The Surfer 1440 crew boat was boarded at night by the kidnappers.
"An emergency unit based in Nigeria has been immediately activated," Bourbon said.
"Bourbon Interoil Nigeria is in contact with the families [and] supports and informs them regularly. Bourbon will not disclose any more information."
The light, speed and comfort-designed crew boat can transport up to 20 personnel to offshore oil and gas sites.

