This is just pure luck I believe. Gazprom (russian oil company) had a dispute with Ukraina about routing of gas pipelines trough Ukrainian teritorry and prices Ukraina had to pay.
They settled the dispute and I believe Ukraina has to to pay much more for Russias natural gas than before. They paid 5:th of market price before, but now they have pro-west goverment and Putin decided to punish them.
That move probably pumped gas prices and they are likely to climb further during winter. Euro winter isn't over and it's going to get colder. I also heard that Gazprom stock is officially released for trade in Russia tomorrow which should trigger a short spike.
Of course, warrants are highly volatile and probably more akin to gambling than investment/saving.