Document:

EX-4.7

 Exhibit 4.7 
 REGISTRATION RIGHTS AGREEMENT 
 This REGISTRATION RIGHTS AGREEMENT dated
June 24, 2013 (this “Agreement”) is entered into by and among Energy Transfer Partners, L.P., a Delaware limited partnership (the “Partnership”), on the one hand, and J.P. Morgan Securities LLC
(“J.P. Morgan”) and UBS Securities LLC (“UBS” and together with J.P. Morgan, the “Dealer Managers”). 
 The Partnership, the Dealer Managers and Southern Union Company, a Delaware corporation and indirectly wholly-owned subsidiary of the Partnership (“SUG”), are parties to a Dealer Manager
Agreement, dated May 16, 2013 (the “Dealer Manager Agreement”). As described in the Dealer Manager Agreement, the Partnership proposes to make simultaneous exchange offers (collectively, the “Offer”) for any
and all of the outstanding notes of each series set forth on Schedule I hereto (the “Outstanding SUG Notes”) issued by SUG in exchange for newly issued notes in the Partnership (the “Securities”) as set forth on
Schedule I hereto. The Securities to be issued in exchange for the Outstanding SUG Notes will be issued pursuant to, as the case may be, (i) an indenture governing senior debt securities, dated as of January 18, 2005, among the
Partnership, the Partnership’s subsidiaries named therein and U.S. Bank National Association (as successor to Wachovia Bank, National Association), as trustee, as amended and supplemented to date (the “Senior Indenture”) and
(ii) a subordinated indenture governing junior subordinated debt securities, dated June 24, 2013, between the Partnership and U.S. Bank National Association, as trustee, as amended and supplemented to date (the “Subordinated
Indenture”). In connection with the Dealer Manager Agreement and the Offer, the Partnership has agreed to provide to the Holders (as defined herein) of the Securities and their direct and indirect transferees the registration rights with
respect to the Securities set forth in this Agreement. The execution and delivery of this Agreement is a condition to the closing under the Dealer Manager Agreement. 
 In consideration of the foregoing, the parties hereto agree as follows: 
 1.
Definitions. As used in this Agreement, the following terms shall have the following meanings: 

“Agreement” shall have the meaning set forth in the preamble. 

“Business Day” shall mean any day that is not a Saturday, Sunday or other day on which commercial banks in New York City
are authorized or required by law to remain closed. 
 “Dealer Manager Agreement” shall have the meaning set
forth in the preamble. 

 “Dealer Managers” shall have the meaning set forth in the preamble.

 “Exchange Act” shall mean the Securities Exchange Act of 1934, as amended from time to time. 

“Exchange Dates” shall have the meaning set forth in Section 2(a)(ii) hereof. 

“Exchange Offer Registration” shall mean a registration under the Securities Act effected pursuant to Section 2(a)
hereof. 
 “Exchange Offer Registration Statement” shall mean an exchange offer registration statement on Form
S-4 (or, if applicable, on another appropriate form) and all amendments and supplements to such registration statement, in each case including the Prospectus contained therein or deemed a part thereof, all exhibits thereto and any document
incorporated by reference therein. 
 “FINRA” means the Financial Industry Regulatory Authority, Inc.

 “Free Writing Prospectus” means each free writing prospectus (as defined in Rule 405 under the Securities
Act) prepared by or on behalf of the Partnership or used or referred to by the Partnership in connection with the sale of the Securities or the Registered Exchange Securities. 
 “Holders” shall mean the owners of Registrable Securities under the Senior Indenture and/or Subordinated Indenture, as the case may be; provided that, for purposes of
Section 4 and Section 5 hereof, the term “Holders” shall include Participating Broker-Dealers. 

“Indemnified Person” shall have the meaning set forth in Section 5(c) hereof. 

“Indemnifying Person” shall have the meaning set forth in Section 5(c) hereof. 

“Inspector” shall have the meaning set forth in Section 3(a)(xiv) hereof. 

“Issue Date” shall mean the date the Securities are issued by the Partnership. 

“Issuer Information” shall have the meaning set forth in Section 5(a) hereof. 

“J.P. Morgan” shall have the meaning set forth in the preamble. 

  
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 “Majority Holders” shall mean the Holders of a majority of the aggregate
principal amount of the outstanding Registrable Securities; provided that whenever the consent or approval of Holders of a specified percentage of Registrable Securities is required hereunder, any Registrable Securities owned directly or
indirectly by the Partnership or any of its affiliates shall not be counted in determining whether such consent or approval was given by the Holders of such required percentage or amount; and provided, further, that if the Partnership
shall issue any additional Securities under the Senior Indenture or Subordinated Indenture, as the case may be, prior to consummation of the Registered Exchange Offer or, if applicable, the effectiveness of any Shelf Registration Statement, such
additional Securities and the Registrable Securities to which this Agreement relates shall be treated together as one class for purposes of determining whether the consent or approval of Holders of a specified percentage of Registrable Securities
has been obtained. 
 “Notice and Questionnaire” shall mean a notice of registration statement and selling
security holder questionnaire distributed to a Holder by the Partnership pursuant to Section 2(b) and Section 3(b) hereof. 
 “Offer” shall have the meaning set forth in the preamble. 

“Outstanding SUG Notes” shall have the meaning set forth in the preamble. 

“Participating Broker-Dealers” shall have the meaning set forth in Section 4(a) hereof. 

“Participating Holder” shall mean any Holder of Registrable Securities that has returned a completed and signed Notice
and Questionnaire to the Partnership in accordance with Section 2(b) hereof. 
 “Partnership” shall have
the meaning set forth in the preamble and shall also include the Partnership’s successors. 
 “Person”
shall mean an individual, partnership, limited liability company, corporation, trust or unincorporated organization, or a government or agency or political subdivision thereof. 

“Prospectus” shall mean the prospectus included in, or, pursuant to the rules and regulations of the Securities Act,
deemed a part of, a Registration Statement, including any preliminary prospectus, and any such prospectus as amended or supplemented by any prospectus supplement, including a prospectus supplement with respect to the terms of the offering of any
portion of the Registrable Securities covered by a Shelf Registration Statement, and by all other amendments and supplements to such prospectus, and in each case including any document incorporated by reference therein. 

“Registered Exchange Offer” shall mean the exchange offer by the Partnership of Registered Exchange Securities for
Registrable Securities pursuant to Section 2(a) hereof. 

  
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 “Registered Exchange Securities” shall mean any securities issued by the
Partnership under the Senior Indenture or the Subordinated Indenture, as the case may be, containing terms identical to the Securities (except that the Registered Exchange Securities will not be subject to restrictions on transfer or to any increase
in annual interest rate for failure to comply with this Agreement) and to be offered to Holders of Securities in exchange for Securities pursuant to the Registered Exchange Offer. 

