US stock futures are falling to start the week as big companies post quarterly results

US stock futures are drifting lower ahead of the opening bell as more companies line up to post quarterly results. Halliburton edged up after reporting higher earnings and sales in the second quarter.

KEEPING SCORE: Dow Jones industrial average futures fell 39 points, or 0.2 percent, to 16,999 as of 8:41 a.m. Eastern time. Standard & Poor's 500 index futures fell five points, or 0.2 percent, to 1,967. Nasdaq 100 futures slid four points, or 0.1 percent, to 3,926.

DRILLING: Early Monday, Halliburton, the oil and gas servicing company, said that its second-quarter earnings rose 20 percent and that it plans to buy up to $6 billion of its own shares. Revenue came in higher than analysts' estimates. Halliburton's stock rose 56 cents, or 0.7 percent, to $71.41 in premarket trading.

HASBRO: The toy maker Hasbro turned in second-quarter earnings and revenue that fell short of analysts' targets. Rising sales of My Little Pony, Transformers and other toys weren't enough to stem a decline in sales of games such as Twister. Hasbro's stock sank $1.96, or 3.6 percent, to $51.25.

EUROPE: Major stock markets in Europe headed lower Friday. Germany's DAX sank 1 percent while France's CAC-40 lost 0.5 percent. Britain's FTSE 100 was off 0.4 percent.

BONDS AND OIL: Bond prices barely moved in the market for U.S. Treasurys. The yield on the 10-year Treasury note was 2.48 percent, unchanged from late Friday. Benchmark U.S. crude oil rose $1.24 to $103.19 a barrel on the New York Mercantile Exchange.