42-003-36202

FULLERTON CLEARFORK UNIT

ANDREWS County · District 8 · EXXON CORP.

Permits

Max Depth

7,500 ft

First Permit

1988-07-12

Latest Activity

1995-12-11

Lifespan

7 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 Inactive UIC #000084376 permitted 1996-02-29

Permitted Volume

2,000 bbl/d

Max Pressure

2,500 psi

Injection Interval

5,705–7,500 ft

Injected (12mo)

—

Monthly injected volume (bbl, from H-10 filings through 2026-03-01)

Operator History

Chain of Custody

EXXON CORP. 1993-2000→ EXXON MOBIL CORPORATION 2000-2011→ XTO ENERGY INC. 2012-2025→ HILCORP ENERGY COMPANY 2025-2026

Lease Production

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

Oil

production & DCA →

Formation Tops (4) Elevation 3,325 ft (GL)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
UPPER CLEARFORK (Clear Fork)	6,030 ft	-2,705 ft
TUBB	6,491 ft	-3,166 ft
LOWER CLEARFORK (Clear Fork)	6,554 ft	-3,229 ft
WICHITA (Wichita-Albany)	7,022 ft	-3,697 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
6,048–7,300 ft	Perforated
6,090–7,300 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	1,713 ft	600 sx
5.5"	7,396 ft	1,411 sx

Permit History (2)

#442613 Recompletion

FULLERTON CLEARFORK UNIT · 7,500 ft

1995-12-11

#348709 Drill Final Completion

FULLERTON CLEARFORK UNIT · 7,400 ft

1988-07-12

Applications (2)

#442613 A EXXON CORP.

received 1995-12-07

#348709 A EXXON CORP.

received 1988-07-11

Records & Logs

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

W-2/G-1 1995-08-29

W-2/G-1 1988-10-31 log on file

W-2/G-1 1988-11-08

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: 5639
Max Depth: 7,500 ft
Drill Type: Vertical
County: ANDREWS
District: 8
Operator: EXXON CORP.

Operator

Name: YOUNGBLOOD, C. S. III
Location: HOUSTON
P-5 Status: S (filed 1999-03-15)
Cum Oil (all leases): 215,968,885 bbl
Cum Gas (all leases): 2,000,503,710 mcf
Activities: OPRS/O
Total Permits: 19,549