“Registrable Securities” shall mean the Securities; provided that the Securities shall cease to be Registrable
Securities (i) when a Registration Statement with respect to such Securities has become effective under the Securities Act and such Securities have been exchanged or disposed of pursuant to such Registration Statement or (ii) when such
Securities cease to be outstanding. 
 “Registration Default” shall mean the occurrence of any of the
following: (i) the Registered Exchange Offer is not completed within 30 Business Days after the Exchange Offer Registration Statement relating to the Registered Exchange Offer becomes effective (if the Registered Exchange Offer is then required
to be made), (ii) the Exchange Offer Registration Statement or the Shelf Registration Statement, if required pursuant to Section 2(b)(i) or Section 2(b)(ii) hereof, has not become effective on or prior to the Target Effectiveness
Date, (iii) any Exchange Offer Registration Statement or Shelf Registration Statement required by this Agreement is filed and declared or becomes effective but shall thereafter either be withdrawn by the Partnership or shall become subject to
an effective stop order issued pursuant to Section 8(d) of the Securities Act suspending the effectiveness of such Registration Statement (except as specifically permitted herein) without being succeeded promptly by an additional Registration
Statement filed and declared or otherwise becoming effective; or (iv) the Partnership requires Holders to refrain from disposing of their Registrable Securities due to an event causing a Suspension Period to the extent that such period exceeds
60 days in the aggregate during any consecutive 12-month period. 
 “Registration Expenses” shall mean any and
all expenses incident to performance of or compliance by the Partnership with this Agreement, including without limitation: (i) all SEC, stock exchange or FINRA registration and filing fees, (ii) all fees and expenses incurred in
connection with compliance with state securities or blue sky laws (including reasonable fees and disbursements of counsel for any Underwriters or Holders in connection with blue sky qualification of any Registered Exchange Securities or Registrable
Securities), (iii) all expenses of any Persons in preparing or assisting in preparing, word processing, printing and distributing any Registration Statement, any Prospectus, any Free Writing Prospectus and any amendments or supplements thereto,
any underwriting agreements, securities sales agreements or other similar agreements and any other documents relating to the performance of and compliance with this Agreement, (iv) all rating agency fees, (v) all fees and

  
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disbursements relating to the qualification of each of the Senior Indenture and Subordinated Indenture under applicable securities laws, (vi) the fees and disbursements of the Trustee and
its counsel, (vii) the fees and disbursements of counsel for the Partnership and, in the case of a Shelf Registration Statement, the fees and disbursements of one counsel for the Participating Holders (which counsel shall be selected by the
Participating Holders holding a majority of the aggregate principal amount of Registrable Securities held by such Participating Holders and which counsel may also be counsel for the Dealer Managers) and (viii) the fees and disbursements of the
independent registered public accountants of the Partnership, including the expenses of any special audits or “comfort” letters required by or incident to the performance of and compliance with this Agreement, but excluding fees and
expenses of counsel to the Underwriters (other than fees and expenses set forth in clause (ii) above) or the Holders and underwriting discounts and commissions, brokerage commissions and transfer taxes, if any, relating to the sale or
disposition of Registrable Securities by a Holder. 
 “Registration Statement” shall mean any registration
statement of the Partnership that covers any of the Registered Exchange Securities or Registrable Securities pursuant to the provisions of this Agreement and all amendments and supplements to any such registration statement, including post-effective
amendments, in each case including the Prospectus contained therein or deemed a part thereof, all exhibits thereto and any document incorporated by reference therein. 
 “SEC” shall mean the United States Securities and Exchange Commission. 
 “Securities” shall have the meaning set forth in the preamble. 

“Securities Act” shall mean the Securities Act of 1933, as amended from time to time. 

“Senior Indenture” shall have the meaning set forth in the preamble. 

“Shelf Effectiveness Period” shall have the meaning set forth in Section 2(b) hereof. 

“Shelf Registration” shall mean a registration effected pursuant to Section 2(b) hereof. 

“Shelf Registration Statement” shall mean a “shelf” registration statement of the Partnership that covers all
or a portion of the Registrable Securities (but no other securities unless approved by a majority in aggregate principal amount of the Securities held by the Participating Holders) on an appropriate form under Rule 415 under the Securities Act, or
any similar rule that may be adopted by the SEC, and all amendments and supplements to such registration statement, including post-effective amendments, in each case including the Prospectus contained therein or deemed a part thereof, all exhibits
thereto and any document incorporated by reference therein. 

  
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 “Shelf Request” shall have the meaning set forth in Section 2(b)
hereof. 
 “Special Interest” shall have the meaning set forth in Section 2(d) hereof. 

“Staff” shall mean the staff of the SEC. 
 “Subordinated Indenture” shall have the meaning set forth in the preamble. 
 “SUG” shall have the meaning set forth in the preamble. 

“Suspension Period” shall have the meaning set forth in Section 3(d) hereof. 

“Target Effectiveness Date” shall mean 180 days after the Issue Date. 

“Trust Indenture Act” shall mean the Trust Indenture Act of 1939, as amended from time to time. 

“Trustee” shall mean the trustee with respect to the Securities under the Senior Indenture or Subordinated Indenture, as
the case may be. 
 “Underwriter” shall have the meaning set forth in Section 3(e) hereof. 

“Underwritten Offering” shall mean an offering in which Registrable Securities are sold to an Underwriter for reoffering
to the public. 
 2. Registration Under the Securities Act. (a) To the extent not prohibited by any applicable law
or applicable interpretations of the Staff, the Partnership shall use its commercially reasonable efforts to (x) cause to be filed an Exchange Offer Registration Statement covering an offer to the Holders to exchange all the Registrable
Securities for Registered Exchange Securities and (y) have such Registration Statement become effective by the Target Effectiveness Date and remain effective until 180 days after the last Exchange Date for use by one or more Participating
Broker-Dealers. The Partnership shall commence the Registered Exchange Offer promptly (but no later than ten Business Days) after the Exchange Offer Registration Statement is declared effective by the SEC and use its commercially reasonable efforts
to complete the Registered Exchange Offer not later than 30 Business Days after the Exchange Offer Registration Statement becomes effective. 

  
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 The Partnership shall commence the Registered Exchange Offer by mailing or making available
the related Prospectus, appropriate letters of transmittal and other accompanying documents to each Holder stating, in addition to such other disclosures as are required by applicable law, substantially the following: 

 

	 	(i)	that the Registered Exchange Offer is being made pursuant to this Agreement and that all Registrable Securities validly tendered and not properly withdrawn will be
accepted for exchange; 

  

	 	(ii)	the dates of acceptance for exchange (which shall be a period of at least 20 Business Days from the date such notice is mailed or made available) (the “Exchange
Dates”); 

  

	 	(iii)	that any Registrable Security not tendered will remain outstanding and continue to accrue interest but will not retain any rights under this Agreement, except as
otherwise specified herein; 

  

	 	(iv)	that any Holder electing to have a Registrable Security exchanged pursuant to the Registered Exchange Offer will be required to (A) surrender such Registrable
Security, together with the appropriate letters of transmittal, to the institution and at the address and in the manner specified in the notice, or (B) effect such exchange otherwise in compliance with the applicable procedures of the
depositary for such Registrable Security, in each case prior to the close of business on the last Exchange Date; and 

  

	 	(v)	that any Holder will be entitled to withdraw its election, not later than the close of business on the last Exchange Date, by (A) sending to the institution and at
the address specified in the notice, a telegram, facsimile transmission or letter setting forth the name of such Holder, the principal amount of Registrable Securities delivered for exchange and a statement that such Holder is withdrawing its
election to have such Securities exchanged or (B) effecting such withdrawal in compliance with the applicable procedures of the depositary for the Registrable Securities. 

