61.   The agencies reviewed their operations and energy conservation programs and identified additional ways to lower energy use, particularly electricity, during peak periods.

62.   The authority also imposed a moratorium last year on new flights during peak periods.

63.   The closure comes at a time when U.S. refineries are operating close to maximum levels in order to make gasoline before the start of the peak period of demand.

64.   The closings come at a time when U.S. refineries are operating close to maximum levels in order to make gasoline before the start of the peak period of demand.

65.   The companies will be allowed to charge higher prices during peak periods, but not the huge sums they command today.

66.   The drop in supply comes amid recent problems at refineries in Texas and Louisiana that are producing gasoline at near maximum rates ahead of the peak summer demand period.

67.   The Independence Day weekend, a peak period for demand, was perfect for barbecues -- with cool, clear weather in the Northeast U.S., traders said.

68.   The Independence Day weekend, a peak period for demand, was perfect for barbecues -- with cool, clear weather in the Northeast, U.S., traders said.

69.   The money would allow extra buses to run during peak periods on the busiest segments of the bus routes.

70.   The low inventories come during the peak period of gasoline demand, as vacationing motorists take to the road.