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