Stock futures climbed on Tuesday morning as crude oil made a slight rebound after Monday's selloff. 

S&P 500 futures added 0.48%, Dow Jones Industrial Average futures gained 0.54%, and Nasdaq futures rose 0.53%.

Crude oil prices were under pressure earlier in the week over fears about international demand triggered by new signs of China's economic weakness. West Texas Intermediate crude oil attempted to gain a level above $37 a barrel again, climbing 0.4% to $36.94 on Tuesday morning. 

Market activity looks to be quieter than normal in low-volume trading during the holiday season. The number of shares traded on the S&P 500 in the past several sessions reached just a fraction of its three-month daily average of nearly 700 million. Markets will be closed on Friday for New Year's Day.

The economic calendar in the U.S. on Tuesday is fairly empty, with the S&P Case-Shiller home price index at 9 a.m. and the Conference Board's consumer confidence index at 10 a.m.

Icahn Enterprises (IEP) - Get Report has stepped in with a higher offer after Pep Boys (PBY) - Get Report agreed to accept Bridgestone's previous proposal. Activist investor Carl Icahn and  Bridgestone have upped recent bids for the auto shop chain to secure a deal. Pep Boys said the latest offer of $18.50 a share from Icahn Enterprises was a "superior proposal" to Bridgestone's bid. 

Dunkin' Brands (DNKN) - Get Report shares were on watch after the company announced a new partnership with Madison Square Garden (MSG) - Get Report . As part of the deal, the Dunkin' Donuts brand will have significant ad space during Knicks, Rangers and Liberty games and will also become the official coffee of the three teams. 

FedEx (FDX) - Get Report has responded to its weak performance over Christmas that resulted in a number of late deliveries, noting that both severe weather and an "unprecedented surge" of last-minute purchases were to blame. The delivery service contended with severe weather interruptions, particularly at its major air hub in Memphis. FedEx ran extra shifts on Christmas Day to clear the delivery backlog.

Valeant Pharmaceuticals (VRX) climbed more than 2% in premarket trading after appointing three executives to temporarily take over for its CEO, Michael Pearson, who was hospitalized with pneumonia last week. Valeant has faced pushback for its drug price hikes and link to a pharmacy that pushed name-brand drugs.