Duff & Phelps Investment Management

Duff & Phelps Investment Management as of June 30, 2012

Portfolio Holdings for Duff & Phelps Investment Management

Duff & Phelps Investment Management holds 0 positions in its portfolio as reported in the June 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    1585    17685 SH       SOLE               17685
Abbott Laboratories            Common Stock     002824100    2586    40110 SH       SOLE               40110
Accenture Ltd                  Common Stock     G1151C101     987    16430 SH       SOLE               16430
Aflac Inc                      Common Stock     001055102    1049    24620 SH       SOLE               24620
Alexandria R E Equities Inc    REIT             015271109   11573   159149 SH       SOLE              158295               854
Allete Inc                     Common Stock     018522300    1233    29490 SH       SOLE               29490
Alliant Energy Corp            Common Stock     018802108   68355  1500000 SH       SOLE             1500000
Allstate Corp                  Common Stock     020002101     441    12565 SH       SOLE               12565
Altria Group Inc               Common Stock     02209S103    1791    51840 SH       SOLE               51840
Amazon.Com Inc                 Common Stock     023135106    2087     9140 SH       SOLE                9140
American Electric Power        Common Stock     025537101     210     5255 SH       SOLE                5255
American Express Co            Common Stock     025816109    5570    95695 SH       SOLE               95695
American Tower REIT Inc        Common Stock     03027X100    5239    74940 SH       SOLE               74940
American Water Works Co        Common Stock     030420103   34280  1000000 SH       SOLE             1000000
Amgen Inc                      Common Stock     031162100    1447    19805 SH       SOLE               19805
Anadarko Petroleum Corp        Common Stock     032511107     843    12730 SH       SOLE               12730
Apache Corp                    Common Stock     037411105     874     9945 SH       SOLE                9945
Apartment Investment & Mgt     REIT             03748R101   10220   378109 SH       SOLE              376102              2007
Apple Computer Inc             Common Stock     037833100   15634    26770 SH       SOLE               26770
AT & T Inc.                    Common Stock     00206R102  139792  3920137 SH       SOLE             3920137
Avalonbay Communities Inc      REIT             053484101   79855   564424 SH       SOLE              561462              2962
Avon Products                  Common Stock     054303102    1443    89015 SH       SOLE               89015
Baker Hughes Inc               Common Stock     057224107     456    11090 SH       SOLE               11090
Bank of America Corp           Common Stock     060505104    3367   411595 SH       SOLE              411595
Bank of New York Mellon Corp   Common Stock     064058100    2221   101176 SH       SOLE              101176
Baxter International Inc       Common Stock     071813109     745    14020 SH       SOLE               14020
BCE Inc                        Foreign Common   05534B760   26009   631280 SH       SOLE              631280
Berkshire Hathaway             Common Stock     084670702    3733    44798 SH       SOLE               44798
Biomed Realty Trust Inc        REIT             09063H107   32871  1759685 SH       SOLE             1750246              9439
Boardwalk Pipeline Prtnrs      Master Ltd Part  096627104   16637   602139 SH       SOLE              602139
Boeing Co                      Common Stock     097023105    1419    19100 SH       SOLE               19100
Boston Properties Inc          REIT             101121101   77280   713108 SH       SOLE              709360              3748
BRE Properties                 REIT             05564E106   23415   468111 SH       SOLE              465641              2470
Bristol-Myers Squibb Co        Common Stock     110122108    1548    43055 SH       SOLE               43055
Buckeye Partners               Master Ltd Part  118230101   21609   414200 SH       SOLE              414200
Camden Property Trust          REIT             133131102   45974   679392 SH       SOLE              675702              3690
Campus Crest Communities       REIT             13466Y105    2431   233969 SH       SOLE              232665              1304
Capital One Financial Co       Common Stock     14040H105    4433    81100 SH       SOLE               81100
Caterpillar Inc                Common Stock     149123101    5033    59270 SH       SOLE               59270
Centerpoint Energy Inc         Common Stock     15189T107   65693  3178160 SH       SOLE             3178160
