Carsten Mortensen's new tanker venture Dee4 Capital Partners struck a partnership deal with Marubeni as it closed its first fund after raising $72m.

The former BW Group and Norden boss' private equity company, formed last summer, said the strategic collaboration includes a "significant commitment" from Marubeni to the fund and an investment in Dee4 through Garnet Marine Capital, a wholly-owned subsidiary of the Japanese trading house.