Here we go. This is national, but beggars can't be choosers. As expected, hours are in fact pretty volatile:
Interestingly, so are hourly earnings to some degree:
So nationally, at least, total earnings per week per employee is down from recent peaks due to a combination of both lower hours and lower hourly wages. But again, it is all very volatile.
Note that is just production/non-supervisory, so doesn't include supervisors, management, scientists, engineers, and so on. Those people average higher hourly wages but lower weekly hours, which you can figure out from the totals reported here:
http://www.bls.gov/iag/tgs/iag211.htm
Note also that a lot of those people are in fact included in the Mining and Logging totals. So that reported +6500 in Mining and Logging in the region since 2010 does include such supervisors, scientists, and engineers. That doesn't mean it includes quite everyone--for example, I know a lawyer who is now almost exclusively doing gas leases, and I don't think that would be included. But it looks to me like a Petroleum Engineer, say, would be in the Mining and Logging total, not hidden in the Professional and Business Services total.
Finally, a little crude analysis. Per the link above, nationally for Oil and Gas you get an average of $42.35 for hourly wages and 41.8 for weekly hours (this is for February 2015), which totals to $1770.23. Again, this includes production/non-supervisory, but also various supervisory, scientists, engineers, and so on.
Professional and Business services (again nationally, February 2015) is at $29.80 and 36.2, so $1078.76.
However, 6500 times $1770.23 is $11,506,495, and 20500 times $1078.76 is $22,114,580. So even accounting for the far higher wages/hours, the sheer number of Professional and Business Services additions works out to about twice the increase in total wages per week.
Now this again is imperfect--I'm using a mix of national hours/wages and local employment counts, and there are probably some directly Energy-related jobs in the Professional and Business Services count. Conversely, Mining and Logging is not all Oil and Gas, and I'm not sure who is actually employed here in the Pittsburgh region versus being employed back in HQs and labs elsewhere (I'd guess the mix here is more weighted to production than down in Texas, for example). Generally, I am looking at industry-wide or sector-wide wage averages, but really we want to know the net marginal wage effect, meaning the wages of the new ones added, then minus any lost.
Still, bottomline--I remain comfortable guessing that the total addition of wages from local growth in non-Energy Professional and Business Services is higher than the total addition from local growth in Energy. There are just too many new employees in the former category to make it likely that Energy can catch up.