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 476,955 9,999,051 SH   SOLE N/A 9,437,837 0 561,214
ANADARKO PETE CORP COM 032511107 27,585 321,018 SH   SOLE N/A 321,018 0 0
APACHE CORP COM 037411105 17,087 203,825 SH   SOLE N/A 203,825 0 0
BAKER HUGHES INC COM 057224107 1 24 SH   SOLE N/A 24 0 0
BOARDWALK PIPELINE PARTNERS UT LTD PARTNER 096627104 241,501 7,996,712 SH   SOLE N/A 7,996,712 0 0
BP PLC SPONSORED ADR 055622104 10,961 262,600 SH   SOLE N/A 262,600 0 0
BREITBURN ENERGY PARTNERS LP COM UT LTD PTN 106776107 12,674 694,488 SH   SOLE N/A 694,488 0 0
BUCKEYE PARTNERS L P UNIT LTD PARTN 118230101 552,286 7,871,806 SH   SOLE N/A 7,396,437 0 475,369
CABOT OIL & GAS CORP COM 127097103 17,262 243,055 SH   SOLE N/A 243,055 0 0
CAMERON INTERNATIONAL CORP COM 13342B105 2 33 SH   SOLE N/A 33 0 0
CANADIAN NAT RES LTD COM 136385101 5,404 191,240 SH   SOLE N/A 191,240 0 0
CARRIZO OIL & GAS INC COM 144577103 82 2,880 SH   SOLE N/A 2,880 0 0
CENOVUS ENERGY INC COM 15135U109 3,756 131,690 SH   SOLE N/A 131,690 0 0
CENTERPOINT ENERGY INC COM 15189T107 71,953 3,063,126 SH   SOLE N/A 3,063,126 0 0
CHESAPEAKE ENERGY CORP COM 165167107 11,982 587,916 SH   SOLE N/A 587,916 0 0
CHEVRON CORP NEW COM 166764100 9,766 82,523 SH   SOLE N/A 82,523 0 0
CIMAREX ENERGY CO COM 171798101 106 1,625 SH   SOLE N/A 1,625 0 0
CMS ENERGY CORP COM 125896100 1 20 SH   SOLE N/A 20 0 0
CONCHO RES INC COM 20605P101 6,834 81,630 SH   SOLE N/A 81,630 0 0
CONOCOPHILLIPS COM 20825C104 8,393 138,725 SH   SOLE N/A 138,725 0 0
CONTINENTAL RESOURCES INC COM 212015101 20,925 243,140 SH   SOLE N/A 243,140 0 0
CRESTWOOD MIDSTREAM PRTNERS COM UNITS REPSTG 226372100 42,360 1,697,800 SH   SOLE N/A 1,697,800 0 0
DCP MIDSTREAM PARTNERS LP COM UT LTD PTN 23311P100 341,471 6,311,855 SH   SOLE N/A 6,002,594 0 309,261
DENBURY RES INC COM NEW 247916208 1,284 74,135 SH   SOLE N/A 74,135 0 0
DEVON ENERGY CORP NEW COM 25179M103 7,282 140,355 SH   SOLE N/A 140,355 0 0
DOMINION RES INC VA NEW COM 25746U109 1 10 SH   SOLE N/A 10 0 0
EASTMAN CHEM CO COM 277432100 5 70 SH   SOLE N/A 70 0 0
EL PASO PIPELINE PARTNERS L COM UNIT LPI 283702108 495,358 11,343,206 SH   SOLE N/A 10,770,119 0 573,087
ENBRIDGE ENERGY MANAGEMENT L SHS UNITS LLI 29250X103 44,070 1,455,421 SH   SOLE N/A 1,455,421 0 0
ENBRIDGE ENERGY PARTNERS L P COM 29250R106 164,317 5,389,204 SH   SOLE N/A 5,389,204 0 0
ENBRIDGE INC COM 29250N105 74,338 1,767,012 SH   SOLE N/A 1,767,012 0 0
ENCANA CORP COM 292505104 65 3,855 SH   SOLE N/A 3,855 0 0
ENERGEN CORP COM 29265N108 103 1,964 SH   SOLE N/A 1,964 0 0
ENERGY TRANSFER EQUITY L P COM UT LTD PTN 29273V100 423,485 7,079,329 SH   SOLE N/A 6,479,817 0 599,512
ENERGY TRANSFER PRTNRS L P UNIT LTD PARTN 29273R109 432,365 8,554,908 SH   SOLE N/A 8,326,038 0 228,870
ENERPLUS CORP COM 292766102 4,079 275,800 SH   SOLE N/A 275,800 0 0
ENSCO PLC SHS CLASS A G3157S106 3 49 SH   SOLE N/A 49 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 922,219 14,838,603 SH   SOLE N/A 13,985,111 0 853,492
EOG RES INC COM 26875P101 28,104 213,429 SH   SOLE N/A 213,429 0 0
