Pro-Forma Proved Reserves:

• Proved producing reserves of 7.1 MMboe as of March 31, 2012
• Total proved reserves of 20.6 MMboe as of March 31, 2012

Current Production:

• ~90% crude oil
• ~90% from the Williston Basin
• 260 gross wells on production in the Williston Basin

Acerage:

• 125,000 net acres in the Williston Basin
  • 92,056 net acres in North Dakota
  • 32,944 net acres in Tableland
• 46,749 net acres located in Alberta

Drilling Opportunities:

• Over 824 net locations identified in the Williston Basin
  • Drilling locations targeting the Middle Bakken / Three Forks Sanish
• 6-7 gross (3-4 net) drilling rigs currently running in the Williston Basin
• Net Unrisked Net Resources Potential of ~114 MMboe