shares of canadian natural resources ltd cnq dropped 075 to c5307 tuesday in what proved to be an allaround poor trading session for the canadian market with the sptsx composite index gsptse falling 036 to 2117001 canadian natural resources ltd closed c095 short of its 52week high c5402 which the company reached on october 25th trading volume of 27 m shares remained below its 50day average volume of 67 m