Duff & Phelps Investment Management

Duff & Phelps Investment Management as of Dec. 31, 2012

Portfolio Holdings for Duff & Phelps Investment Management

Duff & Phelps Investment Management holds 0 positions in its portfolio as reported in the December 2012 quarterly 13F filing

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                                                          FORM 13F INFORMATION TABLE
                                                           VALUE   SHARES/  SH/ PUT/ INVSTMT    OTHER          VOTING AUTHORITY
NAME OF ISSUER                 TITLE OF CLASS   CUSIP NO  (x$1000) PRN AMT  PRN CALL DSCRETN  MANAGERS    SOLE  SHARED     NONE
------------------------------ ---------------- --------- -------- -------- --- ---- ------- --------- ------- ------- --------

3M Co                          Common Stock     88579Y101    1242    13375 SH       SOLE               13375
Abbott Laboratories            Common Stock     002824100    2180    33280 SH       SOLE               33280
Accenture Ltd                  Common Stock     G1151C101     886    13320 SH       SOLE               13320
Access Midstream Partners LP   Master Ltd Part  00434L109   31665   944100 SH       SOLE              944100
Aflac Inc                      Common Stock     001055102    1308    24620 SH       SOLE               24620
Allete Inc                     Common Stock     018522300    1351    32960 SH       SOLE               32960
Alliant Energy Corp            Common Stock     018802108   65865  1500000 SH       SOLE             1500000
Allstate Corp                  Common Stock     020002101     408    10165 SH       SOLE               10165
Altria Group Inc               Common Stock     02209S103    1340    42655 SH       SOLE               42655
Amazon.Com Inc                 Common Stock     023135106    1905     7585 SH       SOLE                7585
American Campus Communities    REIT             024835100   30893   669698 SH       SOLE              666239              3459
American Electric Power        Common Stock     025537101     232     5435 SH       SOLE                5435
American Express Co            Common Stock     025816109    5219    90795 SH       SOLE               90795
American Tower REIT Inc        Common Stock     03027X100    4812    62280 SH       SOLE               62280
American Water Works Co        Common Stock     030420103   37130  1000000 SH       SOLE             1000000
Amgen Inc                      Common Stock     031162100    1397    16180 SH       SOLE               16180
Anadarko Petroleum Corp        Common Stock     032511107     779    10480 SH       SOLE               10480
Apache Corp                    Common Stock     037411105     644     8205 SH       SOLE                8205
Apple Computer Inc             Common Stock     037833100   15154    28430 SH       SOLE               28430
AT & T Inc.                    Common Stock     00206R102  104977  3114127 SH       SOLE             3114127
Atlas Pipeline Partner LP      Master Ltd Part  049392103    8587   272000 SH       SOLE              272000
Avalonbay Communities Inc      REIT             053484101   83885   618666 SH       SOLE              615404              3262
Avon Products                  Common Stock     054303102    1278    89015 SH       SOLE               89015
Baker Hughes Inc               Common Stock     057224107     377     9240 SH       SOLE                9240
Bank of America Corp           Common Stock     060505104    3992   344165 SH       SOLE              344165
Bank of New York Mellon Corp   Common Stock     064058100    2454    95486 SH       SOLE               95486
Baxter International Inc       Common Stock     071813109     767    11500 SH       SOLE               11500
BCE Inc                        Foreign Common   05534B760   42259   984137 SH       SOLE              984137
Berkshire Hathaway             Common Stock     084670702    3452    38488 SH       SOLE               38488
Biomed Realty Trust Inc        REIT             09063H107   36118  1868514 SH       SOLE             1858735              9779
Boardwalk Pipeline Prtnrs      Master Ltd Part  096627104    6664   267639 SH       SOLE              267639
Boeing Co                      Common Stock     097023105    1069    14190 SH       SOLE               14190
Boston Properties Inc          REIT             101121101   85762   810528 SH       SOLE              806280              4248
Bristol-Myers Squibb Co        Common Stock     110122108    1149    35265 SH       SOLE               35265
Buckeye Partners               Master Ltd Part  118230101   14109   310700 SH       SOLE              310700
Camden Property Trust          REIT             133131102   52806   774170 SH       SOLE              770180              3990
Capital One Financial Co       Common Stock     14040H105    4548    78510 SH       SOLE               78510
Caterpillar Inc                Common Stock     149123101    5049    56360 SH       SOLE               56360
