Stocks were set for a lower open Monday as a host of mergers and lower oil prices weren't enough to stave off worries about what this week's slew of economic reports will reveal about the U.S. economy.

Futures on the

S&P 500

were 1 point below fair value, and the Nasdaq 100 was set for a 2-point decline at the start of trading.

Acquisitions were the story of the day, as

Kinder Morgan

(KMI) - Get Report

and

Giant Industries

(GI)

both agreed to be purchased. Meanwhile,

Mylan Laboratories

(MYL) - Get Report

struck a deal to buy an Indian firm, and

Unilever

(UN) - Get Report

announced plans to separate part of its European foods business.

On the commodities front, crude oil prices were falling $1.43 to $71.08 a barrel as Tropical Storm Ernesto appeared headed for a northerly track that would steer it clear of the Gulf of Mexico's petroleum infrastructure.

Elsewhere,

eBay

(EBAY) - Get Report

has reached a pact with

Google

(GOOG) - Get Report

to sell advertising on pages users outside the U.S. see. eBay has a similar arrangement with

Yahoo!

(YHOO)

.

To view Farnoosh Torabi's video take on today's market, click here

.