WARSAW (Reuters) - Poland's second biggest refiner Lotos said on Friday that it expects oil supplies from Iran to arrive in Gdansk port at the Baltic Sea on August 14.

The state-run Lotos said that the tanker Atlantas with 2 million oil barrels has reached the Danish straits and due to draft limits it has to transfer around 700.000 of barrels on a smaller vessel before it enters the Baltic Sea.

The supplies are a result of an agreement signed earlier this year between Lotos and National Iranian Oil Company. The cargo is the first Iranian crude sold into this part of the Baltic Sea market since January's lifting of sanctions.

In June trade sources said and ship-tracking data showed that the supertanker with Iranian crude is heading towards Gdansk.

Lotos, which now refines mostly Russian oil, also said that it is prepared to take oil from Iran, Saudi Arabia, Iraq and other directions.

"Ultimately we want to select a few types (of oil) and form a stable mix, which would give us most advantages," Lotos chief executive officer Robert Pietryszyn was quoted in a statement.