Dave Van Assche didn’t fret too much when oil prices started to slide in late 2014. The postal services business he had built over three short years was thriving, catering to the tens of thousands of people who, like him, had streamed into North Dakota to strike it rich during an unprecedented oil boom. But the price drop quickened, due in part to a supply glut from the 1.2 million barrels of oil North Dakota was pumping each day. Within a year, oil prices were down more than 70 percent, and North Dakota’s oil rush stalled. The daily take at Van Assche’s business has sunk from a peak of $2,500 to at best $600 now. Unwilling to lay off his […]