Dear mod creator.
When placing the oil rig my game poped up with an error and the game sugjested to notify you so I am. (also i did place the oil rig on the oil spawn in the water.)
Last thing im not sure your supost to be able to place the boats on the train tracks.

Thank you for the bug report, always useful information! However, I'm not the OG modder. Contact the original mod creator of Cargo Ships -- https://mods.factorio.com/mod/cargo-ships

I made a mistake in making this as opposed to handling it through other means. I'll be deprecating this soon, unless Cargo Ships isn't kept up with and I become proficient enough to meaningfully contribute it.