Oïleus (Ὀϊλεύς) was the king of Lokris, and an Argonaut. His father was listed as being Hodoedokus (whom Oileus succeeded as King of Lokris) and his mother as Agrianome (daughter of Perseon), according to Hyginus's Fabulae.
Hodoedokus & Agrianome
Time as an Argonaut
"Oileus, son of Hodoedocus and Agrianome, daughter of Perseon, from the city Narycea."
- Hyginus, Fabulae, 14