response from VP Finance(Lawrence Broos) on WCS impact to CJBelow is a reply from their VP Finance on Jan 12 2018: Q: I heard somewhere that CJ in 2018 will be 50/50 in light oil/medium oil. Light oil is sold at WTI price, so the negativity of CJ SP dragged down or stale by WCS is wrongfooted. Medium oil is sold a few dollars above WCS which is still below WTI price, so the negativity of CP SP dragged down by WCS is valid but exaggerated. A: Your point is correct. Q: Does CJ hedge its medium oil a price ? Is the price hinged to WCS price: A: We do hedge the differential between WTI and WCS. For Dec, we had ~ 9000 bbl/d hedged at a differential of $19 CAD and currently have ~ 5000 bbl/d hedged at about the same. So the impact to cash flow from recent widening of the WTI-WCS differential has been greatly mitigated at Cardinal.