0000797468-07-000080 4 1 20070608 20070612 20070612 OCCIDENTAL PETROLEUM CORP /DE/ 0000797468 1311 954035997 DE 1231 10889 WILSHIRE BLVD LOS ANGELES CA 90024 3102088800 10889 WILSHIRE BOULEVARD LOS ANGELES CA 90024 HALLOCK RICHARD W 0001026546 4 34 001-09210 07916083 3102088800 C/O OCCIDENTAL PETROLEUM CORP 10889 WILSHIRE BLVD LOS ANGELES CA 90024 4 1 primary_doc.xml PRIMARY DOCUMENT