SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE TO
    (RULE 14D-100) TENDER OFFER STATEMENT UNDER SECTION 14(D)(1) OR 13(E)(1)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
                               (AMENDMENT NO. 3)

                                  DYNEGY INC.
                       (NAME OF SUBJECT COMPANY (ISSUER))

                               IEH MERGER SUB LLC
                        ICAHN ENTERPRISES HOLDINGS L.P.
                              IEP MERGER SUB INC.
                               ICAHN PARTNERS LP
                         ICAHN PARTNERS MASTER FUND LP
                        ICAHN PARTNERS MASTER FUND II LP
                       ICAHN PARTNERS MASTER FUND III LP
                         HIGH RIVER LIMITED PARTNERSHIP
                             HOPPER INVESTMENTS LLC
                                 BARBERRY CORP.
                                ICAHN ONSHORE LP
                               ICAHN OFFSHORE LP
                                ICAHN CAPITAL LP
                                   IPH GP LLC
                             ICAHN ENTERPRISES L.P.
                          ICAHN ENTERPRISES G.P. INC.
                                 BECKTON CORP.
                                 CARL C. ICAHN
                           (NAMES OF FILING PERSONS)*

                         COMMON STOCK, PAR VALUE $0.01
                         (TITLE OF CLASS OF SECURITIES)

                                   26817G300
                     (CUSIP NUMBER OF CLASS OF SECURITIES)

                            KEITH L. SCHAITKIN, ESQ.
                             DEPUTY GENERAL COUNSEL
                                ICAHN CAPITAL LP
                          767 FIFTH AVENUE, 47TH FLOOR
                            NEW YORK, NEW YORK 10153
                                 (212) 702-4380
  (NAME, ADDRESS AND TELEPHONE NUMBER OF PERSON AUTHORIZED TO RECEIVE NOTICES
                AND COMMUNICATIONS ON BEHALF OF FILING PERSONS)

                           CALCULATION OF FILING FEE

TRANSACTION VALUATION:                                     AMOUNT OF FILING FEE:
$665,350,532*                                                        $47,440  **

*    Calculated  solely  for  purposes  of  determining  the  filing  fee.  The
     calculation  assumes the purchase of all 120,972,824 issued and outstanding
     shares  of common stock, par value $0.01 per share, Dynegy Inc. has advised
     IEH  Merger  Sub  LLC  were outstanding as of December 9, 2010 at the offer
     price  of  $5.50  per  share.

**   Calculated  in  accordance with Rule 0-11 of the Securities Exchange Act of
     1934,  as  amended,  determined  based  upon  multiplying 0.00007130 by the
     transaction  valuation  of  $665,350,532.

/x/  Check  the  box  if  any  part  of  the  fee  is offset as provided by Rule
     0-11(a)(2)  and  identify  the  filing  with  which  the offsetting fee was
     previously  paid.  Identify  the  previous filing by registration statement
     number,  or  the  Form  or  Schedule  and  the  date  of  its  filing.


Amount previously paid: $47,440                 Filing Party:  Icahn Enterprises
                                                               Holdings L.P.
Form or registration no.: Schedule TO           Date Filed:  December 22, 2010

/ /  Check the box if the filing relates solely to preliminary communications
     made  before  the  commencement  of  a  tender  offer.

Check  the  appropriate  boxes  below to designate any transactions to which the
statement  relates:

/x/ third party tender offer subject to Rule 14d-1
/ / going-private transaction subject to Rule 13e-3
/ / issuer tender offer subject to Rule 13e-4
/x/ amendment to Schedule 13D under Rule 13d-2

Check the following box if the filing is a final amendment reporting the results
of the tender offer:  / /



     *  Introductory  Note: Pursuant to the Merger Agreement (as defined in, and
filed  with,  the  Schedule  TO  (as  defined  below)),  IEH  Merger Sub LLC was
obligated  to  commence  the  Offer  (as  defined  below)  by December 22, 2010.
Pursuant  to  the  Guarantee  (as  defined in, and filed with, the Schedule TO),
Icahn  Enterprises  Holdings  L.P.  agreed  to  absolutely,  irrevocably  and
unconditionally, guarantee to Dynegy Inc. the full and timely performance by IEH
Merger  Sub LLC of its payment and other obligations under the Merger Agreement,
including  its  obligation to commence and consummate the Offer. Both IEH Merger
Sub  LLC  and Icahn Enterprises Holdings L.P. are co-bidders for all purposes in
the  Offer.

