Energy megamerger back on track.

Byline: Patricia Koza

Denmark's two biggest energy companies, oil and gas business Dong A/S and electricity provider Elsam A/S, are back at the table in earnest in merger talks that would create a Danish powerhouse valued by bankers and analysts at [Euro]5 billion ($6.1 billion).

The merger of state-owned Dong and Elsam, owned mainly by energy cooperatives, would create a state champion comparable to Sweden's Vattenfall AB or Norway's Statkraft SF.

"The companies agree that a possible merger will imply considerable value creation for both companies' owners," Dong and Elsam said in a brief statement late Thursday.

Dong, whose full name is …