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
ABENGOA YIELD PLC ORD SHS G00349103 1,254 45,900 SH   SOLE N/A 45,900 0 0
ACCESS MIDSTREAM PARTNERS L UNIT 00434L109 325,416 6,003,978 SH   SOLE N/A 5,691,421 0 312,557
ACUITY BRANDS INC COM 00508Y102 4 27 SH   SOLE N/A 27 0 0
AMERICAN WTR WKS CO INC NEW COM 030420103 1 25 SH   SOLE N/A 25 0 0
ANADARKO PETE CORP COM 032511107 35,658 432,221 SH   SOLE N/A 432,221 0 0
ANTERO MIDSTREAM PARTNERS LP UNT LTD PARTN 03673L103 117,152 4,260,063 SH   SOLE N/A 3,864,916 0 395,147
ANTERO RES CORP COM 03674X106 7,711 190,018 SH   SOLE N/A 190,018 0 0
APACHE CORP COM 037411105 4,078 65,066 SH   SOLE N/A 65,066 0 0
AQUA AMERICA INC COM 03836W103 1 38 SH   SOLE N/A 38 0 0
BIOAMBER INC COM 09072Q106 0 58 SH   SOLE N/A 58 0 0
BP PLC SPONSORED ADR 055622104 3,675 96,400 SH   SOLE N/A 96,400 0 0
BUCKEYE PARTNERS L P UNIT LTD PARTN 118230101 826,443 10,923,114 SH   SOLE N/A 10,086,839 0 836,275
CABOT OIL & GAS CORP COM 127097103 3,644 123,054 SH   SOLE N/A 123,054 0 0
CALPINE CORP COM NEW 131347304 1 44 SH   SOLE N/A 44 0 0
CANADIAN SOLAR INC COM 136635109 1 42 SH   SOLE N/A 42 0 0
CARRIZO OIL & GAS INC COM 144577103 9,480 227,884 SH   SOLE N/A 227,884 0 0
CENOVUS ENERGY INC COM 15135U109 3,159 153,200 SH   SOLE N/A 153,200 0 0
CENTERPOINT ENERGY INC COM 15189T107 6,967 297,353 SH   SOLE N/A 297,353 0 0
CHENIERE ENERGY INC COM NEW 16411R208 31,152 442,503 SH   SOLE N/A 442,503 0 0
CHESAPEAKE ENERGY CORP COM 165167107 10,246 523,568 SH   SOLE N/A 523,568 0 0
CHEVRON CORP NEW COM 166764100 2 18 SH   SOLE N/A 18 0 0
CIMAREX ENERGY CO COM 171798101 13,739 129,617 SH   SOLE N/A 129,617 0 0
CMS ENERGY CORP COM 125896100 2 70 SH   SOLE N/A 70 0 0
CONCHO RES INC COM 20605P101 15,187 152,251 SH   SOLE N/A 152,251 0 0
CONOCOPHILLIPS COM 20825C104 2 28 SH   SOLE N/A 28 0 0
CONTINENTAL RESOURCES INC COM 212015101 10,166 265,026 SH   SOLE N/A 265,026 0 0
CRESTWOOD MIDSTREAM PARTNERS UNIT LTD PARTNER 226378107 44,036 2,900,954 SH   SOLE N/A 2,900,954 0 0
DCP MIDSTREAM PARTNERS LP COM UT LTD PTN 23311P100 438,854 9,660,015 SH   SOLE N/A 8,949,888 0 710,127
DEVON ENERGY CORP NEW COM 25179M103 6,241 101,967 SH   SOLE N/A 101,967 0 0
DOMINION MIDSTREAM PARTNERS COM UT REP LTD 257454108 101,139 2,580,065 SH   SOLE N/A 2,423,596 0 156,469
DOMINION RES INC VA NEW COM 25746U109 5 65 SH   SOLE N/A 65 0 0
DORIAN LPG LTD SHS USD Y2106R110 747 53,793 SH   SOLE N/A 53,793 0 0
DTE ENERGY CO COM 233331107 3 31 SH   SOLE N/A 31 0 0
EASTMAN CHEM CO COM 277432100 3 35 SH   SOLE N/A 35 0 0
