U.S. stock-index futures edged higher on Friday, a day after the S&P 500 closed at another record high, with the benchmark on track for weekly gains.
Energy costs continued to rise as markets mulled the news that President Barack Obama will send up to 300 U.S. military advisers to help Iraq battle Sunni insurgency.
The price of Brent crude oil hit a nine-month high above $115 on Friday, while crude futures for July delivery rose 60 cents to $107.03 a barrel in early trading on the New York Mercantile Exchange.
Capital Spreads said that while Iraq was weighing on sentiment, markets were still propped up by loose monetary policy around the globe.
"Investors are wagering on continued relaxed monetary policy in Europe and the U.S. for a while yet," analysts wrote in a research note on Friday.
No economic data is due during the day and no major companies are set to report quarterly earnings. Stock and index derivatives, like options and futures, are due to expire on Friday in a process known as quadruple witching. This is likely to increase volatility.
"Shire's rare diseases business is one of the hottest assets in biopharmaceuticals," said Panmure Gordon analyst Savvas Neophytou in a research note on Friday.
"AbbVie may be able to increase its offer to more than £50, which we believe will be required to make this deal happen."
Plus, shares of American Apparel will be eyed after Dov Charney was fired by the company's board after unspecified allegations of misconduct.