It had 15 Indian nationals on board and it was claimed workers had not been paid their wages for several months.
Offshore Supply Vessel Malaviya Seven
A spokeswoman for the Maritime and Coastguard Agency said: “The Malaviya Seven was released from detention at 11.15am on August 4 by the Maritime and Coastguard Agency following the payment of crew wages and repatriation of seafarers with expired employment agreements.”
Jake Molloy, regional organiser for the RMT union, said: “The crew should never have been in that situation in the first place.
“It reflects on the need for greater vigilance on the part of oil companies in this sector to ensure that charters of vessels are conducted through due diligence processes in a way that ensures workers are not being exploited.”
Seafarers’ charity Apostleship of the Sea provided support to the crew during the stay.
Port chaplain Doug Duncan welcomed the news. He said: “It’s wonderful to see.
“I had a message from the captain and one of the crew members last night to say the ship had been cleared.
“It’s very pleasing and they’ve thoroughly enjoyed our involvement during difficult circumstances.
“I got to know them very well. I had them out a few times outwith the port area.
“They enjoyed the days out away from any stress and strain.
“I must admit, I miss them.”