Williams Partners’ Transco Pipeline Delivers Record Volume of Natural Gas During Recent Bitter Cold on East Coast

  Williams Partners’ Transco Pipeline Delivers Record Volume of Natural Gas
  During Recent Bitter Cold on East Coast

Business Wire

TULSA, Okla. -- January 31, 2013

Williams Partners L.P. (NYSE: WPZ) delivered a record amount of natural gas on
its Transco interstate gas pipeline to meet demand driven by last week’s
bitter cold weather in markets on the U.S. Eastern Seaboard.

The Transco pipeline delivered a record-breaking 10.4 million dekatherms on
Jan. 22. The new peak-day mark surpasses the previous high of 9.7 million
dekatherms set early last year.

Transco also set a three-day delivery record Jan. 22-24, averaging 9.9 million
dekatherms per day.

The Jan. 22 record volume represents enough gas to heat more than 45 million
U.S. homes. The 10.4 dekatherms is approximately 106 percent of firm contract
demand on the Transco pipeline. Transco’s storage services were instrumental
in meeting demand and maintaining prescribed operating pressure.

Rory Miller, senior vice president of Williams Partners’ Atlantic - Gulf
operating area, said preparation, experience, reliable operations and recent
expansions were all keys in setting a peak-day delivery record on Transco.

“The recent cold wave in the Northeast is another reminder of the importance
of adequate infrastructure in meeting our country’s energy demand,” Miller
said. “With growing demand for natural gas to serve winter heating loads and
cleaner burning power generation, it is vital that we continue to develop
pipeline and other infrastructure to reliably meet these needs.”

In order to help deliver vital energy infrastructure, Williams Partners has
plans to expand Transco’s daily capacity by nearly 2 million dekatherms by
2015. This amount of new capacity is roughly equal the amount of new daily
capacity that Transco has placed into service over the past five years.

The Transco pipeline is a 10,000-mile pipeline system that extends from south
Texas to New York. The system serves major markets along the U.S. Eastern

About Williams Partners L.P. (NYSE: WPZ)

Williams Partners L.P. is a leading diversified master limited partnership
focused on natural gas transportation; gathering, treating, and processing;
storage; natural gas liquid (NGL) fractionation; and oil transportation. The
partnership owns interests in three major interstate natural gas pipelines
that, combined, deliver 14 percent of the natural gas consumed in the United
States. The partnership’s gathering and processing assets include large-scale
operations in the U.S. Rocky Mountains and both onshore and offshore along the
Gulf of Mexico. Williams (NYSE: WMB) owns approximately 70 percent of Williams
Partners, including the general-partner interest. More information is
available at www.williamslp.com, where the partnership routinely posts
important information.

Portions of this document may constitute “forward-looking statements” as
defined by federal law. Although the partnership believes any such statements
are based on reasonable assumptions, there is no assurance that actual
outcomes will not be materially different. Any such statements are made in
reliance on the “safe harbor” protections provided under the Private
Securities Reform Act of 1995. Additional information about issues that could
lead to material changes in performance is contained in the partnership’s
annual reports filed with the Securities and Exchange Commission.


Williams Partners L.P.
Media Contact:
Jeff Pounds, 918-573-3332
Investor Contacts:
John Porter, 918-573-0797
Sharna Reingold, 918-573-2078
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