[quote=@Lonewolf685]
Richard: strikes the largest recorded vein of oil right beneath the city. "Don't suppose I can buy the rights to this useless black water off of someone?"
[/quote]

If Richard found oil, he would be really a lucky guy. All oil deposits have a layer of highly compressed natural gas over them (in fact, it's the gas pressure that makes the characteristic "squirt" of an oil well). He would have a huge pile of highly flammable gas on his hands.

If Gil would like Uruk being blown to bits by it, or not, that's left to be seen.