April 18 (Reuters) - AltaGas Ltd ALA.TO :
* Says David W. Cornhill has stepped down as Chief Executive
Officer effective April 15, 2016
* Says David M. Harris, previously AltaGas' President and
Chief Operating Officer, has succeeded David Cornhill
* Says David Cornhill continues to serve as Chairman of
board of directors and founder of AltaGas
Source text for Eikon: ID:nCCNlJ6fS
Further company coverage: ALA.TO