Jackson Offshore Operators has extended at least two of its deepwater offshore supply vessels, sending charter coverage to 2020.

The "firm, non-cancellable, long-term contract extensions" include the Lightning and the Squall, both 4,357-dwt vessels built in 2015.

“These extensions demonstrate our clients’ satisfaction with our outstanding service and are a testament to the hard work and dedication of every employee in the [Jackson Offshore Operators] family," said chief executive Lee Jackson.