A rare rally in the U.S. dollar contributed to the second straight decline for oil prices in New York floor trading. Light, sweet crude dropped $1.04 to $87.56 a barrel Monday, making back-to-back decreases after it touched an all-time high of $90.07 late last week. The November contract traded as the near month for the last time. Elsewhere among energy futures, reformulated gasoline was down about 3.5 cents at $2.13 a gallon. Heating oil fell 2 cents to $2.31 a gallon, and natural gas lost 15 cents to $6.89 per million British thermal units. As for stocks, Halliburton ( HAL) rose 1.2% to $39.33 following its quarterly earnings report, and Schlumberger ( SLB) tumbled again after Friday's selloff, this time giving back 4% to $95.34. Chevron ( CVX) and Exxon Mobil ( XOM) both lost around 1%. The Dow Jones U.S. Oil & Gas Index surrendered 1.3%.