Bloomberg: Back in February 2015, the price of West Texas Intermediate stood at about $52 per barrel, half of its 2014 peak. I argued then that a renewed decline was coming that could drive it below $20, a scenario regarded by oil bulls as unthinkable. But prices did fall further, dropping all the way to a low of $26 in February. Since then, crude rallied to spend several weeks flirting with $50 per barrel, a level not seen since last year. But it won't last; I'm sticking to my call for prices to decline anew...