MAINSOURCE FINANCIAL GROUP, INC.
CONSOLIDATED BALANCE SHEETS
(Dollar amounts in thousands except per share data)

Item 1. Financial Statements

	(Unaudited)
	September 30,			December 31,
	2007			2006
Assets
Cash and due from banks	$	70,280		$	90,546
Money market and federal funds sold	3,695			13,609
Cash and cash equivalents	73,975			104,155
Interest bearing time deposits	116			116
Investment securities available for sale	502,900			485,259
Loans held for sale	1,076			2,162
Loans, net of allowance for loan losses of $13,169 and $12,792	1,652,492			1,561,592
Restricted stock, at cost	22,947			22,947
Premises and equipment, net	39,805			40,370
Goodwill	122,046			120,609
Purchased intangible assets	13,945			15,944
Cash surrender value of life insurance	40,999			39,885
Interest receivable and other assets	43,629			36,734
Total assets	$	2,513,930		$	2,429,773

Liabilities
Deposits
Noninterest bearing	$	196,570		$	193,513
Interest bearing	1,644,641			1,666,176
Total deposits	1,841,211			1,859,689
Short-term borrowings and note payable	76,577			42,306
Federal Home Loan Bank (FHLB) advances	270,700			208,443
Subordinated debentures	41,239			41,239
Other liabilities	25,356			24,849
Total liabilities	2,255,083			2,176,526

Shareholders’ equity
Preferred stock, no par value Authorized shares - 400,000 Issued and outstanding shares - none	—			—
Common stock $.50 stated value: Authorized shares - 25,000,000 Issued shares — 19,151,759 and 18,240,772 Outstanding shares — 18,636,429 and 17,859,603	9,610			9,139
Common stock to be distributed for stock dividend, 0 and 912,038 shares	—			456
Treasury stock — 515,330 and 381,169 shares, at cost	(8,446		)	(6,586		)
Additional paid-in capital	196,685			196,788
Retained earnings	63,757			54,914
Accumulated other comprehensive loss	(2,759		)	(1,464		)
Total shareholders’ equity	258,847			253,247
Total liabilities and shareholders’ equity	$	2,513,930		$	2,429,773

The accompanying notes are an integral part of these consolidated financial statements.

MAINSOURCE FINANCIAL GROUP, INC.
CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME
(Dollar amounts in thousands except per share data)

	(Unaudited)
	Three months ended September 30,					Nine months ended September 30,
	2007		2006			2007		2006
Interest income
Loans, including fees	$	30,550	$	28,321		$	89,063	$	68,207
Investment securities	6,147		5,950			18,304		17,095
Other interest income	86		160			577		366
Total interest income	36,783		34,431			107,944		85,668
Interest expense
Deposits	13,904		11,054			39,847		26,985
FHLB advances	2,975		3,252			8,001		6,058
Subordinated debentures	842		633			2,494		1,702
Other borrowings	816		667			1,999		1,456
Total interest expense	18,537		15,606			52,341		36,201
Net interest income	18,246		18,825			55,603		49,467
Provision for loan losses	1,184		570			2,779		1,293
Net interest income after provision for loan losses	17,062		18,255			52,824		48,174
Non-interest income
Insurance commissions	474		455			1,405		1,396
Mortgage banking	761		577			2,125		1,721
Trust and investment product fees	472		312			1,287		901
Service charges on deposit accounts	3,606		2,732			9,682		6,886
Net realized gains (losses) on securities	—		(10		)	229		51
Increase in cash surrender value of life insurance	368		361			1,091		895
Interchange income	783		747			2,370		1,883
Other income	1,071		1,268			2,904		3,503
Total non-interest income	7,535		6,442			21,093		17,236
Non-interest expense
Salaries and employee benefits	9,621		9,173			28,785		24,887
Net occupancy expenses	1,308		1,258			4,046		3,480
Equipment expenses	1,399		1,369			4,382		3,748
Intangibles amortization	666		664			1,999		1,554
Telecommunications	452		528			1,464		1,415
Stationery printing and supplies	382		468			1,144		992
Other expenses	3,465		3,246			9,440		7,633
Total non-interest expense	17,293		16,706			51,260		43,709
Income before income tax	7,304		7,991			22,657		21,701
Income tax expense	1,701		2,057			5,636		5,499
Net income	$	5,603	$	5,934		$	17,021	$	16,202

Comprehensive income	$	10,371	$	12,572		$	15,726	$	16,479

Cash dividends declared per share	$	0.140	$	0.133		$	0.415	$	0.395

Net income per share - basic and diluted	$	0.30	$	0.31		$	0.91	$	0.97

The accompanying notes are an integral part of these consolidated financial statements.

