Three panellists presented with such a question at the opening day of the 21 World Petroleum Congress in Moscow on Monday epitomised this split in attitude, bringing markedly different perspectives from contrasting global markets.

“It is amazing how different answers oil and gas companies are giving to the same question,” said Didier Holleaux, chief executive of GDF Suez E&P International

 “The (real) question at the end of the day is: what is fitting with your own company’s strategy?”

He continued: “We have no interest in resources, we have only an interest in reserves – because there is nothing you can do with resources unless you turn them into reserves.”

Holleaux