Stockton mine


Located in the Buller Coalfield on the West Coast, Stockton is the largest opencast mine in New Zealand.

The mine delivers high-quality steelmaking coal for export.

Stockton coal is bituminous and ash levels are typically low by world standards. It’s highly sought after by steel makers because of its low ash and low phosphorus content. And it swells strongly on heating making – an essential attribute for the production of quality coke.


Miners beside truck

Stockton location on map

Mine information

  • Ownership
    65% BRL 35% Talleys Energy
  • Location
    35 km north of Westport
  • License/Permit
    CML 37150, CMP 52937 and CMP 41515
  • Coal types
    Bitiminous, coking coal, thermal
  • Life of mine
    10+ years
  • Coal Reserves
    7.4 Mt
  • Coal Resources
    64.9 Mt
  • Last FY production
    954 kt