As a condition to participating in the Registered Exchange Offer, a Holder will be required to represent to the Partnership that
(1) any Registered Exchange Securities to be received by it will be acquired in the ordinary course of its business, (2) at the time of the commencement of the Registered Exchange Offer it has no arrangement or understanding with any
Person to participate in the distribution (within the meaning of the Securities Act) of the Registered Exchange Securities in violation of the provisions of the Securities Act, (3) it is not an “affiliate” (within the meaning of Rule
405 under the Securities Act) of the Partnership and (4) if such Holder is a broker-dealer that will receive Registered Exchange Securities for its own account in exchange for Registrable Securities that were acquired as a result of
market-making or other trading activities, then such Holder will deliver a Prospectus (or, to the extent permitted by law, make available a Prospectus to purchasers) in connection with any resale of such Registered Exchange Securities. 

  
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 As soon as practicable after the last Exchange Date, the Partnership shall: 

 

	 	(I)	accept for exchange Registrable Securities or portions thereof validly tendered and not properly withdrawn pursuant to the Registered Exchange Offer; and

  

	 	(II)	deliver, or cause to be delivered, to the Trustee for cancellation all Registrable Securities or portions thereof so accepted for exchange by the Partnership and issue,
and cause the Trustee to promptly authenticate and deliver to each Holder, Registered Exchange Securities equal in principal amount to the principal amount of the Registrable Securities tendered by such Holder. 

The Partnership shall use its commercially reasonable efforts to complete the Registered Exchange Offer as provided above and shall
comply with the applicable requirements of the Securities Act, the Exchange Act and other applicable laws and regulations in connection with the Registered Exchange Offer. The Registered Exchange Offer shall not be subject to any conditions, other
than that the Registered Exchange Offer does not violate any applicable law or applicable interpretations of the Staff. 
 (b)
In the event that (i) the Partnership determines that the Exchange Offer Registration provided for in Section 2(a) hereof is not available or the Registered Exchange Offer may not be completed as soon as practicable after the last Exchange
Date because it would violate any applicable law or applicable interpretations of the Staff, (ii) the Exchange Offer Registration Statement does not become effective by the Target Effectiveness Date or (iii) the Exchange Offer is not for
any other reason completed within 30 Business Days after the Exchange Offer Registration Statement becomes effective, the Partnership shall use its commercially reasonable efforts to cause to be filed as soon as practicable after such determination
date, a Shelf Registration Statement providing for the sale of all the Registrable Securities by the Holders thereof and to have such Shelf Registration Statement become effective; provided that no Holder will be entitled to have any
Registrable Securities included in any Shelf Registration Statement, or entitled to use the prospectus forming a part of such Shelf Registration Statement, until such Holder shall have delivered a completed and signed Notice and Questionnaire and
provided such other information regarding such Holder to the Partnership as is contemplated by Section 3(b) hereof. 
 If a
Shelf Registration Statement is required to be filed by the Partnership, the Partnership agrees to use its commercially reasonable efforts to keep the Shelf Registration Statement continuously effective until the Securities cease to be Registrable
Securities (the “Shelf Effectiveness Period”). The Partnership further agrees to supplement or amend the Shelf Registration Statement, the related Prospectus and any Free Writing Prospectus if required by the rules, regulations or
instructions applicable to the registration form used by the 

  
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Partnership for such Shelf Registration Statement or by the Securities Act or by any other rules and regulations thereunder or if reasonably requested by a Holder of Registrable Securities with
respect to information relating to such Holder, and to use its commercially reasonable efforts to cause any such amendment to become effective, if required, and such Shelf Registration Statement, Prospectus or Free Writing Prospectus, as the case
may be, to become usable as soon as thereafter practicable. The Partnership agrees to furnish to the Participating Holders copies of any such supplement or amendment promptly after its being used or filed with the SEC. 

(c) The Partnership shall pay all Registration Expenses in connection with any registration pursuant to Section 2(a) or
Section 2(b) hereof. Each Holder shall pay all underwriting discounts and commissions, brokerage commissions and transfer taxes, if any, relating to the sale or disposition of such Holder’s Registrable Securities pursuant to the Shelf
Registration Statement. 
 (d) An Exchange Offer Registration Statement pursuant to Section 2(a) hereof will not be deemed
to have become effective unless it has been declared effective by the SEC. A Shelf Registration Statement pursuant to Section 2(b) hereof will not be deemed to have become effective unless it has been declared effective by the SEC or is
automatically effective upon filing with the SEC as provided by Rule 462 under the Securities Act. 
 If a Registration Default
occurs, the interest rate on the Registrable Securities will be increased by (i) 0.25% per annum for the first 90-day period beginning on the day immediately following such Registration Default and (ii) an additional 0.25% per
annum with respect to each subsequent 90-day period, in each case, until and including the date that no Registration Default exists, up to a maximum increase of 1.00% per annum (such increase in interest rate being herein referred to as
“Special Interest”). A Registration Default ends when the Securities cease to be Registrable Securities or, if earlier, (1) in the case of a Registration Default under clause (i) of the definition thereof, when the
Registered Exchange Offer is completed, (2) in the case of a Registration Default under clause (ii) of the definition thereof, when the Shelf Registration Statement becomes effective or (3) in the case of a Registration Default under
clause (iii) or clause (iv) of the definition thereof, when the Shelf Registration Statement again becomes effective or the Prospectus again becomes usable. If at any time more than one Registration Default has occurred and is continuing,
then, until the next date that there is no Registration Default, the increase in interest rate provided for by this paragraph shall apply as if there occurred a single Registration Default that begins on the date that the earliest such Registration
Default occurred and ends on such next date that there is no Registration Default. 
 (e) Without limiting the remedies available
to the Dealer Managers and the Holders, the Partnership acknowledges that any failure by the Partnership to comply with its obligations under Section 2(a) and Section 2(b) hereof may result in material irreparable injury to the Dealer
Managers or the Holders for which 

  
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there is no adequate remedy at law, that it will not be possible to measure damages for such injuries precisely and that, in the event of any such failure, the Dealer Managers or any Holder may
obtain such relief as may be required to specifically enforce the Partnership’s obligations under Section 2(a) and Section 2(b) hereof. 
 3. Registration Procedures. (a) In connection with its obligations pursuant to Section 2(a) and Section 2(b) hereof, the Partnership shall as expeditiously as possible: 

(i) prepare and file with the SEC a Registration Statement on the appropriate form under the Securities Act, which form (A) shall be
selected by the Partnership, (B) shall, in the case of a Shelf Registration, be available for the sale of the Registrable Securities by the Holders thereof and (C) shall comply as to form in all material respects with the requirements of
the applicable form and include all financial statements required by the SEC to be filed therewith; and use its commercially reasonable efforts to cause such Registration Statement to become effective and remain effective for the applicable period
in accordance with Section 2 hereof; 
 (ii) prepare and file with the SEC such amendments and post-effective amendments to
each Registration Statement and any other required documents as may be necessary to keep such Registration Statement effective for the applicable period in accordance with Section 2 hereof and cause each Prospectus to be supplemented by any
required prospectus supplement and, as so supplemented, to be filed pursuant to Rule 424 under the Securities Act; and keep each Prospectus current during the period described in Section 4(3) of and Rule 174 under the Securities Act that is
applicable to transactions by brokers or dealers with respect to the Registrable Securities or Registered Exchange Securities; 

