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
AEGEAN MARINE PETROLEUM NETW SHS Y0017S102 358 28,939 SH   SOLE 28,939 0 0
AK STL HLDG CORP COM 001547108 4 372,100 SH Call SOLE 372,100 0 0
ALLIANCE HOLDINGS GP LP COM UNITS LP 01861G100 5,414 138,300 SH   SOLE 138,300 0 0
AMERIGAS PARTNERS L P UNIT L P INT 030975106 3,751 82,050 SH   SOLE 82,050 0 0
ANADARKO PETE CORP COM 032511107 6,104 78,200 SH   DFND 1 78,200 0 0
ANTERO MIDSTREAM PARTNERS LP UNT LTD PARTN 03673L103 5,487 191,600 SH   SOLE 191,600 0 0
ARDMORE SHIPPING CORP COM Y0207T100 1,863 153,854 SH   SOLE 153,854 0 0
ATLAS RESOURCE PARTNERS LP COM UNT LTD PR 04941A101 6,319 1,009,422 SH   DFND 1 1,009,422 0 0
AZURE MIDSTREAM PARTNERS LP COM UNIT LTD PAR 05501X100 246 20,700 SH   SOLE 20,700 0 0
BAKER HUGHES INC COM 057224107 1,114 18,053 SH   SOLE 18,053 0 0
BLUEKNIGHT ENERGY PARTNERS L COM UNIT 09625U109 34,592 4,618,484 SH   DFND 1 4,618,484 0 0
BOARDWALK PIPELINE PARTNERS UT LTD PARTNER 096627104 23 455,000 SH Call SOLE 455,000 0 0
BUCKEYE PARTNERS L P UNIT LTD PARTN 118230101 8,526 115,320 SH   SOLE 115,320 0 0
C&J ENERGY SVCS LTD SHS G3164Q101 409 30,994 SH   SOLE 30,994 0 0
CALPINE CORP COM NEW 131347304 7,127 396,130 SH   DFND 1 396,130 0 0
CANADIAN PAC RY LTD COM 13645T100 3,257 20,330 SH   DFND 1 20,330 0 0
CANADIAN PAC RY LTD COM 13645T100 8 15,500 SH Call SOLE 15,500 0 0
CAPITAL PRODUCT PARTNERS L P COM UNIT LP Y11082107 63,086 8,077,574 SH   DFND 1 8,077,574 0 0
CENOVUS ENERGY INC COM 15135U109 3,042 190,000 SH   DFND 1 190,000 0 0
CENTERPOINT ENERGY INC COM 15189T107 9,285 487,909 SH   DFND 1 487,909 0 0
CHART INDS INC COM PAR $0.01 16115Q308 2,485 69,512 SH   DFND 1 69,512 0 0
CHENIERE ENERGY INC COM NEW 16411R208 37,710 544,469 SH   DFND 1 544,469 0 0
CHENIERE ENERGY PARTNERS LP COM UNIT 16411Q101 7,095 230,000 SH   SOLE 230,000 0 0
CHEVRON CORP NEW COM 166764100 9,290 96,300 SH   DFND 1 96,300 0 0
CIMAREX ENERGY CO COM 171798101 1,015 9,200 SH   DFND 1 9,200 0 0
COLUMBIA PIPELINE GROUP INC COM 198280109 5,126 178,000 SH   SOLE 178,000 0 0
COLUMBIA PIPELINE PARTNERS L COM UT REPSTG 198281107 14,297 567,346 SH   SOLE 567,346 0 0
CONE MIDSTREAM PARTNERS LP COM UNIT REPST 206812109 2,745 155,100 SH   SOLE 155,100 0 0
CONOCOPHILLIPS COM 20825C104 7,928 129,092 SH   DFND 1 129,092 0 0
CONTINENTAL RESOURCES INC COM 212015101 1,246 29,400 SH   DFND 1 29,400 0 0
COVENANT TRANSN GROUP INC CL A 22284P105 1,140 45,481 SH   SOLE 45,481 0 0
CSX CORP COM 126408103 4,155 127,240 SH   DFND 1 127,240 0 0
CUSHING MLP TOTAL RETURN FD COM SHS 231631102 67 18,174 SH   SOLE 18,174 0 0
