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Cover - USD ($)
 12 Months Ended
Mar. 31, 2023
Jun. 26, 2023
Sep. 30, 2022
Cover [Abstract]      
Document Type 10-K    
Amendment Flag false    
Document Annual Report true    
Document Transition Report false    
Document Period End Date Mar. 31, 2023    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2023    
Current Fiscal Year End Date --03-31    
Entity File Number 1-31785    
Entity Registrant Name MEXCO ENERGY CORPORATION    
Entity Central Index Key 0000066418    
Entity Tax Identification Number 84-0627918    
Entity Incorporation, State or Country Code CO    
Entity Address, Address Line One 415 W. Wall    
Entity Address, Address Line Two Suite 475    
Entity Address, City or Town Midland    
Entity Address, State or Province TX    
Entity Address, Postal Zip Code 79701    
City Area Code (432)    
Local Phone Number 682-1119    
Trading Symbol MXC    
Security Exchange Name NYSEAMER    
Title of 12(g) Security Common Stock, par value $0.50 per share    
Entity Well-known Seasoned Issuer No    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Non-accelerated Filer    
Entity Small Business true    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 18,892,271
Entity Common Stock, Shares Outstanding   2,136,500  
Documents Incorporated By Reference Portions of the Registrant’s Proxy Statement relating to the 2023 Annual Meeting of Shareholders to be held on September 12, 2023, have been incorporated by reference in Part III of this Form 10-K. Such Proxy Statement will be filed with the Commission not later than 120 days after March 31, 2023, the end of the fiscal year covered by this report.    
ICFR Auditor Attestation Flag false    
Document Financial Statement Error Correction [Flag] false    
Auditor Name WEAVER AND TIDWELL, L.L.P.    
Auditor Firm ID 410    
Auditor Location Midland, Texas