Energy services firm Kentz said today that it expected "considerable" revenue growth this year with the backlog of orders rising to record levels. 

Kentz said its year-to-date performance was in line with expectations. 

Its backlog at the end of April reached $4.5 billion, up from $3.1 billion in December 2013. Order intake in the first four months of this year reached $1.8 billion. 

Kentz is a diversified construction company with mining, oil and gas, and infrastructure projects around the world. It listed on the London Stock Exchange in 2008. 

Its customers include Chevron, Royal Dutch Shell, BP and Exxon Mobil.

"Our performance, year-to-date, has been in line with our expectations and we expect that 2014 overall will produce considerable revenue growth for the group," chief executive officer Christian Brown said in the company's interim management statement.