Investors' affinity -- like my own -- for offshore rig company Seadrill (NYSE:SDRL) can be boiled down to one key element: its fleet. With newer drillships and semi-submersible rigs that can handle some of the most complex jobs in offshore drilling, the company has a strong leg up over many of its compeitors. For those who follow the rig market closely, you may have also noticed some up-and-comers that have the same competitive advantage. Those companies are Vantage Drilling (NYSEMKT: VTG), Ocean Rig UDW (NASDAQ:ORIG), and Pacific Drilling (NYSE:PACD).

Newer rigs isn't the only trait that these companies share with Seadrill that could make them an attractive investment, though. Find out what else Vantage, Ocean Rig, and Pacific Drilling have in common with Seadrill, and what separates them from the industry leader, by tuning into the video below.