not really true. It also depends on the recruitment requirement of the company when you graduate. When I graduated, Exxon took in about 20+ chemical engineering grads (mostly first class and second upper honours, I think there were some second lowers too). Most of them had done a 6 months assessed internship. Shell on the other hand also provides assessed internship but the number is relatively smaller. There are other alternatives to get in though, like going for a graduate assessment day which will put you through a series of interviews and activities in a packed day to see if you have the attributes the company is looking for. Again, they don't just employ FCH.