How a risky move paid off for this N.Y.C. investor and oil boss

When other major players in the oil-and-gas industry zigged, Scot Cohen zagged. Unconventional drilling, such as fracking across shale plays, has become the popular route for most energy explorers in recent years. Cohen, however, did the opposite: the New York-based investor has put his money into straight conventional drilling using 3D-seismic geology. The decision was …