HALFF ESTATE A

Oil · District 7C · Lease #14581

Operator: TAMARACK PETROLEUM COMPANY, INC.

Cum Oil

18k BBL

Cum Gas

85k MCF

casinghead

Wells

1

Production

1997-03 — 2015-09

Peak Month

1997-08

Production History

Cum Oil: 18,225 BBL Cum Gas: 84,962 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

642 BBL/mo

Di (annual)

105.4%

b-factor

0.7

EUR

19,242 BBL

R-squared

0.922

type

hyperbolic

Operator History (from monthly production reports)

2010-12 — 2016-05 APACHE CORPORATION 66 mo
2007-12 — 2010-11 MARINER ENERGY, INC. 36 mo
1997-03 — 2007-11 TAMARACK PETROLEUM COMPANY, INC. 129 mo

Wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1APACHE CORPORATION27,7601996-11-20