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 564,124 9,802,328 SH   SOLE N/A 9,116,239 0 686,089
ANADARKO PETE CORP COM 032511107 33,025 389,631 SH   SOLE N/A 389,631 0 0
ANTERO RES CORP COM 03674X106 11,525 184,111 SH   SOLE N/A 184,111 0 0
APACHE CORP COM 037411105 1 14 SH   SOLE N/A 14 0 0
ARC LOGISTICS PARTNERS LP COM UT REP LPN 03879N101 2,877 135,700 SH   SOLE N/A 135,700 0 0
BP PLC SPONSORED ADR 055622104 9,274 192,800 SH   SOLE N/A 192,800 0 0
BREITBURN ENERGY PARTNERS LP COM UT LTD PTN 106776107 17,478 875,200 SH   SOLE N/A 875,200 0 0
BUCKEYE PARTNERS L P UNIT LTD PARTN 118230101 819,141 10,914,604 SH   SOLE N/A 9,983,628 0 930,976
CABOT OIL & GAS CORP COM 127097103 15,844 467,640 SH   SOLE N/A 467,640 0 0
CARRIZO OIL & GAS INC COM 144577103 4,620 86,415 SH   SOLE N/A 86,415 0 0
CENOVUS ENERGY INC COM 15135U109 4,437 153,200 SH   SOLE N/A 153,200 0 0
CENTERPOINT ENERGY INC COM 15189T107 71,727 3,027,725 SH   SOLE N/A 3,027,725 0 0
CHESAPEAKE ENERGY CORP COM 165167107 14,772 576,597 SH   SOLE N/A 576,597 0 0
CHEVRON CORP NEW COM 166764100 8,374 70,420 SH   SOLE N/A 70,420 0 0
CIMAREX ENERGY CO COM 171798101 8,741 73,390 SH   SOLE N/A 73,390 0 0
CLEARBRIDGE ENERGY MLP FD IN COM 184692101 99 3,700 SH   SOLE N/A 3,700 0 0
CONCHO RES INC COM 20605P101 12,103 98,800 SH   SOLE N/A 98,800 0 0
CONOCOPHILLIPS COM 20825C104 9,760 138,735 SH   SOLE N/A 138,735 0 0
CONTINENTAL RESOURCES INC COM 212015101 28,425 228,735 SH   SOLE N/A 228,735 0 0
CRESCENT PT ENERGY CORP COM 22576C101 10,430 285,700 SH   SOLE N/A 285,700 0 0
CRESTWOOD MIDSTREAMPARTNERS UNIT LTD PARTNER 226378107 112,142 4,975,223 SH   SOLE N/A 4,975,223 0 0
DCP MIDSTREAM PARTNERS LP COM UT LTD PTN 23311P100 443,556 8,853,422 SH   SOLE N/A 8,173,703 0 679,719
EASTMAN CHEM CO COM 277432100 2 23 SH   SOLE N/A 23 0 0
EL PASO PIPELINE PARTNERS L COM UNIT LPI 283702108 74,732 2,459,089 SH   SOLE N/A 2,459,089 0 0
ENBRIDGE ENERGY MANAGEMENT L SHS UNITS LLI 29250X103 42,594 1,537,132 SH   SOLE N/A 1,537,132 0 0
ENBRIDGE ENERGY PARTNERS L P COM 29250R106 147,718 5,389,204 SH   SOLE N/A 5,389,204 0 0
ENBRIDGE INC COM 29250N105 94,991 2,087,257 SH   SOLE N/A 2,087,257 0 0
ENERGEN CORP COM 29265N108 5,204 64,401 SH   SOLE N/A 64,401 0 0
ENERGY TRANSFER EQUITY L P COM UT LTD PTN 29273V100 659,010 14,096,480 SH   SOLE N/A 12,404,926 0 1,691,554
ENERGY TRANSFER PRTNRS L P UNIT LTD PARTN 29273R109 440,058 8,181,035 SH   SOLE N/A 7,899,251 0 281,784
ENERPLUS CORP COM 292766102 5,524 275,800 SH   SOLE N/A 275,800 0 0
ENLINK MIDSTREAM PARTNERS LP COM UNIT REP LTD 29336U107 177,230 5,826,087 SH   SOLE N/A 5,510,306 0 315,781
ENLINK MIDSTREAM LLC COM UNIT REP LTD 29336T100 26,921 793,200 SH   SOLE N/A 793,200 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 1,167,551 16,833,204 SH   SOLE N/A 15,424,397 0 1,408,807
EOG RES INC COM 26875P101 42,501 216,655 SH   SOLE N/A 216,655 0 0
EQT CORP COM 26884L109 119,518 1,232,525 SH   SOLE N/A 1,232,525 0 0