(iii) to the extent any Free Writing Prospectus is used, file with the SEC any Free Writing Prospectus that is required to be filed by the
Partnership with the SEC in accordance with the Securities Act and to retain any Free Writing Prospectus not required to be filed; 
 (iv) in the case of a Shelf Registration, furnish to each Participating Holder, to counsel for the Dealer Managers, to counsel for such Participating Holders and to each Underwriter of an Underwritten
Offering of Registrable Securities, if any, without charge, as many copies of each Prospectus, preliminary prospectus or Free Writing Prospectus, and any amendment or supplement thereto, as such Participating Holder, counsel or Underwriter may
reasonably request in order to facilitate the sale or other disposition of the Registrable Securities thereunder; and, subject to Section 3(c) hereof, the Partnership consents to the use of such Prospectus, preliminary prospectus or such Free
Writing Prospectus and any amendment or supplement thereto in accordance with applicable law by each of the Participating Holders and any 

  
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such Underwriters in connection with the offering and sale of the Registrable Securities covered by and in the manner described in such Prospectus, preliminary prospectus or such Free Writing
Prospectus or any amendment or supplement thereto in accordance with applicable law; 
 (v) use its commercially reasonable
efforts to register or qualify the Registrable Securities under all applicable state securities or blue sky laws of such jurisdictions as any Participating Holder shall reasonably request in writing by the time the applicable Registration Statement
becomes effective; cooperate with such Participating Holders in connection with any filings required to be made with FINRA; and do any and all other acts and things that may be reasonably necessary or advisable to enable each Participating Holder to
complete the disposition in each such jurisdiction of the Registrable Securities owned by such Participating Holder; provided that the Partnership shall not be required to (1) qualify as a foreign corporation or other entity or as a
dealer in securities in any such jurisdiction where it would not otherwise be required to so qualify, (2) file any general consent to service of process in any such jurisdiction or (3) subject itself to taxation in any such jurisdiction if
it is not so subject; 
 (vi) notify counsel for the Dealer Managers and, in the case of a Shelf Registration, notify each
Participating Holder and counsel for such Participating Holders promptly and, if requested by any such Participating Holder or counsel, confirm such advice in writing (1) when a Registration Statement has become effective, when any
post-effective amendment thereto has been filed and becomes effective, when any Free Writing Prospectus has been filed or any amendment or supplement to the Prospectus or any Free Writing Prospectus has been filed, (2) of any request by the SEC
or any state securities authority for amendments and supplements to a Registration Statement, Prospectus or any Free Writing Prospectus or for additional information after the Registration Statement has become effective, (3) of the issuance by
the SEC or any state securities authority of any stop order suspending the effectiveness of a Registration Statement or the initiation of any proceedings for that purpose, including the receipt by the Partnership of any notice of objection of the
SEC to the use of a Shelf Registration Statement or any post-effective amendment thereto pursuant to Rule 401(g)(2) under the Securities Act, (4) if, between the applicable effective date of a Shelf Registration Statement and the closing of any
sale of Registrable Securities covered thereby, the representations and warranties of the Partnership contained in any underwriting agreement, securities sales agreement or other similar agreement, if any, relating to an offering of such Registrable
Securities cease to be true and correct in all material respects or if the Partnership receives any notification with respect to the suspension of the qualification of the Registrable Securities for sale in any jurisdiction or the initiation of any
proceeding for such purpose, (5) of the happening of any event during the period a Registration Statement is effective that makes any statement made in such Registration Statement or the related Prospectus or any Free Writing Prospectus untrue
in any material respect or that requires the making of any changes in such Registration Statement or Prospectus or any Free Writing 

  
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Prospectus in order to make the statements therein not misleading and (6) of any determination by the Partnership that a post-effective amendment to a Registration Statement or any amendment
or supplement to the Prospectus or any Free Writing Prospectus would be appropriate; 
 (vii) use its commercially reasonable
efforts to obtain the withdrawal of any order suspending the effectiveness of a Registration Statement or, in the case of a Shelf Registration, the resolution of any objection of the SEC pursuant to Rule 401(g)(2) under the Securities Act, including
by filing an amendment to such Registration Statement on the proper form, at the earliest possible moment and provide immediate notice to each Holder or Participating Holder of the withdrawal of any such order or such resolution; 

(viii) in the case of a Shelf Registration, furnish to each Participating Holder, without charge, at least one conformed copy of each
Registration Statement and any post-effective amendment thereto (without any documents incorporated therein by reference or exhibits thereto, unless requested); 
 (ix) in the case of a Shelf Registration, cooperate with the Participating Holders to facilitate the timely preparation and delivery of certificates representing Registrable Securities to be sold and not
bearing any restrictive legends and enable such Registrable Securities to be issued in such denominations and registered in such names (consistent with the provisions of the Senior Indenture or Subordinated Indenture, as the case may be) as such
Participating Holders may reasonably request at least one Business Day prior to the closing of any sale of Registrable Securities; 
 (x) upon the occurrence of any event contemplated by Section 3(a)(vi)(5) hereof, use its commercially reasonable efforts to prepare and file with the SEC a supplement or post-effective amendment to
the applicable Exchange Offer Registration Statement or Shelf Registration Statement or the related Prospectus or any Free Writing Prospectus or any document incorporated therein by reference or file any other required document so that, as
thereafter delivered (or, to the extent permitted by law, made available) to purchasers of the Registrable Securities, such Prospectus or Free Writing Prospectus, as the case may be, will not contain any untrue statement of a material fact or omit
to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading; and the Partnership shall notify the Participating Holders (in the case of a Shelf Registration
Statement) and the Dealer Managers and any Participating Broker-Dealers known to the Partnership (in the case of an Exchange Offer Registration Statement) to suspend use of the Prospectus or any Free Writing Prospectus as promptly as practicable
after the occurrence of such an event, and such Participating Holders, such Participating Broker-Dealers and the Dealer Managers, as applicable, hereby agree to suspend use of the Prospectus or any Free Writing Prospectus, as the case may be, until
the Partnership has amended or supplemented the Prospectus or the Free Writing Prospectus, as the case may be, to correct such misstatement or omission; 

