Motley Fool energy analyst Joel South considers EOG Resources (NYSE:EOG) to be best in its peer group; even more, it is distancing itself by growing its oil production at an amazing clip. The company's efficiency allows it to drill for less, both in the Bakken Shale and in the Eagle Ford Shale, and its supply chain strength allows the company to sell its oil at a premium, increasing its bottom line. Although this company is one of the best in the E&P space, its not the cheapest buy around.