KIRBY CORP

CONDENSED BALANCE SHEETS

CONDENSED STATEMENTS OF EARNINGS

CONDENSED STATEMENTS OF COMPREHENSIVE INCOME

CONDENSED STATEMENTS OF CASH FLOWS

CONDENSED STATEMENTS OF STOCKHOLDERS’ EQUITY

CONDENSED STATEMENTS OF STOCKHOLDERS’ EQUITY

NOTES TO CONDENSED FINANCIAL STATEMENTS

(1) Basis for Preparation of the Condensed Financial Statements

The condensed financial statements included herein have been prepared by Kirby Corporation and its consolidated subsidiaries (“Kirby” or the “Company”), without audit, pursuant to the rules and regulations of the Securities and Exchange Commission. Although the Company believes that the disclosures are adequate to make the information presented not misleading, certain information and footnote disclosures, including significant accounting policies normally included in annual financial statements, have been condensed or omitted pursuant to such rules and regulations. It is suggested that these condensed financial statements be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2024. Certain reclassifications have been made to reflect the current presentation of financial information.

(2) Acquisitions

On March 27, 2025, the Company purchased 14 inland tank barges with a total capacity of 364,000 barrels, including four specialty barges, andfour high horsepower towboats from an undisclosed seller for $97.3 million in cash. The 14 tank barges, including four specialty barges, transport petrochemicals and refined products on the Mississippi River System and Gulf Intracoastal Waterway. The average age of the 14 barges was 16 years.

On December 31, 2024, the Company purchased an inland tank barge from a leasing company for $2.7 million in cash. The Company had been leasing the barge prior to purchase.

On December 30, 2024, the Company purchased three inland tank barges from an undisclosed seller for $9.9 million in cash.

On May 15, 2024, the Company completed the purchase of 13 inland tank barges, with a total capacity of 347,000 barrels, andtwo high horsepower towboats from an undisclosed seller for $65.2 million in cash. The 13 tank barges, including three specialty barges, transport petrochemicals and refined products on the Mississippi River System and Gulf Intracoastal Waterway. The average age of the 13 barges was 15 years.

(3) Revenues

The following table sets forth the Company’s revenues by major source (in thousands):

Contract liabilities represent advance consideration received from customers, and are recognized as revenue over time or at a point in time as the related performance obligation is satisfied. Revenues recognized during the six months ended June 30, 2025 and 2024 that were included in the opening contract liability balances were$94.7 million and$81.5 million, respectively. The Company presents all contract liabilities within the deferred revenues financial statement caption on the balance sheets. The Company didnot have any contract assets as of June 30, 2025 or December 31, 2024.

(4) Segment Data

The Company’s operations are aggregated intotwo reportable business segments as follows:

Marine Transportation Segment (“KMT”) — Provides marine transportation by United States flagged vessels principally of liquid cargoes throughout the United States inland waterway system, along all three United States coasts, and to a lesser extent, in United States coastal transportation of dry-bulk cargoes. The principal products transported include petrochemicals, black oil, refined petroleum products and agricultural chemicals.

Distribution and Services Segment (“KDS”) — Provides after-market services and genuine replacement parts for engines, transmissions, reduction gears, electric motors, drives, and controls, specialized electrical distribution and control systems, and related equipment used in oilfield services, marine, power generation, on-highway, and other industrial applications. The Company also rents equipment including generators, industrial compressors, high-capacity lift trucks, construction equipment and refrigeration trailers for use in a variety of industrial markets. The Company also manufactures and remanufactures specialized equipment, including pressure pumping units, electric power generation equipment, and specialized electrical distribution and control equipment for oilfield service, railroad and other industrial customers.

The Company’stwo reportable business segments are managed separately by the Company’s chief operating decision maker (“CODM”), its Chief Executive Officer, based on fundamental differences in their operations. The Company’s accounting policies for the business segments are the same as those described in Note 1, Summary of Significant Accounting Policies of the Notes to Consolidated Financial Statements in the Company’s 2024 Annual Report on Form 10-K. The CODM evaluates the performance of the Company’s segments based on the contributions to operating income of the respective segments, and before income taxes, interest, gains or losses on disposition of assets, other nonoperating income, noncontrolling interests, accounting changes, and nonrecurring items. The CODM uses segment operating income to allocate resources for each segment during the annual budget and forecasting process. The CODM considers budget-to-actual variances on a monthly basis for segment operating income when making decisions about allocating capital and personnel to the segments. The CODM also uses segment operating income to assess the performance for each segment by comparing the results and return on invested capital of each segment. Intersegment revenues, based on market-based pricing, of KDS from KMT of$11.3 million and$22.5 million for the three months and six months ended June 30, 2025, respectively, and$7.5 million and$14.1 million for the three months and six months ended June 30, 2024, respectively, as well as the related intersegment profit of$1.1 million and$2.2 million for the three months and six months ended June 30, 2025, respectively, and$0.7 million and$1.4 million for the three months and six months ended June 30, 2024, respectively, have been eliminated from the tables below.

