Common factor is that both are Energy sector commodities. One more common factor is, in MCX, price of both will be impacted similarly with INR appreciation/ depreciation.
Apart from these two similarities, I don’t think there is anything common between them. Based on news or fundamentals, sometimes both commodities may head in the same direction. Likewise, both may head in opposite directions based on some other news. Generalising the inter relation between prices of these two commodities will do more of a negative impact on trading than doing a positive impact.
Both the commodities are very sensitive to those news, which indicate modest to high change in demand and supply.