Tank ONO`s Operating Cost Growth reached -100 % in 2015. This is 911 % less than in the previous year.
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| Company | Unit | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 |
| Linde Gas Czech Republic | % | ... | ... | ... | ... | ... | -2.18 | -7.50 | -1.76 | 5.70 | -6.27 | ||
| MOL Czech Republic | % | ... | ... | ... | ... | -35.8 | -85.5 | 609 | 6.43 | -1.45 | |||
| OMV Czech Republic | % | ... | ... | ... | ... | 40.6 | -11.2 | -70.8 | 303 | 3.06 | |||
| RoBiN OIL | % | ... | ... | ... | ... | -48.6 | -169 | -216 | 26.0 | -1.05 | |||
| Shell Czech Republic | % | ... | ... | ... | ... | 209 | 7.14 | -18.7 | -21.2 | -17.7 | |||
| Tank ONO | % | ... | ... | 25.3 | 33.2 | -2.26 | 10.6 | 1.17 | |||||
| Unipetrol | % | -16.6 | 5.34 | -7.85 | 11.9 | -92.6 |
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