*Toronto Stock Exchange's S&P/TSX composite index was down 3.64 points, or 0.02%, at 19,307.1.
* The materials sector, which includes precious and base metals miners and fertilizer companies, added 1.0% as gold futures rose 0.5% to $1,792.7 an ounce.
Crude inventories fell by 8 million barrels in the week to April 30 to 485.1 million barrels, compared with analysts' expectations in a Reuters poll for a 2.3 million-barrel drop.
Refinery crude runs rose by 225,000 barrels per day in the last week, EIA said.
Crude inventories fell by 3.5 million barrels in the week to April 2 to 501.8 million barrels, compared with analysts' expectations in a Reuters poll for a 1.4 million-barrel drop.
Crude stocks at the Cushing, Oklahoma, delivery hub fell by 735,000 barrels in the last week, EIA said.