In oil's continuous slide since October, all signs say made in the USA

The downward spiral in oil prices is accelerating as a surge in crude production from a turbocharged US petroleum industry runs into weaker global economic growth.
 
Crude prices slid 7.7 per cent on Friday, their largest one-day drop since July 2015, and are now down by nearly a third since the start of October. The US benchmark, West Texas Intermediate futures, closed at $50.42 a barrel—its lowest level in over a year.
 
As economic growth outside the US has flagged, producers and traders are beginning to worry that demand for crude will also decline. In export-dependent Germany, a purchasing managers index hit a four-year low, well below the level economists were expecting. The steepness of the drop has prompted Saudi Arabia and the Organization of the Petroleum Exporting Countries to consider a plan to quietly cut production to bolster prices, according to people familiar with the matter.
 
The idea would see the cartel retain the official output targets it set in 2016. But, because Saudi Arabia is overshooting those targets by nearly 1 million barrels a day, it would effectively be a cut. Such a move may help support prices without raising the ire of President Trump, who has been calling on OPEC to keep prices lower.
 
Investors remain skeptical that the OPEC meeting in Vienna on Dec. 6 will be able to turn the tide on oil supply enough to support prices. A big reason why: the emergence of the US oil industry as one of the world’s most important players. Ballooning shale production—American output has nearly doubled since the start of 2012—has made the US a key supplier and exacerbated worries about a global glut of crude.
 
“I never thought I would hear these kinds of numbers coming out of the US,” said Bob Yawger, director of the futures division at Mizuho Securities USA. “This is going to force OPEC’s hand.”

This summer, the US surpassed Saudi Arabia and Russia as the largest crude-oil producer—a title it hadn’t held since 1973, according to the International Energy Agency. Monthly output in the US was a record 11.65 million barrels a day in September and nearly the same amount in October, according to energy consulting firm Wood Mackenzie, while Saudi Arabia’s supply was nearly 11 million barrels a day last month and Russian production stood at 11.4 million a day.
 
“It used to be the world was divided into OPEC and non-OPEC,” said Daniel Yergin, vice chairman of IHS Markit, which projects the US will be a net exporter of petroleum in the early 2020s. “Now it’s the world of the big three.”
 
In recent weeks, that has been reflected in a bumper amount of oil in storage. US crude stockpiles have climbed for nine consecutive weeks. Inventories advanced by 4.9 million barrels in the week ended Nov. 16, and rose more than 10 million barrels the week before, the largest one-week increase since February 2017.
 
Bottlenecks in getting oil out of the prolific Permian basin in Texas have led to a big divergence in the benchmark prices of oil.
 
The global benchmark, Brent crude, trades for roughly $9 more than West Texas Intermediate, which is harder to get to global markets. However, the US has continued to pump oil and many expect those hurdles to be cleared next year as new pipelines are built, unleashing even more crude on the rest of the world.
 
Uncertainty on the geopolitical front has also contributed to worries about oversupply.
 
Mr. Trump has signaled a willingness to look past the killing of a prominent US -based journalist in his relations with Saudi Arabia. And the US, after months touting strict enforcement of sanctions on Iran, granted more generous waivers than expected for eight governments to buy Iranian oil. This could lead to higher-than-expected supply from the Islamic Republic.
 
Saudi officials said Mr. Trump pressured their country into ramping up oil production to record levels ahead of the sanctions on Iran’s petroleum industry, the Journal has reported. “They are trying to be as cooperative with us as possible,” said Douglas Hepworth, chief operating officer at Gresham Investment Management LLC, a $7 billion commodities firm with about one-third of its assets in energy. “What triggered the whole thing was everybody in the world moving to full capacity to try and make the world safe for Iranian sanctions.”
 
The strength of global production now threatens to overwhelm demand. This could pressure OPEC and its allies such as Russia to cut back when the group meets next month in hopes of regaining more direct control of global supply.
 
Such a combination helped rein in the last oil price rout two years ago—defying skeptics who previously warned OPEC’s grip on world markets had slipped thanks to US shale. In 2016, the cartel teamed up with Russia and a group of like-minded, non-OPEC oil producers. They throttled back hard and stayed disciplined, slowly draining the world of the buildup of inventory that now is starting to slosh around the world again. The big question is whether they can pull off the same sort of deal now, and how long it might take to drain supply again.
 
Adding to the pressure on oil is a stronger US dollar. Since crude is priced in dollars, it becomes more expensive for foreign buyers when the US currency rises. On Nov. 12, the dollar jumped to its highest level since March 2017, bolstered by expectations of higher interest rates. This could start to hinder global demand, one of the initial drivers that underpinned the recovery in crude.
 
If the price of oil drops too far, too fast, that could also hurt US producers, especially in the shale patch. Most shale drillers now maintain they can break even at $50 or lower. But the falling prices have begun to eat into their profitability, and some may be forced to curtail spending next year and reduce ambitious growth plans if prices decline much more.
 
Mr. Trump has expressed hope that oil prices will fall lower in tweets and comments this week. His remarks have upset some shale drillers, who say continued drops could hurt the US fracking industry, and the Trump administration’s stated goals of American “energy dominance,” at a time when the country’s oil output is at all-time highs.
 
The US broadly is reaping benefits. Consumers are enjoying lower prices at the gasoline pump. Higher oil production helped the US lower its merchandise trade deficit by nearly $250 billion in 2017 from a decade earlier, according to a recent report from IHS Markit.
 
As the US has exported more oil and natural gas, the country’s energy trade balance swung into surplus in October, according to data from Bank of America Merrill Lynch.

 
Benoit Faucon and Summer Said contributed to this article