42-317-47033

Horizontal

RICHARDS-GRISHAM 24D

MARTIN County · District 10 · PIONEER NATURAL RES. USA, INC.

Permits

Max Depth

10,240 ft

First Permit

2025-10-16

Latest Activity

2025-10-16

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Formation Tops (10) Elevation 2,787 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
SANTA ROSA	1,102 ft	+1,685 ft
YATES	2,386 ft	+401 ft
QUEEN	3,109 ft	-322 ft
GRAYBURG	3,513 ft	-726 ft
SAN ANDRES - ACTIVE CO2 FLOOD; H (San Andres)	3,810 ft	-1,023 ft
SPRABERRY	7,132 ft	-4,345 ft
CISCO	—	—
DEAN	—	—
PENNSYLVANIAN	—	—
WOLFCAMP	—	—

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

✓ 42-317-47034 RICHARDS-GRISHAM 24E · PIONEER NATURAL RES. USA, INC.

0.0 mi

Santa Rosa 1,101'Yates 2,388'Queen 3,106'Grayburg 3,511'San Andres 3,808'Clear Fork 5,876'Spraberry 7,125'Dean 8,440'Cisco —Wolfcamp —

✓ 42-317-47032 RICHARDS-GRISHAM 24C · PIONEER NATURAL RES. USA, INC.

0.0 mi

Santa Rosa 1,102'Yates 2,384'Queen 3,109'Grayburg 3,512'San Andres 3,811'Spraberry 7,139'Dean 8,464'Wolfcamp 8,649'Cisco —Pennsylvanian —

✓ 42-317-47041 RICHARDS-GRISHAM 24L · PIONEER NATURAL RES. USA, INC.

0.5 mi

Santa Rosa 1,012'Yates 2,313'Queen 3,028'Grayburg 3,422'San Andres 3,715'Spraberry 7,038'Wolfcamp —Cisco —Pennsylvanian —Dean —

✓ 42-317-46868 HEIDELBERG 30-31 P · DIAMONDBACK E&P LLC

0.9 mi

Clear Fork 5,719'Spraberry 7,006'Jo Mill 7,506'Santa Rosa —Wolfcamp —San Andres —Grayburg —Yates —Queen —Dean —

✓ 42-317-46867 HEIDELBERG 30-31 O · DIAMONDBACK E&P LLC

1.0 mi

Clear Fork 5,722'Spraberry 6,981'Jo Mill 7,499'Dean 8,326'Wolfcamp 8,521'Yates —San Andres —Queen —Santa Rosa —Cisco —Grayburg —

✓ 42-317-46866 HEIDELBERG 30-31 N · DIAMONDBACK E&P LLC

1.0 mi

Clear Fork 5,712'Spraberry 7,005'Jo Mill 7,508'Dean 8,335'Wolfcamp 8,515'San Andres —Grayburg —Santa Rosa —Cisco —Yates —Pennsylvanian —Queen —

✓ 42-317-46865 HEIDELBERG 30-31 M · DIAMONDBACK E&P LLC

1.0 mi

Clear Fork 5,708'Spraberry 6,997'Jo Mill 7,497'Yates —San Andres —Queen —Santa Rosa —Dean —Wolfcamp —Grayburg —

✓ 42-317-46852 HEIDELBERG 30-31 L · DIAMONDBACK E&P LLC

1.0 mi

Clear Fork 5,708'Spraberry 7,001'Jo Mill 7,501'Dean —Wolfcamp —Grayburg —San Andres —Yates —Queen —Santa Rosa —

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).

Casing (3)

Size	Set Depth	Cement
13.375"	1,552 ft	1,645 sx
9.625"	5,411 ft	1,535 sx
5.5"	29,548 ft	1,840 sx

Permit History (1)

#910559 Drill

RICHARDS-GRISHAM 24D · 10,240 ft

2025-10-16

Spud 2026-01-03

Applications (1)

#910559 A PIONEER NATURAL RES. USA, INC.

received 2025-09-18

Records & Logs

1 completion filing on record · 1 with log images at RRC.

W-2/G-1 2026-05-14 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.

Google Maps → Explorer Map →

Lat 32.229292

Lon -101.814389

Well Details

Well Number: 4H
Max Depth: 10,240 ft
Drill Type: Horizontal
County: MARTIN
District: 10
Operator: PIONEER NATURAL RES. USA, INC.

Operator

Name: PIONEER NATURAL RES. USA, INC
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