EQT CORP COM 26884L109 49,169 619,495 SH   SOLE N/A 619,495 0 0
EQT MIDSTREAM PARTNERS LP UNIT LTD PARTN 26885B100 82,795 1,694,892 SH   SOLE N/A 1,603,697 0 91,195
EV ENERGY PARTNERS LP COM UNITS 26926V107 5,819 155,700 SH   SOLE N/A 155,700 0 0
EXXON MOBIL CORP COM 30231G102 1,475 16,329 SH   SOLE N/A 16,329 0 0
FIRSTENERGY CORP COM 337932107 0 12 SH   SOLE N/A 12 0 0
GENESIS ENERGY L P UNIT LTD PARTN 371927104 75,783 1,462,140 SH   SOLE N/A 1,351,625 0 110,515
HALLIBURTON CO COM 406216101 3 79 SH   SOLE N/A 79 0 0
HESS CORP COM 42809H107 5,258 79,076 SH   SOLE N/A 79,076 0 0
HOLLY ENERGY PARTNERS L P COM UT LTD PTN 435763107 173,112 4,550,781 SH   SOLE N/A 4,417,814 0 132,967
HOLLYFRONTIER CORP COM 436106108 1 34 SH   SOLE N/A 34 0 0
INERGY MIDSTREAM LP U LTD PARTNERS 45671U106 70,398 3,165,387 SH   SOLE N/A 3,165,387 0 0
KINDER MORGAN ENERGY PARTNER UT LTD PARTNER 494550106 345,248 4,042,719 SH   SOLE N/A 3,745,720 0 296,999
KINDER MORGAN INC DEL COM 49456B101 98,974 2,594,343 SH   SOLE N/A 2,452,849 0 141,494
KINDER MORGAN MANAGEMENT LLC SHS 49455U100 286,118 3,422,868 SH   SOLE N/A 3,422,866 0 2
LEGACY RESERVES LP UNIT LP INT 524707304 8,540 321,055 SH   SOLE N/A 321,055 0 0
LINN ENERGY LLC UNIT LTD LIAB 536020100 18,462 556,420 SH   SOLE N/A 556,420 0 0
LYONDELLBASELL INDUSTRIES N SHS - A - N53745100 6 89 SH   SOLE N/A 89 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 847,356 15,547,811 SH   SOLE N/A 14,557,664 0 990,147
MARATHON OIL CORP COM 565849106 14,513 419,698 SH   SOLE N/A 419,698 0 0
MARATHON PETE CORP COM 56585A102 3 37 SH   SOLE N/A 37 0 0
MARKWEST ENERGY PARTNERS L P UNIT LTD PARTN 570759100 318,815 4,769,116 SH   SOLE N/A 4,480,952 0 288,164
MPLX LP COM UNIT REP LTD 55336V100 170,985 4,645,063 SH   SOLE N/A 4,379,046 0 266,017
MURPHY OIL CORP COM 626717102 1 9 SH   SOLE N/A 9 0 0
NATIONAL FUEL GAS CO N J COM 636180101 26,316 454,111 SH   SOLE N/A 454,111 0 0
NATIONAL OILWELL VARCO INC COM 637071101 0 7 SH   SOLE N/A 7 0 0
NEWFIELD EXPL CO COM 651290108 1,440 60,295 SH   SOLE N/A 60,295 0 0
NEXTERA ENERGY INC COM 65339F101 1 7 SH   SOLE N/A 7 0 0
NISOURCE INC COM 65473P105 66,516 2,322,498 SH   SOLE N/A 2,322,498 0 0
NOBLE CORPORATION BAAR NAMEN -AKT H5833N103 3 85 SH   SOLE N/A 85 0 0
NOBLE ENERGY INC COM 655044105 9,505 158,305 SH   SOLE N/A 158,305 0 0
NUSTAR ENERGY LP UNIT COM 67058H102 99,407 2,177,600 SH   SOLE N/A 2,177,600 0 0
OCCIDENTAL PETE CORP DEL COM 674599105 26,303 294,783 SH   SOLE N/A 294,783 0 0
OGE ENERGY CORP COM 670837103 12,560 184,162 SH   SOLE N/A 184,162 0 0
OIL STS INTL INC COM 678026105 2 25 SH   SOLE N/A 25 0 0
OILTANKING PARTNERS L P UNIT LTD 678049107 114,676 2,257,404 SH   SOLE N/A 2,120,960 0 136,444
ONEOK PARTNERS LP UNIT LTD PARTN 68268N103 152,903 3,087,705 SH   SOLE N/A 3,087,705 0 0
ONEOK INC NEW COM 682680103 53,295 1,290,134 SH   SOLE N/A 1,290,134 0 0
PEMBINA PIPELINE CORP COM 706327103 38,875 1,270,517 SH   SOLE N/A 1,270,517 0 0
PENN WEST PETE LTD NEW COM 707887105 68 6,400 SH   SOLE N/A 6,400 0 0
