Published: Jan 12, 2011 10:00 PM EST
Updated: Jan 12, 2011 7:00 PM EST

Oil prices rose Wednesday after the government reported a larger-than-expected drop in crude oil supplies and stock markets climbed on Europe's improving financial picture.

Benchmark oil for February delivery rose 75 cents to settle at $91.86 a barrel on the New York Mercantile Exchange.

Oil prices have hovered between $88 a barrel and just above $92 a barrel since the new year began on expectations that the U.S. economy was getting stronger. Demand for oil has remained robust in emerging markets, particularly in Asia. Some analysts expect the price to top $95 a barrel and perhaps push toward $100 a barrel in coming weeks.

 "All systems appear to be "Go" for some higher lift in oil values here, at least through the balance of this month anyway and probably well into next," energy analyst Jim Ritterbusch said.

Gas pump prices continue to climb, with the national average on Wednesday just above $3.09 for a gallon of regular. That's nearly 12 cents more than a month ago and 34 cents higher than a year ago, according to Wright Express, AAA and the Oil Price Information Service.

The Energy Department said the country's commercial oil supplies fell by 2.2 million barrels to 333.1 million barrels last week. Analysts surveyed by Platts, the energy information arm of McGraw-Hill Cos., expected a decline of only 300,000 barrels.

Gasoline supplies increased by 5.1 million barrels to 223.2 million barrels, the Energy Information Administration said. Demand rose 1.9 percent from a year ago to 9.1 million barrels a day in the past four weeks. Supplies of distillates, which include heating oil and diesel fuel, grew by 2.7 million barrels to 164.8 million barrels.

Supplies for all three categories remain at or above the average level for the past five years. Refineries ran at 86.4 percent of total capacity on average, which was 1.6 percent less than a week ago.

Meanwhile, the economic picture brightened in Europe as Portugal borrowed $1.6 billion to help its troubled economy. The successful bond auction sent stock markets up. The Dow Jones Industrial Average rose over 100 points at midday. The Standard & Poor's 500 and the Nasdaq composite were higher as well. Oil traders often watch the stock markets to gauge consumer sentiment about the economy.

In other Nymex trading in February contracts, heating oil rose 0.98 cent to settle at $2.6186 a gallon, gasoline futures fell 1.53 cents to settle at $2.4784 per gallon. February natural gas futures gained 5 cents to settle at $4.531 per 1,000 cubic feet.

In London, Brent crude rose 51 cents to settle at $98.12 a barrel on the ICE Futures exchange.

 ---(equals) Associated Press writers Pablo Gorondi in Hungary and Alex Kennedy in Singapore contributed to this report.

(Copyright 2011 by The Associated Press. All Rights Reserved.)