Yes you can get them in oil but you can't cook with them. The ones you had in Italy almost certainly will have been dried penny bun (English name for them), as their season is mid-summer to late autumn. Thing is if you cut your fresh ceps quite wide before drying, when you re-hydrate them they are really quite plump and fresh once cooked.
October before last I made my first fresh cep risotto. I couldn't believe a: how different it was using fresh (much milder flavour) b: how expensive, £14 for enough to make a risotto's worth for one (admittedly a lardy, ravenous, gourmandizing one, with a very good bottle of Barolo).