April 23 (Reuters) - AltaGas Ltd ALA.TO :
* ALTAGAS MONETIZES NON-CORE U.S. TRANSPORTATION AND STORAGE BUSINESS AND SIGNIFICANTLY ADVANCES DELEVERAGING PLANS
* ALTAGAS LTD - DEAL FOR APPROXIMATELY $344 MILLION
* ALTAGAS - SALE & CLOSING OF DEAL TO MONETIZE U.S. TRANSPORTATION & STORAGE BUSINESS TO ENTITY OWNED BY SIX ONE COMMODITIES LLC & VEGA ENERGY PARTNERS