Investors interested in Oils-Energy stocks should always be looking to find the best-performing companies in the group. Is Vaalco Energy (EGY) one of those stocks right now? By taking a look at the stock's year-to-date performance in comparison to its Oils-Energy peers, we might be able to answer that question.Vaalco Energy is a member of our Oils-Energy group, which includes 246 different companies and currently sits at #15 in the Zacks Sector Rank. The Zacks Sector Rank gauges the strength of our 16 indiv ...