Benchmark oil was down 40 cents to $95.73 a barrel in electronic trading on the New York Mercantile Exchange. The contract fell 95 cents to settle at $96.13 in New York on Friday.
Brent crude was down 40 cents at $111.86 per barrel in London.
Traders brushed off China’s announcement Saturday that it plans to cut its bank reserve requirement by 0.5 percentage points. The move, the third reserve ratio cut since November, is designed to boost lending and spark economic growth.
However, investors are worried by signs that China’s economy is faltering. The government said Friday that industrial production growth in April slowed and electricity output was little changed.
Investors are also eyeing political turmoil in Greece, where political parties have been unable to form a government after elections earlier this month.
Some analysts say the recent oil price slump — crude is down more than 10 percent this month — isn’t being driven by global supply and demand fundamentals, but rather the old market adage about selling assets at the beginning of the summer months.
“There’s little to the latest price action than the increasingly self-fulfilling prophecy of ‘sell it in May and go away’, with broader macroeconomic concerns used as a lightening rod,” Barclays said in a report.
“U.S. oil demand is improving while Asian demand remains robust.”
In other energy trading, heating oil was steady at $2.96 per gallon and gasoline futures were little changed at $3.00 per gallon. Natural gas fell 1.6 cents at $2.49 per 1,000 cubic feet.