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 477,334 9,880,640 SH   SOLE N/A 9,062,653 0 817,987
ANADARKO PETE CORP COM 032511107 35,593 382,759 SH   SOLE N/A 382,759 0 0
APACHE CORP COM 037411105 14,973 175,864 SH   SOLE N/A 175,864 0 0
BOARDWALK PIPELINE PARTNERS UT LTD PARTNER 096627104 243,279 8,010,500 SH   SOLE N/A 8,010,500 0 0
BP PLC SPONSORED ADR 055622104 11,037 262,600 SH   SOLE N/A 262,600 0 0
BREITBURN ENERGY PARTNERS LP COM UT LTD PTN 106776107 15,811 862,600 SH   SOLE N/A 862,600 0 0
BUCKEYE PARTNERS L P UNIT LTD PARTN 118230101 558,327 8,520,181 SH   SOLE N/A 7,732,812 0 787,369
CABOT OIL & GAS CORP COM 127097103 18,454 494,480 SH   SOLE N/A 494,480 0 0
CARRIZO OIL & GAS INC COM 144577103 429 11,495 SH   SOLE N/A 11,495 0 0
CENOVUS ENERGY INC COM 15135U109 6,633 222,200 SH   SOLE N/A 222,200 0 0
CENTERPOINT ENERGY INC COM 15189T107 82,563 3,444,426 SH   SOLE N/A 3,444,426 0 0
CHESAPEAKE ENERGY CORP COM 165167107 14,839 573,362 SH   SOLE N/A 573,362 0 0
CHEVRON CORP NEW COM 166764100 8,556 70,420 SH   SOLE N/A 70,420 0 0
CIMAREX ENERGY CO COM 171798101 620 6,435 SH   SOLE N/A 6,435 0 0
CONCHO RES INC COM 20605P101 10,050 92,360 SH   SOLE N/A 92,360 0 0
CONOCOPHILLIPS COM 20825C104 9,643 138,735 SH   SOLE N/A 138,735 0 0
CONTINENTAL RESOURCES INC COM 212015101 27,545 256,810 SH   SOLE N/A 256,810 0 0
CRESTWOOD MIDSTREAM PRTNERS COM UNITS REPSTG 226372100 42,207 1,697,800 SH   SOLE N/A 1,697,800 0 0
DCP MIDSTREAM PARTNERS LP COM UT LTD PTN 23311P100 334,015 6,726,031 SH   SOLE N/A 6,208,695 0 517,336
DENBURY RES INC COM NEW 247916208 216 11,750 SH   SOLE N/A 11,750 0 0
EASTMAN CHEM CO COM 277432100 7 93 SH   SOLE N/A 93 0 0
EL PASO PIPELINE PARTNERS L COM UNIT LPI 283702108 442,714 10,485,875 SH   SOLE N/A 9,872,853 0 613,022
ENBRIDGE ENERGY MANAGEMENT L SHS UNITS LLI 29250X103 42,602 1,480,253 SH   SOLE N/A 1,480,253 0 0
ENBRIDGE ENERGY PARTNERS L P COM 29250R106 164,101 5,389,204 SH   SOLE N/A 5,389,204 0 0
ENBRIDGE INC COM 29250N105 66,426 1,591,415 SH   SOLE N/A 1,591,415 0 0
ENERGEN CORP COM 29265N108 733 9,600 SH   SOLE N/A 9,600 0 0
ENERGY TRANSFER EQUITY L P COM UT LTD PTN 29273V100 482,015 7,327,679 SH   SOLE N/A 6,370,306 0 957,373
ENERGY TRANSFER PRTNRS L P UNIT LTD PARTN 29273R109 458,614 8,807,646 SH   SOLE N/A 8,416,918 0 390,728
ENERPLUS CORP COM 292766102 4,576 275,800 SH   SOLE N/A 275,800 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 933,237 15,288,936 SH   SOLE N/A 13,956,134 0 1,332,802
EOG RES INC COM 26875P101 35,861 211,846 SH   SOLE N/A 211,846 0 0
EQT CORP COM 26884L109 78,912 889,447 SH   SOLE N/A 889,447 0 0
EQT MIDSTREAM PARTNERS LP UNIT LTD PARTN 26885B100 112,382 2,282,791 SH   SOLE N/A 2,108,018 0 174,773
