EX-4.2





 Exhibit 4.2 

CENTERPOINT ENERGY RESOURCES CORP. 

(formerly known as NorAm Energy Corp.) 

To 
 THE BANK OF NEW YORK MELLON
TRUST COMPANY, N.A. 
 (successor to JPMorgan Chase Bank, National Association (formerly Chase Bank of Texas, National Association)) 

Trustee 
  

 
 SUPPLEMENTAL
INDENTURE NO. 19 
 Dated as of March 2, 2021 
  

 
 $1,000,000,000
Floating Rate Senior Notes due 2023 












 CENTERPOINT ENERGY RESOURCES CORP. 

SUPPLEMENTAL INDENTURE NO. 19 

Floating Rate Senior Notes due 2023 

SUPPLEMENTAL INDENTURE No. 19, dated as of March 2, 2021, between CENTERPOINT ENERGY RESOURCES CORP., a Delaware corporation
formerly known as NorAm Energy Corp. (the “Company”), and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. (successor to JPMorgan Chase Bank, National Association (formerly Chase Bank of Texas, National Association)), as Trustee (the
“Trustee”). 
 RECITALS 

The Company has heretofore executed and delivered to the Trustee an Indenture, dated as of February 1, 1998 (the “Original
Indenture” and, as previously and hereby supplemented and amended, the “Indenture”), providing for the issuance from time to time of one or more series of the Company’s Securities. 

The Company has changed its name from “NorAm Energy Corp.” to “CenterPoint Energy Resources Corp.” and all references in
the Indenture to the “Company” or “NorAm Energy Corp.” shall be deemed to refer to CenterPoint Energy Resources Corp. 

Pursuant to the terms of the Indenture, the Company desires to provide for the establishment of a new series of Securities to be designated as
the “Floating Rate Senior Notes due 2023” (the “Notes”), the form and substance of such Notes and the terms, provisions and conditions thereof to be set forth as provided in the Original Indenture and this Supplemental
Indenture No. 19. 
 Section 301 of the Original Indenture provides that various matters with respect to any series of Securities
issued under the Indenture may be established in an indenture supplemental to the Indenture. 
 Subparagraph (7) of Section 901 of
the Original Indenture provides that the Company and the Trustee may enter into an indenture supplemental to the Indenture to establish the form or terms of Securities of any series as permitted by Sections 201 and 301 of the Original Indenture.

 For and in consideration of the premises and the issuance of the series of Securities provided for herein, it is mutually covenanted and
agreed, for the equal and proportionate benefit of the Holders of the Securities of such series, as follows: 

  
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 ARTICLE ONE 

Relation to Indenture; Additional Definitions 

Section 101 Relation to Indenture. This Supplemental Indenture No. 19 constitutes an integral part of the Original
Indenture. 
 Section 102 Additional Definitions. For all purposes of this Supplemental Indenture No. 19: 

Capitalized terms used but not defined in this Supplement Indenture No. 19 have the meaning given such terms in the
Original Indenture. Capitalized terms defined in both this Supplemental Indenture No. 19 and in the Original Indenture have the meaning given such terms in this Supplemental Indenture No. 19. 

“Benchmark” means, initially, the Three-Month LIBOR Rate; provided that if a Benchmark Transition Event and
its related Benchmark Replacement Date have occurred with respect to the Three-Month LIBOR Rate or the then-current Benchmark, then “Benchmark” means the applicable Benchmark Replacement. 

“Benchmark Replacement” means the Interpolated Benchmark with respect to the then-current Benchmark, plus the
Benchmark Replacement Adjustment for such Benchmark; provided that if the Company (or the Designee) cannot determine the Interpolated Benchmark as of the Benchmark Replacement Date, then “Benchmark Replacement” means the first alternative
set forth in the order below that can be determined by the Company (or the Designee) as of the Benchmark Replacement Date: 

(1) the sum of: (a) Term SOFR and (b) the Benchmark Replacement Adjustment; 

(2) the sum of: (a) Compounded SOFR and (b) the Benchmark Replacement Adjustment; 

(3) the sum of: (a) the alternate rate of interest that has been selected or recommended by the Relevant Governmental Body
as the replacement for the then-current Benchmark for the applicable Corresponding Tenor and (b) the Benchmark Replacement Adjustment; 

(4) the sum of: (a) the ISDA Fallback Rate and (b) the Benchmark Replacement Adjustment; and 

(5) the sum of: (a) the alternate rate of interest that has been selected by the Company (or the Designee) as the
replacement for the then-current Benchmark for the applicable Corresponding Tenor giving due consideration to any industry-accepted rate of interest as a replacement for the then-current Benchmark for U.S. dollar denominated floating rate notes at
such time and (b) the Benchmark Replacement Adjustment. 

  
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 “Benchmark Replacement Adjustment” means the first
alternative set forth in the order below that can be determined by the Company (or the Designee) as of the Benchmark Replacement Date: 

(1) the spread adjustment, or method for calculating or determining such spread adjustment (which may be a positive or negative
value or zero), that has been selected or recommended by the Relevant Governmental Body for the applicable Unadjusted Benchmark Replacement; 

(2) if the applicable Unadjusted Benchmark Replacement is equivalent to the ISDA Fallback Rate, then the ISDA Fallback
Adjustment; and 
 (3) the spread adjustment (which may be a positive or negative value or zero) that has been selected by
the Company (or the Designee) giving due consideration to any industry-accepted spread adjustment, or method for calculating or determining such spread adjustment, for the replacement of the then-current Benchmark with the applicable Unadjusted
Benchmark Replacement for U.S. dollar denominated floating rate notes at such time. 
 The Benchmark Replacement Adjustment shall not include the Margin and
such Margin shall be applied to the Benchmark Replacement to determine the interest payable on the Notes. 

“Benchmark Replacement Conforming Changes” means, with respect to any Benchmark Replacement, any technical,
administrative or operational changes (including changes to the definition of “interest period,” timing and frequency of determining rates and making payments of interest, rounding of amounts or tenor, and other administrative matters)
that the Company (or the Designee) decides may be appropriate to reflect the adoption of such Benchmark Replacement in a manner substantially consistent with market practice (or, if the Company (or the Designee) decides that adoption of any portion
of such market practice is not administratively feasible or if the Company (or the Designee) determine that no market practice for use of the Benchmark Replacement exists, in such other manner as the Company (or the Designee) determines is
reasonably necessary). 
 “Benchmark Replacement Date” means the earliest to occur of the following events
with respect to the then current Benchmark: 
 (1) in the case of clause (1) or (2) of the definition of “Benchmark
Transition Event,” the later of (a) the date of the public statement or publication of information referenced therein and (b) the date on which the administrator of the Benchmark permanently or indefinitely ceases to provide the
Benchmark; or 
 (2) in the case of clause (3) of the definition of “Benchmark Transition Event,” the date of
the public statement or publication of information referenced therein. 

  
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 For the avoidance of doubt, if the event giving rise to the Benchmark Replacement Date occurs on the same
day as, but earlier than, the Reference Time in respect of any determination, the Benchmark Replacement Date will be deemed to have occurred prior to the Reference Time for such determination. 

