www.treasury.gov/resource-center/sanctions/OFAC-Enforcement/Pages/20180501.aspx
See also:
www.srz.com/resources/sanctions-update-venezuela-and-ukraine-russia.html
www.findknowdo.com/news/09/16/2022/ofac-targets-additional-entities-crucial-russias-war-effort
Update:
www.findknowdo.com/news/01/06/2021/ofac-issues-new-and-amended-guidance-caatsa?utm
www.findknowdo.com/news/04/08/2022/ofac-adds-russian-state-owned-entities-sdn-list?utm