Centerpoint Energy Inc         Common Stock     15189T107   61383  3188750 SH       SOLE             3188750
CenturyLink Inc                Common Stock     156700106  104842  2680000 SH       SOLE             2680000
Chevron Corp                   Common Stock     166764100    7617    70435 SH       SOLE               70435
Cisco Systems Inc              Common Stock     17275R102    4984   253650 SH       SOLE              253650
Citigroup Inc                  Common Stock     172967424    2434    61538 SH       SOLE               61538
CMS Energy Corp                Common Stock     125896100   63624  2609680 SH       SOLE             2609680
Coach Inc                      Common Stock     189754104    2106    37940 SH       SOLE               37940
Coca-Cola Co                   Common Stock     191216100    2944    81210 SH       SOLE               81210
Colgate-Palmolive Co           Common Stock     194162103     980     9370 SH       SOLE                9370
Comcast Corp                   Common Stock     20030N101    2099    56145 SH       SOLE               56145
Conocophillips                 Common Stock     20825C104    3677    63401 SH       SOLE               63401
Consolidated Edison Inc        Common Stock     209115104    2144    38610 SH       SOLE               38610
Copano Energy LLC              Master Ltd Part  217202100   22039   696770 SH       SOLE              696770
Costco Wholesale Corp          Common Stock     22160K105     894     9055 SH       SOLE                9055
Crown Castle Intl Corp         Common Stock     228227104    6247    86565 SH       SOLE               86565
CVS Caremark Corp              Common Stock     126650100    1290    26685 SH       SOLE               26685
DCP Midstream Partners         Master Ltd Part  23311P100   18795   450184 SH       SOLE              450184
DCT Industrial                 REIT             233153105   34654  5339624 SH       SOLE             5311671             27953
DDR Corp                       REIT             23317H102   32636  2084018 SH       SOLE             2073060             10958
Dell Inc                       Common Stock     24702R101     310    30650 SH       SOLE               30650
Devon Energy Corporation       Common Stock     25179M103     411     7900 SH       SOLE                7900
Digital Realty Trust Inc       REIT             253868103   23730   349538 SH       SOLE              347677              1861
Dominion Resources Inc         Common Stock     25746U109   75698  1461353 SH       SOLE             1461353
DOW Chemical Co                Common Stock     260543103     812    25120 SH       SOLE               25120
DTE Energy Co                  Common Stock     233331107   40352   671975 SH       SOLE              671975
DU Pont [E I] De Nemours       Common Stock     263534109    2989    66460 SH       SOLE               66460
Duke Energy Corp               Common Stock     26441C204   33899   531333 SH       SOLE              531333
Duke Realty Corp               REIT             264411505   13176   949934 SH       SOLE              945027              4907
eBay Inc                       Common Stock     278642103    1242    24340 SH       SOLE               24340
EL Paso Pipeline Partners LP   Master Ltd Part  283702108   20666   559000 SH       SOLE              559000
EMC Corp                       Common Stock     268648102    1114    44040 SH       SOLE               44040
Emerson Electric Co            Common Stock     291011104    5556   104915 SH       SOLE              104915
Enbridge Energy Partners       Master Ltd Part  29250R106   42125  1509861 SH       SOLE             1509861
Enbridge Inc                   Foreign Common   29250N105   83408  1925386 SH       SOLE             1925386
Energy Transfer Partners       Master Ltd Part  29273R109   19452   453100 SH       SOLE              453100
Entergy Corp                   Common Stock     29364G103   68181  1069500 SH       SOLE             1069500
Enterprise Prods Prtnrs        Master Ltd Part  293792107   43640   871400 SH       SOLE              871400
EQT Midstream Partners LP      Master Ltd Part  26885B100    9843   316000 SH       SOLE              316000
Equity Lifestyle Properties    REIT             29472R108   31875   473701 SH       SOLE              471243              2458
Equity Residential             REIT             29476L107  107254  1892603 SH       SOLE             1882646              9957
Essex Property Trust           REIT             297178105   51024   347930 SH       SOLE              346135              1795
Exelon Corp                    Common Stock     30161N101   50397  1694575 SH       SOLE             1694575
Extra Space Storage Inc        REIT             30225T102   70606  1940248 SH       SOLE             1930017             10231
Exxon Mobil Corp               Common Stock     30231G102   12343   142615 SH       SOLE              142615
