The weekend's attacks on Saudi Arabian oil refineries is a good thing for the tanker market, according to Nordic American Tankers.

The Herbjorn Hansson-led shipowner said in a letter Monday "that political uncertainty of this nature is normally good for the market" — echoing comments by the suezmax specialist after a previous spate of Middle East violence.

"The shortfall of oil exportation from the Middle East to the Far East can be expected to be taken up by exports from suppliers further away such the US, Brazil, the...