CUSHING RTY & INCOME FD COM SH BEN INT 23164R104 54 12,432 SH   SOLE 12,432 0 0
DCP MIDSTREAM PARTNERS LP COM UT LTD PTN 23311P100 44,956 1,464,850 SH   DFND 1 1,464,850 0 0
DELEK LOGISTICS PARTNERS LP COM UNT RP INT 24664T103 10,732 233,050 SH   SOLE 233,050 0 0
DEVON ENERGY CORP NEW COM 25179M103 6,145 103,293 SH   DFND 1 103,293 0 0
DHT HOLDINGS INC SHS NEW Y2065G121 491 63,244 SH   SOLE 63,244 0 0
DOMINION MIDSTREAM PARTNERS COM UT REP LTD 257454108 28,231 736,910 SH   DFND 1 736,910 0 0
DOMINION RES INC VA NEW COM 25746U109 14,447 216,052 SH   DFND 1 216,052 0 0
DORCHESTER MINERALS LP COM UNIT 25820R105 11,708 547,371 SH   DFND 1 547,371 0 0
DOW CHEM CO COM 260543103 16,046 313,590 SH   DFND 1 313,590 0 0
DU PONT E I DE NEMOURS & CO COM 263534109 2,558 40,000 SH   SOLE 40,000 0 0
EAGLE MATERIALS INC COM 26969P108 4,586 60,086 SH   DFND 1 60,086 0 0
ENABLE MIDSTREAM PARTNERS LP COM UNIT RP IN 292480100 25,415 1,590,406 SH   DFND 1 1,590,406 0 0
ENBRIDGE ENERGY MANAGEMENT L SHS UNITS LLI 29250X103 5,633 170,701 SH   SOLE 170,701 0 0
ENBRIDGE ENERGY PARTNERS L P COM 29250R106 72,184 2,165,765 SH   DFND 1 2,165,765 0 0
ENERGY TRANSFER EQUITY L P COM UT LTD PTN 29273V100 181,203 2,823,805 SH   DFND 1 2,823,805 0 0
ENERGY TRANSFER PRTNRS L P UNIT LTD PARTN 29273R109 145,056 2,778,857 SH   DFND 1 2,778,857 0 0
ENLINK MIDSTREAM LLC COM UNIT REP LTD 29336T100 11,466 368,800 SH   SOLE 368,800 0 0
ENLINK MIDSTREAM PARTNERS LP COM UNIT REP LTD 29336U107 94,393 4,296,420 SH   DFND 1 4,296,420 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 101,186 3,385,275 SH   DFND 1 3,385,275 0 0
EOG RES INC COM 26875P101 10,538 120,369 SH   DFND 1 120,369 0 0
EQT GP HLDGS LP COM UNIT REP 26885J103 26,768 787,525 SH   DFND 1 787,525 0 0
EQT MIDSTREAM PARTNERS LP UNIT LTD PARTN 26885B100 118,756 1,456,420 SH   DFND 1 1,456,420 0 0
EV ENERGY PARTNERS LP COM UNITS 26926V107 16,438 1,438,134 SH   DFND 1 1,438,134 0 0
EXTERRAN PARTNERS LP COM UNITS 30225N105 3,869 171,964 SH   SOLE 171,964 0 0
EXXON MOBIL CORP COM 30231G102 5,225 62,800 SH   DFND 1 62,800 0 0
FLOWSERVE CORP COM 34354P105 4,577 86,913 SH   DFND 1 86,913 0 0
FLOWSERVE CORP COM 34354P105 26 41,400 SH Call SOLE 41,400 0 0
FLUOR CORP NEW COM 343412102 1,060 20,000 SH   SOLE 20,000 0 0
FURMANITE CORPORATION COM 361086101 420 51,674 SH   SOLE 51,674 0 0
GASLOG LTD SHS G37585109 34,653 1,736,985 SH   DFND 1 1,736,985 0 0
GASLOG PARTNERS LP UNIT LTD PTNRP Y2687W108 14,433 630,833 SH   DFND 1 630,833 0 0
GENER8 MARITIME INC COM Y26889108 681 50,000 SH   SOLE 50,000 0 0
GENESEE & WYO INC CL A 371559105 2,076 27,252 SH   SOLE 27,252 0 0
