CenterPoint Energy, OGE Energy Corp. and ArcLight Capital close on midstream partnership

 CenterPoint Energy, OGE Energy Corp. and ArcLight Capital close on midstream
                                 partnership

- Partnership can begin to benefit from enhanced scale, and operational and
geographic diversification

- Partnership names initial board members

PR Newswire

HOUSTON, OKLAHOMA CITY and BOSTON, May 1, 2013

HOUSTON, OKLAHOMA CITY and BOSTON, May 1, 2013 /PRNewswire/ --CenterPoint
Energy, Inc. (NYSE: CNP), OGE Energy Corp. (NYSE: OGE) and ArcLight Capital
Partners, LLC (ArcLight) announced today that they have closed on the
formation of the previously announced partnership that includes CenterPoint
Energy's interstate pipelines and field services businesses and the midstream
business of Enogex LLC. The partnership will be managed by a general partner
whose governance will be shared by CenterPoint Energy and OGE on a 50/50
basis.

(Logo:http://photos.prnewswire.com/prnh/20020930/CNPLOGO)

"We are pleased that timely HSR approval has allowed us to promptly close this
transaction. We are working hard to begin to realize the benefits of the
partnership's enhanced scale, broad geographic reach and expanded
capabilities," said David M. McClanahan, president and chief executive officer
of CenterPoint Energy. "This new company will be a significant participant in
the rapidly growing midstream market."

"Our plans for an initial public offering in the form of a public master
limited partnership are on track," said Pete Delaney, chairman, president and
chief executive officer of OGE Energy. "Integration planning led by executives
from CenterPoint Energy and Enogex will continue as we begin today to
implement the partnership to capture identified opportunities."

The new partnership has combined assets of nearly $11 billion. It owns and
operates 8,400 miles of interstate pipelines with nearly 9 billion cubic feet
per day of transport capacity and nearly 2,300 miles of intrastate pipelines.
It also has more than 11,000 miles of gathering lines, which in 2012 moved
nearly 4 billion cubic feet of natural gas per day. Additionally, it has more
than 90 billion cubic feet of natural gas storage capacity and 11 major
processing plants with nearly2 billion cubic feet per day of inlet capacity.

CenterPoint Energy, OGE Energy and ArcLight hold approximately 58.3 percent,
28.5 percent and 13.2 percent limited partner interests in the partnership,
respectively. CenterPoint Energy and OGE Energy also will own 40 percent and
60 percent interests, respectively, in any incentive distribution rights held
by the general partner.

In connection with the formation of the partnership, CenterPoint Energy has
designated McClanahan and Gary L. Whitlock, executive vice president and chief
financial officer of CenterPoint Energy, and OGE has designated Delaney and
Sean Trauschke, vice president and chief financial officer of OGE, as their
initial representatives on the board of directors of the general partner of
the partnership.

While the partnership's leadership team is being assembled, CenterPoint
Energy's C. Gregory Harper, senior vice president and group president,
Midstream Operations, and Enogex's Keith Mitchell, president, will continue to
be responsible for each company's respective midstream operations and will
work closely together to capture partnership opportunities.

In connection with the closing, the partnership (i) entered into a $1.05
billion three-year senior unsecured term loan facility, (ii) repaid $1.05
billion of intercompany indebtedness owed to CenterPoint Energy's wholly owned
subsidiary, CenterPoint Energy Resources Corp., and (iii) entered into a $1.4
billion senior unsecured revolving credit facility.

CenterPoint Energy, Inc., headquartered in Houston, Texas, is a domestic
energy delivery company that includes electric transmission & distribution,
natural gas distribution and competitive natural gas sales and services
operations. The company serves more than 5 million metered customers primarily
in Arkansas, Louisiana, Minnesota, Mississippi, Oklahoma, and Texas. The
company also owns a 58.3 percent limited partner interest in a midstream
partnership it jointly controls with OGE Energy Corp. with operations in major
natural gas and liquids-rich producing areas of Oklahoma, Texas, Arkansas and
Louisiana. With more than 8,700 employees, CenterPoint Energy and its
predecessor companies have been in business for more than 135 years. For more
information, visit the website at www.CenterPointEnergy.com.

In addition to its 50 percent ownership of the general partnership, OGE Energy
is the parent company of Oklahoma Gas and Electric Company, a regulated
electric utility serving more than 801,000 customers in a service territory
spanning 30,000 square miles in Oklahoma and western Arkansas. The website
address is www.OGE.com.

ArcLight Capital Partners, LLC is an energy-focused private equity investment
firm, having invested over $10 billion since its inception over a decade ago.
Since its establishment in 2001, the firm has raised five funds with
cumulative capital commitments totaling $10.1 billion. ArcLight has
successfully sourced, managed and realized investments through multiple energy
industry cycles. The firm's investment team has extensive energy expertise,
investing experience, industry relationships and specialized asset level value
creation capabilities. ArcLight is headquartered in Boston, MA, with offices
in New York and Luxembourg. More information can be found at
www.arclightcapital.com.

This news release includes forward-looking statements. Actual events and
results may differ materially from those projected. The statements in this
news release regarding the anticipated benefits of the partnership, the
potential public offering of the partnership and other statements that are not
historical facts are forward-looking statements. Each forward looking
statement contained in this release speaks only as of the date of this
release. Factors that could affect actual results include those discussed in
CenterPoint Energy's and its subsidiaries' and OGE Energy Corp.'s. Form 10-Ks
for the fiscal year ended December 31, 2012, and other filings with the SEC.
The execution of any IPO is subject to market conditions and other factors,
and the parties can give no assurance that such an IPO will in fact take
place.

This news release does not constitute an offer to sell or a solicitation of an
offer to buy any securities described herein, nor shall there be any sale of
such securities in any state or jurisdiction in which such an offer,
solicitation or sale would be unlawful prior to registration or qualification
under the securities laws of any such jurisdiction. Any such offering may be
made only by means of a prospectus.

For more information      For more information    For more information contact
contact                   contact
Media:                    Media:                  Media:
Leticia Lowe              Brian Alford            info@arclightcapital.com
Phone 713.207.7702   Phone 405.553.3187 Phone 617.531.6300
Investors:                Investors:              Investors:
Carla Kneipp              Todd Tidwell            Heidi Milne
Phone 713.207.6500   Phone 405.553.3966 Phone 617.531.6300

SOURCE CenterPoint Energy, Inc.

Website: http://www.centerpointenergy.com
 
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