     This  Amendment  No. 3 amends and supplements the Tender Offer Statement on
Schedule TO, dated December 22, 2010 (the "Original Schedule TO"), as amended by
the  Amendment  No.  1  to  the Schedule TO, dated December 28, 2010 (the "First
Amendment")  and  as  further amended by the Amendment No. 2 to the Schedule TO,
dated  January  6,  2011  (the  "Second  Amendment", and together with the First
Amendment  and  the  Original  Schedule  TO,  the "Schedule TO") relating to the
tender  offer  by  IEH Merger Sub LLC, a Delaware limited liability company (the
"IEH  Merger  Sub")  and  Icahn  Enterprises  Holdings  L.P., a Delaware limited
partnership  ("IEH",  and  together  with  IEH  Merger  Sub,  the "Offeror"), to
purchase  for  cash  all of the issued and outstanding shares of common stock of
Dynegy  Inc., including the associated rights issued pursuant to the Stockholder
Protection  Rights  Agreement,  dated as of November 22, 2010, and as amended on
December  15,  2010,  between  the  Company and Mellon Investor Services LLC, as
Rights  Agent,  that are issued and outstanding (such shares of common stock and
such  rights  collectively, the "Shares") at a price of $5.50 per Share, without
interest and less any required withholding taxes, if any. Pursuant to the Merger
Agreement, IEH Merger Sub agreed to commence a tender offer to purchase for cash
all  outstanding  Shares.  Pursuant  to the Guarantee, IEH agreed to absolutely,
irrevocably  and  unconditionally,  guarantee to Dynegy Inc. the full and timely
performance  by  IEH  Merger  Sub of its payment and other obligations under the
Merger Agreement, including its obligation to commence and consummate the Offer.
Both  IEH  Merger  Sub  and  IEH  are  co-bidders for all purposes in the Offer.

     The  Offer is subject to the terms and conditions set forth in the Offer to
Purchase,  dated  December  22,  2010  (the  "Offer  to Purchase"). The Offer to
Purchase,  the  related  Letter of Transmittal (the "Letter of Transmittal") and
Notice  of  Guaranteed Delivery, copies of which are attached hereto as Exhibits
(a)(1)(i),  (a)(1)(ii)  and  (a)(1)(iii),  respectively, constitute the "Offer".

     As  permitted  by General Instruction F to Schedule TO, the information set
forth  in the entire Offer to Purchase, the Letter of Transmittal and the Notice
of  Guaranteed  Delivery,  including  all  appendices,  schedules,  exhibits and
annexes  thereto,  is  hereby expressly incorporated by reference in response to
Items  1  through  11 of this Schedule TO and is supplemented by the information
specifically  provided  herein.

     As  permitted  by General Instruction G to Schedule TO, this Schedule TO is
also  an  amendment  to the joint statement on Schedule 13D filed on October 12,
2010  by  IEH,  Icahn Partners LP, a limited partnership governed by the laws of
Delaware,  Icahn  Partners Master Fund LP, a limited partnership governed by the
laws  of  the  Cayman  Islands,  Icahn  Partners  Master  Fund  II LP, a limited
partnership  governed  by  the laws of the Cayman Islands, Icahn Partners Master
Fund  III  LP, a limited partnership governed by the laws of the Cayman Islands,
High  River  Limited  Partnership, a limited partnership governed by the laws of
Delaware,  Hopper  Investments  LLC, a limited liability company governed by the
laws  of  Delaware,  Barberry  Corp.,  a  corporation  governed  by  the laws of
Delaware,  Icahn  Onshore  LP,  a  limited  partnership  governed by the laws of
Delaware,  Icahn  Offshore  LP,  a  limited  partnership governed by the laws of
Delaware,  Icahn  Capital  LP,  a  limited  partnership  governed by the laws of
Delaware,  IPH  GP  LLC,  a  limited  liability  company governed by the laws of
Delaware, Icahn Enterprises Holdings L.P., a limited partnership governed by the
laws  of  Delaware,  Icahn  Enterprises G.P. Inc., a corporation governed by the
laws of Delaware, Beckton Corp., a corporation governed by the laws of Delaware,
and  Carl  C.  Icahn  (collectively,  the  "Icahn  Entities").

ITEM 11. ADDITIONAL INFORMATION.

     Item  11  of  the  Schedule  TO,  and  the Offer to Purchase, to the extent
incorporated  by  reference  therein, are hereby amended and supplemented as set
forth  below.

     The  second  paragraph in the subsection titled "Regulatory" in Section16 -
"Certain  Legal Matters" of the Offer to Purchase is amended and supplemented to
include  the  following  new  sentence  at  the  end  of  such  paragraph:

     "At  the January 20, 2011 Session of the New York Public Service Commission
("NYPSC"),  NYPSC  granted  authorization  for  the proposed transaction between
Dynegy and an affiliate of Icahn Enterprises LP. A written ruling to that effect
is  expected  to  be  issued  by  NYPSC  in  due  course."



                                   SIGNATURES

     After  due  inquiry  and  to the best of my knowledge and belief, I certify
that  the information set forth in this statement is true, complete and correct.


