Reuters: French oil and gas giant Total (TOTF.PA: Quote, Profile, Research, Stock Buzz) is targeting nuclear energy to drive growth long after oil and gas output peak, a top executive said on Monday. “In the future, energy demand will be constrained by tight supply,” Arnaud Chaperon, Total’s senior vice president for electricity and new energies, said in a presentation to a nuclear energy conference in Qatar. “Oil and gas will still play a big role in the energy balance. But in the …