MAINSOURCE FINANCIAL GROUP, INC.
CONSOLIDATED STATEMENTS OF CASH FLOW
(Dollar amounts in thousands)

	(Unaudited)
	Nine months ended September 30,
	2007			2006
Operating Activities
Net income	$	17,021		$	16,202
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	2,779			1,293
Depreciation and amortization	3,164			2,809
Securities amortization, net	(553		)	(345		)
Stock based compensation expense	93			53
Amortization of core deposit intangibles	1,999			1,554
Increase in cash surrender value of life insurance policies	(1,091		)	(895		)
Investment securities (gains)/losses	(229		)	(51		)
Change in loans held for sale	1,086			1,656
Change in other assets and liabilities	(5,667		)	(8,234		)
Net cash provided by operating activities	18,602			14,042

Investing Activities
Net change in short-term investments	—			(824		)
Purchases of securities available for sale	(91,298		)	(77,642		)
Proceeds from maturities and payments on securities available for sale	36,825			51,095
Proceeds from sales of securities available for sale	35,613			25,926
Loan originations and payments, net	(94,134		)	(19,685		)
Purchases of premises and equipment	(4,030		)	(2,510		)
Proceeds from sale of restricted stock	—			1,719
Cash paid for bank acquisitions, net	—			(1,864		)
Net cash used by investing activities	(117,024		)	(23,785		)

Financing Activities
Net change in deposits	(18,478		)	(64,449		)
Net change in short-term borrowings	34,271			19,485
Proceeds from FHLB advances	150,000			189,500
Repayment of FHLB advances	(87,743		)	(150,329		)
Purchase of treasury shares	(2,366		)	(490		)
Cash dividends and fractional stock dividends	(7,790		)	(6,438		)
Proceeds from exercise of stock options	348			96
Net cash provided (used) by financing activities	68,242			(12,625		)
Net change in cash and cash equivalents	(30,180		)	(22,368		)
Cash and cash equivalents, beginning of year	104,155			86,205
Cash and cash equivalents, end of year	$	73,975		$	63,837

The accompanying notes are an integral part of these consolidated financial statements.

NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS

(Dollar amounts in thousands except per share data)

NOTE 1 - BASIS OF PRESENTATION

The significant accounting policies followed by MainSource Financial Group, Inc. (“Company”) for interim financial reporting are consistent with the accounting policies followed for annual financial reporting. The consolidated interim financial statements have been prepared according to accounting principles generally accepted in the United States of America and in accordance with the instructions for Form 10-Q. The interim statements do not include all information and footnotes normally included in the annual financial statements. All adjustments which are, in the opinion of management, necessary for a fair presentation of the results for the periods reported have been included in the accompanying unaudited consolidated financial statements and all such adjustments are of a normal recurring nature. Some items in prior period financial statements were reclassified to conform to current presentation. It is suggested that these consolidated financial statements and notes be read in conjunction with the financial statements and notes thereto in the MainSource Financial Group, Inc. December 31, 2006 Annual Report on Form 10-K.

Recently Issued Accounting Standards:

The Company adopted FASB Interpretation No. 48, Accounting for Uncertainty in Income Taxes (“FIN 48”), on January 1, 2007 and recognized a cumulative effect adjustment of $411 as a reduction to the balance of retained earnings and an increase in liabilities of $411. The amount of unrecognized tax benefits as of January 1, 2007 and September 30, 2007 totaled $911 and $1,088, respectively, all of which would increase income from continuing operations, and thus impact the Company’s effective tax rate, if ultimately recognized into income. Unrecognized state income tax benefits are reported net of their related deferred federal income tax benefit.

It is the Company’s policy to recognize interest and penalties accrued relative to unrecognized tax benefits in their respective federal or state income tax expense accounts. As of January 1, 2007, $75 in interest and penalties had been accrued.

