NEW YORK - A sharp drop in the price of oil Monday rattled investors and helped push stocks lower across several industries.

Investors sold from the start of trading following a decision by the Organization of Petroleum Exporting Countries last week not to cut production. Benchmark U.S. crude dropped nearly 6 percent, deepening its stunning 11/2-year plunge, to close at its lowest level in nearly seven years. The losses were broad, with seven of the 10 industry sectors in the Standard & Poor's 500 index closing lower.

As they have all year, oil drillers bore the brunt of the selling. Chevron and ExxonMobil, both members of the 30-stock Dow Jones industrial average, each fell nearly 3 percent.

"There was a big hope that OPEC would announce a production cut, but it just didn't happen," said Mizuho Securities chief economist Steven Ricchiuto. He added: "The whole world is facing excess supply as the global economy slows."

The Dow gave up 117.12 points, or 0.7 percent, to 17,730.51. The S&P 500 fell 14.62 points, or 0.7 percent, to 2,077.07. The Nasdaq composite dropped 40.46 points, or 0.8 percent, to 5,101.81.

Airlines stocks were among the winners as investors anticipated bigger profits thanks to falling fuel costs. In theory, lower oil prices should help many stocks, because consumers often spend money elsewhere when they save at the pump or on heating bills. But investors have been disappointed.

"Retailers have been waiting for the pump-price dividend to filter into their stores, but for the most part we're not seeing it," said Jack Ablin, chief investment officer at BMO Private Bank.

Meanwhile, the shift in the United States to producing more oil has made the stock market more vulnerable to price swings in the commodity.

In each of the last three quarters, as oil prices have tanked, earnings per share for energy companies in the S&P 500 have dropped more than 50 percent, according to S&P Capital IQ, a financial data provider. After Monday's drop, their stocks are down 22 percent since the start of the year.

Among other stocks making big moves:

Chipotle Mexican Grill dropped $9.45, or 1.7 percent, to $551.75. The restaurant chain warned late Friday that an outbreak of E. coli linked to its restaurants sent sales plummeting by as much as 22 percent in recent weeks.

Keurig Green Mountain soared 72 percent after agreeing to be acquired by a private equity firm. The stock jumped $37.19 to $88.89.

U.S. crude fell $2.32, or 5.8 percent, to close at $37.65 a barrel on the New York Mercantile Exchange, its lowest price since Feb. 2009. Brent crude, used to price international oils, fell $2.27, or 5.3 percent, to $40.73 a barrel in London.