Birmingham Coal & Coke Co. has filed chapter 11 bankruptcy in the face of a struggling coal market, the Birmingham (Ala.) Business Journal reported today. Cahaba Contracting & Reclamation LLC and RAC Mining LLC, two related companies, also filed for chapter 11 protection reorganization this week. Birmingham Coal and Cahaba Contracting & Reclamation are subsidiaries of Calgary-based CanAm Coal Corp. The companies plan to continue operations as they restructure their debts, according to court filings. The companies have 128 employees and have asked for court permission to continue paying them moving forward.