UPDATE 1-Offload issues for LNG tanker at Northeast Gateway

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NEW YORK, Dec 18 (Reuters) - Excelerate Energy said the Express LNG tanker at the Northeast Gateway terminal, offshore Boston, experienced offloading issues, but a second tanker was expected to dock at the site on Friday.

A source familiar with the operations at the Northeast Gateway said the issue was a mechanical, regasification problem on the tanker. The Excellence LNG tanker was expected to begin offloading at a second buoy on Friday.

The Northeast Gateway deepwater port is a buoy-based offshore receiving facility located in Massachusetts Bay, about 13 miles from shore.

Sixteen miles of pipeline connect into the Algonquin Gas Transmission system from the Northeast Gateway.

Spectra Energy's SE.N Algonquin Gas Transmission unit said in a related notice that the facility had encountered a loss of production for Friday.

A Spectra spokeswoman said that, while the issue was shipper-related and not pipeline related, scheduling on its system had been reduced due to the decrease in supply.

The 1,120-mile Algonquin system transports 2.2 billion cubic feet per day of supply throughout New England. (Reporting by Eileen Moustakis and Ed McAllister; editing by Jim Marshall)