← Wells

42-003-38501

HorizontalSidetrack

UNIVERSITY BLOCK 9 /PENN/UNIT

ANDREWS County · District 8 · XTO ENERGY INC.

Permits

4

Max Depth

10,700 ft

First Permit

1999-07-29

Latest Activity

2023-03-21

Lifespan

24 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1998-11

Last Production

2026-07

Operator History

Chain of Custody

CROSS TIMBERS OPERATING COMPANY 1998-2001→ XTO ENERGY INC. 2001-2026

Lease Production

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

Oil
production & DCA →
Oil
production & DCA →

Formation Tops (10) Elevation 3,148 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
GRAYBURG 4,600 ft-1,452 ft
SAN ANDRES 4,925 ft-1,777 ft
TUBB 6,010 ft-2,862 ft
WOLFCAMP 8,390 ft-5,242 ft
PENN (Pennsylvanian)8,745 ft-5,597 ft
MISSISSIPPIAN (NON-PRODUCTIVE) (Mississippian)9,906 ft-6,758 ft
WOODFORD SHALE (NON-PRODUCTIVE) (Woodford)10,250 ft-7,102 ft
DEVONIAN 10,311 ft-7,163 ft
DEVOINIAN10,330 ft-7,182 ft
DEVONIAN 10,330 ft-7,182 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 ↗

Offset Well Tops (nearest 8 wells with tops)

What nearby completed wells reported.

Cross-section
✓ 42-003-38715 UNIVERSITY BLOCK 9 WOLFCAMP UNIT · XTO ENERGY INC.
0.4 mi
Rustler 1,940'Grayburg 4,435'San Andres 4,869'Wolfcamp 8,424'Pennsylvanian 8,776'DEVONION 10,418'Devonian 10,418'
✓ 42-003-38567 UNIVERSITY BLOCK 9 /PENN/ UNIT · XTO ENERGY INC.
0.5 mi
Yates 3,177'Queen 4,043'Grayburg 4,299'Grayburg 4,426'San Andres 4,670'San Andres 4,828'San Andres 4,828'Glorieta 5,855'Tubb 5,858'Tubb 6,409'Wichita-Albany 7,552'Wolfcamp 8,175' +8 more
✓ 42-003-38590 UNIVERSITY BLOCK 9 /PENN/ UNIT · XTO ENERGY INC.
0.7 mi
Grayburg 4,409'San Andres 4,830'Wolfcamp 8,429'Pennsylvanian 8,786'Mississippian 9,952'Devonian 10,388'
✓ 42-003-38263 UNIVERSITY BLOCK 9 /PENN/ UNIT · XTO ENERGY INC.
0.8 mi
San Andres 4,724'Wolfcamp 8,368'Wolfcamp 8,379'Pennsylvanian 8,688'Pennsylvanian 8,722'Devonian 10,245'Devonian 10,299'
✓ 42-003-38438 UNIVERSITY BLOCK 9 /PENN/ UNIT · XTO ENERGY INC.
0.9 mi
Grayburg 4,592'San Andres 4,917'Tubb 6,052'Clear Fork 6,102'LO. CLEARFORK 6,102'LO CLEARFORK 6,102'Wolfcamp 8,402'Pennsylvanian 8,780'Mississippian 9,907'Mississippian 9,910'Woodford 10,250'Woodford 10,250' +4 more
✓ 42-003-38661 UNIVERSITY BLOCK 9 /PENN/ UNIT · XTO ENERGY INC.
0.9 mi
Grayburg 4,359'San Andres 4,759'Tubb 5,717'Wolfcamp 8,368'Pennsylvanian 8,688'Devonian 10,245'
✓ 42-003-47919 UNIVERSITY BLOCK 9 G MS · XTO ENERGY INC.
1.0 mi
Yates 3,211'Seven Rivers 3,516'Queen 4,196'Grayburg 4,585'San Andres 4,931'Glorieta 6,352'Clear Fork 6,437'Permian (undifferentiated) —Tubb —Holt —
✓ 42-003-36923 UNIVERSITY BLOCK 9 /PENN/UNIT · XTO ENERGY INC.
1.0 mi
San Andres 4,720'Wolfcamp 8,375'Canyon 8,915'Strawn 9,035'Devonian 10,225'

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 (9)

IntervalType
10,030–12,424 ftPerforated
10,030–12,424 ftOpen hole
10,287–11,996 ftPerforated
10,287–11,996 ftOpen hole
10,320–10,350 ftPerforated
10,320–10,600 ftPerforated
10,366–11,996 ftPerforated
10,366–11,996 ftOpen hole
10,552–10,560 ftPerforated

Casing (3)

SizeSet DepthCement
13.375"310 ft375 sx
8.625"5,200 ft1,060 sx
5.5"10,721 ft765 sx

Permit History (4)

#886890 Recompletion

UNIVERSITY BLOCK 9 /PENN/UNIT · 10,271 ft

2023-03-21

#658302 Recompletion Final Completion

UNIVERSITY 9 CEC · 10,600 ft

2008-04-24

Spud 2008-04-18

#501829 Recompletion Final Completion

UNIVERSITY 9 CEC · 10,700 ft

2000-11-10

Spud 2001-01-03

#485977 Drill Final Completion

UNIVERSITY 9 CEC · 10,700 ft

1999-07-29

Spud 1999-08-03

Applications (4)

#886890 A XTO ENERGY INC.
received 2022-12-29
#658302 A XTO ENERGY INC.
received 2008-03-27
#501829 A CROSS TIMBERS OPERATING COMPANY
received 2000-11-10
#485977 A CROSS TIMBERS OPERATING COMPANY
received 1999-07-19

Records & Logs

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

W-2/G-1 2016-09-13
W-2/G-1 2009-02-10
W-2/G-1 2008-03-28
W-2/G-1 2008-03-28
W-2/G-1 2001-03-01
W-2/G-1 1999-10-15 log on file

+2 more filings

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 32.192660
Lon -102.559533

Well Details

Well Number
7EC
Max Depth
10,700 ft
Drill Type
Horizontal, Sidetrack
County
ANDREWS
District
8
Operator
XTO ENERGY INC.

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