The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
8POINT3 ENERGY PARTNERS LP CL A RPT LTDPT 282539105 2 157 SH   SOLE N/A 157 0 0
ACUITY BRANDS INC COM 00508Y102 2 14 SH   SOLE N/A 14 0 0
AMERICAN WTR WKS CO INC NEW COM 030420103 5 98 SH   SOLE N/A 98 0 0
ANADARKO PETE CORP COM 032511107 24,892 412,192 SH   SOLE N/A 412,192 0 0
ANADARKO PETE CORP UNIT 99/99/9999 032511404 25,943 693,100 SH   SOLE N/A 693,100 0 0
ANTERO MIDSTREAM PARTNERS LP UNT LTD PARTN 03673L103 175,118 9,912,018 SH   SOLE N/A 9,243,179 0 668,839
ANTERO RES CORP COM 03674X106 3,893 183,986 SH   SOLE N/A 183,986 0 0
APACHE CORP COM 037411105 2 42 SH   SOLE N/A 42 0 0
AQUA AMERICA INC COM 03836W103 1 38 SH   SOLE N/A 38 0 0
ASPEN AEROGELS INC COM 04523Y105 0 57 SH   SOLE N/A 57 0 0
ATWOOD OCEANICS INC COM 050095108 0 23 SH   SOLE N/A 23 0 0
BADGER METER INC COM 056525108 1 18 SH   SOLE N/A 18 0 0
BAKER HUGHES INC COM 057224107 1,142 21,943 SH   SOLE N/A 21,943 0 0
BP PLC SPONSORED ADR 055622104 2,946 96,400 SH   SOLE N/A 96,400 0 0
BUCKEYE PARTNERS L P UNIT LTD PARTN 118230101 739,610 12,478,664 SH   SOLE N/A 11,523,944 0 954,720
C&J ENERGY SVCS LTD SHS G3164Q101 0 89 SH   SOLE N/A 89 0 0
CABOT OIL & GAS CORP COM 127097103 7,272 332,674 SH   SOLE N/A 332,674 0 0
CALPINE CORP COM NEW 131347304 1 79 SH   SOLE N/A 79 0 0
CAMERON INTERNATIONAL CORP COM 13342B105 1 21 SH   SOLE N/A 21 0 0
CANADIAN SOLAR INC COM 136635109 1 33 SH   SOLE N/A 33 0 0
CARRIZO OIL & GAS INC COM 144577103 7,105 232,643 SH   SOLE N/A 232,643 0 0
CENOVUS ENERGY INC COM 15135U109 2,323 153,200 SH   SOLE N/A 153,200 0 0
CENTERPOINT ENERGY INC COM 15189T107 4,569 253,253 SH   SOLE N/A 253,253 0 0
CHART INDS INC COM PAR $0.01 16115Q308 0 7 SH   SOLE N/A 7 0 0
CHENIERE ENERGY INC COM NEW 16411R208 31,039 642,639 SH   SOLE N/A 642,639 0 0
CHEVRON CORP NEW COM 166764100 1 18 SH   SOLE N/A 18 0 0
CIMAREX ENERGY CO COM 171798101 11,055 107,872 SH   SOLE N/A 107,872 0 0
CMS ENERGY CORP COM 125896100 2 49 SH   SOLE N/A 49 0 0
COLUMBIA PIPELINE GROUP INC COM 198280109 142,700 7,802,096 SH   SOLE N/A 7,448,786 0 353,310
COLUMBIA PIPELINE PARTNERS L COM UT REPSTG 198281107 107,921 8,524,602 SH   SOLE N/A 7,964,332 0 560,270
CONCHO RES INC COM 20605P101 13,676 139,129 SH   SOLE N/A 139,129 0 0
CONNECTICUT WTR SVC INC COM 207797101 1 22 SH   SOLE N/A 22 0 0
CONOCOPHILLIPS COM 20825C104 1,630 33,982 SH   SOLE N/A 33,982 0 0
CONTINENTAL RESOURCES INC COM 212015101 3,055 105,440 SH   SOLE N/A 105,440 0 0
