The following video is part of our "Motley Fool Conversations" series, in which analyst John Reeves and advisor David Meier discuss topics across the investing world.

Dave believes that Schlumberger is arguably the best oil and gas services company. After providing more detail on its business, Dave then explains why he ranks it as No. 3 on his list of top 10 energy companies. The video concludes with a long-term outlook for Schlumberger.