I think maybe because of several factors that lead to oil price hike.

OPEC+ sticks with supply cuts as West tightens sanctions on Russian oil.
https://edition.cnn.com/2022/12/04/energy/opec-production-oil-prices/index.html

Russia May Cut Oil Output in Response to G-7 Price Cap, Putin Says
https://www.bloomberg.com/news/articles/2022-12-09/russia-may-cut-oil-output-in-response-to-price-cap-putin-says

U.S. Oil Prices Under Pressure From Keystone Pipeline’s Largest-Ever Leak
https://www.wsj.com/articles/u-s-oil-prices-under-pressure-from-keystone-pipelines-largest-ever-leak-11671051020

Morgan Stanley sees Brent crude oil back at around US$110/bbl by mid-2023
https://www.theedgemarkets.com/article/morgan-stanley-sees-brent-crude-oil-back-around-us110bbl-mid2023

Oil prices largely unchanged amid demand hopes, interest rate hike
https://www.reuters.com/markets/commodities/oil-prices-largely-unchanged-amid-demand-hopes-interest-rate-hike-2022-12-15/

IEA raises oil demand growth forecast for 2022 and 2023
https://www.thenationalnews.com/business/2022/12/14/iea-raises-oil-demand-growth-forecast-for-2022-and-2023/