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
ALLIANCE RES PARTNER L P UT LTD PART 01877R108 28,560 1,400,000 SH   DFND 1 1,400,000 0 0
ALPS ETF TR ALERIAN MLP 00162Q866 229 21,459 SH   SOLE 21,459 0 0
ANADARKO PETE CORP COM 032511107 455 6,750 SH   SOLE 6,750 0 0
ANTERO MIDSTREAM GP LP COM SHS REPSTG 03675Y103 47,296 2,795,243 SH   DFND 1 2 2,795,243 0 0
ANTERO MIDSTREAM PARTNERS LP UNT LTD PARTN 03673L103 69,246 2,416,136 SH   DFND 1 2 2,416,136 0 0
ANTERO RES CORP COM 03674X106 5,229 295,284 SH   DFND 1 295,284 0 0
APERGY CORP COM 03755L104 3,431 78,760 SH   DFND 1 78,760 0 0
ATLANTICA YIELD PLC SHS G0751N103 7,257 352,615 SH   SOLE 352,615 0 0
AVANGRID INC COM 05351W103 2,162 45,114 SH   SOLE 45,114 0 0
BP PLC SPONSORED ADR 055622104 11,503 249,520 SH   DFND 1 249,520 0 0
C&J ENERGY SVCS INC NEW COM 12674R100 3,095 148,808 SH   DFND 1 148,808 0 0
CABOT OIL & GAS CORP COM 127097103 6,586 292,445 SH   DFND 1 292,445 0 0
CANADIAN NAT RES LTD COM 136385101 875 26,805 SH   DFND 1 26,805 0 0
CATERPILLAR INC DEL COM 149123101 1,830 12,000 SH   SOLE 12,000 0 0
CENTENNIAL RESOURCE DEV INC CL A 15136A102 1,121 51,316 SH   DFND 1 51,316 0 0
CHENIERE ENERGY INC COM NEW 16411R208 89,710 1,290,972 SH   DFND 1 1,290,972 0 0
CHENIERE ENERGY PARTNERS LP COM UNIT 16411Q101 6,277 159,085 SH   DFND 2 159,085 0 0
CHEVRON CORP NEW COM 166764100 2,826 23,110 SH   DFND 1 23,110 0 0
CLEARWAY ENERGY INC CL C 18539C204 10,645 552,992 SH   SOLE 552,992 0 0
CNX MIDSTREAM PARTNERS LP COM UNIT REPST 12654A101 54,557 2,834,104 SH   DFND 1 2,834,104 0 0
COLFAX CORP COM 194014106 13,979 387,657 SH   DFND 1 387,657 0 0
CRESTWOOD EQUITY PARTNERS LP UNIT LTD PARTNER 226344208 45,206 1,230,100 SH   DFND 1 1,230,100 0 0
CVR ENERGY INC COM 12662P108 13,165 327,313 SH   DFND 1 327,313 0 0
DASEKE INC COM 23753F107 1,915 238,735 SH   DFND 1 238,735 0 0
DCP MIDSTREAM LP COM UT LTD PTN 23311P100 101,823 2,571,946 SH   DFND 1 2 2,571,946 0 0
DEERE & CO COM 244199105 4,988 33,178 SH   DFND 1 33,178 0 0
DELEK US HLDGS INC NEW COM 24665A103 2,750 64,819 SH   DFND 1 64,819 0 0
DELEK US HLDGS INC NEW COM 24665A103 2 48,000 SH   SOLE 48,000 0 0
DEVON ENERGY CORP NEW COM 25179M103 7,179 179,747 SH   DFND 1 179,747 0 0
DOMINION ENERGY INC COM 25746U109 7,900 112,405 SH   SOLE 112,405 0 0
DOMINION ENERGY MIDSTRM PRTN COM UT REP LTD 257454108 5,287 295,377 SH   SOLE 295,377 0 0
DOWDUPONT INC COM 26078J100 3,055 47,500 SH   SOLE 47,500 0 0
EATON CORP PLC SHS G29183103 10,922 125,930 SH   DFND 1 125,930 0 0
EMERSON ELEC CO COM 291011104 2,840 37,080 SH   DFND 1 37,080 0 0
ENABLE MIDSTREAM PARTNERS LP COM UNIT RP IN 292480100 44,546 2,645,265 SH   DFND 1 2 2,645,265 0 0
ENBRIDGE INC COM 29250N105 5,115 158,400 SH   SOLE 158,400 0 0
ENERGY TRANSFER EQUITY L P COM UT LTD PTN 29273V100 100,737 5,779,526 SH   DFND 1 2 5,779,526 0 0
ENERGY TRANSFER PARTNERS LP UNIT LTD PRT INT 29278N103 282,665 12,698,328 SH   DFND 1 2 12,698,328 0 0
ENLINK MIDSTREAM LLC COM UNIT REP LTD 29336T100 54,492 3,312,558 SH   DFND 1 2 3,312,558 0 0
ENLINK MIDSTREAM PARTNERS LP COM UNIT REP LTD 29336U107 100,048 5,367,395 SH   DFND 1 2 5,367,395 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 214,177 7,454,829 SH   DFND 1 2 7,454,829 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 153 1,328,000 SH   SOLE 1,328,000 0 0
