42-003-02915

Horizontal

UNIVERSITY BLK 9/PENN/UNIT

ANDREWS County · District 8 · XTO ENERGY INC.

Permits

Max Depth

11,000 ft

First Permit

2011-01-21

Latest Activity

2019-05-15

Lifespan

8 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

ANDREWS County disposal market →

H-1 Injection Cancelled 2012-07-16 UIC #000020632 permitted 1991-08-30

Permitted Volume

5,000 bbl/d

Max Pressure

4,000 psi

Injection Interval

8,300–8,620 ft

Injected (12mo)

—

Seismicity: no M2+ earthquakes recorded within 10 km in the last 24 months · TexNet catalog

Operator History

Chain of Custody

ANADARKO PETROLEUM CORPORATION 1993-1995→ CROSS TIMBERS OPERATING COMPANY 1995-2001→ 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.

Formation Tops (4) Elevation 3,165 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
WOLFCAMP	8,465 ft	-5,300 ft
LOWER MISSISSIPPIAN LIME (Mississippian)	10,146 ft	-6,981 ft
WOODFORD SHATE (Woodford)	10,359 ft	-7,194 ft
DEVONIAN	10,444 ft	-7,279 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

✓ 42-003-38202 UNIVERSITY BLOCK 9 /PENN/ UNIT · XTO ENERGY INC.

0.3 mi

Grayburg 4,292'San Andres 4,648'Tubb 5,696'Wolfcamp 8,446'Pennsylvanian 8,780'Devonian 10,385'

✓ 42-003-38582 UNIVERSITY BLOCK 9 /PENN/ UNIT · XTO ENERGY INC.

0.4 mi

Grayburg 4,370'San Andres 4,755'SAND ANDRES 4,755'LOWR CLEARFORK 5,844'Clear Fork 5,900'Wolfcamp 8,410'Wolfcamp 8,420'Pennsylvanian 8,687'Pennsylvanian 8,786'Mississippian 9,503'Mississippian 9,924'Woodford 10,268' +4 more

✓ 42-003-38004 UNIVERSITY BLOCK 9 /PENN/ UNIT · XTO ENERGY INC.

0.6 mi

Grayburg 4,370'San Andres 4,754'Wolfcamp 8,407'Pennsylvanian 8,756'Devonian 10,336'

✓ 42-003-38438 UNIVERSITY BLOCK 9 /PENN/ UNIT · XTO ENERGY INC.

0.8 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

✓ 42-003-39646 UNIVERSITY BLOCK 9 /PENN/UNIT · XTO ENERGY INC.

1.0 mi

Grayburg 4,216'Tubb 5,631'LWR MISSISSIPPIAN 9,941'Woodford 10,274'Woodford 10,292'Devonian 10,359'Devonian 10,384'

✓ 42-003-38590 UNIVERSITY BLOCK 9 /PENN/ UNIT · XTO ENERGY INC.

1.1 mi

Grayburg 4,409'San Andres 4,830'Wolfcamp 8,429'Pennsylvanian 8,786'Mississippian 9,952'Devonian 10,388'

✓ 42-003-38160 UNIVERSITY BLOCK 9 /PENN/UNIT · XTO ENERGY INC.

1.1 mi

Grayburg 4,222'Grayburg 4,370'San Andres 4,754'Wolfcamp 8,412'Pennsylvanian 8,750'Mississippian 9,872'Mississippian 9,889'Woodford 10,203'Devonian 10,284'Devonian 10,290'Holt —LEON — +6 more

✓ 42-003-38567 UNIVERSITY BLOCK 9 /PENN/ UNIT · XTO ENERGY INC.

1.3 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

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 (5)

Interval	Type
8,514–8,570 ft	Perforated
10,425–12,766 ft	Open hole
10,460–10,538 ft	Perforated
10,577–10,600 ft	Open hole
?–10,500 ft	Perforated

Casing (6)

Size	Set Depth	Cement
13.375"	406 ft	400 sx
13.375"	407 ft	400 sx
9.625"	4,430 ft	1,100 sx
9.625"	4,430 ft	2,500 sx
7"	10,577 ft	600 sx
7"	10,577 ft	800 sx

Permit History (3)

#853067 Recompletion

UNIVERSITY BLK 9/PENN/UNIT · 10,375 ft

2019-05-15

#733820 Recompletion Final Completion

UNIVERSITY BLK 9 · 10,800 ft

2012-02-24

Spud 2012-03-28

#708746 Recompletion Final Completion

UNIVERSITY BLOCK 9 · 11,000 ft

2011-01-21

Spud 2010-12-08

Applications (3)

#853067 A XTO ENERGY INC.

received 2019-05-13

#733820 A XTO ENERGY INC.

received 2012-02-14

#708746 A XTO ENERGY INC.

received 2011-01-19

Records & Logs

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

W-2/G-1 2012-07-05 log on file

W-2/G-1 2011-06-20

W-2/G-1 1989-03-27

W-2/G-1 1984-01-12

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 32.211860

Lon -102.578628

Well Details

Well Number: 6AO
Max Depth: 11,000 ft
Drill Type: Horizontal
County: ANDREWS
District: 8
Operator: XTO ENERGY INC.

Operator

Name: XTO ENGY INC
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