Exhibit 99.1

//FOR IMMEDIATE RELEASE//

Media Contact: Kelli Christman: 816.860.5088

Investor Relations Contact: Abby Wendel: 816.860.1685

UMB Financial Corporation Reports Second Quarter 2014 Earnings of $34.7 million, or $0.76 per Diluted Share

Selected second quarter financial highlights:

KANSAS CITY, Mo. (July 22, 2014) – UMB Financial Corporation (Nasdaq: UMBF), a diversified financial holding company, announced earnings for the three months ended June 30, 2014 of $34.7 million or $0.77 per share ($0.76 diluted). This is an increase of $4.7 million, or 15.8 percent, compared to second quarter 2013 earnings of $29.9 million or $0.75 per share ($0.74 diluted). Earnings for the six months ended June 30, 2014, were $58.1 million or $1.30 per share ($1.28 diluted). This is a decrease of $6.8 million, or 10.5 percent, compared to the prior year-to-date earnings of $64.9 million or $1.62 per share ($1.61 diluted).

“As our second quarter results demonstrate, the strength of our business model relies on diverse revenue sources, high quality credit, a strong balance sheet and low-cost funding,” said Mariner Kemper, Chairman and Chief Executive Officer. “Total company assets under management reached a record high this quarter at $43.7 billion. Compared to the same period a year ago, AUM increased 21.9 percent, and over the past five years increased 34.1 percent on a compound annual growth rate basis. Loan growth continues to be a driving force behind our success with average net loans increasing 12.0 percent during the second quarter of 2014, as compared to the second quarter of 2013. This was our 17^th consecutive quarter of loan growth. Finally, noninterest income increased 18.0 percent, compared to the second quarter 2013, led by revenue growth in our investment management and asset servicing businesses. Diverse revenue, loan growth, total cost of funds at 10 basis points, and excellent credit quality demonstrate that our business model continues to serve us well.”

Net Interest Income and Margin

Net interest income for the second quarter of 2014 increased $3.8 million, or 4.7 percent, compared to the same period in 2013. Average earning assets increased by $749.3 million, or 5.4 percent, compared to the second quarter of 2013. This increase was due to a $739.0 million, or 12.0 percent, increase in average loans. Net interest margin decreased three basis points to 2.53 percent for the three months ended June 30, 2014, compared to the same quarter in 2013.

Noninterest Income and Expense

Noninterest income increased $20.4 million, or 18.0 percent, for the three months ended June 30, 2014, compared to the same period in 2013. This increase is attributable to increased trust and securities processing income of $9.9 million, or 15.6 percent, for the three months ended June 30, 2014, compared to the same period in 2013. The increase in trust and securities processing income was primarily due to a $3.7 million, or 18.9 percent, increase in fees related to institutional and personal investment management services, a $3.1 million, or 16.3 percent, increase in fund administration and custody services, and a $2.2 million, or 10.0 percent increase, in advisory fee income from the Scout Funds. Equity earnings on alternative investments increased $3.5 million due to unrealized gains on Prairie Capital Management (“PCM”) equity method investments for the three months ended June 30, 2014, compared to the same period in 2013. Other noninterest income increased $4.5 million primarily driven by a gain on the sale of a branch property of $2.8 million and increased fair value adjustments on interest rate swap transactions of $0.8 million compared to the same period in 2013.

Noninterest expense increased $16.2 million, or 10.8 percent, for the three months ended June 30, 2014, compared to the same period in 2013. This increase is driven by higher salary and benefits expense of $6.0 million, or 7.1 percent, an increase in the contingency reserve of $5.3 million, an increase in equipment expense of $1.0 million, and an increase in other noninterest expense of $2.1 million. The increase in salary and benefits is due to increases in salaries and wages of $2.5 million, or 4.7 percent, a $1.2 million, or 6.7 percent, increase in commissions and bonuses, and a $2.3 million, or 17.4 percent, increase in employee benefits expense. The increase of $2.1 million in other noninterest expense is due to a $0.8 million increase in fair value adjustments on contingent consideration liabilities and a $0.6 million increase in fair value adjustments on interest rate swap transactions. On June 30, 2014, the Company entered into a settlement agreement to resolve objections to its calculation of the earn-out amount owed to the sellers of PCM and a related incentive bonus calculation for the employees of PCM. As of June 30, 2014, an additional $5.3 million of contingency reserve expense was recorded during the second quarter of 2014 for a total estimated settlement liability of $20.3 million.

