27050000 Coal gas, water gas, producer gas and 5 US 0. similar gases, other than petroleum . gases and other gaseous . hydrocarbons. 2706 Tar distilled from coal. from lignite or . from peat, and other mineral tars, whether or not dehydrated or partially . distilled, including reconstituted tars: 27060000 Tar distilled from coal. from lignite ...