Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-8858 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 02-0381573 (State or other jurisdicti ...

Financial Data and Key Metrics Changes - The company reported a net income of $21.5 million for Q1 2022, with earnings per share of $1.35, representing a 7.1% increase compared to the same period in 2021 [9][21] - The adjusted gross margin for electric operations was $24.6 million, an increase of 3.8% year-over-year, while gas adjusted gross margin was $52 million, reflecting an 8.8% increase [23][24] - Overall sales increased by 1.4% year-over-year, with commercial and industrial unit sales rising by 2.3% [23] Business Line Data and Key Metrics Changes - Electric adjusted gross margin increased due to higher distribution rates and customer growth, with a total of 551 new customers added, marking a 1.5% increase [23] - Gas adjusted gross margin growth was driven by higher rates and customer growth, with colder winter weather contributing to the increase [24] Market Data and Key Metrics Changes - The company serves regions in Maine and New Hampshire, where approximately $8 billion in construction is planned or underway, indicating robust economic development [14] - Significant projects include a $1.7 billion expansion at the Portsmouth Naval Shipyard and a new Amazon Distribution Center in Massachusetts, which are expected to create jobs and drive further investment [16][17] Company Strategy and Development Direction - The company maintains a long-term earnings growth guidance of 5% to 7%, with near-term growth expected to exceed this range [9] - A focus on sustainability includes plans to integrate renewable natural gas into the supply portfolio, supported by legislative efforts in New Hampshire [11] Management's Comments on Operating Environment and Future Outlook - Management noted that inflationary impacts are expected to affect the capital budget more significantly in future years, with current increases in equipment and materials costs [39] - The company has mechanisms in place to recover increased capital costs due to inflation through regulatory solutions [44] Other Important Information - The company has a strong investment outlook totaling about $755 million over the next five years, aimed at ensuring safety, reliability, and modernization of the distribution system [28] - A recent increase in the quarterly dividend reflects confidence in the company's strategic plan and ability to execute [30] Q&A Session Summary Question: Updates on advanced energy systems and clean energy solutions - Management indicated that updates may come later in the year, depending on legislative progress and internal evaluations [36] Question: Inflationary impacts on raw materials and measures to mitigate customer bill impacts - Management highlighted significant cost increases in the capital budget and noted that they are not yet seeing impacts on operating and maintenance expenses [39][42] Question: Customer growth and assumptions for long-term EPS CAGR - The long-term earnings growth is based on historical customer growth rates, with no significant adjustments made at this time [45]

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from _______to _______ Commission File Number 1-8858 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 02-0381573 (State or ...

Financial Data and Key Metrics Changes - For fiscal year 2021, the company reported net income of $36.1 million and earnings per share of $2.35, reflecting an increase of $0.20 per share or 9.3% compared to 2020 [6][10] - The adjusted gross margin for electric operations was $97.4 million, an increase of $4.5 million or 4.8% from fiscal year 2020, driven by higher rates and customer growth [11] - The adjusted gross margin for gas operations was $133.1 million, an increase of $10.5 million or 8.6% compared to fiscal year 2020, attributed to higher rates and customer growth [12] Business Line Data and Key Metrics Changes - Electric adjusted gross margin increased due to a 3.5% rise in commercial and industrial unit sales, reflecting improving economic conditions [11] - Gas adjusted gross margin growth was supported by $9.4 million from higher rates and customer growth, along with $1.1 million from colder winter weather [12] Market Data and Key Metrics Changes - The company expects over 80% of its customers to be served under decoupled rate mechanisms by year-end, minimizing revenue fluctuations due to weather and business cycles [5] - The company operates in areas with significant economic development, particularly in New Hampshire and Maine, which have high dependency on fuel oil for home heating [19] Company Strategy and Development Direction - The company is focused on electrification opportunities, particularly expanding EV infrastructure and exploring solar energy projects [27] - The long-term rate-based growth is anticipated to be between 6.5% to 8.5%, with a balanced investment mix between gas and electric operations [16][17] - Sustainability is embedded in the company's business strategy, with a commitment to reducing emissions and enhancing customer experience [8][23] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the company's ability to execute its strategic and financial plans, highlighting strong customer growth and operational excellence [23] - The company is well-positioned for future growth, with a robust investment plan aimed at ensuring safety and reliability of the distribution system [16][23] Other Important Information - The company declared a quarterly dividend of $0.39 per share, reflecting confidence in its financial performance and ability to execute on strategic plans [18] - The five-year investment plan totals approximately $755 million, focusing on safety, reliability, and grid modernization initiatives [16] Q&A Session Summary Question: Can you provide details on potential strategic projects around advanced energy systems? - The company is focused on electrification opportunities, particularly expanding EV infrastructure and exploring solar energy projects [27] Question: What was the nature of the agreement in the UES settlement? - The settlement agreement is comprehensive in scope, covering various issues included in the filing, but specifics cannot be disclosed until it is filed [28] Question: What are the assumptions for electric and gas growth within the EPS growth rate? - The EPS growth rate is based on rate-based growth and anticipated investments, with an uptick in customer conversions to natural gas observed [30] Question: What resources are available for renewable natural gas within your territories? - The company has access to diverse feedstocks such as dairy, food waste, and biomass for renewable natural gas projects [34] Question: How much of Maine and New Hampshire is reachable through your natural gas pipes? - Currently, the penetration in Northern New Hampshire is around 60%, with opportunities for further customer conversions in existing service areas [35] Question: How is the CapEx trend expected to change between gas and electric investments? - As gas pipe replacement projects conclude, the company anticipates a shift in CapEx towards electric investments, reflecting more opportunities in electrification [36]

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15 (d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Table of Contents Commission file number 1-8858 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 02-0381573 (State or other jurisdi ...

Unitil Corporation (NYSE:UTL) Q3 2021 Earnings Conference Call November 2, 2021 10:00 AM ET Company Participants Todd Diggins - Director of Finance Tom Meissner - Chairman, President & Chief Executive Officer Bob Hevert - Senior Vice President, Chief Financial Officer & Treasurer Conference Call Participants Kody Clark - Bank of America Operator Good day and thank you for standing by. Welcome to Q3 2021 Unitil Earnings Conference Call. At this time, all participants are in a listen-only mode. After the spea ...

☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q For the transition period from to Commission File Number 1-8858 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 02-0381573 (State or other juris ...

Unitil Corporation (NYSE:UTL) Q2 2021 Earnings Conference Call August 3, 2021 10:00 AM ET Company Participants Todd Diggins - Director of Finance Tom Meissner - President, Chairman and Chief Executive Officer Robert Hevert - Senior Vice President, Chief Financial Officer and Treasurer Conference Call Participants Operator Good day and thank you for standing by. Welcome to the Q2 2021 Unitil Earnings Conference Call. At this time, all participants are in a listen-only mode. After the speakers' presentation t ...

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 1-8858 UNITIL CORPORATION (Exact name of registrant as specified in its charter) New Hampshire 02-0381573 (State or other jurisdicti ...

Unitil Corporation. (NYSE:UTL) Q1 2021 Results Earnings Conference Call May 4, 2021 2:00 PM ET Company Participants Todd Diggins - Director of Finance Tom Meissner - President, Chairman of the Board, Chief Executive Officer Robert Hevert - Senior Vice President, Chief Financial Officer and Treasurer Conference Call Participants Michael Gaugler - Janney Montgomery Shelby Tucker - RBC Capital Markets Operator Good afternoon and welcome to the Q1 2021 Unitil Earnings Conference Call. At this time all participa ...