Billionaire Rich Kinder surprised the energy sector Sunday, unveiling a deal to combine the four publicly traded companies he controls into one single entity.

Kinder Morgan KMI +10.71% Inc. (KMI), will acquire Kinder Morgan Energy Partners (KMP), Kinder Morgan Management (KMR) and El Paso Pipeline Partners (EPB). The acquisition price will be roughly $71 billion, including $40 billion in stock, $4 billion cash and $27 billion in assumed debt.