{"id": 1295391, "name": "Coal reserves-to-production ratio", "unit": "years", "createdAt": "2026-08-07T07:50:32.000Z", "updatedAt": "2026-08-07T07:50:32.000Z", "coverage": "", "timespan": "2020-2020", "datasetId": 8094, "shortUnit": "years", "columnOrder": 0, "shortName": "coal_reserves_to_production_ratio", "catalogPath": "grapher/energy/2026-06-30/fossil_fuels/fossil_fuels#coal_reserves_to_production_ratio", "descriptionShort": "Number of years that proved reserves of coal would last if production continued at its current rate.", "descriptionProcessing": "- The reserves-to-production ratio is calculated by Our World in Data as the Energy Institute Statistical Review of World Energy's proved reserves divided by its production of the same fossil fuel in the same year.", "type": "float", "datasetName": "Fossil fuels", "updatePeriodDays": 365, "datasetVersion": "2026-06-30", "nonRedistributable": false, "display": {"name": "Coal", "unit": "years", "shortUnit": "years"}, "schemaVersion": 2, "processingLevel": "major", "presentation": {"titlePublic": "Coal reserves-to-production ratio", "topicTagsLinks": ["Energy", "Fossil Fuels"]}, "dimensions": {"years": {"values": [{"id": 2020}]}, "entities": {"values": [{"id": 355, "name": "World", "code": "OWID_WRL"}]}}, "origins": [{"id": 20498, "titleSnapshot": "Statistical Review of World Energy - All data", "title": "Statistical Review of World Energy", "description": "The Energy Institute Statistical Review of World Energy analyses data on world energy markets from the prior year.", "producer": "Energy Institute", "citationFull": "Energy Institute - Statistical Review of World Energy (2026).", "attribution": "Energy Institute - Statistical Review of World Energy (2026)", "attributionShort": "Energy Institute", "urlMain": "https://www.energyinst.org/statistical-review/", "dateAccessed": "2026-07-02", "datePublished": "2026-06-30", "license": {"url": "https://www.energyinst.org/terms", "name": "\u00a9 Energy Institute 2026"}}, {"id": 20497, "titleSnapshot": "Statistical Review of World Energy - Consolidated dataset narrow format", "title": "Statistical Review of World Energy", "description": "The Energy Institute Statistical Review of World Energy analyses data on world energy markets from the prior year.", "producer": "Energy Institute", "citationFull": "Energy Institute - Statistical Review of World Energy (2026).", "attribution": "Energy Institute - Statistical Review of World Energy (2026)", "attributionShort": "Energy Institute", "urlMain": "https://www.energyinst.org/statistical-review/", "dateAccessed": "2026-07-02", "datePublished": "2026-06-30", "license": {"url": "https://www.energyinst.org/terms", "name": "\u00a9 Energy Institute 2026"}}]}