SC 13G for Inergy, L.P.


                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934
                               (Amendment _____)*

                                  Inergy, L.P.
--------------------------------------------------------------------------------
                                (Name of Issuer)

                                  Common Units
--------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                    456615103
--------------------------------------------------------------------------------
                                 (CUSIP Number)

                                December 31, 2004
--------------------------------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

         [X]      Rule 13d-1(b)
         [ ]      Rule 13d-1(c)
         [ ]      Rule 13d-1(d)

*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for any  subsequent  amendment  containing  information  which  would  alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 (the "Act") or otherwise  subject to the liabilities of that section of the
Act, but shall be subject to all other  provisions of the Act (however,  see the
Notes).





-------------------------
CUSIP No.   456615103   -
-------------------------


-------------------- -----------------------------------------------------------

         1           NAME OF REPORTING PERSON
                     I.R.S. IDENTIFICATION NO. OF ABOVE PERSON  (entities only)

                     Tortoise Capital Advisors LLC (22-3875939)
-------------------- -----------------------------------------------------------

         2           CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                     (a) [    ]

                     (b) [ X  ]

                     (See Instructions)
-------------------- -----------------------------------------------------------

         3           SEC USE ONLY
-------------------- -----------------------------------------------------------

         4           CITIZENSHIP OR PLACE OF ORGANIZATION

                     Delaware
-------------------- ------------- ---------------------------------------------

                          5        SOLE VOTING POWER
 NUMBER OF SHARES
BENEFICIALLY OWNED                 105,683
 BY EACH REPORTING
      PERSON
       WITH:
                     ------------- ---------------------------------------------

                          6        SHARED VOTING POWER

                                   1,732,220 (see Item 4)
                     ------------- ---------------------------------------------

                          7        SOLE DISPOSITIVE POWER

                                   105,683
                     ------------- ---------------------------------------------

                          8        SHARED DISPOSITIVE POWER

                                   1,732,220 (see Item 4)
-------------------- -----------------------------------------------------------

         9           AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                     PERSON

                     1,837,903 (see Item 4)
-------------------- -----------------------------------------------------------

        10           CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
                     SHARES (See Instructions)

                      Not Applicable
-------------------- -----------------------------------------------------------

        11           PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                     8.3%
-------------------- -----------------------------------------------------------

        12           TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

                     IA
--------------------------------------------------------------------------------





-------------------------
CUSIP No.   456615103   -
-------------------------


-------------------- -----------------------------------------------------------

         1           NAME OF REPORTING PERSON
                     I.R.S. IDENTIFICATION NO. OF ABOVE PERSON  (entities only)

                     Tortoise Energy Infrastructure Corporation (20-0384222)
-------------------- -----------------------------------------------------------

         2           CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
                     (a) [    ]

                     (b) [ X  ]

                     (See Instructions)
-------------------- -----------------------------------------------------------

         3           SEC USE ONLY
-------------------- -----------------------------------------------------------

         4           CITIZENSHIP OR PLACE OF ORGANIZATION

                     Maryland
-------------------- ------------- ---------------------------------------------

                          5        SOLE VOTING POWER
 NUMBER OF SHARES
BENEFICIALLY OWNED                 0
 BY EACH REPORTING
      PERSON
       WITH:
                     ------------- ---------------------------------------------

                          6        SHARED VOTING POWER

                                   1,732,220 (see Item 4)
                     ------------- ---------------------------------------------

                          7        SOLE DISPOSITIVE POWER

                                   0
                     ------------- ---------------------------------------------

                          8        SHARED DISPOSITIVE POWER

                                   1,732,220 (see Item 4)
-------------------- -----------------------------------------------------------

         9           AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
                     PERSON

                     1,732,220 (see Item 4)
-------------------- -----------------------------------------------------------

        10           CHECK IF THE AGGREGATE AMOUNT IN ROW 9 EXCLUDES CERTAIN
                     SHARES (See Instructions)

                     Not Applicable
-------------------- -----------------------------------------------------------

        11           PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

                     7.9%
-------------------- -----------------------------------------------------------

        12           TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)

                     IV
-------------------- -----------------------------------------------------------





Item 1(a)  Name of Issuer:

     Inergy L.P.

Item 1(b)  Address of Issuer's Principal Executive Offices:

     2 Brush Creek Boulevard, Suite 200, Kansas City, Missouri 64112

Item 2(a)  Name of Persons Filing:

     This 13G is being  jointly  filed  by  Tortoise  Capital  Advisors  LLC,  a
Delaware limited liability company ("TCA"),  and Tortoise Energy  Infrastructure
Corporation, a Maryland corporation ("TYG").

     TCA and TYG have entered into an  Agreement  Regarding  Joint Filing of 13G
dated  February  11, 2005 (the  "Agreement")  pursuant to which TCA and TYG have
agreed  to file this 13G  jointly  in  accordance  with the  provisions  of Rule
13d-1(k)(1)  of the Securities  Exchange Act of 1940, as amended (the "Act').  A
copy of the Agreement is attached hereto as Exhibit A.

