42-173-38292

PRODUCING Horizontal

HOUSTON-HERZOG W12A

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

Permits

1

Max Depth

10,118 ft

First Permit

2020-02-07

Latest Activity

2020-02-07

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2020-09-06

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2020-09

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 2,647 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 728 ft+1,919 ft
RUSTLER 1,402 ft+1,245 ft
YATES 2,204 ft+443 ft
SEVEN RIVERS 2,432 ft+215 ft
QUEEN 3,071 ft-424 ft
GRAYBURG 3,538 ft-891 ft
SAN ANDRES - HIGH FLOWS, H2S, CO (San Andres)3,752 ft-1,105 ft
CLEARFORK (Clear Fork)5,853 ft-3,206 ft
SPRABERRY 6,880 ft-4,233 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
42-173-38293 HOUSTON-HERZOG W12B · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 843'Glorieta Queen Spraberry San Andres Clear Fork Grayburg Yates Rustler Seven Rivers
42-173-38294 HOUSTON-HERZOG W12C · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 747'Rustler 1,404'Yates 2,209'Seven Rivers 2,436'Queen 3,080'Grayburg 3,540'San Andres 3,757'Clear Fork 5,835'Spraberry 6,879'Spraberry 6,979'Glorieta
42-173-38296 HOUSTON-HERZOG W12E · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 743'Rustler 1,405'Yates 2,206'Seven Rivers 2,435'Queen 3,075'Grayburg 3,541'San Andres 3,755'Clear Fork 5,840'Spraberry 6,888'Glorieta
42-173-37296 HOUSTON RANCH 12-FOWLER A · PIONEER NATURAL RES. USA, INC.
0.3 mi
Santa Rosa 810'Yates 2,216'Seven Rivers 2,447'Queen 3,085'Grayburg 3,553'San Andres 3,738'Clear Fork 5,850'Spraberry 6,886'Glorieta Wichita-Albany
42-173-37299 HOUSTON RANCH 12-FOWLER A · PIONEER NATURAL RES. USA, INC.
0.3 mi
Santa Rosa 804'Yates 2,210'Seven Rivers 2,443'Queen 3,088'Grayburg 3,554'San Andres 3,760'Clear Fork 5,861'Spraberry 6,879'Wichita-Albany Glorieta
42-173-37301 HOUSTON RANCH 12-FOWLER A · PIONEER NATURAL RES. USA, INC.
0.3 mi
Santa Rosa 1,045'Yates 2,222'Seven Rivers 2,444'Queen 3,085'Grayburg 3,561'San Andres 3,768'Clear Fork 5,865'Spraberry 6,895'Wichita-Albany Glorieta
42-173-37608 HOUSTON ALLEN 12 · CROWNQUEST OPERATING, LLC
0.4 mi
Yates 2,169'Grayburg 3,680'San Andres 3,874'Glorieta 4,827'Clear Fork 5,728'Spraberry 6,867'Mississippian 10,592'Santa Rosa Queen Seven Rivers
42-173-38287 ALLEN-NEWMAN 12A · PIONEER NATURAL RES. USA, INC.
0.5 mi
Santa Rosa 826'Santa Rosa 831'Rustler 1,386'Rustler 1,449'Yates 2,187'Seven Rivers 2,429'Seven Rivers 2,440'Queen 3,054'Grayburg 3,511'San Andres 3,710'Clear Fork 5,723'Spraberry 6,862' +1 more

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
8,765–20,886 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,299 ft1,260 sx
9.625"4,958 ft1,345 sx
5.5"20,921 ft2,695 sx

Permit History (1)

Applications (1)

#860469 A PIONEER NATURAL RES. USA, INC.
received 2019-12-31

Records & Logs

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

W-2/G-1 2020-11-11
W-2/G-1 2020-10-06 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 32.034685
Lon -101.750703

Well Details

Well Number
1H
Max Depth
10,118 ft
Drill Type
Horizontal
County
GLASSCOCK
District
8
Completed
2020-09-06

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