Crude oil prices held above $90 per barrel overnight on the New York Mercantile Exchange with support coming from a supply disruption in Europe. Economic news is mixed with equity markets broadly higher around the globe Tuesday and China announcing it would stick to its target of 7.5 percent economic growth for 2013. The supply disruption concerns a shut down North Sea pipeline, which is closed for the third consecutive day due to a leak. Price changes have been muted, however. Tuesday morning, West Texas Intermediate crude oil for April delivery was down 4 cents to $90.32 per barrel. Gasoline added 1.16 cents to $3.1099 a gallon. Home heating oil gained 1.37 cents to reach $2.9327 a gallon. Natural gas added 3.2 cents to hit $3.568 per million British thermal units. At the pump, the national average price for a gallon of regular unleaded gasoline slipped from Monday\'s $3.746 per gallon to $3.737, the AAA Daily Fuel Gauge Report said.