Canada's primary underground propane inventories increased by 23.88% in September, according to the Canada Energy Regulator (CER). The total represented a month-to-month increase of 337.3 Mcm. Compared to a year earlier, stocks were lower, with 224.3 Mcm, or 11.36%, less product on hand. 

Propane storages in the West started September a bit higher at 1161.3 Mcm, which corresponds to 7.316 MMbbl, the agency reported. From August to September, volumes increased by 150.7 Mcm, or 14.91%, and were 132.7 more than the year prior's level of 1028.6 Mcm. Propane storages in the East started September higher at 588.4, commensurate with 3.707 MMbbl. This gain put propane 186.6 Mcm, or 46.44%, higher for the month, with a decrease of 356.9, or 37.76%, below a year earlier. 

Canadian butane inventories stood at 1301.8 Mcm at the beginning of September, for an increase of 110 Mcm, or 9.23%, from August. Like propane, the year-over-year comparison finds butane volumes to be higher than the prior year's total, with inventories 249.8 Mcm, or 23.75%, above 2020. Western butane supplies, at 712.3 Mcm, were higher by 17.1 Mcm, or 2.46%, from the previous months and were 108.1 Mcm, or 17.89%, more than last year. Eastern butane, at 589.6 Mcm, was 93 Mcm, or 18.73%, higher month over month, and totaled 141.8Mcm, or 31.67%, above a year earlier. 

Canadian inventories data September 2022

Source: Canada Energy Regulator