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 1,331 71,501 SH   SOLE N/A 71,501 0 0
ABENGOA SA SP ADR REP B 00289R201 1 86 SH   SOLE N/A 86 0 0
ABENGOA YIELD PLC ORD SHS G00349103 1,438 45,900 SH   SOLE N/A 45,900 0 0
ACUITY BRANDS INC COM 00508Y102 5 27 SH   SOLE N/A 27 0 0
AMERICAN WTR WKS CO INC NEW COM 030420103 5 98 SH   SOLE N/A 98 0 0
ANADARKO PETE CORP COM 032511107 32,136 411,686 SH   SOLE N/A 411,686 0 0
ANTERO MIDSTREAM PARTNERS LP UNT LTD PARTN 03673L103 225,141 7,861,056 SH   SOLE N/A 7,181,922 0 679,134
ANTERO RES CORP COM 03674X106 6,328 184,286 SH   SOLE N/A 184,286 0 0
APACHE CORP COM 037411105 1 14 SH   SOLE N/A 14 0 0
AQUA AMERICA INC COM 03836W103 1 38 SH   SOLE N/A 38 0 0
ASPEN AEROGELS INC COM 04523Y105 0 21 SH   SOLE N/A 21 0 0
ATWOOD OCEANICS INC COM 050095108 1 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 2,892 46,864 SH   SOLE N/A 46,864 0 0
BIOAMBER INC COM 09072Q106 0 58 SH   SOLE N/A 58 0 0
BP PLC SPONSORED ADR 055622104 3,852 96,400 SH   SOLE N/A 96,400 0 0
BUCKEYE PARTNERS L P UNIT LTD PARTN 118230101 802,501 10,854,875 SH   SOLE N/A 10,027,734 0 827,141
C&J ENERGY SVCS INC COM 12467B304 1 89 SH   SOLE N/A 89 0 0
CABOT OIL & GAS CORP COM 127097103 8,510 269,818 SH   SOLE N/A 269,818 0 0
CALPINE CORP COM NEW 131347304 1 79 SH   SOLE N/A 79 0 0
CAMERON INTERNATIONAL CORP COM 13342B105 1 20 SH   SOLE N/A 20 0 0
CANADIAN SOLAR INC COM 136635109 1 33 SH   SOLE N/A 33 0 0
CARRIZO OIL & GAS INC COM 144577103 11,356 230,629 SH   SOLE N/A 230,629 0 0
CENOVUS ENERGY INC COM 15135U109 2,453 153,200 SH   SOLE N/A 153,200 0 0
CENTERPOINT ENERGY INC COM 15189T107 4,819 253,253 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 45,170 652,174 SH   SOLE N/A 652,174 0 0
CHESAPEAKE ENERGY CORP COM 165167107 3,033 271,509 SH   SOLE N/A 271,509 0 0
CHEVRON CORP NEW COM 166764100 2 18 SH   SOLE N/A 18 0 0
CIMAREX ENERGY CO COM 171798101 12,012 108,894 SH   SOLE N/A 108,894 0 0
CMS ENERGY CORP COM 125896100 2 49 SH   SOLE N/A 49 0 0
COLUMBIA PIPELINE PARTNERS L COM UT REPSTG 198281107 153,272 6,082,230 SH   SOLE N/A 5,664,075 0 418,155
CONCHO RES INC COM 20605P101 15,875 139,429 SH   SOLE N/A 139,429 0 0
CONNECTICUT WTR SVC INC COM 207797101 1 22 SH   SOLE N/A 22 0 0
CONOCOPHILLIPS COM 20825C104 2 28 SH   SOLE N/A 28 0 0
CONTINENTAL RESOURCES INC COM 212015101 4,470 105,440 SH   SOLE N/A 105,440 0 0
CORE LABORATORIES N V COM N22717107 1 8 SH   SOLE N/A 8 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 192,562 6,274,420 SH   SOLE N/A 5,819,662 0 454,758
DEVON ENERGY CORP NEW COM 25179M103 7,603 127,809 SH   SOLE N/A 127,809 0 0
DHT HOLDINGS INC SHS NEW Y2065G121 253 32,534 SH   SOLE N/A 32,534 0 0
DIAMONDBACK ENERGY INC COM 25278X109 5,935 78,740 SH   SOLE N/A 78,740 0 0
DOMINION MIDSTREAM PARTNERS COM UT REP LTD 257454108 101,238 2,642,605 SH   SOLE N/A 2,474,832 0 167,773
DOMINION RES INC VA NEW COM 25746U109 5 70 SH   SOLE N/A 70 0 0