“Benchmark Transition Event” means the occurrence of one or more of the following events with respect to the
then-current Benchmark: 
 (1) a public statement or publication of information by or on behalf of the administrator of the
Benchmark announcing that such administrator has ceased or will cease to provide the Benchmark, permanently or indefinitely, provided that, at the time of such statement or publication, there is no successor administrator that will continue to
provide the Benchmark; 
 (2) a public statement or publication of information by the regulatory supervisor for the
administrator of the Benchmark, the central bank for the currency of the Benchmark, an insolvency official with jurisdiction over the administrator for the Benchmark, a resolution authority with jurisdiction over the administrator for the Benchmark
or a court or an entity with similar insolvency or resolution authority over the administrator for the Benchmark, which states that the administrator of the Benchmark has ceased or will cease to provide the Benchmark permanently or indefinitely,
provided that, at the time of such statement or publication, there is no successor administrator that will continue to provide the Benchmark; or 

(3) a public statement or publication of information by the regulatory supervisor for the administrator of the Benchmark
announcing that the Benchmark is no longer representative. 
 “Business Day” means, with respect to any
Note, any day other than a Saturday, a Sunday or a day on which banking institutions or trust companies in The City of New York are generally authorized or required by law or executive order to remain closed. If any Interest Payment Date,
Stated Maturity or Redemption Date of a Note falls on a day that is not a Business Day, the required payment will be made on the next succeeding Business Day with the same force and effect as if made on the relevant date that the payment was due and
no interest will accrue on such payment for the period from and after the Interest Payment Date, Stated Maturity or Redemption Date, as the case may be, to the date of that payment on the next succeeding Business Day.

“Calculation Agent” means a banking institution or trust company appointed by the Company to act as
calculation agent, initially The Bank of New York Mellon Trust Company, N.A. 
 “Compounded SOFR” means the
compounded average of SOFRs for the applicable Corresponding Tenor, with the rate, or methodology for this rate, and conventions for this rate being established by the Company (or the Designee) in accordance with: 

  
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 (1) the rate, or methodology for this rate, and conventions for this rate
selected or recommended by the Relevant Governmental Body for determining Compounded SOFR; provided that: 
 (2) if, and to
the extent that, the Company (or the Designee) determine that Compounded SOFR cannot be determined in accordance with clause (1) above, then the rate, or methodology for this rate, and conventions for this rate that have been selected by the
Company (or the Designee) giving due consideration to any industry-accepted market practice for U.S. dollar denominated floating rate notes at such time. 

For the avoidance of doubt, the calculation of Compounded SOFR shall exclude the Benchmark Replacement Adjustment and the Margin. 

“Corresponding Tenor” with respect to a Benchmark Replacement means a tenor (including overnight) having
approximately the same length (disregarding business day adjustment) as the applicable tenor for the then-current Benchmark. 

“Consolidated Net Tangible Assets” means the total amount of assets of the Company, including the assets of
its Subsidiaries, less, without duplication: (a) total current liabilities (excluding indebtedness due within 12 months); (b) all reserves for depreciation and other asset valuation reserves, but excluding reserves for deferred
federal income taxes; (c) all intangible assets such as goodwill, trademarks, trade names, patents and unamortized debt discount and expense carried as an asset; and (d) all appropriate adjustments on account of minority interests of other
Persons holding common stock of any Subsidiary, all as reflected in the Company’s most recent audited consolidated balance sheet preceding the date of such determination. 

“control” (including the terms “controlled by” and “under common control with”) means the
possession, direct or indirect, of the power to direct or cause the direction of the management and policies of a Person, whether through the ownership of voting shares, by contract, or otherwise. 

“Corporate Trust Office” means the principal office of the Trustee at which at any particular time its
corporate trust business shall be administered, which office as of the date hereof is located at: 601 Travis Street, 16th Floor, Houston, Texas 77002, Attention: Global Corporate Trust; telephone: (713)
483-6817; telecopy: (713) 483-7038. 

“Designee” means an independent financial advisor or such other designee of the Company. For the avoidance of
doubt, in no event shall the Calculation Agent or the Trustee be the Designee. 
 “Equity Interests” means
any capital stock, partnership, joint venture, member or limited liability or unlimited liability company interest, beneficial interest in a trust or similar entity or other equity interest or investment of whatever nature. 

  
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 “Federal Reserve Bank of New York’s Website” means the
website of the Federal Reserve Bank of New York at http://www.newyorkfed.org, or any successor source. 
 “Finance
Lease” means a lease that, in accordance with accounting principles generally accepted in the United States of America, would be recorded as a finance lease on the balance sheet of the lessee, but excluding, for the avoidance of doubt, any
operating leases or any other non-finance leases. 
 “indebtedness”
means, as applied to the Company or any Subsidiary, means bonds, debentures, notes and other instruments or arrangements representing obligations created or assumed by the Company or any such Subsidiary, including any and all: (i) obligations
for money borrowed (other than unamortized debt discount or premium); (ii) obligations evidenced by a note or similar instrument given in connection with the acquisition of any business, properties or assets of any kind; (iii) obligations
as lessee under a Finance Lease; and (iv) amendments, renewals, extensions, modifications and refundings of any such indebtedness or obligation listed in clause (i), (ii) or (iii) above. All indebtedness secured by a lien upon
property owned by the Company or any Subsidiary and upon which indebtedness the Company or any such Subsidiary customarily pays interest, although the Company or any such Subsidiary has not assumed or become liable for the payment of such
indebtedness, shall for all purposes hereof be deemed to be indebtedness of the Company or any such Subsidiary. All indebtedness for borrowed money incurred by other Persons which is directly guaranteed as to payment of principal by the Company or
any Subsidiary shall for all purposes hereof be deemed to be indebtedness of the Company or any such Subsidiary, as applicable, but no other contingent obligation of the Company or any such Subsidiary in respect of indebtedness incurred by other
Persons shall for any purpose be deemed to be indebtedness of the Company or any such Subsidiary. 
 “Interest
Payment Date” has the meaning set forth in Section 204(b) hereof. 
 “Interpolated Benchmark”
with respect to the Benchmark means the rate determined for the Corresponding Tenor by interpolating on a linear basis between: (1) the Benchmark for the longest period (for which the Benchmark is available) that is shorter than the
Corresponding Tenor and (2) the Benchmark for the shortest period (for which the Benchmark is available) that is longer than the Corresponding Tenor. 

“ISDA Definitions” means the 2006 ISDA Definitions published by the International Swaps and Derivatives
Association, Inc. or any successor thereto, as amended or supplemented from time to time, or any successor definitional booklet for interest rate derivatives published from time to time. 

“ISDA Fallback Adjustment” means the spread adjustment (which may be a positive or negative value or zero)
that would apply for derivatives transactions referencing the ISDA Definitions to be determined upon the occurrence of an index cessation event with respect to the Benchmark for the applicable tenor. 

  
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 “ISDA Fallback Rate” means the rate that would apply for
derivatives transactions referencing the ISDA Definitions to be effective upon the occurrence of an index cessation date with respect to the Benchmark for the applicable tenor excluding the applicable ISDA Fallback Adjustment. 

“Issue Date” has the meaning set forth in Section 204(a) hereof. 

