The Soaring Oil prices although justifies the fluctuation in the pricing of bitumen, there is not an established mechanism to derive the bitumen price till date. The bitumen market is getting mature and liquid. The majority of the exporting nations include Singapore, Iran, Saudi Arabia, Egypt, Thailand in this region has different inputs and the range varies significantly.
Recently the Cartel led by Shell was exposed by the European regulators and the was fined to the tune of price fixing on various petroleum products.
For Bitumen, there are no posted prices except for some compiled prices from some paid subscription services ; marketers rely on a number of pricing formulas that reference various posted crude qualities.
Market pricing is seasonal with higher prices during peak season like summer being the norm due to higher demand for bitumen and other bitumen derived products.
By necessity, bitumen is regularly blended with diluent (typically in the form of C5+or synthetic light crude) in order to facilitate its transportation via pipeline to tankers.