The Company and its corporate subsidiaries file a consolidated U.S. federal income tax return and combined Indiana and Illinois income tax returns. These returns are subject to examination by taxing authorities for all years after 2002. We are currently under audit by the Indiana Department of Revenue for the 2003, 2004 and 2005 tax years. The anticipated effect on unrecognized tax benefits resulting from this audit is not expected to have a material impact on the financial statements.

Additionally, the Company anticipates that the statute of limitations will close during 2007 on a tax position taken in the 2003 federal income tax return. Should this statute close on the position taken in the return, the Company will recognize previously unrecognized tax benefits, estimated at $47, which will reduce income tax expense.

In September 2006, the FASB Emerging Issues Task Force finalized Issue No. 06-5, Accounting for Purchases of Life Insurance — Determining the Amount That Could Be Realized in Accordance with FASB Technical Bulletin No. 85-4 (Accounting for Purchases of Life Insurance). This Issue requires that a policyholder consider contractual terms of a life insurance policy in determining the amount that could be realized under the insurance contract. It also requires that if the contract provides for a greater surrender value if all individual policies in a group are surrendered at the same time, that the surrender value be determined based on the assumption that policies will be surrendered on an individual basis. Lastly, the Issue discusses whether the cash surrender value should be discounted when the policyholder is contractually limited in its ability to surrender a policy. EITF 06-5 became effective for the Company on January 1, 2007 and had no impact on the financial statements.

In September 2006, the FASB issued Statement No. 157, Fair Value Measurements. This Statement defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements. This Statement establishes a fair value hierarchy about the assumptions used to measure fair value and clarifies assumptions about risk and the effect of a restriction on the sale or use of an asset. The standard is effective for fiscal years beginning after November 15, 2007. The Company has not completed its evaluation of the impact of the adoption of this standard.

In September 2006, the FASB Emerging Issues Task Force finalized Issue No. 06-4, Accounting for Deferred Compensation and Postretirement Benefit Aspects of Endorsement Split-Dollar Life Insurance Arrangements. This issue requires that a liability be recorded during the service period when a split-dollar life insurance agreement continues after participants’ employment or retirement. The required accrued liability will be based on either the post-employment benefit cost for the continuing life insurance or based on the future death benefit depending on the contractual terms of the underlying

agreement. This issue is effective for fiscal years beginning after December 15, 2007. The Company has determined that the adoption of this EITF will not have a material effect on the financial statements.

In February 2007, the FASB issued Statement No. 159 — The Fair Value Option for Financial Assets and Financial Liabilities. The standard provides companies with an option to report selected financial assets and liabilities at fair value and establishes presentation and disclosure requirements designed to facilitate comparisons between companies that choose different measurement attributes for similar types of assets and liabilities. The new standard is effective for the Company on January 1, 2008. The Company does not expect the adoption of SFAS No. 159 to have a material impact on the financial statements.

NOTE 2 - STOCK PLANS AND STOCK BASED COMPENSATION

Options to buy stock were granted to directors and officers of the Company under the Company’s 2003 Stock Option Plan, which provides for the issuance of options to purchase up to 607,754 shares of common stock of the Company. At September 30, 2007, options to purchase 275,837 shares of common stock were outstanding pursuant to the 2003 Plan. Effective upon the shareholders approval of the 2007 Stock Incentive Plan (discussed below), the 2003 Plan was frozen and no further options will be granted pursuant to the 2003 Plan. All stock options have an exercise price that is at least equal to the fair market value of the Company’s stock on the date the options were granted. The maximum option term is ten years, and options vest immediately for the directors’ grant and over four years for the officers’ grant. It is the Company’s intent that shares issued under the 2003 Plan will come from treasury shares.

Effective January 1, 2006, the Company adopted Statement of Financial Accounting Standards (“SFAS”) No. 123R, “Share Based Payment.” The Company elected to utilize the modified prospective transition method, therefore, prior period results were not restated. Prior to the adoption of SFAS 123R, stock-based compensation expense related to stock options was not recognized in the results of operations if the exercise price was at least equal to the market value of the common stock on the grant date, in accordance with Accounting Principles Board Opinion No. 25, “Accounting for Stock Issued to Employees.”

SFAS 123R requires all share-based payments to employees, including grants of employee stock options, to be recognized as compensation expense over the service period (generally the vesting period) in the consolidated financial statements based on their fair values. For options with graded vesting, we value the stock option grants and recognize compensation expense as if each vesting portion of the award was a single award. Under the modified prospective method, unvested awards, and awards that were granted, modified, or settled on or after January 1, 2006 are measured and accounted for in accordance with SFAS 123R.