EQT MIDSTREAM PARTNERS LP UNIT LTD PARTN 26885B100 185,263 2,634,201 SH   SOLE N/A 2,451,403 0 182,798
EV ENERGY PARTNERS LP COM UNITS 26926V107 2,773 82,800 SH   SOLE N/A 82,800 0 0
EXXON MOBIL CORP COM 30231G102 2 21 SH   SOLE N/A 21 0 0
GENESIS ENERGY L P UNIT LTD PARTN 371927104 224,403 4,140,284 SH   SOLE N/A 3,639,117 0 501,167
GOLDMAN SACHS MLP INC OPP FD COM SHS 38147W103 95 5,000 SH   SOLE N/A 5,000 0 0
HALLIBURTON CO COM 406216101 2 37 SH   SOLE N/A 37 0 0
HESS CORP COM 42809H107 5,774 69,670 SH   SOLE N/A 69,670 0 0
HOLLY ENERGY PARTNERS L P COM UT LTD PTN 435763107 102,400 3,087,132 SH   SOLE N/A 3,087,132 0 0
KINDER MORGAN ENERGY PARTNER UT LTD PARTNER 494550106 84,967 1,148,985 SH   SOLE N/A 1,148,985 0 0
KINDER MORGAN INC DEL COM 49456B101 4,500 138,500 SH   SOLE N/A 138,500 0 0
KINDER MORGAN MANAGEMENT LLC SHS 49455U100 227,587 3,175,480 SH   SOLE N/A 3,175,480 0 0
LAREDO PETROLEUM INC COM 516806106 236 9,125 SH   SOLE N/A 9,125 0 0
LEGACY RESERVES LP UNIT LP INT 524707304 16,839 677,908 SH   SOLE N/A 677,908 0 0
LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 232 2,610 SH   SOLE N/A 2,610 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 1,133,541 16,253,809 SH   SOLE N/A 14,808,107 0 1,445,702
MARATHON OIL CORP COM 565849106 15,287 430,367 SH   SOLE N/A 430,367 0 0
MARATHON PETE CORP COM 56585A102 195 2,236 SH   SOLE N/A 2,236 0 0
MARKWEST ENERGY PARTNERS L P UNIT LTD PARTN 570759100 504,032 7,716,347 SH   SOLE N/A 7,061,191 0 655,156
MPLX LP COM UNIT REP LTD 55336V100 266,273 5,435,262 SH   SOLE N/A 4,985,190 0 450,072
NATIONAL FUEL GAS CO N J COM 636180101 40,722 581,408 SH   SOLE N/A 581,408 0 0
NEWFIELD EXPL CO COM 651290108 1,741 55,515 SH   SOLE N/A 55,515 0 0
NEXTERA ENERGY INC COM 65339F101 1 15 SH   SOLE N/A 15 0 0
NISOURCE INC COM 65473P105 125,615 3,535,477 SH   SOLE N/A 3,535,477 0 0
NOBLE ENERGY INC COM 655044105 15,654 220,355 SH   SOLE N/A 220,355 0 0
NRG YIELD INC COM CL A 62942X108 23,055 583,230 SH   SOLE N/A 583,230 0 0
NUSTAR ENERGY LP UNIT COM 67058H102 91,217 1,660,000 SH   SOLE N/A 1,660,000 0 0
OCCIDENTAL PETE CORP DEL COM 674599105 29,125 305,641 SH   SOLE N/A 305,641 0 0
OIL STS INTL INC COM 678026105 68 694 SH   SOLE N/A 694 0 0
OILTANKING PARTNERS L P UNIT LTD 678049107 204,038 2,646,062 SH   SOLE N/A 2,401,726 0 244,336
ONE GAS INC COM 68235P108 2 53 SH   SOLE N/A 53 0 0
ONEOK PARTNERS LP UNIT LTD PARTN 68268N103 259,712 4,849,898 SH   SOLE N/A 4,849,898 0 0
ONEOK INC NEW COM 682680103 448,460 7,568,942 SH   SOLE N/A 6,790,859 0 778,083
PEMBINA PIPELINE CORP COM 706327103 65,092 1,713,817 SH   SOLE N/A 1,713,817 0 0
PENN WEST PETE LTD NEW COM 707887105 54 6,400 SH   SOLE N/A 6,400 0 0
PHILLIPS 66 COM 718546104 193 2,510 SH   SOLE N/A 2,510 0 0
PHILLIPS 66 PARTNERS LP COM UNIT REP INT 718549207 119,815 2,466,850 SH   SOLE N/A 2,270,619 0 196,231
PIONEER NAT RES CO COM 723787107 39,182 209,375 SH   SOLE N/A 209,375 0 0