  
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 (xi) a reasonable time prior to the filing of any Registration Statement, any Prospectus,
any Free Writing Prospectus, any amendment to a Registration Statement or amendment or supplement to a Prospectus or a Free Writing Prospectus or of any document that is to be incorporated by reference into a Registration Statement, a Prospectus or
a Free Writing Prospectus after initial filing of a Registration Statement, provide copies of such document to the Dealer Managers and their counsel (and, in the case of a Shelf Registration Statement, to the Participating Holders and their counsel)
and make such of the representatives of the Partnership as shall be reasonably requested by the Dealer Managers or their counsel (and, in the case of a Shelf Registration Statement, the Participating Holders or their counsel) available for
discussion of such document; and the Partnership shall not, at any time after initial filing of a Registration Statement, use or file any Prospectus, any Free Writing Prospectus, any amendment of or supplement to a Registration Statement or a
Prospectus or a Free Writing Prospectus, or any document that is to be incorporated by reference into a Registration Statement, a Prospectus or a Free Writing Prospectus, of which the Dealer Managers and their counsel (and, in the case of a Shelf
Registration Statement, the Participating Holders and their counsel) shall not have previously been advised and furnished a copy or to which the Dealer Managers or their counsel (and, in the case of a Shelf Registration Statement, the Participating
Holders or their counsel) shall reasonably object; 
 (xii) obtain a CUSIP number for all Registered Exchange Securities or
Registrable Securities, as the case may be, not later than the initial effective date of a Registration Statement; 
 (xiii)
unless already so qualified, cause the Senior Indenture or Subordinated Indenture, as the case may be, to be qualified under the Trust Indenture Act in connection with the registration of the Registered Exchange Securities or Registrable Securities,
as the case may be; cooperate with the Trustee and the Holders to effect such changes to the Senior Indenture or Supplemental Indenture as may be required for such indenture to be so qualified in accordance with the terms of the Trust Indenture Act;
and execute, and use its commercially reasonable efforts to cause the Trustee to execute, all documents as may be required to effect such changes and all other forms and documents required to be filed with the SEC to enable such indenture to be so
qualified in a timely manner; 
 (xiv) in the case of a Shelf Registration, make available for inspection by a representative of
the Participating Holders (an “Inspector”), any Underwriter participating in any disposition pursuant to such Shelf Registration Statement, any attorneys and accountants designated by a majority in aggregate principal amount of the
Securities held by the Participating Holders and any attorneys and accountants designated by such Underwriter, at reasonable times and in a 

  
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reasonable manner, all pertinent financial and other records, documents and properties of the Partnership and its subsidiaries, and cause the respective officers, directors and employees of the
Partnership to supply all information reasonably requested by any such Inspector, Underwriter, attorney or accountant in connection with a Shelf Registration Statement; provided that if any such information is identified by the Partnership as
being confidential or proprietary, each Person receiving such information shall take such actions as are reasonably necessary to protect the confidentiality of such information to the extent such action is otherwise not inconsistent with, an
impairment of or in derogation of the rights and interests of any Inspector, Holder or Underwriter; 
 (xvi) in the case of a
Shelf Registration, use their commercially reasonable efforts to cause all Registrable Securities to be listed on any securities exchange or any automated quotation system on which similar securities issued or guaranteed by the Partnership are then
listed if requested by the Majority Holders, to the extent such Registrable Securities satisfy applicable listing requirements; 

(xvi) if reasonably requested by any Participating Holder, promptly include in a Prospectus supplement or post-effective amendment such
information with respect to such Participating Holder as such Participating Holder reasonably requests to be included therein and make all required filings of such Prospectus supplement or such post-effective amendment as soon as the Partnership has
received notification of the matters to be so included in such filing; and 
 (xvii) in the case of a Shelf Registration, enter
into such customary agreements and take all such other actions in connection therewith (including those requested by the Holders of a majority in principal amount of the Registrable Securities covered by the Shelf Registration Statement) in order to
expedite or facilitate the disposition of such Registrable Securities including, but not limited to, an Underwritten Offering and in such connection, (1) to the extent possible, make such representations and warranties to the Participating
Holders and any Underwriters of such Registrable Securities with respect to the business of the Partnership and its subsidiaries and the Registration Statement, Prospectus, any Free Writing Prospectus and documents incorporated by reference or
deemed incorporated by reference, if any, in each case, in form, substance and scope as are customarily made by issuers to underwriters in underwritten offerings and confirm the same if and when requested, (2) obtain opinions of counsel to the
Partnership (which counsel and opinions, in form, scope and substance, shall be reasonably satisfactory to the Participating Holders and such Underwriters and their respective counsel) addressed to each Participating Holder and Underwriter of
Registrable Securities, covering the matters customarily covered in opinions requested in underwritten offerings, (3) obtain “comfort” letters from the independent registered public accountants of the Partnership (and, if necessary,
any other registered public accountant of any subsidiary of the Partnership, or of any business acquired by the Partnership for 

  
 14 

 
which financial statements and financial data are or are required to be included in the Registration Statement) addressed to each Participating Holder (to the extent permitted by applicable
professional standards) and Underwriter of Registrable Securities, such letters to be in customary form and covering matters of the type customarily covered in “comfort” letters in connection with underwritten offerings, including but not
limited to financial information contained in any preliminary prospectus, Prospectus or Free Writing Prospectus and (4) deliver such documents and certificates as may be reasonably requested by the Holders of a majority in principal amount of
the Registrable Securities being sold or the Underwriters, and which are customarily delivered in underwritten offerings, to evidence the continued validity of the representations and warranties of the Partnership made pursuant to clause
(1) above and to evidence compliance with any customary conditions contained in an underwriting agreement. 
 (b) In the
case of a Shelf Registration Statement, the Partnership may require each Holder of Registrable Securities to furnish to the Partnership a Notice and Questionnaire and such other information regarding such Holder and the proposed disposition by such
Holder of such Registrable Securities as the Partnership may from time to time reasonably request in writing. 
 (c) Each
Participating Holder agrees that, upon receipt of any notice from the Partnership of the happening of any event of the kind described in Section 3(a)(vi)(3) or Section 3(a)(vi)(5) hereof, such Participating Holder will forthwith
discontinue disposition of Registrable Securities pursuant to the Shelf Registration Statement until such Participating Holder’s receipt of the copies of the supplemented or amended Prospectus and any Free Writing Prospectus contemplated by
Section 3(a)(x) hereof and, if so directed by the Partnership, such Participating Holder will deliver to the Partnership all copies in its possession, other than permanent file copies then in such Participating Holder’s possession, of the
Prospectus and any Free Writing Prospectus covering such Registrable Securities that is current at the time of receipt of such notice. 
 (d) If the Partnership shall give any notice to suspend the disposition of Registrable Securities pursuant to a Registration Statement (each such period, a “Suspension Period”), the
Partnership shall extend the period during which such Registration Statement shall be maintained effective pursuant to this Agreement by the number of days during the period from and including the date of the giving of such notice to and including
the date when the Holders of such Registrable Securities shall have received copies of the supplemented or amended Prospectus or any Free Writing Prospectus necessary to resume such dispositions. The Partnership may give any such notice only twice
during any 365-day period and any such suspensions shall not exceed 60 days for each suspension and there shall not be more than two suspensions in effect during any 365-day period. 

  
 15 

 (e) The Participating Holders who desire to do so may sell such Registrable Securities in an
Underwritten Offering. In any such Underwritten Offering, the investment bank or investment banks and manager or managers (each an “Underwriter”) that will administer the offering will be selected by the Holders of a majority in
principal amount of the Registrable Securities included in such offering. 
 4. Participation of Broker-Dealers in Registered
Exchange Offer. (a) The Staff has taken the position that any broker-dealer that receives Registered Exchange Securities for its own account in the Registered Exchange Offer in exchange for Securities that were acquired by such
broker-dealer as a result of market-making or other trading activities (a “Participating Broker-Dealer”) may be deemed to be an “underwriter” within the meaning of the Securities Act and must deliver a prospectus meeting
the requirements of the Securities Act in connection with any resale of such Registered Exchange Securities. 
 The Partnership
understands that it is the Staff’s position that if the Prospectus contained in the Exchange Offer Registration Statement includes a plan of distribution containing a statement to the above effect and the means by which Participating
Broker-Dealers may resell the Registered Exchange Securities, without naming the Participating Broker-Dealers or specifying the amount of Registered Exchange Securities owned by them, such Prospectus may be delivered by Participating Broker-Dealers
(or, to the extent permitted by law, made available to purchasers) to satisfy their prospectus delivery obligation under the Securities Act in connection with resales of Registered Exchange Securities for their own accounts, so long as the
Prospectus otherwise meets the requirements of the Securities Act. 
 (b) In light of the above, and notwithstanding the other
provisions of this Agreement, the Partnership agrees to amend or supplement the Prospectus contained in the Exchange Offer Registration Statement for a period of up to 180 days after the last Exchange Date (as such period may be extended pursuant to
Section 3(d) hereof), in order to expedite or facilitate the disposition of any Registered Exchange Securities by Participating Broker-Dealers consistent with the positions of the Staff recited in Section 4(a) above. The Partnership
further agrees that Participating Broker-Dealers shall be authorized to deliver such Prospectus (or, to the extent permitted by law, make available) during such period in connection with the resales contemplated by this Section 4. 