The following table summarizes stock option activity:

	Nine Months Ended September 30, 2007
	Shares		Weighted Average Exercise Price
Outstanding, beginning of year	263,345		$	17.93
Granted	75,055		17.01
Exercised	(30,863	)	11.29
Forfeited or expired	(31,700	)	21.01
Outstanding, end of period	275,837		$	18.07
Options exercisable at period end	177,240		$	18.47

The following table details stock options outstanding:

	September 30, 2007		December 31, 2006
Stock options vested and currently exercisable:
Number	177,240		228,806
Weighted average exercise price	$	18.47	$	17.92
Aggregate intrinsic value	$	216	$	352
Weighted average remaining life (in years)	6.7		6.5

			Gross			Gross
	Fair		Unrealized			Unrealized
	Value		Gains			Losses
As of September 30, 2007
Available for Sale
Federal agencies	$	81,567	$		339	$		(149	)
State and municipal	124,078		844			(1,148			)
Mortgage-backed securities	289,747		352			(4,684			)
Equity and other securities	7,508		154			—
Total available for sale	$	502,900	$	1,689		$		(5,981	)

As of December 31, 2006
Available for Sale
Federal agencies	$	90,285	$	104		$		(481	)
State and municipal	122,343		1,752			(436			)
Mortgage-backed securities	263,006		716			(4,127			)
Equity and other securities	9,625		181			—
Total available for sale	$	485,259	$	2,753		$	(5,044		)

Unrealized losses on available for sale securities have not been recognized into income because management has the intent and ability to hold these securities for the foreseeable future and the decline in fair value is largely due to increases in market interest rates. The fair value is expected to recover as the securities approach their maturity dates.

NOTE 4 - LOANS AND ALLOWANCE

	September 30, 2007			December 31, 2006

Commercial and industrial loans	$	217,003		$		173,557
Agricultural production financing	30,538			25,588
Farm real estate	42,538			46,051
Commercial real estate	322,059			286,603
Hotel	40,040			42,681
Residential real estate	777,134			790,962
Construction and development	103,401			79,261
Consumer	132,948			129,681
Total loans	1,665,661			1,574,384
Allowance for loan losses	(13,169		)	(12,792			)
Net loans	$	1,652,492		$	1,561,592

	September 30,
	2007			2006
Allowance for loan losses
Balances, January 1	$	12,792		$	10,441
Addition resulting from acquisition	—			4,447
Adjustments to prior acquisition	—			(110		)
Provision for losses	2,779			1,293
Recoveries on loans	716			393
Loans charged off	(3,118		)	(2,609		)
Balances, September 30	$	13,169		$	13,855

The Company has purchased loans for which there was, at acquisition, evidence of deterioration of credit quality since origination, and it was probable, at acquisition, that all contractually required payments would not be collected. The outstanding balance and carrying amount of those loans is as follows:

	Sept 30, 2007		Dec. 31, 2006
Commercial real estate	$	7,167	$	7,747
Construction and development	—		1,452
Residential real estate	358		527
Consumer	252		269
Outstanding balance	$	7,777	$	9,995
Carrying amount, net of allowance of $289 and $0	$	6,439	$	8,907

For those purchased loans disclosed above, the Company increased the allowance for loan losses by $289 during the first nine months of 2007 and $0 during the first nine months of 2006.

NOTE 5 - DEPOSITS

	September 30, 2007		December 31, 2006

Noninterest-bearing demand	$	196,570	$	193,513
Interest-bearing demand	450,849		466,212
Savings	330,920		335,405
Certificates of deposit of $100 or more	293,163		285,262
Other certificates and time deposits	569,709		579,297
Total deposits	$	1,841,211	$	1,859,689

NOTE 6 - EARNINGS PER SHARE

Earnings per share (EPS) were computed as follows:

	September 30, 2007					September 30, 2006
			Weighted	Per				Weighted	Per
	Net		Average	Share		Net		Average	Share
For the three months ended	Income		Shares	Amount		Income		Shares	Amount
Basic earnings per share:
Income available to common shareholders	$	5,603	18,679,378	$	0.30	$	5,934	18,846,078	$	0.31
Effect of dilutive shares			8,981					22,888
Diluted earnings per share	$	5,603	18,688,359	$	0.30	$	5,934	18,868,966	$	0.31

