UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
Under the Securities Exchange Act of 1934
(Amendment No.____________)(1)
Natural Gas Services Group, Inc.
- --------------------------------------------------------------------------------
(Name of Issuer)
Common Stock and Warrants
- --------------------------------------------------------------------------------
(Title of Class of Securities)
63886Q-10-9
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(CUSIP Number)
Annual Filing
- --------------------------------------------------------------------------------
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:
[_] Rule 13d-1(b)
[_] Rule 13d-1(c)
[X] Rule 13d-1(d)
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* The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.
The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 or otherwise subject to the liabilities of that section of the Act but
shall be subject to all other provisions of the Act (however, see the Notes).
CUSIP No.63886Q-10-9 13G Page 2 of 5 Pages
________________________________________________________________________________
1. NAME OF REPORTING PERSONS
I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)
CAV-RDV, Ltd.
________________________________________________________________________________
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (See Instructions)
(a)
(b) [X]
________________________________________________________________________________
3. SEC USE ONLY
________________________________________________________________________________
4. CITIZENSHIP OR PLACE OF ORGANIZATION
Texas
________________________________________________________________________________
NUMBER OF 5. SOLE VOTING POWER
SHARES 488,128
_________________________________________________________________
BENEFICIALLY 6. SHARED VOTING POWER
OWNED BY 0
_________________________________________________________________
EACH 7. SOLE DISPOSITIVE POWER
REPORTING 488,128
_________________________________________________________________
PERSON 8. SHARED DISPOSITIVE POWER
WITH 0
________________________________________________________________________________
9. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
488,128
________________________________________________________________________________
10. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES
(See Instructions)
[_]
________________________________________________________________________________
11. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
10.6%
________________________________________________________________________________
12. TYPE OF REPORTING PERSON (See Instructions)
PN
________________________________________________________________________________
CUSIP No. 63886Q-10-9 13G Page 3 of 5 Pages
Item 1(a). Name of Issuer:
Natural Gas Services Group, Inc.
____________________________________________________________________
Item 1(b). Address of Issuer's Principal Executive Offices:
2911 SCR 1260, Midland, Texas 79706
____________________________________________________________________
Item 2(a). Name of Person Filing:
CAV-RDV, Ltd.
____________________________________________________________________
Item 2(b). Address of Principal Business Office, or if None, Residence:
1541 Shannon Drive, Lewisville, Texas 75077
____________________________________________________________________
Item 2(c). Citizenship:
U.S.A.
____________________________________________________________________
Item 2(d). Title of Class of Securities:
Common Stock and Warrants
____________________________________________________________________
Item 2(e). CUSIP Number:
63886Q-10-9
____________________________________________________________________
Item 3. If This Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b)
or (c), Check Whether the Person Filing is a:
(a) [_] Broker or dealer registered under Section 15 of the Exchange Act.
(b) [_] Bank as defined in Section 3(a)(6) of the Exchange Act.
(c) [_] Insurance company as defined in Section 3(a)(19) of the Exchange
Act.
(d) [_] Investment company registered under Section 8 of the Investment
Company Act.
(e) [_] An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E);
(f) [_] An employee benefit plan or endowment fund in accordance with
Rule 13d-1(b)(1)(ii)(F);
(g) [_] A parent holding company or control person in accordance with
Rule 13d-1(b)(1)(ii)(G);
(h) [_] A savings association as defined in Section 3(b) of the Federal
Deposit Insurance Act;
(i) [_] A church plan that is excluded from the definition of an
investment company under Section 3(c)(14) of the Investment
Company Act;
(j) [_] Group, in accordance with Rule 13d-1(b)(1)(ii)(J).
CUSIP No. 63886Q-10-9 13G Page 4 of 5 Pages
Item 4. Ownership.
Provide the following information regarding the aggregate number and
percentage of the class of securities of the issuer identified in Item 1.
(a) Amount beneficially owned:
488,128
______________________________________________________________________
(b) Percent of class:
10.6%
______________________________________________________________________
(c) Number of shares as to which such person has:
(i) Sole power to vote or to direct the vote 488,128
_______________________,
(ii) Shared power to vote or to direct the vote 0
_____________________,
(iii) Sole power to dispose or to direct the disposition of 488,128
__________,
(iv) Shared power to dispose or to direct the disposition of 0
________
Item 5. Ownership of Five Percent or Less of a Class.
If this statement is being filed to report the fact that as of the date
hereof the reporting person has ceased to be the beneficial owner of more than
five percent of the class of securities check the following [ ].
_______________________________________________________________________
Item 6. Ownership of More Than Five Percent on Behalf of Another Person.
_______________________________________________________________________
Item 7. Identification and Classification of the Subsidiary Which Acquired the
Security Being Reported on by the Parent Holding Company
_______________________________________________________________________
Item 8. Identification and Classification of Members of the Group.
_______________________________________________________________________
Item 9. Notice of Dissolution of Group.
______________________________________________________________________
Item 10. Certifications.
(a) The following certification shall be included if the statement is
filed pursuant to Rule 13d-1(b):
"By signing below I certify that, to the best of my knowledge and
belief, the securities referred to above were acquired and are held in
the ordinary course of business and were not acquired and not held for
the purpose of or with the effect of changing or influencing the
control of the issuer of the securities and were not acquired and are
not held in connection with or as a participant in any transaction
having such purpose or effect."
(b) The following certification shall be included if the statement is
filed pursuant to Rule 13d-1(c):
"By signing below I certify that, to the best of my knowledge and
belief, the securities referred to above were not acquired and are not
held for the purpose of or with the effect of changing or influencing
the control of the issuer of the securities and were not acquired and
are not held in connection with or as a participant in any transaction
having such purpose or effect."
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.
February 11, 2003
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(Date)
/s/ Kirk Mehaffey
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(Signature)
General Partner
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(Name/Title)
Note. Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-7 for other parties
for whom copies are to be sent.
Attention. Intentional misstatements or omissions of fact constitute federal
criminal violations (see 18 U.S.C. 1001).