Fortune 500 list has 2 Louisiana-based businesses

The big picture: Fortune ranks companies based on annual revenue. These are the Louisiana companies on the lists.

• Lumen Technologies (No. 292) is a telecommunications company based in Monroe. It has 28,000 employees.
• Entergy (No. 339) is the power utility based in New Orleans. It has 12,177 employees.
• Pool Corp. (No. 596) is a distributor of swimming pool supplies, equipment and outdoor products. It's headquartered in Covington and has 6,100 employees.

Between the lines: All three companies fell at least 30 spots compared to their ranking last year.

State of play: Walmart, headquartered in Arkansas, retained its top spot on the list. Amazon and Apple rounded out the top three.

• This year's Fortune 500 companies made up two-thirds of the U.S. GDP, totaling $18.8 trillion in revenues, the publisher said.
• The revenue threshold for making this year's Fortune 500 was $7.1 billion, down 2% from a year ago.
• Retailers, utilities and insurance companies led all industries with the most Fortune 500 companies on the list.

Go deeper for the full list (subscription required).