GENESIS ENERGY L P UNIT LTD PARTN 371927104 85,885 1,956,826 SH   DFND 1 1,956,826 0 0
GOLAR LNG LTD BERMUDA SHS G9456A100 64,494 1,378,075 SH   DFND 1 1,378,075 0 0
GOLAR LNG LTD BERMUDA SHS G9456A100 547 144,000 SH Put SOLE 144,000 0 0
GOLAR LNG PARTNERS LP COM UNIT LPI Y2745C102 42,358 1,716,986 SH   DFND 1 1,716,986 0 0
GREENBRIER COS INC COM 393657101 6,713 143,293 SH   DFND 1 143,293 0 0
HALLIBURTON CO COM 406216101 1,087 25,237 SH   SOLE 25,237 0 0
HOEGH LNG PARTNERS LP COM UNIT LTD Y3262R100 981 51,339 SH   DFND 1 51,339 0 0
HOLLYFRONTIER CORP COM 436106108 1,366 32,000 SH   SOLE 32,000 0 0
HUB GROUP INC CL A 443320106 403 10,000 SH   SOLE 10,000 0 0
HUNT J B TRANS SVCS INC COM 445658107 9,473 115,395 SH   DFND 1 115,395 0 0
ITT CORP NEW COM NEW 450911201 6,533 156,140 SH   DFND 1 156,140 0 0
KINDER MORGAN INC DEL COM 49456B101 167,637 4,366,677 SH   DFND 1 4,366,677 0 0
KIRBY CORP COM 497266106 634 8,269 SH   SOLE 8,269 0 0
KNOT OFFSHORE PARTNERS LP COM UNITS Y48125101 1,644 85,970 SH   SOLE 85,970 0 0
LEGACY RESVS LP UNIT LP INT 524707304 16,488 1,923,884 SH   DFND 1 1,923,884 0 0
LINCOLN ELEC HLDGS INC COM 533900106 2,942 48,305 SH   DFND 1 48,305 0 0
LRR ENERGY LP COM 50214A104 1,824 243,260 SH   DFND 1 243,260 0 0
LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 16,128 155,795 SH   DFND 1 155,795 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 82,898 1,129,697 SH   DFND 1 1,129,697 0 0
MANITOWOC INC COM 563571108 367 18,725 SH   SOLE 18,725 0 0
MARATHON PETE CORP COM 56585A102 28,170 538,514 SH   DFND 1 538,514 0 0
MARKWEST ENERGY PARTNERS L P UNIT LTD PARTN 570759100 76,542 1,357,615 SH   DFND 1 1,357,615 0 0
MCDERMOTT INTL INC COM 580037109 221 41,333 SH   SOLE 41,333 0 0
MEMORIAL PRODTN PARTNERS LP COM U REP LTD 586048100 22,550 1,518,531 SH   DFND 1 1,518,531 0 0
MID CON ENERGY PARTNERS LP COM UNIT REPST 59560V109 3,673 734,651 SH   DFND 1 734,651 0 0
MOBILE MINI INC COM 60740F105 2,417 57,500 SH   DFND 1 57,500 0 0
MPLX LP COM UNIT REP LTD 55336V100 32,431 454,345 SH   DFND 1 454,345 0 0
NAVIGATOR HOLDINGS LTD SHS Y62132108 2,890 152,600 SH   SOLE 152,600 0 0
NAVIOS MARITIME PARTNERS L P UNIT LPI Y62267102 26,299 2,457,843 SH   DFND 1 2,457,843 0 0
NEFF CORP COM CL A 640094207 3,367 333,659 SH   DFND 1 333,659 0 0
NGL ENERGY PARTNERS LP COM UNIT REPST 62913M107 84,127 2,773,724 SH   DFND 1 2,773,724 0 0
NISOURCE INC COM 65473P105 3,798 83,300 SH   SOLE 83,300 0 0
NRG ENERGY INC COM NEW 629377508 7,147 312,365 SH   DFND 1 312,365 0 0
NUSTAR ENERGY LP UNIT COM 67058H102 82,185 1,384,765 SH   DFND 1 1,384,765 0 0
NUSTAR GP HOLDINGS LLC UNIT RESTG LLC 67059L102 5,216 137,050 SH   SOLE 137,050 0 0