CORE LABORATORIES N V COM N22717107 1 10 SH   SOLE N/A 10 0 0
DANAHER CORP DEL COM 235851102 4 44 SH   SOLE N/A 44 0 0
DCP MIDSTREAM PARTNERS LP COM UT LTD PTN 23311P100 154,775 6,400,958 SH   SOLE N/A 5,953,633 0 447,325
DEVON ENERGY CORP NEW COM 25179M103 7,944 214,169 SH   SOLE N/A 214,169 0 0
DHT HOLDINGS INC SHS NEW Y2065G121 198 26,661 SH   SOLE N/A 26,661 0 0
DIAMONDBACK ENERGY INC COM 25278X109 5,708 88,365 SH   SOLE N/A 88,365 0 0
DOMINION MIDSTREAM PARTNERS COM UT REP LTD 257454108 73,568 2,739,948 SH   SOLE N/A 2,577,846 0 162,102
DOMINION RES INC VA NEW COM 25746U109 5 70 SH   SOLE N/A 70 0 0
DORIAN LPG LTD SHS USD Y2106R110 814 78,917 SH   SOLE N/A 78,917 0 0
DRIL-QUIP INC COM 262037104 1 12 SH   SOLE N/A 12 0 0
DTE ENERGY CO COM 233331107 2 29 SH   SOLE N/A 29 0 0
EASTMAN CHEM CO COM 277432100 1 17 SH   SOLE N/A 17 0 0
ECOLAB INC COM 278865100 2 19 SH   SOLE N/A 19 0 0
EDISON INTL COM 281020107 2 31 SH   SOLE N/A 31 0 0
ENBRIDGE ENERGY MANAGEMENT L SHS UNITS LLI 29250X103 34,576 1,453,985 SH   SOLE N/A 1,453,985 0 0
ENBRIDGE ENERGY PARTNERS L P COM 29250R106 394,695 15,966,620 SH   SOLE N/A 14,792,026 0 1,174,594
ENBRIDGE INC COM 29250N105 159,236 4,288,608 SH   SOLE N/A 4,288,608 0 0
ENERGEN CORP COM 29265N108 3,919 78,596 SH   SOLE N/A 78,596 0 0
ENERGY TRANSFER EQUITY L P COM UT LTD PTN 29273V100 539,097 25,905,681 SH   SOLE N/A 23,314,443 0 2,591,238
ENERGY TRANSFER PRTNRS L P UNIT LTD PARTN 29273R109 334,807 8,152,098 SH   SOLE N/A 8,152,098 0 0
ENLINK MIDSTREAM PARTNERS LP COM UNIT REP LTD 29336U107 104,160 6,609,162 SH   SOLE N/A 6,609,162 0 0
ENLINK MIDSTREAM LLC COM UNIT REP LTD 29336T100 86,184 4,714,676 SH   SOLE N/A 4,346,030 0 368,646
ENSCO PLC SHS CLASS A G3157S106 0 28 SH   SOLE N/A 28 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 1,070,515 42,992,569 SH   SOLE N/A 39,587,668 0 3,404,901
EOG RES INC COM 26875P101 33,405 458,856 SH   SOLE N/A 458,856 0 0
EP ENERGY CORP CL A 268785102 1,022 198,417 SH   SOLE N/A 198,417 0 0
EQT CORP COM 26884L109 20,050 309,563 SH   SOLE N/A 309,563 0 0
EQT GP HLDGS LP COM UNIT REP 26885J103 43,950 1,932,706 SH   SOLE N/A 1,756,256 0 176,450
EQT MIDSTREAM PARTNERS LP UNIT LTD PARTN 26885B100 464,920 7,009,194 SH   SOLE N/A 6,495,718 0 513,476
EXTERRAN HLDGS INC COM 30225X103 1 35 SH   SOLE N/A 35 0 0
EXXON MOBIL CORP COM 30231G102 3 35 SH   SOLE N/A 35 0 0
FIRST SOLAR INC COM 336433107 3 59 SH   SOLE N/A 59 0 0
FLUOR CORP NEW COM 343412102 0 7 SH   SOLE N/A 7 0 0
