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
ACCESS MIDSTREAM PARTNERS L UNIT 00434L109 108,492 2,001,702 SH   DFND 1 2,001,702 0 0
ALBEMARLE CORP COM 012653101 7,018 116,720 SH   DFND 1 116,720 0 0
ALLIANCE HOLDINGS GP LP COM UNITS LP 01861G100 9,106 149,300 SH   SOLE 149,300 0 0
ALLISON TRANSMISSION HLDGS I COM 01973R101 5,336 157,408 SH   DFND 1 157,408 0 0
ALON USA PARTNERS LP UT LTDPART INT 02052T109 5,293 410,000 SH   DFND 1 410,000 0 0
AMERIGAS PARTNERS L P UNIT L P INT 030975106 8,113 169,300 SH   SOLE 169,300 0 0
ANTERO MIDSTREAM PARTNERS LP UNT LTD PARTN 03673L103 4,326 157,300 SH   SOLE 157,300 0 0
ARDMORE SHIPPING CORP COM Y0207T100 2,452 204,865 SH   DFND 1 204,865 0 0
ATLAS ENERGY LP COM UNITS LP 04930A104 17,464 560,650 SH   SOLE 560,650 0 0
ATLAS PIPELINE PARTNERS LP UNIT L P INT 049392103 79,664 2,922,381 SH   DFND 1 2,922,381 0 0
ATLAS RESOURCE PARTNERS LP COM UNT LTD PR 04941A101 25,767 2,408,095 SH   DFND 1 2,408,095 0 0
BAKER HUGHES INC COM 057224107 2,210 39,407 SH   DFND 1 39,407 0 0
BLUEKNIGHT ENERGY PARTNERS L COM UNIT 09625U109 29,736 4,471,633 SH   SOLE 4,471,633 0 0
BOARDWALK PIPELINE PARTNERS UT LTD PARTNER 096627104 41 406,000 SH Call SOLE 406,000 0 0
BREITBURN ENERGY PARTNERS LP COM UT LTD PTN 106776107 37,680 5,382,893 SH   DFND 1 5,382,893 0 0
BUCKEYE PARTNERS L P UNIT LTD PARTN 118230101 5,858 77,415 SH   SOLE 77,415 0 0
CALPINE CORP COM NEW 131347304 6,387 288,601 SH   DFND 1 288,601 0 0
CAPITAL PRODUCT PARTNERS L P COM UNIT LP Y11082107 55,538 6,942,247 SH   DFND 1 6,942,247 0 0
CELADON GROUP INC COM 150838100 1,387 61,122 SH   SOLE 61,122 0 0
CENOVUS ENERGY INC COM 15135U109 3,608 175,000 SH   DFND 1 175,000 0 0
CENTERPOINT ENERGY INC COM 15189T107 8,582 366,269 SH   DFND 1 366,269 0 0
CHART INDS INC COM PAR $0.01 16115Q308 0 20,000 SH Call SOLE 20,000 0 0
CHENIERE ENERGY INC COM NEW 16411R208 10,112 143,626 SH   SOLE 143,626 0 0
CHENIERE ENERGY PARTNERS LP COM UNIT 16411Q101 7,744 242,000 SH   DFND 1 242,000 0 0
CHEVRON CORP NEW COM 166764100 5,833 52,000 SH   DFND 1 52,000 0 0
COMMERCIAL METALS CO COM 201723103 814 50,000 SH   DFND 1 50,000 0 0
CONE MIDSTREAM PARTNERS LP COM UNIT REPST 206812109 16,428 681,093 SH   DFND 1 681,093 0 0
CREDIT SUISSE NASSAU BRH EQL WGT MLP LKD 22542D852 1,038 32,500 SH   SOLE 32,500 0 0
CRESCENT PT ENERGY CORP COM 22576C101 4,310 186,065 SH   DFND 1 186,065 0 0
CROSSAMERICA PARTNERS LP UT LTD PTN INT 22758A105 12,145 301,450 SH   SOLE 301,450 0 0
CSI COMPRESSCO LP COM UNIT 12637A103 4,308 328,135 SH   SOLE 328,135 0 0
CSX CORP COM 126408103 5,619 155,078 SH   DFND 1 155,078 0 0
CUMMINS INC COM 231021106 7,093 49,200 SH   DFND 1 49,200 0 0
CUSHING MLP TOTAL RETURN FD COM SHS 231631102 104 17,701 SH   SOLE 17,701 0 0
CUSHING RTY & INCOME FD COM SH BEN INT 23164R104 94 11,903 SH   SOLE 11,903 0 0
