On the first day of March, oil quotes began to decline after the release of data from the American Petroleum Institute (API) on another increase in fuel reserves in the United States. The price of Brent crude oil fell from the level of $84.10 to $82.70 per barrel. North American WTI oil shows similar dynamics: a decline to $76.20 after yesterday's growth to $77.65 per barrel. According to API statistics, crude oil inventories in the United States increased by 6.2 million barrels last week. Today, we should pay attention to similar data from the US Department of Energy. Analysts assume that the official report will indicate an increase in reserves by about 500 thousand barrels. Yesterday, oil showed strengthening amid optimism about the recovery of the Chinese economy. In particular, the Purchasing managers' Index (PMI) in the processing industry of China rose in February to 52.6 points (from 50.1 points a month earlier), reaching a record high since 2012. Analysts on average expected a more moderate increase, up to 50.5 points. The PMI of the service sector in February rose to 56.3 points from 54.4 points in January. The indicator has updated the maximum since March 2021.