At the request of Tethys Oil AB, Tethys Oil AB option rights will be traded on First North as from April 17, 2008. Security name: Tethys Oil AB TO Short name: TETY TO2 ISIN code: SE0002384339 Round lot: 300 Orderbook ID: 54555 OTC Orderbook ID: 54556 Terms: Issue price, 23 SEK per share Every 5 shares entitles to 1 option right. 1 option right gives the right to subscribe for 1 new share in Tethys Oil AB Subscription period: June 01, 2008 – June 30, 2010 Last trading day: June 25, 2010 This information is distributed at the request of the Certified Adviser, Remium AB. For further information, please call Henrik Acklén on +46 8 454 32 00.