05/14/2013 05:45 EDT | Updated 07/14/2013 05:12 EDT

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

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

Toronto Stock Exchange (12,667.22 up 9.13 points):

Surge Energy Inc. (TSX:SGY). Oil and gas. Down 37 cents, or 6.99 per cent, at $4.92 on 7.47 million shares. The drop nearly matched a gain of 7.3 per cent on Thursday.

Suncor Energy Inc. (TSX:SU). Oil and gas. Down 37 cents, or 1.14 per cent, at $31.95 on 4.19 million shares. The energy sector slipped 0.31 per cent to 252.39 points as the price of crude oil slid 10 cents to US$94.15 a barrel.

Barrick Gold Corp. (TSX:ABX). Miner. Down 43 cents, or 2.14 per cent, at $19.69 on 3.81 million shares. Chile's environmental regulator slapped the world's largest gold miner with a US$16- million fine, citing "very serious" environmental violations on its Pascua-Lama project. The country's Environmental Superintendent also stopped work on the US$8.5-billion project until Barrick deals with contaminated water containment issues.

Manulife Financial Corp. (TSX:MFC). Insurer. Down seven cents, or 0.44 per cent, at $15.95 on 3.66 million shares.

Kinross Gold Corp. (TSX:K). Miner. Down two cents, or 0.33 per cent, at $6 on 3.56 million shares. The gold sector was the biggest decliner on TSX, dropping 1.29 per cent to 188.64 points.

Toronto Venture Exchange (948.32 up 6.27 points):

Mustang Minerals Corp. (TSXV:MUM). Miner. Unchanged at two cents on 5.57 million shares.

Mart Resources Inc. (TSXV:MMT). Oil and gas. Up three cents, or 2.11 per cent, at $1.45 on 4.91 million shares.

Companies reporting major news:

Loblaw Companies Ltd. (TSX:L). Grocer. Up 39 cents, or 0.79 per cent, at $49.53 on 557,148 shares. Loblaw has filed a preliminary prospectus for a real estate investment trust that will include some 75 per cent of the company's real estate assets. The REIT will offer two series of senior unsecured debentures, with proceeds to be used to repay debt owed to Loblaw.

Manitoba Telecom Services Inc. (TSX:MBT). Communications. Up $1.83, or 5.70 per cent, at $33.93 on 1.49 million shares. Winnipeg-based MTS sold its Allstream business telecommunications arm to Accelero Capital Holdings, an Egyptian investment group. MTS said it will use about half of the $405 million in proceeds to reduce its pension and debt obligations.

National Bank (TSX:NA). Bank. Up $1.46, or 1.93 per cent, at $77.02 on 1.58 million shares. Canada's sixth-largest bank announced it will hike its dividend and buy back some of its shares after issuing an earnings report that beat analyst estimates by a wide margin.

Valeant Pharmaceuticals International Inc. (TSX:VRX). Drug maker. Up $10.18, or 13.25 per cent, at $87.02 on 1.31 million shares. Reports swirled that the Toronto-based company is in talks to buy eye-care company Bausch and Lomb for $9 billion.