I recall when some of the first exploration and drilling took place off Canada’s east coast. One of the companies had boats pushing icebergs out of the way of the rigs...
The Hibernia platform is uniquely designed to resist the impact of sea ice and icebergs. It can withstand the impact of a one-million tonne iceberg with no damage. It can withstand contact with a six million tonne iceberg, estimated to be the largest that can drift into that water depth and only expected once in 10,000 years, with repairable damage.