Miners have run into more prpfit taking following very weak US jobs numbers. Rio Tinto, BHP Billiton and Anglo American lead the sector lower on fears that the US economy is struggling to turn around.US job losses showed unemployment rising to 9.5%, while the number of people losing their jobs rose to 467,000.Petrofac is one of the few risers on the award of a gas compression project worth in excess of $350m from Petroleum Development Oman. FTSE 100 - RisersFriends Provident Group (FP.) 68.68p +1.04%Diageo (DGE) 900.50p +0.39%Petrofac Ltd (PFC) 681.50p +0.29%FTSE 100 - FallersWPP Group (WPP) 384.25p -7.07%Rio Tinto (RIO) 2,033.00p -5.79%Anglo American (AAL) 1,729.50p -5.62%3i Group (III) 228.00p -5.39%Antofagasta (ANTO) 593.00p -5.04%BHP Billiton (BLT) 1,358.50p -4.67%Schroders (SDR) 812.50p -4.58%Lonmin (LMI) 1,163.00p -4.52%Fresnillo (FRES) 514.50p -4.46%London Stock Exchange Group (LSE) 672.50p -4.20%