OCCIDENTAL PETE CORP DEL COM 674599105 9,927 127,650 SH   DFND 1 127,650 0 0
OLD DOMINION FGHT LINES INC COM 679580100 7,372 107,460 SH   DFND 1 107,460 0 0
ONEOK INC NEW COM 682680103 38,485 974,800 SH   DFND 1 974,800 0 0
ONEOK PARTNERS LP UNIT LTD PARTN 68268N103 28,587 840,800 SH   DFND 1 840,800 0 0
PACIFIC DRILLING SA LUXEMBOU REG SHS L7257P106 289 103,290 SH   SOLE 103,290 0 0
PBF ENERGY INC CL A 69318G106 441 15,502 SH   SOLE 15,502 0 0
PHILLIPS 66 COM 718546104 49,750 617,549 SH   DFND 1 617,549 0 0
PHILLIPS 66 PARTNERS LP COM UNIT REP INT 718549207 36,708 509,830 SH   DFND 1 509,830 0 0
PIONEER NAT RES CO COM 723787107 6,155 44,380 SH   DFND 1 44,380 0 0
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 57,842 1,327,565 SH   DFND 1 1,327,565 0 0
PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 71,293 2,759,019 SH   DFND 1 2,759,019 0 0
POLYONE CORP COM 73179P106 13,200 336,995 SH   DFND 1 336,995 0 0
PPG INDS INC COM 693506107 6,607 57,596 SH   DFND 1 57,596 0 0
PPL CORP COM 69351T106 2,210 75,000 SH   SOLE 75,000 0 0
PRECISION CASTPARTS CORP COM 740189105 805 4,030 SH   SOLE 4,030 0 0
QEP RES INC COM 74733V100 2,976 160,755 SH   DFND 1 160,755 0 0
QUANTA SVCS INC COM 74762E102 12,835 445,346 SH   DFND 1 445,346 0 0
RICE MIDSTREAM PARTNERS LP UNIT LTD PARTN 762819100 708 40,800 SH   SOLE 40,800 0 0
ROSE ROCK MIDSTREAM L P COM U REP LTD 777149105 15,483 331,172 SH   SOLE 331,172 0 0
ROYAL DUTCH SHELL PLC SPON ADR B 780259107 6,140 107,700 SH   DFND 1 107,700 0 0
RYDER SYS INC COM 783549108 17,923 205,141 SH   DFND 1 205,141 0 0
SAIA INC COM 78709Y105 2,419 61,563 SH   DFND 1 61,563 0 0
SEADRILL PARTNERS LLC COMUNIT REP LB Y7545W109 4,734 383,669 SH   DFND 1 383,669 0 0
SEALED AIR CORP NEW COM 81211K100 10,787 209,940 SH   DFND 1 209,940 0 0
SEMGROUP CORP CL A 81663A105 43,782 550,855 SH   DFND 1 550,855 0 0
SEMPRA ENERGY COM 816851109 14,904 150,636 SH   DFND 1 150,636 0 0
SHELL MIDSTREAM PARTNERS L P UNIT LTD INT 822634101 88,709 1,943,232 SH   DFND 1 1,943,232 0 0
SHERWIN WILLIAMS CO COM 824348106 7,723 28,081 SH   DFND 1 28,081 0 0
SOUTHERN CO COM 842587107 2,535 60,500 SH   SOLE 60,500 0 0
SPECTRA ENERGY PARTNERS LP COM 84756N109 2,810 60,950 SH   SOLE 60,950 0 0
SUMMIT MIDSTREAM PARTNERS LP COM UNIT LTD 866142102 2,981 90,209 SH   SOLE 90,209 0 0
SUNOCO LOGISTICS PRTNRS L P COM UNITS 86764L108 87,766 2,307,815 SH   DFND 1 2,307,815 0 0
SWIFT TRANSN CO CL A 87074U101 6,989 308,285 SH   DFND 1 308,285 0 0
TALLGRASS ENERGY GP LP SHS CL A 874696107 20,259 630,140 SH   DFND 1 630,140 0 0
TALLGRASS ENERGY PARTNERS LP COM UNIT 874697105 15,280 317,800 SH   SOLE 317,800 0 0
