The tanks in Cushing, Oklahoma, are hitting bottom. The oil market is about to hit a tipping point | CNN Business

Cushing, Oklahoma, dubs itself the pipeline crossroads of the world. The tagline is emblazoned on a giant roadside sign fashioned out of pipes on the corner of Main Street and South Stiles Road. It has a valve and everything. In 1912, Tom Slick (his real name) was passing through what’s now Drumright, Oklahoma, when he smelled oil. He bought the land for $1 an acre and started digging, uncovering what was then Oklahoma’s biggest oil well. Today, neighboring Cushing is the hub of America’s energy market. It literally provides the oil plumbing for the United States. It’s where America’s benchmark West Texas Intermediate oil is priced and warehoused. From there, it’s piped to refineries around the country. In normal times, Cushing stores around 40 million barrels of oil with capacity of up to 75 million. Cushing’s current inventory is 21.6 million barrels, according to the US Energy Information Administration. That’s dangerously close to operational stress levels, the tipping point at which Cushing struggles to supply all of its customers with the oil they demand. When Cushing’s reserves get below 20 million, they effectively hit empty, scraping the bottom of the bar