1. OIL FIELD SERVICES
One company's rapid expansion comes through buyout binge
HOUSTON -- Dan Eberhart has big plans for his fledgling oil field services company. Born out of North Dakota's Bakken Shale boom, Frontier Energy Group has been expanding rapidly for the past four years. Frontier has been on an aggressive march to do business across the country in other shale plays. Its method of growth is simple -- gobbling up the competition.