42-173-38985

PRODUCING Horizontal

RILEY 26E

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

Permits

1

Max Depth

9,000 ft

First Permit

2023-07-05

Latest Activity

2023-07-05

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2024-03-31

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2023-09

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 2,733 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 1,053 ft+1,680 ft
RUSTLER 1,438 ft+1,295 ft
YATES 2,189 ft+544 ft
SEVEN RIVERS 2,472 ft+261 ft
QUEEN 2,959 ft-226 ft
GRAYBURG 3,426 ft-693 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)3,692 ft-959 ft
CLEARFORK (Clear Fork)5,587 ft-2,854 ft
SPRABERRY 6,744 ft-4,011 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
42-173-38986 RILEY 26D · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,053'Yates 2,193'Seven Rivers 2,475'Queen 2,965'Grayburg 3,425'San Andres 3,729'Clear Fork 5,593'Spraberry 6,763'Glorieta Rustler
42-173-38984 RILEY 26F · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,053'Yates 2,191'Seven Rivers 2,472'Queen 2,968'Grayburg 3,424'San Andres 3,735'Clear Fork 5,581'Spraberry 6,733'Glorieta Rustler
42-173-38982 RILEY 26G · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,053'Yates 2,185'Seven Rivers 2,470'Queen 2,963'Grayburg 3,418'San Andres 3,730'Clear Fork 5,570'Spraberry 6,747'Glorieta Rustler
42-173-38981 RILEY 26H · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,053'Yates 2,185'Seven Rivers 2,469'Queen 2,954'Grayburg 3,420'San Andres 3,686'Clear Fork 5,572'Spraberry 6,739'Rustler Glorieta
42-173-38979 RILEY 26I · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,053'Yates 2,164'Seven Rivers 2,456'Queen 2,958'Grayburg 3,410'San Andres 3,724'Clear Fork 5,570'Spraberry 6,734'Rustler Glorieta
42-173-38874 TROPICANA WEST 23-14Y · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 783'Rustler 1,338'Yates 2,192'Seven Rivers 2,473'Queen 2,961'Grayburg 3,427'San Andres 3,702'Clear Fork 5,590'Spraberry 6,750'Glorieta
42-173-38873 TROPICANA WEST 23-14X · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 818'Rustler 1,338'Yates 2,197'Seven Rivers 2,474'Queen 2,985'Grayburg 3,437'San Andres 3,707'Clear Fork 5,620'Spraberry 6,751'Glorieta
42-173-38872 TROPICANA WEST 23-14W · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 818'Rustler 1,338'Yates 2,191'Seven Rivers 2,479'Queen 2,978'Grayburg 3,440'San Andres 3,721'Clear Fork 5,583'Spraberry 6,754'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
8,203–23,861 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,289 ft1,500 sx
9.625"5,787 ft1,675 sx
5.5"23,886 ft1,490 sx

Permit History (1)

Applications (1)

#891009 A PIONEER NATURAL RES. USA, INC.
received 2023-05-31

Records & Logs

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

W-2/G-1 2024-06-11
W-2/G-1 2024-02-02 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 31.774030
Lon -101.682836

Well Details

Well Number
105H
Max Depth
9,000 ft
Drill Type
Horizontal
County
GLASSCOCK
District
8
Completed
2024-03-31

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
15,399