World Fuel Services does look interesting. If it is not them then it looks like a good company to approach. Looks like a lot of potential storage options perhaps stationary and mobile that could use the IoT device.
Just looking at what this one does, with all the fuel transporting, it makes me wonder if the iQStel Blockchain product "Settlement & Payment Marketplace", might be another good product to cross-sell them, or to any such companies really.
Settlement & Payment Marketplace was said to be designed for settlements of telecom services. Maybe it could be used for other transactions, like fuel sales too?