“LIBOR Business Day” means any day on which dealings in deposits in U.S. Dollars are transacted in the London
Inter-Bank Market. 
 “LIBOR Interest Determination Date” means (i) the second LIBOR Business Day
preceding each LIBOR Rate Reset Date or (ii) March 1, 2021 in the case of the initial interest period. 

“LIBOR Rate Reset Date” has the meaning set forth in Section 204(b) hereof. 

“Lien” means any mortgage, deed of trust, pledge, hypothecation, assignment, deposit arrangement, charge,
security interest, encumbrance or lien of any kind whatsoever (including any Finance Lease). 
 “Margin” has
the meaning set forth in Section 204(a) hereof. 
 “Maturity Date” has the meaning set forth in
Section 203 hereof. 
 “Non-Recourse Debt” means (i) any
indebtedness for borrowed money incurred by any Project Finance Subsidiary to finance the acquisition, improvement, installation, design, engineering, construction, development, completion, maintenance or operation of, or otherwise to pay costs and
expenses relating to or providing financing for, any project, which indebtedness for borrowed money does not provide for recourse against the Company or any Subsidiary of the Company (other than a Project Finance Subsidiary and such recourse as
exists under a Performance Guaranty) or any property or asset of the Company or any Subsidiary of the Company (other than Equity Interests in, or the property or assets of, a Project Finance Subsidiary and such recourse as exists under a Performance
Guaranty) and (ii) any refinancing of such indebtedness for borrowed money that does not increase the outstanding principal amount thereof (other than to pay costs incurred in connection therewith and the capitalization of any interest or fees)
at the time of the refinancing or increase the property subject to any lien securing such indebtedness for borrowed money or otherwise add additional security or support for such indebtedness for borrowed money. 

“Notes” has the meaning set forth in the third paragraph of the Recitals hereof. 

“Original Indenture” has the meaning set forth in the first paragraph of the Recitals hereof. 

“Par Call Date” has the meaning set forth in Section 401 hereof. 

  
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 “Performance Guaranty” means any guaranty issued in
connection with any Non-Recourse Debt that (i) if secured, is secured only by assets of or Equity Interests in a Project Finance Subsidiary, and (ii) guarantees to the provider of such Non-Recourse Debt or any other person (a) performance of the improvement, installation, design, engineering, construction, acquisition, development, completion, maintenance or operation of, or otherwise affects
any such act in respect of, all or any portion of the project that is financed by such Non-Recourse Debt, (b) completion of the minimum agreed equity or other contributions or support to the relevant
Project Finance Subsidiary, or (c) performance by a Project Finance Subsidiary of obligations to persons other than the provider of such Non-Recourse Debt. 

“Project Finance Subsidiary” means any Subsidiary designated by the Company whose principal purpose is to
incur Non-Recourse Debt and/or construct, lease, own or operate the assets financed thereby, or to become a direct or indirect partner, member or other equity participant or owner in a Person created for such
purpose, and substantially all the assets of which Subsidiary or Person are limited to (x) those assets being financed (or to be financed), or the operation of which is being financed (or to be financed), in whole or in part by Non-Recourse Debt, or (y) Equity Interests in, or indebtedness or other obligations of, one or more other such Subsidiaries or Persons, or (z) indebtedness or other obligations of the Company or any
Subsidiary or other Persons. At the time of designation of any Project Finance Subsidiary, the sum of the net book value of the assets of such Subsidiary and the net book value of the assets of all other Project Finance Subsidiaries then existing
shall not in the aggregate exceed 10 percent of the Consolidated Net Tangible Assets. 
 “Reference
Time” with respect to any determination of the Benchmark means (1) if the Benchmark is the Three-Month LIBOR Rate, 11:00 a.m., London time, on the LIBOR Interest Determination Date, and (2) if the Benchmark is not the Three-Month
LIBOR Rate, the time determined by the Company (or the Designee) in accordance with the Benchmark Replacement Conforming Changes. 

“Regular Record Date” has the meaning set forth in Section 204(b) hereof. 

“Relevant Governmental Body” means the Federal Reserve Board and/or the Federal Reserve Bank of New York, or a
committee officially endorsed or convened by the Federal Reserve Board and/or the Federal Reserve Bank of New York or any successor thereto. 

“SOFR” with respect to any day means the secured overnight financing rate published for such day by the
Federal Reserve Bank of New York, as the administrator of the benchmark (or a successor administrator), on the Federal Reserve Bank of New York’s Website. 

“Subsidiary” of any entity means any corporation, partnership, joint venture, limited liability company, trust
or estate of which (or in which) more than 50% of (i) the 

  
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issued and outstanding capital stock having ordinary voting power to elect a majority of the Board of Directors of such corporation (irrespective of whether at the time capital stock of any other
class or classes of such corporation shall or might have voting power upon the occurrence of any contingency), (ii) the interest in the capital or profits of such limited liability company, partnership, joint venture or other entity or
(iii) the beneficial interest in such trust or estate is at the time directly or indirectly owned or controlled by such entity, by such entity and one or more of its other subsidiaries or by one or more of such entity’s other subsidiaries.

 “Term SOFR” means the forward-looking term rate for the applicable Corresponding Tenor based on SOFR that
has been selected or recommended by the Relevant Governmental Body. 
 “Three-Month LIBOR Rate” has the
meaning set forth in Section 205(a) hereof. 
 “Unadjusted Benchmark Replacement” means the Benchmark
Replacement excluding the Benchmark Replacement Adjustment. 
 All references herein to Articles and Sections, unless
otherwise specified, refer to the corresponding Articles and Sections of this Supplemental Indenture No. 19; and 
 The
terms “herein,” “hereof,” “hereunder” and other words of similar import refer to this Supplemental Indenture No. 19. 

ARTICLE TWO 
 The Series of
Securities 
 Section 201 Title of the Securities. The Notes shall be designated as the “Floating Rate Senior
Notes due 2023.” 
 Section 202 Limitation on Aggregate Principal Amount. The Trustee shall authenticate and deliver
the Notes for original issue on the Issue Date in the aggregate principal amount of $1,000,000,000 upon a Company Order for the authentication and delivery thereof and satisfaction of Sections 301 and 303 of the Original Indenture. Such order
shall specify the amount of the Notes to be authenticated, the date on which the original issue of Notes is to be authenticated and the name or names of the initial Holder or Holders. The aggregate principal amount of Notes that may initially
be outstanding shall not exceed $1,000,000,000; provided, however, that the authorized aggregate principal amount of the Notes may be increased above such amount by a Board Resolution to such effect. 

Section 203 Stated Maturity. The Stated Maturity of the Notes shall be March 2, 2023 (the “Maturity
Date”). 
 Section 204 Interest and Interest Rates. 

  
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 (a) The Notes shall bear interest at the Three-Month LIBOR Rate plus 50 basis points (0.50%)
per year (the “Margin”), reset quarterly, from and including March 2, 2021 (the “Issue Date”) to, but excluding, the Maturity Date. The per annum interest rate for the period from the Issue Date to the
first LIBOR Rate Reset Date shall be equal to the Three-Month LIBOR Rate as determined on March 1, 2021 plus the Margin. Starting on the first Interest Payment Date, interest on each Note will accrue from and including the last Interest Payment
Date to which the Company has paid, or duly provided for the payment of, interest on that Note to but excluding the next succeeding Interest Payment Date. No interest will accrue on the Notes for the day which the Notes mature. 

