Brent were at $62.55 a barrel, WTI gained 13 cents, or 0.23%, to $56.62 a barrel.

Brent were down $1.05 cents at $62.05 a barrel, WTI dropped to $56.47 a barrel, down 82 cents.

Brent dropped 58 cents to $64.19 a barrel, WTI were at $58.15, down 49 cents.

Brent crude fell 30 cents to $63.98 a barrel, WTI was down 38 cents to $57.71.

Brent crude LCOc1 was up 7.7% since last Friday’s close, the biggest weekly rise since January. The front-month November contract was at $64.88 a barrel, up 48 cents, by 1113 GMT. U.S. West Texas Intermediate (WTI) crude futures CLc1 rose 59 cents to $58.72 a barrel, set to post a gain of over 7% for the week.

Brent gained $1.44 to $65.04 a barrel, WTI was up 89 cents at $59 a barrel.

Brent were down 75 cents, or 1.16%, at $63.80 a barrel, WTI were down $1.15, or 1.94%, at $58.19.

Brent was down 36 cents, or 0.5%, at $68.66 a barrel, and WTI was down 57 cents, or 0.9%, at $62.33 a barrel. Earlier, the crude benchmarks both fell by around 2%.

"Nobody has changed the parameters of the [OPEC+} deal. So, I think that we all agreed in Abu Dhabi, that everyone should fulfill their obligations," Novak said, when asked if Russia needs to continue to comply.

Conformity with the voluntary production adjustments remains high, 136% in the month of August. However, the JMMC reemphasized the core principles underpinning the DoC, namely, equity, fairness and transparency, and urged all participating countries to intensify their efforts in pursuit of full and timely conformity with their voluntary production adjustments.