Propane Inventories Post Weekly Build Following on the heels of the first seasonal draw, propane inventories reversed course and posted a modest 0.6-million barrel build last week, moving inventories higher to an estimated 61.0 million barrels as of October 19, 2007. Nevertheless, inventories remain below the lower boundary of the average range for this time of year. Most of last week’s build occurred in the Midwest were inventories climbed by 0.5 million barrels, followed by a 0.1 million barrel gain in the combined Rocky Mountain/West Coast region. Inventories in both the East Coast and Gulf Coast regions remained relatively unchanged last week. Propylene non-fuel use inventories also remained relatively flat last week, although its’ share to total propane/propylene inventories fell slightly to 3.1 percent compared with the prior week’s 3.2 percent share.