How is it that they are not being targeted by US antitrust laws? I'm no expert in oil services business, but as far as I recall, Schlumberger is the only competitor left.
"The merger is widely expected to raise anti-trust concerns" http://www.reuters.com/article/2014/11/17/us-bakerhughes-off...
You see the same thing when large American companies merge, they often have to get approval from the EU and increasingly Asian anti-trust authorities.