Well, it doesn't sound plausible that Nigeria is subsidizing PMS for neighboring countries. How does that affect the economy? Money released from there could be channeled into productive use
Our petroleum marketers are the main problem.
If they did not buy at subsidize price to send out to these neighboring countries, these countries will come buy it themselves at the official price which can fetch the country more money, but our marketers chose to hijack the profit instead of leaving it to the government.