Usilic

Usilic was a Hutt clan widely known during the Cold and Second Great Galactic War between the Galactic Republic and the resurgent Sith Empire. A wealthy and prosperous Hutt of the Hutt Cartel named Drogga was a member and leader of this clan.

Behind the scenes
In the Boonata Hunta of Hutt Space, each planet with the name Kor and the next name being a kajidic, such as Kor Desilijic, seemed to be the throne world for that Kajidic, so it is assumed that the name Kor Usilic is the throne world of the Usilic clan.