The OMXS30 index, which tracks the most traded shares, is mostly in the red. Boliden falls 6.3 percent while AB Volvo drops 4.5 percent.
Going against the trend is the defense group Saab, which is up 0.9 percent.
Asian stock markets have also fallen sharply overnight as a result of attacks on energy supplies in the Middle East. Among other things, Iran has attacked Qatar's main gas facility.
The New York stock market closed lower yesterday after energy prices rose.
This morning, a barrel of North Sea oil (Brent) is trading at just over $113. The price of gas has jumped more than 20 percent.
One dollar is worth 9.41 kronor and the euro 10.78 kronor.
