Halliburton and Baker Hughes today agreed to a $35B merger that shrinks the Big Three energy services giants into the Big Two.

Halliburton had threatened to go hostile in the event smaller Baker Hughes decided to fight its takeover overtures.

The boards of the respective company unanimously approved the transaction to create a $52B revenues giant with 136K workers active in more than 80 countries.

Dave Lesar, Halliburton CEO, said the merger creates a Houston-based "global oilfield services champion."

Joele Frank, Wilkinson Brimmer Katcher reps Halliburton on the deal, while Abernathy MacGregor works for Baker Hughes, whose investors will 36 percent of the combined entity.

Schlumberger Ltd dominates the oil patch.