DORIAN LPG LTD SHS USD Y2106R110 1,170 70,117 SH   SOLE N/A 70,117 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 5 43 SH   SOLE N/A 43 0 0
EDISON INTL COM 281020107 2 31 SH   SOLE N/A 31 0 0
ENBRIDGE ENERGY MANAGEMENT L SHS UNITS LLI 29250X103 47,087 1,426,869 SH   SOLE N/A 1,426,869 0 0
ENBRIDGE ENERGY PARTNERS L P COM 29250R106 536,870 16,107,713 SH   SOLE N/A 14,936,136 0 1,171,577
ENBRIDGE INC COM 29250N105 199,615 4,266,186 SH   SOLE N/A 4,266,186 0 0
ENCANA CORP COM 292505104 3,336 302,703 SH   SOLE N/A 302,703 0 0
ENERGEN CORP COM 29265N108 5,368 78,596 SH   SOLE N/A 78,596 0 0
ENERGY TRANSFER EQUITY L P COM UT LTD PTN 29273V100 928,414 14,468,038 SH   SOLE N/A 12,899,974 0 1,568,064
ENERGY TRANSFER PRTNRS L P UNIT LTD PARTN 29273R109 450,812 8,636,241 SH   SOLE N/A 8,636,241 0 0
ENERPLUS CORP COM 292766102 2,424 275,800 SH   SOLE N/A 275,800 0 0
ENLINK MIDSTREAM PARTNERS LP COM UNIT REP LTD 29336U107 201,151 9,155,705 SH   SOLE N/A 8,788,784 0 366,921
ENLINK MIDSTREAM LLC COM UNIT REP LTD 29336T100 81,690 2,627,534 SH   SOLE N/A 2,458,204 0 169,330
ENPHASE ENERGY INC COM 29355A107 1 67 SH   SOLE N/A 67 0 0
ENSCO PLC SHS CLASS A G3157S106 1 28 SH   SOLE N/A 28 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 1,212,321 40,559,431 SH   SOLE N/A 37,315,350 0 3,244,081
EOG RES INC COM 26875P101 40,204 459,216 SH   SOLE N/A 459,216 0 0
EP ENERGY CORP CL A 268785102 2,526 198,417 SH   SOLE N/A 198,417 0 0
EQT CORP COM 26884L109 23,088 283,844 SH   SOLE N/A 283,844 0 0
EQT GP HLDGS LP COM UNIT REP 26885J103 64,770 1,905,548 SH   SOLE N/A 1,725,375 0 180,173
EQT MIDSTREAM PARTNERS LP UNIT LTD PARTN 26885B100 496,284 6,086,385 SH   SOLE N/A 5,624,060 0 462,325
EXTERRAN HLDGS INC COM 30225X103 1 35 SH   SOLE N/A 35 0 0
EXXON MOBIL CORP COM 30231G102 1 15 SH   SOLE N/A 15 0 0
FIRST SOLAR INC COM 336433107 2 40 SH   SOLE N/A 40 0 0
FMC TECHNOLOGIES INC COM 30249U101 1 27 SH   SOLE N/A 27 0 0
FMSA HLDGS INC COM 30255X106 0 51 SH   SOLE N/A 51 0 0
FORUM ENERGY TECHNOLOGIES IN COM 34984V100 1 41 SH   SOLE N/A 41 1 0
FRANKS INTL N V COM N33462107 1 48 SH   SOLE N/A 48 2 0
GENESIS ENERGY L P UNIT LTD PARTN 371927104 239,603 5,459,168 SH   SOLE N/A 4,977,624 0 481,544
HALLIBURTON CO COM 406216101 1 17 SH   SOLE N/A 17 0 0
HANNON ARMSTRONG SUST INFR C COM 41068X100 4 191 SH   SOLE N/A 191 0 0
HD SUPPLY HLDGS INC COM 40416M105 2 68 SH   SOLE N/A 68 0 0
HELMERICH & PAYNE INC COM 423452101 454 6,448 SH   SOLE N/A 6,448 0 0
HESS CORP COM 42809H107 3,023 45,193 SH   SOLE N/A 45,193 0 0
HOEGH LNG PARTNERS LP COM UNIT LTD Y3262R100 786 41,136 SH   SOLE N/A 41,136 0 0
HOLLY ENERGY PARTNERS L P COM UT LTD PTN 435763107 101,427 2,886,383 SH   SOLE N/A 2,886,383 0 0
IDEX CORP COM 45167R104 2 29 SH   SOLE N/A 29 0 0
INFRAREIT INC COM 45685L100 5,240 184,782 SH   SOLE N/A 184,782 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 252,574 6,579,169 SH   SOLE N/A 6,579,169 0 0
LAREDO PETROLEUM INC COM 516806106 3,915 311,170 SH   SOLE N/A 311,170 0 0
LINDSAY CORP COM 535555106 1 6 SH   SOLE N/A 6 0 0
LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,331 32,176 SH   SOLE N/A 32,176 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 1,226,131 16,709,341 SH   SOLE N/A 15,343,887 0 1,365,454
MARATHON OIL CORP COM 565849106 14,989 564,769 SH   SOLE N/A 564,769 0 0
MARATHON PETE CORP COM 56585A102 1,334 25,504 SH   SOLE N/A 25,504 0 0
MARKWEST ENERGY PARTNERS L P UNIT LTD PARTN 570759100 685,940 12,166,373 SH   SOLE N/A 11,268,066 0 898,307
MAXWELL TECHNOLOGIES INC COM 577767106 1 122 SH   SOLE N/A 122 0 0
MPLX LP COM UNIT REP LTD 55336V100 416,344 5,832,776 SH   SOLE N/A 5,375,738 0 457,038
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 32,336 549,084 SH   SOLE N/A 549,084 0 0
NATIONAL OILWELL VARCO INC COM 637071101 1 13 SH   SOLE N/A 13 0 0
NEWFIELD EXPL CO COM 651290108 11,463 317,364 SH   SOLE N/A 317,364 0 0
NEWPARK RES INC COM PAR $.01NEW 651718504 1 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 3,912 98,726 SH   SOLE N/A 98,726 0 0
NISOURCE INC COM 65473P105 222,620 4,883,091 SH   SOLE N/A 4,883,091 0 0
NOBLE CORP PLC SHS USD G65431101 1 44 SH   SOLE N/A 44 0 0
NOBLE ENERGY INC COM 655044105 11,334 265,559 SH   SOLE N/A 265,559 0 0
NORDIC AMERICAN TANKERS LIMI COM G65773106 229 16,095 SH   SOLE N/A 16,095 0 0
NRG ENERGY INC COM NEW 629377508 836 36,543 SH   SOLE N/A 36,543 0 0
NRG YIELD INC CL C 62942X405 4,556 208,133 SH   SOLE N/A 208,133 0 0
NUSTAR ENERGY LP UNIT COM 67058H102 75,585 1,273,546 SH   SOLE N/A 1,273,546 0 0
OCCIDENTAL PETE CORP DEL COM 674599105 19,853 255,278 SH   SOLE N/A 255,278 0 0
ONE GAS INC COM 68235P108 2 53 SH   SOLE N/A 53 0 0
ONEOK PARTNERS LP UNIT LTD PARTN 68268N103 350,024 10,294,811 SH   SOLE N/A 9,917,900 0 376,911
ONEOK INC NEW COM 682680103 226,922 5,747,766 SH   SOLE N/A 5,386,504 0 361,262
PATTERN ENERGY GROUP INC CL A 70338P100 2 80 SH   SOLE N/A 80 0 0
PATTERSON UTI ENERGY INC COM 703481101 228 12,122 SH   SOLE N/A 12,122 0 0
PBF ENERGY INC CL A 69318G106 1 20 SH   SOLE N/A 20 0 0
PEMBINA PIPELINE CORP COM 706327103 62,308 1,927,740 SH   SOLE N/A 1,927,740 0 0
PENN WEST PETE LTD NEW COM 707887105 11 6,400 SH   SOLE N/A 6,400 0 0
PENTAIR PLC SHS G7S00T104 4 54 SH   SOLE N/A 54 0 0
PHILLIPS 66 COM 718546104 2,387 29,627 SH   SOLE N/A 29,627 0 0
PHILLIPS 66 PARTNERS LP COM UNIT REP INT 718549207 277,176 3,849,672 SH   SOLE N/A 3,525,835 0 323,837
PINNACLE WEST CAP CORP COM 723484101 1 15 SH   SOLE N/A 15 0 0
PIONEER NAT RES CO COM 723787107 33,034 238,183 SH   SOLE N/A 238,183 0 0
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 1,146,266 26,308,598 SH   SOLE N/A 24,293,726 0 2,014,872
PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 245,405 9,497,115 SH   SOLE N/A 8,906,193 0 590,922
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
QUESTAR CORP COM 748356102 1 25 SH   SOLE N/A 25 0 0
RANGE RES CORP COM 75281A109 12,341 249,911 SH   SOLE N/A 249,911 0 0
ROSE ROCK MIDSTREAM L P COM U REP LTD 777149105 1,519 32,489 SH   SOLE N/A 32,489 0 0
ROYAL DUTCH SHELL PLC SPONS ADR A 780259206 6,528 114,500 SH   SOLE N/A 114,500 0 0
