REUTERS - Brent crude futures LCOc1, the international benchmark for oil prices, were at $76.79 per barrel at 0654 GMT, down 53 cents, or 0.7 percent, from their last close. U.S. West Texas Intermediate (WTI) crude futures CLc1 were down 38 cents, or 0.6 percent, at $65.57 a barrel.

REUTERS - Brent crude futures were at $78.22 per barrel at 0644 GMT, down 21 cents, or 0.3 percent, from their last close. U.S. West Texas Intermediate (WTI) crude futures were at $71.03 a barrel, down 28 cents, or 0.4 percent, from their last settlement.

REUTERS - Brent crude LCOc1 rose 78 cents to $76.16 a barrel by 0645 GMT after dropping to its lowest since May 8 on Tuesday. U.S. West Texas Intermediate (WTI) crude futures CLc1 were up 33 cents at $65.85 a barrel, having touched a near two-month low on Tuesday.

REUTERS - International Brent crude oil futures LCOc1 were at $59.68 per barrel at 0742 GMT, up 17 cents, or 0.3 percent, from their last close. U.S. West Texas Intermediate (WTI) crude futures CLc1 were at 51.41, down 4 cents.

REUTERS - U.S. West Texas Intermediate crude CLc1 lost 16 cents, or 0.2 percent, to $66.88 a barrel by 0423 GMT, after falling almost 2 percent on Thursday. Global benchmark Brent crude LCOc1, which was little changed in the previous session, was down 9 cents, or 0.1 percent, to $77.47 per barrel.

REUTERS - Yet by 0649 GMT, U.S. West Texas Intermediate (WTI) crude futures were up 16 cents, or 0.2 percent, from their last settlement at $73.10 per barrel. Brent crude futures LCOc1 were down 7 cents, or 0.1 percent, at $77.32.

REUTERS - Brent crude futures LCOc1 were at $78.63 per barrel at 0534 GMT, down 16 cents from their last close, and more than 2.2 percent below the $80.50 multi-year high they reached on May 17. Brent broke through $80 for the first time in more than three years earlier in May. U.S. West Texas Intermediate (WTI) crude futures were at $70.60 a barrel, down 11 cents from their last settlement.

Brent was up $1.55, or 2.66%, at $59.81 a barrel, West Texas Intermediate futures CLc1 gained $1.56, or 2.66%, to $55.50 a barrel.

REUTERS - Brent LCOc1 futures fell 43 cents, or 0.5 percent, to $79.14 a barrel by 0218 GMT, after climbing 35 cents on Tuesday. Last week, the global benchmark hit $80.50 a barrel, the highest since November 2014. U.S. West Texas Intermediate (WTI) crude CLc1 futures eased 25 cents, or 0.4 percent, to $71.95 a barrel, having climbed on Tuesday to $72.83 a barrel, the highest since November 2014.

Brent crude futures were at $57.80 a barrel by 0854 GMT, up 42 cents from their previous settlement. West Texas Intermediate (WTI) futures were at $52.80 per barrel, up 26 cents.

Brent crude had rebounded to $57.81 a barrel, up $1.58, or 2.81%, from its last close by 0634 GMT, while U.S. West Texas Intermediate (WTI) crude futures jumped $1.61, or 3.15%, to $52.70 a barrel.

Brent crude futures were at $57.80 a barrel by 0854 GMT, up 42 cents from their previous settlement. West Texas Intermediate (WTI) futures were at $52.80 per barrel, up 26 cents.

Brent crude futures LCOc1 climbed 59 cents, or 1.0%, to $60.10 a barrel by 0652 GMT. West Texas Intermediate (WTI) crude futures CLc1 gained 70 cents, or 1.3%, to $55.63 a barrel.

International benchmark Brent crude futures were at $58.16 a barrel by 0829 GMT, down 37 cents from their previous settlement. U.S. West Texas Intermediate (WTI) futures were at $53.89 per barrel, down 61 cents from their last close.

International benchmark Brent futures LCOc1 were up 28 cents at $60.09 a barrel by 0910 GMT, having dipped earlier in the session to their lowest since Jan. 14 at $59.07. West Texas Intermediate crude CLc1 futures rose 38 cents to $55.07 per barrel.

REUTERS - Brent crude futures LCOc1 were at $79.57 per barrel at 0310 GMT, up 27 cents, or 0.3 percent from their last close. Brent broke through $80 for the first time since November 2014 on Thursday. U.S. West Texas Intermediate (WTI) crude futures were at $71.62 a barrel, up 13 cents, or 0.2 percent, from their last settlement.

REUTERS - International Brent crude oil futures LCOc1 were at $60.68 per barrel at 0703 GMT, 4 cents above their last close. U.S. West Texas Intermediate (WTI) crude futures CLc1 were up 2 cents from their last settlement, at $52.13 a barrel.

REUTERS - U.S. West Texas Intermediate (WTI) crude futures CLc1 were at $52.36 per barrel at 0748 GMT, up 80 cents, or 1.6 percent from their last settlement. International Brent crude oil futures LCOc1 were up 89 cents, or 1.5 percent, at $61.10 per barrel.

REUTERS - Brent crude futures were at $79.06 per barrel at 0650 GMT, up 55 cents, or 0.7 percent, from their last close. Brent broke through $80 for the first time since November 2014 last week. U.S. West Texas Intermediate (WTI) crude futures were at $71.71 a barrel, up 43 cents, or 0.6 percent, from their last settlement.

REUTERS - International Brent crude oil futures LCOc1 were at $60.87 per barrel at 0508 GMT, down $1.21, or 2 percent, from their last close. U.S. West Texas Intermediate (WTI) crude futures CLc1 were at $52.33 per barrel, down 92 cents, or 1.7 percent.