Leiden-based Heerema Marine Contractors has completed a year-long installation of deep-sea oil drilling equipment at the Tombua Landana site off the coast of Angola for oil giant DSME/Chevron in a water depth of 370 m.

In December, HMC's ship Thialf installed a 30,000 tonnes tower bottom section, the tower top section and four platform modules on top of a tower the height of New York's Empire State Building to finish the project. Five barges and eight tugs assisted in the installation work.