WELLS

Oil · District 7C · Lease #5221

Operator: TAMARACK PETROLEUM COMPANY, INC.

Cum Oil

258k BBL

Cum Gas

1.2M MCF

casinghead

Wells

8

Production

1993-01 — 2026-04

Peak Month

2007-08

Production History

Cum Oil: 258,107 BBL Cum Gas: 1,169,544 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

2,560 BBL/mo

Di (annual)

12.6%

b-factor

0.0

EUR

243,481 BBL

R-squared

0.776

type

exponential

Operator History (from monthly production reports)

2025-03 — 2026-07 DE CENTRAL OPERATING, LLC 17 mo
2022-10 — 2025-02 FLAT TOP OPERATING, LLC 29 mo
2021-03 — 2022-09 HEXP OPERATING, LLC 19 mo
2020-06 — 2021-02 BAM PERMIAN OPERATING, LLC 9 mo
2017-03 — 2020-05 PARSLEY ENERGY OPERATIONS, LLC 39 mo
2010-12 — 2017-02 APACHE CORPORATION 75 mo
2007-12 — 2010-11 MARINER ENERGY, INC. 36 mo
1993-01 — 2007-11 TAMARACK PETROLEUM COMPANY, INC. 179 mo

Wells (8)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
6TMDE CENTRAL OPERATING, LLC110,0002008-04-02
7TMDE CENTRAL OPERATING, LLC110,0002008-04-02
3TMDE CENTRAL OPERATING, LLC18,7002007-05-25
8TMDE CENTRAL OPERATING, LLC18,7002007-05-23
5TMDE CENTRAL OPERATING, LLC29,0002007-03-14
4TMDE CENTRAL OPERATING, LLC19,0002005-12-28
142-383-11158DE CENTRAL OPERATING, LLC------
242-383-11331DE CENTRAL OPERATING, LLC------