(4-traders.com) Oct. 21--Patriot Coal Corp. and the United Mine Workers of America filed suit Monday against Peabody Energy Corp. to force it to pay $145 million for union retiree benefits. Patriot and the UMWA are asking a Virginia bankruptcy judge "to prevent Peabody from evading" its remaining two payment obligations to the Patriot Retirees Voluntary...http://www.4-traders.com/PATRIOT-COAL-CORPORATION-15657745/news/Patriot-Coal---UMWA-suing-Peabody-Energy-over-benefits-funds-21241459/