Rowan Drilling UK is said to be considering reducing its headcount by up to 900 positions.
The Aberdeen-based company is understood to have issued an “at risk notice” to its entire workforce.
According to reports, offshore employees of Rowan Drilling UK North Sea have also received a second communication which notified them the redundancy consultation process had begun.
A letter to staff states the reduction in staff is being made as the company faces the current challenges within the oil industry.
A number of companies including BP, Shell and Halliburton have made redundancies as a result of the oil price decline.
The note to staff says the “dramatic reduction in the price of oil, coupled with escalating costs, has led to a slow-down in drilling activity.”
The company’s three rigs, the Rowan Gorilla V, Rowan Gorilla VII and Rowan Stavanger, have around 300 crews on each.
More to follow.