SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G/A
Under the Securities Exchange Act of 1934
(Amendment No. 3)*
PETROCORP INCORPORATED
(Name of Issuer)
COMMON STOCK
(Title of Class of Securities)
71645N100
(CUSIP Number)
Check the following box if a fee is being paid with this statement [ ]. (A fee
is not required only if the filing person: (1) has a previous statement on file
reporting beneficial ownership of more than five percent of the class of
securities described in Item 1; and (2) has filed no amendment subsequent
thereto reporting beneficial ownership of five percent or less of such class.)
(See Rule 13d-7.)
*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).
<PAGE>
CUSIP No. 71645N100 13G/A Page 2 of 6 Pages
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1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
HUGHES INVESTMENT MANAGEMENT COMPANY on EIN 953371124
behalf of the Hughes Retirement Plans Trust (formerly
the Master Trust for the Hughes Aircraft Company Retirement Plans)
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2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ]
(b) [ ]
- -----------------------------------------------------------------------------
3 SEC USE ONLY
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4 CITIZENSHIP OR PLACE OF ORGANIZATION
CALIFORNIA
- -----------------------------------------------------------------------------
NUMBER OF 5 SOLE VOTING POWER
SHARES 0
BENEFICIALLY
--------------------------------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH 340,000
REPORTING
--------------------------------------------------------------
PERSON 7 SOLE DISPOSITIVE POWER
WITH 0
--------------------------------------------------------------
8 SHARED DISPOSITIVE POWER
340,000
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9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
340,000
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10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- -----------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
3.959%
- -----------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
EP
- -----------------------------------------------------------------------------
*SEE INSTRUCTIONS BEFORE FILLING OUT
<PAGE>
CUSIP NO. 71645N100 13G/A Page 3 of 6 Pages
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1 NAME OF REPORTING PERSON
S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
HUGHES ELECTRONICS CORPORATION EIN 951778500
(formerly HUGHES AIRCRAFT COMPANY)
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2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
(a) [ ]
(b) [ ]
- -----------------------------------------------------------------------------
3 SEC USE ONLY
- -----------------------------------------------------------------------------
4 CITIZENSHIP OR PLACE OF ORGANIZATION
DELAWARE
- -----------------------------------------------------------------------------
NUMBER OF 5 SOLE VOTING POWER
SHARES 0
BENEFICIALLY
--------------------------------------------------------------
OWNED BY 6 SHARED VOTING POWER
EACH 340,000
REPORTING
--------------------------------------------------------------
PERSON 7 SOLE DISPOSITIVE POWER
WITH 0
--------------------------------------------------------------
8 SHARED DISPOSITIVE POWER
340,000
- -----------------------------------------------------------------------------
9 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
340,000
- -----------------------------------------------------------------------------
10 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*
- -----------------------------------------------------------------------------
11 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
3.959%
- -----------------------------------------------------------------------------
12 TYPE OF REPORTING PERSON*
HC
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*SEE INSTRUCTIONS BEFORE FILLING OUT
<PAGE>
Page 4 of 6 Pages
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Item 1. (a) Name of Issuer: Petrocorp Incorporated
(b) Address of Issuer's Principal Executive Offices:
16800 Greenspoint Park Drive
Suite 300, North Atrium
Houston, Texas 77060
Item 2. (a) Name of Person Filing:
Hughes Investment Management Company on behalf of the
Hughes Retirement Plans Trust (formerly the Master
Trust of the Hughes Aircraft Company Retirement Plans)
Hughes Electronics Corporation (formerly Hughes
Aircraft Company)
(b) Address of Principal Business Office:
7200 Hughes Terrace
Los Angeles, California 90045-0066
(c) Citizenship: N/A
(d) Title of Class of Securities: Common
(e) CUSIP Number: 71645N100
Item 3. If this statement is filed pursuant to Rules 13d-1(b),
or 13d-2(b), check whether the person filing is a:
(a) Hughes Investment Management Company on behalf of the
Hughes Retirement Plans Trust is filing as an
Employee Benefit Plan, Pension Fund which is subject
to the provisions of the Employee Retirement Income
Security Act of 1974.
(b) Hughes Electronics Corporation is filing as a Parent
Holding Company.
<PAGE>
Page 5 of 6 Pages
Item 4. Ownership. N/A
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 5 percent of the class of securities
check the following [ X ].
Item 6. Ownership of More Than Five Percent on Behalf of Another Person.
Hughes Investment Management Company on behalf of the
Hughes Retirement Plans Trust
Item 7. Identification and Classification of the Subsidiary which
Acquired the Security Being Reported on By the Parent
Holding Company.
Hughes Investment Management Company
Item 8. Identification and Classification of Members of the Group. N/A
Item 9. Notice of Dissolution of Group. N/A
Item 10. Certification. By signing below I certify that, to
the best of my knowledge and belief, the securities
referred to above were acquired in the ordinary
course of business and were not acquired for the
<PAGE>
Page 6 of 6 Pages
purpose of and do not have the effect of changing or
influencing the control of the issuer of such
securities and were not acquired 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.
Date: February 6, 1998
HUGHES INVESTMENT MANAGEMENT COMPANY
on behalf of the Hughes Retirement
Plans Trust and Hughes Electronics
Corporation 1
By: /s/ John F. Cook
-------------------------------
John F. Cooke
Its President
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1 Pursuant to the Joint Filing Agreement by and between
Hughes Investment Management Company and Hughes
Electronics Corporation (formerly Hughes Aircraft Company)
previously filed, this document is being filed on behalf
of each of such parties.
