Investing.com - Oil prices continued to tumble on Monday as investors weighed the possibility of the Organization of Petroleum Exporting Countries and Russia ceasing curbs on production levels, while increasing U.S. shale output also dampened sentiment.
New York-traded West Texas Intermediate crude futures fell $1.29, or about 1.8%, to $66.64 a barrel by 10:21AM ET (14:21GMT).
Meanwhile, Brent crude futures, the benchmark for oil prices outside the U.S., lost 96 cents, or roughly 1.3%, to $75.48 a barrel.
OPEC and Russia were reported last week to consider lifting production to meet shortfalls from Iran and Venezuela, while Russian energy minister Alexander Novak said Saturday that a return to oil production levels that were in place in October 2016, the baseline for the current deal to cut output, was one of the options being discussed.
The Organization of the Petroleum Exporting Countries and non-OPEC producers led by Russia have been curbing output by about 1.8 million barrels per day (bpd) to prop up oil prices and reduce high global oil stocks. The pact began in January 2017 and is set to expire at the end of 2018.
Novak stipulated that any decision would be made at the meetings of OPEC and non-OPEC countries in Vienna on June 22-23.
Also weighing on crude prices, the latest weekly data on U.S. drilling showed that production continued to escalate. U.S. drillers added 15 oil rigs last week, bringing the total count to 859, the highest number since March 2015, underscoring worries about rising U.S. output.
Domestic oil production - driven by shale extraction - has already surged by more than 27% in the last two years, to an all-time high of 10.73 million barrels per day, leaving the U.S. close on the heels of Russia’s leading 11 million bpd.
In other energy trading, gasoline futures fell 1.8% to $2.1356 a gallon by 10:23AM ET (14:23GMT), while heating oil slid 1.1% to $2.1816 a gallon.
Lastly, natural gas futures rose 1.0% to $2.993 per million British thermal units.