11:58 AM EST - Penn West Petroleum Ltd. : announced its results for the first quarter ended March 31, 2011. Net income was $291 million ($0.63 per share-basic) compared to net income of $98 million ($0.23 per share-basic) in the first quarter of 2010. Penn West Petroleum Ltd.
shares T.PWT are trading up $0.22 at $22.77.
