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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
 Washington, D.C. 20549
 FORM 10-Q/A
 AMENDMENT No. 1
 þ QUARTERLY REPORT PURSUANT TO SECTION 13(a) OR 15(d) OF
THE SECURITIES EXCHANGE ACT OF 1934
 For the quarterly period ended March 31, 2007
 OR
 o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF
THE SECURITIES EXCHANGE ACT OF 1934
 For the transition period from  to
 Commission File No. 001-11899
 
 THE HOUSTON EXPLORATION COMPANY
 (Exact name of registrant as specified in its charter)
 Delaware
(State or Other Jurisdiction of 
Incorporation or Organization)
    
    22-2674487
(IRS Employer Identification No.)
 1100 Louisiana, Suite 2000
Houston, Texas
(Address of Principal Executive Offices)
    
    77002-5215
(Zip Code)
 (713) 830-6800
 (Registrants Telephone Number, including Area Code)
 
 þ o
 þ o o
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EXPLANATORY NOTE
   -1-




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TABLE OF CONTENTS
 Part II.
    
    Other Information
    
    
    3Item 6.
    
    Exhibits
    
    
    3SIGNATURES
    
    
    4Certification of CEO Pursuant to Section 302Certification of CFO Pursuant to Section 302Certification of CEO Pursuant to Section 906Certification of CFO Pursuant to Section 906
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Part II. Other Information
 
 Item 6. Exhibits
 EXHIBITSDESCRIPTION2.1(1)
    
    
    
    Agreement and Plan of Merger dated as of
January 7, 2007 by and among the Company,
Forest Oil Corporation and MJCO
Corporation (filed as exhibit 2.1 to our
Current Report on Form 8-K dated January
7, 2007 (file No. 001-11899) and
incorporated by reference herein).3.1(1)
    
    
    
    Restated Bylaws of The Houston Exploration Company, as amended April 23, 2007
(filed as Exhibit 3.1 to our Current Report on Form 8-K dated April 27, 2007 (File No.
001-11899) and incorporated by reference).4.1(1)
    
    
    
    Second Amendment to Rights Agreement dated
as of January 7, 2007 between The Houston
Exploration Company and The Bank of New
York, as Rights Agent (filed as exhibit 4.1
to our Current Report on Form 8-K dated
January 7, 2007 (file No. 001-11899) and
incorporated by reference herein).10.1(1)(2)
    
    
    
    First Amendment to The Houston Exploration
Company Supplemental Executive Retirement
Plan (filed as Exhibit 10.3 to our Current
Report on Form 8-K dated January 7, 2007
(File No. 001-11899) and incorporated by
reference herein).10.2(1)(2)
    
    
    
    Form of Amendment No. 2 to [Amended and
Restated] Employment Agreement entered into
by and between The Houston Exploration
Company and each of William G. Hargett,
Steven L. Mueller, James F. Westmoreland,
Roger B. Rice, Joanne C. Hresko, John E.
Bergeron Jr., Jeffrey B. Sherrick, Robert
T. Ray and Carolyn M. Campbell (filed as
Exhibit 10.1 to our Current Report on Form
8-K dated January 7, 2007 (file No.
001-11899) and incorporated by reference
herein).10.3(1)(2)
    
    
    
    Second Amendment to The Houston Exploration
Company Change of Control Plan (filed as
exhibit 10.4 to our Current Report on Form
8-K dated January 7, 2007 (file No.
001-11899) and incorporated by reference
herein).12.1(1)
    
    
    
    Computation of ratio of earnings to fixed
charges (filed as exhibit 12.1 to our
Quarterly Report on Form 10-Q for the three
months ended March 31, 2007 (file No.
001-11899) and incorporated by reference
herein).31.1
    
    
    
    Certification of William G. Hargett, Chief
Executive Officer, as required pursuant to
Section 302 of the Sarbanes-Oxley Act of
2002.31.2
    
    
    
    Certification of Robert T. Ray, Chief
Financial Officer, as required pursuant to
Section 302 of the Sarbanes-Oxley Act of
2002.32.1
    
    
    
    Certification of William G. Hargett, Chief
Executive Officer, as required pursuant to
Section 906 of the Sarbanes-Oxley Act of
2002.32.2
    
    
    
    Certification of Robert T. Ray, Chief
Financial Officer, as required pursuant to
Section 906 of the Sarbanes-Oxley Act of
2002.
 
