Boskalis heavy transport vessel BOKA Vanguard is reported to be transporting the semi-submersible drilling rig Transocean Endurance to Ølen, Norway. Vessel tracking service records departure from Singapore Anchorage 3 on 19 October, with arrival estimated for 9 December.
The reported voyage passes through the Sunda Strait into the Indian Ocean. BOKA Vanguard is the world’s largest semi-submersible heavy transport vessel, measuring 275 meters in length, with a 70-meter-wide cargo deck and a maximum breadth of 99.43 meters, according to Boskalis.
Transocean Endurance is scheduled to return from Australia for a two-year Norwegian drilling programme expected to begin in the second quarter of 2027. Transocean has confirmed that plan but has not named the transport vessel.
The assignment is part of Equinor’s three-rig agreement covering Transocean Endurance, Transocean Enabler and Transocean Encourage. Transocean’s 9 October filing confirmed final approval in late September, adding approximately $1 billion to firm backlog across the three rigs.
On its earlier relocation to Australia, Transocean Endurance was transported aboard Xin Guang Hua after maintenance and upgrades at Westcon Yard. FARMAR reported that FFS Athos and four other tugs supported the float-on operation in Ølensfjorden.
