HAZELWOOD

Oil · District 09 · Lease #30027

Operator: TATANKA OPERATING, LLC

Cum Oil

980k BBL

Cum Gas

1.7M MCF

casinghead

Wells

2

Production

2001-10 — 2026-04

Peak Month

2008-05

Production History

Cum Oil: 980,333 BBL Cum Gas: 1,708,657 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

3,643 BBL/mo

Di (annual)

14.3%

b-factor

0.0

EUR

304,849 BBL

R-squared

0.473

type

exponential

Operator History (from monthly production reports)

2023-05 — 2026-07 TATANKA OPERATING, LLC 39 mo
2021-01 — 2023-04 ATOKA OPERATING, INC. 28 mo
2001-10 — 2020-12 HEAPE EXPLORATION, INC. 231 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2TATANKA OPERATING, LLC111,0002003-02-18
1TATANKA OPERATING, LLC210,5002001-05-29