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
AECOM COM 00766T100 7,673 237,323 SH   DFND 1 237,323 0 0
AK STL HLDG CORP COM 001547108 4,952 753,706 SH   DFND 1 753,706 0 0
ALLIANCE HOLDINGS GP LP COM UNITS LP 01861G100 551 23,250 SH   SOLE 23,250 0 0
AMERICAN MIDSTREAM PARTNERS COM UNITS 02752P100 28,631 2,228,081 SH   DFND 1 2,228,081 0 0
ANADARKO PETE CORP COM 032511107 4,127 91,023 SH   DFND 1 91,023 0 0
ANTERO MIDSTREAM GP LP COM SHS REPSTG 03675Y103 29,832 1,357,234 SH   DFND 1 1,357,234 0 0
ANTERO MIDSTREAM PARTNERS LP UNT LTD PARTN 03673L103 28,279 852,278 SH   DFND 1 852,278 0 0
ANTERO RES CORP COM 03674X106 1,275 59,000 SH   DFND 1 59,000 0 0
BLUEKNIGHT ENERGY PARTNERS L COM UNIT 09625U109 17,239 2,758,200 SH   DFND 1 2,758,200 0 0
BOARDWALK PIPELINE PARTNERS UT LTD PARTNER 096627104 7,355 408,400 SH   SOLE 408,400 0 0
BP PLC SPONSORED ADR 055622104 9,122 263,258 SH   DFND 1 263,258 0 0
BUCKEYE PARTNERS L P UNIT LTD PARTN 118230101 7,483 117,050 SH   DFND 2 117,050 0 0
C&J ENERGY SVCS INC NEW COM 12674R100 8,358 243,883 SH   DFND 1 243,883 0 0
CALLON PETE CO DEL COM 13123X102 8,700 819,969 SH   DFND 1 819,969 0 0
CALLON PETE CO DEL COM 13123X102 2 30,300 SH Call SOLE 30,300 0 0
CANADIAN NAT RES LTD COM 136385101 1,269 44,000 SH   DFND 1 44,000 0 0
CENTENNIAL RESOURCE DEV INC CL A 15136A102 8,963 566,543 SH   DFND 1 566,543 0 0
CHENIERE ENERGY INC COM NEW 16411R208 47,939 984,162 SH   DFND 1 984,162 0 0
CHENIERE ENERGY PARTNERS LP COM UNIT 16411Q101 6,480 200,000 SH   SOLE 200,000 0 0
CHEVRON CORP NEW COM 166764100 4,131 39,600 SH   DFND 1 39,600 0 0
CIMAREX ENERGY CO COM 171798101 5,141 54,689 SH   DFND 1 54,689 0 0
CONCHO RES INC COM 20605P101 7,480 61,549 SH   DFND 1 61,549 0 0
CONE MIDSTREAM PARTNERS LP COM UNIT REPST 206812109 330 17,400 SH   SOLE 17,400 0 0
CONTINENTAL RESOURCES INC COM 212015101 206 6,375 SH   SOLE 6,375 0 0
COVENANT TRANSN GROUP INC CL A 22284P105 7,829 446,632 SH   DFND 1 446,632 0 0
CRESTWOOD EQUITY PARTNERS LP UNIT LTD PARTNER 226344208 45,616 1,941,100 SH   DFND 1 1,941,100 0 0
CSX CORP COM 126408103 16,910 309,945 SH   DFND 1 309,945 0 0
CVR ENERGY INC COM 12662P108 2,176 100,000 SH   SOLE 100,000 0 0
DCP MIDSTREAM LP COM UT LTD PTN 23311P100 77,443 2,289,187 SH   DFND 1 2 2,289,187 0 0
DEVON ENERGY CORP NEW COM 25179M103 5,696 178,158 SH   DFND 1 178,158 0 0
DIAMONDBACK ENERGY INC COM 25278X109 5,740 64,634 SH   DFND 1 64,634 0 0
DOMINION ENERGY MIDSTRM PRTN COM UT REP LTD 257454108 42,603 1,476,690 SH   DFND 1 2 1,476,690 0 0
DOVER CORP COM 260003108 18,293 228,033 SH   DFND 1 228,033 0 0
DOW CHEM CO COM 260543103 1,577 25,000 SH   SOLE 25,000 0 0
EATON CORP PLC SHS G29183103 5,101 65,543 SH   DFND 1 65,543 0 0
