© Reuters. FILE PHOTO: Oil pump jacks are seen at the Vaca Muerta shale oil and gas deposit in the Patagonian province of Neuquen, Argentina, January 21, 2019. REUTERS/Agustin Marcarian/File Photo

By Paul Carsten

LONDON (Reuters) -Oil prices dipped on Monday as worries persisted around crude oversupply despite OPEC+ cuts and softer fuel demand growth next year.

futures fell 43 cents to $75.41 a barrel by 1221 GMT. U.S. West Texas Intermediate crude futures were down 47 cents at $70.76.

Both contracts jumped more than 2% on Friday but were down for a seventh straight week, their longest streak of weekly declines since 2018, on lingering oversupply concerns.

“There is little doubt that the oil complex remains in a state of vulnerability,” oil broker PVM’s John Evans said in a note on Monday.

Despite a pledge by the OPEC+ group, which comprises the Organization of the Petroleum Exporting Countries (OPEC) and allies including Russia, to cut 2.2 million barrels per day (bpd) of production in the first quarter, investors remain sceptical about compliance.

Output growth in non-OPEC countries is expected to lead to excess supply next year.

RBC Capital Markets expects stock draws of 700,000 bpd in the first half, but only 140,000 bpd for the full year.

“Prices will remain volatile and directionless until the market sees clear data points pertaining to the voluntary output cuts,” RBC analysts said in a note.

With cuts not implemented until next month, oil faces a volatile two months before clarity from any quantifiable compliance data, the analysts said.

The latest consumer price index data from China, the world’s biggest oil importer, showed rising deflationary pressures as weak domestic demand cast doubt over the country’s economic recovery.

Chinese officials on Friday pledged to spur domestic demand and consolidate and enhance the economic recovery in 2024.

This week investors are watching for guidance on interest rate policies from meetings at five central banks, including the U.S. Federal Reserve, as well as U.S. inflation data to assess the potential impact on the global economy and oil demand.

Recent price weakness drew demand from the United States, which has sought up to 3 million barrels of crude for the Strategic Petroleum Reserve (SPR) in March 2024.

“We know the Biden Administration is in the market looking to refill the SPR, which will provide support,” IG analyst Tony Sycamore said in a note, adding that prices were also being supported by technical chart indicators.

In the longer term for crude, U.N. Secretary-General Antonio Guterres on Monday said that one key to success of the COP28 climate summit was for nations to reach agreement on the need to phase out fossil fuels, though his comments met with resistance from OPEC.