EOG RES INC COM 26875P101 3,781 29,636 SH   DFND 1 29,636 0 0
EQT CORP COM 26884L109 3,857 87,200 SH   SOLE 87,200 0 0
EQT GP HLDGS LP COM UNIT REP 26885J103 29,356 1,409,305 SH   DFND 1 2 1,409,305 0 0
EQT MIDSTREAM PARTNERS LP UNIT LTD PARTN 26885B100 58,517 1,108,705 SH   DFND 1 2 1,108,705 0 0
EXTRACTION OIL AND GAS INC COM 30227M105 4,417 391,223 SH   DFND 1 391,223 0 0
GARDNER DENVER HLDGS INC COM 36555P107 3,350 118,206 SH   DFND 1 118,206 0 0
GASLOG PARTNERS LP UNIT LTD PTNRP Y2687W108 13,144 525,755 SH   DFND 1 525,755 0 0
GOLAR LNG LTD BERMUDA SHS G9456A100 11,150 401,070 SH   DFND 1 401,070 0 0
GOLAR LNG PARTNERS LP COM UNIT LPI Y2745C102 28,089 1,960,124 SH   DFND 1 1,960,124 0 0
HOLLYFRONTIER CORP COM 436106108 9,851 140,923 SH   DFND 1 140,923 0 0
JACOBS ENGR GROUP INC DEL COM 469814107 7,387 96,559 SH   DFND 1 96,559 0 0
JAGGED PEAK ENERGY INC COM 47009K107 1,672 120,876 SH   DFND 1 120,876 0 0
JPMORGAN CHASE FINL CO LLC CUSHING MLP 37 48129G703 3,969 210,000 SH   SOLE 210,000 0 0
KAYNE ANDERSON ACQUISITION COM CL A 48661U102 7,654 753,321 SH   SOLE 753,321 0 0
KEANE GROUP INC COM 48669A108 4,168 336,977 SH   DFND 1 336,977 0 0
KINDER MORGAN INC DEL COM 49456B101 207,897 11,725,704 SH   DFND 1 2 11,725,704 0 0
KINDER MORGAN INC DEL PFD SER A 49456B200 2,095 63,000 SH   DFND 1 63,000 0 0
KIRBY CORP COM 497266106 4,310 52,403 SH   DFND 1 52,403 0 0
KNIGHT SWIFT TRANSN HLDGS IN CL A 499049104 8,766 254,238 SH   DFND 1 254,238 0 0
LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 9,663 94,267 SH   DFND 1 94,267 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 52,032 768,337 SH   DFND 1 2 768,337 0 0
MARATHON PETE CORP COM 56585A102 5,627 70,360 SH   SOLE 70,360 0 0
MCDERMOTT INTL INC COM 580037703 3,979 215,909 SH   DFND 1 215,909 0 0
MPLX LP COM UNIT REP LTD 55336V100 150,869 4,350,306 SH   DFND 1 2 4,350,306 0 0
NAVISTAR INTL CORP NEW COM 63934E108 1,453 37,745 SH   DFND 1 37,745 0 0
NEWFIELD EXPL CO COM 651290108 4,824 167,320 SH   DFND 1 167,320 0 0
NEXTERA ENERGY INC COM 65339F101 3,228 19,258 SH   SOLE 19,258 0 0
NEXTERA ENERGY PARTNERS LP COM UNIT PART IN 65341B106 97,943 2,019,446 SH   DFND 1 2 2,019,446 0 0
NGL ENERGY PARTNERS LP COM UNIT REPST 62913M107 22,360 1,927,610 SH   DFND 1 1,927,610 0 0
NOBLE ENERGY INC COM 655044105 2,371 76,033 SH   DFND 1 76,033 0 0
NOBLE MIDSTREAM PARTNERS LP COM UNIT REPST 65506L105 49,034 1,384,744 SH   DFND 1 1,384,744 0 0
NUSTAR ENERGY LP UNIT COM 67058H102 22,240 800,000 SH   DFND 1 800,000 0 0
OCCIDENTAL PETE CORP DEL COM 674599105 2,425 29,507 SH   DFND 1 29,507 0 0
ONEOK INC NEW COM 682680103 177,265 2,614,917 SH   DFND 1 2 2,614,917 0 0
OSHKOSH CORP COM 688239201 3,909 54,867 SH   DFND 1 54,867 0 0
PARKER HANNIFIN CORP COM 701094104 2,732 14,856 SH   DFND 1 14,856 0 0
PARSLEY ENERGY INC CL A 701877102 8,812 301,248 SH   DFND 1 301,248 0 0
PATTERSON UTI ENERGY INC COM 703481101 2,750 160,729 SH   DFND 1 160,729 0 0
PEMBINA PIPELINE CORP COM 706327103 56,359 1,658,096 SH   DFND 1 1,658,096 0 0
PHILLIPS 66 COM 718546104 8,605 76,340 SH   SOLE 76,340 0 0
