The top oil-producing company in Alaska is planning significant layoffs, it announced last week.

In a series of statements, the oil giant ConocoPhillips said it will be firing between 20% and 25% of its global workforce of about 13,000 people. That would mean between 2,600 and 3,250 layoffs worldwide.

“We are always looking at how we can be more efficient with the resources we have. As part of this process, we have informed employees that…