 NEW YORK--BUSINESS WIRE--Halper Sadeh LLP, a global investor rights law firm, is investigating whether the sale of Contango Oil Gas Company NYSE American: MCF to Independence Energy, LLC is fair to Contango shareholders. Under the terms of the transaction, Independence will merge with an operating subsidiary OpCo of a new parent company, which will become a publicly traded entity at closing, and Contango will become a wholly owned subsidiary of OpCo. Upon completion of the transac 