Yes, but only via some finagling. A potion/oil only has one target normally, and the imbiber may not select additional targets even if he would be allowed to normally as the caster of the spell. However, a number of spells that can be made into potions affect creatures other than their direct target(s) in some way. None of the methods of doing this involve any decisions normally made by the caster at the time of casting, as:
Potions are like spells cast upon the imbiber. The character taking the potion doesn't get to make any decisions about the effect—the caster who brewed the potion has already done so.
A cursory overview of ways spells do this by means of example follows:
Wandering Star Motes: because this spell can acquire new targets after being brought into effect, it can be used to affect other creatures (though the initial target must be the imbiber).
Enlarge Person: This spell's effect changes how the drinker can affect others in some ways, and so affects them indirectly. This is how most potions work.
Moment of Greatness: This spell is capable of being made into a potion, but also affects those in an area. The area effect functions as normal, and may affect various creatures other than the imbiber.
Draconic Reservoir: This spell gives the subject of the spell the ability to make choices about the spells' effects, including the targets of some possible new effects. These choices may still be able to be made by an imbiber.
Blood Scent: This spell has multiple targets. While the imbiber cannot make use of this, technically the potion's creator could, though things might go badly if the potion was used in the wrong circumstances. In order to target multiple creatures, the creator would need to make all the choices normally made when selecting a target at the time of casting when the potion is made. What those choices are is unclear RAW, but at a minimum includes enough information to uniquely identify who would be affected regardless of when the potion is used.
The imbiber must certainly still be a target, but it is possible that other targets may be added, as target selection is a choice normally made while casting the spell and the rules do not anywhere expressly forbid multi-target potions.
See also: Volatile Vaporizer
Best Answer
Assuming you're limited to just potions, the very best you can do is a CL 15 potion of cure serious wounds. That would heal for 3d8+15, and cost 2250g. This is assuming you can find a level 15 caster to brew them for you.
However, if he has an alchemist friend with the Infusion discovery, and his ability allows him to drink extracts, then the best he could do is a CL 15 Heal extract, which would heal for 150. I'm not sure how you would price such an extract, but if you use the potion pricing rules, it would cost 4500g.