WELCH "A"

Oil · District 09 · Lease #22315

Operator: WINFIELD OPERATING COMPANY

Cum Oil

4k BBL

Cum Gas

152k MCF

casinghead

Wells

1

Production

1993-01 — 2013-02

Peak Month

1993-05

Production History

Cum Oil: 4,394 BBL Cum Gas: 152,450 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

50 BBL/mo

Di (annual)

16.5%

b-factor

0.3

EUR

4,833 BBL

R-squared

0.636

type

hyperbolic

Operator History (from monthly production reports)

2007-02 — 2026-07 WINFIELD OPERATING COMPANY 234 mo
1993-01 — 2007-01 MARCON OPERATING COMPANY, INC. 169 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1WINFIELD OPERATING COMPANY16,0001980-03-10