An ever more diverse mix of financing models will be required from private equity to local banks, but demand is expected to be met as the industry rebounds from the worst financial crisis since the Great Depression, Peter Gaw of Standard Chartered Bank told panelists at the 21st World Petroleum Congress.

“The real question is, can the market provide $20 trillion in capital for the next 20 years?” said Gaw, who heads up the bank’s global oil, gas and chemicals business.