Anadarko Petroleum Corp. (NYSE: APC) opened a tender offer to purchase $1 billion of its outstanding 6.375% senior notes due 2017, the company said April 8.

The tender offer is scheduled to expire May 5, and the early tender date is April 21.

Credit Suisse Securities (USA) LLC and Goldman Sachs & Co. are the dealer managers.

Anadarko Petroleum Corp. is based in Houston.