The lawsuit went to court but was dismissed in 2008.
All five lawsuits were dismissed by the end of 2002.
A federal judge dismissed the lawsuit on March 31, 2009.
In each case, he said, the lawsuits were dismissed before trial.
The lawsuit was later dismissed under the authority of the new act.
After a long legal battle, the lawsuit was dismissed in 2012.
The lawsuit was dismissed three months later, according to court documents.
A similar lawsuit filed last year by the group was dismissed.
The lawsuit by one of the executives was dismissed the following year.
The oil companies had sought to dismiss the lawsuit brought by four Western states.