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

The Canadian Press

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

Toronto Stock Exchange (12,787.19 down 56.89 points):

Petrominerales Ltd. (TSX:PMG). Oil and gas. Up $3.96, or 51.16 per cent, at $11.70 on 18 million shares. Stock in the company soared after Pacific Rubiales Energy Corp. (TSX:PRE) offered to buy the Calgary-based oil and gas company in a proposed deal worth roughly $1.6-billion. Pacific Rubiales shares were down $1.20, or 5.57 per cent, at $20.34 on 1.7 million shares.

Brookfield Office Properties Inc. (TSX:BPO). Real estate. Up $2.45, or 14.17 per cent, at $19.74 on 10.3 million shares. Brookfield Property Partners LP (TSX:BPY.UN) offered to buy the company in a US$5-billion cash-and-stock deal that it said will create one of the world's largest commercial property companies. Brookfield Property Partners units were down one cent at $19.99.

Mirabela Nickel Ltd. (TSX:MNB). Miner. Down half-a-cent, or 25 per cent, at 1.5 cents on 3.8 million shares.

Manulife Financial Corp. (TSX:MFC). Insurer. Down 34 cents, or 1.96 per cent, at $17.04 on 3.5 million shares.

Goldcorp Inc. (TSX:G). Miner. Up 25 cents, or 0.94 per cent, at $26.80 on three million shares. The gold sector was slightly higher even as December bullion declined $12.20 to US$1,327 an ounce.

Barrick Gold Corp. (TSX:ABX). Miner. Up seven cents, or 0.37 per cent, at $19.18 on 2.9 million shares.

Toronto Venture Exchange (941.15 down 11.71 points):

Hunt Mining Corp. (TSXV:HMX). Miner. Up one cent, or 40 per cent, at 3.5 cents on 9.9 million shares.

Sirona Biochem Corp. (TSXV:SBM). Health-care. Down two cents, or 11.43 per cent, at 15.5 cents on 5.8 million shares.

Companies reporting major news:

BlackBerry (TSX:BB). Wireless communications. Down 18 cents, or 2.17 per cent, at $8.10 on 2.4 million shares. Analysts predict that Fairfax Financial will follow through on plans to buy BlackBerry but could pay substantially less than originally announced as the smartphone maker's market value erodes. Fairfax announced Sept. 23 that it was leading a group that would offer US$9 per share, subject to a number of conditions.

SNC-Lavalin Group (TSX:SNC). Up $1, or 2.42 per cent, at $42.35 on 619,038 shares. It plans to sell a minority stake in AltaLink, which owns more than half of Alberta’s electricity transmission grid. The plan is part of a broader strategy of reducing its investments in infrastructure assets.