CVR ENERGY INC COM 12662P108 4,471 115,510 SH   SOLE 115,510 0 0
CVR REFNG LP COMUNIT REP LT 12663P107 5,292 315,000 SH   DFND 1 315,000 0 0
DCP MIDSTREAM PARTNERS LP COM UT LTD PTN 23311P100 73,477 1,617,355 SH   DFND 1 1,617,355 0 0
DELEK LOGISTICS PARTNERS LP COM UNT RP INT 24664T103 14,064 396,516 SH   DFND 1 396,516 0 0
DELEK US HLDGS INC COM 246647101 9,486 347,698 SH   DFND 1 347,698 0 0
DEVON ENERGY CORP NEW COM 25179M103 4,530 74,000 SH   DFND 1 74,000 0 0
DOMINION MIDSTREAM PARTNERS COM UT REP LTD 257454108 27,446 700,155 SH   SOLE 700,155 0 0
DOMINION RES INC VA NEW COM 25746U109 13,439 174,749 SH   DFND 1 174,749 0 0
DORCHESTER MINERALS LP COM UNIT 25820R105 13,638 534,213 SH   DFND 1 534,213 0 0
DOW CHEM CO COM 260543103 15,038 329,710 SH   DFND 1 329,710 0 0
DU PONT E I DE NEMOURS & CO COM 263534109 2,958 40,000 SH   SOLE 40,000 0 0
DUKE ENERGY CORP NEW COM NEW 26441C204 1,838 22,000 SH   SOLE 22,000 0 0
EAGLE MATERIALS INC COM 26969P108 9,068 119,273 SH   DFND 1 119,273 0 0
EASTMAN CHEM CO COM 277432100 10,694 140,973 SH   DFND 1 140,973 0 0
ENABLE MIDSTREAM PARTNERS LP COM UNIT RP IN 292480100 10,863 560,249 SH   DFND 1 560,249 0 0
ENBRIDGE ENERGY MANAGEMENT L SHS UNITS LLI 29250X103 5,150 132,772 SH   SOLE 132,772 0 0
ENBRIDGE ENERGY PARTNERS L P COM 29250R106 96,340 2,414,530 SH   DFND 1 2,414,530 0 0
ENERGY TRANSFER EQUITY L P COM UT LTD PTN 29273V100 168,491 2,936,408 SH   DFND 1 2,936,408 0 0
ENERGY TRANSFER PRTNRS L P UNIT LTD PARTN 29273R109 153,434 2,360,522 SH   DFND 1 2,360,522 0 0
ENERPLUS CORP COM 292766102 6,557 683,040 SH   DFND 1 683,040 0 0
ENLINK MIDSTREAM LLC COM UNIT REP LTD 29336T100 12,688 356,800 SH   DFND 1 356,800 0 0
ENLINK MIDSTREAM PARTNERS LP COM UNIT REP LTD 29336U107 95,222 3,282,372 SH   SOLE 3,282,372 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 104,868 2,903,331 SH   DFND 1 2,903,331 0 0
EOG RES INC COM 26875P101 281 3,050 SH   SOLE 3,050 0 0
EQT MIDSTREAM PARTNERS LP UNIT LTD PARTN 26885B100 120,686 1,371,425 SH   DFND 1 1,371,425 0 0
EV ENERGY PARTNERS LP COM UNITS 26926V107 31,650 1,642,459 SH   DFND 1 1,642,459 0 0
EXTERRAN HLDGS INC COM 30225X103 905 27,764 SH   SOLE 27,764 0 0
EXTERRAN PARTNERS LP COM UNITS 30225N105 5,721 264,614 SH   SOLE 264,614 0 0
EXXON MOBIL CORP COM 30231G102 5,455 59,000 SH   DFND 1 59,000 0 0
FERRELLGAS PARTNERS L.P. UNIT LTD PART 315293100 4,230 192,450 SH   SOLE 192,450 0 0
FLOWSERVE CORP COM 34354P105 9,341 156,135 SH   DFND 1 156,135 0 0
FLUOR CORP NEW COM 343412102 2,289 37,750 SH   SOLE 37,750 0 0
GASLOG LTD SHS G37585109 24,948 1,225,945 SH   DFND 1 1,225,945 0 0
GASLOG PARTNERS LP UNIT LTD PTNRP Y2687W108 7,953 315,078 SH   DFND 1 315,078 0 0
GENESEE & WYO INC CL A 371559105 2,080 23,135 SH   SOLE 23,135 0 0
GENESIS ENERGY L P UNIT LTD PARTN 371927104 55,120 1,299,397 SH   DFND 1 1,299,397 0 0
