Stock index futures added to gains on Friday as Libya said it would cease all military action, sending oil prices sharply lower.

S&P 500 futures rose 16.3 points and were above fair value, a formula that evaluates pricing by taking into account interest rates, dividends and time to expiration on the contract. Dow Jones industrial average futures rose 141 points, and Nasdaq 100 futures put on 22.25 points.

Libya