 NEW YORK--BUSINESS WIRE--Halper Sadeh LLP, a global investor rights law firm, is investigating whether the merger of Cabot Oil Gas Corporation NYSE: COG and Cimarex Energy Co. is fair to Cabot Oil Gas shareholders. Cimarex Energy shareholders will receive Cabot Oil Gas common stock in connection with the merger. Upon completion of the transaction, Cabot Oil Gas shareholders will own approximately 49.5 of the combined company on a fully diluted basis. Halper Sadeh en 