The following tables set forth the Company’s revenues, depreciation and amortization, and income or loss by reportable segment and total assets (in thousands):

(a)

Other segment items for each reportable segment includes:

KMT– selling expense, professional service expense, occupancy expense, and certain overhead expenses.

KDS– inventory-related expense, warranty expense, selling expense, professional service expense, occupancy expense, and certain overhead expenses.

The following table presents the details of “Other” total assets (in thousands):

(5) Long-Term Debt

The following table presents the carrying value and fair value (determined using inputs characteristic of a Level 2 fair value measurement) of debt outstanding (in thousands):

(a)

Variable interest rate of 5.6% at June 30, 2025 and December 31, 2024.

On July 29, 2022, the Company entered into a credit agreement (the “2027 Credit Agreement”) with a group of commercial banks, with JPMorgan Chase Bank, N.A. as the administrative agent bank that allows for a $500 million unsecured revolving credit facility (the “2027 Revolving Credit Facility”) and a $250 million unsecured term loan (the “2027 Term Loan”) with a maturity date of July 29, 2027. In the fourth quarter of 2022, the Company repaid $80 million under the 2027 Term Loan prior to scheduled maturities. In the fourth quarter of 2024, the Company repaid $100 million under the 2027 Term Loan prior to scheduled maturities. As a result, no repayments are required until March 31, 2027. Future repayments under the 2027 Term Loan are excluded from short term liabilities because the Company intends to use availability under the 2027 Revolving Credit Facility to repay these amounts upon maturity. Outstanding letters of credit under the 2027 Revolving Credit Facility were$6,000 and available borrowing capacity was$255.0 million as of June 30, 2025.

On February 3, 2022, the Company entered into a note purchase agreement for the issuance of $300 million of unsecured senior notes with a group of institutional investors, consisting of $60 million of 3.46% series A notes (“Series A Notes”) and $240 million of 3.51% series B notes (“Series B Notes”), each due January 19, 2033 (collectively, the “2033 Notes”). The Series A Notes were issued on October 20, 2022, and the Series B Notes were issued on January 19, 2023. No principal payments will be required until maturity.

The Company has a $15 million line of credit (“Credit Line”) with Bank of America, N.A. (“Bank of America”) for short-term liquidity needs and letters of credit, with a maturity date of June 30, 2026. Outstanding letters of credit under the Credit Line were$6.8 million and available borrowing capacity was$8.2 million as of June 30, 2025.

(6) Leases

The Company currently leases various facilities and equipment under cancelable and noncancelable operating leases. The accounting for the Company’s leases may require judgments, which include determining whether a contract contains a lease, allocating the consideration between lease and non-lease components, and determining the incremental borrowing rates. Leases with an initial noncancelable term of 12 months or less are not recorded on the balance sheet and related lease expense is recognized on a straight-line basis over the lease term. The Company has also elected to combine lease and non-lease components on all classes of leased assets, except for leased towing vessels, for which the Company estimates approximately 70% of the costs relate to service costs and other non-lease components. Variable lease costs relate primarily to real estate executory costs (i.e. taxes, insurance and maintenance).

Future minimum lease payments under operating leases that have initial noncancelable lease terms in excess of one year were as follows (in thousands):

The following table summarizes lease costs (in thousands):

The following table summarizes other supplemental information about the Company’s operating leases:

(7) Stock Award Plans

The compensation cost that has been charged against earnings for the Company’s stock award plans and the income tax benefit recognized in the statement of earnings for stock awards were as follows (in thousands):

During the six months ended June 30, 2025, the Company granted 131,190 restricted stock units (“RSUs”) to selected officers and other key employees under the employee stock award plan that vest ratably over five years. During May 2025, the Company granted 15,384 shares of restricted stock to nonemployee directors of the Company under the director stock plan which vestsix months after the date of grant.

(8) Taxes on Income

Earnings (loss) before taxes on income and details of the provision (benefit) for taxes on income were as follows (in thousands):

On July 4, 2025, the One Big Beautiful Bill Act (“OBBBA”) was signed into law. This legislation includes changes to U.S. federal tax law, which may be subject to further clarification and the issuance of interpretive guidance. The Company is assessing the legislation and its effect on its consolidated financial statements, which it expects to begin reflecting in the three months ended September 30, 2025.

(9) Earnings Per Share

The following table presents the components of basic and diluted earnings per share (in thousands, except per share amounts):

There wereno antidilutive stock options as of June 30, 2025 and 2024. There wereno antidilutive RSUs as of June 30, 2025 and 2024.

