From:

Conservatives Seek IRS Inquiry On Environmental Group's Status

By Anne Marie Chaker, The Wall Street Journal, June 21, 2001

…

"Frontiers. . . was founded in 1995 by former Sen. Malcolm Wallop, a Wyoming Republican and friend of Vice President Dick Cheney. Its biggest contributors include Philip Morris Cos., Exxon Mobil Corp. and RJ Reynolds Tobacco Holdings Inc."