Dof has secured an extended contract for one of its construction vessels in Brazil.
Chevron Brazil will hang onto the 16,200-bhp Skandi Salvador (built 2009) for a year from September.
Dof tells investors the lengthened charter is worth NOK 250m ($41m).
The Brazilian built Skandi Salvador has been on hire to Chevron since its delivery in 2009.
Shares in Dof were changing hands at NOK 29.90