A lot to unpack here, but I'll just focus on Venezuela.
1. Diesel prices are being driven by a product shortage, not a crude shortage.
2. Venezuelan barrels, even if they arrive, do not automatically become extra ultra-low-sulfur diesel. They have to be processed in the right units, and those units are already full.
3. Oil already in tanks and pipelines, and product already refined, does not reprice instantly just because a new source of crude exists on paper.
When individuals do it it’s gouging. When BIG OIL does it it’s business as usual.