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
ACUITY BRANDS INC COM 00508Y102 2,889 20,753 SH   DFND 1 20,753 0 0
AECOM COM 00766T100 3,724 104,515 SH   DFND 1 104,515 0 0
AEGEAN MARINE PETROLEUM NETW SHS Y0017S102 87 38,809 SH   DFND 1 38,809 0 0
ALBEMARLE CORP COM 012653101 4,715 50,838 SH   DFND 1 50,838 0 0
ALLEGHENY TECHNOLOGIES INC COM 01741R102 3,624 153,055 SH   DFND 1 153,055 0 0
ALPS ETF TR ALERIAN MLP 00162Q866 8,098 864,244 SH   SOLE 864,244 0 0
AMERICAN AIRLS GROUP INC COM 02376R102 3,386 65,170 SH   DFND 1 65,170 0 0
AMERICAN MIDSTREAM PARTNERS COM UNITS 02752P100 24,973 2,312,308 SH   DFND 1 2,312,308 0 0
ANADARKO PETE CORP COM 032511107 408 6,750 SH   SOLE 6,750 0 0
ANDEAVOR LOGISTICS LP COM UNIT LP INT 03350f106 93,392 2,084,179 SH   DFND 1 2 2,084,179 0 0
ANTERO MIDSTREAM GP LP COM SHS REPSTG 03675Y103 44,379 2,775,443 SH   DFND 1 2 2,775,443 0 0
ANTERO MIDSTREAM PARTNERS LP UNT LTD PARTN 03673L103 2,925 112,974 SH   DFND 2 112,974 0 0
ANTERO RES CORP COM 03674X106 337 17,000 SH   SOLE 17,000 0 0
ATLANTICA YIELD PLC SHS G0751N103 1,618 82,615 SH   SOLE 82,615 0 0
AVANGRID INC COM 05351W103 1,793 35,079 SH   SOLE 35,079 0 0
AXALTA COATING SYS LTD COM G0750C108 2,767 91,660 SH   DFND 1 91,660 0 0
BASIC ENERGY SVCS INC NEW COM NEW 06985P209 2,413 167,125 SH   DFND 1 167,125 0 0
BLUEKNIGHT ENERGY PARTNERS L COM UNIT 09625U109 9,185 2,161,200 SH   DFND 1 2,161,200 0 0
BOARDWALK PIPELINE PARTNERS UT LTD PARTNER 096627104 44,481 4,382,322 SH   DFND 1 2 4,382,322 0 0
BOEING CO COM 097023105 10,444 31,853 SH   DFND 1 31,853 0 0
BP PLC SPONSORED ADR 055622104 10,470 258,258 SH   DFND 1 258,258 0 0
BROOKFIELD RENEWABLE PARTNER PARTNERSHIP UNIT G16258108 1,656 53,191 SH   SOLE 53,191 0 0
C&J ENERGY SVCS INC NEW COM 12674R100 5,986 231,849 SH   DFND 1 231,849 0 0
CALLON PETE CO DEL COM 13123X102 6,307 476,388 SH   DFND 1 476,388 0 0
CANADIAN NAT RES LTD COM 136385101 2,628 83,500 SH   DFND 1 83,500 0 0
CENTENNIAL RESOURCE DEV INC CL A 15136A102 3,320 180,930 SH   DFND 1 180,930 0 0
CHENIERE ENERGY INC COM NEW 16411R208 62,197 1,163,649 SH   DFND 1 1,163,649 0 0
CHENIERE ENERGY PARTNERS LP COM UNIT 16411Q101 2,328 80,000 SH   SOLE 80,000 0 0
CHENIERE ENERGY PTNRS LP HLD COM REP LLC IN 16411W108 2,892 104,750 SH   SOLE 104,750 0 0
CHEVRON CORP NEW COM 166764100 2,965 26,000 SH   DFND 1 26,000 0 0
CIMAREX ENERGY CO COM 171798101 1,122 12,000 SH   DFND 1 12,000 0 0
CONCHO RES INC COM 20605P101 2,465 16,400 SH   DFND 1 16,400 0 0
COVENANT TRANSN GROUP INC CL A 22284P105 7,186 240,889 SH   DFND 1 240,889 0 0
CRESTWOOD EQUITY PARTNERS LP UNIT LTD PARTNER 226344208 39,552 1,545,000 SH   DFND 1 1,545,000 0 0
CSX CORP COM 126408103 3,079 55,275 SH   DFND 1 55,275 0 0
CVR ENERGY INC COM 12662P108 2,720 90,000 SH   SOLE 90,000 0 0
