Oil dropped about two per cent from a two-month high as major world oil producers kept pumping out supply, causing investors to worry that several weeks of steady gains had pushed the rally too far, too fast.

Selling picked up in the late morning on Tuesday as oil broke below Monday’s lows, with more than 925,000 US futures contracts traded, making it the busiest day in the market in nearly three weeks.

OPEC production rose in July, a Reuters survey found Monday, despite a deal to cut output. That prompted selling after US oil futures had risen more than 16 per cent since late June.

“It seems to be more technical and a combination of that and the OPEC story has everybody running for exits at the same time,” said Phil Flynn, analyst at Price Futures Group in Chicago.

US inventory reports due on Tuesday and Wednesday are expected to show crude stocks fell by 2.9 million barrels last week, the fifth straight week of declines.

Brent crude, the international benchmark, settled down 94 cents, or 1.8 per cent, to $51.78 a barrel, while US crude ended down $1.01, or 2 per cent, to $49.16 a barrel.

“Momentum indicators have us in overbought territory over the last few days, which is telling you (oil) is going to pull back somewhat,” said Robert Yawger, director of energy futures at Mizuho Americas.

Petrol and heating oil crack spreads were stronger on Tuesday after Royal Dutch Shell said its Pernis refinery in the Netherlands, Europe’s largest oil refinery, will remain closed through mid-August following a fire.

Industry group the American Petroleum Institute (API) reports data on US inventories at 4:30 pm EDT (02:30 AEST). The US government’s official data is out on Wednesday.

On the demand side, forecasters including the International Energy Agency have been raising their estimates. Oil company BP said Tuesday it sees demand growing by 1.4 to 1.5 million barrels per day (bpd).

The Organisation of the Petroleum Exporting Countries, along with Russia and other non-members have agreed to reduce output by 1.8 million bpd from Jan. 1, 2017 until March next year to get rid of excess supply.

Oil output by OPEC rose last month by 90,000 bpd to a 2017 high, led by Libya, one of the exempt producers.

Extracted from Townsville Bulletin.