@investa, for oil barrels I use a friend of mine but he is able to bring only 1 liter a time when he fled to the middle east for work....it will take a while to make a barrel!
Anyway, I was talking about online trading....I want to start to trade commodities (future and other derivates) but I do not know where to start from, is there something like Bitfinex for trade these assets?
fract
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@caimano, You need to contact your local investment bank that offers broker services.