U.S. benchmark West Texas intermediate (WTI) crude futures were up 23 cents to $54.00 at 0746 GMT. Brent front-month March crude oil futures rose 31 cents to $57.16.

U.S. light crude was down 20 cents at $53.86 by 0930 GMT (4:30 a.m. ET), while North Sea Brent crude was up 5 cents at $56.27 a barrel.

The analysts predicting that Brent will average $58 a barrel next year expect $53 in the first quarter and $56 in the second. West Texas Intermediate will be about $1.40 cheaper than Brent in 2017, the estimates show. WTI settled at $53.90 in New York on Tuesday.

International Brent LCOc1 crude futures were trading down 7 cents, or 0.12 percent, at $56.02 a barrel at 0722 GMT (2.22 a.m. ET) after closing the previous session up 93 cents. U.S. benchmark West Texas Intermediate (WTI) crude oil prices CLc1 were down 8 cents at $53.82 per barrel after settling up 88 cents at $53.90 a barrel in the previous session.

London Brent crude for February delivery LCOc1 was down 1 cents at $55.15 a barrel by 0335 GMT (10.35 p.m. ET) after settling up 11 cents on Friday. Oil markets were closed on Monday after Christmas at the weekend. NYMEX crude for February delivery CLc1 was up 10 cents at $53.12 a barrel, after closing at a 17-month high on Friday.

Benchmark Brent crude oil futures LCOc1 were trading up 56 cents, or 1 percent, at $55.48 a barrel at 1329 GMT. U.S. West Texas Intermediate (WTI) crude futures CLc1 were up 29 cents at $52.41 a barrel, not far off a one-week high of $52.52.

Brent crude futures were trading at $54.02 per barrel at 0808 GMT, flat from its last settlement. U.S. West Texas Intermediate (WTI) crude was down 2 cents at $50.88 per barrel.

International Brent crude futures were down 58 cents at $55.14 per barrel at 1054 GMT. U.S. West Texas Intermediate (WTI) crude oil futures were down 61 cents at $52.37 a barrel.

Brent crude, the global oil benchmark, rose 4.27% to $56.67 a barrel on London’s ICE Futures exchange. On the New York Mercantile Exchange, West Texas Intermediate futures were trading up 4.80% at $53.95 a barrel.

Brent crude for February delivery LCOc1 was up 12 cents at $54.01 a barrel by 0752 GMT, after rising 1.7 percent on Thursday. The contract hit its highest since July 2015 at $55.33 on Monday. U.S. crude for January delivery CLc1 was up 32 cents at $51.16 a barrel. Both contracts have lost nearly 1 percent so far this week.