As costs decline, profit margins are widening despite a complete lack of pricing power.

虽然公司部门非常缺乏定价能力，但由于成本持续下降，利润率仍在上升。

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The company's operating margins have been increasing thanks to its widening proportion of software and services, he points out, along with a growing mainframe business and decreased spending on employee pensions.

FORBES: Earnings Analysis

The major reason these stocks have performed so well is that there is a glut of domestically produced oil that is pushing down the price refiners have to pay for their feedstock thus widening their margins.

FORBES: Buy The Dip In The Refiners