Primeline Energy Holdings Inc. announces that it has sent a letter to China National Offshore Oil Corporation (CNOOC) and CNOOC China Limited (CCL) (together CNOOC Group) giving formal notice of its intention to commence arbitration proceedings against CNOOC Group under the provisions of the Petroleum Contract for Block 25/34. The CNOOC Arbitration relates to Primeline’s continuing disputes with CNOOC Group with regard to the development, production and sales of gas from the LS36-1 Gas Field (LS36-1). Primeline has appointed an arbitrator and will file the formal Notice of Arbitration in accordance with the UNCITRAL Arbitration Rules 1976 and the arbitration agreement under the Petroleum Contract for Block 25/34.