WELLS, HYSON -A-

Oil · District 09 · Lease #18549

Operator: KEY ENERGY OF COLORADO, INC.

Cum Oil

478k BBL

Cum Gas

110k MCF

casinghead

Wells

2

Production

1993-01 — 2006-07

Peak Month

1993-05

Production History

Cum Oil: 478,289 BBL Cum Gas: 109,574 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

18,270 BBL/mo

Di (annual)

89.1%

b-factor

0.1

EUR

273,524 BBL

R-squared

0.843

type

hyperbolic

Operator History (from monthly production reports)

1997-11 — 2012-03 KEY ENERGY OF COLORADO, INC. 173 mo
1995-03 — 1997-10 ENSERCH EXPLORATION, INC 32 mo
1993-01 — 1995-02 EP OPERATING LIMITED PARTNERSHIP 26 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
4KEY ENERGY OF COLORADO INC.18,8001990-11-19
1KEY ENERGY OF COLORADO INC.28,9001977-08-02