Iran said Sunday its nuclear activities have not halted or slowed down, rejecting reports that it has not significantly expanded its uranium enrichment program this summer as planned.

OPEC’s second largest producer Iran is making a drastic cut in gasoline imports through rationing and expects to save nearly $3 billion in this Iranian year, a top Iranian oil official said on Tuesday.

Some OPEC members began pumping more crude well ahead of their decision earlier this month to increase output, Iran’s OPEC governor said.