Save for later Print Download Share LinkedIn Twitter Europe’s leading jet fuel traders are warning that key overseas suppliers might not be able to respond to resurgent jet economics because of existing diesel commitments. A stream of newbuild very large crude carriers (VLCCs) is heading for the Mideast Gulf to load or at least top up with ultra-low-sulfur diesel (ULSD) for Europe in the coming months, meaning crucial swing producers can’t switch back to jet no matter how profitable.