EVANS

Oil · District 7B · Lease #31126

Operator: WINDOW OPERATING CO., THE

Cum Oil

7k BBL

Cum Gas

14k MCF

casinghead

Wells

1

Production

2012-11 — 2026-04

Peak Month

2016-08

Production History

Cum Oil: 7,324 BBL Cum Gas: 14,228 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

140 BBL/mo

Di (annual)

33.3%

b-factor

0.4

EUR

7,964 BBL

R-squared

0.800

type

hyperbolic

Operator History (from monthly production reports)

2026-04 — 2026-07 SANDS ENERGY LLC 4 mo
2012-11 — 2026-03 WINDOW OPERATING CO., THE 161 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4SANDS ENERGY LLC14,0002012-09-05