LONDON: Oil fell around 2 percent on Friday and was on track for a second weekly decline, pressured by concern about weakening demand in China and further interest rate rises by the US Federal Reserve. As part of the rout, the market structure of both oil benchmarks shifted in ways that reflect dwindling supply concerns. Crude had come close to all-time highs earlier this year as Russia’s invasion of Ukraine added to those concerns. China, which sources say is looking to slow crude imports from some exporters, has seen a rise in COVID-19 cases, while hopes for the moderation of aggressive US rate hikes have been dented by remarks from some Fed officials this week. “As things stand, bullish price drivers are in short supply,” Stephen Brennock of oil broker PVM said. “Yet with the EU embargo on Russian crude less than three weeks away, oil prices could still end the year with a bang.” Brent crude was down $1.80, or 2 percent, at $87.98 a barrel by 1325 GMT, having touched $87.86 earlier, the lowest since Oct. 3. US West Texas Intermediate (WTI) crude was down $1.52 or 1.9 percent at $80.12. Both benchmarks are heading for a second weekly loss. Brent is on track for a decline of more than 8 percent, while WTI is down about 10 percent. In a sign of easing concern about supply, the nearby WTI contract moved to a discount to the second month , a structure known as contango, for the first time since 2021, according to Refinitiv Eikon data. Brent was still in the opposite structure, backwardation, although the premium of nearby Brent over barrels loading in six months fell as low as $3.24 a barrel, the lowest since April. Recession concerns have dominated this week even with the EU"s ban on Russian crude looming on Dec. 5 and the Organization of the Petroleum Exporting Countries and allies, together known as OPEC+, tightening supply. “On the demand side, there are concerns about an economic slowdown,” said Naeem Aslam of Avatrade. “The path of the least resistance seems skewed to the downside.” The Fed is expected to raise rates by a smaller 50 basis points (bps) at its Dec. 13-14 policy meeting after four consecutive 75 bp hikes, according to a Reuters poll. OPEC+, which began a new round of supply cuts in November, holds a policy meeting on Dec. 4.