42-329-45923

PRODUCING Horizontal

CASS-COUNTISS 20O

MIDLAND County · District 8 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA)

Permits

2

Max Depth

10,391 ft

First Permit

2022-10-13

Latest Activity

2022-10-13

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2023-12-26

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2023-06

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 2,845 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 1,147 ft+1,698 ft
RUSTLER 1,737 ft+1,108 ft
YATES 2,792 ft+53 ft
SEVEN RIVERS 3,110 ft-265 ft
QUEEN 3,909 ft-1,064 ft
GRAYBURG 4,436 ft-1,591 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)4,620 ft-1,775 ft
CLEARFORK (Clear Fork)7,017 ft-4,172 ft
SPRABERRY 7,870 ft-5,025 ft
GLORIETA

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
42-329-45926 CASS-COUNTISS 20C · PIONEER NATURAL RES. USA, INC.
0.2 mi
Santa Rosa 1,151'Rustler 1,741'Yates 2,801'Seven Rivers 3,113'Seven Rivers 3,133'Queen 3,916'Grayburg 4,443'San Andres 4,644'Clear Fork 7,022'Spraberry 7,862'Spraberry 7,865'Glorieta
42-329-45927 CASS-COUNTISS 20D · PIONEER NATURAL RES. USA, INC.
0.2 mi
Santa Rosa 1,151'Rustler 1,741'Yates 2,796'Seven Rivers 3,112'Queen 3,920'Grayburg 4,445'San Andres 4,641'Clear Fork 7,017'Spraberry 7,863'Glorieta
42-329-44382 GARRETT A · ENDEAVOR ENERGY RESOURCES L.P.
0.2 mi
Rustler 1,740'Yates 2,790'Seven Rivers 3,103'Queen 3,859'Grayburg 4,467'San Andres 4,886'Glorieta 5,935'Clear Fork 7,042'Spraberry 8,766'Spraberry 9,154'
42-329-45928 CASS-COUNTISS 20E · PIONEER NATURAL RES. USA, INC.
0.2 mi
Santa Rosa 1,151'Rustler 1,741'Yates 2,797'Seven Rivers 3,114'Queen 3,915'Grayburg 4,442'San Andres 4,638'Clear Fork 7,018'Spraberry 7,867'Canyon Wolfcamp Strawn +6 more
42-329-44385 GARRETT A · ENDEAVOR ENERGY RESOURCES L.P.
0.2 mi
Santa Rosa 1,137'Rustler 1,740'Yates 2,808'Seven Rivers 3,162'Queen 3,734'Grayburg 4,183'San Andres 4,937'Glorieta 5,937'Clear Fork 6,995'Spraberry 8,771'
42-329-45931 CASS-COUNTISS 20J · PIONEER NATURAL RES. USA, INC.
0.2 mi
Santa Rosa 1,147'Rustler 1,737'Yates 2,789'Seven Rivers 3,115'Queen 3,908'Grayburg 4,433'San Andres 4,625'Clear Fork 7,023'Spraberry 7,867'Glorieta
42-329-45932 CASS-COUNTISS 20K · PIONEER NATURAL RES. USA, INC.
0.2 mi
Santa Rosa 1,147'Rustler 1,737'Yates 2,796'Seven Rivers 3,129'Queen 3,911'Grayburg 4,435'San Andres 4,632'Clear Fork 7,017'Spraberry 7,869'Glorieta
42-329-45933 CASS-COUNTISS 20L · PIONEER NATURAL RES. USA, INC.
0.2 mi
Santa Rosa 1,147'Rustler 1,737'Yates 2,787'Seven Rivers 3,117'Queen 3,907'Grayburg 4,428'San Andres 4,613'Clear Fork 7,026'Spraberry 7,870'Glorieta

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
9,907–20,088 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,644 ft1,800 sx
9.625"6,173 ft1,455 sx
5.5"20,113 ft1,200 sx

Permit History (2)

Applications (2)

#883873 A PIONEER NATURAL RES. USA, INC.
received 2022-12-08
#883873 A PIONEER NATURAL RES. USA, INC.
received 2022-09-12

Records & Logs

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

W-2/G-1 2024-03-04
W-2/G-1 2023-11-01 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 31.931742
Lon -102.107867

Well Details

Well Number
15H
Max Depth
10,391 ft
Drill Type
Horizontal
County
MIDLAND
District
8
Completed
2023-12-26

Operator

Location
Y SPRING
P-5 Status
Active (filed 2025-08-01)
Cum Oil (all leases)
1,771,882,421 bbl
Cum Gas (all leases)
1,763,727,021 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
15,400