LONDON—Oil prices tumbled more than $1 a barrel on Tuesday, after a strong rally in the previous session as worries about the global economic growth outweighed Saudi Arabia’s pledge to deepen output cuts.
Brent crude futures were down $1.33, or 1.73 percent, to $75.38 a barrel by 0923 GMT. U.S. West Texas Intermediate crude fell $1.39, or 1.93 percent, to $70.76 a barrel.