42-003-38963

Final Completion Horizontal

UNIVERSITY 9 CEC

ANDREWS County · District 8 · XTO ENERGY INC. · UNIVERSITY BLOCK 9 (DEVONIAN)

Permits

Max Depth

11,500 ft

First Permit

2002-05-02

Latest Activity

2010-07-29

Lifespan

8 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

2002-08-09

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.

Formation Tops (8) Elevation 3,148 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
RUSTLER	1,976 ft	+1,172 ft
YATES	3,215 ft	-67 ft
GRAYBURG	4,426 ft	-1,278 ft
WOLFCAMP	8,398 ft	-5,250 ft
PENN (Pennsylvanian)	8,766 ft	-5,618 ft
LWR MISSISSIPPIAN	9,956 ft	-6,808 ft
WOODFORD SHALE (Woodford)	10,316 ft	-7,168 ft
DEVONIAN	10,385 ft	-7,237 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)

Interval	Type
10,191–11,943 ft	Perforated
10,191–11,943 ft	Open hole
10,396–10,594 ft	Perforated
10,403–12,353 ft	Open hole

Casing (3)

Size	Set Depth	Cement
13.375"	307 ft	375 sx
8.625"	5,208 ft	1,130 sx
5.5"	10,806 ft	830 sx

Permit History (3)

#699718 Recompletion Final Completion

UNIVERSITY BLOCK 9 · 11,500 ft

2010-07-29

Spud 2010-08-06

#658096 Recompletion Final Completion

UNIVERSITY 9 CEC · 10,600 ft

2008-04-09

Spud 2008-03-17

#519616 Drill Final Completion

UNIVERSITY 9 CEC · 10,800 ft

2002-05-02

Spud 2002-05-18

Applications (3)

#699718 A XTO ENERGY INC.

received 2010-07-27

#658096 A XTO ENERGY INC.

received 2008-03-25

#519616 A XTO ENERGY INC.

received 2002-05-02

Records & Logs

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

W-2/G-1 2010-11-15 log on file

W-2/G-1 2009-02-13

W-2/G-1 2002-08-27 log on file

W-2/G-1 2002-09-12

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.

No GPS coordinates yet

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

Well Details

Well Number: 11EC
Max Depth: 11,500 ft
Drill Type: Horizontal
County: ANDREWS
District: 8
Operator: XTO ENERGY INC.
Completed: 2002-08-09

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