Ex-Oxbow Exec Alleges Billionaire Koch Held Him Captive

Law360, New York (October 15, 2012, 2:18 PM EDT) -- A former executive for coal company Oxbow Carbon & Minerals Inc. sued the company’s billionaire owner William Koch in California federal court Thursday, claiming Koch held him captive after he questioned the legality of an alleged tax evasion plan.

According to Kirby Martensen, a former senior vice president at Oxbow Corp. subsidiary Oxbow Carbon & Minerals International, Koch held Martensen against his will at Bear Ranch, Koch's estate outside Aspen, Colo., to interrogate him about allegedly defrauding the company. The interrogation was designed to intimidate him...
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Case Information

Case Title

Martensen v. Koch

Case Number



California Northern

Nature of Suit

Civil Rights: Other


Jacqueline Scott Corley

Date Filed

October 11, 2012


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