April 30, 2013
A California federal judge refused Tuesday to dismiss most claims brought by a former Oxbow Carbon & Minerals Inc. executive accusing the company's billionaire owner William Koch of holding him captive after he questioned the legality of an alleged tax evasion plan.
January 17, 2013
Billionaire Oxbow Carbon & Minerals Inc. owner William Koch asked a California federal judge Wednesday to dismiss a former executive's suit, saying the executive's claim he was held captive after questioning an alleged tax evasion scheme was retaliation for fraud claims against him.
October 15, 2012
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.