We are shareholders of Spectra Energy Co. (USA) which merged with Enbridge Inc (Canada), what tax forms or statements do we need to have on our taxes?

Spectra Energy Corp. (USA) merged in 2017 with Enbridge and is now a Canadian Company. I have an NR4 form & T5008 Protected B form (fractional amount sold that was not carried over) as well as a 1099-DIV, how do I add this to my taxes? Do I need a statement to indicate the merger/exchange since Spectra Energy Corp. no longer exists?