Barnwell Industries, Inc. is engaged in various lines of business, such as acquiring, developing, producing and selling oil and natural gas in Canada; investing in land interests in Hawaii; drilling wells, and installing and repairing water pumping systems in Hawaii, and developing homes for sale in Hawaii. The Company's segments include Oil and Natural Gas Segment; Land Investment Segment; Contract Drilling Segment, and Residential Real Estate Segment. The Company's investments in oil and natural gas properties are located in Canada, principally in the province of Alberta, with other non-producing holdings in the provinces of Saskatchewan and British Columbia. It holds interests in Kaupulehu Developments, a Hawaii general partnership. Its subsidiary, Water Resources International, Inc., drills water and water monitoring wells of varying depths in Hawaii, installs and repairs water-pumping systems, and is the distributor for Floway pumps and equipment in the state of Hawaii.