[GRAPHIC OMITTED] An Attractive Franchise Combination Investor Presentation November 20, 2001 [UNITED TRUST LOGO] [VISTA BANK LOGO] [GRAPHIC OMITTED] ---------------------------------------------------- \ Conference Call Information -------------------------------------------------- The senior management team of United National & Vista Bancorp will present an overview of the transaction and respond to investor questions via conference call on November 20, 2001, at 1:00 p.m. Eastern Standard Time. Please call in at least 10 minutes prior to the start of the call. - ------------------------------------------------------------------ * A taped playback of the call will be available through Monday, November 26th. - -------------------------------------------------------------------------------- Dial-In Number: (800) 937-6563 Pass Code: United National Bancorp Con Call Play-Back Number: (800) 839-0860 Pin: Pin: 1068 - -------------------------------------------------------------------------------- * Will not be available until one hour after the conference call is completed. [UNITED TRUST LOGO] 2 [VISTA BANK LOGO] [GRAPHIC OMITTED] ---------------------------------------------------- \ Forward Looking Statement -------------------------------------------------- This presentation contains forward looking statements with respect to the financial condition, results of operations and business of United National Bancorp ("UNBJ") and Vista Bancorp, Inc. ("Vista") and assuming the consummation of the transaction, a combined UNBJ and Vista, including statements relating to: (i) the cost savings and revenue enhancements and accretion to reported and cash earnings that will be realized from the merger; and (ii) the restructuring charges expected to be incurred in connection with the merger. These forward looking statements involve certain risks and uncertainties. Factors that may cause actual results to differ materially from those contemplated by such forward looking statements include, among other things, the following possibilities: (i) expected cost savings from the merger cannot be fully realized or realized within the expected time; (ii) revenues following the merger are lower than expected; (iii) competitive pressure among depository institutions increase significantly; (iv) the integration of the business of UNBJ and Vista costs more, takes longer or is less successful than expected; (v) the cost of additional capital is more than expected; (vi) changes in the interest rate environment reduces interest margins; (vii) general economic conditions, either nationally or in the states in which the combined company will be doing business, are less favorable than expected; (viii) legislation or regulatory requirements or changes adversely affect the business in which the combined company will be engaged; and (ix) changes may occur in the securities market. Neither UNBJ nor Vista assume any obligation to update forward looking statements. [UNITED TRUST LOGO] 3 [VISTA BANK LOGO] [GRAPHIC OMITTED] Transaction Summary [GRAPHIC OMITTED] ---------------------------------------------------- \ Transaction Summary -------------------------------------------------- Transaction: Acquisition of Vista by UNBJ Implied Transaction Price: $28.36 per Vista share (a) Transaction Value: Approximately $151 million Stock Component to Shareholders: Approximately 4,656,000 shares Cash Component to Shareholders: Approximately $37.6 million Cash/Stock Election: Cash/stock election procedure subject to proration Consideration Mix: Approximately 75% stock / 25% cash Walk-Away: 20% absolute & 20% index decline Accounting Treatment: Purchase accounting (Core deposit premium amortized over 8 years straight line) Lock- up: Option to acquire 19.9% of Vista's outstanding common stock issued to United National at an option price of $21.50 per share (a) Based on UNJB's closing price of $24.24 