TETHYS OIL AB revenue for the last year amounted to 1.40 B SEK, the most of which — 1.46 B SEK — came from its highest performing source at the moment, Producing Assets, the year earlier bringing 1.58 B SEK. The greatest contribution to the revenue figure was made by Oman — last year it brought TETHYS OIL AB 1.47 B SEK, and the year before that — 1.58 B SEK.