The top chart shows the total number of employees in the oil extraction area. Yes, it increased from 120,000-200,000 between 2005 and 2015. That's a whopping 80,000. But as the bottom chart shows, the total number of oil jobs is still less than 1% of all payroll jobs.
Let's assume a 4-1 multiplier effect -- for every 1 oil extraction job created, 4 additional jobs are created. That would only be a total of 320,000 jobs -- about 2-3 months of job gains at the current pace of creation.
There's just not much here from an employment perspective.