EV ENERGY PARTNERS LP COM UNITS 26926V107 5,775 155,700 SH   SOLE N/A 155,700 0 0
EXXON MOBIL CORP COM 30231G102 2 21 SH   SOLE N/A 21 0 0
GENESIS ENERGY L P UNIT LTD PARTN 371927104 155,987 3,115,373 SH   SOLE N/A 2,722,818 0 392,555
HALLIBURTON CO COM 406216101 2 37 SH   SOLE N/A 37 0 0
HESS CORP COM 42809H107 7,537 97,451 SH   SOLE N/A 97,451 0 0
HOLLY ENERGY PARTNERS L P COM UT LTD PTN 435763107 103,391 3,126,438 SH   SOLE N/A 3,126,158 0 280
INERGY MIDSTREAM LP U LTD PARTNERS 45671U106 69,741 3,158,577 SH   SOLE N/A 3,158,577 0 0
JONES ENERGY INC COM CL A 48019R108 5,241 319,395 SH   SOLE N/A 319,395 0 0
KINDER MORGAN ENERGY PARTNER UT LTD PARTNER 494550106 296,536 3,714,589 SH   SOLE N/A 3,299,811 0 414,778
KINDER MORGAN INC DEL COM 49456B101 106,198 2,985,601 SH   SOLE N/A 2,752,296 0 233,305
KINDER MORGAN MANAGEMENT LLC SHS 49455U100 260,606 3,476,601 SH   SOLE N/A 3,476,601 0 0
LEGACY RESERVES LP UNIT LP INT 524707304 13,705 507,200 SH   SOLE N/A 507,200 0 0
LINN ENERGY LLC UNIT LTD LIAB 536020100 5,350 206,400 SH   SOLE N/A 206,400 0 0
LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 8 114 SH   SOLE N/A 114 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 916,107 16,234,405 SH   SOLE N/A 14,663,892 0 1,570,513
MARATHON OIL CORP COM 565849106 15,230 436,647 SH   SOLE N/A 436,647 0 0
MARKWEST ENERGY PARTNERS L P UNIT LTD PARTN 570759100 440,633 6,100,415 SH   SOLE N/A 5,522,344 0 578,071
MPLX LP COM UNIT REP LTD 55336V100 183,286 5,029,812 SH   SOLE N/A 4,563,343 0 466,469
NATIONAL FUEL GAS CO N J COM 636180101 31,245 454,406 SH   SOLE N/A 454,406 0 0
NEWFIELD EXPL CO COM 651290108 1,720 62,825 SH   SOLE N/A 62,825 0 0
NEXTERA ENERGY INC COM 65339F101 4 48 SH   SOLE N/A 48 0 0
NISOURCE INC COM 65473P105 76,868 2,488,428 SH   SOLE N/A 2,488,428 0 0
NOBLE ENERGY INC COM 655044105 11,090 165,500 SH   SOLE N/A 165,500 0 0
NRG YIELD INC COM CL A 62942X108 18,768 619,625 SH   SOLE N/A 619,625 0 0
NUSTAR ENERGY LP UNIT COM 67058H102 77,464 1,931,300 SH   SOLE N/A 1,931,300 0 0
OCCIDENTAL PETE CORP DEL COM 674599105 28,298 302,525 SH   SOLE N/A 302,525 0 0
OGE ENERGY CORP COM 670837103 14,895 412,724 SH   SOLE N/A 412,724 0 0
OIL STS INTL INC COM 678026105 4 35 SH   SOLE N/A 35 0 0
OILTANKING PARTNERS L P UNIT LTD 678049107 125,471 2,447,733 SH   SOLE N/A 2,208,051 0 239,682
ONEOK PARTNERS LP UNIT LTD PARTN 68268N103 161,765 3,051,600 SH   SOLE N/A 3,051,600 0 0
ONEOK INC NEW COM 682680103 199,366 3,739,046 SH   SOLE N/A 3,392,695 0 346,351
PEMBINA PIPELINE CORP COM 706327103 48,046 1,449,617 SH   SOLE N/A 1,449,617 0 0
PENN WEST PETE LTD NEW COM 707887105 71 6,400 SH   SOLE N/A 6,400 0 0
PHILLIPS 66 PARTNERS LP COM UNIT REP INT 718549207 58,873 1,913,933 SH   SOLE N/A 1,786,676 0 127,257
PIONEER NAT RES CO COM 723787107 44,004 233,073 SH   SOLE N/A 233,073 0 0
