42-003-36260

INJECTION

FULLERTON CLEARFORK UNIT

ANDREWS County · District 8 · HILCORP ENERGY COMPANY · FULLERTON

Permits

1

Max Depth

7,400 ft

First Permit

1988-10-17

Latest Activity

1988-10-17

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2012-06-04

Shut-In

Plugged

P-5 Org Status: X

!

EWA / Permit operator mismatch

Scheduling: HILCORP ENERGY COMPANY ≠ Permit: EXXON CORP.

Resolved via: productionHILCORP ENERGY COMPANY

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

H-1 Injection Active UIC #000067838 permitted 1988-12-21

Permitted Volume

1,500 bbl/d

Max Pressure

1,600 psi

Injection Interval

5,625–7,400 ft

Injected (12mo)

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

Lease Production

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

Formation Tops (4) Elevation 3,333 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
UPPER CLEARFORK (Clear Fork)6,049 ft-2,716 ft
TUBB 6,475 ft-3,142 ft
LOWER CLEARFORK (Clear Fork)6,563 ft-3,230 ft
WICHITA (Wichita-Albany)7,092 ft-3,759 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)

IntervalType
6,018–6,124 ftPerforated
6,675–7,263 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"1,743 ft700 sx
5.5"7,381 ft1,450 sx

Permit History (1)

Applications (1)

#352298 A EXXON CORP.
received 1988-10-14

Records & Logs

4 completion filings on record.

W-2/G-1 2012-06-12
W-2/G-1 1994-08-01
W-2/G-1 1989-01-31
W-2/G-1 1989-02-22
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
688
Max Depth
7,400 ft
Drill Type
Vertical
County
ANDREWS
District
8
Completed
2012-06-04

Operator

Location
HOUSTON
P-5 Status
X (filed 2026-03-27)
Cum Oil (all leases)
75,699,281 bbl
Cum Gas (all leases)
1,779,939,645 mcf
Activities
CSGD/G, CSGD/P, G/PUR, GTHS/C, GTHS/G, GTHS/O, OPRS/G, OPRS/O
Total Permits
3,428