NEW YORK - Alaska regulators have asked BP PLC to turn over a broad range of documents related to oil spills at the company's pipelines and processing facilities in 2006 that forced the London-based oil company to shut part of Prudhoe Bay, the most productive U.S. oil field.
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In a subpoena issued in June, the Alaska Department of Environmental Conservation is seeking documents related to anti-corrosion measures taken by BP on its Prudhoe Bay pipelines, samples taken from the pipelines, correspondence between BP, the federal government and congressional investigators, and a host of other documents and records.
The subpoena, seen by Dow Jones Newswires, also seeks documents related to estimates of proved reserves and production rate forecasts from filings that the BP Prudhoe Bay Royalty Trust and BP made with the U.S. Securities and Exchange Commission.
BP spokesmen didn't return a call seeking comment. It's unclear why the state issued the additional subpoena. State officials didn't return a call seeking comment.
The subpoena adds to several the company has received from the state of Alaska and federal grand juries investigating how BP allowed its pipelines to become so corroded. The subpoena is part of a civil investigation, but the U.S. Environmental Protection Agency and the Justice Department are conducting a criminal investigation into whether BP's pipeline maintenance program violated the Clean Water Act.
Prudhoe Bay is operated by BP and owned by BP, ConocoPhillips Co. and Exxon Mobil Corp.