March 12 (Reuters) - AltaGas Ltd ALA.TO :
* ANNOUNCES AGGREGATE $550 MILLION MEDIUM TERM NOTE OFFERING
* OFFERING IS EXPECTED TO CLOSE ON OR ABOUT MARCH 16
* OFFERING IS BEING MADE THROUGH A SYNDICATE OF INVESTMENT DEALERS
March 12 (Reuters) - AltaGas Ltd ALA.TO :
* ANNOUNCES AGGREGATE $550 MILLION MEDIUM TERM NOTE OFFERING
* OFFERING IS EXPECTED TO CLOSE ON OR ABOUT MARCH 16
* OFFERING IS BEING MADE THROUGH A SYNDICATE OF INVESTMENT DEALERS