DASEKE INC COM 23753F107 8,173 834,872 SH   DFND 1 834,872 0 0
DCP MIDSTREAM LP COM UT LTD PTN 23311P100 68,395 1,947,474 SH   DFND 1 2 1,947,474 0 0
DEVON ENERGY CORP NEW COM 25179M103 2,960 93,120 SH   DFND 1 93,120 0 0
DOMINION ENERGY INC COM 25746U109 5,253 77,905 SH   SOLE 77,905 0 0
DOMINION ENERGY MIDSTRM PRTN COM UT REP LTD 257454108 11,098 723,007 SH   DFND 1 2 723,007 0 0
DOVER CORP COM 260003108 2,456 25,000 SH   SOLE 25,000 0 0
DOWDUPONT INC COM 26078J100 4,141 65,000 SH   SOLE 65,000 0 0
EMERSON ELEC CO COM 291011104 12,751 186,690 SH   DFND 1 186,690 0 0
ENABLE MIDSTREAM PARTNERS LP COM UNIT RP IN 292480100 36,329 2,647,865 SH   DFND 1 2 2,647,865 0 0
ENBRIDGE ENERGY PARTNERS L P COM 29250R106 21,015 2,180,000 SH   DFND 1 2,180,000 0 0
ENBRIDGE INC COM 29250N105 4,245 134,900 SH   SOLE 134,900 0 0
ENERGY TRANSFER EQUITY L P COM UT LTD PTN 29273V100 105,236 7,405,797 SH   DFND 1 2 7,405,797 0 0
ENERGY TRANSFER PARTNERS LP UNIT LTD PRT INT 29278N103 206,185 12,711,755 SH   DFND 1 2 12,711,755 0 0
ENLINK MIDSTREAM LLC COM UNIT REP LTD 29336T100 33,295 2,272,725 SH   DFND 1 2,272,725 0 0
ENLINK MIDSTREAM PARTNERS LP COM UNIT REP LTD 29336U107 54,488 3,988,867 SH   DFND 1 2 3,988,867 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 232 664,000 SH Call SOLE 664,000 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 155,190 6,339,461 SH   DFND 1 2 6,339,461 0 0
EOG RES INC COM 26875P101 3,120 29,636 SH   DFND 1 29,636 0 0
EQT CORP COM 26884L109 6,552 137,900 SH   SOLE 137,900 0 0
EQT GP HLDGS LP COM UNIT REP 26885J103 31,818 1,378,589 SH   DFND 1 2 1,378,589 0 0
EQT MIDSTREAM PARTNERS LP UNIT LTD PARTN 26885B100 31,533 534,186 SH   DFND 1 2 534,186 0 0
EXELON CORP COM 30161N101 3,862 99,000 SH   SOLE 99,000 0 0
EXTRACTION OIL AND GAS INC COM 30227M105 3,320 289,731 SH   DFND 1 289,731 0 0
FIRSTENERGY CORP COM 337932107 4,761 140,000 SH   SOLE 140,000 0 0
GASLOG PARTNERS LP UNIT LTD PTNRP Y2687W108 16,600 712,464 SH   DFND 1 712,464 0 0
GOLAR LNG LTD BERMUDA SHS G9456A100 16,979 620,591 SH   DFND 1 620,591 0 0
GOLAR LNG PARTNERS LP COM UNIT LPI Y2745C102 37,460 2,189,350 SH   DFND 1 2,189,350 0 0
GRANITE CONSTR INC COM 387328107 1,934 34,615 SH   DFND 1 34,615 0 0
HIGHPOINT RES CORP COM 43114K108 315 62,000 SH   SOLE 62,000 0 0
HOLLYFRONTIER CORP COM 436106108 3,298 67,500 SH   SOLE 67,500 0 0
HUB GROUP INC CL A 443320106 7,186 171,715 SH   DFND 1 171,715 0 0
HUNTSMAN CORP COM 447011107 1,828 62,500 SH   SOLE 62,500 0 0
JACOBS ENGR GROUP INC DEL COM 469814107 11,568 195,563 SH   DFND 1 195,563 0 0
JPMORGAN CHASE FINL CO LLC CUSHING MLP 37 48129G703 5,986 359,200 SH   SOLE 359,200 0 0
KEANE GROUP INC COM 48669A108 7,622 514,967 SH   DFND 1 514,967 0 0
