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Williams (WMB) announced today that it delivered a record amount of natural gas on its Transco interstate gas pipeline to meet demand driven by recent cold weather in markets on the U.S. Eastern Seaboard. Two recently completed expansions of Transco, totaling 315,000 dekatherms per day (dth/d) of natural gas transportation capacity, contributed to the volume record in early January.

The nation’s largest-volume natural gas transmission system, Transco delivered a record-breaking 12.6 million dekatherms (MMdt) on Jan. 7 for its Zones 4-6 market area stretching from Mississippi to New York City. The new peak-day mark surpasses the previous high of 11.9 MMdt set on Jan. 7, 2014. Transco also set a three-day market area delivery record Jan. 7-9, averaging 11.9 MMdt. The Jan. 7, 2015 record volume represents enough gas to heat about 50 million U.S. homes.

In addition this year, total peak-day deliveries across the entire Transco system stretching from South Texas to New York City totaled 13.4 MMdt on Jan. 7. Williams expects deliveries to increase substantially in the coming years as additional planned Transco projects go into service.

“We fully expected to hit another record this year because natural gas demand for home heating and power generation continues to grow in new markets,” said Frank Ferazzi, vice president & general manager of Williams’ Transco pipeline. “In anticipation of this steady demand growth, we are continually expanding our Transco system to serve the fastest growing markets in the country in the Northeast and along the Eastern Seaboard.”

On Dec. 1, 2014, portions of two Transco expansions were placed into service, contributing to this year’s record. The projects included modifications to Transco’s mainline as part of the Virginia Southside Expansion (250,000 dth/d) and a portion of the Northeast Connector (65,000 dth/d).

Since 2003, the company has placed into service 22 Transco growth projects, which have increased the system capacity by 3.5 Bcf/d or about 53 percent. To meet future demand for firm natural gas transportation capacity, Williams has previously announced approximately $4.4 billion of Transco growth projects that are expected to be placed into service between 2015 and 2017. The expansions, which consist of 12 projects in seven eastern states, are designed to serve customers’ demand for power generation, industries and local distribution.

The Transco pipeline is a 10,200-mile pipeline system that transports natural gas to markets throughout the northeastern and southeastern United States. Transco is a wholly owned subsidiary of Williams Partners L.P. (WPZ), of which Williams owns controlling interests and is the general partner.

About Williams

Headquartered in Tulsa, Okla., Williams is one of the leading energy infrastructure companies in North America. It owns controlling interests in both Williams Partners L.P. and Access Midstream Partners, L.P. through its 100-percent ownership of the general partner of each partnership. Additionally, Williams owns approximately 66 percent and 50 percent of the limited partner units of Williams Partners L.P. and Access Midstream Partners, L.P., respectively.

Williams Partners owns and operates both on-shore and offshore assets of approximately 15,000 miles of natural gas gathering and transmission pipelines, 1,800 miles of NGL transportation pipelines, an additional 11,000 miles of oil and gas gathering pipelines and numerous other energy infrastructure assets. Williams Partners’ operated facilities have daily gas gathering capacity of approximately 11 billion cubic feet, processing capacity of approximately 7 billion cubic feet, NGL production of more than 400,000 barrels per day and domestic olefins production capacity of 1.95 billion pounds of ethylene and 90 million pounds of propylene per year.

Access Midstream Partners owns and operates natural gas midstream assets across nine states, with an average net throughput of approximately 4.13 billion cubic feet per day and more than 6,773 miles of natural gas gathering pipelines. ACMP’s operations are focused on the Barnett, Eagle Ford, Haynesville, Marcellus, Niobrara and Utica Shales and the Mid-Continent region of the U.S.

For more information about Williams, Williams Partners and Access Midstream Partners, visit the Investor Center at