EDISON INTL COM 281020107 4 67 SH   SOLE N/A 67 0 0
ENBRIDGE ENERGY MANAGEMENT L SHS UNITS LLI 29250X103 57,714 1,487,847 SH   SOLE N/A 1,487,847 0 0
ENBRIDGE ENERGY PARTNERS L P COM 29250R106 482,791 12,100,014 SH   SOLE N/A 11,500,882 0 599,132
ENBRIDGE INC COM 29250N105 181,070 3,522,083 SH   SOLE N/A 3,522,083 0 0
ENERGEN CORP COM 29265N108 5,363 84,112 SH   SOLE N/A 84,112 0 0
ENERGY TRANSFER EQUITY L P COM UT LTD PTN 29273V100 853,102 14,867,586 SH   SOLE N/A 13,222,662 0 1,644,924
ENERGY TRANSFER PRTNRS L P UNIT LTD PARTN 29273R109 480,984 7,399,761 SH   SOLE N/A 7,399,761 0 0
ENERPLUS CORP COM 292766102 2,648 275,800 SH   SOLE N/A 275,800 0 0
ENLINK MIDSTREAM PARTNERS LP COM UNIT REP LTD 29336U107 217,367 7,492,831 SH   SOLE N/A 7,165,645 0 327,186
ENLINK MIDSTREAM LLC COM UNIT REP LTD 29336T100 37,338 1,050,000 SH   SOLE N/A 1,050,000 0 0
ENPHASE ENERGY INC COM 29355A107 1 70 SH   SOLE N/A 70 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 1,095,595 30,332,086 SH   SOLE N/A 28,033,652 0 2,298,434
EOG RES INC COM 26875P101 43,963 477,495 SH   SOLE N/A 477,495 0 0
EP ENERGY CORP CL A 268785102 2,110 202,065 SH   SOLE N/A 202,065 0 0
EQT CORP COM 26884L109 21,026 277,751 SH   SOLE N/A 277,751 0 0
EQT MIDSTREAM PARTNERS LP UNIT LTD PARTN 26885B100 335,051 3,807,397 SH   SOLE N/A 3,592,837 0 214,560
EXXON MOBIL CORP COM 30231G102 1 15 SH   SOLE N/A 15 0 0
FIRST SOLAR INC COM 336433107 2 50 SH   SOLE N/A 50 0 0
FMSA HLDGS INC COM 30255X106 361 52,125 SH   SOLE N/A 52,125 0 0
GENESIS ENERGY L P UNIT LTD PARTN 371927104 183,106 4,316,493 SH   SOLE N/A 3,852,371 0 464,122
HALLIBURTON CO COM 406216101 806 20,500 SH   SOLE N/A 20,500 0 0
HESS CORP COM 42809H107 3,896 52,777 SH   SOLE N/A 52,777 0 0
HOEGH LNG PARTNERS LP COM UNIT LTD Y3262R100 1,031 49,946 SH   SOLE N/A 49,946 0 0
HOLLY ENERGY PARTNERS L P COM UT LTD PTN 435763107 94,087 3,145,664 SH   SOLE N/A 3,145,664 0 0
ITC HLDGS CORP COM 465685105 1 27 SH   SOLE N/A 27 0 0
ITRON INC COM 465741106 2 40 SH   SOLE N/A 40 0 0
KINDER MORGAN INC DEL COM 49456B101 242,407 5,729,318 SH   SOLE N/A 5,729,318 0 0
LAREDO PETROLEUM INC COM 516806106 697 67,370 SH   SOLE N/A 67,370 0 0
LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,143 26,992 SH   SOLE N/A 26,992 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 1,296,493 15,684,647 SH   SOLE N/A 14,424,668 0 1,259,979
MARATHON OIL CORP COM 565849106 13,204 466,723 SH   SOLE N/A 466,723 0 0
MARATHON PETE CORP COM 56585A102 1,036 11,476 SH   SOLE N/A 11,476 0 0
MARKWEST ENERGY PARTNERS L P UNIT LTD PARTN 570759100 688,291 10,243,947 SH   SOLE N/A 9,536,602 0 707,345