“Our fee-based businesses continue to perform well, resulting in noninterest income at 60.9 percent of our total revenue,” said Peter deSilva, President and Chief Operating Officer. “Trust and securities processing revenue increased 15.6 percent to $73.4 million compared to the second quarter 2013. Scout Investments – our institutional investment management segment – delivered nearly half of the increase with 16.6 percent growth in noninterest income year-over-year. Revenue from our asset servicing business increased 17.7 percent compared to the second quarter 2013. Assets under management within the bank are now more than $11 billion – also a record – and asset management-related revenue within the bank increased 14.2 percent. Within our payment solutions segment, healthcare deposits increased 36.4 percent compared to the prior year and healthcare and flexible spending accounts increased more than 45 percent year-over-year to 4.6 million total accounts.”

Balance Sheet

Average total assets for the three months ended June 30, 2014, were $15.6 billion compared to $14.9 billion for the same period in 2013, an increase of $0.7 billion, or 5.0 percent. Average earning assets increased by $0.7 billion for the period, or 5.4 percent.

Average loan balances for the three months ended June 30, 2014, increased $739.0 million, or 12.0 percent, to $6.9 billion compared to the same period in 2013. Actual loan balances on June 30, 2014, were $6.9 billion, an increase of $0.6 billion, or 9.2 percent, compared to June 30, 2013. This increase

was primarily driven by an increase in commercial loans of $207.5 million, or 6.2 percent, a $160.2 million, or 10.2 percent, increase in commercial real estate loans, and a $124.7 million, or 116.4 percent, increase in construction loans. Nonperforming loans increased to $27.2 million on June 30, 2014, from $25.5 million on June 30, 2013. As a percentage of loans, nonperforming loans decreased to 0.39 percent as of June 30, 2014, compared to 0.40 percent on June 30, 2013. Nonperforming loans are defined as nonaccrual loans and restructured loans. The company’s allowance for loan losses totaled $76.8 million, or 1.11 percent of loans, as of June 30, 2014, compared to $71.6 million, or 1.13 percent of loans, as of June 30, 2013.

For the three months ended June 30, 2014, average securities, including trading securities, totaled $7.0 billion. This is a decrease of $180.4 million, or 2.5 percent, from the same period in 2013.

Average total deposits increased $0.7 billion, or 6.0 percent, to $12.3 billion for the three months ended June 30, 2014, compared to the same period in 2013. Average noninterest-bearing demand deposits increased $516.7 million, or 11.2 percent, compared to 2013. Average interest-bearing deposits increased by $183.2 million, or 2.6 percent, in 2014 as compared to 2013. Total deposits as of June 30, 2014, were $12.2 billion, compared to $11.7 billion as of June 30, 2013, a 3.8 percent increase. Also, as of June 30, 2014, noninterest-bearing demand deposits were 44.4 percent of total deposits.

As of June 30, 2014, UMB had total shareholders’ equity of $1.6 billion, an increase of 30.6 percent as compared to the same period in 2013. This increase is primarily attributable to the common stock issuance the company completed in September 2013.

“True to our strategy to rotate out of the investment portfolio and into loans, the increase in interest income in the second quarter came from loan volume and changes to the earning asset mix,” said Brian Walker, Chief Financial Officer. “The average balance of the investment portfolio decreased 2.1 percent year-over-year. Our bias toward shortening the duration of the portfolio, combined with the strategy to rotate into loans further demonstrates our balanced approach toward asset sensitivity while guarding against a continued, sustained low interest rate environment. We believe we are well positioned to benefit in a rising rate environment.”

Year-to-Date

Earnings for the six months ended June 30, 2014, were $58.1 million or $1.30 per share ($1.28 diluted). This is a decrease of $6.8 million, or 10.5 percent, compared to the prior year-to-date earnings of $64.9 million or $1.62 per share ($1.61 diluted).

Net interest income for the six months ended June 30, 2014, increased $9.8 million, or 6.1 percent, compared to the same period in 2013. Net interest margin decreased to 2.45 percent for the six months ended June 30, 2014, as compared to 2.53 percent for the same period in 2013.

