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
Aci Worldwide Inc. cs 004498101 104 4,302 SH   SOLE   4,302 0 0
Advanced Drainage Systems Inc. cs 00790R104 194 6,594 SH   SOLE   6,594 0 0
Aegion Corp. cs 00770F104 69 3,832 SH   SOLE   3,832 0 0
Altus Midstream Company cs 02215L100 61 81,827 SH   SOLE   81,827 0 0
American Express Co cs 025816109 339 3,962 SH   SOLE   3,962 0 0
American States Water Company cs 029899101 386 4,719 SH   SOLE   4,719 0 0
American Water Works Company cs 030420103 1,065 8,911 SH   SOLE   8,911 0 0
Antero Midstream Corporation cs 03676B102 1,328 632,467 SH   SOLE   632,467 0 0
Archrock, Inc. cs 03957W106 888 236,100 SH   SOLE   236,100 0 0
Atmos Energy Corp cs 049560105 11,478 115,673 SH   SOLE   115,673 0 0
Badger Meter, Inc. cs 056525108 194 3,613 SH   SOLE   3,613 0 0
Bottomline Technologies De Inc cs 101388106 60 1,630 SH   SOLE   1,630 0 0
BP Midstream Partners LP lp 0556EL109 244 26,208 SH   SOLE   26,208 0 0
California Water Service Group cs 130788102 310 6,167 SH   SOLE   6,167 0 0
Cass Information Systems Inc. cs 14808P109 17 483 SH   SOLE   483 0 0
Cheniere Energy Inc. cs 16411R208 9,975 297,747 SH   SOLE   297,747 0 0
Cheniere Energy Partners LP lp 16411Q101 621 22,996 SH   SOLE   22,996 0 0
Chesapeake Utilities Corporation cs 165303108 2,981 34,783 SH   SOLE   34,783 0 0
Cia de Saneamento Basico do Es ad 20441A102 320 43,414 SH   SOLE   43,414 0 0
CNX Midstream Partners LP lp 12654A101 182 22,476 SH   SOLE   22,476 0 0
Crestwood Equity Partners LP lp 226344208 124 29,239 SH   SOLE   29,239 0 0
CrossAmerica Partners LP lp 22758A105 46 5,687 SH   SOLE   5,687 0 0
Csg Systems International Inc cs 126349109 49 1,179 SH   SOLE   1,179 0 0
DCP Midstream LP lp 23311P100 217 53,230 SH   SOLE   53,230 0 0
Delek Logistics Partners LP lp 24664T103 35 3,819 SH   SOLE   3,819 0 0
Discover Financial Services cs 254709108 253 7,094 SH   SOLE   7,094 0 0
Docusign Inc cs 256163106 466 5,042 SH   SOLE   5,042 0 0
Enable Midstream Partners LP lp 292480100 78 30,245 SH   SOLE   30,245 0 0
Enbridge Inc cs 29250N105 20,668 710,488 SH   SOLE   710,488 0 0
Energy Transfer LP lp 29273V100 7,636 1,660,028 SH   SOLE   1,660,028 0 0
Enlink Midstream, LLC cs 29336T100 526 478,415 SH   SOLE   478,415 0 0
Enterprise Products Partners LP lp 293792107 14,975 1,047,197 SH   SOLE   1,047,197 0 0
EQM Midstream Partners, LP lp 26885B100 533 45,181 SH   SOLE   45,181 0 0
Equitrans Midstream Corporation cs 294600101 2,183 434,067 SH   SOLE   434,067 0 0
Essential Utilities Inc cs 29670G102 793 19,480 SH   SOLE   19,480 0 0
Euronet Worldwide Inc cs 298736109 167 1,953 SH   SOLE   1,953 0 0
Evertec Inc cs 30040P103 61 2,696 SH   SOLE   2,696 0 0
Evo Payments Inc cs 26927E104 23 1,522 SH   SOLE   1,522 0 0
Evoqua Water Technologies Corp cs 30057T105 100 8,940 SH   SOLE   8,940 0 0
Fidelity National Information cs 31620M106 346 2,843 SH   SOLE   2,843 0 0
Fiserv Inc cs 337738108 350 3,689 SH   SOLE   3,689 0 0
Fleetcor Technologies Inc cs 339041105 317 1,701 SH   SOLE   1,701 0 0
Franklin Electric Co Inc cs 353514102 232 4,928 SH   SOLE   4,928 0 0
Genesis Energy L.P. lp 371927104 238 60,629 SH   SOLE   60,629 0 0
Global Partners LP lp 37946R109 146 16,584 SH   SOLE   16,584 0 0
Global Payments Inc cs 37940X102 317 2,199 SH   SOLE   2,199 0 0
Green Dot Corp cs 39304D102 46 1,821 SH   SOLE   1,821 0 0
Greensky Inc cs 39572G100 7 1,962 SH   SOLE   1,962 0 0
Hess Midstream LP lp 428103105 62 6,074 SH   SOLE   6,074 0 0
Holly Energy Partners, L.P. lp 435763107 348 24,818 SH   SOLE   24,818 0 0
Jack Henry & Associates Inc cs 426281101 364 2,347 SH   SOLE   2,347 0 0
Kinder Morgan Inc cs 49456B101 19,846 1,425,734 SH   SOLE   1,425,734 0 0
