$150/barrel, much higher prices everywhere, less fertilizer, and less oil available could spur a faster turnover.
I ordered some plumbing parts from a well known German manufacturer in February and am still waiting, the retailer can't give me an exact date yet.
Same thing happened a few months ago when I tried to order a network switch, after a month and a half I cancelled the order.
I've just ordered appliances, that I won't need for a few months, just because I don't know how long they will actually take, and maybe on a month the price will have shot up.