Amplify Energy (NYSE:AMPY – Get Rating) and Ecoark (NASDAQ:ZEST – Get Rating) are both small-cap oils/energy companies, but which is the superior investment? We will compare the two businesses based on the strength of their profitability, risk, institutional ownership, dividends, analyst recommendations, valuation and earnings. Profitability This table compares Amplify Energy and Ecoark’s net margins, […]