IRVIN FAMILY UNIT B

Oil // district 1 // lease#15999

op: SILVERBOW RESOURCES OPER, LLC

cum_oil

255k BBL

cum_gas

0 MCF

wells

2

production

2011-03 — 2026-03

peak_month

2014-03

-- production_history

cum_oil: 254,598 BBL cum_gas: 0 MCF

-- 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

-- wells (2)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
5HCHEYENNE PETROLEUM COMPANY18,5002013-10-11
1HCHEYENNE PETROLEUM COMPANY28,5002010-08-31
EOF // multi-state drilling data platform // 2026