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                                                                      EXHIBIT 21
                        K N ENERGY, INC. AND SUBSIDIARIES
                         SUBSIDIARIES OF THE REGISTRANT


<TABLE>
<CAPTION>

NAME OF COMPANY                                                                STATE OF INCORPORATION
---------------                                                                ----------------------
<S>                                                                              <C>    
AOG Gas Transmission Company, L.P. ..............................................     Texas
AOG Holdings, Inc. ..............................................................     Delaware
American Gas Storage, L.P. ......................................................     Texas
American Gathering, L.P. ........................................................     Texas
American Oil & Gas Corporation ..................................................     Delaware
American Pipeline Company .......................................................     Delaware
American Processing, L.P. .......................................................     Texas
Blue Moon Holdings, LLC* ........................................................     Delaware
Caprock Pipeline Company ........................................................     Delaware
Compressor Pump & Engine Machine, Inc. ..........................................     Wyoming
Coyote Gas Treating Limited Liability Company* ..................................     Colorado
en*able, LLC* ...................................................................     Delaware
Energy Mountain Services.........................................................     Colorado
Evolve Solutions, L.L.C.*........................................................     Delaware
FR Holdings, L.L.C.*.............................................................     Colorado
Gas Natural del Noroeste, S.A. de C.V ...........................................     Mexico
Interenergy Corporation..........................................................     Colorado
Interenergy Distribution Corporation.............................................     Colorado
Interenergy Resources Corporation................................................     Colorado
Interenergy Resources, L.P.......................................................     Texas
Interenergy Resources Corporation of New Mexico..................................     New Mexico
KNFS Investments ................................................................     Colorado
K N Cogeneration ................................................................     Colorado
K N Energy Foundation*...........................................................     Colorado
K N Energy Igasamex, Inc.........................................................     Delaware
K N Energy International, Inc. ..................................................     Delaware
K N Energy de Mexico, S.A. de C.V ...............................................     Mexico
</TABLE>


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<TABLE>
<S>                                                                                 <C>    
K N Field Services, Inc. ........................................................     Colorado
K N Finance Company .............................................................     Colorado
K N Gas Gathering, Inc. .........................................................     Colorado
K N Gas Supply Services, Inc. ...................................................     Colorado
K N Interstate Gas Transmission Co. .............................................     Colorado
K N Management Corp. ............................................................     Delaware
K N Marketing, L.P. .............................................................     Texas
K N Natural Gas, Inc. ...........................................................     Colorado
K N Power Company ...............................................................     Colorado
K N Processing, Inc. ............................................................     Delaware
K N Services, Inc. ..............................................................     Colorado
K N Telecommunications, Inc......................................................     Colorado
K N Thermo Acquisition, Inc......................................................     Colorado
K N Thermo, LLC .................................................................     Colorado
K N Trading, Inc. ...............................................................     Delaware
K N TransColorado, Inc. .........................................................     Colorado
K N Wattenberg Transmission Limited Liability Company ...........................     Colorado
K N Weatherwise LLC*.............................................................     Delaware
K N WesTex Gas Service Company ..................................................     Texas
Lake Power, L.L.C ...............................................................     Delaware
mc(2) Inc. ......................................................................     Delaware
MCN Gulf Processing Corp. .......................................................     Delaware
MCN Properties Corp. ............................................................     Delaware
MidCon Corp. ....................................................................     Delaware
MidCon Dehydration Corp. ........................................................     Delaware
MidCon Development Corp. ........................................................     Delaware
MidCon Exploration Company ......................................................     Illinois
MidCon Gas Natural de Mexico, S.A. de C.V .......................................     Mexico
MidCon Gas Products Corp. .......................................................     Delaware
MidCon Gas Products of New Mexico Corp. .........................................     Delaware
MidCon Gas Services Corp. .......................................................     Delaware
MidCon Marketing Corp. ..........................................................     Delaware
</TABLE>


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<TABLE>
<S>                                                                               <C>    
MidCon Mexico Pipeline Corp. ....................................................     Delaware
MidCon NGL Corp. ................................................................     Delaware
MidCon Power Services Corp.......................................................     Delaware
MidCon Texas Gas Services Corp. .................................................     Delaware
MidCon Texas Pipeline Operator, Inc. ............................................     Delaware
NALOCO, Inc. ....................................................................     Delaware
NATOCO, Inc. ....................................................................     Delaware
Natural Gas Pipeline Company of America .........................................     Delaware
NGPL-Canyon Compression Co. .....................................................     Delaware
NGPL Offshore Company ...........................................................     Delaware
NGPL-Overthrust Inc. ............................................................     Delaware
NGPL-Trailblazer Inc. ...........................................................     Delaware
Northern Gas Company ............................................................     Wyoming
Occidental Energy Development Corp. .............................................     Delaware
Orcom Solutions, Inc.* ..........................................................     Delaware
Palo Duro Pipeline Company, Inc. ................................................     Delaware
Panola/Rusk Gatherers ...........................................................     Texas
Red River Pipeline, L.P. ........................................................     Texas
Red Rock Energy, LLC ............................................................     Delaware
Rocky Mountain Natural Gas Company ..............................................     Colorado
Slurco Corporation ..............................................................     Colorado
TCP Gathering Co. ...............................................................     Colorado
Temple & Petty Construction Co., L.L.C...........................................     Colorado
Thermo Greeley L.L.C ............................................................     Colorado
Thermo Salt Company, LLC.........................................................     Colorado
Thunder Creek Gas Services, L.L.C.*..............................................     Wyoming
Valley Operating, Inc............................................................     Colorado
Westar Transmission Company .....................................................     Delaware
Wildhorse Energy Partners, LLC ..................................................     Delaware
</TABLE>


All of the subsidiaries named above are included in the consolidated financial
statements of the Registrant included herein, except those marked with an
asterisk.