MAXWELL TECHNOLOGIES INC COM 577767106 1 162 SH   SOLE N/A 162 0 0
MPLX LP COM UNIT REP LTD 55336V100 401,170 5,458,833 SH   SOLE N/A 5,036,002 0 422,831
NATIONAL FUEL GAS CO N J COM 636180101 30,961 445,288 SH   SOLE N/A 445,288 0 0
NEWFIELD EXPL CO COM 651290108 10,682 393,861 SH   SOLE N/A 393,861 0 0
NEXTERA ENERGY INC COM 65339F101 9 88 SH   SOLE N/A 88 0 0
NEXTERA ENERGY PARTNERS LP COM UNIT PART IN 65341B106 3,882 115,028 SH   SOLE N/A 115,028 0 0
NISOURCE INC COM 65473P105 191,424 4,512,593 SH   SOLE N/A 4,512,593 0 0
NOBLE ENERGY INC COM 655044105 16,461 347,066 SH   SOLE N/A 347,066 0 0
NRG ENERGY INC COM NEW 629377508 1 46 SH   SOLE N/A 46 0 0
NRG YIELD INC COM CL A 62942X108 9,759 207,016 SH   SOLE N/A 207,016 0 0
NUSTAR ENERGY LP UNIT COM 67058H102 80,426 1,392,650 SH   SOLE N/A 1,392,650 0 0
OCCIDENTAL PETE CORP DEL COM 674599105 18,780 232,969 SH   SOLE N/A 232,969 0 0
OILTANKING PARTNERS L P UNIT LTD 678049107 268,074 5,755,132 SH   SOLE N/A 5,247,825 0 507,307
ONE GAS INC COM 68235P108 2 53 SH   SOLE N/A 53 0 0
ONEOK PARTNERS LP UNIT LTD PARTN 68268N103 276,999 6,989,625 SH   SOLE N/A 6,989,625 0 0
ONEOK INC NEW COM 682680103 358,167 7,193,543 SH   SOLE N/A 6,521,713 0 671,830
PATTERN ENERGY GROUP INC CL A 70338P100 2 80 SH   SOLE N/A 80 0 0
PEMBINA PIPELINE CORP COM 706327103 60,801 1,668,375 SH   SOLE N/A 1,668,375 0 0
PENN WEST PETE LTD NEW COM 707887105 13 6,400 SH   SOLE N/A 6,400 0 0
PHILLIPS 66 COM 718546104 1,914 26,700 SH   SOLE N/A 26,700 0 0
PHILLIPS 66 PARTNERS LP COM UNIT REP INT 718549207 187,121 2,714,659 SH   SOLE N/A 2,488,096 0 226,563
PINNACLE WEST CAP CORP COM 723484101 2 26 SH   SOLE N/A 26 0 0
PIONEER NAT RES CO COM 723787107 35,462 238,243 SH   SOLE N/A 238,243 0 0
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 1,236,106 24,086,246 SH   SOLE N/A 22,317,198 0 1,769,048
PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 210,515 8,197,619 SH   SOLE N/A 7,676,865 0 520,754
PLUG POWER INC COM NEW 72919P202 1 236 SH   SOLE N/A 236 0 0
POLYPORE INTL INC COM 73179V103 2 42 SH   SOLE N/A 42 0 0
PPL CORP COM 69351T106 3 80 SH   SOLE N/A 80 0 0
QUESTAR CORP COM 748356102 1 40 SH   SOLE N/A 40 0 0
RANGE RES CORP COM 75281A109 15,349 287,162 SH   SOLE N/A 287,162 0 0
REGENCY ENERGY PARTNERS L P COM UNITS L P 75885Y107 406,015 16,917,289 SH   SOLE N/A 16,058,092 0 859,197
RICE ENERGY INC COM 762760106 1,912 91,166 SH   SOLE N/A 91,166 0 0
ROSE ROCK MIDSTREAM L P COM U REP LTD 777149105 19,941 438,745 SH   SOLE N/A 438,745 0 0
