1990-2011

1990-2006
Focused on 3-d seismic exploration across the US

2006
Shifted focus to resource plays in the us, ultimately targeting and becoming one of the early pioneers in the Williston basin in North Dakota

2006-2011
Assembled 376,000 net acres in the Williston basin, drilling over 100 wells targeting the Bakken and Three Forks formations

November 2011
Sold company to Statoil for $4.4 billion