	September 30, 2007					September 30, 2006
			Weighted	Per				Weighted	Per
	Net		Average	Share		Net		Average	Share
For the nine months ended	Income		Shares	Amount		Income		Shares	Amount
Basic earnings per share:
Income available to common shareholders	$	17,021	18,722,433	$	0.91	$	16,202	16,619,947	$	0.97
Effect of dilutive shares			9,347					18,394
Diluted earnings per share	$	17,021	18,731,780	$	0.91	$	16,202	16,638,341	$	0.97

Stock options for 225,350 and 197,040 shares of common stock were not considered in computing diluted earnings per share for the quarter and year-to-date 2007 and 2006 because they were antidilutive.

MAINSOURCE FINANCIAL GROUP, INC.
FORM 10-Q

Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations
(Dollar amounts in thousands except per share data)

Overview

MainSource Financial Group, Inc. (“Company”) is a multi-bank, financial holding company that provides an array of financial services and is headquartered in Greensburg, Indiana. The Company’s shares trade on the NASDAQ Global Select Market under the symbol MSFG. On September 30, 2007, the Company controlled three bank subsidiaries, MainSource Bank, MainSource Bank of Illinois, and MainSource Bank - Ohio. In addition to the banking subsidiaries, the Company owned the following subsidiaries: MainSource Insurance, LLC, MainSource Statutory Trust I, MainSource Statutory Trust II, MainSource Statutory Trust III, MainSource Statutory Trust IV, MSB Investments of Nevada, Inc., and MainSource Title, LLC. As required by current accounting guidance, the trusts are no longer consolidated with the Company. Accordingly, the Company does not report the securities issued by the trusts as liabilities, and instead reports as liabilities the subordinated debentures issued by the Company.

Forward-Looking Statements

Except for historical information contained herein, the following discussion and analysis includes certain statements which constitute “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These forward-looking statements involve risks and uncertainties, including anticipated financial performance, business prospects and other similar matters, which reflect management’s best judgment based on factors currently known. Actual results and experience could differ materially from the anticipated results or other expectations expressed in the Company’s forward-looking statements. Factors which might cause such a difference include, but are not limited to, general economic conditions, monetary and fiscal policies of the federal government, demand for loan products, and other factors discussed in our Annual Report on 10K for the year ended December 31, 2006, under ITEM 1A “Risk Factors”, and our other filings with the Securities and Exchange Commission. The Company does not undertake, and specifically disclaims, any obligation to update any forward-looking statements to reflect the occurrence of events or circumstances after the date of such statements.

Results of Operations

Net income for the third quarter of 2007 was $5,603 compared to $5,934 for the third quarter of 2006. The decrease in net income was primarily attributable to an increase in the Company’s cost of funds and an increase in the provision for loan losses. Diluted earnings per share for the third quarter totaled $0.30 in 2007, a slight decrease from the $0.31 reported in the same period a year ago. During the third quarter, the Company incurred approximately $600 of pre-tax expenses primarily related to the data processing system conversion of its Crawfordsville, Indiana affiliate. Excluding these expenses, earnings per share would have been $0.32 for the quarter. Key measures of the financial performance of the Company are return on average shareholders’ equity and return on average assets. Return on average shareholders’ equity was 8.77% for the third quarter of 2007 while return on average assets was .91% for the same period, compared to 9.67% and 1.00% in the third quarter of 2006. Return on equity and earnings per share have been impacted by shares issued in connection with the acquisitions completed in the first half of 2006.

For the nine months ended September 30, 2007, net income was $17,021 compared to $16,202 for the same period a year ago. Earnings per share decreased to $0.91 in 2007 from $0.97 in 2006. Return on average shareholders’ equity was 8.88% for the first nine months of 2007 while return on average assets was .94% for the same period, compared to 10.73% and 1.08% in the first nine months of 2006.

