An affiliate of Chesapeake Energy Corp. is being sued by the U.S. government for failing to pay taxes in 2001 through 2003. Chesapeake Appalachia LLC is the successor company of Triana Energy Inc., which Chesapeake purchased in 2005 as part of a transaction with Columbia Natural Resources LLC. The deal gave Chesapeake entry into the relatively unexplored Marcellus Shale, with acreage in Pennsylvania, West Virginia, Ohio, New York and Kentucky. According to a complaint filed in U.S. District Court for the Southern District of West Virginia, the United States assessed taxes against Triana in 2001 through 2003 for a total of $431,988, which as of May 17 it "has failed, neglected or refused to pay" (U.S. District Court for the Southern District of West Virginia at Charleston, No. 2:13-cv-11988). Federal officials are seeking the tax assessment and statutory additions accrued.