(c) The Dealer Managers shall have no liability to the Partnership or any Holder with respect to any request that they may make pursuant
to Section 4(b) hereof. 
 5. Indemnification and Contribution. (a) The Partnership agrees to indemnify and
hold harmless each Dealer Manager and each Holder, their respective affiliates, directors and officers and each Person, if any, who controls any Dealer Manager or any Holder within the meaning of Section 15 of the Securities Act or
Section 20 of the Exchange Act, from and against any and all losses, claims, damages and liabilities (including, without limitation, legal fees 

  
 16 

 
and other expenses incurred in connection with any suit, action or proceeding or any claim asserted, as such fees and expenses are incurred), joint or several, that arise out of, or are based
upon, (1) any untrue statement or alleged untrue statement of a material fact contained in any Registration Statement or any omission or alleged omission to state therein a material fact required to be stated therein or necessary in order to
make the statements therein not misleading, or (2) any untrue statement or alleged untrue statement of a material fact contained in any Prospectus, any Free Writing Prospectus or any “issuer information” (“Issuer
Information”) filed or required to be filed pursuant to Rule 433(d) under the Securities Act, or any omission or alleged omission to state therein a material fact necessary in order to make the statements therein, in the light of the
circumstances under which they were made, not misleading, in each case except insofar as such losses, claims, damages or liabilities arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in
reliance upon and in conformity with any information relating to any Dealer Manager or information relating to any Holder furnished to the Partnership in writing through any Dealer Manager or any selling Holder, respectively, expressly for use
therein. In connection with any Underwritten Offering permitted by Section 3, the Partnership will also indemnify the Underwriters, if any, selling brokers, dealers and similar securities industry professionals participating in the
distribution, their respective affiliates and each Person who controls such Persons (within the meaning of the Securities Act and the Exchange Act) to the same extent as provided above with respect to the indemnification of the Holders, if requested
in connection with any Registration Statement, any Prospectus, any Free Writing Prospectus or any Issuer Information. 
 (b) Each
Holder agrees, severally and not jointly, to indemnify and hold harmless the Partnership, the Dealer Managers and the other selling Holders, the directors of the Partnership, each officer of the Partnership who signed the Registration Statement and
each Person, if any, who controls the Partnership, any Dealer Manager and any other selling Holder within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act to the same extent as the indemnity set forth in
paragraph (a) above, but only with respect to any losses, claims, damages or liabilities that arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with
any information relating to such Holder furnished to the Partnership in writing by such Holder expressly for use in any Registration Statement, any Prospectus and any Free Writing Prospectus. 

(c) If any suit, action, proceeding (including any governmental or regulatory investigation), claim or demand shall be brought or asserted
against any Person in respect of which indemnification may be sought pursuant to either paragraph (a) or (b) above, such Person (the “Indemnified Person”) shall promptly notify the Person against whom such indemnification
may be sought (the “Indemnifying Person”) in writing; provided that the failure to notify the Indemnifying Person shall not relieve it from any liability that it may have under paragraph (a) or (b) above except to
the extent that it has been materially 

  
 17 

 
prejudiced (through the forfeiture of substantive rights or defenses) by such failure; and provided, further, that the failure to notify the Indemnifying Person shall not relieve it
from any liability that it may have to an Indemnified Person otherwise than under paragraph (a) or (b) above. If any such proceeding shall be brought or asserted against an Indemnified Person and it shall have notified the Indemnifying
Person thereof, the Indemnifying Person shall retain counsel reasonably satisfactory to the Indemnified Person to represent the Indemnified Person and any others entitled to indemnification pursuant to this Section 5 that the Indemnifying
Person may designate in such proceeding and shall pay the fees and expenses of such proceeding and shall pay the fees and expenses of such counsel related to such proceeding, as incurred. In any such proceeding, any Indemnified Person shall have the
right to retain its own counsel, but the fees and expenses of such counsel shall be at the expense of such Indemnified Person unless (i) the Indemnifying Person and the Indemnified Person shall have mutually agreed to the contrary;
(ii) the Indemnifying Person has failed within a reasonable time to retain counsel reasonably satisfactory to the Indemnified Person; (iii) the Indemnified Person shall have reasonably concluded that there may be legal defenses available
to it that are different from or in addition to those available to the Indemnifying Person; or (iv) the named parties in any such proceeding (including any impleaded parties) include both the Indemnifying Person and the Indemnified Person and
representation of both parties by the same counsel would be inappropriate due to actual or potential differing interests between them. It is understood and agreed that the Indemnifying Person shall not, in connection with any proceeding or related
proceeding in the same jurisdiction, be liable for the fees and expenses of more than one separate firm (in addition to any local counsel) for all Indemnified Persons, and that all such fees and expenses shall be reimbursed as they are incurred. Any
such separate firm (x) for any Dealer Manager, its affiliates, directors and officers and any control Persons of such Dealer Manager shall be designated in writing by such Dealer Manager, (y) for any Holder, its directors and officers and
any control Persons of such Holder shall be designated in writing by the Majority Holders and (z) in all other cases shall be designated in writing by the Partnership. The Indemnifying Person shall not be liable for any settlement of any
proceeding effected without its written consent, but if settled with such consent or if there be a final judgment for the plaintiff, the Indemnifying Person agrees to indemnify each Indemnified Person from and against any loss or liability by reason
of such settlement or judgment. No Indemnifying Person shall, without the written consent of the Indemnified Person, effect any settlement of any pending or threatened proceeding in respect of which any Indemnified Person is or could have been a
party and indemnification could have been sought hereunder by such Indemnified Person, unless such settlement (A) includes an unconditional release of such Indemnified Person, in form and substance reasonably satisfactory to such Indemnified
Person, from all liability on claims that are the subject matter of such proceeding and (B) does not include any statement as to or any admission of fault, culpability or a failure to act by or on behalf of any Indemnified Person. 

