Billionaire Bill Koch has listed his expansive ... Shawn O'Connor With Aspen real estate in high demand, Koch and his wife, Bridget Rooney Koch, decided it was time to sell.

Now, it seems he is ready to claw some of it back with the sale of his sustainable Aspen spread, telling the Wall Street Journal that he and his wife, Bridget Rooney Koch, made the decision to let ...

Billionaire energy mogul Bill Koch is looking to cash in ... With Aspen real estate in high demand, Koch and his wife, Bridget Rooney Koch, decided it was time to sell. “[We] looked at the ...