Much like other industrial REITs and just REITs in general it is under a lot of pressure. An economic downturn could lead to more pressure as the need for warehouse/industrial space could fall. It's a tough situation. I hold Granite REIT, which is an industrial REIT in a similar situation. Although the company is frustrating me no doubt with a couple years of relatively lackluster performance, it is just too cheap for me to sell, so I continue to accumulate and hold with the thesis that long-term demand for these pieces of real estate will continue to go up.
If you were to ask me which one I'd rather own, Dream or Canadian Natural, my answer would be Canadian Natural for sure. Cash flow machine, is prepared to weather this oil environment just fine with breakeven points in the $40/barrel range. However, I wouldn't do this move expecting any sort of immediate results. Global recession would no doubt drag down oil prices and buying Canadian Natural here will need a long-term mentality.