Petroliana

Petroliana was a privately-held American state in the New Zion region, owned and managed by the Holyfield Oil Company, originally headquartered in Pacifica. It was founded and lead by wealthy soldier Jehohanan Holyfield, who was given the region by President Charles Oswald to run as he saw fit. In exchange, Holyfield used his own company and security forces, freeing up American troops desperately needed to continue pressing the fight southward during Operation: Manifest Climax. Over the years, Holyfield became known as the "Petrol-Sheik" due to his iron grip on the region and the massive inspiration he took from Rashidi Arabia and Arab culture in general. 
Before Manifest Climax, the region that would make up Petroliana consisted of several Catholic-majority Latin-American nations, but most of it was formed from the ruins of Gran Colombia. Like all other Latin-American nations, Gran Colombia was officially erased at the end of Manifest Climax.