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Document and Entity Information
Feb. 06, 2025
Cover [Abstract]  
Amendment Flag false
Entity Central Index Key 0002029118
Document Type 8-K
Document Period End Date Feb. 06, 2025
Entity Registrant Name INFINITY NATURAL RESOURCES, INC.
Entity Incorporation State Country Code DE
Entity File Number 001-42499
Entity Tax Identification Number 99-3407012
Entity Address, Address Line One 2605 Cranberry Square
Entity Address, City or Town Morgantown
Entity Address, State or Province WV
Entity Address, Postal Zip Code 26058
City Area Code (304)
Local Phone Number 212-2350
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Class A common stock, par value $0.01 per share
Trading Symbol INR
Security Exchange Name NYSE
Entity Emerging Growth Company true
Entity Ex Transition Period false