Billionaire Bill Koch has listed his expansive Aspen estate for $125 million, a significant increase from the $26.5 million he paid for it in 2007. Shawn O'Connor Billionaire energy mogul Bill ...

Bill Koch, a billionaire oil and investments mogul, might be worth $2 billion; however, even by his lofty standards, scoring an astounding $100 million profit takes some beating. That’s nearly ...

When Kansas-born Bill Koch was a newcomer to Cape Cod in the 1970s, he was a frequent guest at the summer home of banking heir Paul Mellon and his wife, the famed gardener Rachel “Bunny” Mellon.

This summary is reviewed by TRD Staff. Billionaire Bill Koch listed his Cape Cod property at 17 Indian Trail in Osterville, Massachusetts, for $23.9 million. The property, which was previously ...

billionaire industrialist Bill Koch is trying again to unload the rest of the property. This time he’s asking $125 million, more than double the 2016 price.