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
ATLANTICA YIELD PLC SHS G0751N103 10,942 482,700 SH   SOLE 1 482,700 0 0
ATLANTICA YIELD PLC SHS G0751N103 4,117 181,743 SH   SOLE 0 181,743 0 0
BROOKFIELD INFRAST PARTNERS LP INT UNIT G16252101 6,589 153,500 SH   SOLE 0 153,500 0 0
BROOKFIELD RENEWABLE PARTNER PARTNERSHIP UNIT G16258108 14,520 419,800 SH   SOLE 1 419,800 0 0
BROOKFIELD RENEWABLE PARTNER PARTNERSHIP UNIT G16258108 5,449 157,600 SH   SOLE 0 157,600 0 0
GASLOG LTD SHS G37585109 7,134 495,698 SH   SOLE 0 495,698 0 0
AZURE PWR GLOBAL LTD SHS V0393H103 465 44,100 SH   SOLE 0 44,100 0 0
GASLOG PARTNERS LP UNIT LTD PTNRP Y2687W108 36,721 1,729,700 SH   SOLE 1 1,729,700 0 0
GASLOG PARTNERS LP UNIT LTD PTNRP Y2687W108 9,636 454,048 SH   SOLE 0 454,048 0 0
GOLAR LNG PARTNERS LP COM UNIT LPI Y2745C102 7,880 697,390 SH   SOLE 1 697,390 0 0
HOEGH LNG PARTNERS LP COM UNIT LTD Y3262R100 18,377 1,062,263 SH   SOLE 1 1,062,263 0 0
HOEGH LNG PARTNERS LP COM UNIT LTD Y3262R100 4,304 248,800 SH   SOLE 0 248,800 0 0
KNOT OFFSHORE PARTNERS LP COM UNITS Y48125101 42,939 2,249,361 SH   SOLE 1 2,249,361 0 0
KNOT OFFSHORE PARTNERS LP COM UNITS Y48125101 3,326 174,302 SH   SOLE 0 174,302 0 0
ALLIANCE RES PARTNER L P UT LTD PART 01877R108 268 15,800 SH   SOLE 0 15,800 0 0
ALTUS MIDSTREAM CO CL A 02215L100 5,580 1,500,000 SH   SOLE 1 1,500,000 0 0
ALTUS MIDSTREAM CO CL A 02215L100 49,332 13,263,347 SH   SOLE 0 13,263,347 0 0
AMERICAN TOWER CORP NEW COM 03027X100 2,206 10,800 SH   SOLE 0 10,800 0 0
ANDEAVOR LOGISTICS LP COM UNIT LP INT 03350F106 33,392 919,135 SH   SOLE 1 919,135 0 0
ANDEAVOR LOGISTICS LP COM UNIT LP INT 03350F106 1,969 54,327 SH   SOLE 0 54,327 0 0
ANTERO MIDSTREAM CORP COM 03676B102 28,291 2,468,729 SH   SOLE 1 2,468,729 0 0
ANTERO MIDSTREAM CORP COM 03676B102 19,923 1,739,027 SH   SOLE 0 1,739,027 0 0
APOLLO GLOBAL MGMT LLC CL A SHS 037612306 1,010 29,455 SH   SOLE 0 29,455 0 0
APPROACH RESOURCES INC COM 03834A103 1,273 4,390,265 SH   SOLE 0 4,390,265 0 0
ARES CAP CORP COM 04010L103 2,094 116,768 SH   SOLE 0 116,768 0 0
AVANGRID INC COM 05351W103 537 10,650 SH   SOLE 0 10,650 0 0
BP MIDSTREAM PARTNERS LP UNIT LTD PTNR 0556EL109 73,247 4,731,787 SH   SOLE 1 4,731,787 0 0
BP MIDSTREAM PARTNERS LP UNIT LTD PTNR 0556EL109 33,383 2,156,925 SH   SOLE 0 2,156,925 0 0
BARCLAYS BK PLC IPATH B SHRT TRM 06746P621 24,309 935,100 SH   SOLE 0 935,100 0 0
BLACKSTONE GROUP L P COM UNIT LTD 09253U108 4,467 100,600 SH   SOLE 0 100,600 0 0
BROOKFIELD ASSET MGMT INC CL A LTD VT SH 112585104 2,560 53,600 SH   SOLE 0 53,600 0 0
BUCKEYE PARTNERS L P UNIT LTD PARTN 118230101 165,622 4,034,651 SH   SOLE 1 4,034,651 0 0