(b) Interest on the Notes shall be payable on March 2, June 2, September 2 and December 2 of each year
(each an “Interest Payment Date” and also a “LIBOR Rate Rest Date”), beginning June 2, 2021 to the persons in whose names the Notes (or one or more Predecessor Securities) are
registered on (1) the Business Day immediately preceding such Interest Payment Date so long as all of the Notes are Global Securities, or (2) the 15th calendar day immediately preceding such Interest Payment Date (whether or not a Business
Day) if any of the Notes are not Global Securities (such date in clause (1) and clause (2), a “Regular Record Date”). 

(c) Any such interest not so punctually paid or duly provided for shall forthwith cease to be payable to the Holder on such Regular Record
Date and shall either (i) be paid to the Person in whose name such Note (or one or more Predecessor Securities) is registered at the close of business on the Special Record Date for the payment of such Defaulted Interest to be fixed by the
Trustee, notice whereof shall be given to Holders of the Notes not less than 10 days prior to such Special Record Date, or (ii) be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange or
automated quotation system on which the Notes may be listed or traded, and upon such notice as may be required by such exchange or automated quotation system, all as more fully provided in the Indenture. 

(d) The Notes will bear interest for each interest period at a rate determined by the Calculation Agent. Promptly upon determination, the
Calculation Agent will inform the Trustee and the Company, or, in certain circumstances, the Company or the Designee will inform the Trustee, of the interest rate for the next interest period. The interest rate in effect on any LIBOR Rate Reset Date
will be the applicable interest rate as reset on that date and the interest rate applicable to any other day will be the interest rate as reset on the immediately preceding LIBOR Rate Reset Date (or, in the case of any day preceding the first LIBOR
Rate Reset Date, the interest rate determined on March 1, 2021). The amount of interest payable for any interest period on the Notes will be determined by the Company and will be computed by multiplying the floating rate for that interest
period by a fraction, the numerator of which will be the actual number of days elapsed during that interest period (determined by including the first day of the interest period and excluding the last day), and the denominator of which will be 360,
and by multiplying the result by the aggregate principal amount of the floating rate notes. The interest rate for any interest period will at no time be higher than the Maximum Interest Rate. Additionally, the interest rate will in no event be lower
than zero. 
 (e) If an Interest Payment Date, other than a Redemption Date or the Maturity Date of the Notes, falls on a day that is not a
Business Day, the Interest Payment Date will be postponed 

  
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to the next day that is a Business Day, except that if that Business Day is in the next succeeding calendar month, the Interest Payment Date will be the immediately preceding Business Day. Also,
if a Redemption Date or the Maturity Date of the Notes falls on a day that is not a Business Day, then payment of the interest or principal payable on that date will be made on the next succeeding day which is a Business Day, and no interest will be
paid or other payment made in respect of such delay. If any LIBOR Rate Reset Date falls on a day that is not a Business Day, the LIBOR Rate Reset Date will be postponed to the next day that is a Business Day, except that if that Business Day is in
the next succeeding calendar month, the LIBOR Rate Reset Date will be the immediately preceding Business Day. 
 Section 205
Calculations of Three-Month LIBOR Rate  
 (a) The “Three-Month LIBOR Rate” for each interest period beginning on a
LIBOR Rate Reset Date, or March 2, 2021 in the case of the initial interest period, means the rate determined in accordance with the following provisions: 

(1) On the related LIBOR Interest Determination Date, the Calculation Agent will determine the Three-Month LIBOR Rate, which will be the rate
for deposits in U.S. Dollars having an index maturity of three months which appears on the Bloomberg L.P. page “BBAM” (or on such other page as may replace the Bloomberg L.P. page “BBAM” on that service), or, if on such interest
determination date, the three-month LIBOR does not appear or is not available on the designated Bloomberg L.P. page “BBAM” (or on such other page as may replace the Bloomberg L.P. page “BBAM” on that service), the Reuters Page
LIBOR01 (or such other page as may replace the Reuters Page LIBOR01 on that service), as of 11:00 a.m., London time, on the LIBOR Interest Determination Date. 

(2) If the Three-Month LIBOR Rate cannot be determined as described above on the LIBOR Interest Determination Date, the Calculation Agent will
request the principal London offices of four major reference banks in the London Inter-Bank Market selected by the Company to provide it with their offered quotations for deposits in U.S. Dollars for the period of three months, beginning on the
applicable LIBOR Rate Reset Date, to prime banks in the London Inter-Bank Market at approximately 11:00 a.m., London time, on that LIBOR Interest Determination Date and in a principal amount of not less than $1,000,000. If at least two quotations
are provided, then the Three-Month LIBOR Rate will be the average (rounded, if necessary, to the nearest one hundredth (0.01) of a percent) of those quotations. If fewer than two quotations are provided, then the Three-Month LIBOR Rate will be the
average (rounded, if necessary, to the nearest one hundredth (0.01) of a percent) of the rates quoted at approximately 11:00 a.m., New York City time, on the LIBOR Interest Determination Date by three major banks in New York City selected by the
Company for loans in U.S. Dollars to leading European banks, having a three-month maturity and in a principal amount of not less than $1,000,000. If the banks selected by the Company are not providing quotations in the manner described by this
paragraph, the rate for the interest period following the LIBOR Interest Determination Date will be the rate already in effect on that LIBOR Interest Determination Date. 

Notwithstanding clause (1) and clause (2) in this Section 205(a), if the Company (or the Designee) determines on or prior to the relevant LIBOR
Interest Determination Date that a Benchmark 

  
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Transition Event and its related Benchmark Replacement Date have occurred with respect to Three-Month LIBOR (or the then-current Benchmark, as applicable), then the amount of interest that will
be payable for each interest period will be an annual rate equal to the sum of the Benchmark Replacement and the Margin as set forth in Section 206. However, if the Company (or the Designee) determine that a Benchmark Transition Event and its
related Benchmark Replacement Date have occurred with respect to the then-current Benchmark, but for any reason the Benchmark Replacement has not been determined as of the relevant LIBOR Interest Determination Date, the interest rate for the
applicable interest period will be equal to the interest rate for the immediately preceding interest period, as determined by the Company (or the Designee). 

(b) All percentages resulting from any calculation of any interest rate for the Notes will be rounded, if necessary, to the nearest one
hundred-thousandth of a percentage point, with five one-millionths of a percentage point rounded upwards (e.g., 3.456789% (or .03456789) being rounded to 3.45679% (or .0345679)) and all dollar amounts used in
or resulting from such calculations will be rounded to the nearest cent (with one-half cent being rounded upwards). Any percentage resulting from any calculation of any interest rate for the Notes less than
0.00% will be deemed to be 0.00% (or .0000). 
 (c) Absent willful misconduct, bad faith or manifest error, the calculation of the
applicable interest rate for each interest period by the Calculation Agent, or in certain circumstances, by the Company or the Designee will be final and binding on us, the Trustee, and the Holders of the Notes. The Holders of the Notes may obtain
the interest rate for the current and preceding interest periods by writing the Trustee at The Bank of New York Mellon Trust Company, N.A., 601 Travis Street, Houston, Texas 77002, Attn: Corporate Trust Admin-CERC. 

