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
A O SMITH cs 831865209 1,260 18,629 SH   SOLE   18,629 0 0
Altus Midstream Company cs 02215L209 262 4,998 SH   SOLE   4,998 0 0
American Express Co cs 025816109 585 4,133 SH   SOLE   4,133 0 0
American States Water Company cs 029899101 382 5,055 SH   SOLE   5,055 0 0
American Water Works Company cs 030420103 2,844 18,969 SH   SOLE   18,969 0 0
Antero Midstream Corporation cs 03676B102 5,068 561,243 SH   SOLE   561,243 0 0
Archrock, Inc. cs 03957W106 2,389 251,731 SH   SOLE   251,731 0 0
Atmos Energy Corp cs 049560105 18,724 189,423 SH   SOLE   189,423 0 0
Badger Meter, Inc. cs 056525108 371 3,991 SH   SOLE   3,991 0 0
BP Midstream Partners LP lp 0556EL109 431 34,017 SH   SOLE   34,017 0 0
California Water Service Group cs 130788102 385 6,830 SH   SOLE   6,830 0 0
Cheniere Energy Inc. cs 16411R208 16,740 232,462 SH   SOLE   232,462 0 0
Cheniere Energy Partners LP lp 16411Q101 1,943 46,766 SH   SOLE   46,766 0 0
Chesapeake Utilities Corporation cs 165303108 3,978 34,269 SH   SOLE   34,269 0 0
Cia de Saneamento Basico do Estado ad 20441A102 343 46,830 SH   SOLE   46,830 0 0
Crestwood Equity Partners LP lp 226344208 1,153 41,283 SH   SOLE   41,283 0 0
CrossAmerica Partners LP lp 22758A105 268 14,438 SH   SOLE   14,438 0 0
DCP Midstream LP lp 23311P100 1,599 73,815 SH   SOLE   73,815 0 0
Delek Logistics Partners LP lp 24664T103 237 6,586 SH   SOLE   6,586 0 0
Discover Financial Services cs 254709108 578 6,089 SH   SOLE   6,089 0 0
Docusign Inc cs 256163106 577 2,851 SH   SOLE   2,851 0 0
Ecolab Inc. cs 278865100 2,552 11,922 SH   SOLE   11,922 0 0
Enable Midstream Partners LP lp 292480100 447 68,958 SH   SOLE   68,958 0 0
Enbridge Inc cs 29250N105 32,697 898,258 SH   SOLE   898,258 0 0
Energy Transfer LP lp 29273V100 15,365 2,000,597 SH   SOLE   2,000,597 0 0
Enlink Midstream, LLC cs 29336T100 2,185 509,425 SH   SOLE   509,425 0 0
Enterprise Products Partners LP lp 293792107 27,135 1,232,284 SH   SOLE   1,232,284 0 0
Equitrans Midstream Corporation cs 294600101 6,528 800,044 SH   SOLE   800,044 0 0
Essential Utilities Inc cs 29670G102 1,374 30,702 SH   SOLE   30,702 0 0
Euronet Worldwide Inc cs 298736109 262 1,891 SH   SOLE   1,891 0 0
Evoqua Water Technologies Corp cs 30057T105 426 16,207 SH   SOLE   16,207 0 0
Fidelity National Information cs 31620M106 586 4,166 SH   SOLE   4,166 0 0
Fiserv Inc cs 337738108 583 4,896 SH   SOLE   4,896 0 0
Fleetcor Technologies Inc cs 339041105 571 2,125 SH   SOLE   2,125 0 0
Franklin Electric Co Inc cs 353514102 415 5,255 SH   SOLE   5,255 0 0
Genesis Energy L.P. lp 371927104 840 89,911 SH   SOLE   89,911 0 0
Global Partners LP lp 37946R109 461 21,565 SH   SOLE   21,565 0 0
Global Payments Inc cs 37940X102 583 2,894 SH   SOLE   2,894 0 0
Hess Midstream LP cs 428103105 294 13,126 SH   SOLE   13,126 0 0
Holly Energy Partners, L.P. lp 435763107 705 36,869 SH   SOLE   36,869 0 0
IDEX Corporation cs 45167R104 1,720 8,216 SH   SOLE   8,216 0 0
Jack Henry & Associates Inc cs 426281101 438 2,886 SH   SOLE   2,886 0 0
Kinder Morgan Inc cs 49456B101 33,064 1,985,808 SH   SOLE   1,985,808 0 0