RPC INC COM 749660106 1 73 SH   SOLE N/A 73 0 0
RSP PERMIAN INC COM 74978Q105 4,115 146,374 SH   SOLE N/A 146,374 0 0
SCHLUMBERGER LTD COM 806857108 901 10,454 SH   SOLE N/A 10,454 0 0
SEMGROUP CORP CL A 81663A105 46,535 585,491 SH   SOLE N/A 585,491 0 0
SEMPRA ENERGY COM 816851109 5 51 SH   SOLE N/A 51 0 0
SHELL MIDSTREAM PARTNERS L P UNIT LTD INT 822634101 256,266 5,639,130 SH   SOLE N/A 5,256,661 0 382,469
SOLARCITY CORP COM 83416T100 6 112 SH   SOLE N/A 112 0 0
SPECTRA ENERGY CORP COM 847560109 334,324 10,255,336 SH   SOLE N/A 9,851,529 0 403,807
SPECTRA ENERGY PARTNERS LP COM 84756N109 500,194 10,850,185 SH   SOLE N/A 10,268,324 0 581,861
SUMMIT MIDSTREAM PARTNERS LP COM UNIT LTD 866142102 17,596 532,573 SH   SOLE N/A 532,573 0 0
SUNCOR ENERGY INC NEW COM 867224107 10,397 377,812 SH   SOLE N/A 377,812 0 0
SUNEDISON INC COM 86732Y109 932 31,174 SH   SOLE N/A 31,174 0 0
SUNOCO LOGISTICS PRTNRS L P COM UNITS 86764L108 727,896 19,140,051 SH   SOLE N/A 17,675,405 0 1,464,646
SUNPOWER CORP COM 867652406 5 174 SH   SOLE N/A 174 0 0
SUPERIOR ENERGY SVCS INC COM 868157108 1 55 SH   SOLE N/A 55 0 0
TALLGRASS ENERGY PARTNERS LP COM UNIT 874697105 28,308 588,772 SH   SOLE N/A 588,772 0 0
TARGA RESOURCES PARTNERS LP COM UNIT 87611X105 200,073 5,183,236 SH   SOLE N/A 5,183,236 0 0
TARGA RES CORP COM 87612G101 316,090 3,542,818 SH   SOLE N/A 3,194,663 0 348,155
TEEKAY OFFSHORE PARTNERS L P PARTNERSHIP UN Y8565J101 4,518 223,330 SH   SOLE N/A 223,330 0 0
TERRAFORM PWR INC CL A COM 88104R100 10,076 265,294 SH   SOLE N/A 265,294 0 0
TESLA MTRS INC COM 88160R101 6 22 SH   SOLE N/A 22 0 0
TESORO LOGISTICS LP COM UNIT LP 88160T107 481,504 8,429,699 SH   SOLE N/A 7,745,851 0 683,848
TETRA TECH INC NEW COM 88162G103 1 39 SH   SOLE N/A 39 0 0
TETRA TECHNOLOGIES INC DEL COM 88162F105 1 104 SH   SOLE N/A 104 0 0
TRANSCANADA CORP COM 89353D107 126,988 3,126,250 SH   SOLE N/A 3,126,250 0 0
U S SILICA HLDGS INC COM 90346E103 457 15,565 SH   SOLE N/A 15,565 0 0
VALERO ENERGY CORP NEW COM 91913Y100 2,213 35,345 SH   SOLE N/A 35,345 0 0
VALERO ENERGY PARTNERS LP COM UNT REP LP 91914J102 184,758 3,617,036 SH   SOLE N/A 3,317,610 0 299,426
VTTI ENERGY PARTNERS LP COM UNIT RP LT Y9384M101 13,934 556,487 SH   SOLE N/A 556,487 0 0
WATTS WATER TECHNOLOGIES INC CL A 942749102 2 48 SH   SOLE N/A 48 0 0
WEATHERFORD INTL PLC ORD SHS G48833100 1 50 SH   SOLE N/A 50 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 135,665 2,261,077 SH   SOLE N/A 1,988,859 0 272,218
WESTERN GAS PARTNERS LP COM UNIT LP IN 958254104 573,589 9,051,436 SH   SOLE N/A 8,413,101 0 638,335
WESTLAKE CHEM CORP COM 960413102 1,769 25,797 SH   SOLE N/A 25,797 0 0
WHITING PETE CORP NEW COM 966387102 5,280 157,150 SH   SOLE N/A 157,150 0 0
WILLIAMS COS INC DEL COM 969457100 459,732 8,010,672 SH   SOLE N/A 7,477,148 0 533,524
WILLIAMS PARTNERS L P NEW COM UNIT LTD PAR 96949L105 287,364 5,933,588 SH   SOLE N/A 5,933,588 0 0
XYLEM INC COM 98419M100 4 109 SH   SOLE N/A 109 0 0