US equity futures were flat ahead of Tuesday's opening bell as traders digested a batch of economic data, including the monthly retail sales report.

Dow Jones Industrial Average futures were down 0.1%, S&P 500 futures were 0.1% lower, and Nasdaq futures were flat.

Oil prices were higher, with front-month global benchmark North Sea Brent crude up 0.6% at $69.46 per barrel and US West Texas Intermediate crude 0.4% higher at $64.63 per barrel.

The December retail sales bulletin, released at 8:30 am ET, came in flat after a 0.6% increase in the previous month, compared with estimates compiled by Bloomberg for a 0.4% gain. The Q4 employment cost index gained 0.7%, coming in below estimates for a 0.8% gain. Import prices gained 0.1% in December, while export prices increased 0.3%.

The November business inventories report, due at 10 am ET, is expected to show a 0.2% increase following a 0.3% gain in the previous month.

In other world markets, Japan's Nikkei closed 2.3% higher, Hong Kong's Hang Seng ended 0.6% higher, and China's Shanghai Composite finished 0.1% higher. Meanwhile, the UK's FTSE 100 was down 0.5%, and Germany's DAX index was 0.2% lower in Europe's early afternoon session.

In equities, Spotify Technology (SPOT) stock was up 12% after the company reported higher Q4 financial results. Credo Technology Group (CRDO) shares were 15% higher after the company said late Monday it expects to report fiscal Q3 revenue above its previously issued guidance range.

On the losing side, Upwork (UPWK) stock was down nearly 22% after the company issued Q1 guidance that trailed analysts' projections.