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
GASLOG LTD SHS G37585109 1,058 73,497 SH   SOLE 0 73,497 0 0
NABORS INDUSTRIES LTD SHS G6359F103 686 236,390 SH   SOLE 0 236,390 0 0
TECHNIPFMC PLC COM G87110105 1,527 58,880 SH   SOLE 0 58,880 0 0
GOLAR LNG LTD BERMUDA SHS G9456A100 2,090 113,090 SH   SOLE 0 113,090 0 0
TRANSOCEAN LTD REG SHS H8817H100 556 86,780 SH   SOLE 0 86,780 0 0
GASLOG PARTNERS LP UNIT LTD PTNRP Y2687W108 4,761 224,258 SH   SOLE 0 224,258 0 0
GOLAR LNG PARTNERS LP COM UNIT LPI Y2745C102 2,221 196,551 SH   SOLE 0 196,551 0 0
ALTUS MIDSTREAM CO CL A 02215L100 15,614 4,197,309 SH   SOLE 0 4,197,309 0 0
ANDEAVOR LOGISTICS LP COM UNIT LP INT 03350F106 3,486 95,943 SH   SOLE 0 95,943 0 0
ANTERO MIDSTREAM CORP COM 03676B102 69,532 6,067,355 SH   SOLE 0 6,067,355 0 0
ARCHROCK INC COM 03957W106 719 67,846 SH   SOLE 0 67,846 0 0
BP MIDSTREAM PARTNERS LP UNIT LTD PTNR 0556EL109 46,717 3,017,887 SH   SOLE 0 3,017,887 0 0
BUCKEYE PARTNERS L P UNIT LTD PARTN 118230101 670 16,313 SH   SOLE 0 16,313 0 0
CNX MIDSTREAM PARTNERS LP COM UNIT REPST 12654A101 518 36,837 SH   SOLE 0 36,837 0 0
CABOT OIL & GAS CORP COM 127097103 987 42,990 SH   SOLE 0 42,990 0 0
CHENIERE ENERGY PARTNERS LP COM UNIT 16411Q101 689 16,341 SH   SOLE 0 16,341 0 0
CHENIERE ENERGY INC COM NEW 16411R208 174,271 2,545,966 SH   SOLE 0 2,545,966 0 0
CIMAREX ENERGY CO COM 171798101 1,359 22,900 SH   SOLE 0 22,900 0 0
CONCHO RES INC COM 20605P101 1,169 11,327 SH   SOLE 0 11,327 0 0
CONOCOPHILLIPS COM 20825C104 817 13,399 SH   SOLE 0 13,399 0 0
CONTINENTAL RESOURCES INC COM 212015101 1,360 32,320 SH   SOLE 0 32,320 0 0
CRESTWOOD EQUITY PARTNERS LP UNIT LTD PARTNER 226344208 9,222 257,803 SH   SOLE 0 257,803 0 0
DCP MIDSTREAM LP COM UT LTD PTN 23311P100 5,251 179,199 SH   SOLE 0 179,199 0 0
DEVON ENERGY CORP NEW COM 25179M103 1,861 65,260 SH   SOLE 0 65,260 0 0
DIAMONDBACK ENERGY INC COM 25278X109 1,946 17,860 SH   SOLE 0 17,860 0 0
EQT CORP COM 26884L109 636 40,250 SH   SOLE 0 40,250 0 0
EQM MIDSTREAM PARTNERS LP UNIT LTD PARTN 26885B100 27,966 625,907 SH   SOLE 0 625,907 0 0
ENABLE MIDSTREAM PARTNERS LP COM UNIT RP IN 292480100 5,319 387,979 SH   SOLE 0 387,979 0 0
ENBRIDGE INC COM 29250N105 382,165 10,584,696 SH   SOLE 0 10,584,696 0 0
ENERGY TRANSFER LP COM UT LTD PTN 29273V100 345,261 24,521,355 SH   SOLE 0 24,521,355 0 0
ENLINK MIDSTREAM LLC COM UNIT REP LTD 29336T100 70,137 6,951,152 SH   SOLE 0 6,951,152 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 398,121 13,790,143 SH   SOLE 0 13,790,143 0 0
ENVIVA PARTNERS LP COM UNIT 29414J107 859 27,332 SH   SOLE 0 27,332 0 0
EQUITRANS MIDSTREAM CORPORAT COM 294600101 18,213 924,068 SH   SOLE 0 924,068 0 0
EXXON MOBIL CORP COM 30231G102 1,426 18,608 SH   SOLE 0 18,608 0 0
GENESIS ENERGY L P UNIT LTD PARTN 371927104 103,378 4,720,475 SH   SOLE 0 4,720,475 0 0
HALLIBURTON CO COM 406216101 1,173 51,570 SH   SOLE 0 51,570 0 0
HESS CORP COM 42809H107 1,446 22,740 SH   SOLE 0 22,740 0 0
HOLLY ENERGY PARTNERS L P COM UT LTD PTN 435763107 2,041 74,211 SH   SOLE 0 74,211 0 0
JPMORGAN CHASE & CO ALERIAN ML ETN 46625H365 2,418 96,305 SH   SOLE 0 96,305 0 0
KINDER MORGAN INC DEL COM 49456B101 60,307 2,888,243 SH   SOLE 0 2,888,243 0 0
MPLX LP COM UNIT REP LTD 55336V100 173,803 5,399,281 SH   SOLE 0 5,399,281 0 0
