Morah Rach, Citgo is owned by the Chavez regime in Venezuela and uses Venezuelan oil. They are allies with Iran, allow the Iranians to use bases in their country, the government has launched anti Semitic and anti Israel tirades in the government controlled press, and their agenda is virulently anti American.
Lukoil is Russian, derived from the state oil companies that broke up on the dissolution of the USSR. Its president is the former soviet deputy minister of oil production and it is the single largest taxpayer to Putin’s regime. Given Putin’s support for Syria and Iran, and given the general nastiness of many Russian “business practices”, I’d be just as reluctant to buy their oil as I would Arab oil.
If you are trying your best, you might want to go with an electric car, because these choices are all bad ones.