The last time this happened was during the second half of 2008, and the beginning of that oil price crash preceded the great financial collapse that happened later that year by several months.  Well, now it is happening again, but this time the stakes are even higher.  When the price of oil falls dramatically, that is a sign that economic activity is slowing down.  It can also have a tremendously destabilizing affect on financial markets.  As you will read about below, energy companies now account for approximately 20 percent of the junk bond market.  And a junk bond implosion is usually a signal that a major stock market crash is on the way.  So if you are looking for a "canary in the coal mine", keep your eye on the performance of energy junk bonds.  If they begin to collapse, that is a sign that all hell is about to break loose on Wall Street.

It would be difficult to overstate the importance of the shale oil boom to the U.S. economy.  Thanks to this boom, the United States has become the largest oil producer on the entire planet.

Yes, the U.S. now actually produces more oil than either Saudi Arabia or Russia.  This "revolution" has resulted in the creation of  millions of jobs since the last recession, and it has been one of the key factors that has kept the percentage of Americans that are employed fairly stable.

Unfortunately, the shale oil boom is coming to an abrupt end.  As a recent Vox article discussed, OPEC has essentially declared a price war on U.S. shale oil producers…