Barrel (unit) continued to use the same size barrels. In the worldwide oil industry, an oil barrel is defined as 42 US gallons, which is about litres or 35 imperial gallons. Oil companies that are listed on American stock exchanges typically report their production in terms of volume and use the units of bbl, Mbbl (one thousand barrels), or MMbbl (one million barrels) and occasionally for widest comprehensive statistics the Gbbl (or sometimes Gbl) denoting a billion. There is a conflict concerning the units for oil barrels (see ). For all other physical quantities, according to the International System of Units, the
Imperial Oil On the Run for convenience stores, and the Speedpass electronic payment system. Until 2018, Imperial Oil was a member of the rewards program Aeroplan. On March 13, 2018, Loblaw Companies announced that it had reached a deal for the Esso-branded stations to join the PC Optimum rewards program, beginning on June 1, 2018. Loblaw Companies had previously sold its network of 213 gas stations (all of which are attached to its various grocery store locations) to Brookfield Business Partners in 2017; Brookfield entered into an agreement with Imperial Oil to utilize the Mobil brand for these stations. As part of