{"entity":{"iso2":"ES","iso3":"ESP","name":"Spain","slug":"spain"},"indicator":{"licence":"CC BY 4.0 (Our World in Data)","slug":"oil-proved-reserves","source":"U.S. Energy Information Administration (2022) \u2013 with major processing by Our World in Data","source_url":"https://ourworldindata.org/grapher/oil-proved-reserves","title":"Oil reserves","unit":"cubic meters"},"observations":[{"date":"1980-01-01","value":23848100.0},{"date":"1981-01-01","value":55645600.0},{"date":"1982-01-01","value":19348800.0},{"date":"1983-01-01","value":20890900.0},{"date":"1984-01-01","value":25438000.0},{"date":"1985-01-01","value":18283500.0},{"date":"1986-01-01","value":14308900.0},{"date":"1987-01-01","value":4483440.0},{"date":"1988-01-01","value":6136910.0},{"date":"1989-01-01","value":4126520.0},{"date":"1990-01-01","value":3974680.0},{"date":"1991-01-01","value":3179750.0},{"date":"1992-01-01","value":3400580.0},{"date":"1993-01-01","value":3580080.0},{"date":"1994-01-01","value":3580080.0},{"date":"1995-01-01","value":3218220.0},{"date":"1996-01-01","value":3179750.0},{"date":"1997-01-01","value":4769620.0},{"date":"1998-01-01","value":4769620.0},{"date":"1999-01-01","value":2225660.0},{"date":"2000-01-01","value":2225660.0},{"date":"2001-01-01","value":3340160.0},{"date":"2002-01-01","value":3340160.0},{"date":"2003-01-01","value":25060500.0},{"date":"2004-01-01","value":25060500.0},{"date":"2005-01-01","value":25060500.0},{"date":"2006-01-01","value":25060500.0},{"date":"2007-01-01","value":23848100.0},{"date":"2008-01-01","value":23848100.0},{"date":"2009-01-01","value":23848100.0},{"date":"2010-01-01","value":23848100.0},{"date":"2011-01-01","value":23848100.0},{"date":"2012-01-01","value":23848100.0},{"date":"2013-01-01","value":23848100.0},{"date":"2014-01-01","value":23848100.0},{"date":"2015-01-01","value":23848100.0},{"date":"2016-01-01","value":23848100.0},{"date":"2017-01-01","value":23848100.0},{"date":"2018-01-01","value":23848100.0},{"date":"2019-01-01","value":23848100.0},{"date":"2020-01-01","value":23848100.0},{"date":"2021-01-01","value":23848100.0}],"summary":{"latest_period":"2021-01-01","latest_value":23848100.0,"max":55645600.0,"mean":16553800.0,"min":2225660.0,"of":215,"rank":60,"trend":"volatile"}}