Using Oil to upgrade walls

[G of D]

This has been posted before, but I wanted to really write this for the developer's consideration. Allow oil to be used to build walls! As of now, I find that using food and gold for walls (especially later on) can be quite expensive and inbalancing for the civ economy. What ends up happening is that I have absolutely no gold and food, but my oil is at its capacity. As oil projects turn into week long endeavours, I am sitting upon all this black gold without having anywhere to use it. Like many before me, I would humbly ask that oil is added as a resource option!

 

[Seek]

This has been posted before, but I wanted to really write this for the developer's consideration. Allow oil to be used to build walls! As of now, I find that using food and gold for walls (especially later on) can be quite expensive and inbalancing for the civ economy. What ends up happening is that I have absolutely no gold and food, but my oil is at its capacity. As oil projects turn into week long endeavours, I am sitting upon all this black gold without having anywhere to use it. Like many before me, I would humbly ask that oil is added as a resource option!

One thing that is not problem on this game is getting resources gold and food are fine being used for walls. I can fill in just few hits on bases . So this is pointless