The Netherlands has been a major producer and exporter of natural gas since the 1960s, when the massive Groningen field was developed. Though its share has been decreasing for several years to the advantage of renewable energy, natural gas still covered 43% of the total energy supply in 2021. These resources are nearing exhaustion that in 2021, production levels were less than one-third of outputs recorded in 1990. In 2018, natural gas imports exceeded domestic production for the first time, with the share of imports further increasing each year until 2020. It has been decided that the Groningen field will close by mid-2022. In June 2019, the Dutch government approved the Climate Agreement which targets a 49% reduction in GHG emissions to below 48.7 MtCO2 by 2030 with indicative goals for set for the electricity, industrial, transport, agricultural and built environment sectors. Consistent with this, a new law was passed in December 2019 that calls for the phase out of coal in electricity production by 2030. The law stipulates that the remaining four coal power plants in the country must discontinue coal use by the end of 2029 at the latest.