“To have an orderly transition, oil and gas are part of the solution, not the problem,” said John Hess, CEO of Hess Corp HES.N. Government proposals to halt investments in new oil, gas and coal production "didn't do anything about the demand side or inflation," ConocoPhillips COP.N Chief Executive Ryan Lance told a panel discussion. Subhash Kumar, managing director of India's state-run explorer Oil and Natural Gas Corp ONGC.NS, echoed the warning that consumers and markets are not prepared to make the transition to clean fuels as quickly as some want.