42-033-31021

BLACKARD A

BORDEN County · District 8 · MARSHALL & WINSTON INC. · BLACKARD (FUSSELMAN)

Permits

Max Depth

9,954 ft

First Permit

1984-02-22

Latest Activity

1985-05-29

Lifespan

1 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1984-04-04

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: MARSHALL & WINSTON INC. ≠ Production: ESTANCIA OIL & GAS, LLC (reported 2026-03)

Resolved via: production → ESTANCIA OIL & GAS, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

MARSHALL & WINSTON, INC. 1993-2007→ CHESAPEAKE OPERATING, INC. 2007-2012→ ENERVEST OPERATING, L.L.C. 2012-2013→ ESTANCIA OIL & GAS, LLC 2013-2026

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 (6) Elevation 2,942 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
SPRABERRY	6,324 ft	-3,382 ft
LOWER SPRABERRY (Spraberry)	6,850 ft	-3,908 ft
DEAN	7,720 ft	-4,778 ft
PERMO-PENN	8,692 ft	-5,750 ft
STRAWN	8,868 ft	-5,926 ft
FUSSELMAN	9,812 ft	-6,870 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
9,268–9,272 ft	Perforated
9,880–90 ft	Perforated

Casing (3)

Size	Set Depth	Cement
13.375"	320 ft	400 sx
8.625"	3,898 ft	1,000 sx
5.5"	9,954 ft	1,560 sx

Permit History (2)

#276163 Recompletion

BLACKARD "A" · 9,954 ft

1985-05-29

#230135 Drill Final Completion

BLACKARD "A" · 9,950 ft

1984-02-22

Applications (2)

#276163 A MARSHALL & WINSTON, INC.

received 1985-04-23

#230135 A MARSHALL & WINSTON, INC.

received 1984-02-21

Records & Logs

4 completion filings on record.

W-2/G-1 1985-06-05

W-2/G-1 1985-06-25

W-2/G-1 1984-04-09

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 BORDEN County.

Well Details

Well Number: 1
Max Depth: 9,954 ft
Drill Type: Vertical
County: BORDEN
District: 8
Operator: MARSHALL & WINSTON INC.
Completed: 1984-04-04

Operator

Name: MARSHALL & WINSTON, INC
Location: MIDLAND
P-5 Status: Active (filed 2026-05-14)
Cum Oil (all leases): 4,906,076 bbl
Cum Gas (all leases): 36,739,929 mcf
Total Permits: 359