42-235-36645

PRODUCING Horizontal

ROCKER B

IRION County · District 7 · PIONEER NATURAL RES. USA INC. · SPRABERRY (TREND AREA)

Permits

1

Max Depth

8,949 ft

First Permit

2024-08-23

Latest Activity

2024-08-23

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2025-06-04

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1997-04

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 2,627 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 628 ft+1,999 ft
YATES 1,127 ft+1,500 ft
QUEEN 1,496 ft+1,131 ft
GRAYBURG 1,964 ft+663 ft
SAN ANDRES 2,076 ft+551 ft
CLEARFORK (Clear Fork)3,405 ft-778 ft
SPRABERRY 4,913 ft-2,286 ft
DEAN 6,343 ft-3,716 ft
WOLFCAMP 6,492 ft-3,865 ft
CANYON
FUSSELMAN

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
42-235-36646 ROCKER B · PIONEER NATURAL RES. USA, INC.
0.0 mi
Yates 1,124'Queen 1,500'Grayburg 1,966'San Andres 2,078'San Andres 2,095'Clear Fork 3,400'Spraberry 4,861'Dean 6,335'Wolfcamp 6,486'Fusselman Canyon
42-235-36644 ROCKER B · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 628'Yates 1,121'Queen 1,496'Grayburg 1,960'San Andres 2,079'Clear Fork 3,448'Spraberry 5,007'Dean 6,347'Wolfcamp 6,492'Canyon Fusselman
42-235-36647 ROCKER B · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 628'Yates 1,123'Queen 1,491'Grayburg 1,957'San Andres 2,064'Clear Fork 3,610'Spraberry 4,992'Dean 6,331'Wolfcamp 6,475'Canyon Fusselman
42-235-36711 ROCKER B · PIONEER NATURAL RES. USA, INC.
0.0 mi
Grayburg 1,954'San Andres 2,072'Clear Fork 3,706'Spraberry 4,994'Wolfcamp 6,480'Fusselman Canyon
42-235-36712 ROCKER B · PIONEER NATURAL RES. USA, INC.
0.0 mi
Grayburg 1,950'Grayburg 1,951'San Andres 2,063'Clear Fork 3,617'Spraberry 4,992'Wolfcamp 6,481'Fusselman Canyon
42-235-36713 ROCKER B · PIONEER NATURAL RES. USA, INC.
0.0 mi
Grayburg 1,948'San Andres 2,061'Clear Fork 3,639'Spraberry 4,988'Wolfcamp 6,480'Fusselman Canyon
42-235-36714 ROCKER B · PIONEER NATURAL RES. USA, INC.
0.1 mi
Grayburg 1,954'San Andres 2,048'Clear Fork 3,590'Spraberry 4,975'Wolfcamp 6,463'Canyon Fusselman
42-235-36457 ROCKER B · PIONEER NATURAL RES. USA, INC.
1.4 mi
Grayburg 1,803'San Andres 2,075'Clear Fork 3,419'Spraberry 4,944'Wolfcamp 6,447'Fusselman Canyon

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
7,270–17,651 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"884 ft1,000 sx
9.625"5,075 ft939 sx
5.5"17,671 ft1,226 sx

Permit History (1)

Applications (1)

#902046 A PIONEER NATURAL RES. USA, INC.
received 2024-08-14

Records & Logs

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

W-2/G-1 2025-08-08
W-2/G-1 2025-02-19 log on file
Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images and the UL library can't be deep-linked — clicking copies the API for you to paste.

Lat 31.243352
Lon -101.221738

Well Details

Well Number
187H
Max Depth
8,949 ft
Drill Type
Horizontal
County
IRION
District
7
Completed
2025-06-04

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