Caeruleo 6 is the sixth planet in the Caeruleo system, 2.14 light-years from the Nivenia System. Caeruleo 6 is extremely valuable to the Nivenian Empire due to the gigantic petroleum ocean under its atmosphere. Unlike most ice giants, Caeruleo 6 has a high abundance of hydrocarbons in its upper mantle, with an ocean of hydrocarbons hundreds of kilometers thick under the thick hydrogen envelope. As the Nivenian Empire, particularly the Megastructural Construction Corporation, is in need of carbon for megastructure construction, this planet is particularly valuable. However, the strong gravity well means that this opportunity cannot be adequately developed until there is a substantial amount of infrastructure in the system.