Fedex Corp                     Common Stock     31428X106     562     6125 SH       SOLE                6125
Firstenergy Corp               Common Stock     337932107   52845  1265440 SH       SOLE             1265440
Ford Motor Co                  Common Stock     345370860    4178   322635 SH       SOLE              322635
Freeprt McMoran Cop and Gld    Common Stock     35671D857     681    19920 SH       SOLE               19920
Frontier Communications Corp   Common Stock     35906A108   35903  8388491 SH       SOLE             8388491
General Dynamics Corp          Common Stock     369550108     482     6960 SH       SOLE                6960
General Electric Co            Common Stock     369604103    7243   345088 SH       SOLE              345088
General Growth Pptys Inc       REIT             370023103   50361  2537055 SH       SOLE             2523878             13177
Genesis Energy LP              Master Ltd Part  371927104   17574   492000 SH       SOLE              492000
Gilead Sciences Inc            Common Stock     375558103    1167    15890 SH       SOLE               15890
Goldman Sachs Group Inc        Common Stock     38141G104    1207     9465 SH       SOLE                9465
Google Inc                     Common Stock     38259P508    3944     5560 SH       SOLE                5560
Great Plains Energy Inc        Common Stock     391164100   10155   500000 SH       SOLE              500000
Halliburton Co                 Common Stock     406216101    4391   126575 SH       SOLE              126575
HCP Inc                        REIT             40414L109   34092   754583 SH       SOLE              750787              3796
Health Care Reit Inc           REIT             42217K106   61842  1009004 SH       SOLE             1003724              5280
Heinz [H J] Co                 Common Stock     423074103     388     6720 SH       SOLE                6720
Hewlett-Packard Co             Common Stock     428236103     588    41265 SH       SOLE               41265
Home Depot Inc                 Common Stock     437076102    1956    31625 SH       SOLE               31625
Honeywell International Inc    Common Stock     438516106    1040    16380 SH       SOLE               16380
Host Hotels & Resorts Inc      REIT             44107P104   67316  4295872 SH       SOLE             4273155             22717
Illinois Tool Works            Common Stock     452308109    3618    59500 SH       SOLE               59500
Integrys Energy Group Inc      Common Stock     45822P105   30653   587000 SH       SOLE              587000
Intel Corp                     Common Stock     458140100    5450   264200 SH       SOLE              264200
Intl Business Machines Corp    Common Stock     459200101   10631    55500 SH       SOLE               55500
Intl Flavors & Fragrances      Common Stock     459506101    5165    77620 SH       SOLE               77620
iShares                        Exchange Traded  464287465   18140   319250 SH       SOLE              319250
iShares                        Exchange Traded  464287606    5013    43820 SH       SOLE               43820
iShares                        Exchange Traded  464287630    8945   118460 SH       SOLE              118460
iShares                        Exchange Traded  464287648    4777    50120 SH       SOLE               50120
iShares                        Exchange Traded  464287705    9115   103410 SH       SOLE              103410
iShares                        Exchange Traded  464288638   28078   252295 SH       SOLE              252295
iShares                        Exchange Traded  464288646   47716   452374 SH       SOLE              452374
J P Morgan Chase & Co          Common Stock     46625H100    9154   208190 SH       SOLE              208190
Johnson & Johnson              Common Stock     478160104    7585   108200 SH       SOLE              108200
Kilroy Realty Corp             REIT             49427F108   70597  1490329 SH       SOLE             1482527              7802
Kimberly-Clark Corp            Common Stock     494368103    3523    41730 SH       SOLE               41730
Kimco Realty Corp              REIT             49446R109   30124  1559226 SH       SOLE             1551068              8158
Kinder Morgan Energy Partners  Master Ltd Part  494550106   39017   489000 SH       SOLE              489000
Kinder Morgan Inc              Common Stock     49456B101   58985  1669546 SH       SOLE             1669546
Lasalle Hotel Properties       REIT             517942108   31144  1226630 SH       SOLE             1220181              6449
Lilly [Eli] & Co               Common Stock     532457108    3829    77645 SH       SOLE               77645
Linn Energy LLC                Master Ltd Part  536020100    8035   228000 SH       SOLE              228000
Lockheed Martin Corp           Common Stock     539830109     524     5675 SH       SOLE                5675
Lowe's Companies Inc           Common Stock     548661107     850    23940 SH       SOLE               23940
