Saudi Arabia and other OPEC members are considering cutting oil production earlier than next month, The Wall Street Journal reported Monday, citing sources familiar with the matter.

On Monday, oil prices plunged below zero for the first time in history and traded as low as -$40 per barrel, prompting the kingdom to consider lowering production as soon as possible, instead of waiting until next month when the agreement between Saudi Arabia and Russia is set to begin, according to the report.

Just over a week ago, OPEC agreed on historic production cuts set to begin in May, ending a price war that had erupted between Saudi Arabia and Russia. The threat of production being increased to record levels weighed on prices as the coronavirus pandemic tanked global demand for oil.

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Saudia Arabia could begin cutting production immediately under a proposal being considered, if it aligns with the kingdom's legal obligations and agreed upon deliveries, according to The Journal. The proposal could be applied to other OPEC countries, the report said.

Oil fell into negative territory to a record low Monday as traders worried about a supply glut, and sellers looked to offload extra barrels, effectively paying people to take it off their hands. Prices were also weighed down by futures contracts expiring Tuesday, sending oil lower as traders exited the positions. If concerns about storage continue as demand remains low, oil prices could see further volatility.