WTI crude oil futures linger around a one week low on Tuesday morning in Asia, giving up yesterday’s sharp gains that came on the back of concerns over the United States' sanctions on Russia that may affect global supplies. US President Donald Trump late Monday announced new weapons for Ukraine and threatened sanctions on buyers of Russian exports unless Russia agrees to a peace deal in 50 days. Meanwhile, on the positive side, China’s crude imports hit a 10-month high, rising 7.4% on the year in June to 12.14 million barrels per day, according to customs data released on Monday, signaling firm demand from the largest consumer. Currently, the counter is quoting at $66.62 per barrel, down 0.54% on the day.