AGIP is a big oil company in Italy. It is all over Italy and can also be found in other European countries. I've never seen it sold in the USA.
If you are going to pay a low price for the non-synthetic AGIP in bulk, I guess its ok, however if the price is high, you better insist that they use bottles (so you can see that it is in fact AGIP) or else, just bring your own Full Synthetic for them to use.
Lastly, there is nothing special about AGIP (just as there is nothing special about TOTAL and Elf, from France) non-synthetic oils. If they are synthetic, and you see the bottles that say full synthetic, then those are great oils.
Interesting Story about AGIP. Way back in 1959 (hey, I'm old), I stayed at an AGIP Motel in Italy. (AGIP also runs Motels). It cost me $2.00 a night at a time that most American motels would cost $4.00 or $5.00 a night. In 1989, only 30 years later, my wife and I were driving through Italy, very late at night. Saw a big sign for AGIP Motel, near Firenza (Florence), so ok, lets get a room. Went in and asked how much for one night. The guy quoted me something like 185,000 lira which I calculated to be about $128.00 at the time. In the US, in 1989, the price for a motel room was around $35.00 a night. How times change! Needless to say, I told him where he could stick his 185k lira, and we found other accomodations. Have not checked AGIP Motels lately, however at that rate, and with the decline of the US Dollar vs the Euro, they probably cost about $400.00 a night.