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FULLERTON CLEARFORK UNIT

ANDREWS County · District 8 · HILCORP ENERGY COMPANY · FULLERTON

Permits

2

Max Depth

7,600 ft

First Permit

2015-09-17

Latest Activity

2015-09-17

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

2016-09-15

Shut-In

Plugged

P-5 Org Status: X

!

EWA / Permit operator mismatch

Scheduling: HILCORP ENERGY COMPANY ≠ Permit: XTO ENERGY INC.

Resolved via: productionHILCORP ENERGY COMPANY

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

Lease Production

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

Formation Tops (10) Elevation 3,358 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
YATES 2,858 ft+500 ft
SEVEN RIVERS 3,109 ft+249 ft
QUEEN 3,694 ft-336 ft
GRAYBURG 4,020 ft-662 ft
SAN ANDRES - CO2 FLOOD, HIGH FLO (San Andres)4,313 ft-955 ft
GLORIETA 5,482 ft-2,124 ft
TUBB 6,462 ft-3,104 ft
CLEARFORK (Clear Fork)6,605 ft-3,247 ft
HOLT
PERMIAN DETRITAL (Permian (undifferentiated))

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)

IntervalType
6,642–6,760 ftPerforated
6,825–7,036 ftPerforated
7,088–7,253 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"1,708 ft695 sx
5.5"7,395 ft1,845 sx

Permit History (2)

Applications (2)

#810257 A XTO ENERGY INC.
received 2016-04-25
#810257 A XTO ENERGY INC.
received 2015-09-10

Records & Logs

1 completion filing on record · 1 with log images at RRC.

W-2/G-1 2016-11-03 log on file
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
5421
Max Depth
7,600 ft
Drill Type
Vertical
County
ANDREWS
District
8
Completed
2016-09-15

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
3,436