CROOK-HANOVER UNIT

Oil · District 03 · Lease #21084

Operator: ZARVONA ENERGY LLC

Cum Oil

77k BBL

Cum Gas

1.5M MCF

casinghead

Wells

3

Production

1993-01 — 2021-11

Peak Month

1995-10

Production History

Cum Oil: 76,875 BBL Cum Gas: 1,531,252 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

927 BBL/mo

Di (annual)

24.3%

b-factor

0.5

EUR

78,689 BBL

R-squared

0.744

type

hyperbolic

Operator History (from monthly production reports)

2017-11 — 2022-04 PROLINE ENERGY RESOURCES INC 54 mo
2014-01 — 2017-10 ZARVONA ENERGY LLC 46 mo
2012-07 — 2013-12 LLEWELLIN OPERATING COMPANY, LLC 18 mo
1993-01 — 2012-06 COX & PERKINS EXPLORATION, INC. 234 mo

Wells (3)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1PROLINE ENERGY RESOURCES INC111,5001990-12-20
1 HPROLINE ENERGY RESOURCES INC111,5001990-12-20
1VPROLINE ENERGY RESOURCES INC29,0001979-08-21