So about 250 billion set aside in government bonds, to finance that stream of payments. A beginning - doesn't cover the direct and immediate damages, or the interest accumulated in years of delay.Probably on the order of 1-10 billion a year, depending on how you calculated losses.
And about ten times the settlement, much of which has yet to be paid anyway: https://www.justice.gov/opa/pr/us-a...ement-bp-resolve-civil-lawsuit-over-deepwater