Section 206 Effect of Benchmark Transition Event 

(a) If the Company (or the Designee) determine that a Benchmark Transition Event and its related Benchmark Replacement Date have occurred prior
to the Reference Time in respect of any determination of the Benchmark on any date, the Benchmark Replacement will replace the then-current Benchmark for all purposes relating to the Notes in respect of such determination on such date and all
determinations on all subsequent dates. 
 (b) In connection with the implementation of a Benchmark Replacement, the Company (or the
Designee) will have the right to make Benchmark Replacement Conforming Changes from time to time. 
 (c) Any determination, decision or
election that may be made by the Company (or the Designee) pursuant to this Section 206, including any determination with respect to tenor, rate or adjustment or of the occurrence or non-occurrence of an
event, circumstance or date and any decision to take or refrain from taking any action or any selection, will be conclusive and binding absent manifest error, will be made in the Company’s (or the Designee’s) sole discretion, and,
notwithstanding anything to the contrary, shall become effective without consent from the Holders of the Notes or any other party. 

  
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 (d) In no event shall the Calculation Agent be responsible for determining any substitute
for Three-Month LIBOR, or for making any adjustments to any alternative benchmark or spread thereon, the Business Day convention, interest determination dates or any other relevant methodology for calculating any such substitute or successor
benchmark. The Calculation Agent will be entitled to conclusively rely on any determinations made by the Company or the Designee and will have no liability for such actions taken at the Company’s direction. Any determination, decision or
election that may be made by the Company or the Designee in connection with a Benchmark Transition Event or a Benchmark Replacement, including any determination with respect to a rate or adjustment or of the occurrence or non-occurrence of an event, circumstance or date and any decision to take or refrain from taking any action or any selection, will be conclusive and binding absent manifest error, may be made in the Company’s
or the Designee’s sole discretion, and, notwithstanding anything to the contrary, will become effective without consent from any other party. Neither the Trustee nor the Calculation Agent will have any liability for any determination made by or
on behalf of the Company or the Designee in connection with a Benchmark Transition Event or a Benchmark Replacement. 
 Section 207
Paying Agent; Place of Payment. The Trustee shall initially serve as the Paying Agent for the Notes. The Company may appoint and change any Paying Agent or approve a change in the office through which any Paying Agent acts without
notice, other than notice to the Trustee. The Company or any of its Subsidiaries or any of their Affiliates may act as Paying Agent. The Place of Payment where the Notes may be presented or surrendered for payment shall be the Corporate
Trust Office of the Trustee. At the option of the Company, payment of interest may be made (i) by check mailed to the address of the Person entitled thereto as such address shall appear in the Security Register or (ii) by wire
transfer in immediately available funds at such place and to such account as may be designated in writing by the Person entitled thereto as specified in the Security Register. 

Section 208 Place of Registration or Exchange; Notices and Demands With Respect to the Notes. The place where the Holders of
the Notes may present the Notes for registration of transfer or exchange and may make notices and demands to or upon the Company in respect of the Notes shall be the Corporate Trust Office of the Trustee. 

Section 209 Percentage of Principal Amount. The Notes shall be initially issued at 100% of their principal amount, plus
accrued interest, if any, from the Issue Date. 
 Section 210 Global Securities. The Notes shall be issuable in whole or in part
in the form of one or more Global Securities. Such Global Securities shall be deposited with, or on behalf of, The Depository Trust Company, New York, New York, which shall act as Depositary with respect to the Notes. Such Global
Securities shall bear the legends set forth in the form of Security attached as Exhibit A hereto. 
 Section 211 Form of
Securities. The Notes shall be substantially in the form attached as Exhibit A hereto. 
 Section 212 Securities
Registrar. The Trustee shall initially serve as the Security Registrar for the Notes. 

  
 13 













 Section 213 Defeasance and Discharge; Covenant Defeasance. 

(a) Article Fourteen of the Original Indenture, including without limitation Sections 1402 and 1403 thereof (as modified by
Section 211(b) hereof), shall apply to the Notes. 
 (b) Solely with respect to the Notes issued hereby, the first sentence of
Section 1403 of the Original Indenture is hereby deleted in its entirety, and the following is substituted in lieu thereof: 

“Upon the Company’s exercise of its option (if any) to have this Section 1403 applied to any Securities or any series of
Securities, as the case may be, (1) the Company shall be released from its obligations under Article Eight and under any covenants provided pursuant to Section 301(20), 901(2) or 901(7) for the benefit of the Holders of such
Securities, including without limitation, the covenants provided for in Article Three of Supplemental Indenture No. 19 to the Indenture, and (2) the occurrence of any event specified in Sections 501(4) (with respect to
Article Eight and to any such covenants provided pursuant to Section 301(20), 901(2) or 901(7)) and 501(7) shall be deemed not to be or result in an Event of Default, in each case with respect to such Securities as provided in this
Section 1403 on and after the date the conditions set forth in Section 1404 are satisfied (hereinafter called “Covenant Defeasance”).” 

Section 212 Sinking Fund Obligations. The Company shall have no obligation to redeem or purchase any Notes pursuant to any
sinking fund or analogous requirement or upon the happening of a specified event or at the option of a Holder thereof. 
 ARTICLE THREE 

Additional Covenants 

Section 301. Maintenance of Properties. The Company shall cause all properties used or useful in the conduct of its business or
the business of any Subsidiary to be maintained and kept in good condition, repair and working order and supplied with all necessary equipment and shall cause to be made all necessary repairs, renewals, replacements, betterments and improvements
thereof, all as in the judgment of the Company may be necessary so that the business carried on in connection therewith may be properly conducted at all times; provided, however, that nothing in this Section 301 shall prevent the
Company from discontinuing the operation or maintenance of any of such properties if such discontinuance is, in the judgment of the Company, desirable in the conduct of its business or the business of any Subsidiary. 

Section 302. Payment of Taxes and Other Claims. The Company shall pay or discharge or cause to be paid or discharged, before the
same shall become delinquent, (1) all taxes, assessments and governmental charges levied or imposed upon the Company or any Subsidiary or upon the income, profits or property of the Company or any Subsidiary, and (2) all lawful claims for
labor, materials and supplies which, if unpaid, might by law become a lien upon the property of the Company or any Subsidiary; provided, however, that the Company shall not be required to pay or discharge or cause to be paid or
discharged any such tax, assessment, charge or claim whose amount, applicability or validity is being contested in good faith by appropriate proceedings. 

  
 14 













 ARTICLE FOUR 

Optional Redemption of the Notes 

Section 401 Redemption Price. The Notes shall be redeemable, at the option of the Company, at any time and from time to time, in
whole or in part, on or after September 2, 2021 (the “Par Call Date”), at a price equal to 100% of the principal amount of the Notes to be redeemed plus accrued and unpaid interest on the principal amount being redeemed, if
any, to, but excluding, the Redemption Date. The Trustee shall have no responsibility for the calculation of such amount. 

Section 402 [Reserved].  

