Born-Digital or AnalogAnalogTranscriptLadd, J Bertram Elected executive vice president of Consolidated Gas and. Oil, Incorporated. Post S 17, 1968 p.3D Forms Ladd Petroleum Corporation with interests in eight states. Post 0 27, 1968 p.3J Feature on Denver oilman and his company. Post AP 17, 1977 P 3E,8E Leaves Ladd Petroleum Corp., John H. Moore named president., Post Ja 21, 1979 p.3ECollectionWestern History Subject IndexRelated MaterialWestern History Subject Index AbbreviationsType of MaterialIndex CardLanguageeng