Doing a quick check of revenue to headcount based on information readily available on macrotrends.com to compare company decisions on layoffs.
Headcount is EOY 2019 while revenue is quarter ending 6/30/2020
Company - (recent revenue (B)/ headcount)*1000
Marathon - (15.0 / 60910) = 0.25
ExxonMobil - (32.6 / 74900) = 0.43
Chevron - (13.5/48200) = 0.28
BP - (31.2 / 70100) = 0.44
Shell - (32.5 / 83000) = 0.39
Revenue is a terrible metric. You want to know how a company manages that revenue - that is the important measure. Use operating earnings or cash flow from operations or free cash flow.
Marathon: $ 9 M OCF 2nd quarter
Revenue is not really a great metric. Operating Cash Flow probably better.
Company - (2Q20 OCF ($M) / headcount) * 1e6 = $ OCF per employee per quarter
Marathon - (___ / 60,910) = $ 150
ExxonMobil - ( $0 / 74,900) = $ 0
Chevron - ($ 80 / 48,200) = $ 1,600
BP - ($ 3,737 / 70,100) = $ 53,000
Shell - ($2,564 / 83,000) = $ 31,000
As you can see, literally everyone has more positive cash flow per employee than ExxonMobil.
Those numbers will look even better after November