Energy futures were on the rise Monday as traders hoped that coordinated efforts to fortify the financial markets might brighten the global economic outlook and bode well for petroleum demand. Light, sweet crude for November delivery was up $3.09 to $80.79 a barrel in New York, and Brent crude was gaining $2.62 to $76.71. Heating oil was adding 11 cents to $2.32 a gallon, and gasoline was rising 11 cents to $1.92 a gallon. Natural gas was up 10 cents at $6.63 per million British thermal units. Among stocks, Exxon Mobil ( XOM), ConocoPhillips ( COP) and Chevron ( CVX) were gaining 5% or more. The US Oil ( USO) ETF, which tracks crude oil prices, was little changed, slipping 2 cents to $66.48. Elsewhere in commodities, gold was down $3.50 at $839 an ounce, and silver was unchanged at $10.79 an ounce.