Enerplus Q1 2023 Update

2023 guidance 2023 ANNUAL GUIDANCE Capital spending (US$MM) Total production (Mboe/d) Liquids production (Mbbl/d) Average production tax rate (% of net sales, before transportation) Operating expense (US$/boe) Transportation expense (US$/boe) Cash G&A expense (US$/boe) Current tax expense Bakken oil price differential. vs WTI (US$/bbl)(1) Marcellus natural gas price differential. vs NYMEX (US$/Mcf)(1) 1) Excluding transportation costs. $500-$550 93-98 57-61 7-8% (previous 7%) $10.75-$11.75 $4.20 (previous $4.35) $1.35 5% -6% of adjusted funds flow before tax $+0.50 (previous $+0.75) $(0.75) enerPLUS 22

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