Published: May 06, 2010 8:35 PM EDT

ON THE GULF OF MEXICO - Streaks of putrid, orange and rust-colored oil is creeping well west of the mouth of the Mississippi River in an area that has received less attention.

An Associated Press reporter saw hundreds of dead man-o-war in the area Thursday. The oil is in steaks ranging from a few feet wide to much larger swaths.

Much of the oil west of the river was still miles out in the Gulf, but there appeared to be little or no effort to contain or clean it up.

Jefferson Parish officials asked BP and the Coast Guard on Wednesday to bring booms, skimmers and workers to Grand Isle when oil was spotted about 50 miles away. The oil drifted closer by Thursday.