Interesting thing, the EU...
In Germany the railways pay tax on their diesel fuel and also the mandatory "ecology surcharge" which is applied to all energy consumption (private and corporate consumption) - therefore also on the electricity used by train engines (in GER, most mainlines have electric power instead of Diesel engines).
So, here the railways are complaning that they are paying taxes that the airlines don't have to pay as they don't pay taxes on kerosene...