  
 18 

 (d) If the indemnification provided for in paragraphs (a) and (b)] above is unavailable
to an Indemnified Person or insufficient in respect of any losses, claims, damages or liabilities referred to therein, then each Indemnifying Person under such paragraph, in lieu of indemnifying such Indemnified Person thereunder, shall contribute
to the amount paid or payable by such Indemnified Person as a result of such losses, claims, damages or liabilities (i) in such proportion as is appropriate to reflect the relative benefits received by the Partnership from the offering of the
Securities and the Registered Exchange Securities, on the one hand, and by the Holders from receiving Securities or Registered Exchange Securities registered under the Securities Act, on the other hand, or (ii) if the allocation provided by
clause (i) is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) but also the relative fault of the Partnership on the one hand and the Holders on the
other in connection with the statements or omissions that resulted in such losses, claims, damages or liabilities, as well as any other relevant equitable considerations. The relative fault of the Partnership on the one hand and the Holders on the
other shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Partnership or by
the Holders and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. 
 (e) The Partnership and the Holders agree that it would not be just and equitable if contribution pursuant to this Section 5 were determined by pro rata allocation (even if the Holders
were treated as one entity for such purpose) or by any other method of allocation that does not take account of the equitable considerations referred to in paragraph (d) above. The amount paid or payable by an Indemnified Person as a result of
the losses, claims, damages and liabilities referred to in paragraph (d) above shall be deemed to include, subject to the limitations set forth above, any legal or other expenses incurred by such Indemnified Person in connection with any such
action or claim. Notwithstanding the provisions of this Section 5, in no event shall a Holder be required to contribute any amount in excess of the amount by which the total price at which the Securities or Registered Exchange Securities sold
by such Holder exceeds the amount of any damages that such Holder has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No Person guilty of fraudulent misrepresentation (within the
meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any Person who was not guilty of such fraudulent misrepresentation. The Holders’ obligations to contribute pursuant to this Section 5 are several
and not joint. 
 (f) The remedies provided for in this Section 5 are not exclusive and shall not limit any rights or
remedies that may otherwise be available to any Indemnified Person at law or in equity. 

  
 19 

 (g) The indemnity and contribution provisions contained in this Section 5 shall remain
operative and in full force and effect regardless of (i) any termination of this Agreement, (ii) any investigation made by or on behalf of the Dealer Managers or any Holder or any Person controlling any Dealer Manager or any Holder, or by
or on behalf of the Partnership or the officers or directors of or any Person controlling the Partnership, (iii) acceptance of any of the Registered Exchange Securities and (iv) any sale of Registrable Securities pursuant to a Shelf
Registration Statement. 
 6. General. 
 (a) No Inconsistent Agreements. The Partnership represents, warrants and agrees that (i) the rights granted to the Holders hereunder do not in any way conflict with and are not inconsistent
with the rights granted to the holders of any other outstanding securities issued or guaranteed by the Partnership under any other agreement and (ii) the Partnership has not entered into, or on or after the date of this Agreement will not enter
into, any agreement that is inconsistent with the rights granted to the Holders of Registrable Securities in this Agreement or otherwise conflicts with the provisions hereof. 
 (b) Amendments and Waivers. The provisions of this Agreement, including the provisions of this sentence, may not be amended, modified or supplemented, and waivers or consents to departures from the
provisions hereof may not be given unless the Partnership has obtained the written consent of Holders of at least a majority in aggregate principal amount of the outstanding Registrable Securities affected by such amendment, modification,
supplement, waiver or consent; provided that no amendment, modification, supplement, waiver or consent to any departure from the provisions of Section 5 hereof shall be effective as against any Holder of Registrable Securities unless
consented to in writing by such Holder. Any amendments, modifications, supplements, waivers or consents pursuant to this Section 6(b) shall be by a writing executed by each of the parties hereto. 

(c) Notices. All notices and other communications provided for or permitted hereunder shall be made in writing by hand-delivery,
registered first-class mail, telecopier, or any courier guaranteeing overnight delivery (i) if to a Holder, at the most current address given by such Holder to the Partnership by means of a notice given in accordance with the provisions of this
Section 6(c), which address initially is, with respect to the Dealer Managers, the address set forth in the Dealer Manager Agreement; (ii) if to the Partnership, initially at the Partnership’s address set forth in the Dealer Manager
Agreement and thereafter at such other address, notice of which is given in accordance with the provisions of this Section 6(c); and (iii) to such other persons at their respective addresses as provided in the Dealer Manager Agreement and
thereafter at such other address, notice of which is given in accordance with the provisions of this Section 6(c). All such notices and communications shall be deemed to have been duly given: at the time delivered by hand, if personally
delivered; five 

  
 20 

 
Business Days after being deposited in the mail, postage prepaid, if mailed; when receipt is acknowledged, if telecopied; and on the next Business Day if timely delivered to an air courier
guaranteeing overnight delivery. Copies of all such notices, demands or other communications shall be concurrently delivered by the Person giving the same to the Trustee, at the address specified in the Senior Indenture or Subordinated Indenture, as
the case may be. 
 (d) Successors and Assigns. This Agreement shall inure to the benefit of and be binding upon the
successors, assigns and transferees of each of the parties, including, without limitation and without the need for an express assignment, subsequent Holders; provided that nothing herein shall be deemed to permit any assignment, transfer or
other disposition of Registrable Securities in violation of the terms of the Dealer Manager Agreement, the Senior Indenture or the Subordinated Indenture. If any transferee of any Holder shall acquire Registrable Securities in any manner, whether by
operation of law or otherwise, such Registrable Securities shall be held subject to all the terms of this Agreement, and by taking and holding such Registrable Securities such Person shall be conclusively deemed to have agreed to be bound by and to
perform all of the terms and provisions of this Agreement and such Person shall be entitled to receive the benefits hereof. The Dealer Managers (in their capacity as Dealer Managers) shall have no liability or obligation to the Partnership with
respect to any failure by a Holder to comply with, or any breach by any Holder of, any of the obligations of such Holder under this Agreement. 
 (e) Third Party Beneficiaries. Each Holder shall be a third party beneficiary to the agreements made hereunder between the Partnership, on the one hand, and the Dealer Managers, on the other hand,
and shall have the right to enforce such agreements directly to the extent it deems such enforcement necessary or advisable to protect its rights or the rights of other Holders hereunder. 

(f) Counterparts. This Agreement may be executed in any number of counterparts and by the parties hereto in separate counterparts,
each of which when so executed shall be deemed to be an original and all of which taken together shall constitute one and the same agreement. Delivery of an executed counterpart of a signature page to this Agreement by telecopier, facsimile, email
or other electronic transmission (i.e., “pdf” or “tif”) shall be effective as delivery of a manually executed counterpart of this Agreement. 
 (g) Headings. The headings in this Agreement are for convenience of reference only, are not a part of this Agreement and shall not limit or otherwise affect the meaning hereof. 

(h) Governing Law. This Agreement, and any claim, controversy or dispute arising under or related to this Agreement, shall be
governed by and construed in accordance with the laws of the State of New York. 

  
 21 

 (i) Entire Agreement; Severability. This Agreement contains the entire agreement
between the parties relating to the subject matter hereof and supersedes all oral statements and prior writings with respect thereto. If any term, provision, covenant or restriction contained in this Agreement is held by a court of competent
jurisdiction to be invalid, void or unenforceable or against public policy, the remainder of the terms, provisions, covenants and restrictions contained herein shall remain in full force and effect and shall in no way be affected, impaired or
invalidated. The Partnership and the Dealer Managers shall endeavor in good faith negotiations to replace the invalid, void or unenforceable provisions with valid provisions the economic effect of which comes as close as possible to that of the
invalid, void or unenforceable provisions. 

  
 22 

 IN WITNESS WHEREOF, the parties have executed this Agreement as of the date first written
above. 
  

			
	ENERGY TRANSFER PARTNERS, L.P.
		