FMC TECHNOLOGIES INC COM 30249U101 1 31 SH   SOLE N/A 31 0 0
FORUM ENERGY TECHNOLOGIES IN COM 34984V100 1 41 SH   SOLE N/A 41 0 0
FRANKS INTL N V COM N33462107 1 48 SH   SOLE N/A 48 0 0
GENESIS ENERGY L P UNIT LTD PARTN 371927104 236,146 6,159,270 SH   SOLE N/A 5,667,082 0 492,188
GULFPORT ENERGY CORP COM NEW 402635304 1,099 37,045 SH   SOLE N/A 37,045 0 0
HALLIBURTON CO COM 406216101 1 17 SH   SOLE N/A 17 0 0
HANNON ARMSTRONG SUST INFR C COM 41068X100 4 235 SH   SOLE N/A 235 0 0
HD SUPPLY HLDGS INC COM 40416M105 2 68 SH   SOLE N/A 68 0 0
HELMERICH & PAYNE INC COM 423452101 329 6,963 SH   SOLE N/A 6,963 0 0
HESS CORP COM 42809H107 2,262 45,193 SH   SOLE N/A 45,193 0 0
HOEGH LNG PARTNERS LP COM UNIT LTD Y3262R100 521 32,054 SH   SOLE N/A 32,054 0 0
HOLLY ENERGY PARTNERS L P COM UT LTD PTN 435763107 62,775 2,162,428 SH   SOLE N/A 2,162,428 0 0
HOLLYFRONTIER CORP COM 436106108 2 47 SH   SOLE N/A 47 0 0
IDEX CORP COM 45167R104 2 29 SH   SOLE N/A 29 0 0
INFRAREIT INC COM 45685L100 4,375 184,749 SH   SOLE N/A 184,749 0 0
ITC HLDGS CORP COM 465685105 1 29 SH   SOLE N/A 29 0 0
ITRON INC COM 465741106 1 40 SH   SOLE N/A 40 0 0
KINDER MORGAN INC DEL COM 49456B101 170,944 6,175,726 SH   SOLE N/A 6,175,726 0 0
LAREDO PETROLEUM INC COM 516806106 3,264 346,099 SH   SOLE N/A 346,099 0 0
LINDSAY CORP COM 535555106 0 6 SH   SOLE N/A 6 0 0
LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,942 35,296 SH   SOLE N/A 35,296 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 1,042,782 17,347,901 SH   SOLE N/A 15,937,531 0 1,410,370
MARATHON OIL CORP COM 565849106 4,319 280,430 SH   SOLE N/A 280,430 0 0
MARATHON PETE CORP COM 56585A102 565 12,188 SH   SOLE N/A 12,188 0 0
MARKWEST ENERGY PARTNERS L P UNIT LTD PARTN 570759100 526,480 12,269,400 SH   SOLE N/A 11,388,201 0 881,199
MPLX LP COM UNIT REP LTD 55336V100 171,907 4,499,007 SH   SOLE N/A 4,126,085 0 372,922
MRC GLOBAL INC COM 55345K103 0 39 SH   SOLE N/A 39 0 0
MUELLER WTR PRODS INC COM SER A 624758108 1 137 SH   SOLE N/A 137 0 0
NABORS INDUSTRIES LTD SHS G6359F103 1 90 SH   SOLE N/A 90 0 0
NATIONAL FUEL GAS CO N J COM 636180101 26,469 529,587 SH   SOLE N/A 529,587 0 0
NATIONAL OILWELL VARCO INC COM 637071101 1 19 SH   SOLE N/A 19 0 0
NEWFIELD EXPL CO COM 651290108 11,215 340,879 SH   SOLE N/A 340,879 0 0
NEWPARK RES INC COM PAR $.01NEW 651718504 0 91 SH   SOLE N/A 91 0 0
NEXTERA ENERGY INC COM 65339F101 5 49 SH   SOLE N/A 49 0 0
NEXTERA ENERGY PARTNERS LP COM UNIT PART IN 65341B106 4,108 188,450 SH   SOLE N/A 188,450 0 0
