I hope it won't require that land titles actually change hands.  Palestine has certainly proven (as have other areas) that problems resulting from "political" solutions to land ownership can get very ugly. Hopefully, sufficient advantages for both countries can be found to justify the creation of a joint operating arrangement for something like a dedicated and utility corridor and a relatively small amount of land for construction of a marine terminal.  I suppose there would always be "security" concerns for Bolivia that might make those kind of arrangements difficult over the long term, but an operation agreement is something that would make negotiation of any disagreement more probable, if it were to come to pass, whereas land ownership issues have the capacity to quickly develop into one of national pride and consequent use of military force.  Especially since the geometry of any territory involved would more than likely be difficult for Bolivia to defend anyway.  I think there must be more and more mutually beneficial energy related agreements that will be made amongst the (presently) "lesser powers" in the world.  By that, I mean all those guys that don't have the history or capability of "stepping on someones toes" to get them to give in, or those that realize that, if they do try it, it usually is counterproductive in the long term.  Taming the toe-breaking habit seems harder than quitting smoking.