UPDATE 2-Gas exporters' forum should mimic OPEC-Algeria

* Algeria's Khelil: forum should defend members' interests

* Members "failing to share data on supply contracts"

* Gas exporters worried over flagging demand

* IEA doubts producers can control gas prices

(Adds International Energy Agency in paragraphs 11-13)

ALGIERS, Nov 10 (Reuters) - The club of major gas producers should operate like oil exporters' group OPEC in defending its members against low gas prices, Algerian Energy and Mines Minister Chakib Khelil was quoted as saying on Tuesday.

Gas importing countries, particularly in Europe, have expressed concern the Gas Exporting Countries Forum (GECF) could drive up prices by acquiring the same influence over gas markets that OPEC has over world crude prices.

"The Gas Exporting Countries Forum should function like OPEC in its capacity as an organisation which would defend the economic interests (of its members)," Algeria's official news agency APS quoted Khelil as saying.

He said gas prices today were low and called on "the member countries to reach agreement on a strategy for obtaining a fair price for gas", the agency reported.