GOLAR LNG LTD BERMUDA SHS G9456A100 40,574 1,112,533 SH   DFND 1 1,112,533 0 0
GOLAR LNG PARTNERS LP COM UNIT LPI Y2745C102 7,118 228,500 SH   DFND 1 228,500 0 0
GREENBRIER COS INC COM 393657101 7,443 138,528 SH   DFND 1 138,528 0 0
H & E EQUIPMENT SERVICES INC COM 404030108 6,627 235,921 SH   DFND 1 235,921 0 0
HALLIBURTON CO COM 406216101 305 7,750 SH   SOLE 7,750 0 0
HOEGH LNG PARTNERS LP COM UNIT LTD Y3262R100 1,060 51,339 SH   DFND 1 51,339 0 0
HOLLYFRONTIER CORP COM 436106108 5,899 157,400 SH   DFND 1 157,400 0 0
HUGOTON RTY TR TEX UNIT BEN INT 444717102 1,190 140,700 SH   SOLE 140,700 0 0
INDEPENDENCE CONTRACT DRIL I COM 453415309 616 118,085 SH   DFND 1 118,085 0 0
ITT CORP NEW COM NEW 450911201 4,702 116,193 SH   DFND 1 116,193 0 0
JACOBS ENGR GROUP INC DEL COM 469814107 670 15,000 SH   SOLE 15,000 0 0
KINDER MORGAN INC DEL COM 49456B101 207,388 4,901,632 SH   DFND 1 4,901,632 0 0
KINDER MORGAN INC DEL COM 49456B101 547 841,500 SH Call SOLE 841,500 0 0
KIRBY CORP COM 497266106 15,466 191,561 SH   DFND 1 191,561 0 0
KNOT OFFSHORE PARTNERS LP COM UNITS Y48125101 1,912 85,970 SH   SOLE 85,970 0 0
LEGACY RESVS LP UNIT LP INT 524707304 24,531 2,146,225 SH   DFND 1 2,146,225 0 0
LINCOLN ELEC HLDGS INC COM 533900106 3,203 46,355 SH   DFND 1 46,355 0 0
LINN ENERGY LLC UNIT LTD LIAB 536020100 14,740 1,455,124 SH   DFND 1 1,455,124 0 0
LINN ENERGY LLC UNIT LTD LIAB 536020100 0 220,000 SH Call SOLE 220,000 0 0
LINNCO LLC COMSHS LTD INT 535782106 3,699 356,739 SH   SOLE 356,739 0 0
LRR ENERGY LP COM 50214A104 7,457 1,054,678 SH   DFND 1 1,054,678 0 0
LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 12,408 156,295 SH   DFND 1 156,295 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 86,745 1,049,421 SH   DFND 1 1,049,421 0 0
MARATHON PETE CORP COM 56585A102 22,748 252,025 SH   DFND 1 252,025 0 0
MARKWEST ENERGY PARTNERS L P UNIT LTD PARTN 570759100 106,155 1,579,911 SH   DFND 1 1,579,911 0 0
MARKWEST ENERGY PARTNERS L P UNIT LTD PARTN 570759100 0 439,000 SH Call SOLE 439,000 0 0
MATRIX SVC CO COM 576853105 5,022 225,000 SH   DFND 1 225,000 0 0
MEMORIAL PRODTN PARTNERS LP COM U REP LTD 586048100 38,750 2,655,948 SH   DFND 1 2,655,948 0 0
METHANEX CORP COM 59151K108 7,106 155,043 SH   DFND 1 155,043 0 0
MID CON ENERGY PARTNERS LP COM UNIT REPST 59560V109 10,442 1,654,857 SH   DFND 1 1,654,857 0 0
MOBILE MINI INC COM 60740F105 2,329 57,500 SH   DFND 1 57,500 0 0
MPLX LP COM UNIT REP LTD 55336V100 34,425 468,438 SH   SOLE 468,438 0 0
MRC GLOBAL INC COM 55345K103 2,938 193,900 SH   DFND 1 193,900 0 0
NATURAL RESOURCE PARTNERS L COM UNIT L P 63900P103 10,937 1,182,350 SH   DFND 1 1,182,350 0 0
NAVIGATOR HOLDINGS LTD SHS Y62132108 9,806 465,643 SH   DFND 1 465,643 0 0
NAVIOS MARITIME PARTNERS L P UNIT LPI Y62267102 31,318 3,079,450 SH   DFND 1 3,079,450 0 0
NEFF CORP COM CL A 640094207 838 74,400 SH   SOLE 74,400 0 0
