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 4 274 SH   SOLE N/A 274 0 0
ACUITY BRANDS INC COM 00508Y102 2 8 SH   SOLE N/A 8 0 0
ALPS ETF TR C&S GLOBL ETF 00162Q866 11,668 1,204,835 SH   SOLE N/A 968,268 0 236,567
AMERICAN WTR WKS CO INC NEW COM 030420103 6 98 SH   SOLE N/A 98 0 0
ANADARKO PETE CORP COM 032511107 21,499 442,549 SH   SOLE N/A 442,549 0 0
ANADARKO PETE CORP UNIT 99/99/9999 032511404 23,531 693,100 SH   SOLE N/A 693,100 0 0
ANTERO MIDSTREAM PARTNERS LP UNT LTD PARTN 03673L103 210,419 9,944,451 SH   SOLE N/A 9,220,806 0 723,645
ANTERO RES CORP COM 03674X106 3,829 175,644 SH   SOLE N/A 175,644 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
ARCHROCK INC COM 03957W106 0 57 SH   SOLE N/A 57 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 4 79 SH   SOLE N/A 79 0 0
BP PLC SPONSORED ADR 055622104 3,013 96,400 SH   SOLE N/A 96,400 0 0
BUCKEYE PARTNERS L P UNIT LTD PARTN 118230101 755,492 12,526,705 SH   SOLE N/A 11,453,787 0 1,072,918
C&J ENERGY SVCS LTD SHS G3164Q101 0 89 SH   SOLE N/A 89 0 0
CABOT OIL & GAS CORP COM 127097103 5,773 326,329 SH   SOLE N/A 326,329 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
CARRIZO OIL & GAS INC COM 144577103 6,602 223,206 SH   SOLE N/A 223,206 0 0
CENOVUS ENERGY INC COM 15135U109 1,933 153,200 SH   SOLE N/A 153,200 0 0
CENTERPOINT ENERGY INC COM 15189T107 180 9,828 SH   SOLE N/A 9,828 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 46,419 1,246,138 SH   SOLE N/A 1,246,138 0 0
CHEVRON CORP NEW COM 166764100 2 18 SH   SOLE N/A 18 0 0
CIMAREX ENERGY CO COM 171798101 9,085 101,646 SH   SOLE N/A 101,646 0 0
CMS ENERGY CORP COM 125896100 2 49 SH   SOLE N/A 49 0 0
COLUMBIA PIPELINE GROUP INC COM 198280109 85,502 4,275,109 SH   SOLE N/A 4,275,109 0 0
COLUMBIA PIPELINE PARTNERS L COM UT REPSTG 198281107 144,871 9,004,055 SH   SOLE N/A 8,287,794 0 716,261
CONCHO RES INC COM 20605P101 12,078 130,063 SH   SOLE N/A 130,063 0 0
CONNECTICUT WTR SVC INC COM 207797101 1 22 SH   SOLE N/A 22 0 0
CONOCOPHILLIPS COM 20825C104 1 28 SH   SOLE N/A 28 0 0
CONTINENTAL RESOURCES INC COM 212015101 2,226 96,871 SH   SOLE N/A 96,871 0 0
CORE LABORATORIES N V COM N22717107 1 10 SH   SOLE N/A 10 0 0
DANAHER CORP DEL COM 235851102 6 62 SH   SOLE N/A 62 0 0
DCP MIDSTREAM PARTNERS LP COM UT LTD PTN 23311P100 118,379 5,168,489 SH   SOLE N/A 4,798,510 0 369,979
DEVON ENERGY CORP NEW COM 25179M103 10,328 322,765 SH   SOLE N/A 322,765 0 0
DHT HOLDINGS INC SHS NEW Y2065G121 248 30,688 SH   SOLE N/A 30,688 0 0
DIAMONDBACK ENERGY INC COM 25278X109 5,978 89,360 SH   SOLE N/A 89,360 0 0
DOMINION MIDSTREAM PARTNERS COM UT REP LTD 257454108 79,761 2,788,028 SH   SOLE N/A 2,601,477 0 186,551
DOMINION RES INC VA NEW COM 25746U109 7 98 SH   SOLE N/A 98 0 0
