A record-breaking 13.7 million dekatherms of natural gas was delivered Jan. 8 on the Transco interstate gas pipeline, which stretches from Texas to New York, Williams Partners LP said Jan. 13. Transco is a Williams subsidiary.

Cold weather drove the demand in Transco’s market area, which includes the Eastern Seaboard. The previous record of 13.5 million dekatherms—on Jan. 7, 2015—was surpassed.

The Transco system also established a new three-day market area delivery record Jan. 7-9, averaging 13.6 million dekatherms, up from the previous 12.9 million dekatherms.

Completed expansions to the Transco system in 2015 and 2016 contributed to the new volume records in early January, the company said. Virginia Southside, Northeast Connector, Mobile Bay South III, Leidy Southeast and Rock Springs were placed in service during the last 22 months.

Construction is already underway on the Garden State, Gulf Trace, Dalton, Hillabee (Phase 1) and Virginia Southside II expansion projects that will add even more capacity during 2017, the company said.