As filed with the Securities and Exchange Commission on February 10, 2011

Registration No. 333-         

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM S-1

REGISTRATION STATEMENT

UNDER THE SECURITIES ACT OF 1933

Kinder Morgan, Inc.

(converted from a
limited liability company named Kinder Morgan Holdco LLC)

(Exact Name of Registrant as Specified in its Charter)

Copies to:

Approximate date of commencement of proposed sale to the public:  As soon as practicable after this Registration Statement becomes effective.

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, check the following box.    o

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.  x Registration No. 333-170773

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.    o

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.    o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company:

CALCULATION OF REGISTRATION FEE

(1)   Includes shares subject to an option to purchase additional shares granted to the underwriters.

(2)   Estimated solely for the purpose of calculating the registration fee in accordance with Rule 457(a) of the Securities Act of 1933.

This Registration Statement shall become effective upon filing with the Commission in accordance with Rule 462(b) under the Securities Act of 1933, as amended.

EXPLANATORY NOTE

This Registration Statement is being filed with respect to the registration of additional shares of Class P common stock, $0.01 par value per share, of Kinder Morgan, Inc., a Delaware corporation (the “Registrant”), pursuant to General Instruction V of Form S-1 and Rule 462(b) under the Securities Act of 1933, as amended.  This Registration Statement relates to the Registrant’s Registration Statement on Form S-1 (File No. 333-170773) declared effective by the Securities and Exchange Commission on February 10, 2011 (the “Original Registration Statement”).  The contents of the Original Registration Statement are incorporated by reference into, and shall be deemed a part of, this Registration Statement.  The required opinions and consents are listed on an Exhibit Index attached hereto and filed herewith.

PART II

INFORMATION NOT REQUIRED IN PROSPECTUS

Item 16.   Exhibits and Financial Statement Schedules.

All exhibits filed with or incorporated by reference in the Original Registration Statement are incorporated by reference into, and shall be deemed to be a part of, this Registration Statement, except for the following which are filed herewith.

(a)          Exhibits.  The following exhibits are filed as part of this Registration Statement.

(b)   Financial Statement Schedules.  Financial statement schedules are omitted because they are not required or the required information is shown in the consolidated financial statements or the notes thereto included in the prospectus that forms a part of the Original Registration Statement.

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SIGNATURES

Pursuant to the requirements of the Securities Act, the registrant has duly caused this registration statement, or amendment thereto, to be signed on its behalf by the undersigned, thereunto duly authorized, in Houston, Texas on February 10, 2011.

Pursuant to the requirements of the Securities Act, this registration statement, or amendment thereto, has been signed by the following persons in the capacities indicated on February 10, 2011.

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EXHIBIT INDEX

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