---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-310563"
form_type: "8-K"
ticker: "INR"
cik: "0002029118"
company_name: "INFINITY NATURAL RESOURCES, INC."
filed_at: "2025-12-08T23:59:59+00:00"
generated_at: "2026-05-16T14:07:26.269475+00:00"
event_type: "m_and_a"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Infinity Natural Resources announces $1.2B acquisition of Antero Ohio assets, net $612M for 51% stake

## Summary
- Total deal value $1.2B; Infinity's net purchase price $612M for 51% undivided interest; Northern Oil & Gas buys 49% for $588M.
- Acquires ~71k net Utica Shale acres in Ohio, ~133 MMcfe/d net production (Q3'25), and ~110 undeveloped laterals (1.6M lateral feet).
- Credit facility expanded from $375M to $875M to fund the acquisition; $500M in incremental commitments from existing lenders.
- Anticipates ~$25M in operational and financial synergies in 2026; closing expected in Q1 2026, subject to customary conditions.

## SEC filing metadata
- accession: 0001193125-25-310563
- form_type: 8-K
- ticker: INR
- cik: 0002029118
- company_name: INFINITY NATURAL RESOURCES, INC.
- filed_at: 2025-12-08T23:59:59+00:00
- event_type: m_and_a
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 1.01, 2.03, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2029118/000119312525310563/0001193125-25-310563-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2029118/000119312525310563/d24949d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-310563
- JSON: https://secwatch.observer/filing/0001193125-25-310563.json
- Plain text: https://secwatch.observer/filing/0001193125-25-310563.txt

## Key facts
- Material Agreements
  INFINITY NATURAL RESOURCES, INC. entered into Midstream Purchase Agreement with Antero Midstream LLC, Antero Water LLC, and Antero Treatment LLC valued at $400 million (effective 2025-12-05).
  - Action: entry
  - Agreement: asset purchase
  - Counterparty: Antero Midstream LLC, Antero Water LLC, and Antero Treatment LLC
  - Value: $400 million
  - Effective: 2025-12-05
  source text: On December 5, 2025, INR Holdings and Northern (collectively, the “Midstream Buyers”) also entered into a purchase and sale agreement (the “Midstream Purchase Agreement” and, together with the Upstream Purchase Agreement, the “Purchase Agreements”) with Antero Midstream LLC, a Delaware limited liability company, Antero Water LLC, a Delaware limited liability company, and Antero Treatment LLC, a Delaware limited liability company (collectively, the “Midstream Sellers” and, together with the Upstream Sellers, the “Sellers”), pursuant to which the Midstream Buyers agreed to jointly purchase from the Midstream Sellers certain gathering, compression and transportation systems, water facilities and systems, equipment and related assets located in the counties of Belmont, Guernsey, Monroe, Noble and Washington, Ohio (the “Midstream Assets” and, together with the Upstream Assets, the “Assets”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/2029118/000119312525310563/0001193125-25-310563-index.htm
- Material Agreements
  INFINITY NATURAL RESOURCES, INC. entered into Upstream Purchase Agreement with Antero Resources Corporation, Antero Minerals LLC, and Monroe Pipeline LLC valued at $800 million (effective 2025-12-05).
  - Action: entry
  - Agreement: asset purchase
  - Counterparty: Antero Resources Corporation, Antero Minerals LLC, and Monroe Pipeline LLC
  - Value: $800 million
  - Effective: 2025-12-05
  source text: On December 5, 2025, Infinity Natural Resources, LLC (“INR Holdings”) and Northern Oil and Gas Inc. (“Northern” and, together with INR Holdings, the “Upstream Buyers”) entered into a purchase and sale agreement (the “Upstream Purchase Agreement”) with Antero Resources Corporation, a Delaware corporation, Antero Minerals LLC, a Delaware limited liability company and Monroe Pipeline LLC, a Delaware limited liability company (collectively, the “Upstream Sellers”), pursuant to which the Upstream Buyers agreed to jointly purchase from the Upstream Sellers certain rights, title and interests in upstream oil and gas properties, rights and related assets located in the State of Ohio (the “Upstream Assets”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/2029118/000119312525310563/0001193125-25-310563-index.htm
- Material Agreements
  INFINITY NATURAL RESOURCES, INC. amended Third Amendment to Credit Agreement with the lenders and Citibank, N.A., as administrative agent (effective 2025-12-05).
  - Action: amendment
  - Agreement: credit facility
  - Counterparty: the lenders and Citibank, N.A., as administrative agent
  - Effective: 2025-12-05
  source text: On December 5, 2025, INR Holdings entered into that certain Third Amendment to Credit Agreement (the “Amendment”), which amends that certain Credit Agreement, dated as of September 25, 2024, by and among INR Holdings, the lenders from time to time party thereto and Citibank, N.A., as the administrative agent, collateral agent and an issuing bank (as previously amended, the “Existing Agreement” and, as amended by the Amendment, the “Credit Agreement”).
  evidence_url: https://www.sec.gov/Archives/edgar/data/2029118/000119312525310563/0001193125-25-310563-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.