NISOURCE INC COM 65473P105 67,485 3,637,989 SH   SOLE N/A 3,637,989 0 0
NOBLE ENERGY INC COM 655044105 8,015 265,559 SH   SOLE N/A 265,559 0 0
NORDIC AMERICAN TANKERS LIMI COM G65773106 200 13,135 SH   SOLE N/A 13,135 0 0
NRG ENERGY INC COM NEW 629377508 298 20,043 SH   SOLE N/A 20,043 0 0
NRG YIELD INC CL C 62942X405 1,354 116,650 SH   SOLE N/A 116,650 0 0
NUSTAR ENERGY LP UNIT COM 67058H102 52,038 1,161,045 SH   SOLE N/A 1,161,045 0 0
OCCIDENTAL PETE CORP DEL COM 674599105 15,149 229,009 SH   SOLE N/A 229,009 0 0
ONE GAS INC COM 68235P108 2 53 SH   SOLE N/A 53 0 0
ONEOK PARTNERS LP UNIT LTD PARTN 68268N103 292,519 9,997,231 SH   SOLE N/A 9,622,621 0 374,610
ONEOK INC NEW COM 682680103 161,029 5,000,905 SH   SOLE N/A 4,720,601 0 280,304
PATTERN ENERGY GROUP INC CL A 70338P100 2 80 SH   SOLE N/A 80 0 0
PATTERSON UTI ENERGY INC COM 703481101 164 12,471 SH   SOLE N/A 12,471 0 0
PEMBINA PIPELINE CORP COM 706327103 43,246 1,797,301 SH   SOLE N/A 1,797,301 0 0
PENN WEST PETE LTD NEW COM 707887105 3 6,400 SH   SOLE N/A 6,400 0 0
PENTAIR PLC SHS G7S00T104 2 45 SH   SOLE N/A 45 0 0
PHILLIPS 66 COM 718546104 1,186 15,432 SH   SOLE N/A 15,432 0 0
PHILLIPS 66 PARTNERS LP COM UNIT REP INT 718549207 232,621 4,721,345 SH   SOLE N/A 4,301,189 0 420,156
PINNACLE WEST CAP CORP COM 723484101 1 15 SH   SOLE N/A 15 0 0
PIONEER NAT RES CO COM 723787107 28,762 236,455 SH   SOLE N/A 236,455 0 0
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 818,618 26,945,945 SH   SOLE N/A 24,941,336 0 2,004,609
PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 57,225 3,269,974 SH   SOLE N/A 3,269,974 0 0
PPL CORP COM 69351T106 2 70 SH   SOLE N/A 70 0 0
PRECISION DRILLING CORP COM 2010 74022D308 0 40 SH   SOLE N/A 40 0 0
RANGE RES CORP COM 75281A109 8,026 249,880 SH   SOLE N/A 249,880 0 0
ROSE ROCK MIDSTREAM L P COM U REP LTD 777149105 791 32,489 SH   SOLE N/A 32,489 0 0
ROYAL DUTCH SHELL PLC SPONS ADR A 780259206 5,426 114,500 SH   SOLE N/A 114,500 0 0
RSP PERMIAN INC COM 74978Q105 3,485 172,094 SH   SOLE N/A 172,094 0 0
SCHLUMBERGER LTD COM 806857108 986 14,296 SH   SOLE N/A 14,296 0 0
SEMGROUP CORP CL A 81663A105 29,101 673,009 SH   SOLE N/A 673,009 0 0
SEMPRA ENERGY COM 816851109 394 4,072 SH   SOLE N/A 4,072 0 0
SHELL MIDSTREAM PARTNERS L P UNIT LTD INT 822634101 194,193 6,598,474 SH   SOLE N/A 6,143,938 0 454,536
SOLARCITY CORP COM 83416T100 3 65 SH   SOLE N/A 65 0 0
SPECTRA ENERGY CORP COM 847560109 174,769 6,652,813 SH   SOLE N/A 6,652,813 0 0
