42-317-43545

PRODUCING Horizontal

WELCH-COX W39G

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

Permits

1

Max Depth

10,606 ft

First Permit

2021-06-08

Latest Activity

2021-06-08

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2023-02-03

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2023-02

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 2,836 ft (KB)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA 1,266 ft+1,570 ft
YATES 2,608 ft+228 ft
QUEEN 3,472 ft-636 ft
GRAYBURG 3,924 ft-1,088 ft
SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres)4,128 ft-1,292 ft
SPRABERRY 7,553 ft-4,717 ft
DEAN 8,855 ft-6,019 ft
WOLFCAMP 9,067 ft-6,231 ft
CISCO
PENNSYLVANIAN

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
42-317-43543 WELCH-COX W39F · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,266'Yates 2,609'Queen 3,470'Grayburg 3,920'San Andres 4,130'Spraberry 7,558'Dean 8,859'Wolfcamp 9,069'Cisco Pennsylvanian
42-317-43563 WELCH-COX W39H · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,266'Yates 2,608'Queen 3,469'Grayburg 3,921'San Andres 4,128'Spraberry 7,548'Dean 8,852'Wolfcamp 9,060'Cisco Pennsylvanian
42-317-43558 WELCH-COX W39I · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,266'Yates 2,608'Queen 3,472'Grayburg 3,947'San Andres 4,158'Spraberry 7,546'Dean 8,848'Wolfcamp 9,060'Pennsylvanian Cisco
42-317-43561 WELCH-COX W39J · PIONEER NATURAL RES. USA, INC.
0.0 mi
Santa Rosa 1,266'Yates 2,605'Queen 3,474'Grayburg 3,924'San Andres 4,130'Spraberry 7,542'Dean 8,850'Wolfcamp 9,061'Cisco Pennsylvanian
42-317-43542 WELCH-COX W39L · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 1,266'Yates 2,617'Queen 3,479'Grayburg 3,965'San Andres 4,149'Spraberry 7,564'Cisco Dean Wolfcamp Pennsylvanian
42-317-43544 WELCH-COX W39M · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 1,266'Yates 2,617'Queen 3,480'Grayburg 3,968'San Andres 4,143'Spraberry 7,556'Wolfcamp Pennsylvanian Cisco Dean
42-317-43541 WELCH-COX W39K · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 1,266'Yates 2,613'Queen 3,477'Grayburg 3,956'San Andres 4,152'Spraberry 7,562'Dean Cisco Wolfcamp Pennsylvanian
42-317-43556 WELCH-COX W39N · PIONEER NATURAL RES. USA, INC.
0.1 mi
Santa Rosa 1,266'Yates 2,619'Queen 3,481'Grayburg 3,953'San Andres 4,146'Spraberry 7,557'Dean Pennsylvanian Wolfcamp PRECAMBRIAN (UNDIFFERENTIATED) Cisco Ellenburger

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
9,260–19,339 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"1,710 ft1,750 sx
9.625"5,514 ft1,353 sx
5.5"19,364 ft1,067 sx

Permit History (1)

Applications (1)

#869582 A PIONEER NATURAL RES. USA, INC.
received 2021-05-04

Records & Logs

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

W-2/G-1 2023-04-11
W-2/G-1 2023-03-08 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 32.259024
Lon -101.946905

Well Details

Well Number
207H
Max Depth
10,606 ft
Drill Type
Horizontal
County
MARTIN
District
8
Completed
2023-02-03

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