KINDER MORGAN INC DEL COM 49456B101 75,472 5,011,404 SH   DFND 1 2 5,011,404 0 0
KINDER MORGAN INC DEL PFD SER A 49456B200 1,959 63,000 SH   DFND 1 63,000 0 0
KNIGHT SWIFT TRANSN HLDGS IN CL A 499049104 11,429 248,411 SH   DFND 1 248,411 0 0
LIBERTY OILFIELD SVCS INC COM CL A 53115L104 1,769 104,739 SH   DFND 1 104,739 0 0
LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 4,167 39,435 SH   SOLE 39,435 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 58,903 1,009,469 SH   DFND 1 2 1,009,469 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 711 342,000 SH Call SOLE 342,000 0 0
MARATHON PETE CORP COM 56585A102 2,474 33,845 SH   SOLE 33,845 0 0
MARTIN MARIETTA MATLS INC COM 573284106 3,563 17,187 SH   DFND 1 17,187 0 0
MPLX LP COM UNIT REP LTD 55336V100 127,195 3,849,720 SH   DFND 1 2 3,849,720 0 0
MRC GLOBAL INC COM 55345K103 2,843 172,949 SH   DFND 1 172,949 0 0
NCS MULTISTAGE HLDGS INC COM 628877102 1,804 120,239 SH   DFND 1 120,239 0 0
NEWFIELD EXPL CO COM 651290108 4,867 199,288 SH   DFND 1 199,288 0 0
NEXTERA ENERGY INC COM 65339F101 2,737 16,758 SH   SOLE 16,758 0 0
NEXTERA ENERGY PARTNERS LP COM UNIT PART IN 65341B106 34,315 858,081 SH   DFND 1 858,081 0 0
NGL ENERGY PARTNERS LP COM UNIT REPST 62913M107 52,846 4,804,180 SH   DFND 1 4,804,180 0 0
NOBLE MIDSTREAM PARTNERS LP COM UNIT REPST 65506L105 29,318 628,743 SH   DFND 1 628,743 0 0
NRG YIELD INC CL C 62942X405 6,718 395,197 SH   SOLE 395,197 0 0
ONEOK INC NEW COM 682680103 123,675 2,172,791 SH   DFND 1 2 2,172,791 0 0
PARSLEY ENERGY INC CL A 701877102 9,608 331,419 SH   DFND 1 331,419 0 0
PBF ENERGY INC CL A 69318G106 3,390 100,000 SH   SOLE 100,000 0 0
PEMBINA PIPELINE CORP COM 706327103 3,042 97,400 SH   SOLE 97,400 0 0
PHILLIPS 66 COM 718546104 6,555 68,335 SH   SOLE 68,335 0 0
PHILLIPS 66 PARTNERS LP COM UNIT REP INT 718549207 67,797 1,418,950 SH   DFND 1 2 1,418,950 0 0
PIONEER NAT RES CO COM 723787107 2,671 15,548 SH   DFND 1 15,548 0 0
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 100,852 4,577,933 SH   DFND 1 2 4,577,933 0 0
PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 64,613 2,970,710 SH   DFND 1 2,970,710 0 0
PRECISION DRILLING CORP COM 2010 74022D308 104 37,500 SH   SOLE 37,500 0 0
PROPETRO HLDG CORP COM 74347M108 2,912 183,287 SH   DFND 1 183,287 0 0
QUANTA SVCS INC COM 74762E102 6,498 189,164 SH   DFND 1 189,164 0 0
RICE MIDSTREAM PARTNERS LP UNIT LTD PARTN 762819100 4,766 263,300 SH   SOLE 263,300 0 0
ROCKWELL AUTOMATION INC COM 773903109 4,732 27,165 SH   DFND 1 27,165 0 0
ROYAL DUTCH SHELL PLC SPONS ADR A 780259206 11,390 178,500 SH   DFND 1 178,500 0 0
RSP PERMIAN INC COM 74978Q105 2,469 52,659 SH   DFND 1 52,659 0 0
SANCHEZ MIDSTREAM PARTNERS L COM UNITS REP B 79971C201 207 20,000 SH   SOLE 20,000 0 0
SCHLUMBERGER LTD COM 806857108 1,943 30,000 SH   SOLE 30,000 0 0
