gzt: From the article. I have heard a number of people say this:
"anything at sea can’t be counted on, he says, as other countries can outbid us and divert the ships."
I have heard no credible evidence at all to support that.
... I mean, capitalism. I think if it was going to happen to our fuel it would have already happened - the last ones to sail from Asia to Australia and New Zealand are only a couple of days out now.
Potentially a greater chance of it happening when the first tankers to leave after it's really over set sail, because even if traffic resumes tomorrow, that won't be for another few weeks yet as they still have to get from the Gulf to Asia, unload and be processed. By then we will be in proper crisis mode.
And despite what Trump is loudly proclaiming at the moment, there doesn't seem to be a huge surge of tankers entering or leaving the Persian Gulf. There are some going out, but they are broadcasting that they are either Indian or Chinese crewed/destined, and they've been getting those through OK for a couple of weeks now. Not relevant to our situation, really. It ain't over till the insurance companies say it's over.

