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42-079-32591

INJECTION

CONOCO-DEAN UNIT

COCHRAN County · District 8 · EXTEX OPERATING COMPANY · SLAUGHTER

Permits

1

Max Depth

5,500 ft

First Permit

1991-04-25

Latest Activity

1991-04-25

Lifespan

< 1 yr

Regulatory Status

Schedule

ON SCHEDULE

Completion

1991-07-25

Shut-In

—

Plugged

—

P-5 Org Status: Active

!

EWA / Permit operator mismatch

Scheduling: EXTEX OPERATING COMPANY ≠ Permit: CONOCO INC.

Resolved via: production → EXTEX OPERATING COMPANY

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Injection / Disposal

H-1 Injection Active UIC #000074874 permitted 1996-09-23

Permitted Volume

1,000 bbl/d

Max Pressure

2,450 psi

Injection Interval

4,900–5,190 ft

Injected (12mo)

5,438 bbl

Monthly injected volume (bbl, from H-10 filings through 2025-12-01)

Operator History

Chain of Custody

CONOCO INC. 1993-1994→ MERIT ENERGY COMPANY 1994-2000→ PERMIAN RESOURCES, INC. 2000-2003→ SHENANDOAH PETROLEUM CORPORATION 2003-2007→ LEGACY RESERVES OPERATING LP 2007-2021→ EXTEX OPERATING COMPANY 2021-2026

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 (5) Elevation 3,695 ft (GL)

CSV
FormationTop Depth (MD)Subsea (+above / −below SL)
SANTA ROSA #1 (Santa Rosa)1,240 ft+2,455 ft
SANTA ROSA #2 (Santa Rosa)1,800 ft+1,895 ft
YATES 2,860 ft+835 ft
SAN ANDRES 4,200 ft-505 ft
SAN ANDRES 4,900 ft-1,205 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 ↗

Casing (2)

SizeSet DepthCement
9.625"1,822 ft850 sx
5.5"4,646 ft1,405 sx

Permit History (1)

#387080 Drill Final Completion

CONOCO DEAN UNIT · 5,500 ft

1991-04-25

Spud 1991-07-16

Applications (1)

#387080 A CONOCO INC.
received 1991-04-23

Records & Logs

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

W-2/G-1 1992-01-22 log on file
W-2/G-1 1992-02-26
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 COCHRAN County.

Well Details

Well Number
156
Max Depth
5,500 ft
Drill Type
Vertical
County
COCHRAN
District
8
Operator
EXTEX OPERATING COMPANY
Completed
1991-07-25

Operator

Location
HOUSTON
P-5 Status
Active (filed 2026-01-07)
Cum Oil (all leases)
5,887,486 bbl
Cum Gas (all leases)
10,031,045 mcf
Activities
OPRS/G, OPRS/O
Total Permits
117