PIONEER SOUTHWST ENRG PRTNR UNIT LP INT 72388B106 12,871 291,000 SH   SOLE N/A 291,000 0 0
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 883,879 16,784,644 SH   SOLE N/A 15,218,085 0 1,566,559
QUESTAR CORP COM 748356102 32,386 1,440,010 SH   SOLE N/A 1,440,010 0 0
RANGE RES CORP COM 75281A109 19,845 261,499 SH   SOLE N/A 261,499 0 0
REGENCY ENERGY PARTNERS L P COM UNITS L P 75885Y107 505,256 17,666,283 SH   SOLE N/A 16,533,843 0 1,132,440
ROSE ROCK MIDSTREAM L P COM U REP LTD 777149105 14,018 438,745 SH   SOLE N/A 438,745 0 0
ROYAL DUTCH SHELL PLC SPONS ADR A 780259206 7,520 114,500 SH   SOLE N/A 114,500 0 0
SCHLUMBERGER LTD COM 806857108 2 21 SH   SOLE N/A 21 0 0
SEADRILL PARTNERS LLC COMUNIT REP LB Y7545W109 2,939 90,000 SH   SOLE N/A 90,000 0 0
SEMGROUP CORP CL A 81663A105 25,659 450,000 SH   SOLE N/A 450,000 0 0
SEMPRA ENERGY COM 816851109 9,614 112,314 SH   SOLE N/A 112,314 0 0
SOUTHWESTERN ENERGY CO COM 845467109 5,709 156,920 SH   SOLE N/A 156,920 0 0
SPECTRA ENERGY CORP COM 847560109 291,986 8,530,113 SH   SOLE N/A 7,763,043 0 767,070
SPECTRA ENERGY PARTNERS LP COM 84756N109 351,692 8,014,858 SH   SOLE N/A 7,654,528 0 360,330
SUMMIT MIDSTREAM PARTNERS LP COM UNIT LTD 866142102 18,788 553,400 SH   SOLE N/A 553,400 0 0
SUNCOR ENERGY INC NEW COM 867224107 13,125 366,826 SH   SOLE N/A 366,826 0 0
SUNOCO LOGISTICS PRTNRS L P COM UNITS 86764L108 648,496 9,759,150 SH   SOLE N/A 8,870,275 0 888,875
TARGA RESOURCES PARTNERS LP COM UNIT 87611X105 305,645 5,938,314 SH   SOLE N/A 5,480,133 0 458,181
TARGA RES CORP COM 87612G101 32,862 450,409 SH   SOLE N/A 450,409 0 0
TC PIPELINES LP UT COM LTD PRT 87233Q108 65,896 1,353,100 SH   SOLE N/A 1,353,100 0 0
TEEKAY LNG PARTNERS L P PRTNRSP UNITS Y8564M105 2,360 53,500 SH   SOLE N/A 53,500 0 0
TEEKAY OFFSHORE PARTNERS L P PARTNERSHIP UN Y8565J101 8,865 265,730 SH   SOLE N/A 265,730 0 0
TESORO LOGISTICS LP COM UNIT LP 88160T107 233,227 4,021,162 SH   SOLE N/A 3,596,148 0 425,014
TRANSCANADA CORP COM 89353D107 53,238 1,211,600 SH   SOLE N/A 1,211,600 0 0
VANGUARD NATURAL RESOURCES L COM UNIT 92205F106 9,219 329,500 SH   SOLE N/A 329,500 0 0
WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 85,571 2,300,915 SH   SOLE N/A 2,011,074 0 289,841
WESTERN GAS PARTNERS LP COM UNIT LP IN 958254104 397,842 6,616,371 SH   SOLE N/A 6,047,767 0 568,604
WESTLAKE CHEM CORP COM 960413102 4 36 SH   SOLE N/A 36 0 0
WHITING PETE CORP NEW COM 966387102 12,941 216,218 SH   SOLE N/A 216,218 0 0
WILLIAMS COS INC DEL COM 969457100 230,258 6,332,741 SH   SOLE N/A 5,790,534 0 542,207
WILLIAMS PARTNERS L P COM UNIT L P 96950F104 237,499 4,491,287 SH   SOLE N/A 4,491,287 0 0
WISCONSIN ENERGY CORP COM 976657106 9,975 247,030 SH   SOLE N/A 247,030 0 0