ENI Petroleum Co. Inc., a subsidiary of ENI SpA, Rome, (NYSE: E) plans to acquire the offshore E&P operations of Dominion Resources Inc., Richmond, Va., (NYSE: D) for approximately $4.8 billion. The assets include operations on the Gulf of Mexico shelf and in deep water offshore Texas and Louisiana. The major producing fields include Devils Tower, Triton, Goldfinger and Front Runner. Production is 503 million cubic feet of gas equivalent per day. Proved reserves are approximately 967 billion cubic feet equivalent.