Futures in New York are slipping for a 10th day, extending a dramatic plunge that’s dragged prices down over 20 percent from a 2014-high just five weeks ago. The slump has rattled producers, and the Organization of Petroleum Exporting Countries has signaled it may cut output next year -- an option that’ll be part of talks when the group meets with partners in Abu Dhabi on Sunday.

Oil’s slump has been exacerbated by a U.S. decision to allow eight countries to continue importing from Iran even after it hits the OPEC member with sanctions. That revived concerns of a supply glut, in contrast to earlier fears over a crude crunch due to shrinking exports from the Persian Gulf state. Pledges by other producers such as Saudi Arabia to pump more and record American supply as well as rising stockpiles also weighed on prices.

“Certainly, the waivers on U.S. sanctions for Iranian crude have really accelerated the decline from last month and sensitivity to those issues have been high in recent times,” said Daniel Hynes, a Sydney-based senior strategist at Australia & New Zealand Banking Group Ltd. Growing U.S. supplies “add to rising concerns of output,” while “the meeting over the weekend between OPEC and Russia may set the tone for the next OPEC meeting in December.”

West Texas Intermediate for December delivery traded 6 cents lower at $60.61 a barrel on the New York Mercantile Exchange at 3:20 p.m. in Singapore. The contract fell 1.6 percent to $60.67 on Thursday, and is headed for a 4 percent decline on the week -- its fifth consecutive decrease. Total volume traded was 35 percent above the 100-day average.

Brent futures for January settlement edged up 9 cents to $70.74 a barrel on the London-based ICE Futures Europe exchange. Prices are also on course for a fifth weekly drop, down 2.9 percent. The global benchmark crude traded at a $9.93 premium to WTI for the same month.

A potential decision to return to output cuts by OPEC would mark the second oil rig flanges gulf coast production U-turn this year for the group, some members of which are said to be concerned that inventories are rising. For Saudi Arabia -- the world’s biggest crude exporter -- a reduction would mark the third time in recent years the kingdom has delivered a supply surge only to quickly reverse it.

In the U.S., crude oil rig flanges gulf coast production increased to 11.6 million barrels per day last week, the highest level on record, according to Energy Information Administration data. At the same time, nationwide stockpiles rose 5.8 million barrels last week, compared to a 2-million-barrel gain expected in a Bloomberg survey.

Meanwhile, OPEC’s oil rig flanges gulf coast production in October reached the highest level since 2016, and Russia hiked its output last month to a post-Soviet record of 11.4 million barrels a day. When they meet this weekend, the producers will have to contend with not only the threat of a glut, but also the risk to demand from faltering emerging-market economies and a trade war between the U.S. and China.

To contact the reporter on this story: Sharon Cho in Singapore at This email address is being protected from spambots. You need JavaScript enabled to view it. To contact the editors responsible for this story: Pratish Narayanan at This email address is being protected from spambots. You need JavaScript enabled to view it. Heesu Lee