Most actively traded companies on the TSX, TSX Venture Exchange markets

TORONTO - Some of the most active companies traded Tuesday on the Toronto Stock Exchange and the TSX Venture Exchange:

Toronto Stock Exchange (12,745.38 down 13 points):

TORC Oil and Gas Ltd. (TSX:TOG). Oil and gas. Up five cents, or 3.42 per cent, at $1.51 on 7.76 million shares.

Bombardier Inc. (TSX:BBD.B). Transportation equipment. Unchanged at $5.07 on 6.55 million shares.

Osisko Mining Corp. (TSX:OSK). Miner. Up two cents, or 0.45 per cent, at $4.42 on 6.03 million shares.

San Gold Corp. (TSX:SGR). Miner. Up 2.5 cents, or 15.15 per cent, at 19 cents on 5.25 million shares.

Denison Mines Corp. (TSX:DML). Miner. Down three cents, or 2.19 per cent, at $1.34 on 4.97 million shares.

Toronto Venture Exchange (930.48 up 1.10 points):

Rodinia Oil Corp. (TSXV:ROZ). Oil. Down half a cent, or 25 per cent, at 1.5 cents on 3.90 million shares.

Africa Hydrocarbons Inc. (TSXV:NFK). Oil and gas explorer. Up 1.5 cents, or 23.08 per cent, at eight cents on 3.76 million shares.

Company reporting major news:

AlarmForce Industries Inc. (TSX:AF). Home security. Up 20 cents, or 2.04 per cent, at $10 on 14,870 shares. The home alarm company fired its chief executive Joel Matlin after a year-long strategic review of the company. AlarmForce named chief financial officer Anthony Pizzonia as interim president and chief executive and started a search for Matlin's replacement.

HudBay Minerals Inc. (TSX:HBM). Miner. Up 33 cents, or 4.47 per cent, at $7.71 on 426,225 shares. An Ontario court has ruled that three lawsuits against HudBay around alleged shootings and gang rapes at a mining project Guatemala can proceed to trial in Canada. The suits allege that security personnel, along with members of the police and military, attacked and raped 11 women in 2007 who were forcibly removed from their village in relation to the Fenix project.

Telus Corp. (TSX:T). Telecommunications. Up 18 cents, or 0.59 per cent, at $30.83 on 2.78 million shares. The telecom company said it will double the amount it is willing to spend to buy back its stock. It said it will to spend up to $1 billion to buy back its shares by the end of this year. As of June 30, Telus had spent about $281 million buying back its stock.