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 May 8, 2003 Date of Report (date of earliest event reported) NATURAL GAS SERVICES GROUP, INC. -------------------------------- (Exact name of registrant as specified in its charter) Colorado 1-31398 5-2811855 ---------------------------- --------------------- ------------------- (State or other jurisdiction (Commission File No.) (I.R.S. Employer of incorporation) Identification No.) 2911 SCR 1260, Midland, Texas 79706 ----------------------------- ------------------- (Address of principal executive offices) (Zip Code) (915) 563-3974 --------------------- (Registrant's telephone number, including area code) ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS. (a) Financial Statements None (b) Pro Forma Financial Information None (c) Exhibits Exhibit 99 News Release issued by Natural Gas Services Group, Inc. on May 8, 2003 ITEM 12. RESULTS OF OPERATIONS AND FINANCIAL CONDITION. On May 8, 2003, Natural Gas Services Group, Inc. issued a news release announcing its unaudited financial results for the quarter ended March 31, 2003. SIGNATURES 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. Dated: May 8, 2003 NATURAL GAS SERVICES GROUP, INC. By: /s/ Wayne L. Vinson --------------------------- Wayne L. Vinson President EXHIBIT INDEX EXHIBIT NUMBER EXHIBIT -------------- ------- 99 News Release dated May 8, 2003