ERHC Energy Inc. announced that it has reached an agreement with Kosmos Energy to transfer all ERHC's rights to Block 11 of the Sao Tome and Principe Exclusive Economic Zone (EEZ) to Kosmos. The agreement has been approved by the National Petroleum Agency of Sao Tome &Principe ("ANP-STP") as required in the requisite Production Sharing Contract ("PSC") for EEZ Block 11.