PHILLIPS 66 COM 718546104 3 47 SH   SOLE N/A 47 0 0
PIONEER NAT RES CO COM 723787107 31,909 220,442 SH   SOLE N/A 220,442 0 0
PIONEER SOUTHWST ENRG PRTNR UNIT LP INT 72388B106 9,975 291,000 SH   SOLE N/A 291,000 0 0
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 867,108 15,536,790 SH   SOLE N/A 14,581,563 0 955,227
QUESTAR CORP COM 748356102 30,040 1,259,550 SH   SOLE N/A 1,259,550 0 0
RANGE RES CORP COM 75281A109 19,789 255,934 SH   SOLE N/A 255,934 0 0
REGENCY ENERGY PARTNERS L P COM UNITS L P 75885Y107 456,420 16,923,249 SH   SOLE N/A 16,265,229 0 658,020
ROSE ROCK MIDSTREAM L P COM U REP LTD 777149105 16,067 438,745 SH   SOLE N/A 438,745 0 0
ROYAL DUTCH SHELL PLC SPONS ADR A 780259206 7,305 114,500 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 2,642 90,000 SH   SOLE N/A 90,000 0 0
SEMGROUP CORP CL A 81663A105 20,454 379,760 SH   SOLE N/A 379,760 0 0
SEMPRA ENERGY COM 816851109 8,651 105,807 SH   SOLE N/A 105,807 0 0
SOUTHERN CO COM 842587107 0 11 SH   SOLE N/A 11 0 0
SOUTHWESTERN ENERGY CO COM 845467109 5,577 152,680 SH   SOLE N/A 152,680 0 0
SPECTRA ENERGY CORP COM 847560109 205,984 5,977,469 SH   SOLE N/A 5,723,634 0 253,835
SPECTRA ENERGY PARTNERS LP COM 84756N109 364,924 7,933,127 SH   SOLE N/A 7,646,122 0 287,005
SUMMIT MIDSTREAM PARTNERS LP COM UNIT LTD 866142102 18,899 553,400 SH   SOLE N/A 553,400 0 0
SUNCOR ENERGY INC NEW COM 867224107 5,550 188,215 SH   SOLE N/A 188,215 0 0
SUNOCO LOGISTICS PRTNRS L P COM UNITS 86764L108 580,520 9,077,716 SH   SOLE N/A 8,573,291 0 504,425
TARGA RESOURCES PARTNERS LP COM UNIT 87611X105 288,604 5,720,592 SH   SOLE N/A 5,434,506 0 286,086
TARGA RES CORP COM 87612G101 27,289 424,209 SH   SOLE N/A 424,209 0 0
TC PIPELINES LP UT COM LTD PRT 87233Q108 80,743 1,672,400 SH   SOLE N/A 1,672,400 0 0
TEEKAY LNG PARTNERS L P PRTNRSP UNITS Y8564M105 2,338 53,500 SH   SOLE N/A 53,500 0 0
TEEKAY OFFSHORE PARTNERS L P PARTNERSHIP UN Y8565J101 8,963 276,030 SH   SOLE N/A 276,030 0 0
TESORO LOGISTICS LP COM UNIT LP 88160T107 203,197 3,360,848 SH   SOLE N/A 3,138,044 0 222,804
TRANSCANADA CORP COM 89353D107 62,350 1,446,309 SH   SOLE N/A 1,446,309 0 0
TRINITY INDS INC COM 896522109 3 66 SH   SOLE N/A 66 0 0
VALERO ENERGY CORP NEW COM 91913Y100 2 53 SH   SOLE N/A 53 0 0
VANGUARD NATURAL RESOURCES L COM UNIT 92205F106 8,094 290,100 SH   SOLE N/A 290,100 0 0
WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 92,113 2,237,392 SH   SOLE N/A 2,056,004 0 181,388
WESTERN GAS PARTNERS LP COM UNIT LP IN 958254104 416,712 6,421,819 SH   SOLE N/A 6,070,552 0 351,267
WESTERN REFNG INC COM 959319104 1 25 SH   SOLE N/A 25 0 0
WESTLAKE CHEM CORP COM 960413102 3 36 SH   SOLE N/A 36 0 0
WHITING PETE CORP NEW COM 966387102 10,419 226,057 SH   SOLE N/A 226,057 0 0
WILLIAMS COS INC DEL COM 969457100 253,098 7,794,820 SH   SOLE N/A 7,308,763 0 486,057
WILLIAMS PARTNERS L P COM UNIT L P 96950F104 231,750 4,491,287 SH   SOLE N/A 4,491,287 0 0
WISCONSIN ENERGY CORP COM 976657106 8,904 217,213 SH   SOLE N/A 217,213 0 0