SPECTRA ENERGY PARTNERS LP COM 84756N109 642,139 15,965,676 SH   SOLE N/A 14,855,939 0 1,109,737
SUNCOR ENERGY INC NEW COM 867224107 9,866 369,244 SH   SOLE N/A 369,244 0 0
SUNEDISON INC COM 86732Y109 1 133 SH   SOLE N/A 133 0 0
SUNOCO LOGISTICS PRTNRS L P COM UNITS 86764L108 586,463 20,462,763 SH   SOLE N/A 18,950,611 0 1,512,152
SUNPOWER CORP COM 867652406 3 150 SH   SOLE N/A 150 0 0
SUNRUN INC COM 86771W105 3 270 SH   SOLE N/A 270 0 0
SUPERIOR ENERGY SVCS INC COM 868157108 1 47 SH   SOLE N/A 47 0 0
TALLGRASS ENERGY PARTNERS LP COM UNIT 874697105 24,965 635,404 SH   SOLE N/A 635,404 0 0
TARGA RES CORP COM 87612G101 169,383 3,287,706 SH   SOLE N/A 2,981,493 0 306,213
TARGA RESOURCES PARTNERS LP COM UNIT 87611X105 152,612 5,255,219 SH   SOLE N/A 5,255,219 0 0
TEEKAY OFFSHORE PARTNERS L P PARTNERSHIP UN Y8565J101 3,214 223,330 SH   SOLE N/A 223,330 0 0
TERRAFORM PWR INC CL A COM 88104R100 1,229 86,410 SH   SOLE N/A 86,410 0 0
TESLA MTRS INC COM 88160R101 5 22 SH   SOLE N/A 22 0 0
TESORO CORP COM 881609101 1,625 16,714 SH   SOLE N/A 16,714 0 0
TESORO LOGISTICS LP COM UNIT LP 88160T107 433,636 9,636,356 SH   SOLE N/A 8,884,784 0 751,572
TETRA TECH INC NEW COM 88162G103 2 65 SH   SOLE N/A 65 0 0
TETRA TECHNOLOGIES INC DEL COM 88162F105 1 104 SH   SOLE N/A 104 0 0
TRANSCANADA CORP COM 89353D107 95,757 3,032,196 SH   SOLE N/A 3,032,196 0 0
U S SILICA HLDGS INC COM 90346E103 0 21 SH   SOLE N/A 21 0 0
VALERO ENERGY CORP NEW COM 91913Y100 1,666 27,724 SH   SOLE N/A 27,724 0 0
VALERO ENERGY PARTNERS LP COM UNT REP LP 91914J102 160,752 3,640,227 SH   SOLE N/A 3,343,940 0 296,287
VTTI ENERGY PARTNERS LP COM UNIT RP LT Y9384M101 11,941 610,194 SH   SOLE N/A 610,194 0 0
WATTS WATER TECHNOLOGIES INC CL A 942749102 3 48 SH   SOLE N/A 48 0 0
WEATHERFORD INTL PLC ORD SHS G48833100 1 73 SH   SOLE N/A 73 0 0
WEC ENERGY GROUP INC COM 92939U106 2 47 SH   SOLE N/A 47 0 0
WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 96,540 2,448,396 SH   SOLE N/A 2,179,170 0 269,226
WESTERN GAS PARTNERS LP COM UNIT LP IN 958254104 481,793 10,290,315 SH   SOLE N/A 9,526,933 0 763,382
WESTLAKE CHEM CORP COM 960413102 1,375 26,495 SH   SOLE N/A 26,495 0 0
WHITING PETE CORP NEW COM 966387102 2,307 151,112 SH   SOLE N/A 151,112 0 0
WILLIAMS COS INC DEL COM 969457100 337,804 9,166,997 SH   SOLE N/A 8,586,686 0 580,311
WILLIAMS PARTNERS L P NEW COM UNIT LTD PAR 96949L105 170,700 5,347,748 SH   SOLE N/A 5,347,748 0 0
XYLEM INC COM 98419M100 4 123 SH   SOLE N/A 123 0 0