	 BY:
	 	ENERGY TRANSFER PARTNERS GP, L.P.,
		 	its general partner
		
	 BY:
	 	ENERGY TRANSFER PARTNERS L.L.C.,
		 	its general partner
		
	 By:
	 	/s/ Martin Salinas, Jr.
		 	  

		 	 Name: Martin Salinas, Jr.

		 	 Title: Chief Financial Officer

  
 23 

 Confirmed and accepted as of the date first above written: 

 

			
	J.P. MORGAN SECURITIES LLC
		
	By:	 	/s/ Robert Bottamedi
		 	  

		 	Name: Robert Bottamedi
		 	Title: Vice President
	
	UBS SECURITIES LLC
		
	By:  	 	/s/ Zain Akbari
		 	  

		 	Name: Zain Akbari
		 	Title: Director
		
	By:	 	/s/ Anthony Rogozino
		 	  

		 	Name: Anthony Rogozino
		 	Title: Managing Director

  
 24 

 Schedule 1 
  

			
	 Outstanding SUG Notes
	  	 ETP Securities

	7.60% Senior Notes due 2024	  	7.60% Senior Notes due 2024
		
	8.25% Senior Notes due 2029	  	8.25% Senior Notes due 2029
		
	Floating Rate Junior Subordinated Notes due 2066	  	Floating Rate Junior Subordinated Notes due 2066EX-10.46

 Exhibit 10.46 
 ***Text Omitted and Filed Separately 
 with the Securities and Exchange
Commission 
 Confidential Treatment Requested 
 Under 17 C.F.R. Sections 200.80(b)(4) 
 and 230.406. 

Execution Copy 
 AMENDMENT #5 TO THE PRODUCT DEVELOPMENT AND COMMERCIALIZATION AGREEMENT 

This Amendment (this “Amendment”) is entered into and made effective as of June 6, 2013 (the “Amendment
Date”) by and between Regulus Therapeutics Inc., a Delaware corporation having its principal place of business at 3545 John Hopkins Court, Suite 210, San Diego, CA 92121 USA (“Regulus”) and Glaxo Group Limited, a company
existing under the laws of England and Wales, having its registered office at 980 Great West Road, Brentford, Middlesex TW8 9GS, England (“GSK”). 
 Regulus and GSK are each referred to herein by name or as a “Party” or, collectively, as the “Parties”. 

RECITALS 

WHEREAS, Regulus and GSK are parties to the Product Development and Commercialization Agreement dated 17 April 2008, as
amended by an amendment dated 24 February 2010 (“Amendment No. 1”), a further amendment dated 16 June 2010 (“Amendment No. 2”) and a further amendment dated 30 June 2011 (“Amendment
No. 3”) and a further amendment dated 29 June 2012 (“Amendment No. 4”) (collectively, the “Agreement”). 
 WHEREAS, the Parties added Mir-122 as one of the Collaboration Targets under the Agreement and have collaborated under the Mir-122 Research Program (the “Mir-122 Research Program”)
(Amendment No. 1). 
 WHEREAS, Regulus now wishes to develop [...***...] independently of the Mir-122 Research
Program. 
 NOW, THEREFORE, in consideration of the promises and mutual covenants herein contained, and for other good
and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties, intending to be hereby bound, do hereby agree as follows: 
  

	 	1.	 As of the Amendment Date, [...***...] shall no longer be a Collaboration Compound under the Agreement. Therefore, as of the Amendment Date,
and in each case only with respect to [...***...] and Pro-Drug or other formulations thereof (hereinafter “[...***...]”): 

  

	 	a.	GSK will have no future Program Option under Article 4 of the Agreement; 

  

	 	b.	 GSK will have no further milestone or royalty obligations to Regulus under Article 6 of the Agreement (and no such payments are outstanding as at the

  
 1. 

***Confidential Treatment Requested 

	 	 
Amendment Date), and Regulus will have no Reverse Royalty obligations to GSK under Section 6.7 of the Agreement; 

 

	 	c.	The exclusivity provisions of Sections 7.1 and 7.2 of the Agreement will not apply and Regulus (or a Third Party to whom Regulus has sublicensed its rights) shall be
free to Develop, Manufacture and/or Commercialize [...***...]; 

  

	 	d.	The indemnification obligations of Regulus shall remain in force and effect including those which may arise due to the Commercialization activities by or on behalf of
Regulus under Section 11.2.4 of the Agreement; 

  

	 	e.	For the purposes of this Amendment, “Pro-drug” means any inert component added to [...***...] in order to improve the delivery, bioavailability,
absorption, metabolism or excretion of 
[...***...] in the human body. 

2.        As of the Amendment Date, Regulus shall have no obligation to perform
any further Research or Development activities under the Mir-122 Research Program unless mutually agreed in writing by the Parties, and except as provided in Section 1.4 of Amendment No.1. 

3.        As of the Amendment Date, the last sentence of section 1.4.1 of
Amendment No.1 shall be deleted, so that the rights and obligations set out in Section 1.4 of Amendment No.1 shall continue to apply whether or not the Mir-122 Research Program remains an active Program under the Agreement. Such rights and
obligations shall survive any intervening termination or expiration of the Research Collaboration Term for the Mir-122 Research Program which may otherwise occur under the terms of the Agreement, and exercise of such rights by GSK at any time after
such termination or expiration shall serve to re-instate the Research Collaboration Term (as necessary) for the Mir-122 Research Program. 
 4.        For the avoidance of doubt, Mir-122 remains a Collaboration Target and this Amendment #5 does not affect the Parties’ rights and obligations under
the February 24, 2010 Exclusive License and Non-Exclusive Option agreement between the Parties. 

5.        Regulus shall issue a press release concurrently with any required
governmental disclosure relating to the matters set out in this Amendment and shall comply with the terms of the Agreement in relation to any such disclosure. 
 6. General  
  

	 	6.1	 Capitalized terms not otherwise defined herein will have the meanings given in the Agreement. Except as otherwise expressly amended by this
Amendment, the Agreement shall remain in full force and effect in accordance with its terms. 

  

	 	6.2	 Each Party shall execute, acknowledge and deliver such further instruments, and do all such other acts, as may be necessary or appropriate in order
to carry out the expressly stated purposes and the clear intent of this Amendment. 

  
 2. 

***Confidential Treatment Requested 

	 	6.3	 This Amendment may be signed in counterparts, each and every one of which shall be deemed an original, notwithstanding variations in format or file
designation which may result from the electronic transmission, storage and printing of copies of this Amendment from separate computers or printers. Facsimile signatures and signatures transmitted via PDF shall be treated as original signatures.

 [SIGNATURES APPEAR ON NEXT PAGE]

  
 3. 

 IN WITNESS WHEREOF, the Parties have caused this Amendment to be executed by their
duly authorized representatives as of the Amendment Date. 
  

					
	 /s/ Kleanthis G. Xanthopoulos
	 		 	 /s/ Paul Williamson

			
	 For and on behalf of
	 		 	 For and on behalf of

			
	 REGULUS THERAPEUTICS INC.
	 		 	 GLAXO GROUP LIMITED

  
 4. 

 EXHIBIT A 

[...***...] 
  

			
	 [...***...]	 	
[...***...]

	 [...***...]	 	     [...***...]

	 [...***...]

 

  
 5. 

***Confidential Treatment Requested

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