HARTGROVE "B"

Oil · District 7C · Lease #6610

Operator: TAMARACK PETROLEUM COMPANY, INC.

Cum Oil

105k BBL

Cum Gas

496k MCF

casinghead

Wells

7

Production

1993-01 — 2021-02

Peak Month

2014-07

Production History

Cum Oil: 105,260 BBL Cum Gas: 495,883 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

932 BBL/mo

Di (annual)

18.5%

b-factor

0.0

EUR

60,369 BBL

R-squared

0.808

type

exponential

Operator History (from monthly production reports)

2010-12 — 2026-07 APACHE CORPORATION 188 mo
2007-12 — 2010-11 MARINER ENERGY, INC. 36 mo
1993-01 — 2007-11 TAMARACK PETROLEUM COMPANY, INC. 179 mo

Wells (7)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6TMAPACHE CORPORATION19,0002007-02-07
2TMAPACHE CORPORATION19,0002006-06-27
7TMAPACHE CORPORATION19,0002006-01-10
142-383-30531APACHE CORPORATION------
242-383-30599APACHE CORPORATION------
342-383-30600APACHE CORPORATION------
442-383-30601APACHE CORPORATION------