With the first half of the year officially in the books, investors have plenty of data and developments in the commodity world to talk about. With natural gas jolting back and forth and speculators calling tops and bottoms in crude oil and gold, it has certainly been a busy six months for commodity traders. One of the biggest sticking points for commodities was the speculation of QE3, which was eventually announced in the form of “Operation Twist”, which will likely shape prices for the latter half of the year. But when it comes to some of the best and worst performers from that time period, some of the results may surprise you. Below, we outline the three best and three worst commodity performances from the first half of 2012 [see also Jim Rogers Says: Buy Commodities Now, Or You’ll Hate Yourself Later].