By Laila Kearney NEW YORK (Reuters) -Oil was up 2.5% on Friday after a U.S. official told Reuters that an immediate Saudi oil output boost was not expected, and as investors question whether OPEC has the room to significantly ramp up crude production. The comment during U.S. President Joe Biden’s Middle East visit comes at a time when spare capacity at members of the Organization of the Petroleum Exporting Countries (OPEC) is running low. “Part of the support (today) is that everybody and their brother who digs down into the Saudi situation see that they don’t have a lot of capacity left,” sai…