42-501-33805

Final Completion

MAHONEY H. O.

YOAKUM County · District 8 · HILCORP ENERGY COMPANY · WASSON 72

Permits

Max Depth

8,500 ft

First Permit

1992-10-21

Latest Activity

2017-04-24

Lifespan

25 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1993-04-02

Shut-In

—

Plugged

2024-04-03

EWA / Permit operator mismatch

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

Resolved via: production → HILCORP ENERGY COMPANY

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Plugged 2024-04-09 UIC #000076398 permitted 2008-10-24

Permitted Volume

2,000 bbl/d

Max Pressure

2,400 psi

Injection Interval

6,300–8,300 ft

Injected (12mo)

—

Monthly injected volume (bbl, from H-10 filings through 2018-09-01)

Operator History

Chain of Custody

MOBIL PRODUCING TX. & N.M. INC. 1993-2004→ XTO ENERGY INC. 2004-2025→ 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.

Formation Tops (3) Elevation 3,545 ft

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
TUBB	7,543 ft	-3,998 ft
L. CLEARFORK	7,614 ft	-4,069 ft
WICHITA ALBANY (Wichita-Albany)	8,196 ft	-4,651 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
5,033–5,216 ft	Perforated
7,632–8,120 ft	Perforated

Casing (3)

Size	Set Depth	Cement
13.375"	445 ft	525 sx
8.625"	5,964 ft	2,550 sx
8.625"	5,964 ft	2,550 sx

Permit History (2)

#824393 Recompletion Final Completion

H.O. MAHONEY · 8,250 ft

2017-04-24

Spud 2017-05-10

#404790 Drill Final Completion

MAHONEY, H.O. · 8,500 ft

1992-10-21

Spud 1993-01-12

Applications (2)

#824393 A XTO ENERGY INC.

received 2017-03-13

#404790 A MOBIL PRODUCING TX. & N.M. INC.

received 1992-10-16

Records & Logs

3 completion filings on record.

W-2/G-1 2017-12-08

W-2/G-1 1993-04-29

W-2/G-1 1993-05-10

Completion packets + logs ↗ Wellbore filings ↗

Completion packets open directly (post-2011 filings include attached logs). Log images 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 YOAKUM County.

Well Details

Well Number: 078
Max Depth: 8,500 ft
Drill Type: Vertical
County: YOAKUM
District: 8
Operator: HILCORP ENERGY COMPANY
Completed: 1993-04-02

Operator

Name: HILCORP ENGY CO
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: 3,435