A.G Edwards & Sons 27, 95 Agip 83 Alberta Energy 39 Amerada Hess 11, 71, 83 Amoco 64 Anadarko Petroleum Corp. 4 Anadarko Petroleum Corp. 9, 16, 35, 65, 68, 76, 84, 87 Anschutz Bulgaria Ltd. 83 Apache Corp. 68, 83 Arabian American Oil Co. 64 Arco 32, 51 Arco Alaska Inc. 32 Arctic Slope Regional Corp. 37, 42 Armadillo ...