Document and Entity Information - USD ($)	12 Months Ended
	Mar. 31, 2018	Jun. 26, 2018	Sep. 30, 2017
Document And Entity Information
Entity Registrant Name	MEXCO ENERGY CORP
Entity Central Index Key	0000066418
Document Type	10-K
Document Period End Date	Mar. 31, 2018
Amendment Flag	false
Current Fiscal Year End Date	--03-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filer	No
Entity Current Reporting Status	Yes
Entity Filer Category	Smaller Reporting Company
Entity Public Float			$ 3,827,675
Entity Common Stock, Shares Outstanding		2,037,266
Trading Symbol	MXC
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2018