Investors looking for stocks in the Oil and Gas - Exploration and Production - United States sector might want to consider either CNX Resources Corporation. (CNX) or Comstock Resources (CRK) . But which of these two stocks offers value investors a better bang for their buck right now? We'll need to take a closer look.We have found that the best way to discover great value opportunities is to pair a strong Zacks Rank with a great grade in the Value category of our Style Scores system. The proven Zacks Rank e ...