.When it comes to energy, Jarand Rystad is the numbers guy. The former McKinsey & Company partner founded Oslo-based Rystad Energy, an independent research and energy intelligence company that sells data and analysis on oil, gas, coal and renewable forms of energy.A physicist by training, Rystad is an optimist about the chance of containing climate change through introducing new technologies. He brings numbers to back up his views, based on the company’s extensive databases.