1 ================================================================================ UNITED STATES 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): June 30, 1998 CORE LABORATORIES N.V. (Exact name of registrant as specified in its charter) THE NETHERLANDS NOT APPLICABLE (State or Other Jurisdiction of Incorporation) (I.R.S. Employer Identification No.) 0-26710 (Commission File Number) HERENGRACHT 424 1017 BZ AMSTERDAM THE NETHERLANDS NOT APPLICABLE (Address of Principal Executive Offices) (Zip Code) Registrant's telephone number, including area code: (31-20) 420-3191 ================================================================================ 2 ITEM 2. ACQUISITION OR DISPOSITION OF ASSETS On June 30, 1998, Core Laboratories N.V. (the "Company") acquired all of the outstanding shares of Owen Oil Tools, Inc. ("Owen") in a stock-for-stock transaction, which will be accounted for as a purchase. The Company issued 2,276,831 shares of its NLG .03 par value common stock for the privately held Fort Worth, Texas based company. As additional information concerning the value of the assets acquired and the liabilities assumed becomes known adjustments will be made to the purchase price allocation and financial statements. Owen and its subsidiaries manufacture and sell down-hole well completion products and resell perforating supplies and down-hole tools to customers in the petroleum industry. Owen operates in seven countries and has approximately 360 employees. Significant susidiary tests set forth in Rule 3-05 of Regulation S-X have been calculated for Owen and fall below 20%, thus, accordingly, financial statements and proforma information need not be filed. ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS (a). Financial statements of business acquired. Not Applicable (b). Pro forma financial information. Not Applicable (c). Exhibits. The following exhibits are filed herewith: 10.1 Agreement and Plan of Merger among Core Laboratories N.V., Owen Oil Tools, Inc., Owen Acquisition, Inc., and each of the shareholders of Owen Oil Tools, Inc. dated as of June 30, 1998. 99.1 News Release of Core Laboratories N.V. regarding the acquisition of Owen dated July 1, 1998. 1 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. CORE LABORATORIES N.V. by: Core Laboratories International B.V. Dated: July 15, 1998 By: /s/ RICHARD L. BERGMARK -------------------------------------- Richard L. Bergmark Chief Financial Officer and Treasurer 2 4 INDEX TO EXHIBITS EXHIBIT NUMBER DESCRIPTION ------ ----------- 10.1 Agreement and Plan of Merger among Core Laboratories N.V., Owen Oil Tools, Inc., Owen Acquisition, Inc., and each of the shareholders of Owen Oil Tools, Inc. dated as of June 30, 1998. 99.1 News Release of Core Laboratories N.V. regarding the acquisition of Owen dated July 1, 1998. 1