ENABLE MIDSTREAM PARTNERS LP COM UNIT RP IN 292480100 48,884 3,066,741 SH   DFND 1 2 3,066,741 0 0
ENBRIDGE ENERGY PARTNERS L P COM 29250R106 6,845 427,800 SH   DFND 1 427,800 0 0
ENERGEN CORP COM 29265N108 5,877 119,035 SH   DFND 1 119,035 0 0
ENERGY TRANSFER EQUITY L P COM UT LTD PTN 29273V100 133,723 7,445,575 SH   DFND 1 2 7,445,575 0 0
ENERGY TRANSFER PARTNERS LP UNIT LTD PRT INT 29278N103 13,440 659,167 SH   DFND 1 2 659,167 0 0
ENLINK MIDSTREAM LLC COM UNIT REP LTD 29336T100 26,768 1,520,928 SH   DFND 1 1,520,928 0 0
ENLINK MIDSTREAM PARTNERS LP COM UNIT REP LTD 29336U107 64,941 3,829,050 SH   DFND 1 3,829,050 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 149,007 5,502,463 SH   DFND 1 2 5,502,463 0 0
EOG RES INC COM 26875P101 2,864 31,636 SH   DFND 1 31,636 0 0
EQT GP HLDGS LP COM UNIT REP 26885J103 33,687 1,117,322 SH   DFND 1 2 1,117,322 0 0
EQT MIDSTREAM PARTNERS LP UNIT LTD PARTN 26885B100 67,335 902,252 SH   DFND 1 2 902,252 0 0
EXELON CORP COM 30161N101 2,106 58,400 SH   SOLE 58,400 0 0
EXTRACTION OIL AND GAS INC COM 30227M105 3,872 287,885 SH   DFND 1 287,885 0 0
FIRSTENERGY CORP COM 337932107 1,458 50,000 SH   SOLE 50,000 0 0
FLOWSERVE CORP COM 34354P105 3,894 83,865 SH   DFND 1 83,865 0 0
GASLOG LTD SHS G37585109 4,826 316,429 SH   DFND 1 316,429 0 0
GASLOG PARTNERS LP UNIT LTD PTNRP Y2687W108 30,101 1,328,944 SH   DFND 1 1,328,944 0 0
GENESEE & WYO INC CL A 371559105 4,385 64,112 SH   DFND 1 64,112 0 0
GENESIS ENERGY L P UNIT LTD PARTN 371927104 79,676 2,511,069 SH   DFND 1 2 2,511,069 0 0
GOLAR LNG LTD BERMUDA SHS G9456A100 17,422 783,006 SH   DFND 1 783,006 0 0
GOLAR LNG PARTNERS LP COM UNIT LPI Y2745C102 39,247 1,955,500 SH   DFND 1 1,955,500 0 0
GRACE W R & CO DEL NEW COM 38388F108 2,412 33,500 SH   SOLE 33,500 0 0
GRANITE CONSTR INC COM 387328107 7,768 161,029 SH   DFND 1 161,029 0 0
HALLIBURTON CO COM 406216101 12,292 287,796 SH   DFND 1 287,796 0 0
HESS MIDSTREAM PARTNERS LP UNIT LTD PR INT 428104103 2,527 124,040 SH   SOLE 124,040 0 0
HI-CRUSH PARTNERS LP COM UNIT LTD 428337109 5,298 488,280 SH   DFND 1 488,280 0 0
INDEPENDENCE CONTRACT DRIL I COM 453415309 405 104,013 SH   DFND 1 104,013 0 0
JACOBS ENGR GROUP INC DEL COM 469814107 13,507 248,332 SH   DFND 1 248,332 0 0
JPMORGAN CHASE FINL CO LLC CUSHING MLP 37 48129G703 4,114 200,000 SH   SOLE 200,000 0 0
KEANE GROUP INC COM 48669A108 5,177 323,560 SH   DFND 1 323,560 0 0
KIMBELL RTY PARTNERS LP UNIT 49435R102 246 14,613 SH   SOLE 14,613 0 0
KINDER MORGAN INC DEL COM 49456B101 39,659 2,069,873 SH   DFND 1 2 2,069,873 0 0
KINDER MORGAN INC DEL PFD SER A 49456B200 2,764 63,000 SH   DFND 1 63,000 0 0
LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 3,286 38,940 SH   SOLE 38,940 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 55,248 775,194 SH   DFND 1 2 775,194 0 0
