42-501-32740

Final Completion

LACKEY MARY

YOAKUM County · District 8 · SHELL WESTERN E&P INC. · OWNBY (CLEAR FORK UPPER)

Permits

1

Max Depth

7,100 ft

First Permit

1984-10-22

Latest Activity

1984-10-22

Lifespan

< 1 yr

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1985-01-24

Shut-In

Plugged

!

EWA / Production operator mismatch

Scheduling: SHELL WESTERN E&P INC. ≠ Production: OCCIDENTAL PERMIAN LTD. (reported 2026-04)

!

EWA / Permit operator mismatch

Scheduling: SHELL WESTERN E&P INC. ≠ Permit: TENNECO OIL CO.

Resolved via: productionOCCIDENTAL PERMIAN LTD.

Production Summary

Cum Oil

bbl

Cum Gas

mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Active UIC #000079568 permitted 1993-07-30

Permitted Volume

1,000 bbl/d

Max Pressure

2,000 psi

Injection Interval

6,654–7,000 ft

Injected (12mo)

3,901 bbl

Monthly injected volume (bbl, from H-10 filings through 2025-11-01)

Lease Production

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

Formation Tops (5) Elevation 3,569 ft (GR)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
RUSTLER 2,580 ft+989 ft
YATES 3,358 ft+211 ft
SAN ANDRES 4,740 ft-1,171 ft
GLORIETTA (Glorieta)6,025 ft-2,456 ft
CLEARFORK (Clear Fork)6,315 ft-2,746 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 (1)

IntervalType
6,680–6,857 ftPerforated

Casing (2)

SizeSet DepthCement
8.625"2,595 ft1,195 sx
5.5"7,000 ft1,660 sx

Permit History (1)

Applications (1)

#255472 A TENNECO OIL CO.
received 1984-10-19

Records & Logs

5 completion filings on record.

W-2/G-1 2002-01-25
W-2/G-1 1985-02-11
W-2/G-1 1985-02-11
W-2/G-1 1985-02-11
W-2/G-1 1985-02-20

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
3
Max Depth
7,100 ft
Drill Type
Vertical
County
YOAKUM
District
8
Completed
1985-01-24

Operator

Location
HOUSTON
P-5 Status
Inactive (filed 1999-09-16)
Cum Oil (all leases)
103,539,803 bbl
Cum Gas (all leases)
1,149,777,929 mcf
Total Permits
2,528