Barnwell Industries is engaged in the business of: acquiring, developing, producing and selling oil and natural gas in Canada including evaluating proposals by third parties with regard to participation in exploratory and developmental operations elsewhere; investing in land interests in Hawaii; and drilling water and water monitoring wells of varying depths in Hawaii, installing and repairing water pumping systems through its wholly-owned subsidiary, Water Resources International, Inc., which is the distributor for Floway pumps and equipment in the state of Hawaii.

OncoCyte is focused on developing non-invasive molecular diagnostic tests for cancer diagnosis. The company is developing DetermaVu?, a non-invasive molecular lung cancer confirmatory diagnostic that can be administered to patients as a blood test. DetermaVu? utilizes proprietary sets of gene expression markers to help confirm whether lung nodules detected via Low Dose Computed Tomography scans, x-rays or other imaging are likely to be benign or malignant. DetermaVu? is based on the company's Immune System Interrogation approach that checks the body's immune system response to a specific disease by measuring differential RNA expression in patients with the disease versus patients without the disease.