Delek Drilling was founded by Avinoam Finkelman and served as the search department of the Delek group, then controlled by the IDB group. The partnership was founded with an agreement signed on July 1st 1993 between Delek Drilling Management (1993) Ltd as a general partner and Delek Drilling Trusts Ltd as a limited partner. The Partnerships holdings include Yam Tethys Ltd, Delek Drilling (Leviathan Finance) Ltd, Delek Drilling (Yam Tethys Finance) Ltd, Delek and Avner Yam Tethys Ltd and Delek Drilling (Tamar Finance) Ltd.[3]