CenturyLink Inc                Common Stock     156700106  105833  2680000 SH       SOLE             2680000
Chesapeake Midstream Prtnrs    Master Ltd Part  16524K108    7700   283000 SH       SOLE              283000
Chevron Corp                   Common Stock     166764100    9257    87740 SH       SOLE               87740
CIA Energetica De Minas        ADRs             204409601   27883  1513750 SH       SOLE             1513750
Cisco Systems Inc              Common Stock     17275R102    4791   279010 SH       SOLE              279010
Citigroup Inc                  Common Stock     172967424    2047    74698 SH       SOLE               74698
CMS Energy Corp                Common Stock     125896100   61111  2600460 SH       SOLE             2600460
Coca-Cola Co                   Common Stock     191216100    4494    57475 SH       SOLE               57475
Colgate-Palmolive Co           Common Stock     194162103    1259    12090 SH       SOLE               12090
Comcast Corp                   Common Stock     20030N101    2197    68725 SH       SOLE               68725
Conocophillips                 Common Stock     20825C104    5318    95161 SH       SOLE               95161
Copano Energy LLC              Master Ltd Part  217202100    6624   238270 SH       SOLE              238270
Costco Wholesale Corp          Common Stock     22160K105    1045    10995 SH       SOLE               10995
Crown Castle Intl Corp         Common Stock     228227104    4628    78890 SH       SOLE               78890
CubeSmart                      REIT             229663109   13476  1154727 SH       SOLE             1148688              6039
CVS Caremark Corp              Common Stock     126650100    1526    32645 SH       SOLE               32645
DCP Midstream Partners         Master Ltd Part  23311P100    7995   189684 SH       SOLE              189684
DCT Industrial                 REIT             233153105   20046  3181850 SH       SOLE             3164950             16900
DDR Corp                       REIT             23317H102   28519  1948009 SH       SOLE             1936851             11158
Dell Inc                       Common Stock     24702R101     475    37910 SH       SOLE               37910
Devon Energy Corporation       Common Stock     25179M103     591    10190 SH       SOLE               10190
Digital Realty Trust Inc       REIT             253868103   27740   369518 SH       SOLE              367557              1961
Dominion Resources Inc         Common Stock     25746U109   78639  1456270 SH       SOLE             1456270
DOW Chemical Co                Common Stock     260543103     959    30460 SH       SOLE               30460
DTE Energy Co                  Common Stock     233331107   39709   669290 SH       SOLE              669290
DU Pont [E I] De Nemours       Common Stock     263534109    3580    70790 SH       SOLE               70790
Duke Energy Corp               Common Stock     26441C105   36758  1594000 SH       SOLE             1594000
Duke Realty Corp               REIT             264411505   20333  1388875 SH       SOLE             1381368              7507
eBay Inc                       Common Stock     278642103    1231    29310 SH       SOLE               29310
EMC Corp                       Common Stock     268648102    1371    53510 SH       SOLE               53510
Emerson Electric Co            Common Stock     291011104    5047   108345 SH       SOLE              108345
Enbridge Energy Partners       Master Ltd Part  29250R106   25412   825861 SH       SOLE              825861
Enbridge Inc                   Foreign Common   29250N105   76566  1917980 SH       SOLE             1917980
Energy Transfer Partners       Master Ltd Part  29273R109   25215   570600 SH       SOLE              570600
Entergy Corp                   Common Stock     29364G103   72608  1069500 SH       SOLE             1069500
Enterprise Prods Prtnrs        Master Ltd Part  293792107   25026   488400 SH       SOLE              488400
Equity Lifestyle Properties    REIT             29472R108   35565   515662 SH       SOLE              512904              2758
Equity Residential             REIT             29476L107   95915  1538084 SH       SOLE             1529869              8215
Essex Property Trust           REIT             297178105   44547   289417 SH       SOLE              287822              1595
Exelon Corp                    Common Stock     30161N101   63738  1694255 SH       SOLE             1694255
Extra Space Storage Inc        REIT             30225T102   69870  2283340 SH       SOLE             2271308             12032
Exxon Mobil Corp               Common Stock     30231G102   15739   183935 SH       SOLE              183935
Fedex Corp                     Common Stock     31428X106     732     7985 SH       SOLE                7985
