Document and Entity Information	6 Months Ended
	Apr. 30, 2026 shares
Document Information Line Items
Entity Central Index Key	0000072633
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Apr. 30, 2026
Document Fiscal Year Focus	2026
Document Transition Report	false
Entity File Number	1-8245
Entity Registrant Name	NORTH EUROPEAN OIL ROYALTY TRUST
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	22-2084119
Entity Address, Address Line One	PO Box 107
Entity Address, City or Town	East Schodack
Entity Address, State or Province	NY
Entity Address, Postal Zip Code	12063
City Area Code	732
Local Phone Number	741-4008
Title of 12(b) Security	Units of Beneficial Interest
Trading Symbol	NRT
Security Exchange Name	NYSE
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 Common Stock, Shares Outstanding	9,190,590
Amendment Flag	false
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--10-31