MARATHON PETE CORP COM 56585A102 22,494 429,854 SH   DFND 1 429,854 0 0
MPLX LP COM UNIT REP LTD 55336V100 147,989 4,430,822 SH   DFND 1 2 4,430,822 0 0
MRC GLOBAL INC COM 55345K103 9,116 551,844 SH   DFND 1 551,844 0 0
NABORS INDUSTRIES LTD SHS G6359F103 183 22,500 SH   SOLE 22,500 0 0
NCS MULTISTAGE HLDGS INC COM 628877102 1,555 61,738 SH   DFND 1 61,738 0 0
NEWFIELD EXPL CO COM 651290108 8,051 282,872 SH   DFND 1 282,872 0 0
NEXTERA ENERGY PARTNERS LP COM UNIT PART IN 65341B106 20,875 564,350 SH   SOLE 564,350 0 0
NGL ENERGY PARTNERS LP COM UNIT REPST 62913M107 65,254 4,661,028 SH   DFND 1 4,661,028 0 0
NOBLE CORP PLC SHS USD G65431101 63 17,500 SH   SOLE 17,500 0 0
NRG YIELD INC CL A NEW 62942X306 3,960 225,000 SH   SOLE 225,000 0 0
NUSTAR ENERGY LP UNIT COM 67058H102 60,246 1,292,009 SH   DFND 1 2 1,292,009 0 0
OASIS PETE INC NEW COM 674215108 250 31,000 SH   SOLE 31,000 0 0
OLIN CORP COM PAR $1 680665205 757 25,000 SH   SOLE 25,000 0 0
ONEOK INC NEW COM 682680103 33,464 641,570 SH   DFND 1 641,570 0 0
ONEOK PARTNERS LP UNIT LTD PARTN 68268N103 62,811 1,229,900 SH   DFND 1 2 1,229,900 0 0
PARSLEY ENERGY INC CL A 701877102 10,240 369,007 SH   DFND 1 369,007 0 0
PATTERSON UTI ENERGY INC COM 703481101 1 18,000 SH Call SOLE 18,000 0 0
PBF ENERGY INC CL A 69318G106 4,452 200,000 SH   SOLE 200,000 0 0
PBF LOGISTICS LP UNIT LTD PTNR 69318Q104 973 49,900 SH   SOLE 49,900 0 0
PHILLIPS 66 COM 718546104 17,348 209,793 SH   DFND 1 209,793 0 0
PHILLIPS 66 PARTNERS LP COM UNIT REP INT 718549207 80,159 1,622,000 SH   DFND 1 2 1,622,000 0 0
PIONEER ENERGY SVCS CORP COM 723664108 226 110,000 SH   SOLE 110,000 0 0
PIONEER NAT RES CO COM 723787107 14,934 93,582 SH   DFND 1 93,582 0 0
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 49,793 1,895,424 SH   DFND 1 2 1,895,424 0 0
PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 26,081 996,994 SH   DFND 1 996,994 0 0
PROPETRO HLDG CORP COM 74347M108 4,375 313,401 SH   DFND 1 313,401 0 0
QUANTA SVCS INC COM 74762E102 6,413 194,798 SH   DFND 1 194,798 0 0
RANGE RES CORP COM 75281A109 2,062 89,000 SH   DFND 1 89,000 0 0
RICE ENERGY INC COM 762760106 3,089 116,000 SH   DFND 1 116,000 0 0
RICE MIDSTREAM PARTNERS LP UNIT LTD PARTN 762819100 24,413 1,224,328 SH   DFND 1 1,224,328 0 0
ROYAL DUTCH SHELL PLC SPONS ADR A 780259206 12,643 237,700 SH   DFND 1 237,700 0 0
RSP PERMIAN INC COM 74978Q105 13,136 407,069 SH   DFND 1 407,069 0 0
SANCHEZ MIDSTREAM PARTNERS L COM UNITS REP B 79971C201 3,819 297,200 SH   SOLE 297,200 0 0
SCHLUMBERGER LTD COM 806857108 1,975 30,000 SH   SOLE 30,000 0 0
SELECT ENERGY SVCS INC CL A COM 81617J301 5,430 446,880 SH   DFND 1 446,880 0 0