Item 2(b)  Address of Principal Business Office or, if None, Residence:

     The principal  business  address of both TCA and TYG is 10801 Mastin Blvd.,
Suite 222, Overland Park, Kansas 66210.

Item 2(c)  Citizenship:

     TCA  is a  Delaware  limited  liability  company  and  TYG  is  a  Maryland
corporation.

Item 2(d)  Title of Class of Securities:

     Common Units

Item 2(e)  CUSIP Number:

     456615103

Item 3  The Reporting Person is:

     TCA is an investment adviser in accordance with ss.  240.13d-1(b)(1)(ii)(E)
and TYG is an investment  company  registered  under Section 8 of the Investment
Company Act of 1940 (15 U.S.C. 80a-8).

Item 4  Ownership:

     TCA acts as an investment  advisor to TYG, a closed-end  investment company
registered  under the Act.  TCA, by virtue of an Investment  Advisory  Agreement
with TYG, has all investment and voting power over securities owned of record by
TYG. However,  despite its delegation of investment and voting power to TCA, TYG
may be deemed to be the  beneficial  owner  under Rule 13d-3 of the Act,  of the
securities it owns of record because it has the right to acquire  investment and
voting power through termination of the Investment Advisory Agreement. Thus, TCA
and TYG have  reported that they share voting power and  dispositive  power over
the securities owned of record by TYG. TCA also acts as an investment advisor to
certain managed accounts.  Under contractual  agreements with individual account
holders,  TCA,  with  respect to the  securities  held in the managed  accounts,
shares  investment  and voting power with certain  account  holders,  and has no
voting power but shares investment power with certain other account holders. TCA
may be deemed the beneficial  owner of the securities  covered by this statement
under Rule 13d-3 of the Act.  None of the  securities  listed below are owned of
record by TCA, and TCA disclaims any beneficial interest in such shares.

A.   Tortoise Capital Advisors LLC

     (a)  Amount beneficially owned: 1,837,903

     (b)  Percent of class: 8.3%

     (c)  Number of shares as to which the person has:

          (i)  Sole power to vote or to direct the vote: 105,683

          (ii) Shared power to vote or direct the vote: 1,732,220

          (iii) Sole power to dispose or to direct the disposition of: 105,683

          (iv) Shared  power  to  dispose  or  to  direct  the  disposition  of:
               1,732,220

B.   Tortoise Energy Infrastructure Corporation

     (a)  Amount beneficially owned: 1,732,220

     (b)  Percent of class: 7.9%

     (c)  Number of shares as to which the person has:

          (i)  Sole power to vote or to direct the vote: 0

          (ii) Shared power to vote or direct the vote: 1,732,220

          (iii) Sole power to dispose or to direct the disposition of: 0

          (iv) Shared  power  to  dispose  or  to  direct  the  disposition  of:
               1,732,220

Item 5  Ownership of Five Percent or Less of a Class:

     Not Applicable

Item 6  Ownership of More than Five Percent on Behalf of Another Person:

     Not Applicable

Item 7  Identification and Classification of the Subsidiary Which Acquired the
        Security Being Reported on By the Parent Holding Company:

     Not Applicable

Item 8  Identification and Classification of Members of the Group:

     Not Applicable

Item 9  Notice of Dissolution of Group:

     Not Applicable

Item 10  Certification:

     By signing  below I certify  that,  to the best of my knowledge and belief,
the  securities  referred  to above were not  acquired  and are not held for the
purpose of or with the effect of  changing  or  influencing  the  control of the
issuer of the  securities  and were not acquired and are not held in  connection
with or as a participant in any transaction having that purpose or effect.

                                    SIGNATURE

     After  reasonable  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.

Dated:   February 11, 2005

                                      Tortoise Capital Advisors LLC


                                      By:     /s/ Terry Matlack
                                         ---------------------------------------
                                      Title:  Managing Director
                                            ------------------------------------


                                      Tortoise Energy Infrastructure Corporation


                                      By:     /s/ Terry Matlack
                                         ---------------------------------------
                                      Title:  CFO
                                            ------------------------------------



                                                                       Exhibit A

                  AGREEMENT REGARDING THE JOINT FILING OF SCHEDULE 13G

The undersigned hereby agree as follows:

     (i)  Each of them is individually eligible to use the Schedule 13G to which
this  Exhibit is attached,  and such  Schedule 13G is filed on behalf of each of
them; and

     (ii) Each of them is responsible for the timely filing of such Schedule 13G
and any  amendments  thereto,  and  for the  completeness  and  accuracy  of the
information  concerning  such  person  contained  therein;  but  none of them is
responsible for the  completeness or accuracy of the information  concerning the
other  persons  making the filing,  unless  such  person  knows or has reason to
believe that such information is inaccurate.

Dated:   February 11, 2005

                                      Tortoise Capital Advisors LLC


                                      By:     /s/ David J. Schulte
                                         ---------------------------------------
                                      Title:  Managing Director
                                            ------------------------------------


                                      Tortoise Energy Infrastructure Corporation


                                      By:     /s/ David J. Schulte
                                         ---------------------------------------
                                      Title:  CEO and President
                                            ------------------------------------