                                               ICAHN PARTNERS LP


                                               By:  /s/ Edward E. Mattner
                                                    ---------------------
                                                    Name:  Edward E. Mattner
                                                    Title: Authorized Signatory



                                               ICAHN PARTNERS MASTER FUND LP


                                               By:  /s/ Edward E. Mattner
                                                    ---------------------
                                                    Name:  Edward E. Mattner
                                                    Title: Authorized Signatory


                                               ICAHN PARTNERS MASTER FUND II LP


                                               By:  /s/ Edward E. Mattner
                                                    ---------------------
                                                    Name:  Edward E. Mattner
                                                    Title: Authorized Signatory


                                               ICAHN PARTNERS MASTER FUND III LP

                                               By:  /s/ Edward E. Mattner
                                                    ---------------------
                                                    Name:  Edward E. Mattner
                                                    Title: Authorized Signatory


                                               HIGH RIVER LIMITED PARTNERSHIP

                                               BY:  HOPPER INVESTMENTS LLC, ITS
                                                    GENERAL PARTNER

                                               BY:  BARBERRY CORP., ITS SOLE
                                                    MEMBER


                                               By:  /s/ Edward E. Mattner
                                                    ---------------------
                                                    Name:  Edward E. Mattner
                                                    Title: Authorized Signatory



                                              HOPPER INVESTMENTS LLC
                                              BY:  BARBERRY CORP., ITS SOLE
                                                   MEMBER


                                               By:  /s/ Edward E. Mattner
                                                    ---------------------
                                                    Name:  Edward E. Mattner
                                                    Title: Authorized Signatory



                                              BARBERRY CORP.


                                               By:  /s/ Edward E. Mattner
                                                    ---------------------
                                                    Name:  Edward E. Mattner
                                                    Title: Authorized Signatory



                                              ICAHN ONSHORE LP


                                               By:  /s/ Edward E. Mattner
                                                    ---------------------
                                                    Name:  Edward E. Mattner
                                                    Title: Authorized Signatory


                                              ICAHN OFFSHORE LP


                                               By:  /s/ Edward E. Mattner
                                                    ---------------------
                                                    Name:  Edward E. Mattner
                                                    Title: Authorized Signatory



                                              ICAHN CAPITAL LP


                                               By:  /s/ Edward E. Mattner
                                                    ---------------------
                                                    Name:  Edward E. Mattner
                                                    Title: Authorized Signatory




                                              BECKTON CORP.


                                               By:  /s/ Edward E. Mattner
                                                    ---------------------
                                                    Name:  Edward E. Mattner
                                                    Title: Authorized Signatory



                                              IPH GP LLC


                                               By:  /s/ Edward E. Mattner
                                                    ---------------------
                                                    Name:  Edward E. Mattner
                                                    Title: Authorized Signatory



                                              ICAHN ENTERPRISES HOLDINGS L.P.

                                              BY:  ICAHN ENTERPRISES G.P. INC.,
                                                   ITS GENERAL PARTNER

                                              By: /s/ Dominick Ragone
                                                  -------------------
                                                  Name:  Dominick Ragone
                                                  Title: Chief Financial Officer



                                              IEH MERGER SUB LLC
                                              BY:  ICAHN ENTERPRISES HOLDINGS
                                                   L.P., ITS SOLE MEMBER
                                              BY:  ICAHN ENTERPRISES G.P. INC.,
                                                   ITS GENERAL PARTNER

                                              By: /s/ Dominick Ragone
                                                  -------------------
                                                  Name:  Dominick Ragone
                                                  Title: Chief Financial Officer


                                              IEP MERGER SUB INC.

                                              By: /s/ Dominick Ragone
                                                  -------------------
                                                  Name:  Dominick Ragone
                                                  Title: Chief Financial Officer



                                              /s/ Carl C. Icahn
                                              -----------------
                                              Name:  Carl C. Icahn

Date: January 20, 2011



                                 EXHIBIT INDEX


EXHIBIT NO.        DESCRIPTION
-----------        -----------
(a)(1)(i)          Offer to Purchase, dated December 22, 2010*

(a)(1)(ii)         Letter of Transmittal (including Guidelines for Certification
                   of Taxpayer Identification Number)*

(a)(1)(iii)        Notice of Guaranteed Delivery*

(a)(1)(iv)         Letter to Brokers, Dealers, Commercial Banks, Trust Companies
                   and Other Nominees*

(a)(1)(v)          Letter to Clients*

(a)(5)(i)          Summary Advertisement as published in the New York Times, by
                   the Offeror, on December 22, 2010*

(a)(5)(ii)         Joint Press Release of the Offeror and Dynegy Inc., dated
                   December 15, 2010 (incorporated by reference to Exhibit 1.1
                   to the Schedule TO-C filed by the Offeror with the Securities
                   and Exchange Commission on December 15, 2010)*

(b)                None.

(c)                None.

(d)(1)             Agreement and Plan of Merger, dated as of December 15, 2010,
                   among Dynegy Inc., IEH Merger Sub LLC and IEP Merger Sub Inc.
                   (incorporated by reference to Exhibit 2.1 to the Form 8-K
                   filed by Icahn Enterprises L.P. with the Securities and
                   Exchange Commission on December 17, 2010)*

(d)(2)             Support Agreement, dated as of December 15, 2010,
                   (incorporated by reference to Exhibit 1.2 to the Schedule
                   TO-C filed by the Offeror with the Securities and Exchange
                   Commission on December 15, 2010)*

(d)(3)             Guarantee, dated as of December 15, 2010*

(g)                None.

(h)                None.

__________________
*  Previously Filed