Could you tell me my balance, please? <a href=" http://www.theeconomicinsight.com/about ">zithromax z-pak order online</a> The so-called Brent-WTI spread, which measures thedifference between international market North Sea Brent and WestTexas Intermediate oil at Cushing, Oklahoma, narrowed from morethan $23 a barrel in February to less than $10 a barrel in May.On Monday Brent-WTI traded around $3.50 a barrel. (Reporting by Nicolas Medina Mora Perez; Additional reportingby David Sheppard; Editing by Peter Galloway)