Section 403 Partial Redemption. If fewer than all of the Notes are to be redeemed by the Company pursuant to this Article
Four, not more than 60 days prior to the Redemption Date, the particular Notes or portions thereof called for redemption will be selected from the outstanding Notes not previously called by such method as the Trustee deems fair and appropriate. The
Trustee may select for redemption Notes and portions of Notes in amounts of $2,000 or whole multiples of $1,000. A new Note in principal amount equal to the unredeemed portion of the original Note shall be issued upon the cancellation of the
original Note. In the case of a partial redemption of Notes registered in the name of Cede & Co., the Notes to be redeemed will be determined in accordance with the procedures of The Depository Trust Company. 

Section 404 Notice of Optional Redemption.

(a) The Trustee, at the written direction of the Company, will send a notice of redemption prepared by the Company to each holder of Notes to
be redeemed by first-class mail (or in accordance with the procedures of The Depository Trust Company with respect to Notes registered in the name of Cede & Co.) at least 15 and not more than 60 days prior to the date fixed for redemption.
Unless the Company defaults on payment of the redemption price, interest will cease to accrue on the Notes or portions thereof called for redemption on the Redemption Date. If any Note is to be redeemed in part only, the notice of redemption shall
state the portion of the principal amount to be redeemed. 
 (b) Notice of any redemption of Notes may, at the Company’s discretion, be
given subject to one or more conditions precedent, including, but not limited to, completion of a corporate transaction that is pending (such as an equity or equity-linked offering, an incurrence of indebtedness or an acquisition or other strategic
transaction involving a change of control in the Company or another Person). If such redemption is so subject to satisfaction of one or more conditions precedent, such notice shall describe each such condition, and such notice may be rescinded in
the event that any or all such conditions shall not have been satisfied or otherwise waived on or prior to the Business Day immediately preceding the relevant redemption date. The Company shall notify holders of Notes of any such rescission as soon
as practicable after it determines that such conditions precedent will not be able to be satisfied or the Company is not able or willing to waive such conditions precedent. 

  
 15 













 ARTICLE FIVE 

Remedies 
 Section 501
Additional Event of Default; Acceleration of Maturity. 
 (a) Solely with respect to the Notes issued hereby, Section 501(7) of
the Original Indenture is hereby deleted in its entirety, and the following is substituted in lieu thereof as an Event of Default in addition to the other events set forth in Section 501 of the Original Indenture: 

“(7) the default by the Company or any Subsidiary, other than a Project Finance Subsidiary, in the payment, when due,
after the expiration of any applicable grace period, of principal of indebtedness for money borrowed, other than Non-Recourse Debt, in the aggregate principal amount then outstanding of $125 million or
more, or acceleration of any indebtedness for money borrowed in such aggregate principal amount so that it becomes due and payable prior to the date on which it would otherwise have become due and payable and such acceleration is not rescinded or
such default is not cured within 30 days after there has been given, by registered or certified mail, to the Company by the Trustee or to the Company and the Trustee by the holders of at least 33% in principal amount of the Notes written notice
specifying such default and requiring the Company to cause such acceleration to be rescinded or such default to be cured and stating that such notice is a “Notice of Default” under the Indenture;”. 

(b) Solely with respect to the Notes issued hereby, the first paragraph of Section 502 of the Original Indenture is hereby deleted in its
entirety, and the following is substituted in lieu thereof: 
 “If an Event of Default (other than an Event of Default
specified in Section 501(5) or 501(6)) with respect to the Notes at the time Outstanding occurs and is continuing, then in every such case the Trustee or the Holders of not less than 33% in principal amount of the Notes Outstanding may declare
the principal amount of all the Notes to be due and payable immediately, by a notice in writing to the Company (and to the Trustee if given by Holders), and upon any such declaration such principal amount (or specified amount) shall become
immediately due and payable. If an Event of Default specified in Section 501(5) or 501(6) with respect to the Notes at the time Outstanding occurs and is continuing, the principal amount of all the Notes shall automatically, and without any
declaration or other action on the part of the Trustee or any Holder, become immediately due and payable.” 

  
 16 













 Section 502 Amendment of Certain Provisions. Solely with respect to the
Notes issued hereby, references to “25%” in Article Five of the Indenture are hereby deleted in their entirety and “33%” is substituted in lieu thereof. 

ARTICLE SIX 
 Miscellaneous
Provisions 
 Section 601 The Indenture, as supplemented and amended by this Supplemental Indenture No. 19, is in all respects
hereby adopted, ratified and confirmed. 
 Section 602 This Supplemental Indenture No. 19 may be executed in any number of
counterparts, each of which shall be an original, but such counterparts shall together constitute but one and the same instrument. The words “execution,” “executed,” “signed,” signature,” and words of like import
in this Supplemental Indenture No. 19 shall include images of manually executed signatures transmitted by facsimile, email or other electronic format (including, without limitation, “pdf,” “tif” or “jpg”) and other
electronic signatures (including, without limitation, DocuSign and AdobeSign). The use of electronic signatures and electronic records (including, without limitation, any contract or other record created, generated, sent, communicated, received, or
stored by electronic means) shall be of the same legal effect, validity and enforceability as a manually executed signature or use of a paper-based record-keeping system to the fullest extent permitted by applicable law, including the Federal
Electronic Signatures in Global and National Commerce Act, the New York State Electronic Signatures and Records Act and any other applicable law, including, without limitation, any state law based on the Uniform Electronic Transactions Act or the
Uniform Commercial Code. Without limitation to the foregoing, and anything in this Supplemental Indenture No. 19 to the contrary notwithstanding, (a) any Officers’ Certificate, Company Order, Opinion of Counsel, Security, certificate
of authentication appearing on or attached to any Security or other certificate, Opinion of Counsel, instrument, agreement or other document delivered pursuant to this Supplemental Indenture No. 19 may be executed, attested and transmitted by
any of the foregoing electronic means and formats, (b) all references in Section 303 or elsewhere in the Indenture to the execution, attestation or authentication of any Security or any certificate of authentication appearing on or
attached to any Security by means of a manual or facsimile signature shall be deemed to include signatures that are made or transmitted by any of the foregoing electronic means or formats, and (c) any requirement in Section 303 or
elsewhere in the Indenture that any signature be made under a corporate seal (or facsimile thereof) shall not be applicable to the Securities of such series. 

Section 603 THIS SUPPLEMENTAL INDENTURE NO. 19 AND EACH NOTE SHALL BE DEEMED TO BE A CONTRACT MADE UNDER THE LAWS OF THE STATE OF NEW
YORK AND SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. 

  
 17 













 Section 604 If any provision in this Supplemental Indenture No. 19 limits,
qualifies or conflicts with another provision hereof which is required to be included herein by any provisions of the Trust Indenture Act, such required provision shall control. 

Section 605 In case any provision in this Supplemental Indenture No. 19 or the Notes shall be invalid, illegal or unenforceable, the
validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby. 

  
 18 













 IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture No. 19
to be duly executed, as of the day and year first written above. 
  

			
	CENTERPOINT ENERGY RESOURCES CORP.
		
