INFINITY NATURAL RESOURCES, INC. (INR) stock intrinsic value fair value estimate & owner earnings analysis

Infinity Natural Resources is an Appalachian natural gas, natural gas liquids and oil producer centred on the Utica Shale in eastern Ohio. Public shareholders own Class A shares; the founding owners (Pearl and NGP) hold the rest of the company through units that exchange one-for-one into Class A shares, so we value everything per share on roughly 63 million shares and units combined. WHAT CHANGED. In late February 2026 the company bought a 60% share of Antero's Ohio wells and gathering assets (about 370 Bcfe of proved reserves and about 110 identified drilling locations on the acquired acreage, plus 141 miles of gathering pipe with capacity of up to 600 MMcf/d) with partner Northern Oil and Gas taking 40%. It paid for this with cash, borrowing, and $350 million of Series A convertible preferred stock sold to Quantum and Carnelian. Credit-facility borrowings rose from $151 million at year-end 2025 to $538 million at June 30, 2026, and the preferred ranks ahead of the common shares. The business is now roughly twice the size of the one in our earlier estimate, and it carries far more debt-like claims, so the earlier figures are not comparable and we have rebuilt the valuation from the enlarged company. EARNINGS LEVEL. Before the acquisition the history is short and distorted: FY2025 included a one-time $126 million share-compensation charge triggered by the IPO, and capex of $369 million on revenue of $356 million as the company grew production 46% to about 35,300 barrels of oil equivalent a day. Standard owner-earnings arithmetic on those years gives roughly break-even results, which describes the smaller, fast-growing company and not the one that exists today. We therefore measured the business from the acquisition forward. In the first half of 2026, operating cash flow was $196 million; after setting aside $17 million of favourable working-capital timing and $5 million of stock compensation, and adding back about $20 million of interest, the business generated about $194 million before capex in six months, with only one month of Antero in the first quarter. The second quarter, the first with the full acquisition, ran at about $430 million a year on the same basis. We anchored at $390 million a year, below the second-quarter pace because it is a single full quarter. Maintenance capital is the judgement that matters most: 2026 spending is running near $510 million a year but is mostly drilling to grow, so we estimate about $200 million a year (about $1.40 per Mcfe a year on roughly 385 MMcfe/d) to hold production flat. That is supported by 2025 reserve additions of roughly 68 million barrels of oil equivalent on $369 million of spending (about $5.40 per barrel, or $0.90 per Mcfe), with a cushion for cost inflation. The anchor is therefore about $190 million a year before lenders, or about $3.00 per share. GROWTH CREDITED. None. Owner earnings are held flat. The company has not yet shown, through a gas-price downturn and from its own cash, that it can add production steadily without borrowing, and the Antero drilling locations are not yet drilled. Proved reserves of about 260 million barrels of oil equivalent (before this year's production) support roughly ten years of output at the current rate; beyond that we assume earnings fade to zero over ten more years, crediting only the 107,000 net acres as partial support for the fade. Midstream cost savings and development of the 110 acquired locations are left out until they appear in results. BASE CASE. About $190 million a year before lenders for ten years, then fading to zero over the following ten, is worth about $1.79 billion. The company owes about $913 million: $538 million of credit-facility borrowings, about $360 million of preferred stock including accrued dividends, and roughly $15 million for borrowing costs above our benchmark rate. The difference is about $874 million, or about $13.90 per share. We treat the preferred as a debt-like claim because it converts into shares only above $21.39; the base value is below that. Obligations to the founding owners under the tax receivable agreement could not be quantified from the data available and are not deducted. BEAR CASE: roughly $(0.85) per share. This applies a downturn like the 2019 to 2020 Appalachian gas collapse, when regional gas prices fell roughly a third for several years. Realised revenue falls by about $230 million a year, taking cash before capex from $390 million to about $190 million for three years; capex is cut to $150 million so earnings fall to about $40 million a year, then recover only to about $130 million a year because the asset base has been run harder. Fading to zero follows. The business is worth about $990 million. The credit facility comes due in September 2028, in the middle of this downturn, and refinancing at wider spreads plus preferred dividends compounding while they are paid in kind add about $130 million of claims, taking total claims to about $1.04 billion. The company appears to owe slightly more than the business is worth in this case, by about $55 million. Cash flow before lenders (about $80 million) would still cover the roughly $40 million interest bill, so the case is consistent with lenders staying in. BULL CASE: about $19.90 per share. The second-quarter pace of about $430 million before capex holds, so owner earnings reach about $230 million a year for ten years and then fade over ten more. The business is worth about $2.16 billion; after claims of about $913 million, about $1.25 billion remains, or about $19.90 per share. This needs no new drilling success or higher gas prices, only that the first full quarter of the combined business is representative. TESTING THE CASE. The most important and least certain input is maintenance capital. If it were $270 million a year, as a mechanical read of 2025 spending would suggest, base value would fall to roughly $3.50 a share. The reserve-addition cost above is the specific fact that persuades us the lower figure is the better estimate. Value is also very sensitive to realised prices: each 10% on realised revenue is worth about $9 to $10 a share because the debt and preferred are fixed claims. We could not reconcile the credit-facility terms after the acquisition (borrowing base, maturity extension) because the second-quarter filing text was not available to us, and the 2028 maturity used here may have been extended. MARGIN-OF-SAFETY PRICE: $6.50. We are fairly sure of the cash the business produces today, since it comes from two reported quarters and a long-lived reserve base, but we are less sure of two things: what it costs to stay flat, and what gas sells for. The worst plausible outcome is a multi-year gas price slump around the 2028 facility maturity with $350 million of preferred and about $540 million of borrowings ahead of the common shares; there the shares could be worth nothing, and the structure of senior claims, a controlling group of founders and preferred holders holding about 69% of votes, and one commodity in one region offers no cushion. If maintenance capital is wrong in the way described above, the shares are worth around $3.50; if gas is weak but not catastrophic they are worth well under the base value. The business pays no common dividend, so shareholders are paid only by debt paydown: about $150 million a year of owner earnings after interest at the anchor level, which would retire the preferred and borrowings over six to seven years and lift per-share value by roughly $2 to $2.50 a year. The price assumes a holding period of three or more years for that. At $6.50 the shares would only need to be worth about $11 in three years to imply 20% a year, which is inside what the base case plus debt paydown suggests while leaving room for the maintenance-capital and gas-price errors. A higher price leaves no room for those errors.