IRVIN FAMILY UNIT B

Oil · District 01 · Lease #15999

Operator: SILVERBOW RESOURCES OPER, LLC

Cum Oil

255k BBL

Cum Gas

284k MCF

casinghead

Wells

2

Production

2011-03 — 2025-05

Peak Month

2014-04

Production History

Cum Oil: 254,598 BBL Cum Gas: 283,593 MCF

RRC production reported through Apr 2026 · recent months incomplete

Decline Curve Analysis

qi

21,881 BBL/mo

Di (annual)

341.4%

b-factor

0.8

EUR

272,784 BBL

R-squared

0.961

type

hyperbolic

Operator History (from monthly production reports)

2026-05 — 2026-07 CRESCENT ENERGY OPERATING, LLC 3 mo
2024-05 — 2026-04 SILVERBOW RESOURCES OPER, LLC 24 mo
2011-03 — 2024-04 CHEYENNE PETROLEUM COMPANY 158 mo

Wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5HCRESCENT ENERGY OPERATING LLC18,5002013-10-11
1HCRESCENT ENERGY OPERATING LLC28,5002010-08-31