Lucy Lawless and six other Greenpeace activists have been released from police custody this afternoon.
The protesters were arrested this morning and descended the rig of the Shell-chartered Noble Discoverer around 12pm.
Greenpeace said they considered the action to have been hugely successful.
"When we started this seven of us went up the rig but 133,000 came down with us in solidarity. They're writing letters and we know that new heros are going to spring up in our fervent mission to make sure the oil industry becomes an energy industry is one that is renewable and clean," Lawless said.
The protesters have been bailed to appear in the New Plymouth District Court on Thursday, when they will face charges of burglary.
Lawless and a group of Greenpeace activists scaled the ship's 53-metre drilling derrick and unfurled banners in Port Taranaki at 7am on Friday.
The ship was scheduled to leave the port yesterday to drill three exploratory oil wells in the Chukchi Sea off the coast of Alaska, but the journey was delayed due to the protesters' actions.
Lawless' involvement drew international attention to their cause.
The police climbed the tower this morning to speak with the protesters, and subsequently arrest them. They did not resist.
Lawless, before being arrested, said the battle to save the Arctic had just begun.
Over the course of the occupation, more than 133,000 people sent an email to Shell executives telling them to cancel their plans to drill in the Arctic, causing Shell email systems to overload repeatedly, Greenpeace claimed.
Police said it was too early to say when the protesters, including Lawless, would appear in court.
Steve Abel, a Greenpeace climate campaigner, who was at the Taranaki port, said it was one of the longest lasting occupations in recent history in New Zealand."
"If there was an oil spill in the Arctic it would be impossible to clean up," Abel said. "
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