"Gas costs €35 per mwh for delivery today, but €110 for a guaranteed shipment in December and €142 for one in February, once heaters turn on."
The market is in contago, if you can find a way to store the gas you can make money buying today and delivering in Dec/Jan/Feb.
You could even take delivery in December if you can find storage and sell in Feb and lock in a spread of $32 today. This is the reason you're seeing so many LNG ships outside the coast of western Europe.