About Enerplus

May 7 , 2010

Enterprise Value: CDN $4.8 Billion
Units Outstanding: 177.4 Million

2010 Daily Production Outlook: 86,000 BOE/day — 57% natural gas 43% crude oil & natural gas liquids

Reserve Life Index: 10.9 Years
Commodity Prices: WTI CRUDE OIL, NYMEX
Canadian/US Exchange Rate
Debt to Cash Flow: 0.7x
Capital Spending: 2010 Budget $425 million
Monthly Distributions: CDN $0.18/unit/month

Last updated: May 13, 2010