Where can I find Heating oil in Willisau?

Heating oil can also be found in these cities:

Aarwangen Aesch Affoltern im Emmental Beromünster Buttisholz Doppleschwand Entlebuch Escholzmatt Ettiswil Freiburg im Breisgau Grünen Huttwil Hüswil Kleindietwil Knutwil Madiswil Malters Melchnau Menznau Nottwil Oberkirch Pfaffnau Reiden Reitnau Rickenbach Ruswil Römerswil Schenkon Schötz Schüpfheim Sempach Sursee Triengen Trubschachen Uffikon Wasen im Emmental Wolhusen Zell Zollbrück

You can also find this in Willisau:

Wood Pellets Solar Energy Photovoltaics Thermique Mazout Photovoltaic Mobility Tanks