SELECT ENERGY SVCS INC CL A COM 81617J301 2,917 231,122 SH   DFND 1 231,122 0 0
SEMGROUP CORP CL A 81663A105 34,425 1,608,655 SH   DFND 1 2 1,608,655 0 0
SEMPRA ENERGY COM 816851109 1,722 15,485 SH   SOLE 15,485 0 0
SHELL MIDSTREAM PARTNERS L P UNIT LTD INT 822634101 62,776 2,982,224 SH   DFND 1 2 2,982,224 0 0
SOUTHWEST AIRLS CO COM 844741108 5,848 102,088 SH   DFND 1 102,088 0 0
SPECTRA ENERGY PARTNERS LP COM 84756N109 8,040 239,000 SH   DFND 1 239,000 0 0
SPIRIT AIRLS INC COM 848577102 2,924 77,385 SH   DFND 1 77,385 0 0
STANLEY BLACK & DECKER INC COM 854502101 3,005 19,617 SH   DFND 1 19,617 0 0
STATOIL ASA SPONSORED ADR 85771P102 4,286 181,237 SH   DFND 1 181,237 0 0
SUMMIT MIDSTREAM PARTNERS LP COM UNIT LTD 866142102 20,613 1,467,122 SH   DFND 1 2 1,467,122 0 0
SUNCOR ENERGY INC NEW COM 867224107 6,378 184,658 SH   DFND 1 184,658 0 0
SUNOCO LP COM U REP LP 86765K109 3,571 140,000 SH   SOLE 140,000 0 0
TALLGRASS ENERGY GP LP SHS CL A 874696107 951 50,000 SH   SOLE 50,000 0 0
TALLGRASS ENERGY PARTNERS LP COM UNIT 874697105 4,354 114,900 SH   SOLE 114,900 0 0
TARGA RES CORP COM 87612G101 161,367 3,667,431 SH   DFND 1 2 3,667,431 0 0
TECHNIPFMC PLC COM G87110105 4,647 157,794 SH   DFND 1 157,794 0 0
TELLURIAN INC NEW COM 87968A104 4,496 623,634 SH   DFND 1 623,634 0 0
TOTAL S A SPONSORED ADR 89151E109 3,536 61,300 SH   DFND 1 61,300 0 0
TRANSCANADA CORP COM 89353D107 6,378 154,400 SH   SOLE 154,400 0 0
TRANSMONTAIGNE PARTNERS L P COM UNIT L P 89376V100 347 9,700 SH   SOLE 9,700 0 0
TRINITY INDS INC COM 896522109 3,465 106,177 SH   DFND 1 106,177 0 0
U S CONCRETE INC COM NEW 90333L201 3,071 50,852 SH   DFND 1 50,852 0 0
UNITED RENTALS INC COM 911363109 11,237 65,058 SH   DFND 1 65,058 0 0
UNITED STATES STL CORP NEW COM 912909108 1,888 53,663 SH   DFND 1 53,663 0 0
UNIVAR INC COM 91336L107 4,689 168,968 SH   DFND 1 168,968 0 0
VALERO ENERGY CORP NEW COM 91913Y100 4,082 44,000 SH   SOLE 44,000 0 0
VALERO ENERGY PARTNERS LP COM UNT REP LP 91914J102 23,420 661,030 SH   DFND 1 661,030 0 0
VIPER ENERGY PARTNERS LP COM UNT RP INT 92763M105 407 16,000 SH   SOLE 16,000 0 0
VULCAN MATLS CO COM 929160109 3,658 32,037 SH   DFND 1 32,037 0 0
WEATHERFORD INTL PLC ORD SHS G48833100 3,712 1,621,144 SH   DFND 1 1,621,144 0 0
WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 29,807 899,976 SH   DFND 1 899,976 0 0
WESTERN GAS PARTNERS LP COM UNIT LP IN 958254104 64,901 1,521,002 SH   DFND 1 2 1,521,002 0 0
WILLIAMS COS INC DEL COM 969457100 48,695 1,958,758 SH   DFND 1 1,958,758 0 0
WILLIAMS PARTNERS L P NEW COM UNIT LTD PAR 96949L105 123,694 3,592,629 SH   DFND 1 2 3,592,629 0 0
WPX ENERGY INC COM 98212B103 975 66,000 SH   DFND 1 66,000 0 0
XPO LOGISTICS INC COM 983793100 13,523 132,827 SH   DFND 1 132,827 0 0