Firstenergy Corp               Common Stock     337932107   60147  1222750 SH       SOLE             1222750
Ford Motor Co                  Common Stock     345370860    3260   339945 SH       SOLE              339945
Freeprt McMoran Cop and Gld    Common Stock     35671D857     824    24200 SH       SOLE               24200
Frontier Communications Corp   Common Stock     35906A108   32128  8388491 SH       SOLE             8388491
General Dynamics Corp          Common Stock     369550108     607     9205 SH       SOLE                9205
General Electric Co            Common Stock     369604103    8199   393428 SH       SOLE              393428
General Growth Pptys Inc       REIT             370023103   43640  2412379 SH       SOLE             2398552             13827
Gilead Sciences Inc            Common Stock     375558103     990    19310 SH       SOLE               19310
Goldman Sachs Group Inc        Common Stock     38141G104    1194    12455 SH       SOLE               12455
Google Inc                     Common Stock     38259P508    3724     6420 SH       SOLE                6420
Great Plains Energy Inc        Common Stock     391164100   10705   500000 SH       SOLE              500000
Halliburton Co                 Common Stock     406216101    3708   130625 SH       SOLE              130625
HCP Inc                        REIT             40414L109   53148  1203803 SH       SOLE             1197557              6246
Health Care Reit Inc           REIT             42217K106   59870  1026923 SH       SOLE             1021575              5348
Heinz [H J] Co                 Common Stock     423074103     443     8150 SH       SOLE                8150
Hewlett-Packard Co             Common Stock     428236103    1014    50405 SH       SOLE               50405
Home Depot Inc                 Common Stock     437076102    2061    38885 SH       SOLE               38885
Honeywell International Inc    Common Stock     438516106    1110    19870 SH       SOLE               19870
Host Hotels & Resorts Inc      REIT             44107P104   52010  3287598 SH       SOLE             3269381             18217
Illinois Tool Works            Common Stock     452308109    3147    59500 SH       SOLE               59500
Integrys Energy Group Inc      Common Stock     45822P105   33383   587000 SH       SOLE              587000
Intel Corp                     Common Stock     458140100    7659   287380 SH       SOLE              287380
Intl Business Machines Corp    Common Stock     459200101   12223    62495 SH       SOLE               62495
Intl Flavors & Fragrances      Common Stock     459506101    4254    77620 SH       SOLE               77620
iShares                        Exchange Traded  464287465   14717   294575 SH       SOLE              294575
iShares                        Exchange Traded  464287606    4639    43820 SH       SOLE               43820
iShares                        Exchange Traded  464287630    8338   118460 SH       SOLE              118460
iShares                        Exchange Traded  464287648    4584    50120 SH       SOLE               50120
iShares                        Exchange Traded  464287705    8440   103410 SH       SOLE              103410
iShares                        Exchange Traded  464288638   46275   423295 SH       SOLE              423295
iShares                        Exchange Traded  464288646   77507   740204 SH       SOLE              740204
ITC Holdings Corp              Common Stock     465685105    2402    34850 SH       SOLE               34850
J P Morgan Chase & Co          Common Stock     46625H100    8056   225470 SH       SOLE              225470
Johnson & Johnson              Common Stock     478160104    8094   119800 SH       SOLE              119800
Kilroy Realty Corp             REIT             49427F108   67629  1397002 SH       SOLE             1389412              7590
Kimberly-Clark Corp            Common Stock     494368103    3496    41730 SH       SOLE               41730
Kimco Realty Corp              REIT             49446R109   28292  1486683 SH       SOLE             1478525              8158
Kinder Morgan Energy Partners  Master Ltd Part  494550106   19409   247000 SH       SOLE              247000
Kinder Morgan Inc              Common Stock     49456B101   38664  1200000 SH       SOLE             1200000
Kraft Foods Inc                Common Stock     50075N104    1746    45205 SH       SOLE               45205
Lasalle Hotel Properties       REIT             517942108   31126  1068143 SH       SOLE             1062289              5854
Lilly [Eli] & Co               Common Stock     532457108    3529    82240 SH       SOLE               82240
Lockheed Martin Corp           Common Stock     539830109     586     6725 SH       SOLE                6725
