Most actively traded companies on the TSX

Some of the most active companies traded Thursday on the Toronto Stock Exchange:

Toronto Stock Exchange (15,224.52, down 122.82 points):

Lundin Mining Corp. (TSX:LUN). Miner. Up 57 cents, or 10.50 per cent, to $6 on 9.8 million shares.

Macarthur Minerals Ltd. (TSX:MMS). Miner. Up 2.5 cents, or 71.43 per cent, to six cents on 9.5 million shares.

Bombardier Inc. (TSX:BBD.B). Aerospace, rail equipment. Down three cents, or 1.21 per cent, to $2.44 on 7.5 million shares.

Pacific Rubiales Energy Corp. (TSX:PRE). Oil and gas. Up 36 cents, or 9.68 per cent, to $4.08 on 6.6 million shares.

Canadian Oil Sands Ltd. (TSX:COS). Oil and gas. Up 45 cents, or 3.55 per cent, to $13.11 on 5.8 million shares.

Teck Resources Ltd. (TSX:TCK.B). Miner. Up 39 cents, or 2.18 per cent, to $18.29 on 5.7 million shares.

Companies reporting major news:

BCE Inc. (TSX:BCE). Telecommunications. Down 96 cents, or 1.77 per cent, to $53.19 on 1.7 million shares. BCE said net income attributable to shareholders in the first quarter was $532 million, down 13.5 per cent from the same time last year — largely due to a one-time, $137-million expense related to its court battle with Quebecor over satellite TV piracy.

Penn West Petroleum Ltd. (TSX:PWT). Oil and gas. Up four cents, or 1.35 per cent, to $3 on 3.7 million shares. The Calgary-based company posted a $248-million net loss in the first quarter as the mid-sized oil and gas producer felt the double impact of lower commodity prices and a weaker loonie. The net loss amounted to 49 cents per share, compared with a net loss of 18 cents per share or $89 million a year ago.