Crude oil closed higher Tuesday, adding 52 cents to $96.65 per barrel in New York. On the New York Mercantile Exchange, reformulated blendstock gasoline added 1.42 cents to $3.0314 per gallon. Heating oil added 2.98 cents to $3.1901 per gallon. Natural gas added 9 cents to $3.418 per million British thermal units. At the pump, the national average price of unleaded gasoline rose to $3.533 per gallon from Monday\'s $3.523 per gallon, AAA said. The national average price at gasoline stations has gained 23.4 cents in the past month. Out of that, the price has jumped 16.9 cents in the past week, AAA said.