WEATHERBY 1231

Oil · District 7C · Lease #6374

Operator: TAMARACK PETROLEUM COMPANY, INC.

Cum Oil

1.3M BBL

Cum Gas

5.8M MCF

casinghead

Wells

22

Production

1993-01 — 2026-04

Peak Month

2015-03

Production History

Cum Oil: 1,331,595 BBL Cum Gas: 5,792,937 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

42,017 BBL/mo

Di (annual)

95.8%

b-factor

0.8

EUR

1,580,387 BBL

R-squared

0.900

type

hyperbolic

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 (22)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HUAPACHE CORPORATION18,4402013-12-06
1HMAPACHE CORPORATION18,8052013-12-04
5HMAPACHE CORPORATION18,8002013-12-03
6HUAPACHE CORPORATION18,4252013-11-27
7HMAPACHE CORPORATION18,8002013-11-21
8HUAPACHE CORPORATION18,4002013-11-21
11HMAPACHE CORPORATION18,7002013-11-19
12HUAPACHE CORPORATION18,4002013-11-19
7TMAPACHE CORPORATION19,0002006-06-19
D 7TMAPACHE CORPORATION19,0002006-06-19
6TMAPACHE CORPORATION19,0002006-06-09
D 6TMAPACHE CORPORATION19,0002006-06-09
4TMAPACHE CORPORATION19,0002006-03-09
D 4TMAPACHE CORPORATION19,0002006-03-09
G 2TMAPACHE CORPORATION19,0002005-12-07
H 2TMAPACHE CORPORATION19,0002005-11-21
3TMAPACHE CORPORATION19,0002005-10-28
D 3TMAPACHE CORPORATION19,0002005-10-28
H 1APACHE CORPORATION17,9801980-03-20
G 1APACHE CORPORATION17,9001980-01-22
142-383-30404APACHE CORPORATION------
D 142-383-30404APACHE CORPORATION------