BUCKEYE PARTNERS L P UNIT LTD PARTN 118230101 39,081 952,229 SH   SOLE 0 952,229 0 0
CHENIERE ENERGY PARTNERS LP COM UNIT 16411Q101 72,954 1,729,612 SH   SOLE 1 1,729,612 0 0
CHENIERE ENERGY PARTNERS LP COM UNIT 16411Q101 41,904 993,610 SH   SOLE 0 993,610 0 0
CHENIERE ENERGY INC COM NEW 16411R208 71,722 1,047,973 SH   SOLE 0 1,047,973 0 0
CLEARBRIDGE ENERGY MIDSTRM O COM 18469P100 2,221 241,500 SH   SOLE 0 241,500 0 0
CLEARBRIDGE MLP AND MIDSTRM COM 18469Q108 1,760 187,800 SH   SOLE 0 187,800 0 0
CLEARBRIDGE MLP AND MIDSTRM COM 184692101 2,335 195,500 SH   SOLE 0 195,500 0 0
CLEARWAY ENERGY INC CL C 18539C204 485 28,800 SH   SOLE 0 28,800 0 0
CRESTWOOD EQUITY PARTNERS LP UNIT LTD PARTNER 226344208 57,411 1,605,039 SH   SOLE 1 1,605,039 0 0
CRESTWOOD EQUITY PARTNERS LP UNIT LTD PARTNER 226344208 15,547 434,793 SH   SOLE 0 434,793 0 0
CROSSAMERICA PARTNERS LP UT LTD PTN INT 22758A105 240 15,000 SH   SOLE 0 15,000 0 0
CROWN CASTLE INTL CORP NEW COM 22822V101 2,168 16,650 SH   SOLE 0 16,650 0 0
THE CUSHING MLP INFASTCR TOT COM NEW 231631201 204 20,000 SH   SOLE 0 20,000 0 0
DCP MIDSTREAM LP COM UT LTD PTN 23311P100 88,699 3,027,292 SH   SOLE 1 3,027,292 0 0
DCP MIDSTREAM LP COM UT LTD PTN 23311P100 11,146 380,624 SH   SOLE 0 380,624 0 0
DIGITAL RLTY TR INC COM 253868103 2,355 20,000 SH   SOLE 0 20,000 0 0
EQT MIDSTREAM PARTNERS LP UNIT LTD PARTN 26885B100 31,053 695,030 SH   SOLE 1 695,030 0 0
EQT MIDSTREAM PARTNERS LP UNIT LTD PARTN 26885B100 42,239 945,551 SH   SOLE 0 945,551 0 0
ENBRIDGE INC COM 29250N105 100,276 2,779,296 SH   SOLE 1 2,779,296 0 0
ENBRIDGE INC COM 29250N105 82,395 2,283,898 SH   SOLE 0 2,283,898 0 0
ENERGY TRANSFER LP COM UT LTD PTN 29273V100 398,286 28,287,512 SH   SOLE 1 28,287,512 0 0
ENERGY TRANSFER LP COM UT LTD PTN 29273V100 197,909 14,056,886 SH   SOLE 0 14,056,886 0 0
ENLINK MIDSTREAM LLC COM UNIT REP LTD 29336T100 76,757 7,607,260 SH   SOLE 1 7,607,260 0 0
ENLINK MIDSTREAM LLC COM UNIT REP LTD 29336T100 7,235 717,545 SH   SOLE 0 717,545 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 532,783 18,454,572 SH   SOLE 1 18,454,572 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 219,135 7,590,810 SH   SOLE 0 7,590,810 0 0
ENVIVA PARTNERS LP COM UNIT 29414J107 14,797 471,039 SH   SOLE 0 471,039 0 0
EQUINIX INC COM 29444U700 3,821 7,580 SH   SOLE 0 7,580 0 0
EQUITRANS MIDSTREAM CORPORAT COM 294600101 4,927 250,000 SH   SOLE 1 250,000 0 0
EQUITRANS MIDSTREAM CORPORAT COM 294600101 2,562 130,000 SH   SOLE 0 130,000 0 0
FIRST TR ENERGY INFRASTRCTR COM 33738C103 1,115 70,000 SH   SOLE 0 70,000 0 0
FIRST TR MLP & ENERGY INCOME COM 33739B104 436 36,800 SH   SOLE 0 36,800 0 0
