42-173-37475

PRODUCING Horizontal

TOM-MILLS 48D

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

Permits

1

Max Depth

9,900 ft

First Permit

2016-10-17

Latest Activity

2016-10-17

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2018-03-10

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2017-11

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 (11) Elevation 2,652 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 774 ft+1,878 ft
SANTA ROSA 775 ft+1,877 ft
YATES 2,216 ft+436 ft
SEVEN RIVERS 2,442 ft+210 ft
QUEEN 3,091 ft-439 ft
GRAYBURG 3,586 ft-934 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)3,784 ft-1,132 ft
CLEARFORK (Clear Fork)5,884 ft-3,232 ft
SPRABERRY 6,942 ft-4,290 ft
GLORIETA
WICHITA ALBANY (Wichita-Albany)

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 ↗

Perforations (1)

IntervalType
8,740–18,762 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,259 ft1,199 sx
9.625"5,992 ft580 sx
5.5"18,792 ft1,046 sx

Permit History (1)

Applications (1)

#819270 A PIONEER NATURAL RES. USA, INC.
received 2016-10-10

Records & Logs

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

W-2/G-1 2018-05-24 log on file
W-2/G-1 2018-01-19

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.

No GPS coordinates yet

Coordinates come from the RRC GIS backfill and usually appear within days of permit issuance. Located in GLASSCOCK County.

Well Details

Well Number
4H
Max Depth
9,900 ft
Drill Type
Horizontal
County
GLASSCOCK
District
8
Completed
2018-03-10

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