 (1)
    
    Previously filed.(2)
    
    Identified as a management contract or compensation plan or arrangement -3-




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SIGNATURES
  THE HOUSTON EXPLORATION COMPANYBy:
    /s/ William G. HargettWilliam G. HargettDate: May 10, 2007
    
    Chairman, President and Chief Executive Officer By:
    /s/ Robert T. RayRobert T. RayDate: May 10, 2007
    
    Senior Vice President and Chief Financial Officer By:
    /s/ James F. WestmorelandJames F. WestmorelandDate: May 10, 2007
    
    Vice President and Chief Accounting Officer -4-




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EXHIBIT INDEX
 2.1(1)
    
    
    
    Agreement and Plan of Merger dated as of
January 7, 2007 by and among the Company,
Forest Oil Corporation and MJCO
Corporation (filed as exhibit 2.1 to our
Current Report on Form 8-K dated January
7, 2007 (file No. 001-11899) and
incorporated by reference herein).3.1(1)
    
    
    
    Restated Bylaws of The Houston Exploration Company, as amended April 23, 2007
(filed as Exhibit 3.1 to our Current Report on Form 8-K dated April 27, 2007 (File No.
001-11899) and incorporated by reference).4.1(1)
    
    
    
    Second Amendment to Rights Agreement dated
as of January 7, 2007 between The Houston
Exploration Company and The Bank of New
York, as Rights Agent (filed as exhibit 4.1
to our Current Report on Form 8-K dated
January 7, 2007 (file No. 001-11899) and
incorporated by reference herein).10.1(1)(2)
    
    
    
    First Amendment to The Houston Exploration
Company Supplemental Executive Retirement
Plan (filed as Exhibit 10.3 to our Current
Report on Form 8-K dated January 7, 2007
(File No. 001-11899) and incorporated by
reference herein).10.2(1)(2)
    
    
    
    Form of Amendment No. 2 to [Amended and
Restated] Employment Agreement entered into
by and between The Houston Exploration
Company and each of William G. Hargett,
Steven L. Mueller, James F. Westmoreland,
Roger B. Rice, Joanne C. Hresko, John E.
Bergeron Jr., Jeffrey B. Sherrick, Robert
T. Ray and Carolyn M. Campbell (filed as
Exhibit 10.1 to our Current Report on Form
8-K dated January 7, 2007 (file No.
001-11899) and incorporated by reference
herein).10.3(1)(2)
    
    
    
    Second Amendment to The Houston Exploration
Company Change of Control Plan (filed as
exhibit 10.4 to our Current Report on Form
8-K dated January 7, 2007 (file No.
001-11899) and incorporated by reference
herein).12.1(1)
    
    
    
    Computation of ratio of earnings to fixed
charges (filed as exhibit 12.1 to our
Quarterly Report on Form 10-Q for the three
months ended March 31, 2007 (file No.
001-11899) and incorporated by reference
herein).31.1
    
    
    
    Certification of William G. Hargett, Chief
Executive Officer, as required pursuant to
Section 302 of the Sarbanes-Oxley Act of
2002.31.2
    
    
    
    Certification of Robert T. Ray, Chief
Financial Officer, as required pursuant to
Section 302 of the Sarbanes-Oxley Act of
2002.32.1
    
    
    
    Certification of William G. Hargett, Chief
Executive Officer, as required pursuant to
Section 906 of the Sarbanes-Oxley Act of
2002.32.2
    
    
    
    Certification of Robert T. Ray, Chief
Financial Officer, as required pursuant to
Section 906 of the Sarbanes-Oxley Act of
2002.
 
 (1)
    
    Previously filed.(2)
    
    Identified as a management contract or compensation plan or arrangement -5-