NGL ENERGY PARTNERS LP COM UNIT REPST 62913M107 71,422 2,551,698 SH   DFND 1 2,551,698 0 0
NRG ENERGY INC COM NEW 629377508 7,852 291,365 SH   DFND 1 291,365 0 0
NRG YIELD INC COM CL A 62942X108 4,714 100,000 SH   DFND 1 100,000 0 0
NUSTAR ENERGY LP UNIT COM 67058H102 72,017 1,247,045 SH   SOLE 1,247,045 0 0
NUSTAR GP HOLDINGS LLC UNIT RESTG LLC 67059L102 5,466 158,800 SH   DFND 1 158,800 0 0
OCCIDENTAL PETE CORP DEL COM 674599105 5,965 74,000 SH   DFND 1 74,000 0 0
OCI PARTNERS LP COM UNIT REP LP 67091N108 4,294 268,348 SH   DFND 1 268,348 0 0
ONEOK INC NEW COM 682680103 56,377 1,132,282 SH   DFND 1 1,132,282 0 0
ONEOK PARTNERS LP UNIT LTD PARTN 68268N103 21,010 530,150 SH   DFND 1 530,150 0 0
PATTERSON UTI ENERGY INC COM 703481101 415 25,000 SH   SOLE 25,000 0 0
PERMIAN BASIN RTY TR UNIT BEN INT 714236106 758 79,400 SH   DFND 1 79,400 0 0
PHILLIPS 66 COM 718546104 39,858 555,897 SH   DFND 1 555,897 0 0
PHILLIPS 66 PARTNERS LP COM UNIT REP INT 718549207 33,933 492,288 SH   SOLE 492,288 0 0
PIONEER NAT RES CO COM 723787107 351 2,360 SH   SOLE 2,360 0 0
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 59,289 1,155,271 SH   DFND 1 1,155,271 0 0
PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 50,579 1,969,590 SH   DFND 1 1,969,590 0 0
POLYONE CORP COM 73179P106 7,075 186,630 SH   DFND 1 186,630 0 0
PPG INDS INC COM 693506107 8,688 37,585 SH   DFND 1 37,585 0 0
PPL CORP COM 69351T106 3,633 100,000 SH   SOLE 100,000 0 0
PRIMORIS SVCS CORP COM 74164F103 6,191 266,373 SH   DFND 1 266,373 0 0
QUALITY DISTR INC FLA COM 74756M102 4,292 403,381 SH   DFND 1 403,381 0 0
QUANTA SVCS INC COM 74762E102 14,659 516,325 SH   DFND 1 516,325 0 0
REGENCY ENERGY PARTNERS L P COM UNITS L P 75885Y107 79,312 3,304,656 SH   DFND 1 3,304,656 0 0
RICE ENERGY INC COM 762760106 6,941 331,020 SH   DFND 1 331,020 0 0
ROSE ROCK MIDSTREAM L P COM U REP LTD 777149105 10,301 226,647 SH   SOLE 226,647 0 0
ROYAL DUTCH SHELL PLC SPON ADR B 780259107 7,934 118,500 SH   DFND 1 118,500 0 0
RSP PERMIAN INC COM 74978Q105 1,257 50,000 SH   SOLE 50,000 0 0
RYDER SYS INC COM 783549108 13,921 149,928 SH   DFND 1 149,928 0 0
SABINE ROYALTY TR UNIT BEN INT 785688102 954 26,673 SH   DFND 1 26,673 0 0
SEADRILL PARTNERS LLC COMUNIT REP LB Y7545W109 7,504 462,369 SH   DFND 1 462,369 0 0
SEALED AIR CORP NEW COM 81211K100 6,517 153,590 SH   DFND 1 153,590 0 0
SEMGROUP CORP CL A 81663A105 28,993 423,935 SH   SOLE 423,935 0 0
SEMPRA ENERGY COM 816851109 13,213 118,650 SH   DFND 1 118,650 0 0
SHELL MIDSTREAM PARTNERS L P UNIT LTD INT 822634101 79,288 1,934,807 SH   DFND 1 1,934,807 0 0
SHERWIN WILLIAMS CO COM 824348106 15,012 57,070 SH   DFND 1 57,070 0 0
SOUTHCROSS ENERGY PARTNERS L COM UNIT LTDPT 84130C100 4,444 279,480 SH   SOLE 279,480 0 0
SOUTHERN CO COM 842587107 2,971 60,500 SH   SOLE 60,500 0 0
SPRAGUE RES LP COM UNIT REP LTD 849343108 1,110 47,350 SH   SOLE 47,350 0 0
