HALFMAN -A-

Oil · District 08 · Lease #27333

Operator: NADEL AND GUSSMAN PERMIAN,L.L.C.

Cum Oil

3k BBL

Cum Gas

29k MCF

casinghead

Wells

1

Production

1993-01 — 2000-08

Peak Month

1993-04

Production History

Cum Oil: 3,226 BBL Cum Gas: 29,240 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

59 BBL/mo

Di (annual)

181.5%

b-factor

0.7

EUR

922 BBL

R-squared

0.415

type

hyperbolic

Operator History (from monthly production reports)

1999-10 — 2000-10 NADEL AND GUSSMAN PERMIAN,L.L.C. 13 mo
1998-04 — 1999-09 CHESAPEAKE OPERATING, INC. 18 mo
1995-09 — 1998-03 HUGOTON ENERGY CORPORATION 31 mo
1993-05 — 1995-08 CONSOLIDATED OIL & GAS, INC 28 mo
1993-01 — 1993-04 AMAX OIL & GAS INC. 4 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1NADEL AND GUSSMAN PERMIAN L.L.C.18,1001981-08-25