An advance in oil prices led to a decline in stock markets, primarily driven by concerns that higher energy costs could trigger further interest rate hikes. Brent crude, the international benchmark, neared $100 a barrel before paring some of its gains. This surge in oil prices followed reports of attacks halting operations at several energy facilities in southern Saudi Arabia.

The S&P 500 experienced its second consecutive day of declines, even as a strong performance from chipmakers provided some counter-balance. Meanwhile, money markets are currently pricing in an over 50% probability of the Federal Reserve implementing another interest rate increase this month. This comes just days before the release of key inflation data, which is expected to heavily influence the Fed's decision-making.

Overall, the market sentiment is largely dominated by the interplay between rising oil prices, the specter of inflation, and the potential for tighter monetary policy from central banks globally. This environment is creating a period of consolidation and caution among investors, as they await further clarity on economic indicators and central bank actions.