Rey Resources holds extensive leases in the Canning Basin, Western Australia. These are known to host vast deposits of coal. The coal deposits are the core assets of the company and the focus of management's activities. The strategy is to develop an export thermal coal mining business as well as investigate the potential to develop underground coal gasification (UCG) and coal bed methane extraction.

Rey Resources also hold a 10% interest in petroleum exploration licences EP 457 and EP 458 which overlap the coal leases and are being farmed out to the firm's largest shareholder Gujarat NRE.