WELDER "J"

Oil · District 04 · Lease #13197

Operator: SYDRI OPERATING, LLC

Fields: SINTON, NORTH (4700 SAND)

Cum Oil

19k BBL

Cum Gas

31k MCF

casinghead

Wells

1

Production

2003-10 — 2025-06

Peak Month

2006-03

Production History

Cum Oil: 19,303 BBL Cum Gas: 30,638 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

395 BBL/mo

Di (annual)

27.8%

b-factor

0.1

EUR

18,880 BBL

R-squared

0.854

type

hyperbolic

Operator History (from monthly production reports)

2015-05 — 2026-07 DALLAS PETROLEUM GROUP, LLC 135 mo

2008-03 — 2015-04 SYDRI OPERATING, LLC 86 mo

2005-10 — 2008-02 HAZELETT OIL, INC. 29 mo

2003-10 — 2005-09 HAZELETT OIL COMPANY, INC. 24 mo

Wells (1)

WELL#	API	OPERATOR	PERMITS	DEPTH	LAST_ISSUED
2	42-409-32558	HAZELETT OIL INC.	2	7,500	2004-01-09