US STOCKS-Futures edge lower, still close to record index highs
* Dow, S&P 500 coming off record closing highs
* Volume likely to be light in holiday week
* Crude oil rises, could support energy shares
* Futures down: Dow 44 pts, S&P 5 pts, Nasdaq 6.5 pts
By Ryan Vlastelica
NEW YORK, Dec 29 (Reuters) - U.S. stock index futures were slightly lower on Monday, as investors found few reasons to keep pushing shares higher following a sharp rally that has taken major indexes to repeated records.
* The Dow has risen for seven straight sessions, the longest streak for the blue-chip index since March 2013, while the S&P 500 is up 5.9 percent over the past seven sessions, ending at its 52nd record close of the year on Friday.
* The speed and scale of the rally could make further gains difficult to come by, especially in the final trading week of the year, when many market participants are out on holiday and there are few trading catalysts. Trading volume is expected to remain light, which could leave the market more susceptible to big swings.
* Energy shares will continue to be in focus as crude oil rose 1.1 percent to $55.34 on concerns about disruption to exports from Libya. Oil has dropped in 12 of the past 13 weeks, weighing on the S&P energy index, which is by far the weakest sector of the year, down 9 percent. Continuación...