Macerich Co                    REIT             554382101   56940   976676 SH       SOLE              971556              5120
Magellan Midstream Partn LP    Master Ltd Part  559080106   20303   470090 SH       SOLE              470090
Markwest Energy Partners LP    Master Ltd Part  570759100   25377   497500 SH       SOLE              497500
MasterCard Inc                 Common Stock     57636Q104    7249    14755 SH       SOLE               14755
McDonald's Corp                Common Stock     580135101    6094    69080 SH       SOLE               69080
Medtronic Inc                  Common Stock     585055106    2761    67305 SH       SOLE               67305
Merck &  Co Inc.               Common Stock     58933Y105    6422   156873 SH       SOLE              156873
Metlife Inc                    Common Stock     59156R108     757    22970 SH       SOLE               22970
Microsoft Corp                 Common Stock     594918104    8512   318428 SH       SOLE              318428
Mondelez International Inc     Common Stock     609207105     948    37225 SH       SOLE               37225
Monsanto Co                    Common Stock     61166W101    1059    11185 SH       SOLE               11185
Morgan Stanley                 Common Stock     617446448     555    29040 SH       SOLE               29040
National Grid Plc              ADRs             636274300   10837   188673 SH       SOLE              188673
National Oilwell Varco Inc     Common Stock     637071101     612     8955 SH       SOLE                8955
News Corp Cl A                 Common Stock     65248E104    1091    42735 SH       SOLE               42735
NextEra Energy Inc             Common Stock     65339F101   97502  1409190 SH       SOLE             1409190
Nike Inc                       Common Stock     654106103     792    15350 SH       SOLE               15350
Nippon Telegraph & Telephone   ADRs             654624105    1604    76295 SH       SOLE               76295
Nisource Inc                   Common Stock     65473P105   52302  2101345 SH       SOLE             2101345
Norfolk Southern Corp          Common Stock     655844108     416     6720 SH       SOLE                6720
Northeast Utilities            Common Stock     664397106   80112  2049940 SH       SOLE             2049940
Northwest Natural Gas Co       Common Stock     667655104   36984   836750 SH       SOLE              836750
NV Energy Inc                  Common Stock     67073Y106   56663  3123670 SH       SOLE             3123670
Occidental Petroleum Corp      Common Stock     674599105    2876    37535 SH       SOLE               37535
Oneok Inc                      Common Stock     682680103    2739    64060 SH       SOLE               64060
Oracle Corp                    Common Stock     68389X105    2639    79200 SH       SOLE               79200
Pepco Holdings Inc             Common Stock     713291102   70008  3570000 SH       SOLE             3570000
Pepsico Inc                    Common Stock     713448108    5249    76710 SH       SOLE               76710
Pfizer Inc                     Common Stock     717081103    7472   297943 SH       SOLE              297943
Philip Morris International    Common Stock     718172109    2959    35375 SH       SOLE               35375
Piedmont Natural Gas Co        Common Stock     720186105   31310  1000000 SH       SOLE             1000000
Pinnacle West Capital Corp     Common Stock     723484101   78825  1546190 SH       SOLE             1546190
Plains All Amer Pipelne  LP    Master Ltd Part  726503105   21517   475610 SH       SOLE              475610
PPL Corp                       Common Stock     69351T106   72863  2545000 SH       SOLE             2545000
Procter & Gamble Co            Common Stock     742718109    3921    57750 SH       SOLE               57750
Prologis Inc                   REIT             74340W103   90444  2478596 SH       SOLE             2465568             13028
Public Service Entrp Grp Inc   Common Stock     744573106   55080  1800000 SH       SOLE             1800000
Public Storage                 REIT             74460D109   98336   678369 SH       SOLE              674781              3588
Qualcomm Inc                   Common Stock     747525103    2217    35740 SH       SOLE               35740
Questar Corp                   Common Stock     748356102   39171  1982330 SH       SOLE             1982330
Raytheon Co                    Common Stock     755111507     399     6930 SH       SOLE                6930
Schlumberger Ltd               Common Stock     806857108    1930    27860 SH       SOLE               27860
Sempra Energy                  Common Stock     816851109   74965  1056735 SH       SOLE             1056735
Simon Property Group Inc       REIT             828806109  224302  1418826 SH       SOLE             1411305              7521
SL Green Realty Corp           REIT             78440X101   39986   521670 SH       SOLE              518988              2682