ROYAL DUTCH SHELL PLC SPONS ADR A 780259206 7,666 114,500 SH   SOLE N/A 114,500 0 0
RSP PERMIAN INC COM 74978Q105 3,031 120,559 SH   SOLE N/A 120,559 0 0
SCHLUMBERGER LTD COM 806857108 1 14 SH   SOLE N/A 14 0 0
SEMGROUP CORP CL A 81663A105 38,097 557,055 SH   SOLE N/A 557,055 0 0
SEMPRA ENERGY COM 816851109 6 50 SH   SOLE N/A 50 0 0
SHELL MIDSTREAM PARTNERS L P UNIT LTD INT 822634101 187,169 4,567,322 SH   SOLE N/A 4,229,166 0 338,156
SOLARCITY CORP COM 83416T100 5 89 SH   SOLE N/A 89 0 0
SPECTRA ENERGY CORP COM 847560109 437,478 12,051,730 SH   SOLE N/A 11,121,054 0 930,676
SPECTRA ENERGY PARTNERS LP COM 84756N109 571,716 10,035,391 SH   SOLE N/A 9,581,319 0 454,072
SUMMIT MIDSTREAM PARTNERS LP COM UNIT LTD 866142102 35,097 923,600 SH   SOLE N/A 923,600 0 0
SUNCOR ENERGY INC NEW COM 867224107 16,163 508,585 SH   SOLE N/A 508,585 0 0
SUNEDISON INC COM 86732Y109 4 226 SH   SOLE N/A 226 0 0
SUNOCO LOGISTICS PRTNRS L P COM UNITS 86764L108 795,064 19,029,783 SH   SOLE N/A 17,518,470 0 1,511,313
SUNPOWER CORP COM 867652406 5 189 SH   SOLE N/A 189 0 0
TARGA RESOURCES PARTNERS LP COM UNIT 87611X105 368,299 7,692,133 SH   SOLE N/A 7,186,252 0 505,881
TARGA RES CORP COM 87612G101 69,535 655,678 SH   SOLE N/A 655,678 0 0
TEEKAY OFFSHORE PARTNERS L P PARTNERSHIP UN Y8565J101 5,983 223,330 SH   SOLE N/A 223,330 0 0
TERRAFORM PWR INC CL A COM 88104R100 3,693 119,597 SH   SOLE N/A 119,597 0 0
TESLA MTRS INC COM 88160R101 4 19 SH   SOLE N/A 19 0 0
TESORO LOGISTICS LP COM UNIT LP 88160T107 510,312 8,671,400 SH   SOLE N/A 7,952,374 0 719,026
TRANSCANADA CORP COM 89353D107 198,573 4,044,249 SH   SOLE N/A 4,044,249 0 0
U S SILICA HLDGS INC COM 90346E103 379 14,765 SH   SOLE N/A 14,765 0 0
VALERO ENERGY CORP NEW COM 91913Y100 1,527 30,851 SH   SOLE N/A 30,851 0 0
VALERO ENERGY PARTNERS LP COM UNT REP LP 91914J102 141,133 3,263,190 SH   SOLE N/A 2,983,632 0 279,558
VTTI ENERGY PARTNERS LP COM UNIT RP LT Y9384M101 1,067 43,054 SH   SOLE N/A 43,054 0 0
WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 121,487 2,017,058 SH   SOLE N/A 1,768,537 0 248,521
WESTERN GAS PARTNERS LP COM UNIT LP IN 958254104 603,218 8,257,605 SH   SOLE N/A 7,685,832 0 571,773
WESTLAKE CHEM CORP COM 960413102 1,453 23,790 SH   SOLE N/A 23,790 0 0
WHITING PETE CORP NEW COM 966387102 5,310 160,915 SH   SOLE N/A 160,915 0 0
WILLIAMS COS INC DEL COM 969457100 344,917 7,675,061 SH   SOLE N/A 7,253,875 0 421,186
WILLIAMS PARTNERS L P COM UNIT L P 96950F104 151,047 3,375,352 SH   SOLE N/A 3,375,352 0 0
WISCONSIN ENERGY CORP COM 976657106 5 92 SH   SOLE N/A 92 0 0