By all accounts this was a planned, if not completely controlled, transition spearheaded by an aggressive chairman, Michael C.

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How do we prevent or police the transition from competitive to dangerously aggressive?

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Mr. McClendon pledged that it was "now time to transition" from being an aggressive company that discovered and leased new oil and gas fields to one that would focus on cutting costs and delivering "exceptional returns" for investors.

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The U.S. and the European Union have embarked on an aggressive system of mandates and subsidies designed to transition the world away from geological fuel sources towards agricultural ones.

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