Norwegian oil service provider Aker Solutions has reduced its total headcount by nearly 5,000 jobs since the start of the downturn in 2014.
The firm revealed the figures in its corporate responsibility report for 2016.
The bulk of the cuts were made between 2014 and 2015, when some 3,300 posts were made redundant.
Contractor use has also been slashed from 4,280 employed in 2014 to just over 1,790 on the books in 2016.
Although Brazilian operations were bolstered by an extra 2,000 employees, employee numbers dropped in North America, Asia Pacific, the UK and Norway.
Europe staff not aligned to the British and Norwegian markets were cut back from 112 employees in 2015 to a department of just two (2).
Around 950 people were recruited by the firm last year, down from 1,536 in 2015.
Demographically the bulk of employees, circa 60%, were aged between 30 and 50 years old.
Women made up just more than 25% of the workforce, in line with previous years.
Aker has been contacted for comment.