Shares of Vanguard Natural Resources LLC (NYSE: VNR) gained about 0.5% after the company and its subsidiary VNR Finance Corp announced their plans to publicly offer $300 million aggregate principal amount of senior unsecured notes due 2020.
Shares of China Eastern Airlines Corp Ltd (NYSE: CEA) fell about 0.9% after the company reported a decline in its 2011 net profit. China Eastern Airlines' net profit for the period dropped to CNY4.89 billion, from CNY5.38 billion in the year-ago period, as per China's accounting standards. Its revenue gained 12% to CNY83.97 billion versus CNY73.80 billion.
Shares of Weatherford International Ltd (NYSE: WFT) rose about 2.4% after the company appointed John H. Briscoe as the company's new chief financial officer. Briscoe will replace Andrew P. Becnel as CFO.
Shares of AutoNation Inc (NYSE: AN) rose about 1% after the company reported that its board has authorized the repurchase of another $250 million in company stock. In January, AutoNation reported a rise in its fourth-quarter earnings and revenue.
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