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
8POINT3 ENERGY PARTNERS LP CL A RPT LTDPT 282539105 257 17,014 SH   SOLE   17,014 0 0
ALLETE INC COM NEW 018522300 1,083 15,108 SH   SOLE   15,108 0 0
AMERICAN WTR WKS CO INC NEW COM 030420103 4,198 53,857 SH   SOLE   53,857 0 0
ANADARKO PETE CORP COM 032511107 21,426 472,570 SH   SOLE   472,570 0 0
ANTERO MIDSTREAM GP LP COM SHS REPSTG 03675Y103 12,335 561,170 SH   SOLE   561,170 0 0
ANTERO MIDSTREAM PARTNERS LP UNT LTD PARTN 03673L103 27,393 825,596 SH   SOLE   825,596 0 0
ANTERO RES CORP COM 03674X106 262 12,111 SH   SOLE   12,111 0 0
AQUA AMERICA INC COM 03836W103 1,801 54,099 SH   SOLE   54,099 0 0
ATLANTICA YIELD PLC SHS G0751N103 2,384 111,610 SH   SOLE   111,610 0 0
ATMOS ENERGY CORP COM 049560105 1,369 16,506 SH   SOLE   16,506 0 0
AVISTA CORP COM 05379B107 1,148 27,038 SH   SOLE   27,038 0 0
BAKER HUGHES INC COM 057224107 1,965 36,049 SH   SOLE   36,049 0 0
BLACK HILLS CORP COM 092113109 1,148 17,015 SH   SOLE   17,015 0 0
BOARDWALK PIPELINE PARTNERS UT LTD PARTNER 096627104 36,816 2,044,180 SH   SOLE   2,044,180 0 0
CABOT OIL & GAS CORP COM 127097103 3,979 158,636 SH   SOLE   158,636 0 0
CHENIERE ENERGY INC COM NEW 16411R208 32,928 675,997 SH   SOLE   675,997 0 0
CHESAPEAKE ENERGY CORP COM 165167107 538 108,219 SH   SOLE   108,219 0 0
CHEVRON CORP NEW COM 166764100 26,591 254,874 SH   SOLE   254,874 0 0
CIMAREX ENERGY CO COM 171798101 1,288 13,696 SH   SOLE   13,696 0 0
CMS ENERGY CORP COM 125896100 733 15,846 SH   SOLE   15,846 0 0
CONCHO RES INC COM 20605P101 8,379 68,947 SH   SOLE   68,947 0 0
CONOCOPHILLIPS COM 20825C104 4,810 109,420 SH   SOLE   109,420 0 0
CONTINENTAL RESOURCES INC COM 212015101 9,031 279,326 SH   SOLE   279,326 0 0
DEVON ENERGY CORP NEW COM 25179M103 1,816 56,812 SH   SOLE   56,812 0 0
DIAMONDBACK ENERGY INC COM 25278X109 19,122 215,308 SH   SOLE   215,308 0 0
ENABLE MIDSTREAM PARTNERS LP COM UNIT RP IN 292480100 15,128 949,040 SH   SOLE   949,040 0 0
ENCANA CORP COM 292505104 334 37,952 SH   SOLE   37,952 0 0
ENERGY TRANSFER EQUITY L P COM UT LTD PTN 29273V100 14,298 796,093 SH   SOLE   796,093 0 0
ENERGY TRANSFER PARTNERS LP UNIT LTD PRT INT 29278N103 29,974 1,470,026 SH   SOLE   1,470,026 0 0
ENLINK MIDSTREAM PARTNERS LP COM UNIT REP LTD 29336U107 3,381 199,349 SH   SOLE   199,349 0 0
ENTERPRISE PRODS PARTNERS L COM 293792107 34,665 1,280,093 SH   SOLE   1,280,093 0 0
EOG RES INC COM 26875P101 29,852 329,783 SH   SOLE   329,783 0 0
EQT CORP COM 26884L109 3,007 51,324 SH   SOLE   51,324 0 0
EQT MIDSTREAM PARTNERS LP UNIT LTD PARTN 26885B100 4,492 60,195 SH   SOLE   60,195 0 0
EXXON MOBIL CORP COM 30231G102 12,258 151,843 SH   SOLE   151,843 0 0
FAIRMOUNT SANTROL HLDGS INC COM 30555Q108 15,681 4,020,673 SH   SOLE   4,020,673 0 0
FORUM ENERGY TECHNOLOGIES IN COM 34984V100 15,362 984,725 SH   SOLE   984,725 0 0
GOLAR LNG LTD BERMUDA SHS G9456A100 8,373 376,295 SH   SOLE   376,295 0 0
GREAT PLAINS ENERGY INC COM 391164100 3,176 108,473 SH   SOLE   108,473 0 0
HALLIBURTON CO COM 406216101 25,742 602,725 SH   SOLE   602,725 0 0
KINDER MORGAN INC DEL COM 49456B101 37,880 1,977,030 SH   SOLE   1,977,030 0 0
LAREDO PETROLEUM INC COM 516806106 16,137 1,533,935 SH   SOLE   1,533,935 0 0
