v3.25.2
Cover
Jul. 14, 2025
Cover [Abstract]  
Document Type 8-K
Amendment Flag false
Document Period End Date Jul. 14, 2025
Entity File Number 000-55916
Entity Registrant Name ENERGY RESOURCES 12, L.P.
Entity Central Index Key 0001696088
Entity Tax Identification Number 81-4805237
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 120 W 3rd Street
Entity Address, Address Line Two Suite 220
Entity Address, City or Town Fort Worth
Entity Address, State or Province TX
Entity Address, Postal Zip Code 76102
City Area Code (817)
Local Phone Number 882-9192
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security None
Entity Emerging Growth Company false