2015  2014 
    Rí000  Rí000 

16

LONG-TERM PROVISIONS

   
  Environmental obligations    
  Provision against cost of decommissioning assets 6 527  3 784 
  Balance at beginning of year 3 784  5 030 
  Provisions raised/(reversed) during the year 2 260  (573)
  Unwinding of discount 483  467 
  Reallocation to provision for environmental restoration –  (1 140)
  Provision for cost of environmental restoration 10 588  16 110 
  Balance at beginning of year 16 110  15 271 
  Provisions raised/(reversed) during the year 5 627  (1 097)
  Re-allocation from provision for decommissioning assets –  1 140 
  Transfer between long and short-term provisions (11 973) – 
  Unwinding of discount 824  796 
  Leave pay 1 318  3 488 
  Balance at beginning of year 3 488  2 389 
  Provisions raised during the year 219  – 
  Transfer between long and short-term provisions (2 389) 1 099 
       
  Balance at end of year 18 433  23 382 
       
 

The inflation rates applied to estimated costs used in the discounted cash flow to determine the provision for environmental restoration vary between 6,05% and 8,10% (2014: 6,5% and 8,5%) and the nominal discount rates vary between 6,05% and 8,10% (2014: 6% and 8,5%).