God bless, SH you move too fast! I work at the docks (Houston Ship Channel) at the largest refinery in the country. We load and discharge petroleum products to and from inland barges, ocean going barges, chemical ships, and crude ships. I am what's called a process technician or "operator". There are several posts that we work. We work in the connection gang (they are the ones that moor the ships that come in to the docks, do hose connections/disconnections using cranes, and are the first responders to spills) or work as a dockman (they actually handle the transfer of cargo, discharging of chemicals or oil into the refinery or loading chemicals from the refinery onto the barges or ships). I'm sparing you of all of the boring details of course. But, there is alot of watching gauges.