Lindsay Corporation cs 535555106 248 1,490 SH   SOLE   1,490 0 0
Magellan Midstream Partners, L.P. lp 559080106 7,797 179,810 SH   SOLE   179,810 0 0
MasterCard Incorporated cs 57636Q104 566 1,589 SH   SOLE   1,589 0 0
MPLX LP lp 55336V100 7,277 283,931 SH   SOLE   283,931 0 0
Mueller Water Products, Inc. cs 624758108 301 21,664 SH   SOLE   21,664 0 0
National Fuel Gas Co cs 636180101 8,939 178,809 SH   SOLE   178,809 0 0
New Fortress Energy Inc. cs 644393100 1,572 34,249 SH   SOLE   34,249 0 0
New Jersey Resources Corporation cs 646025106 7,525 188,736 SH   SOLE   188,736 0 0
Nisource Inc cs 65473P105 18,572 770,297 SH   SOLE   770,297 0 0
Noble Midstream Partners LP lp 65506L105 384 26,505 SH   SOLE   26,505 0 0
Northwest Natural Holding Co. cs 66765N105 3,239 60,036 SH   SOLE   60,036 0 0
NuStar Energy L.P. lp 67058H102 1,352 79,129 SH   SOLE   79,129 0 0
ONE Gas, Inc. cs 68235P108 8,032 104,433 SH   SOLE   104,433 0 0
ONEOK, Inc cs 682680103 24,440 482,430 SH   SOLE   482,430 0 0
Pagseguro Digital Ltd cs G68707101 326 7,039 SH   SOLE   7,039 0 0
Paypal Holdings Inc cs 70450Y103 609 2,506 SH   SOLE   2,506 0 0
PBF Logistics LP lp 69318Q104 290 19,729 SH   SOLE   19,729 0 0
Pembina Pipeline Corp cs 706327103 16,734 579,317 SH   SOLE   579,317 0 0
PENTAIR INC cs G7S00T104 1,426 22,882 SH   SOLE   22,882 0 0
Phillips 66 Partners LP lp 718549207 1,514 47,805 SH   SOLE   47,805 0 0
Plains All American Pipeline lp 726503105 3,333 366,267 SH   SOLE   366,267 0 0
Plains GP Holdings, L.P. cs 72651A207 1,469 156,281 SH   SOLE   156,281 0 0
Primo Water Corp cs 74167P108 359 22,027 SH   SOLE   22,027 0 0
Q2 Holdings Inc cs 74736L109 205 2,045 SH   SOLE   2,045 0 0
Rattler Midstream Partners LP lp 75419T103 356 33,508 SH   SOLE   33,508 0 0
Rexnord Corp cs 76169B102 776 16,482 SH   SOLE   16,482 0 0
Shell Midstream Partners LP lp 822634101 1,310 98,166 SH   SOLE   98,166 0 0
Sjw Corp cs 784305104 227 3,601 SH   SOLE   3,601 0 0
South Jersey Industries, Inc. cs 838518108 4,456 197,350 SH   SOLE   197,350 0 0
Southwest Gas Corporation cs 844895102 7,712 112,246 SH   SOLE   112,246 0 0
Spire Inc cs 84857L101 7,488 101,338 SH   SOLE   101,338 0 0
Square Inc cs 852234103 607 2,675 SH   SOLE   2,675 0 0
Stoneco Ltd cs G85158106 404 6,607 SH   SOLE   6,607 0 0
Sunoco LP lp 86765K109 1,389 43,622 SH   SOLE   43,622 0 0
Targa Resources Corp. cs 87612G101 14,241 448,551 SH   SOLE   448,551 0 0
TC Energy Corp. cs 87807B107 32,062 700,811 SH   SOLE   700,811 0 0
Tetra Tech, Inc. cs 88162G103 1,004 7,397 SH   SOLE   7,397 0 0
USA Compression Partners LP lp 90290N109 616 40,235 SH   SOLE   40,235 0 0
VISA Inc cs 92826C839 575 2,717 SH   SOLE   2,717 0 0
Watts Water Technologies, Inc. cs 942749102 447 3,760 SH   SOLE   3,760 0 0
Western Midstream Partners LP lp 958669103 2,782 149,659 SH   SOLE   149,659 0 0
Western Union Co/The cs 959802109 387 15,709 SH   SOLE   15,709 0 0
Wex Inc cs 96208T104 353 1,685 SH   SOLE   1,685 0 0
Williams Companies, Inc cs 969457100 31,175 1,315,940 SH   SOLE   1,315,940 0 0
Xylem Inc. cs 98419M100 2,057 19,561 SH   SOLE   19,561 0 0