PremiumCompany AnnouncementsMitsubishi UFJ Financial Group Gains Substantial Holding in Karoon Energy Karoon Energy Ltd Announces On-Market Buy-Back Karoon Energy Initiates US$75 Million Share Buyback Program PremiumCompany AnnouncementsKaroon Energy Announces Cessation of Securities via Buy-Back Mitsubishi UFJ Financial Group Increases Stake in Karoon Energy Ltd Karoon Energy Ltd Updates on Buy-Back Program PremiumCompany AnnouncementsCitigroup Ceases Substantial Holding in Karoon Energy Citigroup Becomes Substantial Shareholder in Karoon Energy Karoon Energy Announces Changes in Substantial Shareholder Interests