Net Interest Income

The volume and yield of earning assets and interest-bearing liabilities influence net interest income. Net interest income reflects the mix of interest-bearing and non-interest-bearing liabilities that fund earning assets, as well as interest spreads between the rates earned on these assets and the rates paid on interest-bearing liabilities. Third quarter net interest income of $18,246 in 2007 was a decrease of $579 compared to the third quarter of 2006. Average earning assets increased 4.2% while net interest margin, on a fully-taxable equivalent basis, decreased to 3.48% for the third quarter of 2007 compared to 3.74% for the same period a year ago. The full year’s effect of the acquisitions of the three thrift institutions in the first and second quarters of 2006 and their corresponding lower net interest margins were the primary cause for the decrease in the

an increase in the unrealized loss on the Company’s investment securities portfolio. The increase in unrealized loss on the portfolio was due to the rise in market investment rates from year-end.

Loans, Credit Risk and the Allowance and Provision for Probable Loan Losses

Loans remain the Company’s largest concentration of assets and, by their nature, carry a higher degree of risk. The loan underwriting standards observed by the Company’s subsidiaries are viewed by management as a means of controlling problem loans and the resulting charge-offs. The Company believes credit risks may be elevated if undue concentrations of loans in specific industry segments and to out-of-area borrowers are incurred. Accordingly, the Company’s Board of Directors regularly monitors such concentrations to determine compliance with its loan allocation policy. The Company believes it has no undue concentrations of loans.

Residential real estate loans continue to represent a significant portion of the total loan portfolio. Such loans represented 46.7% of total loans at September 30, 2007 and 50.2% at December 31, 2006. The Company anticipates this category of loans to decrease as a large portion of future residential real estate loan originations will be sold to the secondary market. On September 30, 2007, the Company had $1,076 of residential real estate loans held for sale, which was a decrease from the year-end balance of $2,162. The Company generally retains the servicing rights on mortgages sold.

Non-performing loans totaled $17,575, or 1.06% of total loans, as of September 30, 2007, compared to $16,938, or 1.07% of total loans, as of September 30, 2006, and $17,481, or 1.11% of loans at December 31, 2006. The allowance for loan losses was $13,169 as of September 30, 2007 and represented 0.79% of total outstanding loans compared to $12,792 as of December 31, 2006 or .81% of total outstanding loans. Because of the acquisition of the three thrift institutions in the first six months of 2006 and their large residential real estate loan portfolios, the percentage of loan loss to total outstanding loans is lower than the Company’s historical amounts.

The provision for loan losses was $1,184 in the third quarter of 2007 compared to $570 for the same period in 2006 and $899 for the second quarter of 2007. The provision increased on a linked quarter basis as a result of the overall growth in commercial loans and an increase in the specific allocations for certain non-performing and watch list loans. Net loan losses were $1,127 for the third quarter of 2007 compared to $1,114 for the same period a year ago. For the nine months ended September 30, 2007, net loan losses were $2,402, or 0.20% of average loans outstanding, compared to $2,216 of net loan losses for the nine months ended September 30, 2006, which represented 0.23% of average loans outstanding for that period. The adequacy of the allowance for loan losses in each subsidiary is reviewed at least quarterly. The determination of the provision amount in any period is based on management’s continuing review and evaluation of loan loss experience, changes in the composition of the loan portfolio, current economic conditions, the amount of loans presently outstanding, and information about specific borrower situations. The allowance for loan losses as of September 30, 2007 was considered adequate by management.

Investment Securities

Investment securities offer flexibility in the Company’s management of interest rate risk and are an important source of liquidity as a response to changing characteristics of assets and liabilities. The Company’s investment policy prohibits trading activities and does not allow investment in high-risk derivative products, junk bonds or foreign investments.

As of September 30, 2007, the Company had $502,900 of investment securities. All of these securities were classified as “available for sale” (“AFS”) and were carried at fair value with unrealized gains and losses, net of taxes, reported as a separate component of shareholders’ equity. An unrealized pre-tax loss of $4,292 was recorded to adjust the AFS portfolio to current market value at September 30, 2007, compared to an unrealized pre-tax loss of $2,291 at December 31, 2006. Unrealized losses on AFS securities have not been recognized into income because management has the intent and ability to hold these securities for the foreseeable future and the decline in fair value is largely due to increases in market interest rates. The fair value is expected to recover as the securities approach their maturity dates.

Sources of Funds

The Company relies primarily on customer deposits, securities sold under agreements to repurchase and shareholders’ equity to fund earning assets. FHLB advances are also used to provide additional funding.

