Crude prices in the US plummeted on the last trading day of September due to concerns about the world’s future.

Long oil also performed well this month and quarter due to supply chokes by Saudi Arabia and Russia. WTI crude fell 92 cents to $90.79 per barrel, while Brent closed at $92.20.

Oil prices have risen $25-30 since May, driven by collective production squeezes of at least 1.3 million barrels per day.

The Saudis and Russians, along with OPEC+, have benefitted from tacit coordination on U.S. oil supply.

Antitrust laws prohibit U.S. energy companies from participating in OPEC-like schemes that violate free-market competition.

International demand for U.S. oil has surged, reducing inventory at Cushing, Oklahoma.