Earnings Labs

Montauk Renewables, Inc. (MNTK)

Q4 2025 Earnings Call· Thu, Mar 12, 2026

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Transcript

Operator

Operator

Good day, everyone, and thank you for participating in today's conference call. I would like to turn the call over to Mr. John Ciroli as he provides some important cautions regarding forward-looking statements and non-GAAP financial measures contained in the earnings materials made on this call. John, please go ahead.

John Ciroli

Management

Thank you, and good day, everyone. Welcome to Montauk Renewables Earnings Conference Call to review the full year 2025 financial and operating results and development. I'm John Ciroli, Chief Legal Officer and Secretary of Montauk. Joining me today are Sean McClain, Montauk's President and Chief Executive Officer, to discuss business developments and Kevin Van Asdalan, Chief Financial Officer, to discuss our full year 2025 financial and operating results. At this time, I would like to direct your attention to our forward-looking disclosure statement. During this call, certain comments we make constitute forward-looking statements and as such, involve a number of assumptions, risks and uncertainties that could cause the company's actual results or performance to differ materially from those expressed in or implied by such forward-looking statements. These risk factors and uncertainties are further detailed in Montauk Renewables' SEC filings. Our remarks today may also include non-GAAP financial measures. We present EBITDA and adjusted EBITDA metrics because we believe the measures assist investors in analyzing our performance across reporting periods on a consistent basis by excluding items that we do not believe are indicative of our core operating performance. These non-GAAP financial measures are not prepared in accordance with the generally accepted accounting principles. Additional details regarding these non-GAAP financial measures, including reconciliations to the most direct comparable GAAP financial measures can be found in our slide presentation and in our full year 2025 earnings press release issued and filed March 11, 2026, which is available on our website at ir.montaukrenewables.com. After our remarks, we will open the call to questions from analysts. We ask that you please keep to one question to accommodate as many questions as possible. And with that, I will turn the call over to Sean.

Sean McClain

Management

Thank you, John. Good day, everyone, and thank you for joining our call. I am pleased to report that despite the sale of one of our RNG facilities in 2024, we achieved growth in our 2025 RNG production. During 2025, our Pico project received its final tranche of increased contractual feedstock. Processed through our expanded digestion capacity, inlet feedstock averaged approximately 458,000 gallons per day, 17% in excess of our contractual minimum. Given these higher inlet averages, we are currently evaluating additional development expansion opportunities to ensure the beneficial processing of all available feedstock volumes. 2025 RNG production from our expanded redesigned facility was approximately 31.8% higher when compared to the previous year. To maximize the economic benefit from our increased production and from future development opportunities, we have negotiated the termination of the earn-out obligation related to the acquisition of the Pico facility. During 2025, we successfully completed the construction and commissioning of our second RNG processing facility at the Apex landfill. Though we continue to have excess available capacity with the second facility commissioned as the landfill host increases its waste intake, we produced approximately 7.8% more RNG in 2025 as compared to the previous year. Our GreenWave Energy Partners joint venture continues to address the limited capacity of RNG utilization for transportation by offering third-party RNG volumes access to exclusive, unique and proprietary transportation pathways. During 2025, GreenWave matched available dispensing capacity with available third-party RNG volumes, separated RINs and distributed RINs to the partners of GreenWave. Through our ownership percentage of GreenWave, we received 706,000 RINs and recorded income of $1.5 million during 2025. In September 2025, a joint motion was filed with the North Carolina Utilities Commission by various entities seeking to modify and delay certain aspects of the Clean Energy Portfolio Standards, specifically the…

Kevin Van Asdalan

Management

Thank you, Sean. I will be discussing our full year 2025 financial and operating results. Please refer to our earnings press release and the supplemental slides that have been posted to our website for additional information. Our profitability is highly dependent on the market price of environmental attributes, including the market price for RINs. As we self-market a significant portion of our RINs, a decision not to commit to transfer available RINs during a period will impact our revenue and operating profit. We have entered into commitments to transfer all RINs from 2025 RNG production, which generated RINs that were separated in 2026. In 2026, we have transferred approximately 3.9 million RINs from the 2025 compliance year at an average realized price of approximately $2.41. Additionally, we have entered into commitments to transfer approximately 2.5 million RINs generated and available for sale from our 2026 RNG production at an average realized price of approximately $2.42. Total revenues in 2025 were $176.4 million, flat compared to $175.7 million in 2024. There was an increase in the number of RINs we self-marketed during 2025 due to a decision not to commit 6.8 million RINs in the fourth quarter of 2024. The 2025 average realized RIN price of $2.33 decreased approximately 29% compared to $3.28 in 2024. Natural gas index price increased approximately 51.1% during 2025, moving from $2.27 in 2024 to $3.43 in 2025. Total general and administrative expenses were $31.7 million for 2025, a decrease of $4.6 million or 12.5% compared to $36.3 million in 2024. Employee-related costs, including stock-based compensation were $18.4 million in 2025, a decrease of $4.7 million or 20.5% compared to $23.1 million in 2024. The decrease was primarily related to the accelerated vesting of certain restricted share awards as the result of the termination of employee…

Sean McClain

Management

Thank you, Kevin. In closing, while we don't provide guidance as to our internal expectations on the market price of environmental attributes, including the market price of D3 RINs, we would like to provide our 2026 outlook. It's important to note that our guidance ranges include internal assumptions that may or may not align with current market trends. We expect our RNG production volumes to range between 5.8 million and 6.1 million MMBtu and corresponding RNG revenues to range between $175 million and $190 million. We expect renewable electricity production volumes to range between 195,000 and 207,000 megawatt hours and corresponding renewable electricity revenues to range between $35 million and $41 million. Included within our Renewable Electricity segment are our expectations of production and revenues related to the Turkey, North Carolina development project. And with that, we will pause for any questions from analysts.

Operator

Operator

[Operator Instructions] And our first question will be coming from the line of Betty Zhang of Scotiabank.

Y. Zhang

Analyst

Would you be able to discuss what's built into your 2026 RNG production outlook? Specifically, where is the growth coming from? And are you expecting to see any additional volumes from the 15-liter engines?

Kevin Van Asdalan

Management

Thanks, Betty, for the question. Generally, across our portfolio, we're seeing increases across all of our RNG sites related to our expectations of landfill improvements in our existing wellfield automation initiatives. And it's a portfolio increase. It's an increase across all the sites of our portfolio.

Sean McClain

Management

Betty indicated in our spend for 2025, there were a number of projects that we took on regarding nonlinear maintenance activities, wellfield investments, commissioning of facilities that when you look on a full year basis, the majority of the growth that you get year-over-year is the full year realization of those initiatives that are not only already complete and paid for, but are also already starting to show benefits as you get into the Q4 period of 2025.

Operator

Operator

And our next question will be coming from the line of Tim Moore Clear Street.

Timothy Michael Moore

Analyst

I appreciate it and great job closing out the fourth quarter. I'm attempting to just triangulate your adjusted EBITDA potential growth. I know you don't specifically guide on it, but do you think it could grow at twice the percentage rate of revenue growth? Because you are lapping a lot of those CapEx, operating maintenance, preventative maintenance, wellfield enhancements, engines. And then you're going to have the RECs inflow from North Carolina and then -- if D3 pricing hangs in there. Just kind of trying to triangulate maybe how much of that one-off operating kind of preventative maintenance CapEx won't be repeated at the same amount this year?

Kevin Van Asdalan

Management

Thanks, Tim. Obviously, we provide guidance expectations around production and revenues for our 2 main operating segments. We don't provide external guidance around EBITDA. With the commissioning of our North Carolina Turkey project in the second quarter of this year, next -- beginning next month, there will be a significant uplift in EBITDA coming from that location. And we do -- while we do have wellfield enhancement initiatives that were started in 2025 at some of our sites that will continue through 2026, there's always that timing and consistency of nonlinear spend that as items roll off in 2025 and aren't replicated in 2026, there will be some new spend in 2026 that wasn't in 2025. However, I did want to highlight that though with the increase in our nondevelopment capital expenditures, specifically at our Bowerman location, it's a 0 hour of all the engines and an entire capital expense as opposed to operating expenses related to normal original equipment manufacturer recommended expenses that won't be incurred in 2026.

Sean McClain

Management

I think, Tim, if I understand the question, definitively, you'll see an uptick in cash flows because a number of the initiatives that you're hearing that are nonlinear are capitalized as opposed to embedded in your G&A and your operating expense. The areas that are expensed, both from OpEx and administrative costs, the areas that you would see things disproportionate as you head into this year, EBITDA was artificially suppressed in '25 because you had a mismatch between noncapitalizable costs that were in your Turkey, North Carolina development, but you didn't have any corresponding production in revenue. The other piece of it is there were a number that we called out throughout the year, a number of non-repeated noncash, primarily stock-based compensation adjustments that went through your administrative line associated with a number of employee matters that are not going to repeat themselves in 2026. Significant enough that you would see that disproportionate pickup in EBITDA.

Operator

Operator

[Operator Instructions] Our next question will be coming from the line of Ryan Pfingst of B. Riley Securities.

Ryan Pfingst

Analyst

I wanted to ask a follow-up on guidance. For RNG revenues, does the $15 million range primarily reflect potential RIN price outcomes? Or are there other initiatives on the production side or elsewhere that could drive you towards the higher end of that range?

Kevin Van Asdalan

Management

Yes. Thanks for the question. At the beginning of the year, we're trying to cover off various expectations, not just from our production. But to your point, a potential range of RIN pricing. While we're not -- while we won't have a 2025 RIN hangover as we've already committed and transferred our vintage 2025 RINs and we're moving into 2026 commitments, we would anticipate potentially an elongated 2026 period that there's 2025 settlement of RINs from last year given the shutdown that occurred in the federal government last year. So we're trying to manage outcomes of our production ranges as well as though the RIN prices held steady over the last handful of months for either '25 vintage RINs or '26 vintage RINs, we're trying to accommodate a wide range of RIN pricing sitting here with the vast majority of our 2026 RIN availability not yet committed at pricing.

Operator

Operator

And I would now like to turn the call back to Sean for closing remarks.

Sean McClain

Management

Thank you all for the questions, and thank you all for taking the time to join us on the conference call today. We look forward to speaking with you throughout 2026.

Operator

Operator

And this concludes today's program. Thank you for participating. You may now disconnect.