The Pew Charitable Trusts are doing a series of studies on the fiscal health of US states. Their paper, “From Volatile Severance Taxes to Sustained Revenue” discusses how money received from minerals is a significant cause of volatility in the state government budgets. They also discuss how minerals deplete and often they leave nothing once the minerals are exhausted. While they suggest greater use of permanent funds, they do not go all the way to saving everything in the Permanent Fund, and distributing income only as a Citizen’s Dividend.