SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549





                                   FORM 8-K



                                CURRENT REPORT

                    Pursuant to Section 13 or 15(d) of the
                      Securities and Exchange Commission



               Date of Report (Date of earliest event reported)
                                 June 1, 1998


                              HOWELL CORPORATION
            (Exact name of registrant as specified in its charter)



        DELAWARE                    1-8704               74-1223027
      (State or other             (Commission           (IRS Employer
      jurisdiction of             File Number)        Identification No.)
      incorporation)


      1111 Fannin, Suite 1500, Houston, Texas                    77002
            (Address of principal office)                      (Zip Code)



         Registrant's telephone number, including area code: (713) 658-4000



Item 5.     Other Events.
            -------------

      On June 1, 1998,  Howell Petroleum  Corporation (the "Buyer"),  a wholly
owned subsidiary of Howell  Corporation (the "Company"),  amended its existing
credit  facility  with Bank of Montreal (as amended,  the "Credit  Facility"),
which had been  entered  into in December  1997 in  connection  with  Howell's
acquisition (the  "Acquisition")  of certain oil and gas properties from Amoco
Production   Company.   For  information  with  respect  to  the  Acquisition,
reference is made to the Company's  Current  Report on Form 8-K dated December
17, 1997,  as amended by Form 8-K/A filed  March 3,  1998 and Form 8-K/A filed
June 5, 1998.

      The  Credit   Facility   comprises   two   tranches.   Tranche  A  is  a
$130,000,000  five-year  revolving  credit  facility with a current  borrowing
base  of  $110,000,000   which  is  subject  to  semi-annual   borrowing  base
redeterminations  based on the Company's oil and natural gas  properties.  The
Company is required to pay commitment  fees on the unused portion of Tranche A
at a rate of .25% per annum,  if 50% or less of the borrowing base is used, or
 .30% per annum,  if more than 50% of the  borrowing  base is used.  The lesser
of  $5,000,000  or  available  credit  under  Tranche  A may  also be used for
letters of credit on the Company's behalf.  Tranche B is a $30,000,000  single
pay term loan facility that was used to finance the Acquisition,  and which is
due  May 30,  1999.  The Credit  Facility  contains an overall  limitation  on
total loans under the facility to $150,000,000.

      Outstanding  amounts  under the Credit  Facility bear  interest,  at the
Company's  option, at either (i) the higher of the federal funds rate plus .5%
or Bank of Montreal's prime rate, plus, in either case, the applicable  margin
or (ii) LIBOR plus the applicable margin.

      The  Credit  Facility  is  currently  unsecured.   The  Credit  Facility
contains customary  affirmative and negative covenants,  including limitations
on the ability of the Company to incur additional debt, sell assets,  merge or
consolidate  with  other  persons or pay  dividends  on its  capital  stock in
excess  of  historical  levels  and a  prohibition  on change  of  control  or
management.  In  addition,  the  Company  must raise at least  $50 million  in
equity or  subordinated  debt by May 30,  1999 and, if Tranche B is not repaid
by December 1,  1998, grant a first lien on the oil and natural gas properties
of the  Buyer  representing  80% of the  value  thereof  as  reflected  in the
applicable  reserve  reports.  The Credit  Facility  requires  the  Company to
maintain,  at each  quarter end,  tangible  net worth of at least  $40,000,000
plus  (i) 75% of the  proceeds  received  by the Company  from equity  capital
offerings after December 1997, and (ii) 75% of the Company's  consolidated net
income for each fiscal year (or quarter,  for each quarter  test) in which net
income  is  positive  beginning  with the year  ended  December 31,  1998.  In
addition,  the Credit  Facility  requires  the  Company to maintain a ratio of
current assets plus Tranche A  borrowing capacity to current liabilities of at
least 1.0 to 1.0 and an  interest  coverage  ratio of not less than 2.0 to 1.0
until the end of 1998 and 2.5 to 1.0 thereafter.

Item 7.     Financial Statements and Exhibits.
            ----------------------------------

      (c)   Exhibits.
            ---------

            99.1  Credit  Agreement  dated  December 17, 1997  between  Howell
                  Petroleum  Corporation  and Bank of Montreal.  (Incorporated
                  by  reference to Exhibit  99.1 to the  Registrant's  Current
                  Report on Form 8-K dated  December 17,  1997,  as amended by
                  Form 8-K/A  filed March 3, 1998 and Form 8-K/A filed June 5,
                  1998.)

            99.2  Guaranty  Agreement  dated  December 17, 1997 between Howell
                  Corporation   and  Bank  of   Montreal.   (Incorporated   by
                  reference  to  Exhibit  99.1  to  the  Registrant's  Current
                  Report on Form 8-K dated  December 17,  1997,  as amended by
                  Form 8-K/A  filed March 3, 1998 and Form 8-K/A filed June 5,
                  1998.)

            99.3  First  Amendment  to  Credit  Agreement  dated  June 1, 1998
                  between Howell  Petroleum  Corporation  and Bank of Montreal
                  and Ratification by Howell Corporation. (filed herewith)



                                  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.

                                                HOWELL CORPORATION


Date: June 12, 1998                             By: /s/ ROBERT T. MOFFETT  
                                                      Robert T. Moffett
                                                       Vice President





                                EXHIBIT INDEX


Exhibit
Number                            Description                           


  99.1            Credit  Agreement  dated  December 17, 1997  between  Howell
            Petroleum  Corporation  and  Bank of  Montreal.  (Incorporated  by
            reference to Exhibit 99.1 to the  Registrant's  Current  Report on
            Form 8-K dated  December 17, 1997,  as amended by Form 8-K/A filed
            March 3, 1998 and Form 8-K/A filed June 5, 1998.)

  99.2            Guaranty  Agreement  dated  December 17, 1997 between Howell
            Corporation  and Bank of Montreal.  (Incorporated  by reference to
            Exhibit 99.1 to the Registrant's  Current Report on Form 8-K dated
            December  17,  1997,  as amended by Form 8-K/A filed March 3, 1998
            and Form 8-K/A filed June 5, 1998.)

  99.3            First  Amendment  to  Credit  Agreement  dated  June 1, 1998
            between  Howell  Petroleum  Corporation  and Bank of Montreal  and
            Ratification by Howell Corporation. (filed herewith)