SHELL OIL COMPANY Army cuts estimate to clean up Rocky Mountain Arsenal to $1.84 billion, wants Shell to share expense. RMN 0 4, 1983 p.1,16 Sued by U.S. government. to clean up chemicals dumped at Rocky Mtn. Arsenal. RMN D 10, 1983 p.1,10 Trial of Army's Rocky Mountain Arsenal $1.9 billion suit against Shell set for Jan 6, 1986. RMAI 0 27, 1984 p.27 Judge rules Shell must pay part of Rocky Mountain Arsenal clean-up bill. RMN Mr 282_ 1985 p.30