Tethys Oil, a Swedish oil company, is primarily focused on onshore areas with confirmed oil discoveries, particularly in the Sultanate of Oman. The company holds interests in Blocks 3&4, Block 49, Block 56, and Block 58, and boasts net working interest 2P reserves of 26.9 mmbo and net working interest 2C Contingent Resources of 13.9 mmbo. In 2020, Tethys Oil had an average oil production of 11,336 barrels per day from Blocks 3&4. Shares of the company are listed on Nasdaq Stockholm under the ticker symbol TETY.