We have Valero stations up here and someone said that they are Venezuelan. Do you know whether that is true?
It can be complex to account for all Valero Energy stockholders, but control is not at all Venezuelan (that I've encountered mention of) --- though that refiner has long specialized in high sulfur crude, so likely refines a some amount of Venezuelan oil that is imported to the U.S. .
In which ones exactly of it's refineries it would do so (assuming my guessing here is correct) I would not know, and am not interested enough to take the time to go digging for the info.
Valero is NYSE traded with HQ in Texas.
Here’s a list of their refineries.
https://www.valero.com/en-us/AboutValero/Refineries
Is it possible they refine some Venezuelan crude? I suppose so.