Slovakia - Crude Oil Reserves (Million barrels)
| 2021 | 9.0 |
| 2020 | 9.0 |
| 2019 | 9.0 |
| 2018 | 9.0 |
| 2017 | 9.0 |
| 2016 | 9.0 |
| 2015 | 9.0 |
| 2014 | 9.0 |
| 2013 | 9.0 |
| 2012 | 9.0 |
| 2011 | 9.0 |
| 2010 | 9.0 |
| 2009 | 9.0 |
| 2008 | 9.0 |
| 2007 | 9.0 |
| 2006 | 9.0 |
| 2005 | 9.0 |
| 2004 | 9.0 |
| 2003 | 9.0 |
| 2002 | 9.0 |
| 2001 | 9.0 |
| 2000 | 9.0 |
| 1999 | 9.0 |
| 1998 | 9.0 |
| 1997 | 9.0 |
| 1996 | 9.0 |
