Gold, silver surrender gains; crude oil prices rising.

Byline: G. Chandrashekhar

The global commodity markets displayed a mixed performance last week with a host of factors including geopolitical developments, macroeconomic data, currency gyrations and events in Greece held sway.

The crude oil market appeared to have broken free from a bout of range-bound trading of last few weeks following supply worries and severe winter conditions.

Metals suffered a carnage on Friday awhen the Greek pendulum swung back to the negative side' as one analyst put it.

Expectation that the Chinese monetary policy will continue to remain tight for some more time was not helpful either.

Gold and silver …