Not that long ago, it was hard to say that Calumet Specialty Products Partners (NASDAQ: CLMT) was a worthwhile investment. Investors simply couldn’t trust management to make the right decisions after years of poor capital allocation and a lack of focus on operations. With new management in charge and a turnaround plan in place, though, Calumet’s trajectory looks to be back on the right path. This most recent quarter’s results was a confirmation that this new plan is working.