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 1,134,706 20,586,094 SH   SOLE N/A 18,884,298 0 1,701,796
PLAINS GP HLDGS L P SHS A REP LTPN 72651A108 132,430 4,733,021 SH   SOLE N/A 4,461,317 0 271,704
RANGE RES CORP COM 75281A109 23,918 288,277 SH   SOLE N/A 288,277 0 0
REGENCY ENERGY PARTNERS L P COM UNITS L P 75885Y107 411,519 15,118,253 SH   SOLE N/A 14,181,170 0 937,083
RICE ENERGY INC COM 762760106 2,467 93,496 SH   SOLE N/A 93,496 0 0
ROSE ROCK MIDSTREAM L P COM U REP LTD 777149105 18,204 438,745 SH   SOLE N/A 438,745 0 0
ROYAL DUTCH SHELL PLC SPONS ADR A 780259206 8,365 114,500 SH   SOLE N/A 114,500 0 0
RSP PERMIAN INC COM 74978Q105 3,348 115,886 SH   SOLE N/A 115,886 0 0
SCHLUMBERGER LTD COM 806857108 2 21 SH   SOLE N/A 21 0 0
SEADRILL PARTNERS LLC COMUNIT REP LB Y7545W109 2,700 90,000 SH   SOLE N/A 90,000 0 0
SEMGROUP CORP CL A 81663A105 40,662 619,100 SH   SOLE N/A 619,100 0 0
SEMPRA ENERGY COM 816851109 14,143 146,164 SH   SOLE N/A 146,164 0 0
SPECTRA ENERGY CORP COM 847560109 362,666 9,817,713 SH   SOLE N/A 8,993,346 0 824,367
SPECTRA ENERGY PARTNERS LP COM 84756N109 482,024 9,847,276 SH   SOLE N/A 9,386,413 0 460,863
SUMMIT MIDSTREAM PARTNERS LP COM UNIT LTD 866142102 39,743 923,600 SH   SOLE N/A 923,600 0 0
SUNCOR ENERGY INC NEW COM 867224107 11,053 316,151 SH   SOLE N/A 316,151 0 0
SUNOCO LOGISTICS PRTNRS L P COM UNITS 86764L108 921,722 10,142,187 SH   SOLE N/A 9,275,163 0 867,024
TARGA RESOURCES PARTNERS LP COM UNIT 87611X105 313,697 5,575,853 SH   SOLE N/A 5,204,069 0 371,784
TARGA RES CORP COM 87612G101 43,715 440,409 SH   SOLE N/A 440,409 0 0
TEEKAY LNG PARTNERS L P PRTNRSP UNITS Y8564M105 2,211 53,500 SH   SOLE N/A 53,500 0 0
TEEKAY OFFSHORE PARTNERS L P PARTNERSHIP UN Y8565J101 8,695 265,730 SH   SOLE N/A 265,730 0 0
TESORO CORP COM 881609101 127 2,520 SH   SOLE N/A 2,520 0 0
TESORO LOGISTICS LP COM UNIT LP 88160T107 336,007 5,580,579 SH   SOLE N/A 5,056,633 0 523,946
TRANSCANADA CORP COM 89353D107 63,143 1,387,143 SH   SOLE N/A 1,387,143 0 0
U S SILICA HLDGS INC COM 90346E103 75 1,976 SH   SOLE N/A 1,976 0 0
VALERO ENERGY CORP NEW COM 91913Y100 328 6,173 SH   SOLE N/A 6,173 0 0
VALERO ENERGY PARTNERS LP COM UNT REP LP 91914J102 103,396 2,611,678 SH   SOLE N/A 2,369,968 0 241,710
VANGUARD NAT RES LLC COM UNIT 92205F106 11,339 380,900 SH   SOLE N/A 380,900 0 0
WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 103,046 2,098,276 SH   SOLE N/A 1,821,589 0 276,687
WESTERN GAS PARTNERS LP COM UNIT LP IN 958254104 517,296 7,815,317 SH   SOLE N/A 7,216,309 0 599,008
WESTERN REFNG INC COM 959319104 99 2,569 SH   SOLE N/A 2,569 0 0
WESTLAKE CHEM CORP COM 960413102 150 2,262 SH   SOLE N/A 2,262 0 0
WHITING PETE CORP NEW COM 966387102 7,726 111,346 SH   SOLE N/A 111,346 0 0
WILLIAMS COS INC DEL COM 969457100 292,213 7,200,916 SH   SOLE N/A 6,680,135 0 520,781
WILLIAMS PARTNERS L P COM UNIT L P 96950F104 205,818 4,040,400 SH   SOLE N/A 4,040,400 0 0
WISCONSIN ENERGY CORP COM 976657106 1 30 SH   SOLE N/A 30 0 0