81.   Both parties are positioning themselves in this election year to claim credit for setting the country on a course toward less dependence on foreign energy sources.

82.   Burns calls for a domestic energy policy that would include additional oil exploration in the U.S. and the development of alternative energy sources.

83.   But a decade-long slump in world prices and demand, coupled with increasing competition from non-traditional oil and other energy sources, has hit the Saudi coffers.

84.   But EPA officials were deeply concerned about the health effects from unlimited utility competition, which would favor the cheapiest and, potentially, the dirtiest energy sources.

85.   But finding a way to use an on-going, self-sustaining nuclear fusion reaction for a controllable energy source has engineers stumped.

86.   But he is likely to view it favorably, administration officials said, because he has long championed renewable, nonpolluting energy sources.

87.   But for heating water, the country has adopted an alternative energy source into ordinary life.

88.   But not all utility executives are ready to drive a stake through the heart of the renewable energy sources.

89.   But the current scare also serves as a reminder of the failure to stockpile oil and gas reserves and develop alternative energy sources when crude oil was cheap.

90.   But the cells being tested now are powerful, flexible and reliable enough to work as an affordable earth-bound energy source.