EX-21 3 exhibitno2193021.htm EX-21
Exhibit No. 21
List of Subsidiaries
The subsidiaries of Barnwell Industries, Inc., at September 30, 2021 were:

| Jurisdiction of
Name of Subsidiary | Incorporation or Organization
Barnwell of Canada, Limited | Delaware
Water Resources International, Inc. | Delaware
Barnwell Hawaiian Properties, Inc. | Delaware
Barnwell Kona Corporation | Hawaii
Kaupulehu Developments | Hawaii
Barnwell Alakea Properties, Inc. | Hawaii
Kaupulehu Mauka Investors, LLC | Hawaii
Barnwell Makai, Inc. | Hawaii
KD Kona 2013 LLLP | Hawaii
BOK Drilling, LLC | Hawaii
Bill Robbins Drilling, Ltd. | Alberta, Canada
Gypsy Petroleum Ltd. | Alberta, Canada
Dartmouth Petroleum, Ltd. | Alberta, Canada
J.H. Wilson Associates, Ltd. | Alberta, Canada
Octavian Oil, Ltd. | Alberta, Canada