on November 16, 2001. [UNITED TRUST LOGO] 5 [VISTA BANK LOGO] [GRAPHIC OMITTED] ---------------------------------------------------- \ Transaction Summary -------------------------------------------------- Synergies: $6.4 million in annual cost saving (approximately 33.3% of Vista's total G&A expenses) 85% realized in 2002, 100% realized in 2003 Restructuring Charge: Estimated at $9.1 million after-tax ($13 million pre-tax) Board of Directors: Three board seats granted to Vista out of a pro forma total of 19 UNBJ board seats Due Diligence: Comprehensive due diligence completed on both sides, including credit file reviews Required Approvals: Shareholder approvals from both UNBJ & Vista Normal regulatory reviews Expected closing date: By April 30, 2002 Pro forma ownership: 23.5% Vista shareholders 76.5% UNBJ shareholders [UNITED TRUST LOGO] 6 [VISTA BANK LOGO] [GRAPHIC OMITTED] ---------------------------------------------------- \ Transaction Summary -------------------------------------------------- - -------------------------------------------------------------------------------- Deal Value (based on UNBJ's 11/16/01 close of $24.24): $151 Million Price / 12 Month Trailing EPS: 19.6x Price / 2002 EPS: 17.2x Price / 2002 EPS with Synergies: 12.0x Price / Book: 252.0% Price / Tangible Book: 253.0% Core Deposit Premium: 17.2% - -------------------------------------------------------------------------------- [UNITED TRUST LOGO] 7 [VISTA BANK LOGO] [GRAPHIC OMITTED] Strategic Rationale [GRAPHIC OMITTED] ---------------------------------------------------- \ A Compelling Combination -------------------------------------------------- > Financial merits of an in-market transaction with strategic elements of a market expansion deal - Ability to realize cost saves - Creation of a stronger competitor with a greater platform to deliver banking products > Logical geographic extension - Strengthens position in Hunterdon and Warren counties in New Jersey - Market entry into Pennsylvania > Positions UNBJ as an attractive alternative to larger banks with less personal service and smaller banks without the range of product offering > Complementary business models - Increased small business and middle market lending opportunities for UNBJ - Enhances UNBJ's Trust and Investment Services business, adding $53.9 million in assets under management > Low Execution Risk - UNBJ already has a significant presence within Vista's footprint - Compatible business philosophy [UNITED TRUST LOGO] 9 [VISTA BANK LOGO] [GRAPHIC OMITTED] ---------------------------------------------------- \ Unique Opportunity for Expansion into western -------------------------------------------------- NJ & new Entry into eastern PA [GRAPHIC OMITTED] [UNITED TRUST LOGO] 10 [VISTA BANK LOGO] [GRAPHIC OMITTED] ---------------------------------------------------- \ Pro Forma UNBJ: -------------------------------------------------- #2 in Hunterdon County and #1 in Warren County - ------------------------------------------------------------------------------------------ County Deposit Share - Hunterdon, NJ - ------------------------------------------------------------------------------------------ Rank Holding Company Deposits % of List Branches Type 1 FleetBoston Financial Corp. $580,668 30.9 17 Bank 2 Pro Forma - United National Bancorp. 