Chesapeake Energy Corporation (NYSE: CHK ) has been unlocking shareholder value by divesting several non-core assets. The company said that it has already signed $2 billion of asset sales since the beginning of the year. Chesapeake Energy Corporation (NYSE: CHK ) announced its goal of divesting $4 – $7 billion worth of assets within 2013. It is trading at around $19.50 per share, with a total market cap of around $13 billion. The market values Chesapeake Energy Corporation (NYSE: CHK ) much higher than SandRidge, at 5.82 times its trailing EBITDA. Another big energy player, Hess Corp. (NYSE: HES ), has been faced with shareholder activism. One of the company's biggest shareholders, Elliott Management, with a 4.5% stake in the company, thought that Hess could be worth as much as $126 per share, around two times higher than its current trading price of $64.30 per share.