42-357-31589

Final Completion

PEARSON D. B.

OCHILTREE County · District 10 · LINN OPERATING INC. · HORIZON (CLEVELAND)

Permits

Max Depth

8,750 ft

First Permit

1984-08-10

Latest Activity

1986-12-03

Lifespan

2 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

1987-03-20

Shut-In

—

Plugged

—

EWA / Production operator mismatch

Scheduling: LINN OPERATING INC. ≠ Production: UNBRIDLED RESOURCES, LLC (reported 2026-04)

EWA / Permit operator mismatch

Scheduling: LINN OPERATING INC. ≠ Permit: HORIZON OIL & GAS CO.

Resolved via: production → UNBRIDLED RESOURCES, LLC

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1993-01

Last Production

2026-07

Operator History

Chain of Custody

HORIZON OIL & GAS CO. 1993-1994→ SONAT EXPLORATION COMPANY-MCR 1995-1999→ EL PASO PRODUCTION COMPANY 2000-2003→ LATIGO PETROLEUM, INC 2003-2003→ LATIGO PETROLEUM TEXAS, LP 2003-2009→ LATIGO PETROLEUM, INC. 2009-2011→ PLAINS EXPLORATION & PROD. CO. 2011-2012→ LINN OPERATING, INC. 2012-2014→ ENERVEST OPERATING, L.L.C. 2015-2015→ 4P ENERGY TEXAS, LLC 2016-2020→ UNBRIDLED RESOURCES, LLC 2020-2026

Lease Production

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

Formation Tops (8) Elevation 3,080 ft (KB)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
KANSAS CITY	6,410 ft	-3,330 ft
CLEVELAND	6,500 ft	-3,420 ft
CLEVELAND	6,545 ft	-3,465 ft
MARMATON	6,940 ft	-3,860 ft
MORROW	7,750 ft	-4,670 ft
LOWER MORROW (Morrow)	8,390 ft	-5,310 ft
MISSISSIPPI (Mississippian)	8,430 ft	-5,350 ft
MISSISSIPPIAN	8,430 ft	-5,350 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 (3)

Interval	Type
6,558–6,588 ft	Perforated
8,395–8,410 ft	Perforated
8,454–8,472 ft	Perforated

Casing (2)

Size	Set Depth	Cement
8.625"	2,122 ft	1,400 sx
4.5"	8,589 ft	350 sx

Permit History (3)

#323473 Recompletion Final Completion

PEARSON, D. B. · 8,580 ft

1986-12-03

#271374 Recompletion Final Completion

PEARSON "M" · 8,590 ft

1985-04-03

#248074 Drill Final Completion

PEARSON "M" · 8,750 ft

1984-08-10

Applications (3)

#323473 A HORIZON OIL & GAS CO.

received 1986-11-24

#271374 A TXO PRODUCTION CORP.

received 1985-04-03

#248074 A TXO PRODUCTION CORP.

received 1984-08-10

Records & Logs

9 completion filings on record · 3 with log images at RRC.

W-2/G-1 1987-03-31 log on file

W-2/G-1 1987-04-17

W-2/G-1 1986-02-12 log on file

W-2/G-1 1986-03-14

W-2/G-1 1985-06-19

+3 more filings

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 OCHILTREE County.

Well Details

Well Number: 4019
Max Depth: 8,750 ft
Drill Type: Vertical
County: OCHILTREE
District: 10
Operator: LINN OPERATING INC.
Completed: 1987-03-20

Operator

Name: LINN OPER, INC
Location: HOUSTON
P-5 Status: Inactive (filed 2016-05-09)
Cum Oil (all leases): 29,555,839 bbl
Cum Gas (all leases): 478,103,312 mcf
Total Permits: 1,401