DORIAN LPG LTD SHS USD Y2106R110 1,218 103,460 SH   SOLE N/A 103,460 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 32,692 1,464,035 SH   SOLE N/A 1,464,035 0 0
ENBRIDGE ENERGY PARTNERS L P COM 29250R106 267,243 12,520,305 SH   SOLE N/A 11,584,018 0 936,287
ENBRIDGE INC COM 29250N105 100,369 3,024,070 SH   SOLE N/A 3,024,070 0 0
ENERGY TRANSFER EQUITY L P COM UT LTD PTN 29273V100 357,340 29,398,321 SH   SOLE N/A 26,007,276 0 3,391,045
ENERGY TRANSFER PRTNRS L P UNIT LTD PARTN 29273R109 268,603 7,963,323 SH   SOLE N/A 7,963,323 0 0
ENLINK MIDSTREAM LLC COM UNIT REP LTD 29336T100 74,339 5,448,330 SH   SOLE N/A 4,926,374 0 521,956
ENLINK MIDSTREAM PARTNERS LP COM UNIT REP LTD 29336U107 109,579 6,609,082 SH   SOLE N/A 6,609,082 0 0
ENSCO PLC SHS CLASS A G3157S106 0 28 SH   SOLE N/A 28 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 957,199 41,011,262 SH   SOLE N/A 37,419,823 0 3,591,439
EOG RES INC COM 26875P101 32,597 460,479 SH   SOLE N/A 460,479 0 0
EP ENERGY CORP CL A 268785102 659 150,500 SH   SOLE N/A 150,500 0 0
EQT CORP COM 26884L109 17,481 335,338 SH   SOLE N/A 335,338 0 0
EQT GP HLDGS LP COM UNIT REP 26885J103 38,273 2,055,204 SH   SOLE N/A 1,843,600 0 211,604
EQT MIDSTREAM PARTNERS LP UNIT LTD PARTN 26885B100 540,309 7,793,194 SH   SOLE N/A 7,160,204 0 632,990
EXXON MOBIL CORP COM 30231G102 3 35 SH   SOLE N/A 35 0 0
FIRST SOLAR INC COM 336433107 2 36 SH   SOLE N/A 36 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 202,636 6,050,317 SH   SOLE N/A 5,515,411 0 534,906
GULFPORT ENERGY CORP COM NEW 402635304 1,066 43,404 SH   SOLE N/A 43,404 0 0
HALLIBURTON CO COM 406216101 1 17 SH   SOLE N/A 17 0 0
HANNON ARMSTRONG SUST INFR C COM 41068X100 5 243 SH   SOLE N/A 243 0 0
HD SUPPLY HLDGS INC COM 40416M105 2 68 SH   SOLE N/A 68 0 0
HELMERICH & PAYNE INC COM 423452101 1 20 SH   SOLE N/A 20 0 0
HESS CORP COM 42809H107 2,109 43,493 SH   SOLE N/A 43,493 0 0
HOEGH LNG PARTNERS LP COM UNIT LTD Y3262R100 443 23,782 SH   SOLE N/A 23,782 0 0
HOLLY ENERGY PARTNERS L P COM UT LTD PTN 435763107 53,230 1,709,390 SH   SOLE N/A 1,709,390 0 0
HOLLYFRONTIER CORP COM 436106108 1 22 SH   SOLE N/A 22 0 0
IDEX CORP COM 45167R104 2 29 SH   SOLE N/A 29 0 0
INFRAREIT INC COM 45685L100 3,418 184,749 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 2 45 SH   SOLE N/A 45 0 0
JPMORGAN CHASE & CO ALERIAN ML ETN 46625H365 16,888 633,513 SH   SOLE N/A 582,935 0 50,578
KINDER MORGAN INC DEL COM 49456B101 16,001 1,072,423 SH   SOLE N/A 1,072,423 0 0
KINDER MORGAN INC DEL PFD SER A 49456B200 15,446 383,283 SH   SOLE N/A 383,283 0 0
LAREDO PETROLEUM INC COM 516806106 2,374 297,160 SH   SOLE N/A 297,160 0 0
LINDSAY CORP COM 535555106 0 6 SH   SOLE N/A 6 0 0
LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 2,640 30,381 SH   SOLE N/A 30,381 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 978,469 15,836,465 SH   SOLE N/A 14,406,192 0 1,430,273
MEMORIAL RESOURCE DEV CORP COM 58605Q109 71 4,390 SH   SOLE N/A 4,390 0 0
MPLX LP COM UNIT REP LTD 55336V100 677,217 18,870,094 SH   SOLE N/A 17,218,848 0 1,651,246
MRC GLOBAL INC COM 55345K103 1 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 21,162 495,025 SH   SOLE N/A 495,025 0 0
NATIONAL OILWELL VARCO INC COM 637071101 1 19 SH   SOLE N/A 19 0 0
NEWFIELD EXPL CO COM 651290108 10,656 327,280 SH   SOLE N/A 327,280 0 0
NEWPARK RES INC COM PAR $.01NEW 651718504 0 91 SH   SOLE N/A 91 0 0
NEXTERA ENERGY INC COM 65339F101 7 67 SH   SOLE N/A 67 0 0
NEXTERA ENERGY PARTNERS LP COM UNIT PART IN 65341B106 837 28,028 SH   SOLE N/A 28,028 0 0
NISOURCE INC COM 65473P105 52,276 2,679,421 SH   SOLE N/A 2,679,421 0 0
NOBLE ENERGY INC COM 655044105 11,340 344,374 SH   SOLE N/A 344,374 0 0
NORDIC AMERICAN TANKERS LIMI COM G65773106 761 49,000 SH   SOLE N/A 49,000 0 0
NRG ENERGY INC COM NEW 629377508 1 75 SH   SOLE N/A 75 0 0
NRG YIELD INC CL A NEW 62942X405 549 37,171 SH   SOLE N/A 37,171 0 0
NUSTAR ENERGY LP UNIT COM 67058H102 877 21,867 SH   SOLE N/A 21,867 0 0
OCCIDENTAL PETE CORP DEL COM 674599105 16,350 241,822 SH   SOLE N/A 241,822 0 0
ONEOK INC NEW COM 682680103 175,696 7,742,212 SH   SOLE N/A 7,124,725 0 617,487
ONEOK PARTNERS LP UNIT LTD PARTN 68268N103 399,938 14,124,537 SH   SOLE N/A 13,273,750 0 850,787
PATTERN ENERGY GROUP INC CL A 70338P100 3 145 SH   SOLE N/A 145 0 0
PATTERSON UTI ENERGY INC COM 703481101 1 72 SH   SOLE N/A 72 0 0
PDC ENERGY INC COM 69327R101 873 16,357 SH   SOLE N/A 16,357 0 0
PEMBINA PIPELINE CORP COM 706327103 33,356 1,530,837 SH   SOLE N/A 1,530,837 0 0
PENTAIR PLC SHS G7S00T104 2 45 SH   SOLE N/A 45 0 0
PHILLIPS 66 COM 718546104 1,538 18,805 SH   SOLE N/A 18,805 0 0
PHILLIPS 66 PARTNERS LP COM UNIT REP INT 718549207 292,778 5,305,338 SH   SOLE N/A 4,768,369 0 536,969
PINNACLE WEST CAP CORP COM 723484101 1 15 SH   SOLE N/A 15 0 0
PIONEER NAT RES CO COM 723787107 28,582 227,965 SH   SOLE N/A 227,965 0 0
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 688,052 32,738,697 SH   SOLE N/A 29,785,795 0 2,952,902
PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 42,057 4,450,498 SH   SOLE N/A 4,450,498 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
QEP RES INC COM 74733V100 1 68 SH   SOLE N/A 68 0 0
RANGE RES CORP COM 75281A109 5,964 242,336 SH   SOLE N/A 242,336 0 0
RICE MIDSTREAM PARTNERS LP UNIT LTD PARTN 762819100 1,070 79,328 SH   SOLE N/A 79,328 0 0
ROSE ROCK MIDSTREAM L P COM U REP LTD 777149105 489 32,489 SH   SOLE N/A 32,489 0 0
ROYAL DUTCH SHELL PLC SPONS ADR A 780259206 5,243 114,500 SH   SOLE N/A 114,500 0 0
