FRANKFURT, May 31 (Reuters) - The European Central Bank announced the following results for its latest liquidity providing operation: Main Refinancing Operation-Allotment Intended Volume: Reference Number: 20160049 Min Allotment: Transaction Type: Reverse Transactions Fixed Rate: 0.00 % Operation Type: Liquidity Providing Max Bid Limit: Procedure: Standard Tender Max Bids per Cpty: 1 Tender Date: 31/05/2016 11:15 Marg. Rate: Start Date: 01/06/2016 % of All. at Fixed Rate: 100 Maturity Date: 08/06/2016 Tot Amount Allotted: 51905.4 mn Duration (days): 7 Weight. Avg. Allot. Rate: Tot Bid Amount: 51905.4 mn Auction Type: Fixed Rate Tender Tot Number of Bidders: 115 Allotment Method: Min Rate (bids): Max Rate (bids): Estimate on 31/05/2016 of the average autonomous factors for the period 30/05/2016 to 07/06/2016 amounts to EUR 699.8 bn. Benchmark allotment based on the ECB's liquidity forecast as of 31/05/2016 amounts to EUR -624.0 bn. For general information on the calculation of the benchmark allotment amount, please see www.ecb.europa.eu/mopo/liq/html/index.en.html as well as ECB page Operational Communications.