West Texas Intermediate moves back about the $50 threshold.
Brent crude oil prices were up more than 2.5 percent in early Monday trading to around $56.40 per barrel. Brent see-sawed last week as the market weighed the prospects of more available Iranian crude oil as a result of nuclear negotiations in Switzerland.
21:31 Time Warner jumps after hours on report it could sell for $110 per share to AT&T
18:04 US stocks hold higher after release of Fed's Beige Book; energy rises 2%
12:47 U.S. housing starts tumble on weak multi-family construction activity
17:06 Harley-Davidson says laid off temp workers last quarter