Lowe's Companies Inc           Common Stock     548661107     853    30000 SH       SOLE               30000
Macerich Co                    REIT             554382101   20175   341658 SH       SOLE              339838              1820
Markwest Energy Partners Lp    Master Ltd Part  570759100    6657   135000 SH       SOLE              135000
MasterCard Inc                 Common Stock     57636Q104    7628    17735 SH       SOLE               17735
McDonald's Corp                Common Stock     580135101    6534    73810 SH       SOLE               73810
Medtronic Inc                  Common Stock     585055106    2805    72425 SH       SOLE               72425
Merck &  Co Inc.               Common Stock     58933Y105    7117   170463 SH       SOLE              170463
Metlife Inc                    Common Stock     59156R108     835    27060 SH       SOLE               27060
Microsoft Corp                 Common Stock     594918104    9506   310758 SH       SOLE              310758
Monsanto Co                    Common Stock     61166W101    1127    13620 SH       SOLE               13620
Morgan Stanley                 Common Stock     617446448     567    38830 SH       SOLE               38830
National Grid Plc              ADRs             636274300    9998   188673 SH       SOLE              188673
National Oilwell Varco Inc     Common Stock     637071101     695    10785 SH       SOLE               10785
News Corp Cl A                 Common Stock     65248E104    1197    53710 SH       SOLE               53710
NextEra Energy Inc             Common Stock     65339F101   96167  1397580 SH       SOLE             1397580
Nike Inc                       Common Stock     654106103     821     9355 SH       SOLE                9355
Nippon Telegraph & Telephone   ADRs             654624105    1653    71440 SH       SOLE               71440
Nisource Inc                   Common Stock     65473P105   51793  2092630 SH       SOLE             2092630
Norfolk Southern Corp          Common Stock     655844108     597     8320 SH       SOLE                8320
Northeast Utilities            Common Stock     664397106   79357  2044750 SH       SOLE             2044750
Northwest Natural Gas Co       Common Stock     667655104   39655   833080 SH       SOLE              833080
NV Energy Inc                  Common Stock     67073Y106   54722  3112750 SH       SOLE             3112750
Occidental Petroleum Corp      Common Stock     674599105    1773    20670 SH       SOLE               20670
Oneok Inc                      Common Stock     682680103    2429    57400 SH       SOLE               57400
Oracle Corp                    Common Stock     68389X105    2937    98890 SH       SOLE               98890
Pepco Holdings Inc             Common Stock     713291102   69865  3570000 SH       SOLE             3570000
Pepsico Inc                    Common Stock     713448108    5928    83900 SH       SOLE               83900
Pfizer Inc                     Common Stock     717081103    7674   333663 SH       SOLE              333663
Philip Morris International    Common Stock     718172109    3790    43435 SH       SOLE               43435
Piedmont Natural Gas Co        Common Stock     720186105   32190  1000000 SH       SOLE             1000000
Pinnacle West Capital Corp     Common Stock     723484101   77610  1500000 SH       SOLE             1500000
PPL Corp                       Common Stock     69351T106   70776  2545000 SH       SOLE             2545000
Procter & Gamble Co            Common Stock     742718109    4275    69800 SH       SOLE               69800
Prologis Inc                   REIT             74340W103   60837  1830798 SH       SOLE             1820770             10028
Public Service Entrp Grp Inc   Common Stock     744573106   60590  1864320 SH       SOLE             1864320
Public Storage                 REIT             74460D109   97264   673524 SH       SOLE              669886              3638
Qualcomm Inc                   Common Stock     747525103    2429    43620 SH       SOLE               43620
Questar Corp                   Common Stock     748356102   32420  1554180 SH       SOLE             1554180
Raytheon Co                    Common Stock     755111507     486     8580 SH       SOLE                8580
Regency Centers Corp           REIT             758849103    7772   163375 SH       SOLE              162488               887
Schlumberger Ltd               Common Stock     806857108    2206    33990 SH       SOLE               33990
Sempra Energy                  Common Stock     816851109   72456  1051910 SH       SOLE             1051910
Simon Property Group Inc       REIT             828806109  208391  1338760 SH       SOLE             1331614              7146
