Energy Policy: When America's biggest oil refiner contemplates putting almost a third of its refineries on the market, Congress should sit up and take notice. The business climate it has created is hurting our economy.

Valero Energy Corp. is an industry leader that refines more oil than any other in the U.S. The San Antonio, Texas, company had a good run in the stock market this decade, rising 1,400% before earnings topped last year. But it's no longer so easy for the company or any refiner.

Valero will probably sell three of its 17 refineries this year and maybe two more later to focus on its core operations amid what CEO Bill Klesse acknowledged on Tuesday is a weak economy.

But maybe that's because the environment for the energy business in the U.S. has turned downright hostile.

Upstream, oil drilling is off-limits, crimping supply and driving prices ever higher. Downstream, refiners are hit by not only high energy prices, but also bureaucratic regulations, environmental lobbies and special interests that make moving to Asia, where economic growth is still valued, more attractive.