASK HZ UNIT · RSP PERMIAN, LLC
0.1 mi
Santa Rosa 1,135'Yates 2,832'Seven Rivers 3,088'Queen 3,907'Grayburg 4,037'San Andres 4,638'Glorieta 5,683'Clear Fork 6,960'Spraberry 7,882'Spraberry 9,152'
42-329-47125 MASK HZ UNIT · COG OPERATING LLC
0.1 mi
Santa Rosa 1,154'Rustler 1,850'Yates 2,824'Seven Rivers 3,191'Queen 3,583'Grayburg 4,055'San Andres 4,591'Glorieta 5,656'Clear Fork 6,947'PRECAMBRIAN (UNDIFFERENTIATED)
42-329-47126 MASK HZ UNIT · COG OPERATING LLC
0.1 mi
Santa Rosa 1,153'Rustler 1,849'Yates 2,823'Seven Rivers 3,191'Queen 3,582'Grayburg 4,054'San Andres 4,591'Glorieta 5,654'Clear Fork 6,945'Spraberry 7,874'

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).

Casing (3)

SizeSet DepthCement
13.375"1,585 ft1,200 sx
8.625"5,826 ft1,005 sx
5.5"19,134 ft1,905 sx

Permit History (1)

Applications (1)

#900620 A COG OPERATING LLC
received 2024-06-19

Records & Logs

1 completion filing on record · 1 with log images at RRC.

W-2/G-1 2026-02-18 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 32.067222
Lon -102.111134

Well Details

Well Number
1008JH
Max Depth
11,000 ft
Drill Type
Horizontal
County
MIDLAND
District
10
Completed
2025-09-27

Operator

Location
MIDLAND
P-5 Status
X (filed 2026-06-02)
Cum Oil (all leases)
645,285,792 bbl
Cum Gas (all leases)
305,183,488 mcf
Activities
OPRS/G, OPRS/O
Total Permits
4,547