Southern Co                    Common Stock     842587107   64635  1509810 SH       SOLE             1509810
Spectra Energy Corp            Common Stock     847560109   59220  2162880 SH       SOLE             2162880
Starbucks Corp                 Common Stock     855244109     855    15950 SH       SOLE               15950
Sysco Corp                     Common Stock     871829107    2602    82170 SH       SOLE               82170
Tanger Factory Outlet Centers  REIT             875465106   48167  1408380 SH       SOLE             1401180              7200
Targa Resources Partners       Master Ltd Part  87611X105   27081   724465 SH       SOLE              724465
Target Corp                    Common Stock     87612E106     813    13745 SH       SOLE               13745
Taubman Centers Inc            REIT             876664103   67138   852875 SH       SOLE              848455              4420
TC Pipelines LP                Master Ltd Part  87233Q108   22353   553834 SH       SOLE              553834
TECO Energy Inc                Common Stock     872375100   50280  3000000 SH       SOLE             3000000
Teekay LNG Partners            Master Ltd Part  Y8564M105   16616   439820 SH       SOLE              439820
Teekay Offshore Partners       Master Ltd Part  Y8565J101   10012   384919 SH       SOLE              384919
Texas Instruments Inc          Common Stock     882508104     739    23875 SH       SOLE               23875
Time Warner Inc                Common Stock     887317303     952    19909 SH       SOLE               19909
TJX Companies Inc              Common Stock     872540109    1766    41610 SH       SOLE               41610
Transcanada Corp               Foreign Common   89353D107   57530  1215758 SH       SOLE             1215758
U S Bancorp                    Common Stock     902973304    1271    39782 SH       SOLE               39782
UDR Inc                        REIT             902653104   19754   830678 SH       SOLE              826326              4352
Union Pacific Corp             Common Stock     907818108    1250     9945 SH       SOLE                9945
Unisource Energy Corp          Common Stock     903119105   50904  1200000 SH       SOLE             1200000
United Parcel Service          Common Stock     911312106    1114    15105 SH       SOLE               15105
United Technologies Corp       Common Stock     913017109    1445    17620 SH       SOLE               17620
UnitedHealth Group Inc         Common Stock     91324P102    1175    21665 SH       SOLE               21665
Vanguard                       Exchange Traded  922042775   18724   409270 SH       SOLE              409270
Vanguard                       Exchange Traded  922042858    4613   103600 SH       SOLE              103600
Vectren Corp                   Common Stock     92240G101   44100  1500000 SH       SOLE             1500000
Ventas Inc                     REIT             92276F100   83324  1287450 SH       SOLE             1280675              6775
Verizon Communications Inc     Common Stock     92343V104   69940  1616358 SH       SOLE             1616358
Visa Inc                       Common Stock     92826C839    1663    10970 SH       SOLE               10970
Vodafone Group PLC             ADRs             92857W209   41018  1628335 SH       SOLE             1628335
Vornado Realty Trust           REIT             929042109   31200   389611 SH       SOLE              387564              2047
Wal-Mart Stores                Common Stock     931142103    5323    78010 SH       SOLE               78010
Walgreen Co                    Common Stock     931422109    3555    96066 SH       SOLE               96066
Walt Disney Co                 Common Stock     254687106    1875    37650 SH       SOLE               37650
Weingarten Realty Invst        REIT             948741103   23781   888354 SH       SOLE              883579              4775
Wellpoint Inc                  Common Stock     94973V107    2925    48010 SH       SOLE               48010
Wells Fargo & Co               Common Stock     949746101    4593   134364 SH       SOLE              134364
Westar Energy Inc              Common Stock     95709T100   82597  2886000 SH       SOLE             2886000
Western Gas Partners LP        Master Ltd Part  958254104    8669   182000 SH       SOLE              182000
WGL Holdings Inc               Common Stock     92924F106   39190  1000000 SH       SOLE             1000000
Williams Cos Inc               Common Stock     969457100   65180  1990824 SH       SOLE             1990824
Williams Partners LP           Master Ltd Part  96950F104   18588   382000 SH       SOLE              382000
Windstream Corp                Common Stock     97381W104   72513  8757577 SH       SOLE             8757577
Wisconsin Energy Corp          Common Stock     976657106    3229    87618 SH       SOLE               87618
XCEL Energy Inc                Common Stock     98389B100   74352  2783695 SH       SOLE             2783695