Deposits generated within local markets provide the major source of funding for earning assets. Average total deposits funded 85.4% and 86.7% of total average earning assets for the nine-month periods ending

September 30, 2007 and 2006. Total interest-bearing deposits averaged 89.6% and 89.1% of average total deposits for the nine-month periods ending September 30, 2007 and 2006, respectively. Management constantly strives to increase the percentage of transaction-related deposits to total deposits due to the positive effect on earnings.

The Company had FHLB advances of $270,700 outstanding at September 30, 2007. These advances have interest rates ranging from 2.36% to 6.50%. Approximately $65,000 of these advances were obtained for short-term liquidity needs and had original maturities of six months or less. The remaining advances were originally long-term advances with approximately $8,000 maturing in 2007, $29,000 maturing in 2008, $10,000 maturing in 2009, $73,000 maturing in 2010, $20,000 maturing in 2011, and $66,000 maturing in 2012 and beyond.

Capital Resources

Total shareholders’ equity was $258,847 at September 30, 2007, which was a slight increase of $5,600 compared to the $253,247 of shareholders’ equity at December 31, 2006. The increase in retained earnings more than offset the change in accumulated other comprehensive loss related to the investment securities.

The Federal Reserve Board and other regulatory agencies have adopted risk-based capital guidelines that assign risk weightings to assets and off-balance sheet items. The Company’s core capital consists of shareholders’ equity, excluding accumulated other comprehensive income/loss, while Tier 1 capital consists of core capital less goodwill and intangibles. Trust preferred securities qualify as Tier 1 capital or core capital with respect to the Company under the risk-based capital guidelines established by the Federal Reserve. Under such guidelines, capital received from the proceeds of the sale of trust preferred securities cannot constitute more than 25% of the total core capital of the Company. Consequently, the amount of trust preferred securities in excess of the 25% limitation constitutes Tier 2 capital of the Company. Total regulatory capital consists of Tier 1, certain debt instruments and a portion of the allowance for loan losses. At September 30, 2007, Tier 1 capital to total average assets was 7.0%. Tier 1 capital to risk-adjusted assets was 10.1%. Total capital to risk-adjusted assets was 10.9%. All three ratios exceed all required ratios established for bank holding companies. Risk-adjusted capital levels of the Company’s subsidiary banks exceed regulatory definitions of well-capitalized institutions.

The Company declared and paid common dividends of $0.140 per share in the third quarter of 2007 versus $0.133 for the third quarter of 2006. For the nine months of 2007, the Company declared and paid common dividends of $0.415 per share compared to $0.395 for the first nine months of 2006.

Liquidity

Liquidity management involves maintaining sufficient cash levels to fund operations and to meet the requirements of borrowers, depositors, and creditors. Higher levels of liquidity bear higher corresponding costs, measured in terms of lower yields on short-term, more liquid earning assets, and higher interest expense involved in extending liability maturities. Liquid assets include cash and cash equivalents, loans and securities maturing within one year, and money market instruments. In addition, the Company holds AFS securities maturing after one year, which can be sold to meet liquidity needs.

Maintaining a relatively stable funding base, which is achieved by diversifying funding sources and extending the contractual maturity of liabilities, supports liquidity and limits reliance on volatile short-term purchased funds. Short-term funding needs arise from declines in deposits or other funding sources, funding of loan commitments and requests for new loans. The Company’s strategy is to fund assets to the maximum extent possible with core deposits that provide a sizable source of relatively stable and low-cost funds.

Management believes the Company has sufficient liquidity to meet all reasonable borrower, depositor, and creditor needs in the present economic environment. In addition, the Company has a $30 million line of credit available for borrowing purposes and the Company’s affiliates have access to the Federal Home Loan Bank.

Interest Rate Risk

Asset/liability management strategies are developed by the Company to manage market risk. Market risk is the risk of loss in financial instruments including investments, loans, deposits and borrowings arising from adverse changes in prices/rates. Interest rate risk is the Company’s primary market risk exposure, and represents the sensitivity of earnings to changes in market interest rates.

Effective asset/liability management requires the maintenance of a proper ratio between maturing or repriceable interest-earning assets and interest-bearing liabilities. It is the policy of the Company that the cumulative gap divided by total assets must be not greater than plus or minus 20% at the 3-month, 6-month, and 1-year time horizons.

