← Wells

42-173-33772

PRODUCING

BLALOCK -33-

GLASSCOCK County · District 8 · XTO ENERGY INC. · SPRABERRY (TREND AREA)

Permits

1

Max Depth

11,000 ft

First Permit

2010-08-27

Latest Activity

2010-08-27

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2012-10-10

Shut-In

—

Plugged

—

P-5 Org Status: X

!

EWA / Permit operator mismatch

Scheduling: XTO ENERGY INC. ≠ Permit: PIEDRA OPERATING, LLC

Resolved via: production → XTO ENERGY INC.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

2011-01

Last Production

2026-07

Operator History

Chain of Custody

PIEDRA OPERATING, LLC 2011-2011→ ROCA OPERATING, INC. 2011-2012→ BERRY OIL COMP. 2012-2014→ LINN OPERATING, INC. 2014-2014→ XTO ENERGY INC. 2014-2026

Lease Production

Production is reported at the lease level. View production data, decline curves, and history on the lease page.

Oil
production & DCA →

Formation Tops (4) Elevation 2,551 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SPRABERRY 6,695 ft-4,144 ft
DEAN 7,905 ft-5,354 ft
WOLFCAMP 8,093 ft-5,542 ft
POWELL (PENN)10,004 ft-7,453 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 (1)

IntervalType
8,350–10,651 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"322 ft350 sx
8.625"5,200 ft1,300 sx
5.5"10,990 ft1,200 sx

Permit History (1)

#701205 Drill Final Completion

BLALOCK 33 · 11,000 ft

2010-08-27

Spud 2010-09-28

Applications (1)

#701205 A PIEDRA OPERATING, LLC
received 2010-08-25

Records & Logs

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

W-2/G-1 2013-05-22
W-2/G-1 2011-01-19 log on file
Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images 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 GLASSCOCK County.

Well Details

Well Number
4
Max Depth
11,000 ft
Drill Type
Vertical
County
GLASSCOCK
District
8
Operator
XTO ENERGY INC.
Completed
2012-10-10

Operator

Location
SPRING
P-5 Status
X (filed 2026-04-08)
Cum Oil (all leases)
772,419,164 bbl
Cum Gas (all leases)
11,039,899,986 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
16,138