U.S. stock futures rose in early European trade, as markets stabilized after reacting sharply to the Federal Reserve's rate meeting Wednesday.

Despite holding rates, analysts worry that Chairman Kevin Warsh is unwilling to deliver a rate hike to control inflation. With the added impetus of higher oil prices, the U.S. 30-year Treasury yields hit a 19-year high.

Oil prices continued to rise after the U.S. retaliated against surprise Iranian attacks earlier this week, further knocking hopes of a near-term reopening of the Strait of Hormuz.

Tech stocks largely steadied after days of heavy selling, with results from Korean memory-chip maker Samsung Electronics encouraging investors that the artificial-intelligence boom has longer to run. Nasdaq futures rose by 0.3%, leading U.S. equity indexes higher.

For the day ahead, U.S. growth and inflation data will be top of investors' minds, while the Bank of England will report its own policy decision. Apple and Amazon will report earnings after the bell.

--Oil prices extended the previous session's gains after U.S. forces launched strikes against Iran in response to Tuesday's surprise attack in Jordan. In early European trading, the front-month Brent crude contract rose 1.8% to $92.42 a barrel, while WTI futures were up 1% to $85.29 a barrel. Meanwhile, U.S. crude stocks fell by 7.2 million barrels last week, a much larger decline than the 600,000 barrels analysts expected, underscoring tightening physical supply. Flows through the Strait of Hormuz remain severely curtailed, while Houthi threats in the Red Sea continue to keep the geopolitical risk premium high.

--In the U.S., futures for the S&P 500 and the Dow Jones Industrial Average both climbed by 0.2%. Nasdaq futures were up 0.3%, though shares in Meta Platforms tumbled by over 8% in after-hours trade after investors reacted negatively to the Facebook-owner's latest earnings.

--Stocks in Asia were mixed as Japan's Nikkei 225 index climbed 0.7%, and Hong Kong's Hang Seng climbed 0.2%, whereas China's benchmark Shanghai Composite declined 0.6%. South Korean chip stocks led declines, with the Kospi falling 1.2%. SK Hynix shares fell more than 6% and Samsung Electronics reversing earlier gains to trade 0.7% lower, despite reporting a 14-fold surge in second-quarter net profit.

--European stocks were mixed in early trade. The Europe-wide Stoxx 600 nudged up 0.1%. London's FTSE 100 slipped 0.1% as software stocks fell back after gains Wednesday, while Rentokil lost 15% after earnings. The German DAX was down 0.3%. Adidas tumbled 16% after raising its marketing spend. In Paris, the CAC 40 gained 0.6% as construction and materials stocks rally, with Vinci up 5.6% after posting earnings. Italy's FTSE MIB slipped 0.1%, while the Spanish IBEX 35 added 0.6%. The Dutch AEX rose 0.45% as ASML--up 1.3%--steadied after heavy selling in recent sessions.

--The dollar recovered after reaching a one-week low Wednesday following the Federal Reserve's decision to keep interest rates unchanged. The dollar was also hit by the Fed chairman sidestepping questions about how he intends to achieve the 2% inflation target, Commerzbank's Michael Pfister said. However, the market still expects a rate rise by year-end as U.S.-Iran strikes lifts oil prices while the dollar benefited from its safe-haven role. The DXY dollar rose 0.1% to 101.004 after reaching a low of 100.762 Wednesday.

--The U.S. 30-year Treasury yield hit a 19-year high of 5.237% in Asian trading as yields jump across maturities. Short-end Treasury yields closed lower on Wednesday following the Federal Reserve's "hawkish hold," while long-end yields ended the session higher, featuring a steepening pattern. The steepening continues in Asian hours, with long-end yields rising more than short-end yields. The two-year Treasury yield was up 4.9 basis points at 4.283%, while the 10-year yield was up 7.8 basis points at 4.699%.

--Eurozone government bond yields rose, with the 30-year German Bund yield hitting a two-month high. "Looking at the market's reaction [to the Fed's press conference], the conclusion was that the Fed was not going to be as tough on fighting inflation as initially thought," ING's Chris Turner said in a note. The 30-year German Bund yield rose as high as 3.687%, LSEG data show. The 10-year Bund yield rose 3.2 basis points to 3.188%.

--Bitcoin rose 0.7% to $63,920.

--In early trading, New York gold futures were up 0.1% to $4,039 a troy ounce.