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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

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                                 SCHEDULE 14D-9
                Solicitation/Recommendation Statement Pursuant to
             Section 14(d)(4) of the Securities Exchange Act of 1934

                                (AMENDMENT NO. 1)

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                               HARCOR ENERGY, INC.
                            (Name of Subject Company)


                               HARCOR ENERGY, INC.
                        (Name of Person Filing Statement)


                     COMMON STOCK, PAR VALUE $.10 PER SHARE
                         (Title of Class of Securities)


                                   411 628 209
                      (CUSIP Number of Class of Securities)


                                 HARRY J. LAWSON
                                 GENERAL COUNSEL
                               HARCOR ENERGY, INC.
                        4400 POST OAK PARKWAY, SUITE 2220
                              HOUSTON, TEXAS 77027
                                 (713) 961-1804
                               FAX: (713) 961-9773
            (Name, address and telephone number of person authorized
                to receive notice and communications on behalf of
                            person filing statement)

                                 With a copy to:

                             Michael P. Finch, Esq.
                             Vinson & Elkins L.L.P.
                             1001 Fannin, Suite 2300
                              Houston, Texas 77002
                                 (713) 758-2128
                               Fax: (713) 615-5282

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         This Amendment No. 1 amends and supplements the
Solicitation/Recommendation Statement on Schedule 14D-9 (the "Schedule 14D-9")
of HarCor Energy, Inc., a Delaware corporation (the "Company"), relating to the
tender offer being made by Seneca West Corp., a Delaware corporation (the
"Purchaser") and a wholly-owned subsidiary of Seneca Resources Corporation, a
Pennsylvania corporation ("Parent"), to purchase all of the outstanding shares
of common stock, $.10 par value (the "Shares") of the Company, upon the terms
and subject to the conditions set forth in the Offer to Purchase dated April 6,
1998 and in the related Letters of Transmittal (which collectively constitute
the "Offer"). Terms used but not defined herein have the meanings subscribed to
such terms in the initial Schedule 14D-9.

ITEM 4.  THE SOLICITATION OF RECOMMENDATION.

         Item 4 is hereby amended to add the following to the Section entitled
"Reasons for the Board of Directors' Recommendation."

                  All of the factors considered by the Company Board fully
         support the recommendation of the Company Board that the stockholders
         accept the Offer and vote for adoption of the Merger Agreement, except
         for the historical market prices of the Common Stock prior to December,
         1997. From March, 1996 through November 13, 1997, the Common Stock
         traded generally in the range of $4.00 to $6.00 per share. This is the
         only negative element considered by the Company Board; however, the
         Company Board believes that because of the following matters it is not
         likely that the Common Stock will trade in that range again at any time
         in the foreseeable future. On November 13, 1997, the Company announced
         its third quarter results, reflecting a decline in revenues of 25% from
         revenues in the third quarter of 1996 and a decline of 28% from
         revenues in the nine-month period ended September 30, 1996. The
         decrease in revenues was a result of lower oil and gas production
         volumes and lower oil prices in the 1997 periods. Following this
         announcement, Standard & Poors downgraded the Company's outstanding
         14 7/8% Senior Secured Notes from B- to CCC, which the Company Board
         believed created a significant impairment on its ability to refinance
         those Notes. The market price of the Common Stock consequently fell
         steadily from $4.25 per share on November 13, 1997 to $1.81 per share
         on December 22, 1997. The market price of the Common Stock remained
         below $2.00 per share until after the Company's announcement on March
         31, 1998, that it had executed the Merger Agreement (on which date it
         briefly rose slightly above $2.00 per share but quickly dropped and all
         closing prices since that date have remained below $2.00 per share). In
         light of the foregoing and the continuing depressed market prices for
         crude oils, the Company Board believes that the market price for the
         Common Stock will remain below $2.00 per share for the foreseeable
         future if the Merger is not consummated and that the best alternative
         for the stockholders is a sale of the Company pursuant to the Offer and
         the Merger Agreement.

ITEM 9.  MATERIAL TO BE FILED AS EXHIBITS.

         Exhibit (c)(4) - Form of Severance Agreement with employees
                          of the Company (incorporated by reference to Exhibit
                          10.19 to Amendment No. 2 on Form 10-K/A to the
                          Company's Form 10-K Annual Report for the year ended
                          December 31, 1997, filed with the Commission).


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                                   SIGNATURES

         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.

                                        HARCOR ENERGY, INC.


                                        By:  /s/  MARK G. HARRINGTON
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                                                   Mark G. Harrington
                                                   Chairman of the Board and
                                                   Chief Executive Officer


Dated:  April 17, 1998