42-355-33065

Directional

J.O. CHAPMAN

NUECES County · District 4 · DECKER OPERATING CO., L.L.C.

Permits

Max Depth

13,500 ft

First Permit

1997-01-21

Latest Activity

2009-11-24

Lifespan

13 yrs

Regulatory Status

Schedule

OFF SCHEDULE

Completion

—

Shut-In

—

Plugged

—

Production Summary

Cum Oil

— bbl

Cum Gas

— mcf

First Production

1997-04

Last Production

2010-05

Operator History

Chain of Custody

SHELL WESTERN E&P INC. 1997-1999→ SHANA PETROLEUM COMPANY 1999-2002→ NEG OPERATING LLC 2002-2004→ DECKER OPERATING CO., L.L.C. 2004-2009

Lease Production

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

Gas

production & DCA →

Formation Tops (1) Elevation 42 ft (GR)

CSV

Formation	Top Depth (MD)	Subsea (+above / −below SL)
HOWELL HIGHT	12,354 ft	-12,312 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
12,440–12,480 ft	Perforated
12,502–12,527 ft	Perforated
12,552–12,580 ft	Perforated

Casing (3)

Size	Set Depth	Cement
13.375"	1,550 ft	1,580 sx
9.625"	10,000 ft	2,170 sx
3.5"	12,830 ft	995 sx

Permit History (2)

#687755 Recompletion

J.O. CHAPMAN · 13,500 ft

2009-11-24

#457626 Drill Final Completion

CHAPMAN, J.O. 38 · 12,900 ft

1997-01-21

Spud 1997-02-14

Applications (2)

#687755 A DECKER OPERATING CO., L.L.C.

received 2009-11-20

#457626 A SHELL WESTERN E&P INC.

received 1997-01-21

Records & Logs

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

W-2/G-1 1997-07-16 log on file

W-2/G-1 1997-09-26

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 NUECES County.

Well Details

Well Number: 1261ST
Max Depth: 13,500 ft
Drill Type: Directional
County: NUECES
District: 4
Operator: DECKER OPERATING CO., L.L.C.

Operator

Name: DECKER OPER CO., L.L.C
Location: HOUSTON
P-5 Status: Active (filed 2026-03-04)
Cum Oil (all leases): 733,714 bbl
Cum Gas (all leases): 31,117,540 mcf
Activities: CSGD/G, GTHS/G, OPRS/G, OPRS/O
Total Permits: 137