New Delhi, Feb. 6 -- Oil prices were little moved in early trading on Tuesday, as market participants assessed a visit to the Middle East by U.S. Secretary of State Antony Blinken to discuss a ceasefire offer in the region. Blinken met Saudi Arabia's de-facto ruler on Monday. Palestinians hope the visit will clinch a truce before a threatened Israeli assault on Rafah, a border city where about half the Gaza Strip population is sheltering. The ceasefire offer, delivered to Hamas last week by Qatari and Egyptian mediators, awaits a reply from militants who say they want more guarantees it will bring an end to the four-month-old war. Brent crude futures were down 2 cents at $77.97 a barrel as of 00:01 GMT, while U.S. West Texas Intermediate cr...