Barrels of oil equivalent to megajoules converter on this page calculates how many megajoules are in 'X' barrels of oil equivalent (where 'X' is the number of barrels of oil equivalent to convert to megajoules). In order to convert a value from barrels of oil equivalent to megajoules (from BOE to MJ) simply type the number of BOE to be converted to MJ and then click on the 'convert' button.