MACQUARIE INFRASTRUCTURE COR COM 55608B105 6,988 172,365 SH   SOLE 0 172,365 0 0
MAGELLAN MIDSTREAM PRTNRS LP COM UNIT RP LP 559080106 72,754 1,136,786 SH   SOLE 0 1,136,786 0 0
MARATHON OIL CORP COM 565849106 1,582 111,350 SH   SOLE 0 111,350 0 0
MARATHON PETE CORP COM 56585A102 1,109 19,852 SH   SOLE 0 19,852 0 0
MARTIN MIDSTREAM PRTNRS L P UNIT L P INT 573331105 460 64,483 SH   SOLE 0 64,483 0 0
NGL ENERGY PARTNERS LP COM UNIT REPST 62913M107 58,467 3,958,515 SH   SOLE 0 3,958,515 0 0
NEXTERA ENERGY PARTNERS LP COM UNIT PART IN 65341B106 18,142 375,994 SH   SOLE 0 375,994 0 0
NOBLE ENERGY INC COM 655044105 1,188 53,020 SH   SOLE 0 53,020 0 0
NOBLE MIDSTREAM PARTNERS LP COM UNIT REPST 65506L105 51,062 1,535,248 SH   SOLE 0 1,535,248 0 0
NUSTAR ENERGY LP UNIT COM 67058H102 670 24,691 SH   SOLE 0 24,691 0 0
OASIS MIDSTREAM PARTNERS LP COM UNITS REPS 67420T206 2,054 95,542 SH   SOLE 0 95,542 0 0
ONEOK INC NEW COM 682680103 194,088 2,820,642 SH   SOLE 0 2,820,642 0 0
PARSLEY ENERGY INC CL A 701877102 1,761 92,615 SH   SOLE 0 92,615 0 0
PATTERSON UTI ENERGY INC COM 703481101 862 74,930 SH   SOLE 0 74,930 0 0
PEMBINA PIPELINE CORP COM 706327103 299,882 8,051,522 SH   SOLE 0 8,051,522 0 0
PHILLIPS 66 PARTNERS LP COM UNIT REP INT 718549207 69,438 1,407,042 SH   SOLE 0 1,407,042 0 0
PIONEER NAT RES CO COM 723787107 1,750 11,377 SH   SOLE 0 11,377 0 0
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 189,597 7,786,317 SH   SOLE 0 7,786,317 0 0
PLAINS GP HLDGS L P LTD PARTNR INT A 72651A207 69,031 2,764,558 SH   SOLE 0 2,764,558 0 0
PROPETRO HLDG CORP COM 74347M108 1,220 58,950 SH   SOLE 0 58,950 0 0
RANGE RES CORP COM 75281A109 557 79,740 SH   SOLE 0 79,740 0 0
RATTLER MIDSTREAM LP COM UNITS 75419T103 33,212 1,712,842 SH   SOLE 0 1,712,842 0 0
ROYAL DUTCH SHELL PLC SPONS ADR A 780259206 1,489 22,890 SH   SOLE 0 22,890 0 0
SCHLUMBERGER LTD COM 806857108 972 24,470 SH   SOLE 0 24,470 0 0
SEMGROUP CORP CL A 81663A105 179 14,902 SH   SOLE 0 14,902 0 0
SHELL MIDSTREAM PARTNERS L P UNIT LTD INT 822634101 87,329 4,214,709 SH   SOLE 0 4,214,709 0 0
SOLARIS OILFIELD INFRSTR INC COM CL A 83418M103 590 39,387 SH   SOLE 0 39,387 0 0
SUNOCO LP COM UT REP LP 86765K109 1,639 52,401 SH   SOLE 0 52,401 0 0
TC PIPELINES LP UT COM LTD PRT 87233Q108 779 20,714 SH   SOLE 0 20,714 0 0
TALLGRASS ENERGY LP CLASS A SHS 874696107 90,097 4,267,987 SH   SOLE 0 4,267,987 0 0
TARGA RES CORP COM 87612G101 207,278 5,279,617 SH   SOLE 0 5,279,617 0 0
TC ENERGY CORP COM 87807B107 175,924 3,548,342 SH   SOLE 0 3,548,342 0 0
TELLURIAN INC NEW COM 87968A104 8,133 1,036,032 SH   SOLE 0 1,036,032 0 0
USA COMPRESSION PARTNERS LP COMUNIT LTDPAR 90290N109 1,769 99,565 SH   SOLE 0 99,565 0 0
USD PARTNERS LP COM UT REP LTD 903318103 327 28,971 SH   SOLE 0 28,971 0 0
VALERO ENERGY CORP NEW COM 91913Y100 929 10,850 SH   SOLE 0 10,850 0 0
VIPER ENERGY PARTNERS LP COM UNT RP INT 92763M105 1,054 34,207 SH   SOLE 0 34,207 0 0
WESTERN MIDSTREAM PARTNERS L COM UNIT LP INT 958669103 88,025 2,860,750 SH   SOLE 0 2,860,750 0 0
WESTLAKE CHEM PARTNERS LP COM UNIT RP LP 960417103 4,028 163,803 SH   SOLE 0 163,803 0 0
WILLIAMS COS INC DEL COM 969457100 367,603 13,109,945 SH   SOLE 0 13,109,945 0 0
WPX ENERGY INC COM 98212B103 1,706 148,184 SH   SOLE 0 148,184 0 0