Brent was down 73 cents, or 3.42%, at $20.60 per barrel, WTI fell by 84 cents, or 5.09%, to $15.66 a barrel

Energy prices overall (which also include natural gas and coal) are expected to average 40 percent lower in 2020 but see a sizeable rebound in 2021.

Brent was up $1.60, or 7.8%, at $21.97 per barrel, WTI rose $1.74, or 12.6%, at $15.52 a barrel.

The Argentinian government plans to set a minimum oil reference price for local producers at US$45/bbl,

Brent crude touched $15.98 a barrel, WTI was down 51 cents, or 4.4%, at $11.06 a barrel.

Monday's unprecedented meltdown in oil prices, with front-month NYMEX WTI futures diving deep into negative territory as Tuesday's expiry of the May contract neared, was the exclamation point on what many OPEC+ delegates have described as an alarming and depressing ride.

Brent crude for was down 48 cents, or 1.9%, at $25.09 per barrel, WTI was up $38.99 in thin trade at $1.36 a barrel

NYMEX May WTI settled at minus $37.63/b, down $55.90 from Friday.

Brent was down $1.12, or 4%, at $26.96 a barrel, WTI fell $4.79, or 26.2%, to its lowest since March 1999 at $13.48,

Spot gold was down 0.2% to $1,680.46 per ounce