Lendingclub Corp cs 52603A208 25 3,172 SH   SOLE   3,172 0 0
Magellan Midstream Partners, LP lp 559080106 9,547 261,634 SH   SOLE   261,634 0 0
MasterCard Incorporated cs 57636Q104 339 1,402 SH   SOLE   1,402 0 0
Middlesex Water Co cs 596680108 134 2,231 SH   SOLE   2,231 0 0
MPLX LP lp 55336V100 2,451 210,896 SH   SOLE   210,896 0 0
Mueller Water Products, Inc. cs 624758108 156 19,520 SH   SOLE   19,520 0 0
National Fuel Gas Co cs 636180101 6,856 183,845 SH   SOLE   183,845 0 0
Ncr Corp cs 62886E108 86 4,835 SH   SOLE   4,835 0 0
New Fortress Energy LLC cs 644393100 276 28,193 SH   SOLE   28,193 0 0
New Jersey Resources Corporation cs 646025106 6,908 203,366 SH   SOLE   203,366 0 0
Nisource Inc cs 65473P105 10,986 439,972 SH   SOLE   439,972 0 0
Noble Midstream Partners LP lp 65506L105 69 19,854 SH   SOLE   19,854 0 0
Northwest Natural Holding Co. cs 66765N105 3,989 64,592 SH   SOLE   64,592 0 0
NuStar Energy L.P. lp 67058H102 463 53,920 SH   SOLE   53,920 0 0
Oasis Midstream Partners LP lp 67420T206 26 5,185 SH   SOLE   5,185 0 0
ONE Gas, Inc. cs 68235P108 9,378 112,152 SH   SOLE   112,152 0 0
ONEOK, Inc cs 682680103 8,282 379,734 SH   SOLE   379,734 0 0
Onespan Inc cs 68287N100 22 1,197 SH   SOLE   1,197 0 0
Pagseguro Digital Ltd cs G68707101 132 6,836 SH   SOLE   6,836 0 0
Paypal Holdings Inc cs 70450Y103 348 3,637 SH   SOLE   3,637 0 0
PBF Logistics LP lp 69318Q104 113 16,711 SH   SOLE   16,711 0 0
Pembina Pipeline Corp cs 706327103 9,314 496,494 SH   SOLE   496,494 0 0
PENTAIR INC cs G7S00T104 504 16,930 SH   SOLE   16,930 0 0
Phillips 66 Partners LP lp 718549207 1,138 31,241 SH   SOLE   31,241 0 0
Plains All American Pipeline, L.P. lp 726503105 1,275 241,540 SH   SOLE   241,540 0 0
Plains GP Holdings, L.P. cs 72651A207 560 99,763 SH   SOLE   99,763 0 0
Q2 Holdings Inc cs 74736L109 98 1,654 SH   SOLE   1,654 0 0
Qiwi Plc ad 74735M108 19 1,799 SH   SOLE   1,799 0 0
Rattler Midstream Partners LP lp 75419T103 72 20,802 SH   SOLE   20,802 0 0
Rexnord Corp cs 76169B102 353 15,574 SH   SOLE   15,574 0 0
Shell Midstream Partners LP lp 822634101 704 70,540 SH   SOLE   70,540 0 0
Sjw Corp cs 784305104 186 3,212 SH   SOLE   3,212 0 0
South Jersey Industries, Inc. cs 838518108 4,916 196,627 SH   SOLE   196,627 0 0
Southwest Gas Corporation cs 844895102 8,073 116,062 SH   SOLE   116,062 0 0
Spire Inc cs 84857L101 8,062 108,250 SH   SOLE   108,250 0 0
Sprague Resources, LP lp 849343108 59 4,543 SH   SOLE   4,543 0 0
Square Inc cs 852234103 317 6,050 SH   SOLE   6,050 0 0
Stoneco Ltd cs G85158106 116 5,320 SH   SOLE   5,320 0 0
Sunoco LP lp 86765K109 462 29,550 SH   SOLE   29,550 0 0
Tallgrass Energy LP cs 874696107 1,364 82,882 SH   SOLE   82,882 0 0
Targa Resources Corp. cs 87612G101 3,426 495,816 SH   SOLE   495,816 0 0
TC Energy Corp. cs 87807B107 21,312 481,081 SH   SOLE   481,081 0 0
TC PipeLines, LP lp 87233Q108 819 29,793 SH   SOLE   29,793 0 0
The York Water Co cs 987184108 69 1,597 SH   SOLE   1,597 0 0
USA Compression Partners LP lp 90290N109 166 29,265 SH   SOLE   29,265 0 0
USD Partners LP lp 903318103 15 5,267 SH   SOLE   5,267 0 0
VISA Inc cs 92826C839 352 2,185 SH   SOLE   2,185 0 0
Watts Water Technologies, Inc. cs 942749102 290 3,421 SH   SOLE   3,421 0 0
Western Midstream Partners LP lp 958669103 355 109,576 SH   SOLE   109,576 0 0
Western Union Co/The cs 959802109 282 15,548 SH   SOLE   15,548 0 0
Wex Inc cs 96208T104 171 1,636 SH   SOLE   1,636 0 0
Williams Companies, Inc cs 969457100 15,733 1,111,847 SH   SOLE   1,111,847 0 0
Xylem Inc. cs 98419M100 1,028 15,778 SH   SOLE   15,778 0 0
Yiren Digital Ltd. ad 98585L100 14 3,406 SH   SOLE   3,406 0 0
Zuora Inc cs 98983V106 25 3,127 SH   SOLE   3,127 0 0