SL Green Realty Corp           REIT             78440X101   37541   467855 SH       SOLE              465423              2432
Southern Co                    Common Stock     842587107   72458  1564970 SH       SOLE             1564970
Spectra Energy Corp            Common Stock     847560109   52771  1815920 SH       SOLE             1815920
Staples Inc                    Common Stock     855030102    2598   199080 SH       SOLE              199080
Starbucks Corp                 Common Stock     855244109    1031    19330 SH       SOLE               19330
Targa Resources Partners       Master Ltd Part  87611X105   17913   502465 SH       SOLE              502465
Target Corp                    Common Stock     87612E106     979    16825 SH       SOLE               16825
Taubman Centers Inc            REIT             876664103   63638   824754 SH       SOLE              820334              4420
TC Pipelines LP                Master Ltd Part  87233Q108   15250   353834 SH       SOLE              353834
TECO Energy Inc                Common Stock     872375100   54180  3000000 SH       SOLE             3000000
Teekay LNG Partners            Master Ltd Part  Y8564M105   16955   439820 SH       SOLE              439820
Teekay Offshore Partners       Master Ltd Part  Y8565J101   10758   384919 SH       SOLE              384919
Telefonica SA                  ADRs             879382208    1762   134510 SH       SOLE              134510
Texas Instruments Inc          Common Stock     882508104     837    29165 SH       SOLE               29165
Time Warner Inc                Common Stock     887317303     941    24449 SH       SOLE               24449
TJX Companies Inc              Common Stock     872540109    4258    99180 SH       SOLE               99180
Transcanada Corp               Foreign Common   89353D107   50214  1198430 SH       SOLE             1198430
U S Bancorp                    Common Stock     902973304    1550    48192 SH       SOLE               48192
UDR Inc                        REIT             902653104   26994  1044676 SH       SOLE             1038924              5752
Union Pacific Corp             Common Stock     907818108    1443    12095 SH       SOLE               12095
Unisource Energy Corp          Common Stock     903119105   46092  1200000 SH       SOLE             1200000
United Parcel Service          Common Stock     911312106    1926    24455 SH       SOLE               24455
United Technologies Corp       Common Stock     913017109    1754    23220 SH       SOLE               23220
UnitedHealth Group Inc         Common Stock     91324P102    1542    26365 SH       SOLE               26365
Vanguard                       Exchange Traded  922042858    3727    93300 SH       SOLE               93300
Vectren Corp                   Common Stock     92240G101   44280  1500000 SH       SOLE             1500000
Ventas Inc                     REIT             92276F100   95313  1510029 SH       SOLE             1501804              8225
Verizon Communications Inc     Common Stock     92343V104   85281  1919015 SH       SOLE             1919015
Visa Inc                       Common Stock     92826C839    1570    12700 SH       SOLE               12700
Vodafone Group PLC             ADRs             92857W209   60542  2148420 SH       SOLE             2148420
Vornado Realty Trust           REIT             929042109   47908   570465 SH       SOLE              567418              3047
Wal-Mart Stores                Common Stock     931142103    6050    86770 SH       SOLE               86770
Walgreen Co                    Common Stock     931422109    2962   100126 SH       SOLE              100126
Walt Disney Co                 Common Stock     254687106    2210    45560 SH       SOLE               45560
Weingarten Realty Invst        REIT             948741103   30057  1141099 SH       SOLE             1135024              6075
Wellpoint Inc                  Common Stock     94973V107    3063    48010 SH       SOLE               48010
Wells Fargo & Co               Common Stock     949746101    5470   163574 SH       SOLE              163574
Westar Energy Inc              Common Stock     95709T100   86436  2886000 SH       SOLE             2886000
WGL Holdings Inc               Common Stock     92924F106   39750  1000000 SH       SOLE             1000000
Williams Cos Inc               Common Stock     969457100   57052  1979590 SH       SOLE             1979590
Windstream Corp                Common Stock     97381W104   72856  7541980 SH       SOLE             7541980
Wisconsin Energy Corp          Common Stock     976657106    3169    80080 SH       SOLE               80080
XCEL Energy Inc                Common Stock     98389B100   87415  3076900 SH       SOLE             3076900