The $200 million credit backed The Carlyle Group's $300 million majority stake acquisition of the CSX Corp. subsidiary. Carlyle has since phased CSX Lines into its new name, Horizon Lines. Horizon Services Group is the company's cargo management and tracking services unit. The Charlotte, N.C.-based company provides domestic ocean liner services and operates in the U.S., Puerto Rico and Guam. A UBS official declined to comment and an ABN banker did not return calls. Christoph Windmer, v.p. of finance and administration and cfo, did not return calls.