SLASH "B"

Oil · District 08 · Lease #30897

Operator: WISER OIL COMPANY, THE

Cum Oil

161k BBL

Cum Gas

613k MCF

casinghead

Wells

4

Production

1993-01 — 2007-06

Peak Month

1995-05

Production History

Cum Oil: 160,745 BBL Cum Gas: 612,555 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

998 BBL/mo

Di (annual)

9.1%

b-factor

0.0

EUR

130,666 BBL

R-squared

0.346

type

exponential

Operator History (from monthly production reports)

2005-12 — 2008-04 FOREST OIL CORPORATION 29 mo
1997-10 — 2005-11 WISER OIL COMPANY, THE 98 mo
1997-02 — 1997-09 COSTILLA ENERGY, INC. 8 mo
1996-06 — 1997-01 COSTILLA PETROLEUM CORPORATION 8 mo
1995-03 — 1996-05 PARKER & PARSLEY DEVELOPMENT L.P 15 mo
1993-01 — 1995-02 PARKER & PARSLEY DEVELOPMENT CO. 26 mo

Wells (4)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
3FOREST OIL CORPORATION26,7002006-07-31
4LAST MILE PRODUCTION, LLC26,7002001-03-06
2FOREST OIL CORPORATION16,7001986-12-03
1FOREST OIL CORPORATION16,6001986-07-31