1 ================================================================================ SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED) APRIL 1, 1998 OCCIDENTAL PETROLEUM CORPORATION (Exact name of registrant as specified in its charter) DELAWARE 1-9210 95-4035997 (State or other jurisdiction (Commission (I.R.S. Employer of incorporation) File Number) Identification No.) 10889 WILSHIRE BOULEVARD, LOS ANGELES, CALIFORNIA 90024 (Address of principal executive offices) (ZIP code) Registrant's telephone number, including area code: (310) 208-8800 ================================================================================ 2 Item 5. Other Events Exhibits are filed herewith in connection with the Registration Statement on Form S-3 (File No. 33-59395) declared effective by the Securities and Exchange Commission (the "Commission") on July 12, 1995, which, together with the Registration Statement on Form S-3 (File No. 333-49207) filed on April 2, 1998 pursuant to Rule 462(b) of the rules and regulations of the Commission under the Securities Act of 1933, as amended, relate to an aggregate of $900,000,000 of senior debt securities of Occidental Petroleum Corporation. Item 7. Exhibits 1.1 Underwriting Agreement, dated April 2, 1998 among Occidental Petroleum Corporation and the Underwriters named therein. 4.1 Form of 6.50% Senior Notes due April 1, 2005. 4.2 Form of 7.20% Senior Notes due April 1, 2028. 4.3 Form of 6.40% Senior Notes due April 1, 2013, Mandatorily Tendered on April 1, 2003. 8.1 Opinion of Skadden, Arps, Slate, Meagher & Flom LLP regarding tax matters. 2 3 SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. OCCIDENTAL PETROLEUM CORPORATION (Registrant) DATE: April 3, 1998 By: /s/ S. P. Dominick, Jr. ------------------------------------ Name: S. P. Dominick, Jr. Title: Vice President and Controller (Chief Accounting and Duly Authorized Officer) 3