GulfMark Offshore has slumped to a first quarter loss of $128m after the company was forced to make impairment charges of $116.6m.

The US-listed offshore vessel operator saw revenue for the three months decline over 56% to $38.8m, according to figures released late Tuesday.

"We are pleased to have generated positive cash flow from operations despite difficult market conditions,” said GulfMark Offshore chief executive Quintin Kneen.

“Our