...their oil (which seems as logical a reason as any), then he hasn't spoken to any experts (which is also what you would expect from Trump). Those experts would have told him that Venezuela extracts "heavy, sour" oil; i.e. it contains a lot more of the dense, heavy hydrocarbons (so it requires much more "cracking" and processing--some of which is highly hazardous--to get the lighter fractions). Worse yet, it is full of sulfur, which causes corrosion problems and has to be refined out. Venezuelan oil--unlike the prized lighter oils from the Mideast--is challenging to process and requires purpose-built refineries.
https://www.strausscenter.org/energy-and-security-project/venezuela/
This is probably why we're not seeing anyone from the old neocon "bomb-Iraq" movement signing on for Trump's idiotic regime-change policies in Venezuela. My guess is that Trump thinks he has found another exploitable political class:Venezuelan exiles in the US (similar to the Miami Cubans). With Donald Trump, absolutely everything is transactional.