CERTIFICATION OF PERIODIC FINANCIAL REPORT PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsection (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned officer of Penseco Financial Services Corporation (the "Company") certifies to his knowledge that: (1) The Annual Report on Form 10-K of the Company for the year ended December 31, 2004 (the "Form 10-K") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (the "Act"); and (2) The information contained in the Form 10-K fairly presents, in all material respects, the financial conditions and results of operations of the Company as for the dates and for the periods referred to in the Form 10-K. /s/ OTTO P. ROBINSON JR ----------------------- Otto P. Robinson, Jr. President February 17, 2005 The foregoing certification is being furnished solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsection (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code). A signed original of the foregoing certification has been provided to the Company and will be retained by the Company in accordance with Rule 12b-11(d) of the Act and furnished to the Securities and Exchange Commission or its staff upon request. This certification is qualified in its entirety by the report to which it is attached as an exhibit. - -------------------------------------------------------------------------------- CERTIFICATION OF PERIODIC FINANCIAL REPORT PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002 Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsection (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code), the undersigned officer of Penseco Financial Services Corporation (the "Company") certifies to his knowledge that: (1) The Annual Report on Form 10-K of the Company for the year ended December 31, 2004 (the "Form 10-K") fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (the "Act"); and (2) The information contained in the Form 10-K fairly presents, in all material respects, the financial conditions and results of operations of the Company as for the dates and for the periods referred to in the Form 10-K. /s/ PATRICK SCANLON ----------------------- Patrick Scanlon Controller February 17, 2005 The foregoing certification is being furnished solely pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (subsection (a) and (b) of Section 1350, Chapter 63 of Title 18, United States Code). A signed original of the foregoing certification has been provided to the Company and will be retained by the Company in accordance with Rule 12b-11(d) of the Act and furnished to the Securities and Exchange Commission or its staff upon request. This certification is qualified in its entirety by the report to which it is attached as an exhibit.