USSERY 66

Oil · District 7B · Lease #30226

Operator: HEIGHTS ENERGY CORPORATION

Cum Oil

38k BBL

Cum Gas

21k MCF

casinghead

Wells

1

Production

2008-09 — 2014-08

Peak Month

2009-03

Production History

Cum Oil: 37,850 BBL Cum Gas: 21,301 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,611 BBL/mo

Di (annual)

84.9%

b-factor

0.6

EUR

50,515 BBL

R-squared

0.874

type

hyperbolic

Operator History (from monthly production reports)

2008-09 — 2018-06 HEIGHTS ENERGY CORPORATION 118 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1HEIGHTS ENERGY CORPORATION16,2002008-08-14