	By:	 	  

		 	Jason P. Wells
		 	Executive Vice President and Chief Financial Officer


  

	
	Attest:
	
	  

	Vincent A. Mercaldi
	Corporate Secretary

 (SEAL) 
  

			
	THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.,
	As Trustee
		
	By:	 	  

		 	Authorized Signatory



  
 19 













 Exhibit A 

[FORM OF FACE OF SECURITY] 
 [IF THIS SECURITY IS
TO BE A GLOBAL SECURITY -] THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR A NOMINEE OF A DEPOSITARY. THIS SECURITY IS EXCHANGEABLE FOR SECURITIES
REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE AND MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF
THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY. 
 [FOR AS LONG AS THIS GLOBAL SECURITY IS DEPOSITED WITH OR ON BEHALF OF THE
DEPOSITORY TRUST COMPANY IT SHALL BEAR THE FOLLOWING LEGEND.] UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO CENTERPOINT ENERGY RESOURCES CORP.
OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO
CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF,
CEDE & CO., HAS AN INTEREST HEREIN. 
 CENTERPOINT ENERGY RESOURCES CORP. 

Floating Rate Senior Notes due 2023 
  

			
	 Original Interest Accrual Date: March 2, 2021

Stated Maturity: March 2, 2023
 Interest Rate: Three-Month
LIBOR Rate plus 0.50% (the “Margin”), reset quarterly
 Interest Payment Dates: March 2, June 2, September 2 and
December 2
 Initial Interest Payment Date: June 2, 2021

Regular Record Dates: [Business Day immediately preceding such Interest Payment Date]/[15th calendar day immediately preceding such Interest Payment Date
(whether or not a Business Day)]*
	  	 Redeemable: Yes ☒ No ☐
 Redemption
Date: On or after September 2, 2021 (the “Par Call Date”).
 Redemption Price: On or after the Par Call Date, at a price equal to 100%
of the principal amount of this Security or the portion thereof to be redeemed plus accrued and unpaid interest on the principal amount being redeemed to, but excluding, the Redemption Date.


   

 

	* 	 NTD: Insert first bracketed language if Global Security otherwise insert second bracketed language.




  
 21 













 This Security is not an Original Issue Discount Security 

within the meaning of the within-mentioned Indenture. 
  

 
  

			
	 Principal Amount
	  	Registered No. T-[ ]
	
$_______________†
	  	CUSIP 15189W AN0

 CENTERPOINT ENERGY RESOURCES CORP., a corporation duly organized and existing under the laws of the State of Delaware,
formerly known as NorAm Energy Corp. (herein called the “Company,” which term includes any successor Person under the Indenture referred to below), for value received, hereby promises to pay to 

***CEDE & Co.*** 
 , or its registered
assigns, the principal sum of                 DOLLARS on the Stated Maturity specified above, and to pay interest thereon from the Original Interest Accrual Date
specified above or from the most recent Interest Payment Date to which interest has been paid or duly provided for, quarterly in arrears on the Interest Payment Dates specified above in each year, commencing on June 2, 2021, and at Stated
Maturity, at the Interest Rate per annum specified above, until the principal hereof is paid or made available for payment. The amount of interest payable on any Interest Payment Date shall be computed on the basis of the actual number of days
for which interest is payable in the relevant interest period, divided by 360. 
 The Interest Rate for the period from the issue date to the first LIBOR
Rate Reset Date shall be equal to the Three-Month LIBOR Rate as determined by the Calculation Agent on March 1, 2021 plus the Margin. Following the initial interest period the Interest Rate for each subsequent interest period shall be equal to
the Three Month LIBOR Rate as determined by the Calculation Agent on the related LIBOR Rate Reset Date, plus the Margin. Such Interest Rate will be reset on the 2nd day of the months of March, June, September and December of each year beginning on
June 2, 2021 (each, a “LIBOR Rate Reset Date”). An interest period is the period commencing on an Interest Payment Date (or, in the case of the initial interest period, commencing on March 2, 2021) and ending on the day
preceding the next Interest Payment Date. Promptly upon such determination, the Calculation Agent will notify the Trustee, if the person serving as the Trustee is not then serving as the Calculation Agent, of the Interest Rate for the new interest
period. The Interest Rate determined by the Calculation Agent, absent manifest error, shall be binding and conclusive upon the beneficial owners and registered holders of this Security, the Company and the Trustee. 

 

	† 	 Reference is made to Schedule A attached hereto with respect to decreases and increases in the aggregate
principal amount of Securities evidenced hereby. 














 Notwithstanding the above, if the Company (or the Designee) determines on or prior to the relevant LIBOR
Interest Determination Date that a Benchmark Transition Event and its related Benchmark Replacement Date have occurred with respect to the then current Benchmark, then, the Interest Rate that will be payable for each interest period will be an
annual rate equal to the sum of the Benchmark Replacement and the Margin in the manner set forth in the Indenture. However, if the Company (or the Designee) determines that a Benchmark Transition Event and its related Benchmark Replacement Date have
occurred with respect to the then current Benchmark, but for any reason the Benchmark Replacement has not been determined as of the relevant LIBOR Interest Determination Date, the Interest Rate for the applicable interest period will be equal to the
Interest Rate for the immediately preceding interest period, as determined by the Company (or the Designee). 
 The interest so payable, and punctually paid
or duly provided for, on any Interest Payment Date, as provided in the Indenture, shall be paid to the Person in whose name this Security (or one or more Predecessor Securities) shall have been registered on the Regular Record Date; provided further
that interest payable on the Maturity Date or on the Redemption Date shall be paid to the Person to whom principal is paid. Any such interest not so punctually paid or duly provided for shall forthwith cease to be payable to the Holder on such
Regular Record Date and shall be paid as provided in said Indenture. 
 If any LIBOR Rate Reset Date falls on a day that is not a Business Day, the LIBOR
Rate Reset Date will be postponed to the next day that is a Business Day, except that if that Business Day is in the next succeeding calendar month, the LIBOR Rate Reset Date will be the next preceding Business Day. The Interest Rate in effect on
any LIBOR Rate Reset Date will be the applicable rate as reset on that date. The Interest Rate applicable to any other day will either be the initial Interest Rate or the Interest Rate as reset on the immediately preceding LIBOR Rate Reset Date.

 If any Interest Payment Date (other than at the Maturity Date) is not a Business Day, then such Interest Payment Date shall be the next succeeding
Business Day, except that if such Business Day is in the next calendar month, such Interest Payment Date shall be the immediately preceding Business Day. If the Maturity Date of this Security falls on a day that is not a Business Day, the payment of
principal and interest will be made on the next succeeding Business Day, and no interest shall accrue on such amounts for the period from and after such Maturity Date. 

Payment of the principal of (and premium, if any) and any such interest on this Security will be made at the Corporate Trust Office of the Trustee, in such
coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts; provided, however, that at the option of the Company payment of interest may be made (i) by check
mailed to the address of the Person entitled thereto as such address shall appear in the Security Register or (ii) by wire transfer in immediately available funds at such place and to such account as may be designated in writing by the Person
entitled thereto as specified in the Security Register. 
 Reference is hereby made to the further provisions of this Security set forth on the reverse
hereof, which further provisions shall for all purposes have the same effect as if set forth at this place. 












