HARTGROVE "A"

Oil · District 9 · Lease #6559

Operator: TAMARACK PETROLEUM COMPANY, INC.

Cum Oil

42k BBL

Cum Gas

0 MCF

Wells

3

Production

1993-01 — 2026-03

Peak Month

2016-10

Production History

Cum Oil: 42,381 BBL Cum Gas: 0 MCF

Decline Curve Analysis

qi

667 BBL/mo

Di (annual)

81.2%

b-factor

0.9

EUR

32,705 BBL

R-squared

0.858

type

hyperbolic

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1DAPACHE CORPORATION19,0002016-08-03
3TMMARINER ENERGY, INC.19,0002006-09-14
142-383-30464--------
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