One investor has been amassing a huge position in oil services company National Oilwell Varco (NYSE:NOV); that investor is Warren Buffett. Ever heard of him? There is a reason that Buffett loves this stock so much, it is one of the few companies out there in the energy industry that is a pure play on the health of the entire industry. So unless you don't think that Warren Buffet is an investing genius, then perhaps this one should be on your radar as well.

As the company heads into the upcoming quarter, one aspect of the business to keep a close eye on is the manufacture and sales of floating production platforms. These high cost facilities will become a hot commodity as several regions around the world look to start pumping oil from offshoer fields, and National Oilwell Varco is looking to capture a large portion of that market. To learn more about this Buffett favorite and what its future will look like, tune into the video below.

What will be 2014's version of Core Labs?
The Motley Fool's chief investment officer really nailed his 2013 top stock pick with Core Labs, which shot up a spectacular 75% this year alone! Now, he has selected his No. 1 stock for 2014, and it's one of those stocks that has the potential for a great year ahead. You can find out which stock it is in the special report: "The Motley Fool's Top Stock for 2014." Simply click here and we'll give you free access to the name of this under-the-radar company.

Fool contributor Tyler Crowe has no position in any stocks mentioned. You can follow him at under the handle TMFDirtyBird, on Google +, or on Twitter, @TylerCroweFool. 

The Motley Fool recommends National Oilwell Varco and Petroleo Brasileiro S.A. (ADR). The Motley Fool owns shares of National Oilwell Varco. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.