British Petroleum, which is part of the Shah Deniz consortium - a key supplier of gas from an Azeri field to the planned Nabucco pipeline, said it is considering shorter alternative options for the pipeline.
The pipeline was originally designed to run from the Caspian region to Austria via Turkey.
BP is now looking at possibilities to ship gas just from the Turkish border to Central Europe, the company's head of refining and marketing, Iain Conn, said in Berlin last week. A transcript of his speech was published on BP's website.
BP operates the Shah Deniz II gas field in Azerbaijan. It and Norway's Statoil own 25.5% stakes each in Shah Deniz. Azerbaijan's state-owned company Socar, Russia's Lukoil Holdings, France's Total and the National Iranian Oil Company all own 10% each, while Turkey's TPAO controls 9.0%.