42-461-01549

Final Completion

PEGASUS FIELD UNIT #3

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

Permits

Max Depth

12,930 ft

First Permit

1979-07-17

Latest Activity

1989-04-25

Lifespan

10 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1984-05-19

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: XTO ENERGY INC. ≠ Production: MOBIL PRODUCING TX. & N.M. INC. (reported 1994-10)

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

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.

Gas

production & DCA →

Formation Tops (6) Elevation 2,861 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
SPRABERRY	7,650 ft	-4,789 ft
WOLFCAMP	9,070 ft	-6,209 ft
MISSISSIPPIAN	10,950 ft	-8,089 ft
DEVONIAN	11,640 ft	-8,779 ft
SILURIAN (Silurian (undifferentiated))	12,320 ft	-9,459 ft
FUSSELMAN	12,370 ft	-9,509 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 (3)

Interval	Type
12,069–12,175 ft	Perforated
12,422–12,480 ft	Perforated
?–12,480 ft	Perforated

Casing (10)

Size	Set Depth	Cement
13.375"	300 ft	325 sx
13.375"	300 ft	—
9.625"	4,655 ft	2,300 sx
9.625"	4,661 ft	—
2.375"	12,297 ft	—
7"	13,026 ft	400 sx
7"	13,026 ft	—
13.375"	—	—
9.625"	—	—
7"	—	—

Permit History (2)

#358480 Recompletion Final Completion

PEGASUS FIELD UNIT #3 · 12,320 ft

1989-04-25

#53099 Recompletion Final Completion

PEGASUS FIELD UNIT NO. 3 · 12,930 ft

1979-07-17

Applications (2)

#358480 A MOBIL PRODUCING TX. & N.M. INC.

received 1989-04-24

#53099 A MOBIL OIL CORPORATION

received 1979-07-17

Records & Logs

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

W-2/G-1 1990-01-31 log on file

W-2/G-1 1990-02-22

W-2/G-1 1984-06-11

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.

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: 5001
Max Depth: 12,930 ft
Drill Type: Vertical
County: UPTON
District: 7
Operator: XTO ENERGY INC.
Completed: 1984-05-19

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: 16,140