• Strategic partnership between Williams and CPPIB supports ongoing
  growth and Northeast region optimization
• Williams receives approximately $1.33 billion in exchange for a 35%
  interest in a combined Utica East Ohio Midstream-Ohio Valley Midstream
  joint venture

TULSA, Okla.–(BUSINESS WIRE)–Williams (NYSE: WMB) today announced the completion of the formation of
a US$3.8 billion joint venture with Canada
Pension Plan Investment Board (“CPPIB”) that includes Williams’
owned and operated Ohio Valley Midstream system (“OVM”) in the western
Marcellus and Williams’ owned and operated Utica East Ohio Midstream
system (“UEO”) in the Utica Shale play in eastern Ohio.

The finalization of this joint venture agreement in the Northeast,
announced in March 2019, includes the completion of CPPIB’s investment
of approximately $1.33 billion (subject to certain agreed-to,
post-closing adjustments) for a 35% ownership stake in this long-term
partnership. Williams retains 65% ownership, operates the combined
business, and will consolidate the financial results of the joint
venture in Williams’ financial statements.

The cash proceeds to Williams from the purchase by CPPIB of its stake in
the joint venture are being used to offset the purchase price of
Williams’ previously announced and completed acquisition of the
remaining 38% ownership interest in UEO from Momentum Midstream, with
the balance of proceeds used for debt reduction and to fund Williams’
extensive portfolio of attractive growth capital.

Williams expects synergies through common ownership by combining UEO and
OVM to create a more efficient platform for capital spending in the
region, resulting in reduced operating and maintenance expenses and
creating enhanced capabilities and benefits for producers in the area.

“Closing this transaction is another significant milestone in enhancing
our position in the Northeast and accelerating ongoing strengthening of
our balance sheet,” said Alan Armstrong, president and chief executive
officer of Williams. “We now turn our focus to hitting the ground
running with our new partner CPPIB, and look forward to growing our
partnership and together, realizing the shared benefits of the combining
of assets in the basin.”

The joint venture excludes Williams’ ownership interests in Flint
Gathering, Cardinal Gathering, Marcellus South Gathering, Laurel
Mountain Midstream and Blue Racer Midstream.

Morgan Stanley and CIBC Capital Markets acted as financial advisers to
Williams for the transaction. Gibson Dunn served as legal counsel to
Williams.

About Williams

Williams (NYSE: WMB) is a premier provider of large-scale infrastructure
connecting U.S. natural gas and natural gas products to growing demand
for cleaner fuel and feedstocks. Headquartered in Tulsa, Oklahoma,
Williams is an industry-leading, investment grade C-Corp with operations
across the natural gas value chain including gathering, processing,
interstate transportation and storage of natural gas and natural gas
liquids. With major positions in top U.S. supply basins, Williams owns
and operates more than 30,000 miles of pipelines system wide – including
Transco, the nation’s largest volume and fastest growing pipeline –
providing natural gas for clean-power generation, heating and industrial
use. Williams’ operations handle approximately 30% of U.S. natural gas. www.williams.com

Portions of this document may constitute “forward-looking statements”
as defined by federal law. Although the company 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 company’s annual and quarterly reports
filed with the Securities and Exchange Commission.

Contacts

MEDIA CONTACT:
Keith Isbell
(918) 573-7308

INVESTOR CONTACTS:
John Porter
(918) 573-0797

Grace Scott
(918) 573-1092