MARATHON PETE CORP COM 56585A102 3,339 63,807 SH   SOLE   63,807 0 0
MPLX LP COM UNIT REP LTD 55336V100 10,627 318,188 SH   SOLE   318,188 0 0
NEXTERA ENERGY INC COM 65339F101 1,708 12,191 SH   SOLE   12,191 0 0
NEXTERA ENERGY PARTNERS LP COM UNIT PART IN 65341B106 2,453 66,327 SH   SOLE   66,327 0 0
NGL ENERGY PARTNERS LP COM UNIT REPST 62913M107 21,045 1,503,225 SH   SOLE   1,503,225 0 0
NOBLE ENERGY INC COM 655044105 1,994 70,447 SH   SOLE   70,447 0 0
NOBLE MIDSTREAM PARTNERS LP COM UNIT REPST 65506L105 6,333 139,483 SH   SOLE   139,483 0 0
NUSTAR GP HOLDINGS LLC UNIT RESTG LLC 67059L102 959 39,234 SH   SOLE   39,234 0 0
OASIS PETE INC NEW COM 674215108 18,390 2,284,491 SH   SOLE   2,284,491 0 0
OCCIDENTAL PETE CORP DEL COM 674599105 1,861 31,087 SH   SOLE   31,087 0 0
ONEOK PARTNERS LP UNIT LTD PARTN 68268N103 8,375 163,993 SH   SOLE   163,993 0 0
PARSLEY ENERGY INC CL A 701877102 440 15,855 SH   SOLE   15,855 0 0
PATTERN ENERGY GROUP INC CL A 70338P100 2,125 89,124 SH   SOLE   89,124 0 0
PG&E CORP COM 69331C108 2,719 40,965 SH   SOLE   40,965 0 0
PIONEER NAT RES CO COM 723787107 9,255 57,996 SH   SOLE   57,996 0 0
PLAINS ALL AMERN PIPELINE L UNIT LTD PARTN 726503105 25,159 957,725 SH   SOLE   957,725 0 0
QEP RES INC COM 74733V100 315 31,202 SH   SOLE   31,202 0 0
RICE ENERGY INC COM 762760106 896 33,656 SH   SOLE   33,656 0 0
RICE MIDSTREAM PARTNERS LP UNIT LTD PARTN 762819100 4,973 249,417 SH   SOLE   249,417 0 0
ROYAL DUTCH SHELL PLC SPONS ADR A 780259206 8,786 165,180 SH   SOLE   165,180 0 0
SCHLUMBERGER LTD COM 806857108 10,129 153,848 SH   SOLE   153,848 0 0
SELECT ENERGY SVCS INC CL A COM 81617J301 4,297 353,624 SH   SOLE   353,624 0 0
SELECT SECTOR SPDR TR ENERGY 81369Y506 7,489 115,351 SH   SOLE   115,351 0 0
SEMGROUP CORP CL A 81663A105 1,496 55,411 SH   SOLE   55,411 0 0
SEMPRA ENERGY COM 816851109 3,082 27,331 SH   SOLE   27,331 0 0
SHELL MIDSTREAM PARTNERS L P UNIT LTD INT 822634101 31,017 1,023,656 SH   SOLE   1,023,656 0 0
SPDR S&P 500 ETF TR TR UNIT 78462F103 73 99,700 SH   SOLE   99,700 0 0
SPDR SERIES TRUST S&P OILGAS EXP 78464A730 2,491 78,030 SH   SOLE   78,030 0 0
STATOIL ASA SPONSORED ADR 85771P102 5,592 338,311 SH   SOLE   338,311 0 0
SUMMIT MIDSTREAM PARTNERS LP COM UNIT LTD 866142102 13,335 588,757 SH   SOLE   588,757 0 0
TARGA RES CORP COM 87612G101 25,523 564,668 SH   SOLE   564,668 0 0
TRANSCANADA CORP COM 89353D107 18,725 392,800 SH   SOLE   392,800 0 0
U S SILICA HLDGS INC COM 90346E103 11,090 312,491 SH   SOLE   312,491 0 0
USA COMPRESSION PARTNERS LP COMUNIT LTDPAR 90290N109 5,227 319,489 SH   SOLE   319,489 0 0
VALERO ENERGY PARTNERS LP COM UNT REP LP 91914J102 15,186 332,740 SH   SOLE   332,740 0 0
WEATHERFORD INTL PLC ORD SHS G48833100 18,985 4,905,673 SH   SOLE   4,905,673 0 0
WESTERN GAS EQUITY PARTNERS COMUNT LTD PT 95825R103 32,113 746,468 SH   SOLE   746,468 0 0
WESTERN GAS PARTNERS LP COM UNIT LP IN 958254104 5,327 95,228 SH   SOLE   95,228 0 0
WESTERN REFNG LOGISTICS LP COM UNIT REP LTP 95931Q205 15,487 603,786 SH   SOLE   603,786 0 0
WILLIAMS COS INC DEL COM 969457100 9,381 309,809 SH   SOLE   309,809 0 0
WILLIAMS PARTNERS L P NEW COM UNIT LTD PAR 96949L105 17,445 434,933 SH   SOLE   434,933 0 0
WPX ENERGY INC COM 98212B103 15,225 1,576,134 SH   SOLE   1,576,134 0 0