Williams Partners’ Transco Pipeline Seeks FERC Approval for Gateway Project to Serve Growing Northeastern Market

TULSA, Okla.–(BUSINESS WIRE)–Williams Partners L.P. (NYSE: WPZ) announced today that Transcontinental
Gas Pipe Line Company, LLC (Transco) has filed an application with the
Federal Energy Regulatory Commission (FERC) seeking authorization for
its Gateway Expansion Project, designed to create 65,000 dekatherms per
day of firm transportation capacity for northeastern markets in time for
the 2020/2021 winter heating season.

Transco has executed precedent agreements with PSEG Power, LLC (PSEG)
and UGI Energy Services, LLC for firm transportation service under the
project. Once complete, the project will help meet the growing demand
for natural gas by northeastern consumers in New Jersey and New York.

PSEG supplies its affiliate Public Service Electric & Gas Company, which
is New Jersey's largest provider of electric and gas service – serving
2.2 million electric customers and 1.8 million gas customers. UGI Energy
Services supplies and markets natural gas and electricity to 40,000
customers across the Mid-Atlantic and Northeastern U.S.

“An abundant, reliable supply of natural gas provides northeastern
consumers with affordable, clean energy critical to helping reduce
carbon emissions and growing the region’s economy,” said Frank Ferazzi,
senior vice president of Williams Partners’ Atlantic-Gulf operating
area. “The Gateway Expansion Project will help fuel the region’s growth,
leveraging existing pipeline infrastructure to meet our customers’
rising natural gas demand with minimal environmental impacts.”

“This project is just the latest example of the continued demand along
the Transco system, driving ongoing expansion opportunities and
increasing the volumes that we move on our system,” said Micheal Dunn,
chief operating officer of Williams Partners’ general partner. “Growth
opportunities continue to emerge along Transco, because of its
irreplaceable position to deliver the low cost reliable natural gas our
customers demand.”

Subject to regulatory approval, the Gateway Expansion Project will
consist of adding electric horsepower at an existing Transco compressor
station in New Jersey, in addition to making modifications to two
existing Transco meter stations. Virtually all of the project activities
are proposed within Transco’s existing rights of way and/or property
boundaries.

The certificate application reflects an expected capital cost of $84.6
million and a target in-service date of Nov. 1, 2020.

Transco delivers natural gas to customers through its 10,200-mile
pipeline network, with a mainline extending nearly 1,800 miles between
South Texas and New York City. The system is a major provider of
cost-effective natural gas services that reach U.S. markets in 12
Southeast and Atlantic Seaboard states, including major metropolitan
areas in New York, New Jersey and Pennsylvania.

About Williams Partners

Williams Partners is an industry-leading, large-cap natural gas
infrastructure master limited partnership with a strong growth outlook
and major positions in key U.S. supply basins. Williams Partners has
operations across the natural gas value chain including gathering,
processing and interstate transportation of natural gas and natural gas
liquids. Williams Partners owns and operates more than 33,000 miles of
pipelines system wide – including the nation’s largest volume and
fastest growing pipeline – providing natural gas for clean-power
generation, heating and industrial use. Williams Partners’ operations
touch approximately 30 percent of U.S. natural gas. Tulsa, Okla.-based
Williams (NYSE: WMB), a premier provider of large-scale U.S. natural gas
infrastructure, owns approximately 74 percent of Williams Partners.

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. Additional
information about issues that could lead to material changes in
performance is contained in the partnership’s annual and quarterly
reports filed with the Securities and Exchange Commission.

Contacts

Williams Partners L.P.
Media Contact:
Christopher
Stockton, 713-215-2010
or
Investor Contact:
Brett
Krieg, 918-573-4614