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Capitalization
 9 Months Ended
Sep. 30, 2025
Equity [Abstract]  
Capitalization Capitalization
Common Stock – During the nine months ended September 30, 2025 and 2024, there were 12,522 common shares (approximately $0.7 million) and 13,498 common shares (approximately $0.7 million) respectively, issued under the Middlesex Water Company Investment Plan.
In April 2023, the NJBPU authorized Middlesex to issue and sell up to 1.0 million shares of its common stock, without par value, through December 31, 2025, through one or more traditional underwriting offerings and/or ATM offerings. In September 2025, the NJBPU authorized Middlesex to issue and sell up to 2.5 million shares of its common stock, without par value, during the period January 2026 through December 2028, through one or more traditional underwriting offerings and/or ATM offerings.
On May 12, 2025, Middlesex entered into an At-the-Market (ATM) Equity Offering Sales Agreement (Equity Sales Agreement) with BofA Securities, Inc., Robert W. Baird & Co. Incorporated, and Janney Montgomery Scott LLC, pursuant to which Middlesex may offer and sell shares of its common stock, no par value per share, from time to time in “at-the-market” offerings, having an aggregate gross sales price of up to $110.0 million. The Company intends to use the net proceeds from these sales, after deducting commissions and offering expenses, to fund our capital expenditures, to purchase and maintain plant equipment, as well as for other general corporate purposes. For the three and nine months ended September 30, 2025, Middlesex issued and sold a total of 316,786 and 380,741 shares of common stock, respectively, at a weighted average price of $53.47 and $54.10 per share, respectively, and received $16.7 million and $20.3 million in net proceeds, respectively, under the Equity Sales Agreement. As of September 30, 2025, the Company has $89.4 million of aggregate gross sales remaining under the Equity Sales Agreement.
Long-term Debt – Subject to regulatory approval, the Company periodically issues long-term debt to fund its investments in utility plant. To the extent possible and fiscally prudent, the Company finances qualifying capital projects under State Revolving Fund (SRF) loan programs in New Jersey and Delaware. These government programs provide financing at interest rates typically below rates available in the broader financial markets. A portion of the borrowings under the New Jersey SRF is interest-free.
Middlesex is currently authorized by the BPU to borrow up to $300.0 million through December 31, 2025, in one or more negotiated transactions in the form of notes and/or first mortgage bonds through loans from the New Jersey SRF Program, the New Jersey Economic Development Authority (NJEDA), private placement and other financial institutions, as needed.
In September 2025, the NJBPU authorized Middlesex to borrow up to $260.0 million during the period January 2026 through December 2028, in one or more negotiated transactions in the form of notes and/or first mortgage bonds through loans from the New Jersey SRF Program, the NJEDA, private placement and other financial institutions as needed.
In October 2025, Middlesex closed on a $30.0 million, 5.99% private placement of First Mortgage Bonds (FMBs) due 2055, designated as Series 2025A. The net proceeds from the sale were used to repay short-term borrowings under the Company’s bank lines of credit and for other general corporate purposes.

In September 2024, Tidewater closed on a $2.2 million Delaware SRF loan with a 0.0% interest rate with maturity dates in 2044. This loan is for costs associated with Tidewater’s obligation, as required by federal law and Delaware regulations, to
identify and inventory lead service lines throughout Tidewater’s service area. Tidewater has drawn down $1.7 million as of September 30, 2025 and expects that the requisitions will continue through the fourth quarter of 2025.

In May 2024, Tidewater closed on four Delaware SRF loans totaling $5.6 million, all at interest rates of 2.0% with maturity dates in 2044. These loans are for the construction, relocation, improvement, and/or interconnection of transmission mains and construction of a water treatment facility. Tidewater has drawn down $0.9 million on these loans as of September 30, 2025. Each project has its own construction timetable with the last spending set to occur in 2027.

Separately, Tidewater has two active construction projects funded by prior year Delaware SRF loans totaling $8.3 million with remaining availability of funds for borrowing. These loans are for the construction of a one million gallon elevated storage tank and construction, relocation, improvement, and interconnection of transmission mains. Tidewater has drawn a total of $7.2 million through September 30, 2025 and expects that the requisitions will continue through the fourth quarter of 2025.
Fair Value of Financial Instruments – The following methods and assumptions were used by the Company in estimating its fair value disclosure for financial instruments for which it is practicable to estimate that value. The carrying amounts reflected in the condensed consolidated balance sheets for cash and cash equivalents, accounts receivable, accounts payable and notes payable approximate their respective fair values due to the short-term maturities of these instruments. The fair value of FMBs and SRF Bonds (collectively, the Bonds) issued by Middlesex is based on quoted market prices for similar issues. Under the fair value hierarchy, the fair value of cash and cash equivalents is classified as a Level 1 measurement and the fair value of notes payable and the FMBs in the table below are classified as Level 2 measurements. The carrying amount and fair value of the FMBs were as follows:
(Thousands of Dollars)
September 30, 2025December 31, 2024
Carrying
Amount		Fair
Value		Carrying
Amount		Fair
Value
FMBs$126,172 $125,545 $129,602 $125,067 
It was not practicable to estimate the fair value on our outstanding long-term debt for which there is no quoted market price and there is not an active trading market. For details, including carrying value, interest rates and due dates on these series of long-term debt, please refer to those series noted as “Amortizing Secured Notes” and “State Revolving Trust Notes” on the Condensed Consolidated Statements of Capital Stock and Long-Term Debt. The carrying amount of these instruments was $230.5 million and $229.8 million at September 30, 2025 and December 31, 2024, respectively. Advances for construction have carrying amounts of $24.1 million and $22.6 million at September 30, 2025 and December 31, 2024, respectively. Their relative fair values cannot be accurately estimated since future refund payments depend on several variables, including new customer connections, customer consumption levels and future rate increases.
Substantially all of the utility plant of the Company is subject to the lien of its mortgage, which includes debt service and capital ratio covenants. The Company is in compliance with all of its mortgage covenants and restrictions.