Speaking to the BBC, Gazprom chief of platform Artur Akopov argued that Greenpeace's actions could have caused injury or threatened the environment.
"By coming so close, Greenpeace activists could have damaged the base of the platform, when they threw their equipment, they could have easily injured somebody, or they may have ruptured one of the pipes and caused a diesel spill" he told BBC.
All 30 people who were on board the Greenpeace vessel the Arctic Sunrise, including an Australian, were detained by Russian authorities when armed officials stormed their ship on 21 September. They have since been charged with piracy.
The row has overshadowed the arrival of the Olympic torch in the country ahead of the 2014 Sochi Games.
Greenpeace activist Colin Russell is expected to meet Australian officials again soon, following his arrest and detention in Russia on piracy charges.
Mr Russell, from Tasmania, could face up to 15 years in prison if Russian authorities persist with the piracy charge after he and 29 others were charged for their roles in a protest against oil drilling in the Arctic Circle last month.
Foreign Minister Julie Bishop says she is taking a keen interest in the case, which is shaping up as her first major consular challenge since taking over as foreign minister.
Speaking on the sidelines of the APEC summit in Bali on Saturday, Ms Bishop told reporters that Australian officials have met with Mr Russell in recent days and plan to do so again soon.
She says Australia is seeking advice as to whether the piracy charge is appropriate, describing it as a very serious charge, but noting that Russian President Vladimir Putin has said in one press conference the activists are clearly not pirates.
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