By Claudia Assis and Nick Godt, MarketWatch SAN FRANCISCO (MarketWatch) — Crude-oil futures ended 4.4% higher Monday, lifted by hopes that European leaders will agree on how to tackle the euro zone’s sovereign-debt crisis, and after Chinese economic data pointed to growth in manufacturing. Crude for December delivery /quotes/zigman/2084377 CL1Z +0.20% gained $3.87 to...



