He was speaking to reporters on the sidelines of a meeting of the joint ministerial committee which oversees implementation of the global deal. Sunday's meeting will not discuss an exit strategy from the supply cuts, he said.

The current oil price level is healthy for investment in the oil industry and for the global economy, Rumhi added, saying there was concern about a lack of investment in the industry. Brent crude is just below $70 a barrel.

Rumhi also said that global oil producers were due to discuss in November this year whether to renew their cooperation agreement on supply cuts or enter a new type of agreement. Oman is in favour of reaching a new type of deal, he said.

(Reporting by Rania El Gamal and Maha El Dahan; Writing by Andrew Torchia)