Off-Balance Sheet Arrangements

In the normal course of business we are involved with some off-balance sheet arrangements that have or are reasonably likely to have an effect on our financial condition, liquidity or capital. These arrangements at September 30, 2007, are presented in the following table:

	September 30, 2007

Commitments to extend credit
Revolving home equity lines	$	112,457
Construction loans	119,061
Other loans	134,180
Standby letters of credit	22,634
Total	$		388,332

The same credit policies are used to make these commitments as are used for on-balance sheet loans, including obtaining collateral at exercise of the commitment. Commitments may expire without being used.

Item 3. Quantitative and Qualitative Disclosures about Market Risk

Market risk of the Company encompasses exposure to both liquidity and interest rate risk and is reviewed monthly by the Asset/Liability Committee and the Board of Directors. See “Liquidity” and “Interest Rate Risk” in Item 2, Management’s Discussion and Analysis of Financial Condition and Results of Operations, for qualitative and quantitive disclosures about market risk, which information is incorporated herein by reference. There have been no material changes in the quantitative and qualitative disclosures about market risks as of September 30, 2007 from the analysis and disclosures provided in the Company’s Annual Report on Form 10-K for the year ended December 31, 2006.

Item 4. Controls and Procedures

As of the end of the quarterly period covered by this report, an evaluation was carried out under the supervision and with the participation of the Company’s management, including the Company’s Chief Executive Officer and Chief Financial Officer, of the effectiveness of the Company’s disclosure controls and procedures (as defined in Rules 13a-15(e) or 15d-15(e) under the Securities Exchange Act of 1934 (“Exchange Act”)). Based on their evaluation, the Company’s Chief Executive Officer and Chief Financial Officer have concluded that the Company’s disclosure controls and procedures were, to the best of their knowledge, effective to ensure that information required to be disclosed by the Company in reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in Securities and Exchange Commission rules and forms as of such date.

There was no change in the Company’s internal control over financial reporting that occurred during the Company’s third fiscal quarter of 2007 that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

PART II. OTHER INFORMATION

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Period	Total Number of Shares (or Units) Purchased	Average Price Paid Per Share (or Unit)	Total Number of Shares (or Units) Purchased as Part of Publicly Announced Plans or Programs	Maximum Number (or Approximate Dollar Value of Shares) (or Units) That May Yet Be Purchased Under the Plans or Programs (1)

July 2007	70,000	$16.20	70,000	405,000

August 2007	—	—	—	405,000

September 2007	25,966	$16.41	25,966	379,034
Total	95,966		95,966	—

(1) On March 22, 2007, the Company announced that its Board of Directors had approved a stock repurchase program effective April 1, 2007, for the purchase of up to 2.5% of its outstanding common shares, or approximately 500,000 shares. The program expires on March 31, 2008, unless completed sooner or otherwise extended.

INDIANA	35-1562245
(State or other jurisdiction of	(IRS Employer
incorporation or organization)	Identification No.)

201 NORTH BROADWAY, GREENSBURG, INDIANA	47240
(Address of principal executive offices)	(Zip Code)

3.1		Restated Articles of Incorporation (incorporated by reference to Exhibit 3.1 to the Annual Report on Form 10-K of the registrant for the fiscal year ended December 31, 2003 filed March 12, 2004 with the Commission (Commission File No. 0-12422)).

3.2		Bylaws of MainSource Financial Group, Inc. dated July 17, 2007 (incorporated by reference to Exhibit 3.1 to the Report on Form 8-K of the registrant filed July 25, 2007 with the Commission (Commission File No. 0-12422)).

31.1		Certification pursuant to Rule 13a-14(a)/15d-14(a) by Chief Executive Officer

31.2		Certification pursuant to Rule 13a-14(a)/15d-14(a) by Chief Financial Officer

32.1		Certification pursuant to Section 1350 by Chief Executive Officer

32.2		Certification pursuant to Section 1350 by Chief Financial Officer

		MAINSOURCE FINANCIAL GROUP, INC.

		November 2, 2007

		/s/ James L. Saner, Sr.
		James L. Saner Sr.
		President and Chief Executive Officer

		November 2, 2007

		/s/ James M. Anderson
		James M. Anderson
		Senior Vice President and Chief Financial Officer

Year
October 2007—December 2007	$	23
2008	91
2009	90
2010	61
2011	29
2012	—