Earlier in the year, before initial declines in service costs, Anadarko had estimated it would take $3 billion in capital expenditures to keep production levels flat. Now, Walker said, it would take about $2.7 billion, and there is still room for improvement.
The derailment of a train carrying oil in North Dakota on Monday, and the subsequent evacuations caused by its explosion, could draw more regulatory scrutiny to rail shipments of crude. But the soaring use of trains to move oil is a long-term trend that is not likely to change soon, analysts say.
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