TARGA RES CORP COM 87612G101 103,039 1,154,884 SH   DFND 1 1,154,884 0 0
TARGA RESOURCES PARTNERS LP COM UNIT 87611X105 103,846 2,690,300 SH   DFND 1 2,690,300 0 0
TC PIPELINES LP UT COM LTD PRT 87233Q108 8,423 147,774 SH   SOLE 147,774 0 0
TEEKAY CORPORATION COM Y8564W103 82,363 1,923,480 SH   DFND 1 1,923,480 0 0
TEEKAY CORPORATION COM Y8564W103 19 62,000 SH Call SOLE 62,000 0 0
TEEKAY CORPORATION COM Y8564W103 46 82,900 SH Put SOLE 82,900 0 0
TEEKAY LNG PARTNERS L P PRTNRSP UNITS Y8564M105 3,167 98,342 SH   SOLE 98,342 0 0
TEEKAY OFFSHORE PARTNERS L P PARTNERSHIP UN Y8565J101 11,208 554,023 SH   DFND 1 554,023 0 0
TEEKAY TANKERS LTD CL A Y8565N102 498 75,345 SH   SOLE 75,345 0 0
TESORO CORP COM 881609101 14,426 170,895 SH   DFND 1 170,895 0 0
TESORO LOGISTICS LP COM UNIT LP 88160T107 96,222 1,684,553 SH   DFND 1 1,684,553 0 0
TETRA TECH INC NEW COM 88162G103 477 18,605 SH   SOLE 18,605 0 0
UNION PAC CORP COM 907818108 14 18,600 SH Call SOLE 18,600 0 0
UNION PAC CORP COM 907818108 363 3,810 SH   SOLE 3,810 0 0
UNITED RENTALS INC COM 911363109 4,178 47,680 SH   DFND 1 47,680 0 0
UNITED STATES STL CORP NEW COM 912909108 533 25,837 SH   SOLE 25,837 0 0
VALERO ENERGY CORP NEW COM 91913Y100 12,591 201,140 SH   DFND 1 201,140 0 0
VALERO ENERGY PARTNERS LP COM UNT REP LP 91914J102 30,935 605,612 SH   DFND 1 605,612 0 0
VANGUARD NAT RES LLC COM UNIT 92205F106 21,422 1,434,801 SH   DFND 1 1,434,801 0 0
VERMILION ENERGY INC COM 923725105 7,587 175,650 SH   DFND 1 175,650 0 0
VIPER ENERGY PARTNERS LP COM UNT RP INT 92763M105 315 16,000 SH   DFND 1 16,000 0 0
VTTI ENERGY PARTNERS LP COM UNIT RP LT Y9384M101 7,525 300,500 SH   SOLE 300,500 0 0
WABCO HLDGS INC COM 92927K102 2,380 19,233 SH   DFND 1 19,233 0 0
WABTEC CORP COM 929740108 20,844 221,177 SH   DFND 1 221,177 0 0
WEATHERFORD INTL PLC ORD SHS G48833100 1,268 103,363 SH   SOLE 103,363 0 0
WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 31,874 531,232 SH   DFND 1 531,232 0 0
WESTERN GAS PARTNERS LP COM UNIT LP IN 958254104 58,171 917,961 SH   DFND 1 917,961 0 0
WESTERN REFNG INC COM 959319104 3,632 83,255 SH   SOLE 83,255 0 0
WESTERN REFNG LOGISTICS LP COM UNIT REP LTP 95931Q205 6,334 215,500 SH   SOLE 215,500 0 0
WESTLAKE CHEM CORP COM 960413102 13,740 200,324 SH   DFND 1 200,324 0 0
WILLIAMS COS INC DEL COM 969457100 153,405 2,673,032 SH   DFND 1 2,673,032 0 0
WILLIAMS PARTNERS L P NEW COM UNIT LTD PAR 96949L105 123,097 2,541,749 SH   DFND 1 2,541,749 0 0
WORLD PT TERMS LP UNIT REP LTD PT 98159G107 1,733 101,000 SH   SOLE 101,000 0 0
XPO LOGISTICS INC COM 983793100 13,850 306,551 SH   DFND 1 306,551 0 0