(10) Inventories

The following table presents the details of inventories – net (in thousands):

(11) Retirement Plans

The Company sponsors a defined benefit plan for certain of its inland vessel personnel and shore based tankermen. The plan benefits are based on an employee’s years of service and compensation. The plan assets consist primarily of equity and fixed income securities.

On April 12, 2017, the Company amended its pension plan to cease all benefit accruals for periods after May 31, 2017 for certain participants. Participants grandfathered and not impacted were those, as of the close of business on May 31, 2017, who either (a) had completed 15 years of pension service or (b) had attained age 50 and completed 10 years of pension service. Participants non-grandfathered are eligible to receive discretionary 401(k) plan contributions.

The Company’s pension plan funding strategy is to make annual contributions in amounts equal to or greater than amounts necessary to meet minimum government funding requirements. The plan’s benefit obligations are based on a variety of demographic and economic assumptions, and the pension plan assets’ returns are subject to various risks, including market and interest rate risk, making an accurate prediction of the pension plan contribution difficult. Based on current pension plan assets and market conditions, the Company does not expect to make a contribution to the Kirby pension plan during 2025.

On February 14, 2018, with the acquisition of Higman Marine, Inc. and its affiliated companies (“Higman”), the Company assumed Higman’s pension plan for its inland vessel personnel and office staff. On March 27, 2018, the Company amended the Higman pension plan to close it to all new entrants and cease all benefit accruals for periods after May 15, 2018 for all participants. The Company made contributions of$0.5 million to the Higman pension plan during the six months ended June 30, 2025. The Company expects to make additional contributions of $0.7 million during the remainder of 2025.

The Company sponsors an unfunded defined benefit health care plan that provides limited postretirement medical benefits to employees who meet minimum age and service requirements, and to eligible dependents. The plan is contributory, with retiree contributions adjusted annually. The plan eliminated coverage for future retirees as of December 31, 2011. The Company also has an unfunded defined benefit supplemental executive retirement plan (“SERP”) that was assumed in an acquisition in 1999. That plan ceased to accrue additional benefits effective January 1, 2000.

The components of net periodic benefit cost for the Company’s defined benefit plans were as follows (in thousands):

The components of net periodic benefit cost for the Company’s postretirement benefit plan were as follows (in thousands):

(12) Other Comprehensive Income

The Company’s changes in other comprehensive income (loss) were as follows (in thousands):

(a) Actuarial gains (losses) are amortized into other income (expense). (See Note 11, Retirement Plans)

(13) Contingencies and Commitments

On October 13, 2016, the tug Nathan E. Stewart and barge DBL 55, an articulated tank barge and tugboat unit (“ATB”) owned and operated by Kirby Offshore Marine, LLC, a wholly owned subsidiary of the Company, ran aground at the entrance to Seaforth Channel on Atholone Island, British Columbia. The grounding resulted in a breach of a portion of the Nathan E. Stewart’s fuel tanks causing a discharge of diesel fuel into the water. The United States Coast Guard and the National Transportation Safety Board designated the Company as a party of interest in their investigation as to the cause of the incident. The Canadian authorities including Transport Canada and the Canadian Transportation Safety Board investigated the cause of the incident. On October 10, 2018, the Heiltsuk First Nation filed a civil action in the British Columbia Supreme Court against a subsidiary of the Company, the master and pilot of the tug, the vessels and the Canadian government seeking unquantified damages as a result of the incident. On May 1, 2019, the Company filed a limitation action in the Federal Court of Canada seeking limitation of liability relating to the incident as provided under admiralty law. The Heiltsuk First Nation’s civil claim has been consolidated into the Federal Court limitation action as of July 26, 2019 and it is expected that the Federal Court of Canada will decide all claims against the Company. The Company is unable to estimate the potential exposure in the civil proceeding. The Company has various insurance policies covering liabilities including pollution, property, marine and general liability and believes that it has satisfactory insurance coverage for the cost of cleanup and salvage operations as well as other potential liabilities arising from the incident. The Company believes its accrual of such estimated liability is adequate for the incident and does not expect the incident to have a material adverse effect on its business or financial condition.

In addition, the Company is involved in various legal and other proceedings which are incidental to the conduct of its business, none of which in the opinion of management will have a material effect on the Company’s financial condition, results of operations, or cash flows. Management believes its accrual of such estimated liability is adequate and believes that it has adequate insurance coverage or has meritorious defenses for these other claims and contingencies.

The Company has issued guaranties or obtained standby letters of credit and performance bonds supporting performance by the Company and its subsidiaries of contractual or contingent legal obligations of the Company and its subsidiaries incurred in the ordinary course of business. The aggregate notional value of these instruments is$27.4 million at June 30, 2025, including$11.6 million in letters of credit and$15.8 million in performance bonds. All of these instruments have an expiration date withintwo years. The Company does not believe demand for payment under these instruments is likely and expects no material cash outlays to occur regarding these instruments.