STEEL DYNAMICS INC COM 858119100 888 45,000 SH   SOLE 45,000 0 0
SUBURBAN PROPANE PARTNERS L UNIT LTD PARTN 864482104 5,129 118,650 SH   SOLE 118,650 0 0
SUMMIT MIDSTREAM PARTNERS LP COM UNIT LTD 866142102 6,403 168,509 SH   SOLE 168,509 0 0
SUNOCO LOGISTICS PRTNRS L P COM UNITS 86764L108 66,184 1,584,103 SH   DFND 1 1,584,103 0 0
SUNOCO LP COM U REP LP 86765K109 5,208 104,650 SH   SOLE 104,650 0 0
SWIFT TRANSN CO CL A 87074U101 10,909 381,060 SH   DFND 1 381,060 0 0
TALLGRASS ENERGY PARTNERS LP COM UNIT 874697105 3,692 82,600 SH   SOLE 82,600 0 0
TARGA RES CORP COM 87612G101 130,275 1,228,426 SH   DFND 1 1,228,426 0 0
TARGA RESOURCES PARTNERS LP COM UNIT 87611X105 1,225 25,595 SH   SOLE 25,595 0 0
TEEKAY CORPORATION COM Y8564W103 32,144 631,642 SH   DFND 1 631,642 0 0
TEEKAY LNG PARTNERS L P PRTNRSP UNITS Y8564M105 3,483 81,000 SH   DFND 1 81,000 0 0
TEEKAY OFFSHORE PARTNERS L P PARTNERSHIP UN Y8565J101 2,143 80,000 SH   SOLE 80,000 0 0
TESORO CORP COM 881609101 2,091 28,120 SH   SOLE 28,120 0 0
TESORO LOGISTICS LP COM UNIT LP 88160T107 72,972 1,239,959 SH   DFND 1 1,239,959 0 0
TRANSOCEAN PARTNERS LLC COM UNIT RP LT Y8977Y100 4,741 324,300 SH   DFND 1 324,300 0 0
TRINITY INDS INC COM 896522109 0 12,500 SH Call SOLE 12,500 0 0
U S SILICA HLDGS INC COM 90346E103 994 38,700 SH   SOLE 38,700 0 0
UBS AG JERSEY BRANCH 2XMN ALR MLP INF 902664200 4,891 85,000 SH   SOLE 85,000 0 0
UNION PAC CORP COM 907818108 16,005 134,351 SH   DFND 1 134,351 0 0
UNITED CONTL HLDGS INC COM 910047109 346 5,170 SH   SOLE 5,170 0 0
UNITED RENTALS INC COM 911363109 21,106 206,898 SH   DFND 1 206,898 0 0
VALERO ENERGY PARTNERS LP COM UNT REP LP 91914J102 24,660 570,176 SH   SOLE 570,176 0 0
VANGUARD NAT RES LLC COM UNIT 92205F106 27,473 1,823,056 SH   DFND 1 1,823,056 0 0
WABASH NATL CORP COM 929566107 1,761 142,454 SH   DFND 1 142,454 0 0
WABTEC CORP COM 929740108 16,942 194,985 SH   DFND 1 194,985 0 0
WEATHERFORD INTL PLC ORD SHS G48833100 139 12,120 SH   SOLE 12,120 0 0
WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 31,055 515,614 SH   SOLE 515,614 0 0
WESTERN GAS PARTNERS LP COM UNIT LP IN 958254104 58,130 795,766 SH   DFND 1 795,766 0 0
WESTERN REFNG INC COM 959319104 14,976 396,390 SH   DFND 1 396,390 0 0
WESTERN REFNG LOGISTICS LP COM UNIT REP LTP 95931Q205 6,664 218,500 SH   SOLE 218,500 0 0
WESTLAKE CHEM CORP COM 960413102 12,656 207,170 SH   DFND 1 207,170 0 0
WESTLAKE CHEM CORP COM 960413102 0 12,400 SH Call SOLE 12,400 0 0
WILLIAMS COS INC DEL COM 969457100 1 71,000 SH Call SOLE 71,000 0 0
WILLIAMS COS INC DEL COM 969457100 127,415 2,835,235 SH   DFND 1 2,835,235 0 0
WILLIAMS PARTNERS L P COM UNIT L P 96950F104 7,865 175,765 SH   SOLE 175,765 0 0
WORLD PT TERMS LP UNIT REP LTD PT 98159G107 2,032 101,000 SH   SOLE 101,000 0 0
XPO LOGISTICS INC COM 983793100 9,539 233,346 SH   DFND 1 233,346 0 0