Oceanic Coal Australia Limited (OCAL) operates the underground coal operation West Wallsend Colliery and the Macquarie Coal Preparation Plant (MCPP) on behalf of Macquarie Coal Joint Venture. OCAL is the major shareholder in the Macquarie Coal Joint Venture with 70% ownership. Other shareholders included are Marubeni Coal Pty Ltd (17%), OCAL Macquarie Pty Ltd (10%) and JFE Minerals (Australia) Pty Ltd (3%). OCAL, which also owns OCAL Macquarie Pty Ltd, which is wholly owned by Glencore Xstrata.
The West Wallsend Colliery is operated in conjunction with the Macquarie Coal Preparation Plant, located near the mine operation, which handles and processes run of mine (ROM) coal received from the West Wallsend Colliery.