42-317-34958

PRODUCING

GRISHAM 21

MARTIN County · District 8 · DIAMONDBACK E&P LLC · SPRABERRY (TREND AREA)

Permits

1

Max Depth

10,000 ft

First Permit

2007-07-17

Latest Activity

2007-07-17

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2007-10-18

Shut-In

Plugged

P-5 Org Status: X

!

EWA / Permit operator mismatch

Scheduling: DIAMONDBACK E&P LLC ≠ Permit: PIONEER NATURAL RES. USA, INC.

Resolved via: productionDIAMONDBACK E&P LLC

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2007-10

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 (4) Elevation 2,811 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
TOP UPPER SPRABERRY (Spraberry)7,352 ft-4,541 ft
TOP LOWER SPRABERRY (Spraberry)7,858 ft-5,047 ft
TOP DEAN (Dean)8,768 ft-5,957 ft
TOP WOLFCAMP (Wolfcamp)8,902 ft-6,091 ft

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 (4)

IntervalType
7,370–7,524 ftPerforated
8,084–8,253 ftPerforated
8,833–9,068 ftPerforated
9,120–9,777 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"395 ft300 sx
4.5"9,888 ft1,000 sx

Permit History (1)

Applications (1)

#642135 A PIONEER NATURAL RES. USA, INC.
received 2007-07-09

Records & Logs

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

W-2/G-1 2008-01-18 log on file
W-2/G-1 2008-02-06
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.

No GPS coordinates yet

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

Well Details

Well Number
1
Max Depth
10,000 ft
Drill Type
Vertical
County
MARTIN
District
8
Completed
2007-10-18

Operator

Location
MIDLAND
P-5 Status
X (filed 2026-05-04)
Cum Oil (all leases)
986,290,193 bbl
Cum Gas (all leases)
41,995,553 mcf
Activities
GTHS/C, GTHS/O, OPRS/G, OPRS/O
Total Permits
4,991