FST TR NEW OPPORT MLP & ENE COM 33739M100 2,104 222,700 SH   SOLE 0 222,700 0 0
GLOBAL PARTNERS LP COM UNITS 37946R109 35,848 1,800,538 SH   SOLE 1 1,800,538 0 0
GLOBAL PARTNERS LP COM UNITS 37946R109 10,811 543,221 SH   SOLE 0 543,221 0 0
HESS MIDSTREAM PARTNERS LP UNIT LTD PR INT 428104103 12,474 639,707 SH   SOLE 1 639,707 0 0
HESS MIDSTREAM PARTNERS LP UNIT LTD PR INT 428104103 13,092 671,747 SH   SOLE 0 671,747 0 0
INNOVATIVE INDL PPTYS INC COM 45781V101 247 2,000 SH   SOLE 0 2,000 0 0
KKR & CO INC CL A 48251W104 2,260 89,488 SH   SOLE 0 89,488 0 0
KIMBELL RTY PARTNERS LP UNIT 49435R102 11,566 716,200 SH   SOLE 0 716,200 0 0
KINDER MORGAN INC DEL COM 49456B101 84,558 4,049,762 SH   SOLE 1 4,049,762 0 0
KINDER MORGAN INC DEL COM 49456B101 106,704 5,110,862 SH   SOLE 0 5,110,862 0 0
MGM GROWTH PPTYS LLC CL A COM 55303A105 450 14,700 SH   SOLE 0 14,700 0 0
MPLX LP COM UNIT REP LTD 55336V100 174,402 5,417,931 SH   SOLE 1 5,417,931 0 0
MPLX LP COM UNIT REP LTD 55336V100 106,368 3,304,738 SH   SOLE 0 3,304,738 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 224,111 3,501,740 SH   SOLE 1 3,501,740 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 94,413 1,475,309 SH   SOLE 0 1,475,309 0 0
MONTAGE RES CORP COM 61179L100 1,224 200,913 SH   SOLE 0 200,913 0 0
NGL ENERGY PARTNERS LP COM UNIT REPST 62913M107 147 10,000 SH   SOLE 0 10,000 0 0
NATIONAL GRID PLC SPONSORED ADR NE 636274409 292 5,500 SH   SOLE 0 5,500 0 0
NEUBERGER BERMAN MLP AND ENR COM 64129H104 1,750 233,200 SH   SOLE 0 233,200 0 0
NEXTERA ENERGY INC COM 65339F101 990 4,840 SH   SOLE 0 4,840 0 0
NEXTERA ENERGY PARTNERS LP COM UNIT PART IN 65341B106 22,900 474,722 SH   SOLE 0 474,722 0 0
NUVEEN ENERGY MLP TOTAL RTRNF COM 67074U103 1,189 130,644 SH   SOLE 0 130,644 0 0
NUVEEN ALL CAP ENE MLP OPPO COM 67075E108 525 85,000 SH   SOLE 0 85,000 0 0
ONEOK INC NEW COM 682680103 373,255 5,424,452 SH   SOLE 1 5,424,452 0 0
ONEOK INC NEW COM 682680103 171,331 2,490,058 SH   SOLE 0 2,490,058 0 0
PATTERN ENERGY GROUP INC CL A 70338P100 1,434 62,200 SH   SOLE 0 62,200 0 0
PEMBINA PIPELINE CORP COM 706327103 74,352 1,998,200 SH   SOLE 1 1,998,200 0 0
PEMBINA PIPELINE CORP COM 706327103 88,852 2,388,130 SH   SOLE 0 2,388,130 0 0
PHILLIPS 66 COM 718546104 3,722 39,800 SH   SOLE 1 39,800 0 0
PHILLIPS 66 COM 718546104 26,585 284,300 SH   SOLE 0 284,300 0 0
PHILLIPS 66 PARTNERS LP COM UNIT REP INT 718549207 83,959 1,701,309 SH   SOLE 1 1,701,309 0 0
PHILLIPS 66 PARTNERS LP COM UNIT REP INT 718549207 54,396 1,102,437 SH   SOLE 0 1,102,437 0 0
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 201,147 8,260,668 SH   SOLE 1 8,260,668 0 0
