The BP oil spill in the Gulf of Mexico was the top story among a mix of media for the week ended July 4, but there are signs the story may be "losing some steam." That is according to the latest Project for Excellence In Journalism's weekly news coverage index. The story captured 15% of the news hole, down from the week before, when it had 23% for the number two spot behind the General McChrystal story. Two the environmental disaster commanded 44% of the news hole. It was the lowest percentage of coverage since April 19-25, when the oil rig first exploded and the underwater gusher began.