West Texas Intermediate crude swung between gains and losses before data that may signal strength in the economy in the U.S., the world’s biggest oil consumer. Brent was steady in London. Futures were little changed in New York , poised for a second weekly decline. Payrolls probably rose by 215,000 in May, a Bloomberg News survey shows before a Labor Department report today. That compares with a 288,000 increase in April. Production in Libya , a member of the Organization of Petroleum Exporting Countries, was stable at 171,000 barrels a day as of yesterday, according to National Oil Corp. “Today’s most important economic key number will be this afternoon’s U.S. employment status with the nonfarm payroll and unemployment rate data,” Michael Poulsen, an analyst at Global Risk Management Ltd. in Middelfart, Denmark , said in a report. “Expect volatility in the market around these numbers.” WTI for July delivery […]