I've read similar about the oil, either them buying it directly or at least facilitating the sale of it to others.
Their stance with the Kurds when Kobane was on the cusp of destruction was particularly sour, not really welcoming refugees in nor would they allow any existing refugees cross back over and defend their land. They've had this thing with Russia now too, which I think is more to do with who the Russian's were targetting, people with some sort of ancestral link to Turkey, rather than them encroaching on Turkish airspace.
They seem to use their position on the edge of the Arab nations to distance themselves from becoming too Westernised and give themselves a bit of breathing space from toeing the EU line but then fall back on that EU support when someone from outside comes knocking, like Russia or other neighbours they can't be arsed with.