The United States granted 180-day waivers on Iran sanctions to Sri Lanka, China, India and a number of other countries on Friday in exchange for their cutting purchases of oil from Iran, the Wall Street Journal reported.

President Barack Obama’s administration has now renewed waivers for all 20 of Iran’s major oil buyers, after granting them to Japan and 10 European Union countries in September. Friday’s action was the second renewal for all 20 after President Obama signed the sanctions into law a year ago.