UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
(Rule 13d-102)
INFORMATION STATEMENT PURSUANT TO RULES 13d-1 AND 13d-2
UNDER THE SECURITIES EXCHANGE ACT OF 1934
3DX Technologies Inc.
(Name of Issuer)
Common Stock, par value $.01 per share
(Title of Class of Securities)
88554G109
(CUSIP Number)
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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 ("Act") 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).
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SCHEDULE 13G
CUSIP NO. 88554G109 PAGE 2 OF 5 PAGES
1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
C. Eugene Ennis
2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP* (A) / /
(B) / /
3 SEC USE ONLY
4 CITIZENSHIP OR PLACE OF ORGANIZATION
United States of America
NUMBER OF 5 SOLE VOTING POWER 502,427
SHARES
BENEFICIALLY 6 SHARED VOTING POWER None
OWNED BY
EACH 7 SOLE DISPOSITIVE POWER 502,427
REPORTING
PERSON WITH 8 SHARED DISPOSITIVE POWER None
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING
PERSON
502,427
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW
/ /
(9) EXCLUDES CERTAIN SHARES*
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
6.9%
12 TYPE OF REPORTING PERSON*
IN
*SEE INSTRUCTIONS BEFORE FILLING OUT!
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SCHEDULE 13G
CUSIP NO. 88554G109 PAGE 3 OF 5 PAGES
ITEM 1 (A) NAME OF ISSUER
3DX Technologies Inc.
(B) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES
12012 Wickchester, Suite 250
Houston, Texas 77079
ITEM 2 (A) NAME OF PERSON FILING
C. Eugene Ennis
(B) ADDRESS OF PRINCIPAL BUSINESS OFFICE OR, IF NONE, RESIDENCE
12012 Wickchester, Suite 250
Houston, Texas 77079
(C) CITIZENSHIP
United States of America
(D) TITLE OF CLASS OF SECURITIES
Common Stock, par value $.01 per share.
(E) CUSIP NUMBER
88554G109
ITEM 3 IF THIS STATEMENT IS FILED PURSUANT TO RULE 13D-1(B), OR
13D-2(B), CHECK WHETHER THE PERSON FILING IS A:
(a) / / Broker or dealer registered under Section 15 of the
Act,
(b) / / Bank as defined in Section 3(a)(6) of the Act,
(c) / / Insurance Company as defined in Section 3(a)(19)
of the Act,
(d) / / Investment Company registered under Section 8 of
the Investment Company Act,
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SCHEDULE 13G
CUSIP NO. 88554G109 PAGE 4 OF 5 PAGES
(e) / / Investment Adviser registered under Section 203 of
the Investment Advisers Act of 1940,
(f) / / Employee Benefit Plan, Pension Fund which is
subject to the provisions of the Employee
Retirement Income Security Act of 1974 or
Endowment Fund; see
13d-1(b)(1)(ii)(F),
(g) / / Parent Holding Company, in accordance with Rule
13d-1(b)(ii)(G); see Item 7,
(h) / / Group, in accordance with Rule 13d-1(b)(1)(ii)(H).
This statement is not being filed pursuant to Rule 13d-1(b) or
13d-2(b).
ITEM 4 OWNERSHIP
(A) AMOUNT BENEFICIALLY OWNED
502,427 Shares
(B) PERCENT OF CLASS1
6.9%
(C) NUMBER OF SHARES AS TO WHICH SUCH PERSON HAS:
(I) SOLE POWER TO VOTE OR TO DIRECT THE VOTE: 502,427
shares
(II) SHARED POWER TO VOTE OR TO DIRECT THE VOTE: - 0 -
(III) SOLE POWER TO DISPOSE OR TO DIRECT THE
DISPOSITION OF: 502,427 shares
(IV) SHARED POWER TO DISPOSE OR TO DIRECT THE
DISPOSITION OF: - 0 -
ITEM 5 OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS
Not applicable.
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1 According to most recent available filing with the Securities
and Exchange Commission in which such number is required to be
indicated and after giving effect to: (i) the issuance of
375,000 shares of Issuer's Common Stock in connection with the
over-allotment option which was exercised in full on January 17,
1997 and (ii) the utilization of a cashless exercise provision
in connection with the exercise by the filing person of certain
warrants for shares of the Issuer's capital stock.
<PAGE>
SCHEDULE 13G
CUSIP NO. 88554G109 PAGE 5 OF 5 PAGES
ITEM 6 OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON
Not applicable.
ITEM 7 IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH
ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING
COMPANY
Not applicable.
ITEM 8 IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP
Not applicable.
ITEM 9 NOTICE OF DISSOLUTION OF GROUP
Not applicable.
ITEM 10 CERTIFICATION
Not applicable.
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this Schedule 13G is true, complete and
correct.
Dated: February 13, 1997
By: /S/C. EUGENE ENNIS
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Name: C. Eugene Ennis
