Secessionism is quite high in east Libya because that is the only way that Haftar can take ownership of the Libyan oil exports. If Libya does secede then nobody can benefit from the oil, as the East only has the infrastructire and the West is the one that provides the engineers, the bureaucracy, the labour and the economic infrastructure like banks, etc to actually function as an oil exporter. The individual provinces receive proportional amounts of money from the proceeds to their populations, and the East doesn't get as much as Western Libya by virtue of it being sparsely populated. The issue is that the funds can make things cheaper for places like Tripoli, Benghazi, Misrata and Sirte to use the money effectively due to lower upfront costs, but it isn't an issue of injustice, but more of an issue of there not being enough people in Eastern Libya.