Noninterest income increased $22.4 million, or 9.5 percent, to $257.0 million for the six months ended June 30, 2014, as compared to the same period in 2013. The increase in noninterest income is primarily driven by increased trust and securities processing income of $19.1 million, or 15.2 percent. The increase in trust and securities processing income was primarily due to a $6.7 million, or 17.2 percent, increase in fees related to institutional and personal investment management services, a $6.5 million, or 15.0 percent, increase in advisory fee income from the Scout Funds, and a $4.5 million, or 11.6 percent, increase in fund administration and custody services. Additional increases in noninterest income include a $6.0 million increase in equity earnings on alternative investments due to unrealized gains on PCM equity method investments and a $4.1 million, or 69.0 percent increase in other noninterest income. The increase in other noninterest income is driven by $2.8 million gain on the sale of a branch property and a $1.4 million increase in fair value adjustments on interest rate swap transactions during the first six months of 2014 compared to the same period in 2013. These increases were offset by a decrease in trading and investment banking income of $1.8 million and a decrease in gains on securities available for sale of $3.4 million in the first six months of 2014 compared to the same period in 2013.

Noninterest expense increased $38.1 million, or 12.7 percent, for the six months ended June 30, 2014, compared to the same period in 2013. This increase is driven by an increase in salary and employee benefit expense of $11.1 million, or 6.7 percent, and a $20.3 million increase in the contingency reserve. As noted above, $20.3 million of contingency reserve has been recognized in 2014 in conjunction with the settlement agreement entered into on June 30, 2014, to resolve the PCM dispute. Of this amount $15.0 million was recognized in the first quarter of 2014 and $5.3 million was recognized in the second quarter of 2014.

Dividend Declaration

The Board of Directors declared during the company’s quarterly board meeting a $0.225 quarterly cash dividend, payable on October 1, 2014, to shareholders of record at the close of business on September 10, 2014.

Conference Call

The company plans to host a conference call to discuss its 2014 second quarter earnings results on July 23, 2014, at 9:30 a.m. (CDT).

Interested parties may access the call by dialing (toll-free) 800-524-8950 or (U.S.) 416-260-0113. The live call can also be accessed by visiting the investor relations area of umbfinancial.com or by using the following the link:

http://event.on24.com/r.htm?e=816187&s=1&k=2C36A678B70F9F90A5C30FBBFC76E890

A replay of the conference call may be heard until August 8, 2014, by calling (toll-free) 888-203-1112 or (U.S.) 719-457-0820. The replay pass code required for playback is conference identification number 5599321. The call replay may also be accessed via the company’s website umb.com by visiting the investor relations area.

Forward-Looking Statements:

This release contains, and our other communications may contain, forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements can be identified by the fact that they do not relate strictly to historical or current facts. All forward-looking statements are subject to assumptions, risks, and uncertainties, which may change over time and many of which are beyond our control. You should not rely on any forward-looking statement as a prediction or guarantee about the future. Our actual future objectives, strategies, plans, prospects, performance, condition, or results may differ materially from those set forth in any forward-looking statement. Some of the factors that may cause actual results or other future events, circumstances, or aspirations to differ from those in forward-looking statements are described in our Annual Report on Form 10-K for the year ended December 31, 2013, our subsequent Quarterly Reports on Form 10-Q or Current Reports on Form 8-K, or other applicable documents that are filed or furnished with the SEC. Any forward-looking statement made by us or on our behalf speaks only as of the date that it was made. We do not undertake to update any forward-looking statement to reflect the impact of events, circumstances, or results that arise after the date that the statement was made. You, however, should consult further disclosures (including disclosures of a forward-looking nature) that we may make in any subsequent Quarterly Report on Form 10-Q, Current Report on Form 8-K, or other applicable document that is filed or furnished with the SEC.

About UMB:

UMB Financial Corporation (Nasdaq: UMBF) is a diversified financial holding company headquartered in Kansas City, Mo., offering complete banking services, payment solutions, asset servicing and institutional investment management to customers. UMB operates banking and wealth management centers throughout Missouri, Illinois, Colorado, Kansas, Oklahoma, Nebraska, Arizona and Texas. Subsidiaries of the holding company include companies that offer services to mutual funds

and alternative-investment entities and registered investment advisors that offer equity and fixed income strategies to institutions and individual investors. For more information, visit umb.com, umbfinancial.com, blog.umb.com or follow us on Twitter at @UMBBank, Facebook at facebook.com/UMBBank and LinkedIn at linkedin.com/company/umb-bank.