Pros
Great employee benefits. Wonderful bonuses at the start of every year (for corporate employees). Many gatherings/office parties/perks to working. Well paying! A lot of great minds are at Valero. Located in a really accessible part of town. Very good employee cafe at great prices. Upper management is usually easy to speak with.
Cons
The office has this high-school like clique system. Office is stuck with a 'classic' business attitude and can feel a little boring/draining, like every day is the same work over and over. Company E-Mails workers with proclamations to vote 'yes' or 'no' on. Expect a lot of time commitment out of their student workers. The office does not have many part-time workers, so they are not very understanding for those who are still growing their education. Does not promote creative growth of their employees. Office coffee is horrid. (I know this shouldn't be in the cons list, but if you try it - you'll understand).