270,301 14.4 11 Bank 2 Commerce Bancorp Inc. 248,211 13.2 6 Bank 3 Wachovia Corp. 212,074 11.3 9 Bank 4 United National Bancorp 203,979 10.8 8 Bank 5 PNC Financial Services Group 180,906 9.6 4 Bank 6 Unity Bancorp Inc. 112,809 6.0 3 Bank 7 Somerset Savings Bank, SLA 93,598 5.0 2 Thrift 8 Hudson United Bancorp 78,369 4.2 6 Bank 9 Vista Bancorp Inc. 66,322 3.5 3 Bank 10 Peapack-Gladstone Financial 39,819 2.1 2 Bank 11 Roselle Savings Bank 25,906 1.4 1 SB 12 Sun Bancorp Inc. 16,574 0.9 1 Bank 13 Summit Federal S&LA 13,987 0.7 1 Thrift 14 Progress Financial Corp. 8,304 0.4 1 Thrift ---------------------------------- GRAND TOTAL $1,881,526 100.0 64 ================================== - ------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------ County Deposit Share - Warren, NJ - ------------------------------------------------------------------------------------------ Rank Holding Company Deposits % of List Branches Type 1 Pro Forma - United National Bancorp. $536,948 35.8 12 Bank 1 Vista Bancorp Inc. $352,562 23.5 7 Bank 2 FleetBoston Financial Corp. 190,504 12.7 7 Bank 3 United National Bancorp 184,386 12.3 5 Bank 4 First Hope Bank, A Nat Bk Asc. 161,228 10.8 4 Bank 5 Wachovia Corp. 115,735 7.7 5 Bank 6 PNC Financial Services Group 112,961 7.5 5 Bank 7 Hudson City MHC 104,218 7.0 2 Bank 8 Fulton Financial Corp. 100,450 6.7 3 Bank 9 Valley National Bancorp 69,803 4.7 3 Bank 10 Washington Mutual Inc. 45,170 3.0 1 Thrift 11 Newton Financial Corporation 22,737 1.5 2 Bank 12 Bank of New York Co. 20,380 1.4 1 Bank 13 Summit Federal S&LA 19,301 1.3 1 Thrift ---------------------------------- GRAND TOTAL $1,499,435 100.0 46 ================================== - ------------------------------------------------------------------------------------------ - ---------------------------------- Source: SNL Securities, L.P. [UNITED TRUST LOGO] 11 [VISTA BANK LOGO] [GRAPHIC OMITTED] ---------------------------------------------------- \ Vista's Market Share -------------------------------------------------- in Pennsylvania Counties - ------------------------------------------------------------------------------------------ County Deposit Share - Northampton, PA - ------------------------------------------------------------------------------------------ Rank Holding Company Deposits % of List Branches Type 1 FleetBoston Financial Corp. $611,396 17.60 18 Bank 2 Wachovia Corp. 551,247 15.87 32 Bank 3 Fulton Financial Corp. 492,966 14.19 16 Bank 4 Keystone Savings Bank 373,555 10.75 8 SB 4 PNC Financial Services Group 294,826 8.49 8 Bank 5 First Colonial Group Inc. 277,278 7.98 10 Bank 6 Sovereign Bancorp Inc. 243,662 7.02 10 Thrift 7 Vista Bancorp Inc. 159,478 4.59 5 Bank 8 MNB Corporation 134,161 3.86 6 Bank 9 First Star Bancorp Inc. 126,226 3.63 4 Bank 10 Patriot Bank Corp. 77,047 2.22 4 Bank 11 Premier Bancorp Inc. 59,963 1.73 2 Bank 12 Palm Bancorp 23,319 0.67 2 Bank 13 Harleysville National Corp. 18,484 0.53 2 Bank 14 Allied Irish Banks 15,245 0.44 1 Bank 15 National Penn Bancshares Inc. 14,731 0.42 1 Bank ---------------------------------- TOTAL (1-15) $3,473,584 100.00 129 ================================== - ------------------------------------------------------------------------------------------ - ------------------------------------------------------------------------------------------ County Deposit Share - Lehigh, PA - ------------------------------------------------------------------------------------------ Rank Holding Company Deposits % of List Branches Type 1 Wachovia Corp. $1,631,376 40.52 47 Bank 2 Keystone Savings Bank 281,177 6.98 7 SB 3 PNC Financial Services Group 226,360 5.62 6 Bank 4 FleetBoston Financial Corp. 219,123 5.44 12 Bank 5 Sovereign Bancorp Inc. 218,175 5.42 13 Thrift 6 Fulton Financial Corp. 188,143 4.67 7 Bank 7 East Penn Bank 172,892 4.29 6 Bank 8 American Bank 125,047 3.11 1 Bank 9 Semperverde Holding Company 119,565 2.97 3 Bank 10 New Tripoli Bancorp, Inc. 114,977 2.86 1 Bank 20 Vista Bancorp Inc. 14,272 0.35 1 Bank ---------------------------------- TOP 10 $3,296,835 81.89 103 TOTAL (1-22) $4,025,981 100.00 143 ================================== - ------------------------------------------------------------------------------------------ - ---------------------------------- Source: SNL Securities, L.P. [UNITED TRUST LOGO] 12 [VISTA BANK LOGO] [GRAPHIC OMITTED] ---------------------------------------------------- \ Financially Attractive -------------------------------------------------- (with