I think what he is trying to say is that if the price of oil goes up, same goes for the cost of electricity and transport (depends on where you live). If cost of transport goes up, then all kinds of you can buy in the wet and dry market will eventually goes up to. If this is the case then the miners who just using their PCs to mine will need to adopt a small price increase thus transactions fees will go up. I think this is how he/she think what will happened to BTC if the oil price is move.