PHILLIPS 66 PARTNERS LP COM UNIT REP INT 718549207 88,198 1,724,637 SH   DFND 1 2 1,724,637 0 0
PIONEER NAT RES CO COM 723787107 2,708 15,548 SH   DFND 1 15,548 0 0
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 102,441 4,095,992 SH   DFND 1 2 4,095,992 0 0
PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 58,786 2,396,494 SH   DFND 1 2,396,494 0 0
PPL CORP COM 69351T106 9,519 325,317 SH   DFND 1 325,317 0 0
QUANTA SVCS INC COM 74762E102 5,509 165,034 SH   DFND 1 165,034 0 0
ROCKWELL AUTOMATION INC COM 773903109 2,765 14,744 SH   DFND 1 14,744 0 0
ROSEHILL RES INC CL A 777385105 76 12,460 SH   DFND 1 12,460 0 0
ROYAL DUTCH SHELL PLC SPONS ADR A 780259206 9,702 142,378 SH   DFND 1 142,378 0 0
RUSH ENTERPRISES INC CL A 781846209 2,513 63,919 SH   DFND 1 63,919 0 0
SANCHEZ MIDSTREAM PARTNERS L COM UNITS REP B 79971C201 142 20,000 SH   SOLE 20,000 0 0
SEMGROUP CORP CL A 81663A105 5,764 261,405 SH   SOLE 261,405 0 0
SHELL MIDSTREAM PARTNERS L P UNIT LTD INT 822634101 35,287 1,650,489 SH   DFND 1 2 1,650,489 0 0
SOUTHWEST AIRLS CO COM 844741108 2,062 33,012 SH   DFND 1 33,012 0 0
STANLEY BLACK & DECKER INC COM 854502101 3,139 21,437 SH   DFND 1 21,437 0 0
SUMMIT MIDSTREAM PARTNERS LP COM UNIT LTD 866142102 16,847 1,178,085 SH   DFND 1 2 1,178,085 0 0
SUNCOR ENERGY INC NEW COM 867224107 3,603 93,130 SH   DFND 1 93,130 0 0
SUNOCO LP COM U REP LP 86765K109 6,797 230,000 SH   SOLE 230,000 0 0
TALLGRASS ENERGY LP CLASS A SHS 874696107 60,818 2,579,222 SH   DFND 1 2 2,579,222 0 0
TARGA RES CORP COM 87612G101 172,175 3,057,626 SH   DFND 1 2 3,057,626 0 0
TECHNIPFMC PLC COM G87110105 5,618 179,777 SH   DFND 1 179,777 0 0
TELLURIAN INC NEW COM 87968A104 5,892 656,821 SH   DFND 1 656,821 0 0
TOTAL S A SPONSORED ADR 89151E109 3,197 49,658 SH   DFND 1 49,658 0 0
TRANSCANADA CORP COM 89353D107 8,367 206,800 SH   SOLE 206,800 0 0
TRANSMONTAIGNE PARTNERS L P COM UNIT L P 89376V100 373 9,700 SH   SOLE 9,700 0 0
TRINITY INDS INC COM 896522109 2,729 74,486 SH   DFND 1 74,486 0 0
UNION PAC CORP COM 907818108 4,209 25,848 SH   DFND 1 25,848 0 0
UNITED RENTALS INC COM 911363109 10,829 66,189 SH   DFND 1 66,189 0 0
VALERO ENERGY CORP NEW COM 91913Y100 9,697 85,249 SH   DFND 1 85,249 0 0
VENATOR MATLS PLC SHS G9329Z100 4,512 501,322 SH   DFND 1 501,322 0 0
VERMILION ENERGY INC COM 923725105 9,264 281,225 SH   DFND 1 281,225 0 0
VIPER ENERGY PARTNERS LP COM UNT RP INT 92763M105 12,291 291,954 SH   DFND 1 291,954 0 0
VULCAN MATLS CO COM 929160109 3,767 33,879 SH   DFND 1 33,879 0 0
WEATHERFORD INTL PLC ORD SHS G48833100 2,836 1,046,334 SH   DFND 1 1,046,334 0 0
WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 29,660 990,634 SH   DFND 1 990,634 0 0
WESTERN GAS PARTNERS LP COM UNIT LP IN 958254104 45,550 1,042,808 SH   DFND 1 2 1,042,808 0 0
WESTLAKE CHEM CORP COM 960413102 4,115 49,517 SH   DFND 1 49,517 0 0
WHITING PETE CORP NEW COM NEW 966387409 3,658 68,973 SH   DFND 1 68,973 0 0
WILLIAMS COS INC DEL COM 969457100 185,002 6,804,040 SH   DFND 1 2 6,804,040 0 0
WPX ENERGY INC COM 98212B103 1,328 66,000 SH   DFND 1 66,000 0 0
XPO LOGISTICS INC COM 983793100 11,238 98,430 SH   DFND 1 98,430 0 0
XYLEM INC COM 98419M100 8,329 104,287 SH   DFND 1 104,287 0 0