"Yemen's rebels have announced they have triggered this attack. That is not very credible, relatively speaking," the minister, Jean-Yves Le Drian, told C News television.
"There is an international investigation, let's wait for its results. I don't have a specific opinion before these results," he said, adding the investigation into the Saudi oil attacks will be fast.
The Trump administration and Saudi Arabia have pointed the finger at Iran for the Sept. 14 raids, which hit the world's biggest crude oil processing facility and initially knocked out half of Saudi output.
Iran, which supports the Houthi group, has denied any involvement in the attacks.