Fascinating. I wonder how these oil rigs evolved. Who designed the first ones and how they decided on what to include, how much space for each function, etc. Must have been a lot of learning and trial-and-error. Like a ship they have to be somewhat self-sufficient and ready to handle a wide array of problems and situations. Take food for example, how many chefs are needed for a crew of about 200 How much food must be ready for each meal How much storage space for that food for... 2 weeks 2 months Etc. Then multiply that kind of planning out for dozens of other jobs and functions. Must have taken a team of architects and engineers years to figure all this out.