WELDER, R.H. -B-

Oil · District 04 · Lease #11591

Operator: SYDRI OPERATING, LLC

Cum Oil

123k BBL

Cum Gas

273k MCF

casinghead

Wells

1

Production

1993-01 — 2021-05

Peak Month

2011-08

Production History

Cum Oil: 123,366 BBL Cum Gas: 273,475 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

802 BBL/mo

Di (annual)

91.6%

b-factor

0.0

EUR

10,494 BBL

R-squared

0.558

type

exponential

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
2002-07 — 2005-09 HAZELETT OIL COMPANY, INC. 39 mo
2000-01 — 2002-06 CONSOLIDATED PETRO PTNRS I, LLC 30 mo
1993-01 — 1999-12 MARATHON OIL COMPANY 84 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
12MARATHON OIL COMPANY28,0042021-07-20