Romney's No. 5
William Koch, 72, an industrialist whose South Florida-based energy and mining conglomerate is worth an estimated $4 billion.
Total: $3 million
Koch has given $3 million to the Restore Our Future, including a $250,000 personal donation and $2.75 million through his corporation, Oxbow Carbon LLC, and a subsidiary, Huron Carbon.Â Unlike his brothers, Charles and David Koch, who are longtime supporters of Republican and conservative causes, Bill Koch has funded both GOP and Democratic Party candidates in the past. Koch's corporate interests have repeatedly battled against what company officials have decried as government interference. Oxbow spent $570,000 last year on lobbying in Washington, mostly aimed at mining, safety issues and climate change. The company has complained in federal filings about government delays on permits and has raised concerns about administration changes in regulations that would aid collective bargaining. Koch also has pushed for approval of the Central Rockies Land Exchange, a proposed swap of land tracts in Colorado and Utah to enlarge his 4,500-acre Bear Ranch. The proposal, which requires congressional approval, has sparked local opposition.
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