VANCOUVER, BRITISH COLUMBIA and OKLAHOMA CITY, OKLAHOMA — (Marketwire) — 01/23/13 — Methanex Corporation (TSX: MX)(NASDAQ: MEOH)(SANTIAGO: Methanex) and Chesapeake Energy Corporation (NYSE: CHK) today announced the execution of a 10-year agreement to supply all of the natural gas required for Methanex-s one million tonne per year methanol plant in Geismar, Louisiana. Commencement of natural gas deliveries will coincide with the startup of the plant, which is expected by the end of 2014.John