RSP PERMIAN INC COM 74978Q105 3,862 158,328 SH   SOLE N/A 158,328 0 0
SCHLUMBERGER LTD COM 806857108 1,439 20,637 SH   SOLE N/A 20,637 0 0
SEMGROUP CORP CL A 81663A105 21,279 737,308 SH   SOLE N/A 737,308 0 0
SEMPRA ENERGY COM 816851109 955 10,163 SH   SOLE N/A 10,163 0 0
SHELL MIDSTREAM PARTNERS L P UNIT LTD INT 822634101 318,924 8,391,740 SH   SOLE N/A 7,681,211 0 710,529
SOLARCITY CORP COM 83416T100 2 38 SH   SOLE N/A 38 0 0
SPECTRA ENERGY CORP COM 847560109 146,343 6,112,890 SH   SOLE N/A 6,112,890 0 0
SPECTRA ENERGY PARTNERS LP COM 84756N109 718,596 16,336,332 SH   SOLE N/A 15,064,900 0 1,271,432
SUNCOR ENERGY INC NEW COM 867224107 9,189 356,182 SH   SOLE N/A 356,182 0 0
SUNOCO LOGISTICS PRTNRS L P COM UNITS 86764L108 592,417 25,261,521 SH   SOLE N/A 23,051,245 0 2,210,276
SUNPOWER CORP COM 867652406 2 77 SH   SOLE N/A 77 0 0
SUNRUN INC COM 86771W105 2 168 SH   SOLE N/A 168 0 0
SUPERIOR ENERGY SVCS INC COM 868157108 1 47 SH   SOLE N/A 47 0 0
TALLGRASS ENERGY PARTNERS LP COM UNIT 874697105 26,185 635,404 SH   SOLE N/A 635,404 0 0
TARGA RES CORP COM 87612G101 98,672 4,104,080 SH   SOLE N/A 3,646,399 0 457,681
TARGA RESOURCES PARTNERS LP COM UNIT 87611X105 79,365 4,801,295 SH   SOLE N/A 4,801,295 0 0
TERRAFORM PWR INC CL A COM 88104R100 0 31 SH   SOLE N/A 31 0 0
TESLA MTRS INC COM 88160R101 2 8 SH   SOLE N/A 8 0 0
TESORO CORP COM 881609101 2,453 23,282 SH   SOLE N/A 23,282 0 0
TESORO LOGISTICS LP COM UNIT LP 88160T107 461,866 10,106,110 SH   SOLE N/A 9,178,578 0 927,532
TETRA TECH INC NEW COM 88162G103 3 117 SH   SOLE N/A 117 0 0
TETRA TECHNOLOGIES INC DEL COM 88162F105 1 104 SH   SOLE N/A 104 0 0
TRANSCANADA CORP COM 89353D107 87,807 2,694,298 SH   SOLE N/A 2,694,298 0 0
U S SILICA HLDGS INC COM 90346E103 0 21 SH   SOLE N/A 21 0 0
UBS AG JERSEY BRH ALERIAN INFRST 902641646 77 2,950 SH   SOLE N/A 0 0 2,950
VALERO ENERGY CORP NEW COM 91913Y100 2,387 33,753 SH   SOLE N/A 33,753 0 0
VALERO ENERGY PARTNERS LP COM UNT REP LP 91914J102 208,358 4,413,762 SH   SOLE N/A 4,037,163 0 376,599
VTTI ENERGY PARTNERS LP COM UNIT RP LT Y9384M101 13,919 671,461 SH   SOLE N/A 671,461 0 0
WATTS WATER TECHNOLOGIES INC CL A 942749102 3 67 SH   SOLE N/A 67 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 87,131 2,757,697 SH   SOLE N/A 2,400,967 0 356,730
WESTERN GAS PARTNERS LP COM UNIT LP IN 958254104 481,499 11,086,053 SH   SOLE N/A 10,130,414 0 955,639
WESTLAKE CHEM CORP COM 960413102 1,924 35,424 SH   SOLE N/A 35,424 0 0
WHITING PETE CORP NEW COM 966387102 1,387 146,877 SH   SOLE N/A 146,877 0 0
WILLIAMS COS INC DEL COM 969457100 238,334 10,027,768 SH   SOLE N/A 9,273,713 0 754,055
WILLIAMS PARTNERS L P NEW COM UNIT LTD PAR 96949L105 140,956 5,061,252 SH   SOLE N/A 5,061,252 0 0
XYLEM INC COM 98419M100 7 181 SH   SOLE N/A 181 0 0