42-317-34954

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STUBBLEFIELD 26

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

Permits

1

Max Depth

10,500 ft

First Permit

2007-07-16

Latest Activity

2007-07-16

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2025-11-01

Shut-In

Plugged

P-5 Org Status: Active

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

2008-01

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 (7) Elevation 2,688 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
TOP UPPER SPRABERRY (Spraberry)7,242 ft-4,554 ft
UPPER SPRABERRY (Spraberry)7,424 ft-4,736 ft
LOWER SPRABERRY (Spraberry)7,756 ft-5,068 ft
TOP LOWER SPRABERRY (Spraberry)7,756 ft-5,068 ft
DEAN 8,572 ft-5,884 ft
TOP DEAN (Dean)8,572 ft-5,884 ft
BASE DEAN (Dean)8,798 ft-6,110 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 (6)

IntervalType
7,261–7,324 ftPerforated
7,989–8,166 ftPerforated
8,642–8,768 ftPerforated
8,849–9,073 ftPerforated
9,161–9,251 ftPerforated
9,315–9,466 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"321 ft300 sx
4.5"10,156 ft1,000 sx

Permit History (1)

Applications (1)

#642042 A PIONEER NATURAL RES. USA, INC.
received 2007-07-06

Records & Logs

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

W-2/G-1 2026-04-08
W-2/G-1 2008-02-15 log on file
W-2/G-1 2008-05-13
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
10,500 ft
Drill Type
Vertical
County
MARTIN
District
8
Completed
2025-11-01

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
15,423