More changes have been announced in Sonatrach’s senior management, this time involving subsidiaries. New heads were named at insurance company Cash Assurances (82% owned by Sonatrach), drilling company Entreprise Nationale de Forage (Enafor), Entreprise Nationale des Services aux Puits (ENSP), Entreprise Nationale des Travaux aux Puits (ENTP), Hyproc Shipping Company and Tassili Airlines (TAL). Cash and TAL are in need of stringent financial controls; the drilling and services companies, like Sonatrach itself, are having to cut costs to reflect low oil prices that have led to projects being frozen.