HALFF -16-

Oil · District 7C · Lease #6917

Operator: TAMARACK PETROLEUM COMPANY, INC.

Cum Oil

16k BBL

Cum Gas

50k MCF

casinghead

Wells

1

Production

1993-01 — 1998-08

Peak Month

1998-08

Production History

Cum Oil: 16,407 BBL Cum Gas: 50,440 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

1,413 BBL/mo

Di (annual)

104.0%

b-factor

0.0

EUR

16,299 BBL

R-squared

0.861

type

exponential

Operator History (from monthly production reports)

1993-01 — 1999-05 TAMARACK PETROLEUM COMPANY, INC. 77 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1APACHE CORPORATION18,3401998-09-18