| Kolyarut |
Probably one of the deities referenced in the Oracle description, based on the Mystery chosen by the character: "Unlike a cleric, who draws her magic through devotion to a deity, oracles garner strength and power from many sources, namely those patron deities who support their ideals." I would say that it would be chosen at random at each casting of the spell. So a Flame Oracle using Planar Ally would a 50/50 chance of contacting Sarenrae or Asmodeus, or she could get in Zarongel, Brigh, or others if your GM runs a game with an expanded deity list.