SELECT SECTOR SPDR TR SBI INT-INDS 81369Y704 45 75,000 SH Put SOLE 75,000 0 0
SEMGROUP CORP CL A 81663A105 39,870 1,476,652 SH   DFND 1 2 1,476,652 0 0
SHELL MIDSTREAM PARTNERS L P UNIT LTD INT 822634101 104,722 3,456,182 SH   DFND 1 2 3,456,182 0 0
SPDR SERIES TRUST BLMBRG BR 1 3 MT 78464A680 44 70,000 SH Call SOLE 70,000 0 0
SPECTRA ENERGY PARTNERS LP COM 84756N109 19,056 444,200 SH   DFND 1 444,200 0 0
STAR BULK CARRIERS CORP SHS PAR Y8162K204 20 16,500 SH Put SOLE 16,500 0 0
STATOIL ASA SPONSORED ADR 85771P102 3,742 226,400 SH   DFND 1 226,400 0 0
SUBURBAN PROPANE PARTNERS L UNIT LTD PARTN 864482104 17,491 735,204 SH   DFND 1 735,204 0 0
SUMMIT MIDSTREAM PARTNERS LP COM UNIT LTD 866142102 38,907 1,717,760 SH   DFND 1 2 1,717,760 0 0
SUNCOR ENERGY INC NEW COM 867224107 2,384 81,658 SH   DFND 1 81,658 0 0
SUNOCO LP COM U REP LP 86765K109 2,143 70,000 SH   SOLE 70,000 0 0
SUPERIOR ENERGY SVCS INC COM 868157108 156 15,000 SH   SOLE 15,000 0 0
SWIFT TRANSN CO CL A 87074U101 9,579 361,486 SH   DFND 1 361,486 0 0
TALLGRASS ENERGY GP LP SHS CL A 874696107 8,776 345,100 SH   SOLE 345,100 0 0
TALLGRASS ENERGY PARTNERS LP COM UNIT 874697105 39,143 781,450 SH   DFND 1 781,450 0 0
TARGA RES CORP COM 87612G101 155 100,000 SH Call SOLE 100,000 0 0
TARGA RES CORP COM 87612G101 139,948 3,096,201 SH   DFND 1 2 3,096,201 0 0
TC PIPELINES LP UT COM LTD PRT 87233Q108 6,287 114,300 SH   SOLE 114,300 0 0
TESORO CORP COM 881609101 6,924 73,975 SH   SOLE 73,975 0 0
TESORO LOGISTICS LP COM UNIT LP 88160T107 105,132 2,033,899 SH   DFND 1 2 2,033,899 0 0
TOTAL S A SPONSORED ADR 89151E109 3,382 68,200 SH   DFND 1 68,200 0 0
TRANSMONTAIGNE PARTNERS L P COM UNIT L P 89376V100 2,465 58,700 SH   SOLE 58,700 0 0
UNITED RENTALS INC COM 911363109 14,217 126,142 SH   DFND 1 126,142 0 0
UNITED STATES STL CORP NEW COM 912909108 3,020 136,414 SH   DFND 1 136,414 0 0
UNIVAR INC COM 91336L107 3,905 133,744 SH   DFND 1 133,744 0 0
VALERO ENERGY CORP NEW COM 91913Y100 4,452 66,000 SH   SOLE 66,000 0 0
VALERO ENERGY PARTNERS LP COM UNT REP LP 91914J102 35,876 786,071 SH   DFND 1 786,071 0 0
WEATHERFORD INTL PLC ORD SHS G48833100 2,819 728,299 SH   DFND 1 728,299 0 0
WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 33,328 774,715 SH   DFND 1 774,715 0 0
WESTERN GAS PARTNERS LP COM UNIT LP IN 958254104 63,449 1,134,228 SH   DFND 1 2 1,134,228 0 0
WESTLAKE CHEM CORP COM 960413102 3,696 55,827 SH   DFND 1 55,827 0 0
WILLIAMS COS INC DEL COM 969457100 57,805 1,909,021 SH   DFND 1 1,909,021 0 0
WILLIAMS PARTNERS L P NEW COM UNIT LTD PAR 96949L105 122,104 3,044,216 SH   DFND 1 2 3,044,216 0 0
WPX ENERGY INC COM 98212B103 821 85,000 SH   DFND 1 85,000 0 0
XPO LOGISTICS INC COM 983793100 10,504 162,528 SH   DFND 1 162,528 0 0