Question: Is it possible to build a worker unit moving on water to build colonies?

I am picturing a worker that can tap resources in coastal tiles (i.e. oil) by building a colony (rig) there- is this possible ? If so, does anybody have an idea of how to make this work (i.e. make the resource reach a port city (pipeline?) without too much mess on the map ? Perhaps PTW may offer some new possibilities in that direction ?

We have tried that WINTER, with no luck.
...and the road biulding doesnt work either.

hmm, any news that might suggest that PTW is going to offer more options ??

No, what I know of...