Hey Mark,
Not too familiar with this US stock. From what I can tell, it provides compression services to the oil & gas industry. Primarily, it provides services to the US Shale industry.
Is it safe? I don't think I'd deem any stock that is tied to the cyclical nature of the oil & gas industry as being 'safe'. The reality is, they are tied to the investment of the industry and in good times the company is likely to do well (like this year up almost 30%) and in a bear market it won't be. Much like many oil & gas stocks, this company was relatively flat for most of the previous decade with a few significant drops. While we do see the oil & gas industry maintaining current momentum over the short term, I would never refer to a stock in the industry as being 'safe'. We've seen time again how the bottom can fall out of this industry.
Mat