CANADA STOCKS-Energy weighs on TSX, Potash limits fall
* TSX slips 0.14 percent to 11,711.86
* Potash Corp. up 3 pct, BHP to take offer to shareholders
* Energy decline is main drag as oil prices weaken (Adds details)
By Ka Yan Ng
TORONTO, Aug 18 (Reuters) - Toronto's main stock index was lower on Wednesday morning on a steep drop in energy shares but the fall was limited by strength in $39-billion takeover target Potash Corp.
The Toronto Stock Exchange's S&P/TSX composite index .GSPTSE was down 16.78 points, or 0.14 percent, at 11,711.86, after briefly popping into positive territory.
Seven of the index's 10 main groups were lower, with a 0.96 percent drop in the energy group, due to a falling oil price, providing the main drag on the index.
Oil prices fell to a one-month low below $75 after an industry report on Tuesday showed a sharp increase in petroleum inventories in the United States. [O/R]