Petroleum gases and other gaseous hydrocarbons

271111 Petroleum gases and other gaseous hydrocarbons; liquefied, natural gas 271112 Petroleum gases and other gaseous hydrocarbons; liquefied, propane 271113 Petroleum gases and other gaseous hydrocarbons; liquefied, butanes 271114 Petroleum gases and other gaseous hydrocarbons; liquefied, ethylene, propylene, butylene and butadiene 271119 Petroleum gases and other gaseous hydrocarbons; liquefied, n.e.c. in heading no. 2711 271121 Petroleum gases and other gaseous hydrocarbons; in gaseous state, natural gas 271129 Petroleum gases and other gaseous hydrocarbons; in gaseous state, other than natural gas