Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  CHEVRON CORP
 2. Date of Event Requiring Statement (Month/Day/Year)
04/02/2007		 3. Issuer Name and Ticker or Trading Symbol
DYNEGY INC /IL/ [DYN]
(Last)
(First)
(Middle)
6001 BOLLINGER CANYON ROAD		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

SAN RAMON, CA 94583		 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Class A Common Stock, par value $0.01 per share 96,891,014
I
Securities held directly by Chevron U.S.A. Inc., an indirectly owned subsidiary of Chevron Corp. (1)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
CHEVRON CORP
6001 BOLLINGER CANYON ROAD
SAN RAMON, CA 94583		     X    
CHEVRON USA INC
6001 BOLLINGER CANYON ROAD
SAN RAMON, CA 94583		     X    
Chevron Investments Inc.
6001 BOLLINGER CANYON ROAD
SAN RAMON, CA 94583		     X    
Chevron U.S.A. Holdings Inc.
6001 BOLLINGER CANYON ROAD
SAN RAMON, CA 94583		     X    
TEXACO INC
6001 BOLLINGER CANYON ROAD
SAN RAMON, CA 94583		     X    

Signatures

CHEVRON CORPORATION By: /s/ Kari H. Endries, Assistant Secretary 04/10/2007
**Signature of Reporting Person Date
CHEVRON U.S.A. INC. By: /s/ Kari H. Endries, Vice President and Secretary 04/10/2007
**Signature of Reporting Person Date
CHEVRON INVESTMENTS INC. By: /s/ Kari H. Endries, President 04/10/2007
**Signature of Reporting Person Date
CHEVRON U.S.A. HOLDINGS INC. By: /s/ Kari H. Endries, Vice President and Secretary 04/10/2007
**Signature of Reporting Person Date
TEXACO INC. By: /s/ Kari H. Endries, President 04/10/2007
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Each of Chevron U.S.A. Holdings Inc., Texaco Inc., Chevron Investments Inc. and Chevron Corporation may be deemed to be a beneficial owner of the securities held by Chevron U.S.A. Inc. by virtue of its direct or indirect ownership interest in Chevron U.S.A. Inc.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.