Oil prices hit the skids on Monday after Iran and six
world powers sealed a deal curbing its nuclear program.
While Iran will not be allowed to increase its oil sales for six
months, any easing of Middle East tensions tends to lead to lower crude
Brent crude oil shed $2.89 to $108.16 a barrel, its biggest daily
drop in a month. U.S. oil lost $1.37 to $93.47 a barrel.