text: **Annex 4: Default values**
  
  **1.**
  
  **Fraction of carbon stored for reference approach**
  Bitumen – 1 
  Coal oils and tars (from coking coal – 0.75 
  Ethane – 0.8 
  Gas/Diesel oil – 0.5 
  LPG – 0.8 
  Lubricants – 0.5 
  Naphtha – 0.8 
  Natural gas – 0.33 