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 39,003 1,601,961 SH   SOLE 0 1,601,961 0 0
PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 55,066 2,205,319 SH   SOLE 1 2,205,319 0 0
PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 125,125 5,011,400 SH   SOLE 0 5,011,400 0 0
RATTLER MIDSTREAM LP COM UNITS 75419T103 14,541 750,000 SH   SOLE 1 750,000 0 0
RATTLER MIDSTREAM LP COM UNITS 75419T103 949 49,000 SH   SOLE 0 49,000 0 0
SALIENT MIDSTREAM & MLP FD SH BEN INT 79471V105 1,084 126,300 SH   SOLE 0 126,300 0 0
SEMGROUP CORP CL A 81663A105 1,044 87,000 SH   SOLE 0 87,000 0 0
SEMPRA ENERGY COM 816851109 4,810 35,000 SH   SOLE 1 35,000 0 0
SEMPRA ENERGY COM 816851109 4,520 32,900 SH   SOLE 0 32,900 0 0
SHELL MIDSTREAM PARTNERS L P UNIT LTD INT 822634101 146,288 7,060,298 SH   SOLE 1 7,060,298 0 0
SHELL MIDSTREAM PARTNERS L P UNIT LTD INT 822634101 66,512 3,210,457 SH   SOLE 0 3,210,457 0 0
SPRAGUE RES LP COM UNIT REP LTD 849343108 310 17,500 SH   SOLE 0 17,500 0 0
SUNOCO LP COM UT REP LP 86765K109 466 14,900 SH   SOLE 0 14,900 0 0
SUNRUN INC COM 86771W105 415 22,150 SH   SOLE 0 22,150 0 0
TC PIPELINES LP UT COM LTD PRT 87233Q108 9,540 253,597 SH   SOLE 1 253,597 0 0
TPG SPECIALTY LENDING INC COM 87265K102 909 46,422 SH   SOLE 0 46,422 0 0
TALLGRASS ENERGY LP CLASS A SHS 874696107 95,845 4,540,312 SH   SOLE 1 4,540,312 0 0
TALLGRASS ENERGY LP CLASS A SHS 874696107 50,282 2,382,392 SH   SOLE 0 2,382,392 0 0
TARGA RES CORP COM 87612G101 192,253 4,896,939 SH   SOLE 1 4,896,939 0 0
TARGA RES CORP COM 87612G101 74,615 1,900,732 SH   SOLE 0 1,900,732 0 0
TC ENERGY CORP COM 87807B107 97,038 1,959,600 SH   SOLE 1 1,959,600 0 0
TC ENERGY CORP COM 87807B107 56,913 1,149,505 SH   SOLE 0 1,149,505 0 0
TERRAFORM PWR INC COM CL A 88104R209 1,873 131,100 SH   SOLE 0 131,100 0 0
TORTOISE PWR & ENERGY INFRAS COM 89147X104 688 37,600 SH   SOLE 0 37,600 0 0
TORTOISE PIPELINE & ENERGY F COM 89148H108 1,666 116,000 SH   SOLE 0 116,000 0 0
VIPER ENERGY PARTNERS LP COM UNT RP INT 92763M105 6,093 197,700 SH   SOLE 1 197,700 0 0
VIPER ENERGY PARTNERS LP COM UNT RP INT 92763M105 11,426 370,854 SH   SOLE 0 370,854 0 0
VIVINT SOLAR INC COM 92854Q106 346 47,500 SH   SOLE 0 47,500 0 0
WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 216,453 7,034,617 SH   SOLE 1 7,034,617 0 0
WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 80,258 2,608,670 SH   SOLE 0 2,608,670 0 0
WILLIAMS COS INC DEL COM 969457100 394,593 14,072,549 SH   SOLE 1 14,072,549 0 0
WILLIAMS COS INC DEL COM 969457100 183,996 6,562,304 SH   SOLE 0 6,562,304 0 0
XCEL ENERGY INC COM 98389B100 536 9,025 SH   SOLE 0 9,025 0 0