42-461-32586

Final Completion

PEGASUS ELLENBURGER UNIT

UPTON County · District 7 · XTO ENERGY INC. · PEGASUS (ELLENBURGER)

Permits

Max Depth

13,500 ft

First Permit

1986-07-07

Latest Activity

1996-01-26

Lifespan

10 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1986-12-31

Shut-In

—

Plugged

—

EWA / Permit operator mismatch

Scheduling: XTO ENERGY INC. ≠ Permit: MOBIL PRODUCING TX. & N.M. INC.

Resolved via: scheduling → XTO ENERGY INC.

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

UPTON County disposal market →

H-1 Injection Cancelled 1996-12-31 UIC #000068756 permitted 1989-04-11

Permitted Volume

8,000 mcf/d

Max Pressure

—

Injection Interval

12,720–13,285 ft

Injected (12mo)

—

Operator History

originally filed by MOBIL PRODUCING TX. & N.M. INC. — asset transferred

Lease Production

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

Formation Tops (6) Elevation 2,872 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
SPRABERRY	7,658 ft	-4,786 ft
WOLFCAMP	9,158 ft	-6,286 ft
STRAWN	10,028 ft	-7,156 ft
BEND	10,245 ft	-7,373 ft
DEVONIAN	11,301 ft	-8,429 ft
ELLENBURGER	12,759 ft	-9,887 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 (2)

Interval	Type
11,701–11,990 ft	Perforated
12,720–13,285 ft	Open hole

Casing (4)

Size	Set Depth	Cement
13.375"	469 ft	500 sx
9.625"	4,797 ft	150 sx
5.5"	12,720 ft	2,235 sx
5.5"	—	595 sx

Permit History (2)

#443855 Recompletion Final Completion

PEGASUS FIELD UNIT #3 · 12,650 ft

1996-01-26

Spud 1996-06-11

#303844 Drill Final Completion

PEGASUS ELLENBURGER UNIT · 13,500 ft

1986-07-07

Spud 1986-08-19

Applications (2)

#443855 A MOBIL PRODUCING TX. & N.M. INC.

received 1996-01-19

#303844 A MOBIL PRODUCING TX. & N.M. INC.

received 1986-07-03

Records & Logs

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

W-2/G-1 1996-07-17 log on file

W-2/G-1 1996-08-02

W-2/G-1 1990-05-07

W-2/G-1 1990-05-19

W-2/G-1 1987-01-12 log on file

W-2/G-1 1987-01-24

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 UPTON County.

Well Details

Well Number: 2012
Max Depth: 13,500 ft
Drill Type: Vertical
County: UPTON
District: 7
Operator: XTO ENERGY INC.
Completed: 1986-12-31

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