KEY POINTS
  • The fallout between OPEC kingpin Saudi Arabia and non-OPEC leader Russia has kickstarted an oil price war, with crude futures on track to register their biggest daily rout since the first Gulf War in 1991.
  • International benchmark Brent crude traded off lows at $37.24 Monday afternoon, still down more than 17%, while U.S. West Texas Intermediate (WTI) stood at $34.55, around 16% lower.
  • Brent futures were down more than 30% at one stage in the session, before paring some of their losses.
  • "By Saudi Arabia actually now declaring war, they are front-running the Russians in declaring war on U.S. shale," Johannes Benigni, chairman and founder of JBC Energy Group, told CNBC on Monday.

An all-out oil price war has created an "unprecedented" situation in energy markets, analysts told CNBC Monday, with traders impatiently waiting to see which of the world's largest oil producers will blink first.

It comes after OPEC and non-OPEC allies, sometimes referred to as OPEC+, failed to agree on the terms of deeper supply cuts late last week.