 Unless the certificate of authentication hereon has been executed by the Trustee referred to on the reverse
hereof by manual signature, this Security shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purpose. 












 IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed. 

 

							
	Dated: March 2, 2021	 		 	CENTERPOINT ENERGY RESOURCES CORP.
				
		 		 	By:	 	
                     
        

		 		 	Name: Jason P. Wells
		 		 	Title: Executive Vice President and Chief Financial Officer
	(SEAL)
	
	Attest:
	  
	 		 		 	
	Name: Vincent A. Mercaldi
	Title: Corporate Secretary

 CERTIFICATE OF AUTHENTICATION 

This is one of the Securities of the series designated therein referred to in the within-mentioned Indenture. 

 

							
		 		 	THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.,
		 		 	As Trustee
	Dated: March 2, 2021	 		 		 	
		 		 	By:	 	  

		 		 		 	Authorized Signatory













 SCHEDULE A 

The initial aggregate principal amount of Securities evidenced by the Certificate to which this Schedule is attached is
$         . The notations on the following table evidence decreases and increases in the aggregate principal amount of Securities evidenced by such Certificate. 

 

									
	 Date of Adjustment
	  	Decrease in Aggregate
Principal Amount of
Securities	  	Increase in Aggregate
Principal Amount of
Securities	  	Aggregate Principal
Amount of Securities
Remaining After
Such Decrease or
Increase	  	Notation by
Security
Registrar













 [FORM OF REVERSE SIDE OF SECURITY] 

CENTERPOINT ENERGY RESOURCES CORP. 

FLOATING RATE SENIOR NOTES DUE 2023 

This Security is one of a duly authorized issue of securities of the Company (herein called the “Securities”), issued and to
be issued in one or more series under an Indenture, dated as of February 1, 1998, as previously supplemented and amended including by the Supplemental Indenture No. 19, dated as of March 2, 2021 (collectively herein called the
“Indenture,” which term shall have the meaning assigned to it in such instrument), between the Company and The Bank of New York Mellon Trust Company, N.A. (successor to JPMorgan Chase Bank, National Association (formerly Chase Bank
of Texas, National Association)), as Trustee (herein called the “Trustee,” which term includes any successor trustee under the Indenture), to which Indenture and all indentures supplemental thereto reference is hereby made for a
statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Trustee and the Holders of the Securities and of the terms upon which the Securities are, and are to be, authenticated and
delivered. This Security is one of the series designated on the face hereof, initially limited in aggregate principal amount to $1,000,000,000; provided, however, that the authorized aggregate principal amount of the Securities
may be increased above such amount by a Board Resolution to such effect. 
 This Security shall be redeemable, at the option of the Company,
at any time or from time to time, in whole or in part, on or after September 2, 2021 (the “Par Call Date”) at a price equal to 100% of the principal amount of this Security (or such portion to be redeemed) plus accrued and
unpaid interest on the principal amount being redeemed, if any, to, but excluding, the Redemption Date. The Trustee shall have no responsibility for the calculation of such amount. 

In the event of redemption of this Security in part only, a new Security or Securities of this series and of like tenor for the unredeemed
portion hereof will be issued in the name of the Holder hereof upon the cancellation hereof. 
 The Securities of this series are not
entitled to the benefit of any sinking fund. 
 The Indenture contains provisions for satisfaction and discharge of the entire indebtedness
of this Security upon compliance by the Company with certain conditions set forth in the Indenture. 
 The Indenture contains provisions for
defeasance at any time of the entire indebtedness of this Security or certain restrictive covenants and Events of Default with respect to this Security, in each case upon compliance with certain conditions set forth in the Indenture (as supplemented
by the Supplemental Indenture). 
 If an Event of Default with respect to Securities of this series shall occur and be continuing, the
principal of the Securities of this series may be declared due and payable in the manner and with the effect provided in the Indenture. 












 The Indenture permits, with certain exceptions as therein provided, the amendment thereof
and the modification of the rights and obligations of the Company and the rights of the Holders of the Securities of each series to be affected under the Indenture at any time by the Company and the Trustee with the consent of the Holders of a
majority in principal amount of the Securities at the time Outstanding of each series to be affected. The Indenture also contains provisions permitting the Holders of specified percentages in principal amount of the Securities of each series at
the time Outstanding, on behalf of the Holders of all Securities of such series, to waive compliance by the Company with certain provisions of the Indenture (and certain past defaults under the Indenture and their consequences. Any such consent
or waiver by the Holder of this Security shall be conclusive and binding upon such Holder and upon all future Holders of this Security and of any Security issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof,
whether or not notation of such consent or waiver is made upon this Security. 
 As provided in and subject to the provisions of the
Indenture, the Holder of this Security shall not have the right to institute any proceeding with respect to the Indenture or for the appointment of a receiver or trustee or for any other remedy thereunder, unless such Holder shall have previously
given the Trustee written notice of a continuing Event of Default with respect to the Securities of this series, the Holders of not less than 33% in principal amount of the Securities of this series at the time Outstanding shall have made written
request to the Trustee to institute proceedings in respect of such Event of Default as Trustee and offered the Trustee reasonable indemnity, and the Trustee shall not have received from the Holders of a majority in principal amount of Securities of
this series at the time Outstanding a direction inconsistent with such request, and shall have failed to institute any such proceeding, for 60 days after receipt of such notice, request and offer of indemnity. The foregoing shall not apply to
any suit instituted by the Holder of this Security for the enforcement of any payment of principal hereof or any premium or interest hereon on or after the respective due dates expressed herein. 

No reference herein to the Indenture and no provision of this Security or of the Indenture shall alter or impair the obligation of the
Company, which is absolute and unconditional, to pay the principal of and any premium and interest on this Security at the times, place and rate, and in the coin or currency, herein prescribed. 

As provided in the Indenture and subject to certain limitations therein set forth, the transfer of this Security is registrable in the
Security Register, upon surrender of this Security for registration of transfer at the office or agency of the Company in any place where the principal of and any premium and interest on this Security are payable, duly endorsed by, or accompanied by
a written instrument of transfer in form satisfactory to the Company and the Security Registrar duly executed by the Holder hereof or his attorney duly authorized in writing, and thereupon one or more new Securities of this series and of like tenor,
of authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees. No service charge shall be made for any such registration of transfer or exchange, but the Company may require
payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. 












 Prior to due presentment of this Security for registration of transfer, the Company, the
Trustee and any agent of the Company or the Trustee may treat the Person in whose name this Security is registered as the owner hereof for all purposes, whether or not this Security be overdue, and neither the Company, the Trustee nor any such agent
shall be affected by notice to the contrary. 
 The Securities of this series are issuable only in registered form without coupons in
minimum denominations of $2,000 principal amount and integral multiples of $1,000 principal amount in excess thereof. As provided in the Indenture and subject to certain limitations therein set forth, Securities of this series are exchangeable
for a like aggregate principal amount of Securities of this series and of like tenor of a different authorized denomination, as requested by the Holder surrendering the same. 

All terms used in this Security which are defined in the Indenture shall have the meanings assigned to them in the Indenture. 

THE INDENTURE AND THIS SECURITY SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.