42-173-38979

PRODUCING Horizontal

RILEY 26I

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

2024-04-04

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2023-12

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
YATES 2,164 ft+569 ft
SEVEN RIVERS 2,456 ft+277 ft
QUEEN 2,958 ft-225 ft
GRAYBURG 3,410 ft-677 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)3,724 ft-991 ft
CLEARFORK (Clear Fork)5,570 ft-2,837 ft
SPRABERRY 6,734 ft-4,001 ft
GLORIETA
RUSTLER

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
42-173-38981 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'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
42-173-38984 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
42-173-38985 RILEY 26E · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,053'Rustler 1,438'Yates 2,189'Seven Rivers 2,472'Queen 2,959'Grayburg 3,426'San Andres 3,692'Clear Fork 5,587'Spraberry 6,744'Glorieta
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
42-173-38874 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
42-173-38983 RILEY 26Z · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,052'Yates 2,193'Seven Rivers 2,471'Queen 2,952'Grayburg 3,414'San Andres 3,678'Clear Fork 5,584'Spraberry 6,732'Glorieta Rustler

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
9,173–24,831 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,288 ft1,500 sx
9.625"5,897 ft1,575 sx
5.5"24,856 ft1,850 sx

Permit History (1)

Applications (1)

#891014 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 2024-05-21
W-2/G-1 2024-05-02 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 31.774089
Lon -101.682589

Well Details

Well Number
109H
Max Depth
9,000 ft
Drill Type
Horizontal
County
GLASSCOCK
District
8
Completed
2024-04-04

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