There's a lot of money getting thrown around in the oil and gas industry. According to a recent report from Barclays, total spending in the industry is expected to surpass $700 billion in 2014. For investors who would like to cash in on these massive piles of money, it's hard to find a better stock than National Oilwell Varco (NOV 0.64%). This company's business model of supplying the oil and gas industry with every piece of equipment needed to go from exploration to completion is exactly why National Oilwell Varco is one of our favorite energy stocks. 

So what exactly is it that separates National Oilwell Varco from other oil service giants such as Schlumberger (SLB 0.67%) and Halliburton (HAL)? Tune into the following video to find out and also learn what the departure of CEO Daniel Miller will mean for the future of the company.