Straightforward, Conservative Assumptions) > As structured, the transaction is 1.5% accretive to GAAP EPS and 5.1% accretive to cash EPS in the first full year > Annual cost savings assumed are $6.4 million or 33.3% of Vista's non-interest expenses with 85% realized in 2002 and 100% realized in 2003. > Attractive Financing Structure - Contemplated issuance of $30 million of trust preferred securities in a low rate environment (i.e. tier 1 capital) significantly increasing shareholder value > No revenue enhancements have been assumed, but many opportunities have been identified [UNITED TRUST LOGO] 13 [VISTA BANK LOGO] [GRAPHIC OMITTED] ---------------------------------------------------- \ Enhanced Financial Scale Creates a Leading -------------------------------------------------- NJ Bank - -------------------------------------------------------------------------------- Financials as of 09/30/01 Pro Forma ($000's) Company ------- Assets $2,740,588 Gross Loans $1,604,148 Deposits $2,021,758 Equity(a) $281,868 Trust Assets Under Management $703,900 2002 Est. Net Income (with 85% of synergies) $36,160 Market Capitalization (b) $483,000 - -------------------------------------------------------------------------------- - ---------------------------------- (a) Estimated at time of closing (b) Based on pro forma shares outstanding and UNBJ's price of $24.24 as of November 16, 2001. [UNITED TRUST LOGO] 14 [VISTA BANK LOGO] [GRAPHIC OMITTED] ---------------------------------------------------- \ An Attractive and Complementary -------------------------------------------------- Loan Portfolio - ----------------------------------------------------------------------------------------------------------- ----------------------- United National % of Vista % of % of Bancorp Total Bancorp Total Pro Forma Total ($000's) Commercial and Industrial $312,846 26.7% $31,153 7.2% $343,999 21.4% Real Estate: Construction & land development 60,952 5.2% 662 0.2% 61,614 3.8% 1-4 family residential 347,616 29.6% 118,402 27.5% 466,018 29.1% Commercial mortgages 177,222 15.1% 147,127 34.1% 324,349 20.2% Other 730 0.1% 2,062 0.5% 2,792 0.2% Consumer 273,966 23.3% 131,410 30.5% 405,376 25.3% ---------- ---------- ---------- Total Loans $1,173,332 $430,816 $1,604,148 ========== ========== ========== ----------------------- - ----------------------------------------------------------------------------------------------------------- - ---------------------------------- Note: Data as of 9/30/01 [UNITED TRUST LOGO] 15 [VISTA BANK LOGO] [GRAPHIC OMITTED] ---------------------------------------------------- \ Strong, Low-Cost Deposit Base -------------------------------------------------- - ------------------------------------------------------------------------------------------------------------ ----------------------- United National % of Vista % of % of Bancorp Total Bancorp Total Pro Forma Total ($000's) Non-Interest Bearing Deposits $251,222 17.5% $25,786 4.4% $277,008 13.7% Money Market & Savings 545,205 38.0% 296,543 50.5% 841,748 41.6% Time Deposits ($100,000 and Over) 195,951 13.7% 51,996 8.9% 247,947 12.3% Other Time Deposits 442,349 30.8% 212,706 36.2% 655,055 32.4% ---------- ---------- ---------- Total Deposits $1,434,727 $587,031 $2,021,758 ========== ========== ========== ----------------------- - ------------------------------------------------------------------------------------------------------------ - ---------------------------------- Note: Data as of 9/30/01 [UNITED TRUST LOGO] 16 [VISTA BANK LOGO] [GRAPHIC OMITTED] Financial Impact [GRAPHIC OMITTED] ---------------------------------------------------- \ Pro Forma Impact Based on Earnings Estimates -------------------------------------------------- - -------------------------------------------------------------------------------- 2002 2003 -------- -------- ($ in Millions except per share amounts) UNBJ Net Income $27.7 $29.9 Vista Net Income 8.8 9.6 -------- -------- Combined Earnings $36.5 $39.5 Cost Savings (after-tax) 3.3 3.8 Net Cost of Financing (1.8) (1.8) New CDI Intangible Amortization (1.4) (1.4) Amort. of Write-up in AFS Securities (0.4) (0.4) -------- -------- Pro Forma Earnings $36.2 $39.7 ======== ======== - -------------------------------------------------------------------------------- Pro Forma Cash Earnings $38.9 $42.4 Pro Forma GAAP Earnings $36.2 $39.7 - -------------------------------------------------------------------------------- Average Diluted Shares Outstanding 19.9 19.9 Pro Forma GAAP EPS $1.82 $2.00 - -------------------------------------------------------------------------------- Cash EPS Accretion/(Dilution) 2.4% 3.9% GAAP EPS Accretion/(Dilution) 0.0% 1.5% - -------------------------------------------------------------------------------- - -------------------------------------------------------------------------------- * Includes estimated merger related charge. [UNITED TRUST LOGO] 18 [VISTA BANK LOGO] [GRAPHIC OMITTED] ---------------------------------------------------- \ Strong Pro Forma Financial Position -------------------------------------------------- - -------------------------------------------------------------------------------- --------------- At Sept. 30, 2001 (000's) ---------------------------- Pro Forma Balance Sheet Items: UNBJ Vista at Close (a) ------------ ------------ ------------ Assets $1,943,624 $698,772 $2,740,588 Loans 1,173,332 430,816 1,604,148 Intangible Assets 5,590 344 111,550 Deposits 1,434,727 587,031 2,021,758 Equity 160,531 59,662 281,868 Loan Loss Reserve 12,325 6,437 20,762 Capital Securities 20,000 0 50,000 Capital Ratios: Equity/Assets 8.26% 8.54% 10.28% Tang. Equity/Assets 7.99% 8.49% 6.48% Asset quality Ratios (b) NPAs/Loans + OREO 0.45% 0.77% 0.53% Loan Loss Reserve/NPL's 242.67% 239.12% 267.17% Loan Loss Reserve/Loans 1.05% 1.49% 1.29% --------------- - -------------------------------------------------------------------------------- (a) Balance sheet data as of September 30, 2001 as adjusted to include the impact of one-time charges and other purchase accounting adjustments including the stock consideration issued to Vista. Equity is estimated as of March 31, 2002. [UNITED TRUST LOGO] 19 [VISTA BANK LOGO] [GRAPHIC OMITTED] Summary [GRAPHIC OMITTED] ---------------------------------------------------- \ Summary -------------------------------------------------- > Creation of a stronger competitor in familiar markets > Excellent entry opportunity into Eastern Pennsylvania markets > Immediately accretive to both new GAAP and cash EPS > Similar cultures and community banking operating models > Complementary business lines > Effective use of capital > Low execution risk [UNITED TRUST LOGO] 21 [VISTA BANK LOGO] [GRAPHIC OMITTED] ---------------------------------------------------- \ Estimated Annual Cost Savings -------------------------------------------------- - -------------------------------------------------------------------------------- ($000's) Personnel Expense $4,500 Net Occupancy Expense $750 Other Non-Interest Expense $1,150 --------- Total Non-Interest Expense $6,400 ========= - -------------------------------------------------------------------------------- [UNITED TRUST LOGO] 22 [VISTA BANK LOGO] [GRAPHIC OMITTED] ---------------------------------------------------- \ Transaction Expenses -------------------------------------------------- - -------------------------------------------------------------------------------- ($000's) Severance $3,200 Professional Fees $2,250 Facilities Closing Costs $1,150 Equipment Lease $1,000 Additional Loan Loss Provision $1,183 Other $300 --------- Total One-time After-tax Expenses $9,083 ========= - -------------------------------------------------------------------------------- [UNITED TRUST LOGO] 23 [VISTA BANK LOGO]