Polar Tankers Inc., a subsidiary of ConocoPhillips Co., has agreed to pay $588,000 to help compensate the public for environmental harm caused by the October 2004 crude oil spill into Puget Sound’s Dalco Passage near Tacoma. The payment would come under a proposed settlement agreement or consent decree filed this week in U.S. District Court, Western Washington Division involving Polar Tankers and the United States, state of Washington, Muckleshoot Indian Tribe and Puyallup Tribe of Indians. A consent decree in federal court makes no finding of guilt or innocence. The U.S. Attorney General’s action was made at the request of the National Oceanic and Atmospheric Administration and the U.S.