From Reuters: Norway’s sovereign wealth fund on Wednesday threw a spanner into U.S. investor Warren Buffett’s deal to take over Constellation Energy, seeking to buy time to evaluate a rival bid by Electricite de France.

Norway’s $339 billion oil fund said it filed a law suit in a Maryland court to delay a Dec. 23 Constellation shareholders’ meeting due to vote on a takeover by MidAmerican Energy Company, a unit of Buffett’s Berkshire Hathaway Inc …. Full Article: Source