"Currently there are no projects that can substitute the 'South Stream'. We now have to work hard on it together," Yardim said.
Yardim also noted that energy cooperation with Russia was of strategic importance for Turkey, stressing that the sides are discussing potential routes for a new Black Sea gas pipeline.
On December 1, Russian President Vladimir Putin announced that Russia was unable to continue with the South Stream gas pipeline project due to the European Commission's opposition to the project.
The construction of the South Stream pipeline across the Black Sea was announced by Gazprom back in 2012, with the intention that it would insure against potential delivery interruptions due to instability in Ukraine, through which the bulk of Russian gas to European customers is piped. The pipeline was expected to be operational by 2018.